From 8ca7d57e16883816c4398b9111cb9797e21355d2 Mon Sep 17 00:00:00 2001 From: Anssi Hannula Date: Sat, 2 Jan 2010 01:31:47 +0000 Subject: monitor-get-edid-using-vbe: o remove all x86emu and vga softbootloader code, and always use the LRMI interface which was previously the backup one on 32-bit x86; libx86 is now used instead of liblrmi, allowing the use of LRMI interface on non-x86 hosts as well (fixes Mandriva bug #53866, which was caused by a bug in the removed code) --- Makefile | 14 +- NEWS | 7 + get-edid.h | 3 +- int10/AsmMacros.h | 458 -- int10/Makefile | 19 - int10/README | 35 - int10/emu_vm86.c | 150 - int10/i10_int.c | 195 - int10/i10_io.c | 108 - int10/i10_pci.c | 866 --- int10/i10_v86.c | 512 -- int10/i10_vbios.c | 606 --- int10/pci.h | 127 - int10/v86bios.h | 215 - int10/vbios.h | 6 - int10/vm86_struct.h | 135 - monitor-get-edid-using-vbe.c | 20 +- vbe.c | 127 +- x86emu/Makefile | 61 - x86emu/debug.c | 430 -- x86emu/decode.c | 1092 ---- x86emu/fpu.c | 965 ---- x86emu/ops.c | 11697 ----------------------------------------- x86emu/ops2.c | 2897 ---------- x86emu/prim_ops.c | 2722 ---------- x86emu/sys.c | 609 --- x86emu/validate.c | 765 --- x86emu/x86emu.h | 198 - x86emu/x86emu/debug.h | 210 - x86emu/x86emu/decode.h | 88 - x86emu/x86emu/fpu.h | 61 - x86emu/x86emu/fpu_regs.h | 119 - x86emu/x86emu/ops.h | 45 - x86emu/x86emu/prim_asm.h | 970 ---- x86emu/x86emu/prim_ops.h | 142 - x86emu/x86emu/prim_x86_gcc.h | 79 - x86emu/x86emu/regs.h | 337 -- x86emu/x86emu/types.h | 105 - x86emu/x86emu/x86emui.h | 102 - 39 files changed, 24 insertions(+), 27273 deletions(-) delete mode 100644 int10/AsmMacros.h delete mode 100644 int10/Makefile delete mode 100644 int10/README delete mode 100644 int10/emu_vm86.c delete mode 100644 int10/i10_int.c delete mode 100644 int10/i10_io.c delete mode 100644 int10/i10_pci.c delete mode 100644 int10/i10_v86.c delete mode 100644 int10/i10_vbios.c delete mode 100644 int10/pci.h delete mode 100644 int10/v86bios.h delete mode 100644 int10/vbios.h delete mode 100644 int10/vm86_struct.h delete mode 100644 x86emu/Makefile delete mode 100644 x86emu/debug.c delete mode 100644 x86emu/decode.c delete mode 100644 x86emu/fpu.c delete mode 100644 x86emu/ops.c delete mode 100644 x86emu/ops2.c delete mode 100644 x86emu/prim_ops.c delete mode 100644 x86emu/sys.c delete mode 100644 x86emu/validate.c delete mode 100644 x86emu/x86emu.h delete mode 100644 x86emu/x86emu/debug.h delete mode 100644 x86emu/x86emu/decode.h delete mode 100644 x86emu/x86emu/fpu.h delete mode 100644 x86emu/x86emu/fpu_regs.h delete mode 100644 x86emu/x86emu/ops.h delete mode 100644 x86emu/x86emu/prim_asm.h delete mode 100644 x86emu/x86emu/prim_ops.h delete mode 100644 x86emu/x86emu/prim_x86_gcc.h delete mode 100644 x86emu/x86emu/regs.h delete mode 100644 x86emu/x86emu/types.h delete mode 100644 x86emu/x86emu/x86emui.h diff --git a/Makefile b/Makefile index 2a363d4..c01369c 100644 --- a/Makefile +++ b/Makefile @@ -27,22 +27,14 @@ endif CPPFLAGS = -I. CFLAGS = -O -Wall -g -OBJS = monitor-get-edid-using-vbe.c vbe.o libint10.a libx86emu.a +OBJS = monitor-get-edid-using-vbe.c vbe.o -ifeq (i386,$(ARCH)) -monitor-get-edid-using-vbe: LDFLAGS += -llrmi -endif +monitor-get-edid-using-vbe: LDFLAGS += -lx86 all: $(TARGETS) monitor-get-edid-using-vbe: $(OBJS) -libx86emu.a: x86emu/*.c - $(MAKE) -C x86emu - -libint10.a: int10/*.c - $(MAKE) -C int10 - install: install -d $(DESTDIR)$(bindir) install -d $(DESTDIR)$(sbindir) @@ -54,8 +46,6 @@ endif ln -s monitor-edid $(DESTDIR)$(sbindir)/monitor-get-edid clean: - $(MAKE) -C int10 clean - $(MAKE) -C x86emu clean $(RM) $(TARGETS) *.a *.o *~ rm -rf $(NAME)-$(VERSION) $(NAME)-$(VERSION).tar.bz2 diff --git a/NEWS b/NEWS index a6cecb8..01fa9fa 100644 --- a/NEWS +++ b/NEWS @@ -1,3 +1,10 @@ +- monitor-get-edidi-using-vbe: + o remove all x86emu and vga softbootloader code, and always use the + LRMI interface which was previously the backup one on 32-bit x86; + libx86 is now used instead of liblrmi, allowing the use of LRMI + interface on non-x86 hosts as well (fixes Mandriva bug #53866, which + was caused by a bug in the removed code) + Version 2.5 - 18 October 2009 - monitor-probe-using-X: diff --git a/get-edid.h b/get-edid.h index 9de1cd9..4b82204 100644 --- a/get-edid.h +++ b/get-edid.h @@ -1,4 +1,3 @@ int verbose; -struct hd_data_struct; -int get_edid(struct hd_data_struct *hd_data, char *edid, int port); +int get_edid(char *edid, int port); diff --git a/int10/AsmMacros.h b/int10/AsmMacros.h deleted file mode 100644 index 68f9558..0000000 --- a/int10/AsmMacros.h +++ /dev/null @@ -1,458 +0,0 @@ -/* $XConsortium: AsmMacros.h /main/13 1996/10/25 11:33:12 kaleb $ */ -/* - * (c) Copyright 1993,1994 by David Wexelblat - * - * Permission is hereby granted, free of charge, to any person obtaining a - * copy of this software and associated documentation files (the "Software"), - * to deal in the Software without restriction, including without limitation - * the rights to use, copy, modify, merge, publish, distribute, sublicense, - * and/or sell copies of the Software, and to permit persons to whom the - * Software is furnished to do so, subject to the following conditions: - * - * The above copyright notice and this permission notice shall be included in - * all copies or substantial portions of the Software. - * - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR - * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, - * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL - * DAVID WEXELBLAT BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, - * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF - * OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE - * SOFTWARE. - * - * Except as contained in this notice, the name of David Wexelblat shall not be - * used in advertising or otherwise to promote the sale, use or other dealings - * in this Software without prior written authorization from David Wexelblat. - * - */ -/* - * Copyright 1997 - * Digital Equipment Corporation. All rights reserved. - * This software is furnished under license and may be used and copied only in - * accordance with the following terms and conditions. Subject to these - * conditions, you may download, copy, install, use, modify and distribute - * this software in source and/or binary form. No title or ownership is - * transferred hereby. - * - * 1) Any source code used, modified or distributed must reproduce and retain - * this copyright notice and list of conditions as they appear in the source - * file. - * - * 2) No right is granted to use any trade name, trademark, or logo of Digital - * Equipment Corporation. Neither the "Digital Equipment Corporation" name - * nor any trademark or logo of Digital Equipment Corporation may be used - * to endorse or promote products derived from this software without the - * prior written permission of Digital Equipment Corporation. - * - * 3) This software is provided "AS-IS" and any express or implied warranties, - * including but not limited to, any implied warranties of merchantability, - * fitness for a particular purpose, or non-infringement are disclaimed. In - * no event shall DIGITAL be liable for any damages whatsoever, and in - * particular, DIGITAL shall not be liable for special, indirect, - * consequential, or incidental damages or damages for - * lost profits, loss of revenue or loss of use, whether such damages arise - * in contract, - * negligence, tort, under statute, in equity, at law or otherwise, even if - * advised of the possibility of such damage. - * - */ - -/* $XFree86: xc/programs/Xserver/hw/xfree86/SuperProbe/AsmMacros.h,v 3.14 1999/09/25 14:36:58 dawes Exp $ */ - - -#if defined(__GNUC__) - -#if defined(linux) && (defined(__alpha__) || defined(__ia64__)) - -#include - -#undef inb -#undef inw -#undef inl -#undef outb -#undef outw -#undef outl - -static __inline__ unsigned int inb(unsigned long int p) { return _inb(p); }; -static __inline__ unsigned int inw(unsigned long int p) { return _inw(p); }; -static __inline__ unsigned int inl(unsigned long int p) { return _inl(p); }; -static __inline__ void outb(unsigned long int p, unsigned char v) { _outb(v,p); }; -static __inline__ void outw(unsigned long int p, unsigned short v) { _outw(v,p); }; -static __inline__ void outl(unsigned long int p, unsigned int v) { _outl(v,p); }; - -#else - -#if defined(__sparc__) -#ifndef ASI_PL -#define ASI_PL 0x88 -#endif - -static __inline__ void -outb(port, val) -unsigned long port; -char val; -{ - __asm__ __volatile__("stba %0, [%1] %2" : : "r" (val), "r" (port), "i" (ASI_PL)); -} - -static __inline__ void -outw(port, val) -unsigned long port; -char val; -{ - __asm__ __volatile__("stha %0, [%1] %2" : : "r" (val), "r" (port), "i" (ASI_PL)); -} - -static __inline__ void -outl(port, val) -unsigned long port; -char val; -{ - __asm__ __volatile__("sta %0, [%1] %2" : : "r" (val), "r" (port), "i" (ASI_PL)); -} - -static __inline__ unsigned int -inb(port) -unsigned long port; -{ - unsigned char ret; - __asm__ __volatile__("lduba [%1] %2, %0" : "=r" (ret) : "r" (port), "i" (ASI_PL)); - return ret; -} - -static __inline__ unsigned int -inw(port) -unsigned long port; -{ - unsigned char ret; - __asm__ __volatile__("lduha [%1] %2, %0" : "=r" (ret) : "r" (port), "i" (ASI_PL)); - return ret; -} - -static __inline__ unsigned int -inl(port) -unsigned long port; -{ - unsigned char ret; - __asm__ __volatile__("lda [%1] %2, %0" : "=r" (ret) : "r" (port), "i" (ASI_PL)); - return ret; -} -#else -#ifdef __arm32__ -unsigned int IOPortBase; /* Memory mapped I/O port area */ - -static __inline__ void -outb(port, val) - short port; - char val; -{ - if ((unsigned short)port >= 0x400) return; - - *(volatile unsigned char*)(((unsigned short)(port))+IOPortBase) = val; -} - -static __inline__ void -outw(port, val) - short port; - short val; -{ - if ((unsigned short)port >= 0x400) return; - - *(volatile unsigned short*)(((unsigned short)(port))+IOPortBase) = val; -} - -static __inline__ void -outl(port, val) - short port; - int val; -{ - if ((unsigned short)port >= 0x400) return; - - *(volatile unsigned long*)(((unsigned short)(port))+IOPortBase) = val; -} - -static __inline__ unsigned int -inb(port) - short port; -{ - if ((unsigned short)port >= 0x400) return((unsigned int)-1); - - return(*(volatile unsigned char*)(((unsigned short)(port))+IOPortBase)); -} - -static __inline__ unsigned int -inw(port) - short port; -{ - if ((unsigned short)port >= 0x400) return((unsigned int)-1); - - return(*(volatile unsigned short*)(((unsigned short)(port))+IOPortBase)); -} - -static __inline__ unsigned int -inl(port) - short port; -{ - if ((unsigned short)port >= 0x400) return((unsigned int)-1); - - return(*(volatile unsigned long*)(((unsigned short)(port))+IOPortBase)); -} -#else /* __arm32__ */ -#if defined(Lynx) && defined(__powerpc__) -extern unsigned char *ioBase; - -static volatile void -eieio() -{ - __asm__ __volatile__ ("eieio"); -} - -static void -outb(port, value) -short port; -unsigned char value; -{ - *(uchar *)(ioBase + port) = value; eieio(); -} - -static void -outw(port, value) -short port; -unsigned short value; -{ - *(unsigned short *)(ioBase + port) = value; eieio(); -} - -static void -outl(port, value) -short port; -unsigned long value; -{ - *(unsigned long *)(ioBase + port) = value; eieio(); -} - -static unsigned char -inb(port) -short port; -{ - unsigned char val; - - val = *((unsigned char *)(ioBase + port)); eieio(); - return(val); -} - -static unsigned short -inw(port) -short port; -{ - unsigned short val; - - val = *((unsigned short *)(ioBase + port)); eieio(); - return(val); -} - -static unsigned long -inl(port) -short port; -{ - unsigned long val; - - val = *((unsigned long *)(ioBase + port)); eieio(); - return(val); -} - -#else -#if defined(__FreeBSD__) && defined(__alpha__) - -#include - -extern void outb(u_int32_t port, u_int8_t val); -extern void outw(u_int32_t port, u_int16_t val); -extern void outl(u_int32_t port, u_int32_t val); -extern u_int8_t inb(u_int32_t port); -extern u_int16_t inw(u_int32_t port); -extern u_int32_t inl(u_int32_t port); - -#else -#ifdef GCCUSESGAS -static __inline__ void -outb(port, val) -short port; -char val; -{ - __asm__ __volatile__("outb %0,%1" : :"a" (val), "d" (port)); -} - -static __inline__ void -outw(port, val) -short port; -short val; -{ - __asm__ __volatile__("outw %0,%1" : :"a" (val), "d" (port)); -} - -static __inline__ void -outl(port, val) -short port; -unsigned int val; -{ - __asm__ __volatile__("outl %0,%1" : :"a" (val), "d" (port)); -} - -static __inline__ unsigned int -inb(port) -short port; -{ - unsigned char ret; - __asm__ __volatile__("inb %1,%0" : - "=a" (ret) : - "d" (port)); - return ret; -} - -static __inline__ unsigned int -inw(port) -short port; -{ - unsigned short ret; - __asm__ __volatile__("inw %1,%0" : - "=a" (ret) : - "d" (port)); - return ret; -} - -static __inline__ unsigned int -inl(port) -short port; -{ - unsigned int ret; - __asm__ __volatile__("inl %1,%0" : - "=a" (ret) : - "d" (port)); - return ret; -} - -#else /* GCCUSESGAS */ - -static __inline__ void -outb(port, val) - short port; - char val; -{ - __asm__ __volatile__("out%B0 (%1)" : :"a" (val), "d" (port)); -} - -static __inline__ void -outw(port, val) - short port; - short val; -{ - __asm__ __volatile__("out%W0 (%1)" : :"a" (val), "d" (port)); -} - -static __inline__ void -outl(port, val) - short port; - unsigned int val; -{ - __asm__ __volatile__("out%L0 (%1)" : :"a" (val), "d" (port)); -} - -static __inline__ unsigned int -inb(port) - short port; -{ - unsigned int ret; - __asm__ __volatile__("in%B0 (%1)" : - "=a" (ret) : - "d" (port)); - return ret; -} - -static __inline__ unsigned int -inw(port) - short port; -{ - unsigned int ret; - __asm__ __volatile__("in%W0 (%1)" : - "=a" (ret) : - "d" (port)); - return ret; -} - -static __inline__ unsigned int -inl(port) - short port; -{ - unsigned int ret; - __asm__ __volatile__("in%L0 (%1)" : - "=a" (ret) : - "d" (port)); - return ret; -} - -#endif /* GCCUSESGAS */ -#endif /* Lynx && __powerpc__ */ -#endif /* arm32 */ -#endif /* linux && __sparc__ */ -#endif /* linux && __alpha__ */ -#endif /* __FreeBSD__ && __alpha__ */ - -#if defined(linux) || defined(__arm32__) || (defined(Lynx) && defined(__powerpc__)) - -#define intr_disable() -#define intr_enable() - -#else - -static __inline__ void -intr_disable() -{ - __asm__ __volatile__("cli"); -} - -static __inline__ void -intr_enable() -{ - __asm__ __volatile__("sti"); -} - -#endif /* else !linux && !__arm32__ */ - -#else /* __GNUC__ */ - -#if defined(_MINIX) && defined(_ACK) - -/* inb, outb, inw and outw are defined in the library */ -/* ... but I've no idea if the same is true for inl & outl */ - -u8_t inb(U16_t); -void outb(U16_t, U8_t); -u16_t inw(U16_t); -void outw(U16_t, U16_t); -u32_t inl(U16_t); -void outl(U16_t, U32_t); - -#else /* not _MINIX and _ACK */ - -# if defined(__STDC__) && (__STDC__ == 1) -# ifndef NCR -# define asm __asm -# endif -# endif -# ifdef SVR4 -# include -# ifndef __USLC__ -# define __USLC__ -# endif -# endif -#ifndef SCO325 -# include -#else -# include "../common/scoasm.h" -#endif -#define intr_disable() asm("cli") -#define intr_enable() asm("sti") - -#endif /* _MINIX and _ACK */ -#endif /* __GNUC__ */ diff --git a/int10/Makefile b/int10/Makefile deleted file mode 100644 index de02cd2..0000000 --- a/int10/Makefile +++ /dev/null @@ -1,19 +0,0 @@ -CC = gcc -INCS = -I.. -I. -CFLAGS = -O -Wall -SRCS = emu_vm86.c i10_int.c i10_io.c i10_pci.c i10_v86.c i10_vbios.c -OBJS = $(SRCS:%.c=%.o) - -TARGETLIB = ../libint10.a - -all: $(TARGETLIB) - -$(TARGETLIB): $(OBJS) - @ar rv $(TARGETLIB) $(OBJS) - -%.o: %.c - $(CC) $(CFLAGS) $(INCS) -c $< -o $@ - -clean: - @rm -f $(TARGETLIB) - @rm -f $(OBJS) validate.o diff --git a/int10/README b/int10/README deleted file mode 100644 index 4b7d0fa..0000000 --- a/int10/README +++ /dev/null @@ -1,35 +0,0 @@ - -This is a preliminary version of a VGA softbooter for LINUX. - -It makes use of the of the vm86() call and is therefore only -usable on ix86 systems. -There are plans to port this program to use a x86 emulator -like x86emu. Also it may be ported to other operating systems. - -So far it has been tested on a small number of cards. It might -well be that it will fail on your card. - -If you need to make modifications to the programs to be able -to boot your card please let the author know. - -So far there is no command line interface. All options need -to be hardcoded. You can do this by editing debug.h. You can -turn on a bunch of debug output. Other options allow you to -boot the primary card (CONFIG_ACTIVE_DEVICE), save the bios -to a file (SAVE_BIOS), and map the original system bios -(MAP_SYS_BIOS). - -The author wants to thank - Hans Lermen (dosemu) - and - Kendall Bennett (x86emu) -for their support. - -Parts of the code - especially in v86.c and io.c - are based on code -taken from dosemu. Parts of the code in int.c are based on code taken -from x86emu - -Egbert Eich. - - - diff --git a/int10/emu_vm86.c b/int10/emu_vm86.c deleted file mode 100644 index 8cd69b2..0000000 --- a/int10/emu_vm86.c +++ /dev/null @@ -1,150 +0,0 @@ -#include -#include -#include "vm86_struct.h" - -#define INT2PTR(a) ((a) + (unsigned char *) 0) - -#include "../x86emu/x86emu.h" -#include "AsmMacros.h" - -int emu_vm86_ret; - -static u8 Mem_rb(u32 addr) { - return *(u8 *)(INT2PTR(addr)); -} -static void Mem_wb(u32 addr, u8 val) { - *(u8 *)INT2PTR(addr) = val; -} -#ifdef __ia64__ - -static u16 Mem_rw(u32 addr) { - return *(u8 *)INT2PTR(addr) | *(u8 *)INT2PTR(addr + 1) << 8; -} -static u32 Mem_rl(u32 addr) { - return *(u8 *)INT2PTR(addr) | *(u8 *)INT2PTR(addr + 1) << 8 | - *(u8 *)INT2PTR(addr + 2) << 16 | *(u8 *)INT2PTR(addr + 3) << 24; -} -static void Mem_ww(u32 addr, u16 val) { - *(u8 *)INT2PTR(addr) = val; - *(u8 *)INT2PTR(addr + 1) = val >> 8; -} -static void Mem_wl(u32 addr, u32 val) { - *(u8 *)INT2PTR(addr) = val; - *(u8 *)INT2PTR(addr + 1) = val >> 8; - *(u8 *)INT2PTR(addr + 2) = val >> 16; - *(u8 *)INT2PTR(addr + 3) = val >> 24; -} - -#else - -static u16 Mem_rw(u32 addr) { - return *(u16 *)INT2PTR(addr); -} -static u32 Mem_rl(u32 addr) { - return *(u32 *)INT2PTR(addr); -} -static void Mem_ww(u32 addr, u16 val) { - *(u16 *)INT2PTR(addr) = val; -} -static void Mem_wl(u32 addr, u32 val) { - *(u32 *)INT2PTR(addr) = val; -} - -#endif - -static void do_int(int num) { - emu_vm86_ret = VM86_INTx | (num << 8); - M.x86.intr = INTR_HALTED; -} - - -int -emu_vm86(struct vm86_struct *vm) -{ - int i; - - X86EMU_memFuncs memFuncs; - X86EMU_intrFuncs intFuncs[256]; - X86EMU_pioFuncs pioFuncs; - - memFuncs.rdb = Mem_rb; - memFuncs.rdw = Mem_rw; - memFuncs.rdl = Mem_rl; - memFuncs.wrb = Mem_wb; - memFuncs.wrw = Mem_ww; - memFuncs.wrl = Mem_wl; - X86EMU_setupMemFuncs(&memFuncs); - - pioFuncs.inb = (u8(*)(u16))inb; - pioFuncs.inw = (u16(*)(u16))inw; - pioFuncs.inl = (u32(*)(u16))inl; - pioFuncs.outb = (void(*)(u16, u8))outb; - pioFuncs.outw = (void(*)(u16, u16))outw; - pioFuncs.outl = (void(*)(u16, u32))outl; - X86EMU_setupPioFuncs(&pioFuncs); - - for (i=0;i<256;i++) - intFuncs[i] = do_int; - X86EMU_setupIntrFuncs(intFuncs); - - M.mem_base = 0; - M.mem_size = 1024*1024 + 1024; - - M.x86.R_EAX = vm->regs.eax; - M.x86.R_EBX = vm->regs.ebx; - M.x86.R_ECX = vm->regs.ecx; - M.x86.R_EDX = vm->regs.edx; - - M.x86.R_ESP = vm->regs.esp; - M.x86.R_EBP = vm->regs.ebp; - M.x86.R_ESI = vm->regs.esi; - M.x86.R_EDI = vm->regs.edi; - M.x86.R_EIP = vm->regs.eip; - M.x86.R_EFLG = vm->regs.eflags; - - M.x86.R_CS = vm->regs.cs; - M.x86.R_DS = vm->regs.ds; - M.x86.R_SS = vm->regs.ss; - M.x86.R_ES = vm->regs.es; - M.x86.R_FS = vm->regs.fs; - M.x86.R_GS = vm->regs.gs; - - emu_vm86_ret = 0; - X86EMU_exec(); - - vm->regs.eax = M.x86.R_EAX; - vm->regs.ebx = M.x86.R_EBX; - vm->regs.ecx = M.x86.R_ECX; - vm->regs.edx = M.x86.R_EDX; - - vm->regs.esp = M.x86.R_ESP; - vm->regs.ebp = M.x86.R_EBP; - vm->regs.esi = M.x86.R_ESI; - vm->regs.edi = M.x86.R_EDI; - vm->regs.eip = M.x86.R_EIP; - vm->regs.eflags = M.x86.R_EFLG; - - vm->regs.cs = M.x86.R_CS; - vm->regs.ds = M.x86.R_DS; - vm->regs.ss = M.x86.R_SS; - vm->regs.es = M.x86.R_ES; - vm->regs.fs = M.x86.R_FS; - vm->regs.gs = M.x86.R_GS; - - if (emu_vm86_ret == 0 && *(unsigned char *)INT2PTR(((u32)M.x86.R_CS << 4) + (M.x86.R_IP - 1)) == 0xf4) - { - vm->regs.eip--; - return VM86_UNKNOWN; - } - return emu_vm86_ret ? emu_vm86_ret : -1; -} - -void -printk(const char *fmt, ...) -{ - va_list argptr; - va_start(argptr, fmt); - vfprintf(stderr, fmt, argptr); - va_end(argptr); -} - diff --git a/int10/i10_int.c b/int10/i10_int.c deleted file mode 100644 index 99a009d..0000000 --- a/int10/i10_int.c +++ /dev/null @@ -1,195 +0,0 @@ -/* - * Copyright 1999 Egbert Eich - * - * Permission to use, copy, modify, distribute, and sell this software and its - * documentation for any purpose is hereby granted without fee, provided that - * the above copyright notice appear in all copies and that both that - * copyright notice and this permission notice appear in supporting - * documentation, and that the name of the authors not be used in - * advertising or publicity pertaining to distribution of the software without - * specific, written prior permission. The authors makes no representations - * about the suitability of this software for any purpose. It is provided - * "as is" without express or implied warranty. - * - * THE AUTHORS DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, - * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO - * EVENT SHALL THE AUTHORS BE LIABLE FOR ANY SPECIAL, INDIRECT OR - * CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, - * DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER - * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR - * PERFORMANCE OF THIS SOFTWARE. - */ -#if defined(__alpha__) || defined (__ia64__) -#include -#endif - -#include "v86bios.h" -#include "AsmMacros.h" -#include "pci.h" - -static int int1A_handler(struct regs86 *regs); -static int int42_handler(int num, struct regs86 *regs); - -int -int_handler(int num, struct regs86 *regs) -{ - switch (num) { - case 0x10: - case 0x42: - return (int42_handler(num,regs)); - case 0x1A: - return (int1A_handler(regs)); - default: - return 0; - } - return 0; -} - -static int -int42_handler(int num,struct regs86 *regs) -{ - unsigned char c; - CARD32 val; - - /* - * video bios has modified these - - * leave it to the video bios to do this - */ - - val = getIntVect(num); - if (val != 0xF000F065) - return 0; - - if ((regs->ebx & 0xff) == 0x32) { - switch (regs->eax & 0xFFFF) { - case 0x1200: - c = inb(0x3cc); - c |= 0x02; - outb(0x3c2,c); - return 1; - case 0x1201: - c = inb(0x3cc); - c &= ~0x02; - outb(0x3c2,c); - return 1; - } - } - if (num == 0x42) - return 1; - else - return 0; -} - -#define SUCCESSFUL 0x00 -#define DEVICE_NOT_FOUND 0x86 -#define BAD_REGISTER_NUMBER 0x87 - -static int -int1A_handler(struct regs86 *regs) -{ - CARD32 Slot; -// PciStructPtr pPci; - - if (! CurrentPci) return 0; /* oops */ - - switch (regs->eax & 0xFFFF) { - case 0xb101: - regs->eax &= 0xFF00; /* no config space/special cycle support */ - regs->edx = 0x20494350; /* " ICP" */ - regs->ebx = 0x0210; /* Version 2.10 */ - regs->ecx &= 0xFF00; - regs->ecx |= (pciMaxBus & 0xFF); /* Max bus number in system */ - regs->eflags &= ~((unsigned long)0x01); /* clear carry flag */ - return 1; - case 0xb102: - if (((regs->edx & 0xFFFF) == CurrentPci->VendorID) && - ((regs->ecx & 0xFFFF) == CurrentPci->DeviceID) && - (regs->esi == 0)) { - regs->eax = (regs->eax & 0x00FF) | (SUCCESSFUL << 8); - regs->eflags &= ~((unsigned long)0x01); /* clear carry flag */ - regs->ebx = pciSlotBX(CurrentPci); - } else { - regs->eax = (regs->eax & 0x00FF) | (DEVICE_NOT_FOUND << 8); - regs->eflags |= ((unsigned long)0x01); /* set carry flag */ - } - return 1; - case 0xb103: - if (((regs->ecx & 0xFF) == CurrentPci->Interface) && - (((regs->ecx & 0xFF00) >> 8) == CurrentPci->SubClass) && - (((regs->ecx & 0xFFFF0000) >> 16) == CurrentPci->BaseClass) && - ((regs->esi & 0xff) == 0)) { - regs->eax = (regs->eax & 0x00FF) | (SUCCESSFUL << 8); - regs->ebx = pciSlotBX(CurrentPci); - regs->eflags &= ~((unsigned long)0x01); /* clear carry flag */ - } else { - regs->eax = (regs->eax & 0x00FF) | (DEVICE_NOT_FOUND << 8); - regs->eflags |= ((unsigned long)0x01); /* set carry flag */ - } - return 1; - case 0xb108: - if ((Slot = findPci(regs->ebx))) { - regs->ecx &= 0xFFFFFF00; - regs->ecx |= PciRead8(regs->edi,Slot); - regs->eax = (regs->eax & 0x00FF) | (SUCCESSFUL << 8); - regs->eflags &= ~((unsigned long)0x01); /* clear carry flag */ - } else { - regs->eax = (regs->eax & 0x00FF) | (BAD_REGISTER_NUMBER << 8); - regs->eflags |= ((unsigned long)0x01); /* set carry flag */ - } - return 1; - case 0xb109: - if ((Slot = findPci(regs->ebx))) { - regs->ecx &= 0xFFFF0000; - regs->ecx |= PciRead16(regs->edi,Slot); - regs->eax = (regs->eax & 0x00FF) | (SUCCESSFUL << 8); - regs->eflags &= ~((unsigned long)0x01); /* clear carry flag */ - } else { - regs->eax = (regs->eax & 0x00FF) | (BAD_REGISTER_NUMBER << 8); - regs->eflags |= ((unsigned long)0x01); /* set carry flag */ - } - return 1; - case 0xb10a: - if ((Slot = findPci(regs->ebx))) { - regs->ecx &= 0; - regs->ecx |= PciRead32(regs->edi,Slot); - regs->eax = (regs->eax & 0x00FF) | (SUCCESSFUL << 8); - regs->eflags &= ~((unsigned long)0x01); /* clear carry flag */ - } else { - regs->eax = (regs->eax & 0x00FF) | (BAD_REGISTER_NUMBER << 8); - regs->eflags |= ((unsigned long)0x01); /* set carry flag */ - } - return 1; - case 0xb10b: - if ((Slot = findPci(regs->ebx))) { - PciWrite8(regs->edi,(CARD8)regs->ecx,Slot); - regs->eax = (regs->eax & 0x00FF) | (SUCCESSFUL << 8); - regs->eflags &= ~((unsigned long)0x01); /* clear carry flag */ - } else { - regs->eax = (regs->eax & 0x00FF) | (BAD_REGISTER_NUMBER << 8); - regs->eflags |= ((unsigned long)0x01); /* set carry flag */ - } - return 1; - case 0xb10c: - if ((Slot = findPci(regs->ebx))) { - PciWrite16(regs->edi,(CARD16)regs->ecx,Slot); - regs->eax = (regs->eax & 0x00FF) | (SUCCESSFUL << 8); - regs->eflags &= ~((unsigned long)0x01); /* clear carry flag */ - } else { - regs->eax = (regs->eax & 0x00FF) | (BAD_REGISTER_NUMBER << 8); - regs->eflags |= ((unsigned long)0x01); /* set carry flag */ - } - return 1; - case 0xb10d: - if ((Slot = findPci(regs->ebx))) { - PciWrite32(regs->edi,(CARD32)regs->ecx,Slot); - regs->eax = (regs->eax & 0x00FF) | (SUCCESSFUL << 8); - regs->eflags &= ~((unsigned long)0x01); /* clear carry flag */ - } else { - regs->eax = (regs->eax & 0x00FF) | (BAD_REGISTER_NUMBER << 8); - regs->eflags |= ((unsigned long)0x01); /* set carry flag */ - } - return 1; - default: - return 0; - } -} diff --git a/int10/i10_io.c b/int10/i10_io.c deleted file mode 100644 index 717356f..0000000 --- a/int10/i10_io.c +++ /dev/null @@ -1,108 +0,0 @@ -/* - * Copyright 1999 Egbert Eich - * - * Permission to use, copy, modify, distribute, and sell this software and its - * documentation for any purpose is hereby granted without fee, provided that - * the above copyright notice appear in all copies and that both that - * copyright notice and this permission notice appear in supporting - * documentation, and that the name of the authors not be used in - * advertising or publicity pertaining to distribution of the software without - * specific, written prior permission. The authors makes no representations - * about the suitability of this software for any purpose. It is provided - * "as is" without express or implied warranty. - * - * THE AUTHORS DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, - * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO - * EVENT SHALL THE AUTHORS BE LIABLE FOR ANY SPECIAL, INDIRECT OR - * CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, - * DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER - * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR - * PERFORMANCE OF THIS SOFTWARE. - */ - -#include -#if defined(__alpha__) || defined (__ia64__) -#include -#endif -#include "AsmMacros.h" -#include "v86bios.h" -#include "pci.h" - - -int -port_rep_inb(CARD16 port, CARD8 *base, int d_f, CARD32 count) -{ - register int inc = d_f ? -1 : 1; - CARD8 *dst = base; - - while (count--) { - *dst = inb(port); - dst += inc; - } - return (dst-base); -} - -int -port_rep_inw(CARD16 port, CARD16 *base, int d_f, CARD32 count) -{ - register int inc = d_f ? -1 : 1; - CARD16 *dst = base; - - while (count--) { - *dst = inw(port); - dst += inc; - } - return (dst-base); -} - -int -port_rep_inl(CARD16 port, CARD32 *base, int d_f, CARD32 count) -{ - register int inc = d_f ? -1 : 1; - CARD32 *dst = base; - - while (count--) { - *dst = inl(port); - dst += inc; - } - return (dst-base); -} - -int -port_rep_outb(CARD16 port, CARD8 *base, int d_f, CARD32 count) -{ - register int inc = d_f ? -1 : 1; - CARD8 *dst = base; - - while (count--) { - outb(port,*dst); - dst += inc; - } - return (dst-base); -} - -int -port_rep_outw(CARD16 port, CARD16 *base, int d_f, CARD32 count) -{ - register int inc = d_f ? -1 : 1; - CARD16 *dst = base; - - while (count--) { - outw(port,*dst); - dst += inc; - } - return (dst-base); -} - -int -port_rep_outl(CARD16 port, CARD32 *base, int d_f, CARD32 count) -{ - register int inc = d_f ? -1 : 1; - CARD32 *dst = base; - - while (count--) { - outl(port,*dst); - dst += inc; - } - return (dst-base); -} diff --git a/int10/i10_pci.c b/int10/i10_pci.c deleted file mode 100644 index 387cebb..0000000 --- a/int10/i10_pci.c +++ /dev/null @@ -1,866 +0,0 @@ -/* - * Copyright 1999 Egbert Eich - * - * Permission to use, copy, modify, distribute, and sell this software and its - * documentation for any purpose is hereby granted without fee, provided that - * the above copyright notice appear in all copies and that both that - * copyright notice and this permission notice appear in supporting - * documentation, and that the name of the authors not be used in - * advertising or publicity pertaining to distribution of the software without - * specific, written prior permission. The authors makes no representations - * about the suitability of this software for any purpose. It is provided - * "as is" without express or implied warranty. - * - * THE AUTHORS DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, - * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO - * EVENT SHALL THE AUTHORS BE LIABLE FOR ANY SPECIAL, INDIRECT OR - * CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, - * DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER - * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR - * PERFORMANCE OF THIS SOFTWARE. - */ -#include -#include -#include -#include -#include -#include -#include -#include -#if defined (__alpha__) || defined (__ia64__) -#include -#endif -#include "AsmMacros.h" - -#include "pci.h" - -#define RESORT 1 -#define FIX_ROM 0 - -/* - * I'm rather simple mindend - therefore I do a poor man's - * pci scan without all the fancy stuff that is done in - * scanpci. However that's all we need. - */ - -PciStructPtr PciStruct = NULL; -PciBusPtr PciBuses = NULL; -PciStructPtr CurrentPci = NULL; -PciStructPtr PciList = NULL; -int pciMaxBus = 0; - -static CARD32 PciCfg1Addr; - -static void readConfigSpaceCfg1(CARD32 bus, CARD32 dev, CARD32 func, - CARD32 *reg); -static int checkSlotCfg1(CARD32 bus, CARD32 dev, CARD32 func); -static int checkSlotCfg2(CARD32 bus, int dev); -static void readConfigSpaceCfg2(CARD32 bus, int dev, CARD32 *reg); -static CARD8 interpretConfigSpace(CARD32 *reg, int busidx, - CARD8 dev, CARD8 func); -static CARD32 findBIOSMap(PciStructPtr pciP, CARD32 *biosSize); -static void restoreMem(PciStructPtr pciP); - - -#ifdef __alpha__ -#define PCI_BUS_FROM_TAG(tag) (((tag) & 0x00ff0000) >> 16) -#define PCI_DFN_FROM_TAG(tag) (((tag) & 0x0000ff00) >> 8) - -#include - -CARD32 -axpPciCfgRead(CARD32 tag) -{ - int bus, dfn; - CARD32 val = 0xffffffff; - - bus = PCI_BUS_FROM_TAG(tag); - dfn = PCI_DFN_FROM_TAG(tag); - - syscall(__NR_pciconfig_read, bus, dfn, tag & 0xff, 4, &val); - return(val); -} - -void -axpPciCfgWrite(CARD32 tag, CARD32 val) -{ - int bus, dfn; - - bus = PCI_BUS_FROM_TAG(tag); - dfn = PCI_DFN_FROM_TAG(tag); - - syscall(__NR_pciconfig_write, bus, dfn, tag & 0xff, 4, &val); -} - -static CARD32 (*readPci)(CARD32 reg) = axpPciCfgRead; -static void (*writePci)(CARD32 reg, CARD32 val) = axpPciCfgWrite; -#else -static CARD32 readPciCfg1(CARD32 reg); -static void writePciCfg1(CARD32 reg, CARD32 val); -#ifndef __ia64__ -static CARD32 readPciCfg2(CARD32 reg); -static void writePciCfg2(CARD32 reg, CARD32 val); -#endif - -static CARD32 (*readPci)(CARD32 reg) = readPciCfg1; -static void (*writePci)(CARD32 reg, CARD32 val) = writePciCfg1; -#endif - -#if defined(__alpha__) || defined(__sparc__) -#define PCI_EN 0x00000000 -#else -#define PCI_EN 0x80000000 -#endif - - -static int numbus; -static int hostbridges = 1; -static unsigned long pciMinMemReg = ~0; - - - -void -scan_pci(int pci_cfg_method) -{ - unsigned short configtype; - - CARD32 reg[64]; - int busidx; - CARD8 cardnum; - CARD8 func; - int idx; - - PciStructPtr pci1; - PciBusPtr pci_b1,pci_b2; - - if(pci_cfg_method) { - configtype = pci_cfg_method; - } - else { -#if defined(__alpha__) || defined(__powerpc__) || defined(__sparc__) || defined(__ia64__) - configtype = 1; -#else - CARD8 tmp1, tmp2; - CARD32 tmp32_1, tmp32_2; - outb(PCI_MODE2_ENABLE_REG, 0x00); - outb(PCI_MODE2_FORWARD_REG, 0x00); - tmp1 = inb(PCI_MODE2_ENABLE_REG); - tmp2 = inb(PCI_MODE2_FORWARD_REG); - if ((tmp1 == 0x00) && (tmp2 == 0x00)) { - configtype = 2; - readPci = readPciCfg2; - writePci = writePciCfg2; - } else { - tmp32_1 = inl(PCI_MODE1_ADDRESS_REG); - outl(PCI_MODE1_ADDRESS_REG, PCI_EN); - tmp32_2 = inl(PCI_MODE1_ADDRESS_REG); - outl(PCI_MODE1_ADDRESS_REG, tmp32_1); - if (tmp32_2 == PCI_EN) { - configtype = 1; - } else { - return; - } - } -#endif - } - - if (configtype == 1) { - busidx = 0; - numbus = 1; - idx = 0; - do { - for (cardnum = 0; cardnum < MAX_DEV_PER_VENDOR_CFG1; cardnum++) { - func = 0; - do { - /* loop over the different functions, if present */ - if (!checkSlotCfg1(busidx,cardnum,func)) { - if (!func) - break; - else { - func++; - continue; - } - } - readConfigSpaceCfg1(busidx,cardnum,func,reg); - - func = interpretConfigSpace(reg,busidx, - cardnum,func); - - if (++idx >= MAX_PCI_DEVICES) - break; - } while (func < 8); - if (idx >= MAX_PCI_DEVICES) - break; - } - if (idx >= MAX_PCI_DEVICES) - break; - } while (++busidx < PCI_MAXBUS); -#if defined(__alpha__) || defined(__powerpc__) || defined(__sparc__) || defined(__ia64__) - /* don't use outl() ;-) */ -#else - outl(PCI_MODE1_ADDRESS_REG, 0); -#endif - } else { - int slot; - - busidx = 0; - numbus = 1; - idx = 0; - do { - for (slot=0xc0; slot<0xd0; slot++) { - if (!checkSlotCfg2(busidx,slot)) - break; - readConfigSpaceCfg2(busidx,slot,reg); - - interpretConfigSpace(reg,busidx, - slot,0); - if (++idx >= MAX_PCI_DEVICES) - break; - } - if (idx >= MAX_PCI_DEVICES) - break; - } while (++busidx < PCI_MAXBUS); - } - - - pciMaxBus = numbus - 1; - - /* link buses */ - pci_b1 = PciBuses; - while (pci_b1) { - pci_b2 = PciBuses; - pci_b1->pBus = NULL; - while (pci_b2) { - if (pci_b1->primary == pci_b2->secondary) - pci_b1->pBus = pci_b2; - pci_b2 = pci_b2->next; - } - pci_b1 = pci_b1->next; - } - pci1 = PciStruct; - while (pci1) { - pci_b2 = PciBuses; - pci1->pBus = NULL; - while (pci_b2) { - if (pci1->bus == pci_b2->secondary) - pci1->pBus = pci_b2; - pci_b2 = pci_b2->next; - } - pci1 = pci1->next; - } - if (RESORT) { - PciStructPtr tmp = PciStruct, tmp1; - PciStruct = NULL; - while (tmp) { - tmp1 = tmp->next; - tmp->next = PciStruct; - PciStruct = tmp; - tmp = tmp1; - } - } - PciList = CurrentPci = PciStruct; -} - -#ifndef __alpha__ -static CARD32 -readPciCfg1(CARD32 reg) -{ - CARD32 val; - - outl(PCI_MODE1_ADDRESS_REG, reg); - val = inl(PCI_MODE1_DATA_REG); - outl(PCI_MODE1_ADDRESS_REG, 0); - return val; -} - -static void -writePciCfg1(CARD32 reg, CARD32 val) -{ - outl(PCI_MODE1_ADDRESS_REG, reg); - outl(PCI_MODE1_DATA_REG,val); - outl(PCI_MODE1_ADDRESS_REG, 0); -} - -#ifndef __ia64__ -static CARD32 -readPciCfg2(CARD32 reg) -{ - CARD32 val; - CARD8 bus = (reg >> 16) & 0xff; - CARD8 dev = (reg >> 11) & 0x1f; - CARD8 num = reg & 0xff; - - outb(PCI_MODE2_ENABLE_REG, 0xF1); - outb(PCI_MODE2_FORWARD_REG, bus); - val = inl((dev << 8) + num); - outb(PCI_MODE2_ENABLE_REG, 0x00); - return val; -} - -static void -writePciCfg2(CARD32 reg, CARD32 val) -{ - CARD8 bus = (reg >> 16) & 0xff; - CARD8 dev = (reg >> 11) & 0x1f; - CARD8 num = reg & 0xff; - - outb(PCI_MODE2_ENABLE_REG, 0xF1); - outb(PCI_MODE2_FORWARD_REG, bus); - outl((dev << 8) + num,val); - outb(PCI_MODE2_ENABLE_REG, 0x00); -} -#endif -#endif - -void -pciVideoDisable(void) -{ - /* disable VGA routing on bridges */ - PciBusPtr pbp = PciBuses; - PciStructPtr pcp = PciStruct; - - while (pbp) { - writePci(pbp->Slot.l | 0x3c, pbp->bctl & ~(CARD32)(8<<16)); - pbp = pbp->next; - } - /* disable display devices */ - while (pcp) { - writePci(pcp->Slot.l | 0x04, pcp->cmd_st & ~(CARD32)3); - writePci(pcp->Slot.l | 0x30, pcp->RomBase & ~(CARD32)1); - pcp = pcp->next; - } -} - -void -pciVideoRestore(void) -{ - /* disable VGA routing on bridges */ - PciBusPtr pbp = PciBuses; - PciStructPtr pcp = PciStruct; - - while (pbp) { - writePci(pbp->Slot.l | 0x3c, pbp->bctl); - pbp = pbp->next; - } - /* disable display devices */ - while (pcp) { - writePci(pcp->Slot.l | 0x04, pcp->cmd_st); - writePci(pcp->Slot.l | 0x30, pcp->RomBase); - pcp = pcp->next; - } -} - -void -EnableCurrent() -{ - PciBusPtr pbp; - PciStructPtr pcp = CurrentPci; - - pciVideoDisable(); - - pbp = pcp->pBus; - while (pbp) { /* enable bridges */ - writePci(pbp->Slot.l | 0x3c, pbp->bctl | (CARD32)(8<<16)); - pbp = pbp->pBus; - } - writePci(pcp->Slot.l | 0x04, pcp->cmd_st | (CARD32)3); - writePci(pcp->Slot.l | 0x30, pcp->RomBase | (CARD32)1); -} - -CARD8 -PciRead8(int offset, CARD32 Slot) -{ - int shift = offset & 0x3; - offset = offset & 0xFC; - return ((readPci(Slot | offset) >> (shift << 3)) & 0xff); -} - -CARD16 -PciRead16(int offset, CARD32 Slot) -{ - int shift = offset & 0x2; - offset = offset & 0xFC; - return ((readPci(Slot | offset) >> (shift << 3)) & 0xffff); -} - -CARD32 -PciRead32(int offset, CARD32 Slot) -{ - offset = offset & 0xFC; - return (readPci(Slot | offset)); -} - -void -PciWrite8(int offset, CARD8 byte, CARD32 Slot) -{ - CARD32 val; - int shift = offset & 0x3; - offset = offset & 0xFC; - val = readPci(Slot | offset); - val &= ~(CARD32)(0xff << (shift << 3)); - val |= byte << (shift << 3); - writePci(Slot | offset, val); -} - -void -PciWrite16(int offset, CARD16 word, CARD32 Slot) -{ - CARD32 val; - int shift = offset & 0x2; - offset = offset & 0xFC; - val = readPci(Slot | offset); - val &= ~(CARD32)(0xffff << (shift << 3)); - val |= word << (shift << 3); - writePci(Slot | offset, val); -} - -void -PciWrite32(int offset, CARD32 lg, CARD32 Slot) -{ - offset = offset & 0xFC; - writePci(Slot | offset, lg); -} - -int -mapPciRom(PciStructPtr pciP) -{ - unsigned long RomBase = 0; - int mem_fd; - unsigned char *mem, *ptr; - unsigned char *scratch = NULL; - int length = 0; - CARD32 biosSize = 0x1000000; - CARD32 enablePci = 0; /* to keep gcc happy */ - - if (!pciP) - pciP = CurrentPci; - - if (FIX_ROM) { - RomBase = findBIOSMap(pciP, &biosSize); - if (!RomBase) { - RomBase = pciP->RomBase & ~(CARD32)0xFF; - } - } else { - RomBase = pciP->RomBase & ~(CARD32)0xFF; - if (~RomBase + 1 < biosSize || !RomBase) - RomBase = findBIOSMap(pciP, &biosSize); - } - - if ((mem_fd = open(MEM_FILE,O_RDONLY))<0) { - perror("opening memory"); - restoreMem(pciP); - return (0); - } - - PciWrite32(0x30,RomBase | 1,pciP->Slot.l); - -#ifdef __alpha__ - mem = ptr = (unsigned char *)mmap(0, biosSize, PROT_READ, - MAP_SHARED, mem_fd, RomBase | _bus_base()); -#else - mem = ptr = (unsigned char *)mmap(0, biosSize, PROT_READ, - MAP_SHARED, mem_fd, RomBase); -#endif - if (pciP != CurrentPci) { - enablePci = PciRead32(0x4,pciP->Slot.l); - PciWrite32(0x4,enablePci | 0x2,pciP->Slot.l); - } - - while ( *ptr == 0x55 && *(ptr+1) == 0xAA) { - unsigned short data_off = *(ptr+0x18) | (*(ptr+0x19)<< 8); - unsigned char *data = ptr + data_off; - unsigned char type; - int i; - - if (*data!='P' || *(data+1)!='C' || *(data+2)!='I' || *(data+3)!='R') { - break; - } - type = *(data + 0x14); - - if (type != 0) { /* not PC-AT image: find next one */ - unsigned int image_length; - unsigned char indicator = *(data + 0x15); - if (indicator & 0x80) /* last image */ - break; - image_length = (*(data + 0x10) - | (*(data + 0x11) << 8)) << 9; - ptr = ptr + image_length; - continue; - } - /* OK, we have a PC Image */ - length = (*(ptr + 2) << 9); - scratch = (unsigned char *)malloc(length); - /* don't use memcpy() here: Reading from bus! */ - for (i=0;iSlot.l); - - /* unmap/close/disable PCI bios mem */ - munmap(mem, biosSize); - close(mem_fd); - /* disable and restore mapping */ - writePci(pciP->Slot.l | 0x30, pciP->RomBase & ~(CARD32)1); - - if (scratch && length) { - memcpy((unsigned char *)V_BIOS, scratch, length); - free(scratch); - } - - restoreMem(pciP); - return length; -} - -CARD32 -findPci(CARD16 slotBX) -{ - CARD32 slot = slotBX << 8; - - if (slot == (CurrentPci->Slot.l & ~PCI_EN)) - return (CurrentPci->Slot.l | PCI_EN); - else { -#if !SHOW_ALL_DEV - PciBusPtr pBus = CurrentPci->pBus; - while (pBus) { - if (slot == (pBus->Slot.l & ~PCI_EN)) - return pBus->Slot.l | PCI_EN; - pBus = pBus->next; - } -#else - PciStructPtr pPci = PciStruct; - while (pPci) { - if (slot == (pPci->Slot.l & ~PCI_EN)) - return pPci->Slot.l | PCI_EN; - pPci = pPci->next; - } -#endif - } - return 0; -} - -CARD16 -pciSlotBX(PciStructPtr pPci) -{ - return (CARD16)((pPci->Slot.l >> 8) & 0xFFFF); -} - -PciStructPtr -findPciDevice(CARD16 vendorID, CARD16 deviceID, char n) -{ - PciStructPtr pPci = CurrentPci; - n++; - - while (pPci) { - if ((pPci->VendorID == vendorID) && (pPci->DeviceID == deviceID)) { - if (!(--n)) break; - } - pPci = pPci->next; - } - return pPci; -} - -PciStructPtr -findPciClass(CARD8 intf, CARD8 subClass, CARD16 class, char n) -{ - PciStructPtr pPci = CurrentPci; - n++; - - while (pPci) { - if ((pPci->Interface == intf) && (pPci->SubClass == subClass) - && (pPci->BaseClass == class)) { - if (!(--n)) break; - } - pPci = pPci->next; - } - return pPci; -} - -static void -readConfigSpaceCfg1(CARD32 bus, CARD32 dev, CARD32 func, CARD32 *reg) -{ - CARD32 config_cmd = PCI_EN | (bus<<16) | - (dev<<11) | (func<<8); - int i; - - for (i = 0; i<64;i+=4) { -#ifdef __alpha__ - reg[i] = axpPciCfgRead(config_cmd | i); -#else - outl(PCI_MODE1_ADDRESS_REG, config_cmd | i); - reg[i] = inl(PCI_MODE1_DATA_REG); -#endif - - } -} - -static int -checkSlotCfg1(CARD32 bus, CARD32 dev, CARD32 func) -{ - CARD32 config_cmd = PCI_EN | (bus<<16) | - (dev<<11) | (func<<8); - CARD32 reg; -#ifdef __alpha__ - reg = axpPciCfgRead(config_cmd); -#else - outl(PCI_MODE1_ADDRESS_REG, config_cmd); - reg = inl(PCI_MODE1_DATA_REG); -#endif - if (reg != 0xFFFFFFFF) - return 1; - else - return 0; -} - -static int -checkSlotCfg2(CARD32 bus, int dev) -{ - CARD32 val; - - outb(PCI_MODE2_ENABLE_REG, 0xF1); - outb(PCI_MODE2_FORWARD_REG, bus); - val = inl(dev << 8); - outb(PCI_MODE2_FORWARD_REG, 0x00); - outb(PCI_MODE2_ENABLE_REG, 0x00); - if (val == 0xFFFFFFFF) - return 0; - if (val == 0xF0F0F0F0) - return 0; - return 1; -} - -static void -readConfigSpaceCfg2(CARD32 bus, int dev, CARD32 *reg) -{ - int i; - - outb(PCI_MODE2_ENABLE_REG, 0xF1); - outb(PCI_MODE2_FORWARD_REG, bus); - for (i = 0; i<64;i+=4) { - reg[i] = inl((dev << 8) + i); - } - outb(PCI_MODE2_ENABLE_REG, 0x00); -} - -static CARD8 -interpretConfigSpace(CARD32 *reg, int busidx, CARD8 dev, CARD8 func) -{ - CARD32 config_cmd; - CARD16 vendor, device; - CARD8 baseclass, subclass; - CARD8 primary, secondary; - CARD8 header, interface; - int i; - - config_cmd = PCI_EN | busidx<<16 | - (dev<<11) | (func<<8); - - for (i = 0x10; i < 0x28; i+=4) { - if (IS_MEM32(reg[i])) - if ((reg[i] & 0xFFFFFFF0) < pciMinMemReg) - pciMinMemReg = (reg[i] & 0xFFFFFFF0); -#ifdef __alpha__ - if (IS_MEM64(reg[i])) { - unsigned long addr = reg[i] | - (unsigned long)(reg[i+4]) << 32; - if ((addr & ~0xfL) < pciMinMemReg) - pciMinMemReg = (addr & ~0xfL); - i+=4; - } -#endif - } - vendor = reg[0] & 0xFFFF; - device = reg[0] >> 16; - baseclass = reg[8] >> 24; - subclass = (reg[8] >> 16) & 0xFF; - interface = (reg[8] >> 8) & 0xFF; - - header = (reg[0x0c] >> 16) & 0xff; - if (BRIDGE_CLASS(baseclass)) { - if (BRIDGE_PCI_CLASS(subclass)) { - PciBusPtr pbp = malloc(sizeof(PciBusRec)); - primary = reg[0x18] & 0xFF; - secondary = (reg[0x18] >> 8) & 0xFF; - pbp->bctl = reg[0x3c]; - pbp->primary = primary; - pbp->secondary = secondary; - pbp->Slot.l = config_cmd; - pbp->next = PciBuses; - PciBuses = pbp; - numbus++; - } else if (BRIDGE_HOST_CLASS(subclass) - && (hostbridges++ > 1)) { - numbus++; - } - } else if (VIDEO_CLASS(baseclass,subclass)) { - PciStructPtr pcp = malloc(sizeof(PciStructRec)); - pcp->RomBase = reg[0x30]; - pcp->cmd_st = reg[4]; - pcp->active = (reg[4] & 0x03) == 3 ? 1 : 0; - pcp->VendorID = vendor; - pcp->DeviceID = device; - pcp->Interface = interface; - pcp->BaseClass = baseclass; - pcp->SubClass = subclass; - pcp->Slot.l = config_cmd; - pcp->bus = busidx; - pcp->dev = dev; - pcp->func = func; - pcp->next = PciStruct; - PciStruct = pcp; - } - if ((func == 0) - && ((header & PCI_MULTIFUNC_DEV) == 0)) - func = 8; - else - func++; - return func; -} - -static CARD32 remapMEM_val; -static int remapMEM_num; - -static int /* map it on some other video device */ -remapMem(PciStructPtr pciP, int num, CARD32 size) -{ - PciStructPtr pciPtr = PciStruct; - int i; - CARD32 org; - CARD32 val; - CARD32 size_n; - - org = PciRead32(num + 0x10,pciP->Slot.l); - - while (pciPtr) { - for (i = 0; i < 20; i=i+4) { - - val = PciRead32(i + 0x10,pciPtr->Slot.l); - /* don't map it on itself */ - if ((org & 0xfffffff0) == (val & 0xfffffff0)) - continue; - if (val && !(val & 1)) - PciWrite32(i + 0x10,0xffffffff,pciPtr->Slot.l); - else - continue; - size_n = PciRead32(i + 0x10,pciPtr->Slot.l); - PciWrite32(i + 0x10,val,pciPtr->Slot.l); - size_n = ~(CARD32)(size_n & 0xfffffff0) + 1; - - if (size_n >= size) { - PciWrite32(num + 0x10,val,pciP->Slot.l); - return 1; - } - } - pciPtr = pciPtr->next; - } - /* last resort: try to go below lowest PCI mem address */ - val = ((pciMinMemReg & ~(CARD32)(size - 1)) - size); - if (val > 0x7fffffff) { - PciWrite32(num + 0x10,val, pciP->Slot.l); - return 1; - } - - return 0; -} - -static void -restoreMem(PciStructPtr pciP) -{ - if (remapMEM_val == 0) return; - PciWrite32(remapMEM_num + 0x10,remapMEM_val,pciP->Slot.l); - return; -} - -static CARD32 -findBIOSMap(PciStructPtr pciP, CARD32 *biosSize) -{ - PciStructPtr pciPtr = PciStruct; - int i; - CARD32 val; - CARD32 size = 4*1024; /* should be fixed: size seems _really_ to be undefined below */ - - PciWrite32(0x30,0xffffffff,pciP->Slot.l); - *biosSize = PciRead32(0x30,pciP->Slot.l); - PciWrite32(0x30,pciP->RomBase,pciP->Slot.l); - *biosSize = ~(*biosSize & 0xFFFFFF00) + 1; - if (*biosSize > (1024 * 1024 * 16)) { - *biosSize = 1024 * 1024 * 16; - } - while (pciPtr) { - if (pciPtr->bus != pciP->bus) { - pciPtr = pciPtr->next; - continue; - } - for (i = 0; i < 20; i=i+4) { - - val = PciRead32(i + 0x10,pciPtr->Slot.l); - if (!(val & 1)) - - PciWrite32(i + 0x10,0xffffffff,pciPtr->Slot.l); - else - continue; - size = PciRead32(i + 0x10,pciPtr->Slot.l); - PciWrite32(i + 0x10,val,pciPtr->Slot.l); - size = ~(CARD32)(size & 0xFFFFFFF0) + 1; - if (size >= *biosSize) { - if (pciP == pciPtr) { /* if same device remap ram*/ - if (!(remapMem(pciP,i,size))) - continue; - remapMEM_val = val; - remapMEM_num = i; - } else { - remapMEM_val = 0; - } - return val & 0xFFFFFF00; - } - } - pciPtr = pciPtr->next; - } - remapMEM_val = 0; - /* very last resort */ - if (pciP->bus == 0 && (pciMinMemReg > *biosSize)) - return (pciMinMemReg - size) & ~(size - 1); - - return 0; -} - -int -cfg1out(CARD16 addr, CARD32 val) -{ - if (addr == 0xCF8) { - PciCfg1Addr = val; - return 1; - } else if (addr == 0xCFC) { - writePci(PciCfg1Addr, val); - return 1; - } - return 0; -} - -int -cfg1in(CARD16 addr, CARD32 *val) -{ - if (addr == 0xCF8) { - *val = PciCfg1Addr; - return 1; - } else if (addr == 0xCFC) { - *val = readPci(PciCfg1Addr); - return 1; - } - return 0; -} - -PciStructPtr -findPciByIDs(int bus, int dev, int func) -{ - PciStructPtr pciP = PciList; - - while (pciP) { - if (pciP->bus == (unsigned) bus && pciP->dev == (unsigned) dev && pciP->func == (unsigned) func) - return pciP; - pciP = pciP->next; - } - return NULL; -} diff --git a/int10/i10_v86.c b/int10/i10_v86.c deleted file mode 100644 index 97bd342..0000000 --- a/int10/i10_v86.c +++ /dev/null @@ -1,512 +0,0 @@ -/* - * Copyright 1999 Egbert Eich - * - * Permission to use, copy, modify, distribute, and sell this software and its - * documentation for any purpose is hereby granted without fee, provided that - * the above copyright notice appear in all copies and that both that - * copyright notice and this permission notice appear in supporting - * documentation, and that the name of the authors not be used in - * advertising or publicity pertaining to distribution of the software without - * specific, written prior permission. The authors makes no representations - * about the suitability of this software for any purpose. It is provided - * "as is" without express or implied warranty. - * - * THE AUTHORS DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, - * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO - * EVENT SHALL THE AUTHORS BE LIABLE FOR ANY SPECIAL, INDIRECT OR - * CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, - * DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER - * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR - * PERFORMANCE OF THIS SOFTWARE. - */ - -#include -#include -#include -#include -#include -#include "vm86_struct.h" -#include -#include "v86bios.h" -#include "AsmMacros.h" - -extern int emu_vm86(struct vm86_struct *vm); - -#define INT2PTR(a) ((a) + (unsigned char *) 0) - -void log_err(char *format, ...) __attribute__ ((format (printf, 1, 2))); - -struct vm86_struct vm86s; - -static int vm86_GP_fault(void); -static int vm86_do_int(int num); -#ifdef __i386__ -static int vm86_rep(struct vm86_struct *ptr); -#endif -void log_registers(void); - -#define CPU_REG(x) (vm86s.regs.x) -#define CPU_REG_LW(reg) (*((CARD16 *)&CPU_REG(reg))) -#define CPU_REG_HW(reg) (*((CARD16 *)&CPU_REG(reg) + 1)) -#define CPU_REG_LB(reg) (*(CARD8 *)&CPU_REG(e##reg)) -#define SEG_ADR(type, seg, reg) type((CPU_REG_LW(seg) << 4) + CPU_REG_LW(e##reg) + (unsigned char *) 0) -#define DF (1 << 10) - -struct pio P; - -void -setup_io(void) -{ - P.inb = (CARD8(*)(CARD16))inb; - P.inw = (CARD16(*)(CARD16))inw; - P.inl = (CARD32(*)(CARD16))inl; - P.outb = (void(*)(CARD16,CARD8))outb; - P.outw = (void(*)(CARD16,CARD16))outw; - P.outl = (void(*)(CARD16,CARD32))outl; -} - - -static void -setup_vm86(unsigned long bios_start, i86biosRegsPtr regs) -{ - CARD32 eip; - CARD16 cs; - - vm86s.flags = VM86_SCREEN_BITMAP; - vm86s.flags = 0; - vm86s.screen_bitmap = 0; - vm86s.cpu_type = CPU_586; - memset(&vm86s.int_revectored, 0xff,sizeof(vm86s.int_revectored)) ; - memset(&vm86s.int21_revectored, 0xff,sizeof(vm86s.int21_revectored)) ; - - eip = bios_start & 0xFFFF; - cs = (bios_start & 0xFF0000) >> 4; - - CPU_REG(eax) = regs->ax; - CPU_REG(ebx) = regs->bx; - CPU_REG(ecx) = regs->cx; - CPU_REG(edx) = regs->dx; - CPU_REG(esi) = 0; - CPU_REG(edi) = regs->di; - CPU_REG(ebp) = 0; - CPU_REG(eip) = eip; - CPU_REG(cs) = cs; - CPU_REG(esp) = 0x100; - CPU_REG(ss) = 0x30; /* This is the standard pc bios stack */ - CPU_REG(es) = regs->es; - CPU_REG(ds) = 0x40; /* standard pc ds */ - CPU_REG(fs) = 0; - CPU_REG(gs) = 0; - CPU_REG(eflags) |= (VIF_MASK | VIP_MASK); -} - -void -collect_bios_regs(i86biosRegsPtr regs) -{ - regs->ax = CPU_REG(eax); - regs->bx = CPU_REG(ebx); - regs->cx = CPU_REG(ecx); - regs->dx = CPU_REG(edx); - regs->es = CPU_REG(es); - regs->ds = CPU_REG(ds); - regs->di = CPU_REG(edi); - regs->si = CPU_REG(esi); -} - -static int do_vm86(int cpuemu) -{ - int retval; - -#ifdef V86BIOS_DEBUG - dump_registers(); -#endif - -#ifdef __i386__ - if(cpuemu) { - retval = emu_vm86(&vm86s); - } - else { - retval = vm86_rep(&vm86s); - } -#else - retval = emu_vm86(&vm86s); -#endif - - switch (VM86_TYPE(retval)) { - case VM86_UNKNOWN: - if (!vm86_GP_fault()) - return 0; - break; - case VM86_STI: - log_err("vm86_sti :-((\n"); - log_registers(); - return 0; - case VM86_INTx: - if (!vm86_do_int(VM86_ARG(retval))) { - log_err("Unknown vm86_int: %X\n",VM86_ARG(retval)); - log_registers(); - return 0; - } - /* I'm not sure yet what to do if we can handle ints */ - break; - case VM86_SIGNAL: - log_err("VBE: received a signal!\n"); - log_registers(); - return 0; - default: - log_err("unknown type(0x%x)=0x%x\n", - VM86_ARG(retval),VM86_TYPE(retval)); - log_registers(); - return 0; - } - - return 1; -} - -void -do_x86(unsigned long bios_start, i86biosRegsPtr regs, int cpuemu) -{ - setup_vm86(bios_start, regs); - while(do_vm86(cpuemu)) {}; - collect_bios_regs(regs); -} - -/* get the linear address */ -#define LIN_PREF_SI ((pref_seg << 4) + CPU_REG_LW(esi)) - -#define LWECX (prefix66 ^ prefix67 ? CPU_REG(ecx) : CPU_REG_LW(ecx)) -#define SET_LWECX(V) do { if (prefix66 ^ prefix67) CPU_REG(ecx) = (V); else CPU_REG_LW(ecx) = (V); } while (0) - -static int -vm86_GP_fault(void) -{ - unsigned char *csp, *lina; - CARD32 org_eip; - int pref_seg; - int done,is_rep,prefix66,prefix67; - - - csp = lina = SEG_ADR((unsigned char *), cs, ip); -#ifdef V86BIOS_DEBUG - printf("exception: \n"); - dump_code(); -#endif - - is_rep = 0; - prefix66 = prefix67 = 0; - pref_seg = -1; - - /* eat up prefixes */ - done = 0; - do { - switch (*(csp++)) { - case 0x66: /* operand prefix */ prefix66=1; break; - case 0x67: /* address prefix */ prefix67=1; break; - case 0x2e: /* CS */ pref_seg=CPU_REG(cs); break; - case 0x3e: /* DS */ pref_seg=CPU_REG(ds); break; - case 0x26: /* ES */ pref_seg=CPU_REG(es); break; - case 0x36: /* SS */ pref_seg=CPU_REG(ss); break; - case 0x65: /* GS */ pref_seg=CPU_REG(gs); break; - case 0x64: /* FS */ pref_seg=CPU_REG(fs); break; - case 0xf2: /* repnz */ - case 0xf3: /* rep */ is_rep=1; break; - default: done=1; - } - } while (!done); - csp--; /* oops one too many */ - org_eip = CPU_REG(eip); - CPU_REG_LW(eip) += (csp - lina); - - switch (*csp) { - - case 0x6c: /* insb */ - /* NOTE: ES can't be overwritten; prefixes 66,67 should use esi,edi,ecx - * but is anyone using extended regs in real mode? */ - /* WARNING: no test for DI wrapping! */ - CPU_REG_LW(edi) += port_rep_inb(CPU_REG_LW(edx), - SEG_ADR((CARD8 *),es,di), - CPU_REG_LW(eflags)&DF, - (is_rep? LWECX:1)); - if (is_rep) SET_LWECX(0); - CPU_REG_LW(eip)++; - break; - - case 0x6d: /* (rep) insw / insd */ - /* NOTE: ES can't be overwritten */ - /* WARNING: no test for _DI wrapping! */ - if (prefix66) { - CPU_REG_LW(edi) += port_rep_inl(CPU_REG_LW(edx), - SEG_ADR((CARD32 *),es,di), - CPU_REG_LW(eflags)&DF, - (is_rep? LWECX:1)); - } - else { - CPU_REG_LW(edi) += port_rep_inw(CPU_REG_LW(edx), - SEG_ADR((CARD16 *),es,di), - CPU_REG_LW(eflags)&DF, - (is_rep? LWECX:1)); - } - if (is_rep) SET_LWECX(0); - CPU_REG_LW(eip)++; - break; - - case 0x6e: /* (rep) outsb */ - if (pref_seg < 0) pref_seg = CPU_REG_LW(ds); - /* WARNING: no test for _SI wrapping! */ - CPU_REG_LW(esi) += port_rep_outb(CPU_REG_LW(edx),(CARD8*)INT2PTR(LIN_PREF_SI), - CPU_REG_LW(eflags)&DF, - (is_rep? LWECX:1)); - if (is_rep) SET_LWECX(0); - CPU_REG_LW(eip)++; - break; - - case 0x6f: /* (rep) outsw / outsd */ - if (pref_seg < 0) pref_seg = CPU_REG_LW(ds); - /* WARNING: no test for _SI wrapping! */ - if (prefix66) { - CPU_REG_LW(esi) += port_rep_outl(CPU_REG_LW(edx), - (CARD32 *)INT2PTR(LIN_PREF_SI), - CPU_REG_LW(eflags)&DF, - (is_rep? LWECX:1)); - } - else { - CPU_REG_LW(esi) += port_rep_outw(CPU_REG_LW(edx), - (CARD16 *)INT2PTR(LIN_PREF_SI), - CPU_REG_LW(eflags)&DF, - (is_rep? LWECX:1)); - } - if (is_rep) SET_LWECX(0); - CPU_REG_LW(eip)++; - break; - - case 0xe5: /* inw xx, inl xx */ - if (prefix66) CPU_REG(eax) = P.inl((int) csp[1]); - else CPU_REG_LW(eax) = P.inw((int) csp[1]); - CPU_REG_LW(eip) += 2; - break; - case 0xe4: /* inb xx */ - CPU_REG_LW(eax) &= ~(CARD32)0xff; - CPU_REG_LB(ax) |= P.inb((int) csp[1]); - CPU_REG_LW(eip) += 2; - break; - case 0xed: /* inw dx, inl dx */ - if (prefix66) CPU_REG(eax) = P.inl(CPU_REG_LW(edx)); - else CPU_REG_LW(eax) = P.inw(CPU_REG_LW(edx)); - CPU_REG_LW(eip) += 1; - break; - case 0xec: /* inb dx */ - CPU_REG_LW(eax) &= ~(CARD32)0xff; - CPU_REG_LB(ax) |= P.inb(CPU_REG_LW(edx)); - CPU_REG_LW(eip) += 1; - break; - - case 0xe7: /* outw xx */ - if (prefix66) P.outl((int)csp[1], CPU_REG(eax)); - else P.outw((int)csp[1], CPU_REG_LW(eax)); - CPU_REG_LW(eip) += 2; - break; - case 0xe6: /* outb xx */ - P.outb((int) csp[1], CPU_REG_LB(ax)); - CPU_REG_LW(eip) += 2; - break; - case 0xef: /* outw dx */ - if (prefix66) P.outl(CPU_REG_LW(edx), CPU_REG(eax)); - else P.outw(CPU_REG_LW(edx), CPU_REG_LW(eax)); - CPU_REG_LW(eip) += 1; - break; - case 0xee: /* outb dx */ - P.outb(CPU_REG_LW(edx), CPU_REG_LB(ax)); - CPU_REG_LW(eip) += 1; - break; - - case 0xf4: -#ifdef V86BIOS_DEBUG - printf("hlt at %p\n", lina); -#endif - return 0; - - case 0x0f: - log_err("CPU 0x0f Trap at eip=0x%lx\n",CPU_REG(eip)); - goto op0ferr; - break; - - case 0xf0: /* lock */ - default: - log_err("unknown reason for exception\n"); - log_registers(); - op0ferr: - log_err("cannot continue\n"); - return 0; - } /* end of switch() */ - return 1; -} - -static int -vm86_do_int(int num) -{ - int val; - struct regs86 regs; - - /* try to run bios interrupt */ - - /* if not installed fall back */ -#define COPY(x) regs.x = CPU_REG(x) -#define COPY_R(x) CPU_REG(x) = regs.x - - COPY(eax); - COPY(ebx); - COPY(ecx); - COPY(edx); - COPY(esi); - COPY(edi); - COPY(ebp); - COPY(eip); - COPY(esp); - COPY(cs); - COPY(ss); - COPY(ds); - COPY(es); - COPY(fs); - COPY(gs); - COPY(eflags); - - if (!(val = int_handler(num,®s))) - if (!(val = run_bios_int(num,®s))) - return val; - - COPY_R(eax); - COPY_R(ebx); - COPY_R(ecx); - COPY_R(edx); - COPY_R(esi); - COPY_R(edi); - COPY_R(ebp); - COPY_R(eip); - COPY_R(esp); - COPY_R(cs); - COPY_R(ss); - COPY_R(ds); - COPY_R(es); - COPY_R(fs); - COPY_R(gs); - COPY_R(eflags); - - return val; -#undef COPY -#undef COPY_R -} - -#ifdef __i386__ - -static int -vm86_rep(struct vm86_struct *ptr) -{ - - int __res; - - /* stay away from %ebx */ - __asm__ __volatile__("push %%ebx\n\tmov %%ecx,%%ebx\n\tpush %%gs\n\tint $0x80\n\tpop %%gs\n\tpop %%ebx\n" - :"=a" (__res):"a" ((int)113), - "c" ((struct vm86_struct *)ptr)); - - if ((__res) < 0) { - errno = -__res; - __res=-1; - } - else errno = 0; - return __res; -} - -#endif - -#ifdef __i386__ - -#define pushw(base, ptr, val) \ -__asm__ __volatile__( \ - "decw %w0\n\t" \ - "movb %h2,(%1,%0)\n\t" \ - "decw %w0\n\t" \ - "movb %b2,(%1,%0)" \ - : "=r" (ptr) \ - : "r" (base), "q" (val), "0" (ptr)) - -#else - -#define pushw(base, ptr, val) { \ - ptr = ((ptr) - 1) & 0xffff; \ - *((unsigned char *)(base) + (ptr)) = (val) >> 8; \ - ptr = ((ptr) - 1) & 0xffff; \ - *((unsigned char *)(base) + (ptr)) = (val); \ - } - -#endif - -int -run_bios_int(int num, struct regs86 *regs) -{ - CARD16 *ssp; - CARD32 sp; - CARD32 eflags; - -#ifdef V86BIOS_DEBUG - static int firsttime = 1; -#endif - /* check if bios vector is initialized */ - if (((CARD16*)0)[(num<<1)+1] == 0x0000) { /* SYS_BIOS_SEG ?*/ - return 0; - } - -#ifdef V86BIOS_DEBUG - if (firsttime) { - dprint(0,0x3D0); - firsttime = 0; - } -#endif - - ssp = (CARD16*)INT2PTR(CPU_REG(ss)<<4); - sp = (CARD32) CPU_REG_LW(esp); - - eflags = regs->eflags; - eflags = ((eflags & VIF_MASK) != 0) - ? (eflags | IF_MASK) : (eflags & ~(CARD32) IF_MASK); - pushw(ssp, sp, eflags); - pushw(ssp, sp, regs->cs); - pushw(ssp, sp, (CARD16)regs->eip); - regs->esp -= 6; - regs->cs = ((CARD16 *) 0)[(num << 1) + 1]; - regs->eip = (regs->eip & 0xFFFF0000) | ((CARD16 *) 0)[num << 1]; -#ifdef V86BIOS_DEBUG - dump_code(); -#endif - regs->eflags = regs->eflags - & ~(VIF_MASK | TF_MASK | IF_MASK | NT_MASK); - return 1; -} - -CARD32 -getIntVect(int num) -{ - return ((CARD32*)0)[num]; -} - -CARD32 -getIP(void) -{ - return (CPU_REG(cs) << 4) + CPU_REG(eip); -} - -void log_registers() -{ - log_err( - " eax %08x, ebx %08x, ecx %08x, edx %08x\n" - " esi %08x, edi %08x, ebp %08x, esp %08x\n" - " ds %04x, es %04x, fs %04x, gs %04x, ss %04x\n" - " cs:eip %04x:%08x\n", - (unsigned) CPU_REG(eax), (unsigned) CPU_REG(ebx), (unsigned) CPU_REG(ecx), (unsigned) CPU_REG(edx), - (unsigned) CPU_REG(esi), (unsigned) CPU_REG(edi), (unsigned) CPU_REG(ebp), (unsigned) CPU_REG(esp), - (unsigned) CPU_REG(ds), (unsigned) CPU_REG(es), - (unsigned) CPU_REG(fs), (unsigned) CPU_REG(gs), (unsigned) CPU_REG(ss), - (unsigned) CPU_REG(cs), (unsigned) CPU_REG(eip) - ); -} - diff --git a/int10/i10_vbios.c b/int10/i10_vbios.c deleted file mode 100644 index 5d12741..0000000 --- a/int10/i10_vbios.c +++ /dev/null @@ -1,606 +0,0 @@ -/* - * Copyright 1999 Egbert Eich - * - * Permission to use, copy, modify, distribute, and sell this software and its - * documentation for any purpose is hereby granted without fee, provided that - * the above copyright notice appear in all copies and that both that - * copyright notice and this permission notice appear in supporting - * documentation, and that the name of the authors not be used in - * advertising or publicity pertaining to distribution of the software without - * specific, written prior permission. The authors makes no representations - * about the suitability of this software for any purpose. It is provided - * "as is" without express or implied warranty. - * - * THE AUTHORS DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, - * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO - * EVENT SHALL THE AUTHORS BE LIABLE FOR ANY SPECIAL, INDIRECT OR - * CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, - * DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER - * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR - * PERFORMANCE OF THIS SOFTWARE. - */ -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#if defined(__alpha__) || defined (__ia64__) -#include -//#elif defined(HAVE_SYS_PERM) -#else -#include -#endif -#include "v86bios.h" -#include "pci.h" -#include "AsmMacros.h" -#include "vbios.h" - -void log_err(char *format, ...) __attribute__ ((format (printf, 1, 2))); - -#define SIZE 0x100000 -#define VRAM_START 0xA0000 -#define VRAM_SIZE 0x1FFFF -#define V_BIOS_SIZE 0x1FFFF -#define BIOS_START 0x7C00 /* default BIOS entry */ - -static CARD8 code[] = { 0xcd, 0x10, 0xf4 }; /* int 0x10, hlt */ -// static CARD8 code13[] = { 0xcd, 0x13, 0xf4 }; /* int 0x13, hlt */ - -static int int10_bios_ok(void); -static int map(void); -static void unmap(void); -static int map_vram(hd_data_t *hd_data); -static void unmap_vram(void); -static int copy_vbios(hd_data_t *hd_data); -// static int copy_sbios(void); -#if MAP_SYS_BIOS -static int copy_sys_bios(hd_data_t *hd_data); -#endif -static int copy_bios_ram(hd_data_t *hd_data); -static int setup_system_bios(hd_data_t *hd_data); -static void setup_int_vect(void); -static int chksum(CARD8 *start); -#define hd_read_mmap(UNUSED, NAME, BUF, START, SIZE) i10_read_mmap(NAME, BUF, START, SIZE) -static int i10_read_mmap(char *name, unsigned char *buf, off_t start, unsigned size); - -void loadCodeToMem(unsigned char *ptr, CARD8 *code); - -static int vram_mapped = 0; -static int int10inited = 0; - -static sigjmp_buf longjmp_buf; - -static void sigsegv_handler(int); - -int InitInt10(hd_data_t *hd_data) -{ - if(geteuid()) return -1; - - if(!map()) return -1; - - if(!setup_system_bios(hd_data)) { - unmap(); - return -1; - } - - setup_io(); - - if(iopl(3) < 0) { - unmap(); - return -1; - } - - iopl(0); - - setup_int_vect(); - - if(!copy_vbios(hd_data)) { - unmap(); - return -1; - } - - if(hd_data->flags.biosvram) map_vram(hd_data); - - if(!copy_bios_ram(hd_data)) { - unmap(); - return -1; - } - - if(!int10_bios_ok()) { - unmap(); - return -1; - } - - int10inited = 1; - - return 0; -} - - -void FreeInt10() -{ - if(!int10inited) return; - - unmap_vram(); - unmap(); - - int10inited = 0; -} - - -/* - * Check whether int 0x10 points to some useful code. - */ -int int10_bios_ok() -{ - unsigned cs, ip; - unsigned char *p; - - ip = ((uint16_t *) 0)[0x10 * 2]; - cs = ((uint16_t *) 0)[0x10 * 2 + 1]; - - p = (unsigned char *)(uintptr_t) ((cs << 4) + ip); - - log_err( - " vbe: int 10h points to %04x:%04x: %02x %02x %02x %02x %02x %02x %02x %02x\n", - cs, ip, - p[0], p[1], p[2], p[3], p[4], p[5], p[6], p[7] - ); - - /* It can't possibly start with all zeros. */ - if( !(p[0] || p[1] || p[2] || p[3]) ) { - log_err(" vbe: oops, int 10h points into nirvana!\n"); - - return 0; - } - - return 1; -} - - -void sigsegv_handler(int num) -{ - siglongjmp(longjmp_buf, num + 1000); -} - - -int CallInt10(int *ax, int *bx, int *cx, unsigned char *buf, int len, int cpuemu) -{ - i86biosRegs bRegs; - void (*old_sigsegv_handler)(int) = SIG_DFL; - void (*old_sigill_handler)(int) = SIG_DFL; - void (*old_sigtrap_handler)(int) = SIG_DFL; - int jmp; - - if(!int10inited) return -1; - memset(&bRegs, 0, sizeof bRegs); - bRegs.ax = *ax; - bRegs.bx = *bx; - bRegs.cx = *cx; - bRegs.dx = 0; - bRegs.es = 0x7e0; - bRegs.di = 0x0; - if(buf) memcpy((unsigned char *) 0x7e00, buf, len); - - iopl(3); - - jmp = sigsetjmp(longjmp_buf, 1); - - if(!jmp) { - old_sigsegv_handler = signal(SIGSEGV, sigsegv_handler); - old_sigill_handler = signal(SIGILL, sigsegv_handler); - old_sigtrap_handler = signal(SIGTRAP, sigsegv_handler); - - loadCodeToMem((unsigned char *) BIOS_START, code); - do_x86(BIOS_START, &bRegs, cpuemu); - } - else { - int10inited = 0; - log_err("oops: got signal %d in vm86() code\n", jmp - 1000); - } - - signal(SIGTRAP, old_sigtrap_handler); - signal(SIGILL, old_sigill_handler); - signal(SIGSEGV, old_sigsegv_handler); - - iopl(0); - - if(buf) memcpy(buf, (unsigned char *) 0x7e00, len); - - *ax = bRegs.ax; - *bx = bRegs.bx; - *cx = bRegs.cx; - - return bRegs.ax; -} - - -#if 0 -int CallInt13(int *ax, int *bx, int *cx, int *dx, unsigned char *buf, int len, int cpuemu) -{ - i86biosRegs bRegs; - - if(!int10inited) return -1; - memset(&bRegs, 0, sizeof bRegs); - bRegs.ax = *ax; - bRegs.bx = *bx; - bRegs.cx = *cx; - bRegs.dx = *dx; - bRegs.es = 0x7e0; - bRegs.ds = 0x7e0; - bRegs.di = 0x0; - bRegs.si = 0x0; - if(buf) memcpy((unsigned char *) 0x7e00, buf, len); - - iopl(3); - - loadCodeToMem((unsigned char *) BIOS_START, code13); - do_x86(BIOS_START, &bRegs, cpuemu); - - iopl(0); - - if(buf) memcpy(buf, (unsigned char *) 0x7e00, len); - - *ax = bRegs.ax; - *bx = bRegs.bx; - *cx = bRegs.cx; - *dx = bRegs.dx; - - return bRegs.ax; -} -#endif - - -int map() -{ - void* mem; - - mem = mmap(0, (size_t) SIZE, PROT_EXEC | PROT_READ | PROT_WRITE, MAP_FIXED | MAP_PRIVATE | MAP_ANON, -1, 0); - - if(mem) { - perror("anonymous map"); - return 0; - } - - memset(mem, 0, SIZE); - - loadCodeToMem((unsigned char *) BIOS_START, code); - - return 1; -} - - -void unmap() -{ - munmap(0, SIZE); -} - - -int map_vram(hd_data_t *hd_data) -{ - int mem_fd; - -#ifdef __ia64__ - if((mem_fd = open(MEM_FILE,O_RDWR | O_SYNC)) < 0) -#else - if((mem_fd = open(MEM_FILE,O_RDWR)) < 0) -#endif - { - log_err("map vram: open /dev/mem failed (%s)\n", strerror(errno)); - - return 0; - } - -#ifndef __alpha__ - if( - mmap( - (void *) VRAM_START, - (size_t) VRAM_SIZE, - PROT_EXEC | PROT_READ | PROT_WRITE, MAP_SHARED | MAP_FIXED, - mem_fd, - VRAM_START - ) == (void *) -1 - ) -#else - if(!_bus_base()) sparse_shift = 7; /* Uh, oh, JENSEN... */ - if(!_bus_base_sparse()) sparse_shift = 0; - - if( - (vram_map = mmap( - 0, - (size_t) (VRAM_SIZE << sparse_shift), - PROT_READ | PROT_WRITE, - MAP_SHARED, - mem_fd, - (VRAM_START << sparse_shift) | _bus_base_sparse() - )) == (void *) -1 - ) -#endif - { - log_err( - "/dev/mem[0x%x, %u]: mmap(, %u,,,, 0x%x) failed: %s\n", - (unsigned) VRAM_START, VRAM_SIZE, VRAM_SIZE, (unsigned) VRAM_START, strerror(errno) - ); - - close(mem_fd); - - return 0; - } - - log_err( - "/dev/mem[0x%x, %u]: mmap(, %u,,,, 0x%x) ok\n", - (unsigned) VRAM_START, VRAM_SIZE, VRAM_SIZE, (unsigned) VRAM_START - ); - - vram_mapped = 1; - - close(mem_fd); - - return 1; -} - - -void unmap_vram() -{ - if(!vram_mapped) return; - - munmap((void*) VRAM_START, VRAM_SIZE); - - vram_mapped = 0; -} - - -/* - * Read video BIOS from /dev/mem. - * - * Return: - * 0: failed - * 1: ok - */ -int copy_vbios(hd_data_t *hd_data) -{ - unsigned size; - unsigned char tmp[3]; - int i; - - if(!hd_read_mmap(hd_data, MEM_FILE, tmp, V_BIOS, sizeof tmp)) { - log_err("vbe: failed to read %u bytes at 0x%x\n", (unsigned) sizeof tmp, V_BIOS); - return 0; - } - - if(tmp[0] != 0x55 || tmp[1] != 0xAA ) { - log_err("vbe: no bios found at: 0x%x\n", V_BIOS); - return 0; - } - - size = tmp[2] * 0x200; - - if(!hd_read_mmap(hd_data, MEM_FILE, (unsigned char *) V_BIOS, V_BIOS, size)) { - log_err("vbe: failed to read %d bytes at 0x%x\n", size, V_BIOS); - return 0; - } - - if((i = chksum((CARD8 *) V_BIOS)) || !hd_data->flags.nobioscrc) return i; -#ifdef __i386__ - /* use cpu emulation for broken BIOSes */ - hd_data->flags.cpuemu |= 1; -#endif - - return 1; -} - - -#if MAP_SYS_BIOS -static int -copy_sys_bios(hd_data_t *hd_data) -{ - return hd_read_mmap(hd_data, MEM_FILE, (unsigned char *) 0xf0000, 0xf0000, 0xffff); -} -#endif - - -static int copy_bios_ram(hd_data_t *hd_data) -{ - return hd_read_mmap(hd_data, MEM_FILE, (unsigned char *) 0, 0, 0x1000); -} - -void loadCodeToMem(unsigned char *ptr, CARD8 *code) -{ - while((*ptr++ = *code++) != 0xf4 /* hlt */); - - return; -} - - -/* - * here we are really paranoid about faking a "real" - * BIOS. Most of this information was pulled from - * dosem. - */ -static void -setup_int_vect(void) -{ - const CARD16 cs = 0x0000; - const CARD16 ip = 0x0; - int i; - - /* let the int vects point to the SYS_BIOS seg */ - for (i=0; i<0x80; i++) { - ((CARD16*)0)[i<<1] = ip; - ((CARD16*)0)[(i<<1)+1] = cs; - } - /* video interrupts default location */ - ((CARD16*)0)[(0x42<<1)+1] = 0xf000; - ((CARD16*)0)[0x42<<1] = 0xf065; - ((CARD16*)0)[(0x10<<1)+1] = 0xf000; - ((CARD16*)0)[0x10<<1] = 0xf065; - /* video param table default location (int 1d) */ - ((CARD16*)0)[(0x1d<<1)+1] = 0xf000; - ((CARD16*)0)[0x1d<<1] = 0xf0A4; - /* font tables default location (int 1F) */ - ((CARD16*)0)[(0x1f<<1)+1] = 0xf000; - ((CARD16*)0)[0x1f<<1] = 0xfa6e; - - /* int 11 default location */ - ((CARD16*)0)[(0x11<1)+1] = 0xf000; - ((CARD16*)0)[0x11<<1] = 0xf84d; - /* int 12 default location */ - ((CARD16*)0)[(0x12<<1)+1] = 0xf000; - ((CARD16*)0)[0x12<<1] = 0xf841; - /* int 15 default location */ - ((CARD16*)0)[(0x15<<1)+1] = 0xf000; - ((CARD16*)0)[0x15<<1] = 0xf859; - /* int 1A default location */ - ((CARD16*)0)[(0x1a<<1)+1] = 0xf000; - ((CARD16*)0)[0x1a<<1] = 0xff6e; - /* int 05 default location */ - ((CARD16*)0)[(0x05<<1)+1] = 0xf000; - ((CARD16*)0)[0x05<<1] = 0xff54; - /* int 08 default location */ - ((CARD16*)0)[(0x8<<1)+1] = 0xf000; - ((CARD16*)0)[0x8<<1] = 0xfea5; - /* int 13 default location (fdd) */ - ((CARD16*)0)[(0x13<<1)+1] = 0xf000; - ((CARD16*)0)[0x13<<1] = 0xec59; - /* int 0E default location */ - ((CARD16*)0)[(0xe<<1)+1] = 0xf000; - ((CARD16*)0)[0xe<<1] = 0xef57; - /* int 17 default location */ - ((CARD16*)0)[(0x17<<1)+1] = 0xf000; - ((CARD16*)0)[0x17<<1] = 0xefd2; - /* fdd table default location (int 1e) */ - ((CARD16*)0)[(0x1e<<1)+1] = 0xf000; - ((CARD16*)0)[0x1e<<1] = 0xefc7; -} - -static int -setup_system_bios(hd_data_t *hd_data) -{ - char *date = "06/01/99"; - char *eisa_ident = "PCI/ISA"; - -#if MAP_SYS_BIOS - if (!copy_sys_bios(hd_data)) return 0; - return 1; -#endif -// memset((void *)0xF0000,0xf4,0xfff7); - - /* - * we trap the "industry standard entry points" to the BIOS - * and all other locations by filling them with "hlt" - * TODO: implement hlt-handler for these - */ - memset((void *)0xF0000,0xf4,0x10000); - - /* - * TODO: we should copy the fdd table (0xfec59-0xfec5b) - * the video parameter table (0xf0ac-0xf0fb) - * and the font tables (0xfa6e-0xfe6d) - * from the original bios here - */ - - /* set bios date */ - strcpy((char *)0xFFFF5,date); - /* set up eisa ident string */ - strcpy((char *)0xFFFD9,eisa_ident); - /* write system model id for IBM-AT */ - ((char *)0)[0xFFFFE] = 0xfc; - - return 1; -} - - -/* - * Check BIOS CRC. - * - * Return: - * 0: failed - * 1: ok - */ -int chksum(CARD8 *start) -{ - CARD16 size; - CARD8 val = 0; - int i; - - size = start[2] * 0x200; - for(i = 0; i < size; i++) val += start[i]; - - if(!val) return 1; - - log_err("vbe: BIOS chksum wrong\n"); - - return 0; -} - - -/* - * Read using mmap(). - */ -int i10_read_mmap(char *name, unsigned char *buf, off_t start, unsigned size) -{ - off_t map_start, xofs; - int psize = getpagesize(), fd; - unsigned map_size; - void *p; - struct stat sbuf; - - if(!size || !name) return 0; - - memset(buf, 0, size); - - map_start = start & -psize; - xofs = start - map_start; - - map_size = (xofs + size + psize - 1) & -psize; - - fd = open(name, O_RDONLY); - - if(fd == -1) return 0; - - if(!fstat(fd, &sbuf) && S_ISREG(sbuf.st_mode)) { - if(sbuf.st_size < start + size) { - if(sbuf.st_size > start) { - size = sbuf.st_size - start; - } - else { - size = 0; - } - } - } - - if(!size) { - close(fd); - return 0; - } - - p = mmap(NULL, map_size, PROT_READ, MAP_PRIVATE, fd, map_start); - - if(p == MAP_FAILED) { - log_err( - "%s[0x%x, %u]: mmap(, %u,,,, 0x%x) failed: %s\n", - name, (unsigned) start, size, map_size, (unsigned) map_start, strerror(errno) - ); - close(fd); - return 0; - } - if (0) log_err( - "%s[0x%x, %u]: mmap(, %u,,,, 0x%x) ok\n", - name, (unsigned) start, size, map_size, (unsigned) map_start - ); - - memcpy(buf, p + xofs, size); - - munmap(p, map_size); - - close(fd); - - return 1; -} diff --git a/int10/pci.h b/int10/pci.h deleted file mode 100644 index 840f9d4..0000000 --- a/int10/pci.h +++ /dev/null @@ -1,127 +0,0 @@ -/* - * Copyright 1999 Egbert Eich - * - * Permission to use, copy, modify, distribute, and sell this software and its - * documentation for any purpose is hereby granted without fee, provided that - * the above copyright notice appear in all copies and that both that - * copyright notice and this permission notice appear in supporting - * documentation, and that the name of the authors not be used in - * advertising or publicity pertaining to distribution of the software without - * specific, written prior permission. The authors makes no representations - * about the suitability of this software for any purpose. It is provided - * "as is" without express or implied warranty. - * - * THE AUTHORS DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, - * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO - * EVENT SHALL THE AUTHORS BE LIABLE FOR ANY SPECIAL, INDIRECT OR - * CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, - * DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER - * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR - * PERFORMANCE OF THIS SOFTWARE. - */ -#include "v86bios.h" - -#ifndef V86_PCI_H -#define V86_PCI_H - -typedef union { - struct { - unsigned int zero:2; - unsigned int reg:6; - unsigned int func:3; - unsigned int dev:5; - unsigned int bus:8; - unsigned int reserved:7; - unsigned int enable:1; - } pci; - CARD32 l; -} PciSlot; - -typedef struct pciBusRec { - CARD8 primary; - CARD8 secondary; - CARD32 bctl; - PciSlot Slot; - struct pciBusRec *next; - struct pciBusRec *pBus; -} PciBusRec, *PciBusPtr; - -typedef struct pciStructRec { - CARD16 VendorID; - CARD16 DeviceID; - CARD8 Interface; - CARD8 BaseClass; - CARD8 SubClass; - CARD32 RomBase; - CARD32 bus; - CARD8 dev; - CARD8 func; - CARD32 cmd_st; - int active; - PciSlot Slot; - struct pciStructRec *next; - PciBusPtr pBus; -} PciStructRec , *PciStructPtr; - - -extern PciStructPtr CurrentPci; -extern PciStructPtr PciList; -extern PciStructPtr BootBios; -extern int pciMaxBus; - -extern CARD32 findPci(CARD16 slotBX); -extern CARD16 pciSlotBX(PciStructPtr); -PciStructPtr findPciDevice(CARD16 vendorID, CARD16 deviceID, char n); -PciStructPtr findPciClass(CARD8 intf, CARD8 subClass, CARD16 class, char n); - -extern CARD8 PciRead8(int offset, CARD32 slot); -extern CARD16 PciRead16(int offset, CARD32 slot); -extern CARD32 PciRead32(int offset, CARD32 slot); - -extern void PciWrite8(int offset,CARD8 byte, CARD32 slot); -extern void PciWrite16(int offset,CARD16 word, CARD32 slot); -extern void PciWrite32(int offset,CARD32 lg, CARD32 slot); - -extern void scan_pci(int); -extern void pciVideoDisable(void); -extern void pciVideoRestore(void); -extern void EnableCurrent(void); -extern int mapPciRom(PciStructPtr pciP); -extern int cfg1out(CARD16 addr, CARD32 val); -extern int cfg1in(CARD16 addr, CARD32 *val); -extern void list_pci(void); -extern PciStructPtr findPciByIDs(int bus, int dev, int func); - -#define PCI_MODE2_ENABLE_REG 0xCF8 -#define PCI_MODE2_FORWARD_REG 0xCFA -#define PCI_MODE1_ADDRESS_REG 0xCF8 -#define PCI_MODE1_DATA_REG 0xCFC -#if defined(__alpha__) || defined(__sparc__) -#define PCI_EN 0x00000000 -#else -#define PCI_EN 0x80000000 -#endif -#define MAX_DEV_PER_VENDOR_CFG1 32 -#define BRIDGE_CLASS(x) (x == 0x06) -#define BRIDGE_PCI_CLASS(x) (x == 0x04) -#define BRIDGE_HOST_CLASS(x) (x == 0x00) -#define PCI_CLASS_PREHISTORIC 0x00 -#define PCI_SUBCLASS_PREHISTORIC_VGA 0x01 -#define PCI_CLASS_DISPLAY 0x03 -#define PCI_SUBCLASS_DISPLAY_VGA 0x00 -#define PCI_SUBCLASS_DISPLAY_XGA 0x01 -#define PCI_SUBCLASS_DISPLAY_MISC 0x80 -#define VIDEO_CLASS(b,s) \ - (((b) == PCI_CLASS_PREHISTORIC && (s) == PCI_SUBCLASS_PREHISTORIC_VGA) || \ - ((b) == PCI_CLASS_DISPLAY && (s) == PCI_SUBCLASS_DISPLAY_VGA) ||\ - ((b) == PCI_CLASS_DISPLAY && (s) == PCI_SUBCLASS_DISPLAY_XGA) ||\ - ((b) == PCI_CLASS_DISPLAY && (s) == PCI_SUBCLASS_DISPLAY_MISC)) -#define PCI_MULTIFUNC_DEV 0x80 -#define MAX_PCI_DEVICES 64 -#define PCI_MAXBUS 16 -#define PCI_IS_MEM 0x00000001 -#define MAX_PCI_ROM_SIZE (1024 * 1024 * 16) - -#define IS_MEM32(x) ((x & 0x7) == 0 && x != 0) -#define IS_MEM64(x) ((x & 0x7) == 0x4) -#endif diff --git a/int10/v86bios.h b/int10/v86bios.h deleted file mode 100644 index c0c8acc..0000000 --- a/int10/v86bios.h +++ /dev/null @@ -1,215 +0,0 @@ -/* - * Copyright 1999 Egbert Eich - * - * Permission to use, copy, modify, distribute, and sell this software and its - * documentation for any purpose is hereby granted without fee, provided that - * the above copyright notice appear in all copies and that both that - * copyright notice and this permission notice appear in supporting - * documentation, and that the name of the authors not be used in - * advertising or publicity pertaining to distribution of the software without - * specific, written prior permission. The authors makes no representations - * about the suitability of this software for any purpose. It is provided - * "as is" without express or implied warranty. - * - * THE AUTHORS DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, - * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO - * EVENT SHALL THE AUTHORS BE LIABLE FOR ANY SPECIAL, INDIRECT OR - * CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, - * DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER - * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR - * PERFORMANCE OF THIS SOFTWARE. - */ -#ifndef V86_BIOS_H -#define V86_BIOS_H - -#if defined (__i386__) || defined (__i486__) || defined (__i586__) || defined (__i686__) || defined (__k6__) -# ifndef __ia32__ -# define __ia32__ -# endif -#endif - -#include - -#define p_printf(f,a...) do {if (Config.PrintPort) lprintf(f,##a);} \ - while(0) -#define i_printf(f,a...) do {if (Config.PrintIrq) lprintf(f,##a);} \ - while(0) -#define P_printf(f,a...) do {if (Config.PrintPci) lprintf(f,##a);} \ - while(0) - -typedef unsigned char CARD8; -typedef unsigned short CARD16; -typedef unsigned int CARD32; -#if defined (__alpha__) || defined (__ia64__) -typedef unsigned long memType; -#else -typedef unsigned int memType; -#endif - -typedef int Bool; - -#define FALSE 0 -#define TRUE 1 - -struct config { - Bool PrintPort; - Bool IoStatistics; - Bool PrintIrq; - Bool PrintPci; - Bool ShowAllDev; - Bool PrintIp; - Bool SaveBios; - Bool Trace; - Bool ConfigActiveOnly; - Bool ConfigActiveDevice; - Bool MapSysBios; - Bool Resort; - Bool FixRom; - Bool NoConsole; - Bool BootOnly; - int Verbose; -}; - -struct pio { - CARD8 (*inb)(CARD16); - CARD16 (*inw)(CARD16); - CARD32 (*inl)(CARD16); - void (*outb)(CARD16,CARD8); - void (*outw)(CARD16,CARD16); - void (*outl)(CARD16,CARD32); -}; - -struct regs86 { - long ebx; - long ecx; - long edx; - long esi; - long edi; - long ebp; - long eax; - long eip; - long esp; - unsigned short cs; - unsigned short ss; - unsigned short es; - unsigned short ds; - unsigned short fs; - unsigned short gs; - long eflags; -}; - -typedef struct { - CARD32 ax; - CARD32 bx; - CARD32 cx; - CARD32 dx; - CARD32 cs; - CARD32 es; - CARD32 ds; - CARD32 si; - CARD32 di; -} i86biosRegs, *i86biosRegsPtr; - -typedef struct { - int fd; - int vt; -} console; - -typedef struct { - void* address; - CARD8 orgval; -} haltpoints; - -enum dev_type { NONE, ISA, PCI }; -struct device { - Bool booted; - enum dev_type type; - union { - int none; - struct pci { - int bus; - int dev; - int func; - } pci; - } loc; -}; - -extern struct device Device; - -#ifdef __alpha__ -unsigned long _bus_base(void); -extern void* vram_map; -extern int sparse_shift; -#endif - -extern struct pio P; -extern struct config Config; -#define IOPERM_BITS 1024 -extern int ioperm_list[IOPERM_BITS]; - -extern void setup_io(void); -extern void do_x86(unsigned long bios_start,i86biosRegsPtr regs, int cpuemu); -extern int run_bios_int(int num, struct regs86 *regs); -extern CARD32 getIntVect(int num); -CARD32 getIP(void); - -extern void call_boot(struct device *dev); -extern void runINT(int num,i86biosRegsPtr Regs); -extern void add_hlt(unsigned long addr); -extern void del_hlt(int addr); -extern void list_hlt(); - -extern int port_rep_inb(CARD16 port, CARD8 *base, int d_f, CARD32 count); -extern int port_rep_inw(CARD16 port, CARD16 *base, int d_f, CARD32 count); -extern int port_rep_inl(CARD16 port, CARD32 *base, int d_f, CARD32 count); -extern int port_rep_outb(CARD16 port, CARD8 *base, int d_f, CARD32 count); -extern int port_rep_outw(CARD16 port, CARD16 *base, int d_f, CARD32 count); -extern int port_rep_outl(CARD16 port, CARD32 *base, int d_f, CARD32 count); -extern CARD8 p_inb(CARD16 port); -extern CARD16 p_inw(CARD16 port); -extern CARD32 p_inl(CARD16 port); -extern void p_outb(CARD16 port, CARD8 val); -extern void p_outw(CARD16 port, CARD16 val); -extern void p_outl(CARD16 port, CARD32 val); -#ifdef __alpha__ -extern CARD8 a_inb(CARD16 port); -extern CARD16 a_inw(CARD16 port); -extern void a_outb(CARD16 port, CARD8 val); -extern void a_outw(CARD16 port, CARD16 val); -#endif -#ifdef __alpha__ -CARD8 mem_rb(CARD32 addr); -CARD16 mem_rw(CARD32 addr); -CARD32 mem_rl(CARD32 addr); -void mem_wb(CARD32 addr, CARD8 val); -void mem_ww(CARD32 addr, CARD16 val); -void mem_wl(CARD32 addr, CARD32 val); -#endif -extern void io_statistics(void); -extern void clear_stat(void); -extern int int_handler(int num, struct regs86 *regs); - -extern console open_console(void); -extern void close_console(console); - -extern void dprint(unsigned long start, unsigned long size); - -extern Bool logging; -extern Bool nostdout; -extern char* logfile; -extern void logon(void* ptr); -extern void logoff(); -extern void lprintf(const char *f, ...); - -#define MEM_FILE "/dev/mem" -#define DEFAULT_V_BIOS 0xc0000 -#ifndef V_BIOS -#define V_BIOS DEFAULT_V_BIOS -#endif - -#ifdef __alpha__ -#define NEED_PCI_IO -#endif - -#endif - diff --git a/int10/vbios.h b/int10/vbios.h deleted file mode 100644 index 1777e01..0000000 --- a/int10/vbios.h +++ /dev/null @@ -1,6 +0,0 @@ -#include "hd.h" - -int InitInt10(hd_data_t *); -int CallInt10(int *ax, int *bx, int *cx, unsigned char *buf, int len, int cpuemu); -int CallInt13(int *ax, int *bx, int *cx, int *dx, unsigned char *buf, int len, int cpuemu); -void FreeInt10(void); diff --git a/int10/vm86_struct.h b/int10/vm86_struct.h deleted file mode 100644 index 772e6ca..0000000 --- a/int10/vm86_struct.h +++ /dev/null @@ -1,135 +0,0 @@ -#ifndef _LINUX_VM86_H -#define _LINUX_VM86_H - -/* - * I'm guessing at the VIF/VIP flag usage, but hope that this is how - * the Pentium uses them. Linux will return from vm86 mode when both - * VIF and VIP is set. - * - * On a Pentium, we could probably optimize the virtual flags directly - * in the eflags register instead of doing it "by hand" in vflags... - * - * Linus - */ - -#define TF_MASK 0x00000100 -#define IF_MASK 0x00000200 -#define IOPL_MASK 0x00003000 -#define NT_MASK 0x00004000 -#define VM_MASK 0x00020000 -#define AC_MASK 0x00040000 -#define VIF_MASK 0x00080000 /* virtual interrupt flag */ -#define VIP_MASK 0x00100000 /* virtual interrupt pending */ -#define ID_MASK 0x00200000 - -#define BIOSSEG 0x0f000 - -#define CPU_086 0 -#define CPU_186 1 -#define CPU_286 2 -#define CPU_386 3 -#define CPU_486 4 -#define CPU_586 5 - -/* - * Return values for the 'vm86()' system call - */ -#define VM86_TYPE(retval) ((retval) & 0xff) -#define VM86_ARG(retval) ((retval) >> 8) - -#define VM86_SIGNAL 0 /* return due to signal */ -#define VM86_UNKNOWN 1 /* unhandled GP fault - IO-instruction or similar */ -#define VM86_INTx 2 /* int3/int x instruction (ARG = x) */ -#define VM86_STI 3 /* sti/popf/iret instruction enabled virtual interrupts */ - -/* - * Additional return values when invoking new vm86() - */ -#define VM86_PICRETURN 4 /* return due to pending PIC request */ -#define VM86_TRAP 6 /* return due to DOS-debugger request */ - -/* - * function codes when invoking new vm86() - */ -#define VM86_PLUS_INSTALL_CHECK 0 -#define VM86_ENTER 1 -#define VM86_ENTER_NO_BYPASS 2 -#define VM86_REQUEST_IRQ 3 -#define VM86_FREE_IRQ 4 -#define VM86_GET_IRQ_BITS 5 -#define VM86_GET_AND_RESET_IRQ 6 - -/* - * This is the stack-layout seen by the user space program when we have - * done a translation of "SAVE_ALL" from vm86 mode. The real kernel layout - * is 'kernel_vm86_regs' (see below). - */ - -struct vm86_regs { -/* - * normal regs, with special meaning for the segment descriptors.. - */ - long ebx; - long ecx; - long edx; - long esi; - long edi; - long ebp; - long eax; - long __null_ds; - long __null_es; - long __null_fs; - long __null_gs; - long orig_eax; - long eip; - unsigned short cs, __csh; - long eflags; - long esp; - unsigned short ss, __ssh; -/* - * these are specific to v86 mode: - */ - unsigned short es, __esh; - unsigned short ds, __dsh; - unsigned short fs, __fsh; - unsigned short gs, __gsh; -}; - -struct revectored_struct { - unsigned long __map[8]; /* 256 bits */ -}; - -struct vm86_struct { - struct vm86_regs regs; - unsigned long flags; - unsigned long screen_bitmap; - unsigned long cpu_type; - struct revectored_struct int_revectored; - struct revectored_struct int21_revectored; -}; - -/* - * flags masks - */ -#define VM86_SCREEN_BITMAP 0x0001 - -struct vm86plus_info_struct { - unsigned long force_return_for_pic:1; - unsigned long vm86dbg_active:1; /* for debugger */ - unsigned long vm86dbg_TFpendig:1; /* for debugger */ - unsigned long unused:28; - unsigned long is_vm86pus:1; /* for vm86 internal use */ - unsigned char vm86dbg_intxxtab[32]; /* for debugger */ -}; - -struct vm86plus_struct { - struct vm86_regs regs; - unsigned long flags; - unsigned long screen_bitmap; - unsigned long cpu_type; - struct revectored_struct int_revectored; - struct revectored_struct int21_revectored; - struct vm86plus_info_struct vm86plus; -}; - -#endif diff --git a/monitor-get-edid-using-vbe.c b/monitor-get-edid-using-vbe.c index c4f2c08..1bf0759 100644 --- a/monitor-get-edid-using-vbe.c +++ b/monitor-get-edid-using-vbe.c @@ -10,7 +10,6 @@ #include #include #include "get-edid.h" -#include "hd.h" int verbose = 0; @@ -21,32 +20,19 @@ int main(int argc, char **argv) int port = 0; int i; - /* Hardware Data defaults */ - hd_data_t hd_data; - hd_data.flags.biosvram = 0; /* don't map video BIOS RAM */ - hd_data.flags.nobioscrc = 1; /* don't check VBIOS CRC */ - hd_data.flags.cpuemu = 1; /* use CPU emulator everywhere... */ -#ifdef __i386__ - hd_data.flags.cpuemu = 0; /* ... but ia32, unless VBIOS CRC is invalid */ -#endif - for (i = 1; i < argc; i++) { const char *arg = argv[i]; if (strcmp(arg, "-v") == 0) verbose = 1; else if (strcmp(arg, "--port") == 0 && i+1 < argc) port = atoi(argv[++i]); else if (strcmp(arg, "--try-in-console") == 0) try_in_console = 1; - else if (strcmp(arg, "--map-bios-vram") == 0) hd_data.flags.biosvram = 1; - else if (strcmp(arg, "--check-bios-crc") == 0) hd_data.flags.nobioscrc = 0; - else if (strcmp(arg, "--use-cpuemu") == 0) hd_data.flags.cpuemu = 1; else if (strcmp(arg, "-h") == 0 || strcmp(arg, "--help") == 0) { - printf("usage: monitor-get-edid [-v] [--port <0-3>] [--try-in-console]\n" - " [--map-bios-vram] [--check-bios-crc] [--use-cpuemu]\n"); + printf("usage: monitor-get-edid [-v] [--port <0-3>] [--try-in-console]\n"); exit(1); } } - int size = get_edid(&hd_data, edid, port); + int size = get_edid(edid, port); if (!size && try_in_console) { int non_X_console = 1; @@ -59,7 +45,7 @@ int main(int argc, char **argv) ioctl(fd, VT_ACTIVATE, non_X_console) == 0 && ioctl(fd, VT_WAITACTIVE, non_X_console) == 0) { /* retrying */ - size = get_edid(&hd_data, edid, port); + size = get_edid(edid, port); /* restore */ ioctl(fd, VT_ACTIVATE, current.v_active) == 0 && diff --git a/vbe.c b/vbe.c index ff02e03..0aeadf9 100644 --- a/vbe.c +++ b/vbe.c @@ -6,26 +6,18 @@ #include #include #include +#include #include #include #include #include #include #include +#include #include "get-edid.h" -#include "int10/vbios.h" - -#ifdef __i386__ -/* some regressions can occur. e.g. Shuttle S754 with built-in VIA VGA, - in that case default to previous lrmi code */ -#define LRMI -#endif - -#include int box_is_xbox(); -/* also used by libint10 */ void log_err(char *format, ...) { if (verbose) { @@ -112,29 +104,6 @@ static void parse_vbe_info(unsigned char *v) log_err("Product revision: %s\n", get_str(tmp, sizeof tmp, v + 0x1e)); } -static int vbe_check_vbe_info(hd_data_t *hd_data) -{ - int i; - unsigned char v[0x200]; - int ax, bx, cx; - - /* Setup registers for the interrupt call */ - ax = 0x4f00; - bx = 0; - cx = 0; - memset(v, 0, sizeof(v)); - strcpy(v, "VBE2"); - - /* Get VBE block */ - i = CallInt10(&ax, &bx, &cx, v, sizeof(v), hd_data->flags.cpuemu) & 0xffff; - if (i != 0x4f) { - log_err("VBE: Error (0x4f00): 0x%04x\n", i); - return 0; - } - parse_vbe_info(v); - return 1; -} - static void parse_ddc_info(int port, int info) { log_err("Port %d:\n", port); @@ -144,58 +113,7 @@ static void parse_ddc_info(int port, int info) log_err(" Time to transfer one EDID block: %d sec (rounded up)\n", (info & 0xff00) >> 8); } -static int vbe_check_ddc_capabilities(hd_data_t *hd_data, int port) -{ - int i; - int ax, bx, cx; - - /* Setup registers for the interrupt call */ - ax = 0x4f15; - bx = 0; /* Report DDC Capabilities */ - cx = port; - - /* Get capabilities */ - i = CallInt10(&ax, &bx, &cx, NULL, 0, hd_data->flags.cpuemu) & 0xffff; - if (i != 0x4f) { - log_err("DDC: Error (0x4f15:00): 0x%04x\n", i); - return 0; - } - - parse_ddc_info(port, bx); - - if (!(bx & 3)) { - log_err("DDC (0x4f15:00): DDC not supported, not continuing\n", i); - return 0; - } - - return 1; -} - -/* Get EDID info. */ -int vbe_get_edid_info(hd_data_t *hd_data, char *edid, int port) -{ - int i; - int ax, bx, cx; - - /* Setup registers for the interrupt call */ - ax = 0x4f15; - bx = 1; - cx = port; - - /* Get EDID block */ - i = CallInt10(&ax, &bx, &cx, edid, 256, hd_data->flags.cpuemu) & 0xffff; - if (i != 0x4f) { - log_err("EDID: Error (0x4f15:01): 0x%04x\n", i); - return 0; - } - - return 1; -} - -#ifdef LRMI -#include - -static int vbe_check_vbe_info__old(void) +static int vbe_check_vbe_info(void) { int i; unsigned char *mem; @@ -247,14 +165,14 @@ static int vbe_check_vbe_info__old(void) return 1; } -static int vbe_check_ddc_capabilities__old(int port) +static int vbe_check_ddc_capabilities(int port) { int i; struct LRMI_regs regs; /* initialize LRMI */ if (LRMI_init() == 0) { - log_err("EDID: could not initialize LRMI\n"); + log_err("DDC: could not initialize LRMI\n"); return 0; } @@ -290,7 +208,7 @@ static int vbe_check_ddc_capabilities__old(int port) return 1; } -static int vbe_get_edid_info__old(char *edid, int port) +static int vbe_get_edid_info(char *edid, int port) { int i; unsigned char *mem; @@ -341,21 +259,7 @@ static int vbe_get_edid_info__old(char *edid, int port) return 1; } -int get_edid__old(char *edid, int port) -{ - int ok; - /* try with older lrmi interface, we can assume a failure for - one is also bogus for the other */ - log_err("Retrying with old LRMI interface\n"); - ok = - (box_is_xbox() || (vbe_check_vbe_info__old() && - vbe_check_ddc_capabilities__old(port))) && - vbe_get_edid_info__old(edid, port); - return ok; -} -#endif - -int get_edid(hd_data_t *hd_data, char *edid, int port) +int get_edid(char *edid, int port) { int ok = 0; @@ -364,19 +268,10 @@ int get_edid(hd_data_t *hd_data, char *edid, int port) return 0; } - if (!box_is_xbox()) { - if (InitInt10(hd_data) == 0) { - ok = vbe_check_vbe_info(hd_data) - && vbe_check_ddc_capabilities(hd_data, port) - && vbe_get_edid_info(hd_data, edid, port); - FreeInt10(); - } - } - -#ifdef LRMI - if (!ok) - ok = get_edid__old(edid, port); -#endif + ok = + (box_is_xbox() || (vbe_check_vbe_info() && + vbe_check_ddc_capabilities(port))) && + vbe_get_edid_info(edid, port); return ok ? 128 : 0; } diff --git a/x86emu/Makefile b/x86emu/Makefile deleted file mode 100644 index afebf97..0000000 --- a/x86emu/Makefile +++ /dev/null @@ -1,61 +0,0 @@ -############################################################################# -# -# Realmode X86 Emulator Library -# -# Copyright (C) 1996-1999 SciTech Software, Inc. -# -# ======================================================================== -# -# Permission to use, copy, modify, distribute, and sell this software and -# its documentation for any purpose is hereby granted without fee, -# provided that the above copyright notice appear in all copies and that -# both that copyright notice and this permission notice appear in -# supporting documentation, and that the name of the authors not be used -# in advertising or publicity pertaining to distribution of the software -# without specific, written prior permission. The authors makes no -# representations about the suitability of this software for any purpose. -# It is provided "as is" without express or implied warranty. -# -# THE AUTHORS DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, -# INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO -# EVENT SHALL THE AUTHORS BE LIABLE FOR ANY SPECIAL, INDIRECT OR -# CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF -# USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR -# OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR -# PERFORMANCE OF THIS SOFTWARE. -# -# ======================================================================== -# -# Descripton: Linux specific makefile for the x86emu library. -# -############################################################################# - -CC = gcc -TARGETLIB = ../libx86emu.a - -OBJS=\ -debug.o \ -decode.o \ -fpu.o \ -ops.o \ -ops2.o \ -prim_ops.o \ -sys.o - -all: $(TARGETLIB) - -$(TARGETLIB): $(OBJS) -# prefix objects with x86emu_ - @for i in $? ; do cp -p $$i x86emu_$$i ; ar rv $@ x86emu_$$i || exit ; rm -f x86emu_$$i ; done - -INCS = -I. -Ix86emu - -%.o: %.c - $(CC) $(CFLAGS) $(INCS) -c $< -o $@ - -clean: - @rm -f $(TARGETLIB) - @rm -f $(OBJS) validate.o - -validate: validate.o ../libx86emu.a - $(CC) -o $@ $< -lx86emu -L.. diff --git a/x86emu/debug.c b/x86emu/debug.c deleted file mode 100644 index 5eda908..0000000 --- a/x86emu/debug.c +++ /dev/null @@ -1,430 +0,0 @@ -/**************************************************************************** -* -* Realmode X86 Emulator Library -* -* Copyright (C) 1996-1999 SciTech Software, Inc. -* Copyright (C) David Mosberger-Tang -* Copyright (C) 1999 Egbert Eich -* -* ======================================================================== -* -* Permission to use, copy, modify, distribute, and sell this software and -* its documentation for any purpose is hereby granted without fee, -* provided that the above copyright notice appear in all copies and that -* both that copyright notice and this permission notice appear in -* supporting documentation, and that the name of the authors not be used -* in advertising or publicity pertaining to distribution of the software -* without specific, written prior permission. The authors makes no -* representations about the suitability of this software for any purpose. -* It is provided "as is" without express or implied warranty. -* -* THE AUTHORS DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, -* INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO -* EVENT SHALL THE AUTHORS BE LIABLE FOR ANY SPECIAL, INDIRECT OR -* CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF -* USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR -* OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR -* PERFORMANCE OF THIS SOFTWARE. -* -* ======================================================================== -* -* Language: ANSI C -* Environment: Any -* Developer: Kendall Bennett -* -* Description: This file contains the code to handle debugging of the -* emulator. -* -****************************************************************************/ - -#include "x86emu/x86emui.h" -#include -#include -#ifndef NO_SYS_HEADERS -#include -#include -#endif - -/*----------------------------- Implementation ----------------------------*/ - -#ifdef DEBUG - -static void print_encoded_bytes (u16 s, u16 o); -static void print_decoded_instruction (void); -static int parse_line (char *s, int *ps, int *n); - -/* should look something like debug's output. */ -void X86EMU_trace_regs (void) -{ - if (DEBUG_TRACE()) { - x86emu_dump_regs(); - } - if (DEBUG_DECODE() && ! DEBUG_DECODE_NOPRINT()) { - printk("%04x:%04x ",M.x86.saved_cs, M.x86.saved_ip); - print_encoded_bytes( M.x86.saved_cs, M.x86.saved_ip); - print_decoded_instruction(); - } -} - -void X86EMU_trace_xregs (void) -{ - if (DEBUG_TRACE()) { - x86emu_dump_xregs(); - } -} - -void x86emu_just_disassemble (void) -{ - /* - * This routine called if the flag DEBUG_DISASSEMBLE is set kind - * of a hack! - */ - printk("%04x:%04x ",M.x86.saved_cs, M.x86.saved_ip); - print_encoded_bytes( M.x86.saved_cs, M.x86.saved_ip); - print_decoded_instruction(); -} - -static void disassemble_forward (u16 seg, u16 off, int n) -{ - X86EMU_sysEnv tregs; - int i; - u8 op1; - /* - * hack, hack, hack. What we do is use the exact machinery set up - * for execution, except that now there is an additional state - * flag associated with the "execution", and we are using a copy - * of the register struct. All the major opcodes, once fully - * decoded, have the following two steps: TRACE_REGS(r,m); - * SINGLE_STEP(r,m); which disappear if DEBUG is not defined to - * the preprocessor. The TRACE_REGS macro expands to: - * - * if (debug&DEBUG_DISASSEMBLE) - * {just_disassemble(); goto EndOfInstruction;} - * if (debug&DEBUG_TRACE) trace_regs(r,m); - * - * ...... and at the last line of the routine. - * - * EndOfInstruction: end_instr(); - * - * Up to the point where TRACE_REG is expanded, NO modifications - * are done to any register EXCEPT the IP register, for fetch and - * decoding purposes. - * - * This was done for an entirely different reason, but makes a - * nice way to get the system to help debug codes. - */ - tregs = M; - tregs.x86.R_IP = off; - tregs.x86.R_CS = seg; - - /* reset the decoding buffers */ - tregs.x86.enc_str_pos = 0; - tregs.x86.enc_pos = 0; - - /* turn on the "disassemble only, no execute" flag */ - tregs.x86.debug |= DEBUG_DISASSEMBLE_F; - - /* DUMP NEXT n instructions to screen in straight_line fashion */ - /* - * This looks like the regular instruction fetch stream, except - * that when this occurs, each fetched opcode, upon seeing the - * DEBUG_DISASSEMBLE flag set, exits immediately after decoding - * the instruction. XXX --- CHECK THAT MEM IS NOT AFFECTED!!! - * Note the use of a copy of the register structure... - */ - for (i=0; i 256) return; - seg = fetch_data_word_abs(0,iv*4); - off = fetch_data_word_abs(0,iv*4+2); - printk("%04x:%04x ", seg, off); -} - -void X86EMU_dump_memory (u16 seg, u16 off, u32 amt) -{ - u32 start = off & 0xfffffff0; - u32 end = (off+16) & 0xfffffff0; - u32 i; - u32 current; - - current = start; - while (end <= off + amt) { - printk("%04x:%04x ", seg, start); - for (i=start; i< off; i++) - printk(" "); - for ( ; i< end; i++) - printk("%02x ", fetch_data_byte_abs(seg,i)); - printk("\n"); - start = end; - end = start + 16; - } -} - -void x86emu_single_step (void) -{ - char s[1024]; - int ps[10]; - int ntok; - int cmd; - int done; - int segment; - int offset; - static int breakpoint; - static int noDecode = 1; - - char *p; - - if (DEBUG_BREAK()) { - if (M.x86.saved_ip != breakpoint) { - return; - } else { - M.x86.debug &= ~DEBUG_DECODE_NOPRINT_F; - M.x86.debug |= DEBUG_TRACE_F; - M.x86.debug &= ~DEBUG_BREAK_F; - print_decoded_instruction (); - X86EMU_trace_regs(); - } - } - done=0; - offset = M.x86.saved_ip; - while (!done) { - printk("-"); - p = fgets(s, 1023, stdin); - cmd = parse_line(s, ps, &ntok); - switch(cmd) { - case 'u': - disassemble_forward(M.x86.saved_cs,(u16)offset,10); - break; - case 'd': - if (ntok == 2) { - segment = M.x86.saved_cs; - offset = ps[1]; - X86EMU_dump_memory(segment,(u16)offset,16); - offset += 16; - } else if (ntok == 3) { - segment = ps[1]; - offset = ps[2]; - X86EMU_dump_memory(segment,(u16)offset,16); - offset += 16; - } else { - segment = M.x86.saved_cs; - X86EMU_dump_memory(segment,(u16)offset,16); - offset += 16; - } - break; - case 'c': - M.x86.debug ^= DEBUG_TRACECALL_F; - break; - case 's': - M.x86.debug ^= DEBUG_SVC_F | DEBUG_SYS_F | DEBUG_SYSINT_F; - break; - case 'r': - X86EMU_trace_regs(); - break; - case 'x': - X86EMU_trace_xregs(); - break; - case 'g': - if (ntok == 2) { - breakpoint = ps[1]; - if (noDecode) { - M.x86.debug |= DEBUG_DECODE_NOPRINT_F; - } else { - M.x86.debug &= ~DEBUG_DECODE_NOPRINT_F; - } - M.x86.debug &= ~DEBUG_TRACE_F; - M.x86.debug |= DEBUG_BREAK_F; - done = 1; - } - break; - case 'q': - M.x86.debug |= DEBUG_EXIT; - return; - case 'P': - noDecode = (noDecode)?0:1; - printk("Toggled decoding to %s\n",(noDecode)?"FALSE":"TRUE"); - break; - case 't': - case 0: - done = 1; - break; - } - } -} - -int X86EMU_trace_on(void) -{ - return M.x86.debug |= DEBUG_STEP_F | DEBUG_DECODE_F | DEBUG_TRACE_F; -} - -int X86EMU_trace_off(void) -{ - return M.x86.debug &= ~(DEBUG_STEP_F | DEBUG_DECODE_F | DEBUG_TRACE_F); -} - -static int parse_line (char *s, int *ps, int *n) -{ - int cmd; - - *n = 0; - while(*s == ' ' || *s == '\t') s++; - ps[*n] = *s; - switch (*s) { - case '\n': - *n += 1; - return 0; - default: - cmd = *s; - *n += 1; - } - - while (1) { - while (*s != ' ' && *s != '\t' && *s != '\n') s++; - - if (*s == '\n') - return cmd; - - while(*s == ' ' || *s == '\t') s++; - - sscanf(s,"%x",&ps[*n]); - *n += 1; - } -} - -#endif /* DEBUG */ - -void x86emu_dump_regs (void) -{ - printk("\tAX=%04x ", M.x86.R_AX ); - printk("BX=%04x ", M.x86.R_BX ); - printk("CX=%04x ", M.x86.R_CX ); - printk("DX=%04x ", M.x86.R_DX ); - printk("SP=%04x ", M.x86.R_SP ); - printk("BP=%04x ", M.x86.R_BP ); - printk("SI=%04x ", M.x86.R_SI ); - printk("DI=%04x\n", M.x86.R_DI ); - printk("\tDS=%04x ", M.x86.R_DS ); - printk("ES=%04x ", M.x86.R_ES ); - printk("SS=%04x ", M.x86.R_SS ); - printk("CS=%04x ", M.x86.R_CS ); - printk("IP=%04x ", M.x86.R_IP ); - if (ACCESS_FLAG(F_OF)) printk("OV "); /* CHECKED... */ - else printk("NV "); - if (ACCESS_FLAG(F_DF)) printk("DN "); - else printk("UP "); - if (ACCESS_FLAG(F_IF)) printk("EI "); - else printk("DI "); - if (ACCESS_FLAG(F_SF)) printk("NG "); - else printk("PL "); - if (ACCESS_FLAG(F_ZF)) printk("ZR "); - else printk("NZ "); - if (ACCESS_FLAG(F_AF)) printk("AC "); - else printk("NA "); - if (ACCESS_FLAG(F_PF)) printk("PE "); - else printk("PO "); - if (ACCESS_FLAG(F_CF)) printk("CY "); - else printk("NC "); - printk("\n"); -} - -void x86emu_dump_xregs (void) -{ - printk("\tEAX=%08x ", M.x86.R_EAX ); - printk("EBX=%08x ", M.x86.R_EBX ); - printk("ECX=%08x ", M.x86.R_ECX ); - printk("EDX=%08x \n", M.x86.R_EDX ); - printk("\tESP=%08x ", M.x86.R_ESP ); - printk("EBP=%08x ", M.x86.R_EBP ); - printk("ESI=%08x ", M.x86.R_ESI ); - printk("EDI=%08x\n", M.x86.R_EDI ); - printk("\tDS=%04x ", M.x86.R_DS ); - printk("ES=%04x ", M.x86.R_ES ); - printk("SS=%04x ", M.x86.R_SS ); - printk("CS=%04x ", M.x86.R_CS ); - printk("EIP=%08x\n\t", M.x86.R_EIP ); - if (ACCESS_FLAG(F_OF)) printk("OV "); /* CHECKED... */ - else printk("NV "); - if (ACCESS_FLAG(F_DF)) printk("DN "); - else printk("UP "); - if (ACCESS_FLAG(F_IF)) printk("EI "); - else printk("DI "); - if (ACCESS_FLAG(F_SF)) printk("NG "); - else printk("PL "); - if (ACCESS_FLAG(F_ZF)) printk("ZR "); - else printk("NZ "); - if (ACCESS_FLAG(F_AF)) printk("AC "); - else printk("NA "); - if (ACCESS_FLAG(F_PF)) printk("PE "); - else printk("PO "); - if (ACCESS_FLAG(F_CF)) printk("CY "); - else printk("NC "); - printk("\n"); -} diff --git a/x86emu/decode.c b/x86emu/decode.c deleted file mode 100644 index 9339f4c..0000000 --- a/x86emu/decode.c +++ /dev/null @@ -1,1092 +0,0 @@ -/**************************************************************************** -* -* Realmode X86 Emulator Library -* -* Copyright (C) 1996-1999 SciTech Software, Inc. -* Copyright (C) David Mosberger-Tang -* Copyright (C) 1999 Egbert Eich -* -* ======================================================================== -* -* Permission to use, copy, modify, distribute, and sell this software and -* its documentation for any purpose is hereby granted without fee, -* provided that the above copyright notice appear in all copies and that -* both that copyright notice and this permission notice appear in -* supporting documentation, and that the name of the authors not be used -* in advertising or publicity pertaining to distribution of the software -* without specific, written prior permission. The authors makes no -* representations about the suitability of this software for any purpose. -* It is provided "as is" without express or implied warranty. -* -* THE AUTHORS DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, -* INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO -* EVENT SHALL THE AUTHORS BE LIABLE FOR ANY SPECIAL, INDIRECT OR -* CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF -* USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR -* OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR -* PERFORMANCE OF THIS SOFTWARE. -* -* ======================================================================== -* -* Language: ANSI C -* Environment: Any -* Developer: Kendall Bennett -* -* Description: This file includes subroutines which are related to -* instruction decoding and accessess of immediate data via IP. etc. -* -****************************************************************************/ - -#include -#include "x86emu/x86emui.h" - -/*----------------------------- Implementation ----------------------------*/ - -/**************************************************************************** -REMARKS: -Handles any pending asychronous interrupts. -****************************************************************************/ -static void x86emu_intr_handle(void) -{ - u8 intno; - - if (M.x86.intr & INTR_SYNCH) { - intno = M.x86.intno; - if (_X86EMU_intrTab[intno]) { - (*_X86EMU_intrTab[intno])(intno); - } else { - push_word((u16)M.x86.R_FLG); - CLEAR_FLAG(F_IF); - CLEAR_FLAG(F_TF); - push_word(M.x86.R_CS); - M.x86.R_CS = mem_access_word(intno * 4 + 2); - push_word(M.x86.R_IP); - M.x86.R_IP = mem_access_word(intno * 4); - M.x86.intr = 0; - } - } -} - -/**************************************************************************** -PARAMETERS: -intrnum - Interrupt number to raise - -REMARKS: -Raise the specified interrupt to be handled before the execution of the -next instruction. -****************************************************************************/ -void x86emu_intr_raise( - u8 intrnum) -{ - M.x86.intno = intrnum; - M.x86.intr |= INTR_SYNCH; -} - -/**************************************************************************** -REMARKS: -Main execution loop for the emulator. We return from here when the system -halts, which is normally caused by a stack fault when we return from the -original real mode call. -****************************************************************************/ -void X86EMU_exec(void) -{ - u8 op1; - - M.x86.intr = 0; - DB(x86emu_end_instr();) - - for (;;) { -DB( if (CHECK_IP_FETCH()) - x86emu_check_ip_access();) - /* If debugging, save the IP and CS values. */ - SAVE_IP_CS(M.x86.R_CS, M.x86.R_IP); - INC_DECODED_INST_LEN(1); - if (M.x86.intr) { - if (M.x86.intr & INTR_HALTED) { -DB( if (M.x86.R_SP != 0) { - printk("halted\n"); - X86EMU_trace_regs(); - } - else { - if (M.x86.debug) - printk("Service completed successfully\n"); - }) - return; - } - if (((M.x86.intr & INTR_SYNCH) && (M.x86.intno == 0 || M.x86.intno == 2)) || - !ACCESS_FLAG(F_IF)) { - x86emu_intr_handle(); - } - } - op1 = (*sys_rdb)(((u32)M.x86.R_CS << 4) + (M.x86.R_IP++)); - (*x86emu_optab[op1])(op1); - if (M.x86.debug & DEBUG_EXIT) { - M.x86.debug &= ~DEBUG_EXIT; - return; - } - } -} - -/**************************************************************************** -REMARKS: -Halts the system by setting the halted system flag. -****************************************************************************/ -void X86EMU_halt_sys(void) -{ - M.x86.intr |= INTR_HALTED; -} - -/**************************************************************************** -PARAMETERS: -mod - Mod value from decoded byte -regh - Reg h value from decoded byte -regl - Reg l value from decoded byte - -REMARKS: -Raise the specified interrupt to be handled before the execution of the -next instruction. - -NOTE: Do not inline this function, as (*sys_rdb) is already inline! -****************************************************************************/ -void fetch_decode_modrm( - int *mod, - int *regh, - int *regl) -{ - int fetched; - -DB( if (CHECK_IP_FETCH()) - x86emu_check_ip_access();) - fetched = (*sys_rdb)(((u32)M.x86.R_CS << 4) + (M.x86.R_IP++)); - INC_DECODED_INST_LEN(1); - *mod = (fetched >> 6) & 0x03; - *regh = (fetched >> 3) & 0x07; - *regl = (fetched >> 0) & 0x07; -} - -/**************************************************************************** -RETURNS: -Immediate byte value read from instruction queue - -REMARKS: -This function returns the immediate byte from the instruction queue, and -moves the instruction pointer to the next value. - -NOTE: Do not inline this function, as (*sys_rdb) is already inline! -****************************************************************************/ -u8 fetch_byte_imm(void) -{ - u8 fetched; - -DB( if (CHECK_IP_FETCH()) - x86emu_check_ip_access();) - fetched = (*sys_rdb)(((u32)M.x86.R_CS << 4) + (M.x86.R_IP++)); - INC_DECODED_INST_LEN(1); - return fetched; -} - -/**************************************************************************** -RETURNS: -Immediate word value read from instruction queue - -REMARKS: -This function returns the immediate byte from the instruction queue, and -moves the instruction pointer to the next value. - -NOTE: Do not inline this function, as (*sys_rdw) is already inline! -****************************************************************************/ -u16 fetch_word_imm(void) -{ - u16 fetched; - -DB( if (CHECK_IP_FETCH()) - x86emu_check_ip_access();) - fetched = (*sys_rdw)(((u32)M.x86.R_CS << 4) + (M.x86.R_IP)); - M.x86.R_IP += 2; - INC_DECODED_INST_LEN(2); - return fetched; -} - -/**************************************************************************** -RETURNS: -Immediate lone value read from instruction queue - -REMARKS: -This function returns the immediate byte from the instruction queue, and -moves the instruction pointer to the next value. - -NOTE: Do not inline this function, as (*sys_rdw) is already inline! -****************************************************************************/ -u32 fetch_long_imm(void) -{ - u32 fetched; - -DB( if (CHECK_IP_FETCH()) - x86emu_check_ip_access();) - fetched = (*sys_rdl)(((u32)M.x86.R_CS << 4) + (M.x86.R_IP)); - M.x86.R_IP += 4; - INC_DECODED_INST_LEN(4); - return fetched; -} - -/**************************************************************************** -RETURNS: -Value of the default data segment - -REMARKS: -Inline function that returns the default data segment for the current -instruction. - -On the x86 processor, the default segment is not always DS if there is -no segment override. Address modes such as -3[BP] or 10[BP+SI] all refer to -addresses relative to SS (ie: on the stack). So, at the minimum, all -decodings of addressing modes would have to set/clear a bit describing -whether the access is relative to DS or SS. That is the function of the -cpu-state-varible M.x86.mode. There are several potential states: - - repe prefix seen (handled elsewhere) - repne prefix seen (ditto) - - cs segment override - ds segment override - es segment override - fs segment override - gs segment override - ss segment override - - ds/ss select (in absense of override) - -Each of the above 7 items are handled with a bit in the mode field. -****************************************************************************/ -_INLINE u32 get_data_segment(void) -{ -#define GET_SEGMENT(segment) - switch (M.x86.mode & SYSMODE_SEGMASK) { - case 0: /* default case: use ds register */ - case SYSMODE_SEGOVR_DS: - case SYSMODE_SEGOVR_DS | SYSMODE_SEG_DS_SS: - return M.x86.R_DS; - case SYSMODE_SEG_DS_SS: /* non-overridden, use ss register */ - return M.x86.R_SS; - case SYSMODE_SEGOVR_CS: - case SYSMODE_SEGOVR_CS | SYSMODE_SEG_DS_SS: - return M.x86.R_CS; - case SYSMODE_SEGOVR_ES: - case SYSMODE_SEGOVR_ES | SYSMODE_SEG_DS_SS: - return M.x86.R_ES; - case SYSMODE_SEGOVR_FS: - case SYSMODE_SEGOVR_FS | SYSMODE_SEG_DS_SS: - return M.x86.R_FS; - case SYSMODE_SEGOVR_GS: - case SYSMODE_SEGOVR_GS | SYSMODE_SEG_DS_SS: - return M.x86.R_GS; - case SYSMODE_SEGOVR_SS: - case SYSMODE_SEGOVR_SS | SYSMODE_SEG_DS_SS: - return M.x86.R_SS; - default: -#ifdef DEBUG - printk("error: should not happen: multiple overrides.\n"); -#endif - HALT_SYS(); - return 0; - } -} - -/**************************************************************************** -PARAMETERS: -offset - Offset to load data from - -RETURNS: -Byte value read from the absolute memory location. - -NOTE: Do not inline this function as (*sys_rdX) is already inline! -****************************************************************************/ -u8 fetch_data_byte( - uint offset) -{ -#ifdef DEBUG - if (CHECK_DATA_ACCESS()) - x86emu_check_data_access((u16)get_data_segment(), offset); -#endif - return (*sys_rdb)((get_data_segment() << 4) + offset); -} - -/**************************************************************************** -PARAMETERS: -offset - Offset to load data from - -RETURNS: -Word value read from the absolute memory location. - -NOTE: Do not inline this function as (*sys_rdX) is already inline! -****************************************************************************/ -u16 fetch_data_word( - uint offset) -{ -#ifdef DEBUG - if (CHECK_DATA_ACCESS()) - x86emu_check_data_access((u16)get_data_segment(), offset); -#endif - return (*sys_rdw)((get_data_segment() << 4) + offset); -} - -/**************************************************************************** -PARAMETERS: -offset - Offset to load data from - -RETURNS: -Long value read from the absolute memory location. - -NOTE: Do not inline this function as (*sys_rdX) is already inline! -****************************************************************************/ -u32 fetch_data_long( - uint offset) -{ -#ifdef DEBUG - if (CHECK_DATA_ACCESS()) - x86emu_check_data_access((u16)get_data_segment(), offset); -#endif - return (*sys_rdl)((get_data_segment() << 4) + offset); -} - -/**************************************************************************** -PARAMETERS: -segment - Segment to load data from -offset - Offset to load data from - -RETURNS: -Byte value read from the absolute memory location. - -NOTE: Do not inline this function as (*sys_rdX) is already inline! -****************************************************************************/ -u8 fetch_data_byte_abs( - uint segment, - uint offset) -{ -#ifdef DEBUG - if (CHECK_DATA_ACCESS()) - x86emu_check_data_access(segment, offset); -#endif - return (*sys_rdb)(((u32)segment << 4) + offset); -} - -/**************************************************************************** -PARAMETERS: -segment - Segment to load data from -offset - Offset to load data from - -RETURNS: -Word value read from the absolute memory location. - -NOTE: Do not inline this function as (*sys_rdX) is already inline! -****************************************************************************/ -u16 fetch_data_word_abs( - uint segment, - uint offset) -{ -#ifdef DEBUG - if (CHECK_DATA_ACCESS()) - x86emu_check_data_access(segment, offset); -#endif - return (*sys_rdw)(((u32)segment << 4) + offset); -} - -/**************************************************************************** -PARAMETERS: -segment - Segment to load data from -offset - Offset to load data from - -RETURNS: -Long value read from the absolute memory location. - -NOTE: Do not inline this function as (*sys_rdX) is already inline! -****************************************************************************/ -u32 fetch_data_long_abs( - uint segment, - uint offset) -{ -#ifdef DEBUG - if (CHECK_DATA_ACCESS()) - x86emu_check_data_access(segment, offset); -#endif - return (*sys_rdl)(((u32)segment << 4) + offset); -} - -/**************************************************************************** -PARAMETERS: -offset - Offset to store data at -val - Value to store - -REMARKS: -Writes a word value to an segmented memory location. The segment used is -the current 'default' segment, which may have been overridden. - -NOTE: Do not inline this function as (*sys_wrX) is already inline! -****************************************************************************/ -void store_data_byte( - uint offset, - u8 val) -{ -#ifdef DEBUG - if (CHECK_DATA_ACCESS()) - x86emu_check_data_access((u16)get_data_segment(), offset); -#endif - (*sys_wrb)((get_data_segment() << 4) + offset, val); -} - -/**************************************************************************** -PARAMETERS: -offset - Offset to store data at -val - Value to store - -REMARKS: -Writes a word value to an segmented memory location. The segment used is -the current 'default' segment, which may have been overridden. - -NOTE: Do not inline this function as (*sys_wrX) is already inline! -****************************************************************************/ -void store_data_word( - uint offset, - u16 val) -{ -#ifdef DEBUG - if (CHECK_DATA_ACCESS()) - x86emu_check_data_access((u16)get_data_segment(), offset); -#endif - (*sys_wrw)((get_data_segment() << 4) + offset, val); -} - -/**************************************************************************** -PARAMETERS: -offset - Offset to store data at -val - Value to store - -REMARKS: -Writes a long value to an segmented memory location. The segment used is -the current 'default' segment, which may have been overridden. - -NOTE: Do not inline this function as (*sys_wrX) is already inline! -****************************************************************************/ -void store_data_long( - uint offset, - u32 val) -{ -#ifdef DEBUG - if (CHECK_DATA_ACCESS()) - x86emu_check_data_access((u16)get_data_segment(), offset); -#endif - (*sys_wrl)((get_data_segment() << 4) + offset, val); -} - -/**************************************************************************** -PARAMETERS: -segment - Segment to store data at -offset - Offset to store data at -val - Value to store - -REMARKS: -Writes a byte value to an absolute memory location. - -NOTE: Do not inline this function as (*sys_wrX) is already inline! -****************************************************************************/ -void store_data_byte_abs( - uint segment, - uint offset, - u8 val) -{ -#ifdef DEBUG - if (CHECK_DATA_ACCESS()) - x86emu_check_data_access(segment, offset); -#endif - (*sys_wrb)(((u32)segment << 4) + offset, val); -} - -/**************************************************************************** -PARAMETERS: -segment - Segment to store data at -offset - Offset to store data at -val - Value to store - -REMARKS: -Writes a word value to an absolute memory location. - -NOTE: Do not inline this function as (*sys_wrX) is already inline! -****************************************************************************/ -void store_data_word_abs( - uint segment, - uint offset, - u16 val) -{ -#ifdef DEBUG - if (CHECK_DATA_ACCESS()) - x86emu_check_data_access(segment, offset); -#endif - (*sys_wrw)(((u32)segment << 4) + offset, val); -} - -/**************************************************************************** -PARAMETERS: -segment - Segment to store data at -offset - Offset to store data at -val - Value to store - -REMARKS: -Writes a long value to an absolute memory location. - -NOTE: Do not inline this function as (*sys_wrX) is already inline! -****************************************************************************/ -void store_data_long_abs( - uint segment, - uint offset, - u32 val) -{ -#ifdef DEBUG - if (CHECK_DATA_ACCESS()) - x86emu_check_data_access(segment, offset); -#endif - (*sys_wrl)(((u32)segment << 4) + offset, val); -} - -/**************************************************************************** -PARAMETERS: -reg - Register to decode - -RETURNS: -Pointer to the appropriate register - -REMARKS: -Return a pointer to the register given by the R/RM field of the -modrm byte, for byte operands. Also enables the decoding of instructions. -****************************************************************************/ -u8* decode_rm_byte_register( - int reg) -{ - switch (reg) { - case 0: - DECODE_PRINTF("AL"); - return &M.x86.R_AL; - case 1: - DECODE_PRINTF("CL"); - return &M.x86.R_CL; - case 2: - DECODE_PRINTF("DL"); - return &M.x86.R_DL; - case 3: - DECODE_PRINTF("BL"); - return &M.x86.R_BL; - case 4: - DECODE_PRINTF("AH"); - return &M.x86.R_AH; - case 5: - DECODE_PRINTF("CH"); - return &M.x86.R_CH; - case 6: - DECODE_PRINTF("DH"); - return &M.x86.R_DH; - case 7: - DECODE_PRINTF("BH"); - return &M.x86.R_BH; - } - HALT_SYS(); - return NULL; /* NOT REACHED OR REACHED ON ERROR */ -} - -/**************************************************************************** -PARAMETERS: -reg - Register to decode - -RETURNS: -Pointer to the appropriate register - -REMARKS: -Return a pointer to the register given by the R/RM field of the -modrm byte, for word operands. Also enables the decoding of instructions. -****************************************************************************/ -u16* decode_rm_word_register( - int reg) -{ - switch (reg) { - case 0: - DECODE_PRINTF("AX"); - return &M.x86.R_AX; - case 1: - DECODE_PRINTF("CX"); - return &M.x86.R_CX; - case 2: - DECODE_PRINTF("DX"); - return &M.x86.R_DX; - case 3: - DECODE_PRINTF("BX"); - return &M.x86.R_BX; - case 4: - DECODE_PRINTF("SP"); - return &M.x86.R_SP; - case 5: - DECODE_PRINTF("BP"); - return &M.x86.R_BP; - case 6: - DECODE_PRINTF("SI"); - return &M.x86.R_SI; - case 7: - DECODE_PRINTF("DI"); - return &M.x86.R_DI; - } - HALT_SYS(); - return NULL; /* NOTREACHED OR REACHED ON ERROR */ -} - -/**************************************************************************** -PARAMETERS: -reg - Register to decode - -RETURNS: -Pointer to the appropriate register - -REMARKS: -Return a pointer to the register given by the R/RM field of the -modrm byte, for dword operands. Also enables the decoding of instructions. -****************************************************************************/ -u32* decode_rm_long_register( - int reg) -{ - switch (reg) { - case 0: - DECODE_PRINTF("EAX"); - return &M.x86.R_EAX; - case 1: - DECODE_PRINTF("ECX"); - return &M.x86.R_ECX; - case 2: - DECODE_PRINTF("EDX"); - return &M.x86.R_EDX; - case 3: - DECODE_PRINTF("EBX"); - return &M.x86.R_EBX; - case 4: - DECODE_PRINTF("ESP"); - return &M.x86.R_ESP; - case 5: - DECODE_PRINTF("EBP"); - return &M.x86.R_EBP; - case 6: - DECODE_PRINTF("ESI"); - return &M.x86.R_ESI; - case 7: - DECODE_PRINTF("EDI"); - return &M.x86.R_EDI; - } - HALT_SYS(); - return NULL; /* NOTREACHED OR REACHED ON ERROR */ -} - -/**************************************************************************** -PARAMETERS: -reg - Register to decode - -RETURNS: -Pointer to the appropriate register - -REMARKS: -Return a pointer to the register given by the R/RM field of the -modrm byte, for word operands, modified from above for the weirdo -special case of segreg operands. Also enables the decoding of instructions. -****************************************************************************/ -u16* decode_rm_seg_register( - int reg) -{ - switch (reg) { - case 0: - DECODE_PRINTF("ES"); - return &M.x86.R_ES; - case 1: - DECODE_PRINTF("CS"); - return &M.x86.R_CS; - case 2: - DECODE_PRINTF("SS"); - return &M.x86.R_SS; - case 3: - DECODE_PRINTF("DS"); - return &M.x86.R_DS; - case 4: - DECODE_PRINTF("FS"); - return &M.x86.R_FS; - case 5: - DECODE_PRINTF("GS"); - return &M.x86.R_GS; - case 6: - case 7: - DECODE_PRINTF("ILLEGAL SEGREG"); - break; - } - HALT_SYS(); - return NULL; /* NOT REACHED OR REACHED ON ERROR */ -} - -/* - * - * return offset from the SIB Byte - */ -u32 decode_sib_address(int sib, int mod) -{ - u32 base = 0, i = 0, scale = 1; - - switch(sib & 0x07) { - case 0: - DECODE_PRINTF("[EAX]"); - base = M.x86.R_EAX; - break; - case 1: - DECODE_PRINTF("[ECX]"); - base = M.x86.R_ECX; - break; - case 2: - DECODE_PRINTF("[EDX]"); - base = M.x86.R_EDX; - break; - case 3: - DECODE_PRINTF("[EBX]"); - base = M.x86.R_EBX; - break; - case 4: - DECODE_PRINTF("[ESP]"); - base = M.x86.R_ESP; - M.x86.mode |= SYSMODE_SEG_DS_SS; - break; - case 5: - if (mod == 0) { - base = fetch_long_imm(); - DECODE_PRINTF2("%08x", base); - } else { - DECODE_PRINTF("[EBP]"); - base = M.x86.R_ESP; - M.x86.mode |= SYSMODE_SEG_DS_SS; - } - break; - case 6: - DECODE_PRINTF("[ESI]"); - base = M.x86.R_ESI; - break; - case 7: - DECODE_PRINTF("[EDI]"); - base = M.x86.R_EDI; - break; - } - switch ((sib >> 3) & 0x07) { - case 0: - DECODE_PRINTF("[EAX"); - i = M.x86.R_EAX; - break; - case 1: - DECODE_PRINTF("[ECX"); - i = M.x86.R_ECX; - break; - case 2: - DECODE_PRINTF("[EDX"); - i = M.x86.R_EDX; - break; - case 3: - DECODE_PRINTF("[EBX"); - i = M.x86.R_EBX; - break; - case 4: - i = 0; - break; - case 5: - DECODE_PRINTF("[EBP"); - i = M.x86.R_EBP; - break; - case 6: - DECODE_PRINTF("[ESI"); - i = M.x86.R_ESI; - break; - case 7: - DECODE_PRINTF("[EDI"); - i = M.x86.R_EDI; - break; - } - scale = 1 << ((sib >> 6) & 0x03); - if (((sib >> 3) & 0x07) != 4) { - if (scale == 1) { - DECODE_PRINTF("]"); - } else { - DECODE_PRINTF2("*%d]", scale); - } - } - return base + (i * scale); -} - -/**************************************************************************** -PARAMETERS: -rm - RM value to decode - -RETURNS: -Offset in memory for the address decoding - -REMARKS: -Return the offset given by mod=00 addressing. Also enables the -decoding of instructions. - -NOTE: The code which specifies the corresponding segment (ds vs ss) - below in the case of [BP+..]. The assumption here is that at the - point that this subroutine is called, the bit corresponding to - SYSMODE_SEG_DS_SS will be zero. After every instruction - except the segment override instructions, this bit (as well - as any bits indicating segment overrides) will be clear. So - if a SS access is needed, set this bit. Otherwise, DS access - occurs (unless any of the segment override bits are set). -****************************************************************************/ -u32 decode_rm00_address( - int rm) -{ - u32 offset; - int sib; - - if (M.x86.mode & SYSMODE_PREFIX_ADDR) { - /* 32-bit addressing */ - switch (rm) { - case 0: - DECODE_PRINTF("[EAX]"); - return M.x86.R_EAX; - case 1: - DECODE_PRINTF("[ECX]"); - return M.x86.R_ECX; - case 2: - DECODE_PRINTF("[EDX]"); - return M.x86.R_EDX; - case 3: - DECODE_PRINTF("[EBX]"); - return M.x86.R_EBX; - case 4: - sib = fetch_byte_imm(); - return decode_sib_address(sib, 0); - case 5: - offset = fetch_long_imm(); - DECODE_PRINTF2("[%08x]", offset); - return offset; - case 6: - DECODE_PRINTF("[ESI]"); - return M.x86.R_ESI; - case 7: - DECODE_PRINTF("[EDI]"); - return M.x86.R_EDI; - } - HALT_SYS(); - } else { - /* 16-bit addressing */ - switch (rm) { - case 0: - DECODE_PRINTF("[BX+SI]"); - return (M.x86.R_BX + M.x86.R_SI) & 0xffff; - case 1: - DECODE_PRINTF("[BX+DI]"); - return (M.x86.R_BX + M.x86.R_DI) & 0xffff; - case 2: - DECODE_PRINTF("[BP+SI]"); - M.x86.mode |= SYSMODE_SEG_DS_SS; - return (M.x86.R_BP + M.x86.R_SI) & 0xffff; - case 3: - DECODE_PRINTF("[BP+DI]"); - M.x86.mode |= SYSMODE_SEG_DS_SS; - return (M.x86.R_BP + M.x86.R_DI) & 0xffff; - case 4: - DECODE_PRINTF("[SI]"); - return M.x86.R_SI; - case 5: - DECODE_PRINTF("[DI]"); - return M.x86.R_DI; - case 6: - offset = fetch_word_imm(); - DECODE_PRINTF2("[%04x]", offset); - return offset; - case 7: - DECODE_PRINTF("[BX]"); - return M.x86.R_BX; - } - HALT_SYS(); - } - return 0; -} - -/**************************************************************************** -PARAMETERS: -rm - RM value to decode - -RETURNS: -Offset in memory for the address decoding - -REMARKS: -Return the offset given by mod=01 addressing. Also enables the -decoding of instructions. -****************************************************************************/ -u32 decode_rm01_address( - int rm) -{ - int displacement = 0; - int sib; - - /* Fetch disp8 if no SIB byte */ - if (!((M.x86.mode & SYSMODE_PREFIX_ADDR) && (rm == 4))) - displacement = (s8)fetch_byte_imm(); - - if (M.x86.mode & SYSMODE_PREFIX_ADDR) { - /* 32-bit addressing */ - switch (rm) { - case 0: - DECODE_PRINTF2("%d[EAX]", displacement); - return M.x86.R_EAX + displacement; - case 1: - DECODE_PRINTF2("%d[ECX]", displacement); - return M.x86.R_ECX + displacement; - case 2: - DECODE_PRINTF2("%d[EDX]", displacement); - return M.x86.R_EDX + displacement; - case 3: - DECODE_PRINTF2("%d[EBX]", displacement); - return M.x86.R_EBX + displacement; - case 4: - sib = fetch_byte_imm(); - displacement = (s8)fetch_byte_imm(); - DECODE_PRINTF2("%d", displacement); - return decode_sib_address(sib, 1) + displacement; - case 5: - DECODE_PRINTF2("%d[EBP]", displacement); - return M.x86.R_EBP + displacement; - case 6: - DECODE_PRINTF2("%d[ESI]", displacement); - return M.x86.R_ESI + displacement; - case 7: - DECODE_PRINTF2("%d[EDI]", displacement); - return M.x86.R_EDI + displacement; - } - HALT_SYS(); - } else { - /* 16-bit addressing */ - switch (rm) { - case 0: - DECODE_PRINTF2("%d[BX+SI]", displacement); - return (M.x86.R_BX + M.x86.R_SI + displacement) & 0xffff; - case 1: - DECODE_PRINTF2("%d[BX+DI]", displacement); - return (M.x86.R_BX + M.x86.R_DI + displacement) & 0xffff; - case 2: - DECODE_PRINTF2("%d[BP+SI]", displacement); - M.x86.mode |= SYSMODE_SEG_DS_SS; - return (M.x86.R_BP + M.x86.R_SI + displacement) & 0xffff; - case 3: - DECODE_PRINTF2("%d[BP+DI]", displacement); - M.x86.mode |= SYSMODE_SEG_DS_SS; - return (M.x86.R_BP + M.x86.R_DI + displacement) & 0xffff; - case 4: - DECODE_PRINTF2("%d[SI]", displacement); - return (M.x86.R_SI + displacement) & 0xffff; - case 5: - DECODE_PRINTF2("%d[DI]", displacement); - return (M.x86.R_DI + displacement) & 0xffff; - case 6: - DECODE_PRINTF2("%d[BP]", displacement); - M.x86.mode |= SYSMODE_SEG_DS_SS; - return (M.x86.R_BP + displacement) & 0xffff; - case 7: - DECODE_PRINTF2("%d[BX]", displacement); - return (M.x86.R_BX + displacement) & 0xffff; - } - HALT_SYS(); - } - return 0; /* SHOULD NOT HAPPEN */ -} - -/**************************************************************************** -PARAMETERS: -rm - RM value to decode - -RETURNS: -Offset in memory for the address decoding - -REMARKS: -Return the offset given by mod=10 addressing. Also enables the -decoding of instructions. -****************************************************************************/ -u32 decode_rm10_address( - int rm) -{ - u32 displacement = 0; - int sib; - - /* Fetch disp16 if 16-bit addr mode */ - if (!(M.x86.mode & SYSMODE_PREFIX_ADDR)) - displacement = (u16)fetch_word_imm(); - else { - /* Fetch disp32 if no SIB byte */ - if (rm != 4) - displacement = (u32)fetch_long_imm(); - } - - if (M.x86.mode & SYSMODE_PREFIX_ADDR) { - /* 32-bit addressing */ - switch (rm) { - case 0: - DECODE_PRINTF2("%08x[EAX]", displacement); - return M.x86.R_EAX + displacement; - case 1: - DECODE_PRINTF2("%08x[ECX]", displacement); - return M.x86.R_ECX + displacement; - case 2: - DECODE_PRINTF2("%08x[EDX]", displacement); - M.x86.mode |= SYSMODE_SEG_DS_SS; - return M.x86.R_EDX + displacement; - case 3: - DECODE_PRINTF2("%08x[EBX]", displacement); - return M.x86.R_EBX + displacement; - case 4: - sib = fetch_byte_imm(); - displacement = (u32)fetch_long_imm(); - DECODE_PRINTF2("%08x", displacement); - return decode_sib_address(sib, 2) + displacement; - break; - case 5: - DECODE_PRINTF2("%08x[EBP]", displacement); - return M.x86.R_EBP + displacement; - case 6: - DECODE_PRINTF2("%08x[ESI]", displacement); - return M.x86.R_ESI + displacement; - case 7: - DECODE_PRINTF2("%08x[EDI]", displacement); - return M.x86.R_EDI + displacement; - } - HALT_SYS(); - } else { - /* 16-bit addressing */ - switch (rm) { - case 0: - DECODE_PRINTF2("%04x[BX+SI]", displacement); - return (M.x86.R_BX + M.x86.R_SI + displacement) & 0xffff; - case 1: - DECODE_PRINTF2("%04x[BX+DI]", displacement); - return (M.x86.R_BX + M.x86.R_DI + displacement) & 0xffff; - case 2: - DECODE_PRINTF2("%04x[BP+SI]", displacement); - M.x86.mode |= SYSMODE_SEG_DS_SS; - return (M.x86.R_BP + M.x86.R_SI + displacement) & 0xffff; - case 3: - DECODE_PRINTF2("%04x[BP+DI]", displacement); - M.x86.mode |= SYSMODE_SEG_DS_SS; - return (M.x86.R_BP + M.x86.R_DI + displacement) & 0xffff; - case 4: - DECODE_PRINTF2("%04x[SI]", displacement); - return (M.x86.R_SI + displacement) & 0xffff; - case 5: - DECODE_PRINTF2("%04x[DI]", displacement); - return (M.x86.R_DI + displacement) & 0xffff; - case 6: - DECODE_PRINTF2("%04x[BP]", displacement); - M.x86.mode |= SYSMODE_SEG_DS_SS; - return (M.x86.R_BP + displacement) & 0xffff; - case 7: - DECODE_PRINTF2("%04x[BX]", displacement); - return (M.x86.R_BX + displacement) & 0xffff; - } - HALT_SYS(); - } - return 0; - /*NOTREACHED */ -} diff --git a/x86emu/fpu.c b/x86emu/fpu.c deleted file mode 100644 index b72de1e..0000000 --- a/x86emu/fpu.c +++ /dev/null @@ -1,965 +0,0 @@ -/**************************************************************************** -* -* Realmode X86 Emulator Library -* -* Copyright (C) 1996-1999 SciTech Software, Inc. -* Copyright (C) David Mosberger-Tang -* Copyright (C) 1999 Egbert Eich -* -* ======================================================================== -* -* Permission to use, copy, modify, distribute, and sell this software and -* its documentation for any purpose is hereby granted without fee, -* provided that the above copyright notice appear in all copies and that -* both that copyright notice and this permission notice appear in -* supporting documentation, and that the name of the authors not be used -* in advertising or publicity pertaining to distribution of the software -* without specific, written prior permission. The authors makes no -* representations about the suitability of this software for any purpose. -* It is provided "as is" without express or implied warranty. -* -* THE AUTHORS DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, -* INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO -* EVENT SHALL THE AUTHORS BE LIABLE FOR ANY SPECIAL, INDIRECT OR -* CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF -* USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR -* OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR -* PERFORMANCE OF THIS SOFTWARE. -* -* ======================================================================== -* -* Language: ANSI C -* Environment: Any -* Developer: Kendall Bennett -* -* Description: This file contains the code to implement the decoding and -* emulation of the FPU instructions. -* -****************************************************************************/ - -#include "x86emu/x86emui.h" - -/*----------------------------- Implementation ----------------------------*/ - -/* opcode=0xd8 */ -void x86emuOp_esc_coprocess_d8(u8 X86EMU_UNUSED(op1)) -{ - START_OF_INSTR(); - DECODE_PRINTF("ESC D8\n"); - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR_NO_TRACE(); -} - -#ifdef DEBUG - -static char *x86emu_fpu_op_d9_tab[] = { - "FLD\tDWORD PTR ", "ESC_D9\t", "FST\tDWORD PTR ", "FSTP\tDWORD PTR ", - "FLDENV\t", "FLDCW\t", "FSTENV\t", "FSTCW\t", - - "FLD\tDWORD PTR ", "ESC_D9\t", "FST\tDWORD PTR ", "FSTP\tDWORD PTR ", - "FLDENV\t", "FLDCW\t", "FSTENV\t", "FSTCW\t", - - "FLD\tDWORD PTR ", "ESC_D9\t", "FST\tDWORD PTR ", "FSTP\tDWORD PTR ", - "FLDENV\t", "FLDCW\t", "FSTENV\t", "FSTCW\t", -}; - -static char *x86emu_fpu_op_d9_tab1[] = { - "FLD\t", "FLD\t", "FLD\t", "FLD\t", - "FLD\t", "FLD\t", "FLD\t", "FLD\t", - - "FXCH\t", "FXCH\t", "FXCH\t", "FXCH\t", - "FXCH\t", "FXCH\t", "FXCH\t", "FXCH\t", - - "FNOP", "ESC_D9", "ESC_D9", "ESC_D9", - "ESC_D9", "ESC_D9", "ESC_D9", "ESC_D9", - - "FSTP\t", "FSTP\t", "FSTP\t", "FSTP\t", - "FSTP\t", "FSTP\t", "FSTP\t", "FSTP\t", - - "FCHS", "FABS", "ESC_D9", "ESC_D9", - "FTST", "FXAM", "ESC_D9", "ESC_D9", - - "FLD1", "FLDL2T", "FLDL2E", "FLDPI", - "FLDLG2", "FLDLN2", "FLDZ", "ESC_D9", - - "F2XM1", "FYL2X", "FPTAN", "FPATAN", - "FXTRACT", "ESC_D9", "FDECSTP", "FINCSTP", - - "FPREM", "FYL2XP1", "FSQRT", "ESC_D9", - "FRNDINT", "FSCALE", "ESC_D9", "ESC_D9", -}; - -#endif /* DEBUG */ - -/* opcode=0xd9 */ -void x86emuOp_esc_coprocess_d9(u8 X86EMU_UNUSED(op1)) -{ - int mod, rl, rh; - uint destoffset = 0; - u8 stkelem = 0; - - START_OF_INSTR(); - FETCH_DECODE_MODRM(mod, rh, rl); -#ifdef DEBUG - if (mod != 3) { - DECODE_PRINTINSTR32(x86emu_fpu_op_d9_tab, mod, rh, rl); - } else { - DECODE_PRINTF(x86emu_fpu_op_d9_tab1[(rh << 3) + rl]); - } -#endif - switch (mod) { - case 0: - destoffset = decode_rm00_address(rl); - DECODE_PRINTF("\n"); - break; - case 1: - destoffset = decode_rm01_address(rl); - DECODE_PRINTF("\n"); - break; - case 2: - destoffset = decode_rm10_address(rl); - DECODE_PRINTF("\n"); - break; - case 3: /* register to register */ - stkelem = (u8)rl; - if (rh < 4) { - DECODE_PRINTF2("ST(%d)\n", stkelem); - } else { - DECODE_PRINTF("\n"); - } - break; - } -#ifdef X86EMU_FPU_PRESENT - /* execute */ - switch (mod) { - case 3: - switch (rh) { - case 0: - x86emu_fpu_R_fld(X86EMU_FPU_STKTOP, stkelem); - break; - case 1: - x86emu_fpu_R_fxch(X86EMU_FPU_STKTOP, stkelem); - break; - case 2: - switch (rl) { - case 0: - x86emu_fpu_R_nop(); - break; - default: - x86emu_fpu_illegal(); - break; - } - case 3: - x86emu_fpu_R_fstp(X86EMU_FPU_STKTOP, stkelem); - break; - case 4: - switch (rl) { - case 0: - x86emu_fpu_R_fchs(X86EMU_FPU_STKTOP); - break; - case 1: - x86emu_fpu_R_fabs(X86EMU_FPU_STKTOP); - break; - case 4: - x86emu_fpu_R_ftst(X86EMU_FPU_STKTOP); - break; - case 5: - x86emu_fpu_R_fxam(X86EMU_FPU_STKTOP); - break; - default: - /* 2,3,6,7 */ - x86emu_fpu_illegal(); - break; - } - break; - - case 5: - switch (rl) { - case 0: - x86emu_fpu_R_fld1(X86EMU_FPU_STKTOP); - break; - case 1: - x86emu_fpu_R_fldl2t(X86EMU_FPU_STKTOP); - break; - case 2: - x86emu_fpu_R_fldl2e(X86EMU_FPU_STKTOP); - break; - case 3: - x86emu_fpu_R_fldpi(X86EMU_FPU_STKTOP); - break; - case 4: - x86emu_fpu_R_fldlg2(X86EMU_FPU_STKTOP); - break; - case 5: - x86emu_fpu_R_fldln2(X86EMU_FPU_STKTOP); - break; - case 6: - x86emu_fpu_R_fldz(X86EMU_FPU_STKTOP); - break; - default: - /* 7 */ - x86emu_fpu_illegal(); - break; - } - break; - - case 6: - switch (rl) { - case 0: - x86emu_fpu_R_f2xm1(X86EMU_FPU_STKTOP); - break; - case 1: - x86emu_fpu_R_fyl2x(X86EMU_FPU_STKTOP); - break; - case 2: - x86emu_fpu_R_fptan(X86EMU_FPU_STKTOP); - break; - case 3: - x86emu_fpu_R_fpatan(X86EMU_FPU_STKTOP); - break; - case 4: - x86emu_fpu_R_fxtract(X86EMU_FPU_STKTOP); - break; - case 5: - x86emu_fpu_illegal(); - break; - case 6: - x86emu_fpu_R_decstp(); - break; - case 7: - x86emu_fpu_R_incstp(); - break; - } - break; - - case 7: - switch (rl) { - case 0: - x86emu_fpu_R_fprem(X86EMU_FPU_STKTOP); - break; - case 1: - x86emu_fpu_R_fyl2xp1(X86EMU_FPU_STKTOP); - break; - case 2: - x86emu_fpu_R_fsqrt(X86EMU_FPU_STKTOP); - break; - case 3: - x86emu_fpu_illegal(); - break; - case 4: - x86emu_fpu_R_frndint(X86EMU_FPU_STKTOP); - break; - case 5: - x86emu_fpu_R_fscale(X86EMU_FPU_STKTOP); - break; - case 6: - case 7: - default: - x86emu_fpu_illegal(); - break; - } - break; - - default: - switch (rh) { - case 0: - x86emu_fpu_M_fld(X86EMU_FPU_FLOAT, destoffset); - break; - case 1: - x86emu_fpu_illegal(); - break; - case 2: - x86emu_fpu_M_fst(X86EMU_FPU_FLOAT, destoffset); - break; - case 3: - x86emu_fpu_M_fstp(X86EMU_FPU_FLOAT, destoffset); - break; - case 4: - x86emu_fpu_M_fldenv(X86EMU_FPU_WORD, destoffset); - break; - case 5: - x86emu_fpu_M_fldcw(X86EMU_FPU_WORD, destoffset); - break; - case 6: - x86emu_fpu_M_fstenv(X86EMU_FPU_WORD, destoffset); - break; - case 7: - x86emu_fpu_M_fstcw(X86EMU_FPU_WORD, destoffset); - break; - } - } - } -#else - (void)destoffset; - (void)stkelem; -#endif /* X86EMU_FPU_PRESENT */ - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR_NO_TRACE(); -} - -#ifdef DEBUG - -char *x86emu_fpu_op_da_tab[] = { - "FIADD\tDWORD PTR ", "FIMUL\tDWORD PTR ", "FICOM\tDWORD PTR ", - "FICOMP\tDWORD PTR ", - "FISUB\tDWORD PTR ", "FISUBR\tDWORD PTR ", "FIDIV\tDWORD PTR ", - "FIDIVR\tDWORD PTR ", - - "FIADD\tDWORD PTR ", "FIMUL\tDWORD PTR ", "FICOM\tDWORD PTR ", - "FICOMP\tDWORD PTR ", - "FISUB\tDWORD PTR ", "FISUBR\tDWORD PTR ", "FIDIV\tDWORD PTR ", - "FIDIVR\tDWORD PTR ", - - "FIADD\tDWORD PTR ", "FIMUL\tDWORD PTR ", "FICOM\tDWORD PTR ", - "FICOMP\tDWORD PTR ", - "FISUB\tDWORD PTR ", "FISUBR\tDWORD PTR ", "FIDIV\tDWORD PTR ", - "FIDIVR\tDWORD PTR ", - - "ESC_DA ", "ESC_DA ", "ESC_DA ", "ESC_DA ", - "ESC_DA ", "ESC_DA ", "ESC_DA ", "ESC_DA ", -}; - -#endif /* DEBUG */ - -/* opcode=0xda */ -void x86emuOp_esc_coprocess_da(u8 X86EMU_UNUSED(op1)) -{ - int mod, rl, rh; - uint destoffset = 0; - u8 stkelem = 0; - - START_OF_INSTR(); - FETCH_DECODE_MODRM(mod, rh, rl); - DECODE_PRINTINSTR32(x86emu_fpu_op_da_tab, mod, rh, rl); - switch (mod) { - case 0: - destoffset = decode_rm00_address(rl); - DECODE_PRINTF("\n"); - break; - case 1: - destoffset = decode_rm01_address(rl); - DECODE_PRINTF("\n"); - break; - case 2: - destoffset = decode_rm10_address(rl); - DECODE_PRINTF("\n"); - break; - case 3: /* register to register */ - stkelem = (u8)rl; - DECODE_PRINTF2("\tST(%d),ST\n", stkelem); - break; - } -#ifdef X86EMU_FPU_PRESENT - switch (mod) { - case 3: - x86emu_fpu_illegal(); - break; - default: - switch (rh) { - case 0: - x86emu_fpu_M_iadd(X86EMU_FPU_SHORT, destoffset); - break; - case 1: - x86emu_fpu_M_imul(X86EMU_FPU_SHORT, destoffset); - break; - case 2: - x86emu_fpu_M_icom(X86EMU_FPU_SHORT, destoffset); - break; - case 3: - x86emu_fpu_M_icomp(X86EMU_FPU_SHORT, destoffset); - break; - case 4: - x86emu_fpu_M_isub(X86EMU_FPU_SHORT, destoffset); - break; - case 5: - x86emu_fpu_M_isubr(X86EMU_FPU_SHORT, destoffset); - break; - case 6: - x86emu_fpu_M_idiv(X86EMU_FPU_SHORT, destoffset); - break; - case 7: - x86emu_fpu_M_idivr(X86EMU_FPU_SHORT, destoffset); - break; - } - } -#else - (void)destoffset; - (void)stkelem; -#endif - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR_NO_TRACE(); -} - -#ifdef DEBUG - -char *x86emu_fpu_op_db_tab[] = { - "FILD\tDWORD PTR ", "ESC_DB\t19", "FIST\tDWORD PTR ", "FISTP\tDWORD PTR ", - "ESC_DB\t1C", "FLD\tTBYTE PTR ", "ESC_DB\t1E", "FSTP\tTBYTE PTR ", - - "FILD\tDWORD PTR ", "ESC_DB\t19", "FIST\tDWORD PTR ", "FISTP\tDWORD PTR ", - "ESC_DB\t1C", "FLD\tTBYTE PTR ", "ESC_DB\t1E", "FSTP\tTBYTE PTR ", - - "FILD\tDWORD PTR ", "ESC_DB\t19", "FIST\tDWORD PTR ", "FISTP\tDWORD PTR ", - "ESC_DB\t1C", "FLD\tTBYTE PTR ", "ESC_DB\t1E", "FSTP\tTBYTE PTR ", -}; - -#endif /* DEBUG */ - -/* opcode=0xdb */ -void x86emuOp_esc_coprocess_db(u8 X86EMU_UNUSED(op1)) -{ - int mod, rl, rh; - uint destoffset = 0; - - START_OF_INSTR(); - FETCH_DECODE_MODRM(mod, rh, rl); -#ifdef DEBUG - if (mod != 3) { - DECODE_PRINTINSTR32(x86emu_fpu_op_db_tab, mod, rh, rl); - } else if (rh == 4) { /* === 11 10 0 nnn */ - switch (rl) { - case 0: - DECODE_PRINTF("FENI\n"); - break; - case 1: - DECODE_PRINTF("FDISI\n"); - break; - case 2: - DECODE_PRINTF("FCLEX\n"); - break; - case 3: - DECODE_PRINTF("FINIT\n"); - break; - } - } else { - DECODE_PRINTF2("ESC_DB %0x\n", (mod << 6) + (rh << 3) + (rl)); - } -#endif /* DEBUG */ - switch (mod) { - case 0: - destoffset = decode_rm00_address(rl); - break; - case 1: - destoffset = decode_rm01_address(rl); - break; - case 2: - destoffset = decode_rm10_address(rl); - break; - case 3: /* register to register */ - break; - } -#ifdef X86EMU_FPU_PRESENT - /* execute */ - switch (mod) { - case 3: - switch (rh) { - case 4: - switch (rl) { - case 0: - x86emu_fpu_R_feni(); - break; - case 1: - x86emu_fpu_R_fdisi(); - break; - case 2: - x86emu_fpu_R_fclex(); - break; - case 3: - x86emu_fpu_R_finit(); - break; - default: - x86emu_fpu_illegal(); - break; - } - break; - default: - x86emu_fpu_illegal(); - break; - } - break; - default: - switch (rh) { - case 0: - x86emu_fpu_M_fild(X86EMU_FPU_SHORT, destoffset); - break; - case 1: - x86emu_fpu_illegal(); - break; - case 2: - x86emu_fpu_M_fist(X86EMU_FPU_SHORT, destoffset); - break; - case 3: - x86emu_fpu_M_fistp(X86EMU_FPU_SHORT, destoffset); - break; - case 4: - x86emu_fpu_illegal(); - break; - case 5: - x86emu_fpu_M_fld(X86EMU_FPU_LDBL, destoffset); - break; - case 6: - x86emu_fpu_illegal(); - break; - case 7: - x86emu_fpu_M_fstp(X86EMU_FPU_LDBL, destoffset); - break; - } - } -#else - (void)destoffset; -#endif - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR_NO_TRACE(); -} - -#ifdef DEBUG -char *x86emu_fpu_op_dc_tab[] = { - "FADD\tQWORD PTR ", "FMUL\tQWORD PTR ", "FCOM\tQWORD PTR ", - "FCOMP\tQWORD PTR ", - "FSUB\tQWORD PTR ", "FSUBR\tQWORD PTR ", "FDIV\tQWORD PTR ", - "FDIVR\tQWORD PTR ", - - "FADD\tQWORD PTR ", "FMUL\tQWORD PTR ", "FCOM\tQWORD PTR ", - "FCOMP\tQWORD PTR ", - "FSUB\tQWORD PTR ", "FSUBR\tQWORD PTR ", "FDIV\tQWORD PTR ", - "FDIVR\tQWORD PTR ", - - "FADD\tQWORD PTR ", "FMUL\tQWORD PTR ", "FCOM\tQWORD PTR ", - "FCOMP\tQWORD PTR ", - "FSUB\tQWORD PTR ", "FSUBR\tQWORD PTR ", "FDIV\tQWORD PTR ", - "FDIVR\tQWORD PTR ", - - "FADD\t", "FMUL\t", "FCOM\t", "FCOMP\t", - "FSUBR\t", "FSUB\t", "FDIVR\t", "FDIV\t", -}; -#endif /* DEBUG */ - -/* opcode=0xdc */ -void x86emuOp_esc_coprocess_dc(u8 X86EMU_UNUSED(op1)) -{ - int mod, rl, rh; - uint destoffset = 0; - u8 stkelem = 0; - - START_OF_INSTR(); - FETCH_DECODE_MODRM(mod, rh, rl); - DECODE_PRINTINSTR32(x86emu_fpu_op_dc_tab, mod, rh, rl); - switch (mod) { - case 0: - destoffset = decode_rm00_address(rl); - DECODE_PRINTF("\n"); - break; - case 1: - destoffset = decode_rm01_address(rl); - DECODE_PRINTF("\n"); - break; - case 2: - destoffset = decode_rm10_address(rl); - DECODE_PRINTF("\n"); - break; - case 3: /* register to register */ - stkelem = (u8)rl; - DECODE_PRINTF2("\tST(%d),ST\n", stkelem); - break; - } -#ifdef X86EMU_FPU_PRESENT - /* execute */ - switch (mod) { - case 3: - switch (rh) { - case 0: - x86emu_fpu_R_fadd(stkelem, X86EMU_FPU_STKTOP); - break; - case 1: - x86emu_fpu_R_fmul(stkelem, X86EMU_FPU_STKTOP); - break; - case 2: - x86emu_fpu_R_fcom(stkelem, X86EMU_FPU_STKTOP); - break; - case 3: - x86emu_fpu_R_fcomp(stkelem, X86EMU_FPU_STKTOP); - break; - case 4: - x86emu_fpu_R_fsubr(stkelem, X86EMU_FPU_STKTOP); - break; - case 5: - x86emu_fpu_R_fsub(stkelem, X86EMU_FPU_STKTOP); - break; - case 6: - x86emu_fpu_R_fdivr(stkelem, X86EMU_FPU_STKTOP); - break; - case 7: - x86emu_fpu_R_fdiv(stkelem, X86EMU_FPU_STKTOP); - break; - } - break; - default: - switch (rh) { - case 0: - x86emu_fpu_M_fadd(X86EMU_FPU_DOUBLE, destoffset); - break; - case 1: - x86emu_fpu_M_fmul(X86EMU_FPU_DOUBLE, destoffset); - break; - case 2: - x86emu_fpu_M_fcom(X86EMU_FPU_DOUBLE, destoffset); - break; - case 3: - x86emu_fpu_M_fcomp(X86EMU_FPU_DOUBLE, destoffset); - break; - case 4: - x86emu_fpu_M_fsub(X86EMU_FPU_DOUBLE, destoffset); - break; - case 5: - x86emu_fpu_M_fsubr(X86EMU_FPU_DOUBLE, destoffset); - break; - case 6: - x86emu_fpu_M_fdiv(X86EMU_FPU_DOUBLE, destoffset); - break; - case 7: - x86emu_fpu_M_fdivr(X86EMU_FPU_DOUBLE, destoffset); - break; - } - } -#else - (void)destoffset; - (void)stkelem; -#endif - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR_NO_TRACE(); -} - -#ifdef DEBUG - -static char *x86emu_fpu_op_dd_tab[] = { - "FLD\tQWORD PTR ", "ESC_DD\t29,", "FST\tQWORD PTR ", "FSTP\tQWORD PTR ", - "FRSTOR\t", "ESC_DD\t2D,", "FSAVE\t", "FSTSW\t", - - "FLD\tQWORD PTR ", "ESC_DD\t29,", "FST\tQWORD PTR ", "FSTP\tQWORD PTR ", - "FRSTOR\t", "ESC_DD\t2D,", "FSAVE\t", "FSTSW\t", - - "FLD\tQWORD PTR ", "ESC_DD\t29,", "FST\tQWORD PTR ", "FSTP\tQWORD PTR ", - "FRSTOR\t", "ESC_DD\t2D,", "FSAVE\t", "FSTSW\t", - - "FFREE\t", "FXCH\t", "FST\t", "FSTP\t", - "ESC_DD\t2C,", "ESC_DD\t2D,", "ESC_DD\t2E,", "ESC_DD\t2F,", -}; - -#endif /* DEBUG */ - -/* opcode=0xdd */ -void x86emuOp_esc_coprocess_dd(u8 X86EMU_UNUSED(op1)) -{ - int mod, rl, rh; - uint destoffset = 0; - u8 stkelem = 0; - - START_OF_INSTR(); - FETCH_DECODE_MODRM(mod, rh, rl); - DECODE_PRINTINSTR32(x86emu_fpu_op_dd_tab, mod, rh, rl); - switch (mod) { - case 0: - destoffset = decode_rm00_address(rl); - DECODE_PRINTF("\n"); - break; - case 1: - destoffset = decode_rm01_address(rl); - DECODE_PRINTF("\n"); - break; - case 2: - destoffset = decode_rm10_address(rl); - DECODE_PRINTF("\n"); - break; - case 3: /* register to register */ - stkelem = (u8)rl; - DECODE_PRINTF2("\tST(%d),ST\n", stkelem); - break; - } -#ifdef X86EMU_FPU_PRESENT - switch (mod) { - case 3: - switch (rh) { - case 0: - x86emu_fpu_R_ffree(stkelem); - break; - case 1: - x86emu_fpu_R_fxch(stkelem); - break; - case 2: - x86emu_fpu_R_fst(stkelem); /* register version */ - break; - case 3: - x86emu_fpu_R_fstp(stkelem); /* register version */ - break; - default: - x86emu_fpu_illegal(); - break; - } - break; - default: - switch (rh) { - case 0: - x86emu_fpu_M_fld(X86EMU_FPU_DOUBLE, destoffset); - break; - case 1: - x86emu_fpu_illegal(); - break; - case 2: - x86emu_fpu_M_fst(X86EMU_FPU_DOUBLE, destoffset); - break; - case 3: - x86emu_fpu_M_fstp(X86EMU_FPU_DOUBLE, destoffset); - break; - case 4: - x86emu_fpu_M_frstor(X86EMU_FPU_WORD, destoffset); - break; - case 5: - x86emu_fpu_illegal(); - break; - case 6: - x86emu_fpu_M_fsave(X86EMU_FPU_WORD, destoffset); - break; - case 7: - x86emu_fpu_M_fstsw(X86EMU_FPU_WORD, destoffset); - break; - } - } -#else - (void)destoffset; - (void)stkelem; -#endif - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR_NO_TRACE(); -} - -#ifdef DEBUG - -static char *x86emu_fpu_op_de_tab[] = -{ - "FIADD\tWORD PTR ", "FIMUL\tWORD PTR ", "FICOM\tWORD PTR ", - "FICOMP\tWORD PTR ", - "FISUB\tWORD PTR ", "FISUBR\tWORD PTR ", "FIDIV\tWORD PTR ", - "FIDIVR\tWORD PTR ", - - "FIADD\tWORD PTR ", "FIMUL\tWORD PTR ", "FICOM\tWORD PTR ", - "FICOMP\tWORD PTR ", - "FISUB\tWORD PTR ", "FISUBR\tWORD PTR ", "FIDIV\tWORD PTR ", - "FIDIVR\tWORD PTR ", - - "FIADD\tWORD PTR ", "FIMUL\tWORD PTR ", "FICOM\tWORD PTR ", - "FICOMP\tWORD PTR ", - "FISUB\tWORD PTR ", "FISUBR\tWORD PTR ", "FIDIV\tWORD PTR ", - "FIDIVR\tWORD PTR ", - - "FADDP\t", "FMULP\t", "FCOMP\t", "FCOMPP\t", - "FSUBRP\t", "FSUBP\t", "FDIVRP\t", "FDIVP\t", -}; - -#endif /* DEBUG */ - -/* opcode=0xde */ -void x86emuOp_esc_coprocess_de(u8 X86EMU_UNUSED(op1)) -{ - int mod, rl, rh; - uint destoffset = 0; - u8 stkelem = 0; - - START_OF_INSTR(); - FETCH_DECODE_MODRM(mod, rh, rl); - DECODE_PRINTINSTR32(x86emu_fpu_op_de_tab, mod, rh, rl); - switch (mod) { - case 0: - destoffset = decode_rm00_address(rl); - DECODE_PRINTF("\n"); - break; - case 1: - destoffset = decode_rm01_address(rl); - DECODE_PRINTF("\n"); - break; - case 2: - destoffset = decode_rm10_address(rl); - DECODE_PRINTF("\n"); - break; - case 3: /* register to register */ - stkelem = (u8)rl; - DECODE_PRINTF2("\tST(%d),ST\n", stkelem); - break; - } -#ifdef X86EMU_FPU_PRESENT - switch (mod) { - case 3: - switch (rh) { - case 0: - x86emu_fpu_R_faddp(stkelem, X86EMU_FPU_STKTOP); - break; - case 1: - x86emu_fpu_R_fmulp(stkelem, X86EMU_FPU_STKTOP); - break; - case 2: - x86emu_fpu_R_fcomp(stkelem, X86EMU_FPU_STKTOP); - break; - case 3: - if (stkelem == 1) - x86emu_fpu_R_fcompp(stkelem, X86EMU_FPU_STKTOP); - else - x86emu_fpu_illegal(); - break; - case 4: - x86emu_fpu_R_fsubrp(stkelem, X86EMU_FPU_STKTOP); - break; - case 5: - x86emu_fpu_R_fsubp(stkelem, X86EMU_FPU_STKTOP); - break; - case 6: - x86emu_fpu_R_fdivrp(stkelem, X86EMU_FPU_STKTOP); - break; - case 7: - x86emu_fpu_R_fdivp(stkelem, X86EMU_FPU_STKTOP); - break; - } - break; - default: - switch (rh) { - case 0: - x86emu_fpu_M_fiadd(X86EMU_FPU_WORD, destoffset); - break; - case 1: - x86emu_fpu_M_fimul(X86EMU_FPU_WORD, destoffset); - break; - case 2: - x86emu_fpu_M_ficom(X86EMU_FPU_WORD, destoffset); - break; - case 3: - x86emu_fpu_M_ficomp(X86EMU_FPU_WORD, destoffset); - break; - case 4: - x86emu_fpu_M_fisub(X86EMU_FPU_WORD, destoffset); - break; - case 5: - x86emu_fpu_M_fisubr(X86EMU_FPU_WORD, destoffset); - break; - case 6: - x86emu_fpu_M_fidiv(X86EMU_FPU_WORD, destoffset); - break; - case 7: - x86emu_fpu_M_fidivr(X86EMU_FPU_WORD, destoffset); - break; - } - } -#else - (void)destoffset; - (void)stkelem; -#endif - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR_NO_TRACE(); -} - -#ifdef DEBUG - -static char *x86emu_fpu_op_df_tab[] = { - /* mod == 00 */ - "FILD\tWORD PTR ", "ESC_DF\t39\n", "FIST\tWORD PTR ", "FISTP\tWORD PTR ", - "FBLD\tTBYTE PTR ", "FILD\tQWORD PTR ", "FBSTP\tTBYTE PTR ", - "FISTP\tQWORD PTR ", - - /* mod == 01 */ - "FILD\tWORD PTR ", "ESC_DF\t39 ", "FIST\tWORD PTR ", "FISTP\tWORD PTR ", - "FBLD\tTBYTE PTR ", "FILD\tQWORD PTR ", "FBSTP\tTBYTE PTR ", - "FISTP\tQWORD PTR ", - - /* mod == 10 */ - "FILD\tWORD PTR ", "ESC_DF\t39 ", "FIST\tWORD PTR ", "FISTP\tWORD PTR ", - "FBLD\tTBYTE PTR ", "FILD\tQWORD PTR ", "FBSTP\tTBYTE PTR ", - "FISTP\tQWORD PTR ", - - /* mod == 11 */ - "FFREE\t", "FXCH\t", "FST\t", "FSTP\t", - "ESC_DF\t3C,", "ESC_DF\t3D,", "ESC_DF\t3E,", "ESC_DF\t3F," -}; - -#endif /* DEBUG */ - -/* opcode=0xdf */ -void x86emuOp_esc_coprocess_df(u8 X86EMU_UNUSED(op1)) -{ - int mod, rl, rh; - uint destoffset = 0; - u8 stkelem = 0; - - START_OF_INSTR(); - FETCH_DECODE_MODRM(mod, rh, rl); - DECODE_PRINTINSTR32(x86emu_fpu_op_df_tab, mod, rh, rl); - switch (mod) { - case 0: - destoffset = decode_rm00_address(rl); - DECODE_PRINTF("\n"); - break; - case 1: - destoffset = decode_rm01_address(rl); - DECODE_PRINTF("\n"); - break; - case 2: - destoffset = decode_rm10_address(rl); - DECODE_PRINTF("\n"); - break; - case 3: /* register to register */ - stkelem = (u8)rl; - DECODE_PRINTF2("\tST(%d)\n", stkelem); - break; - } -#ifdef X86EMU_FPU_PRESENT - switch (mod) { - case 3: - switch (rh) { - case 0: - x86emu_fpu_R_ffree(stkelem); - break; - case 1: - x86emu_fpu_R_fxch(stkelem); - break; - case 2: - x86emu_fpu_R_fst(stkelem); /* register version */ - break; - case 3: - x86emu_fpu_R_fstp(stkelem); /* register version */ - break; - default: - x86emu_fpu_illegal(); - break; - } - break; - default: - switch (rh) { - case 0: - x86emu_fpu_M_fild(X86EMU_FPU_WORD, destoffset); - break; - case 1: - x86emu_fpu_illegal(); - break; - case 2: - x86emu_fpu_M_fist(X86EMU_FPU_WORD, destoffset); - break; - case 3: - x86emu_fpu_M_fistp(X86EMU_FPU_WORD, destoffset); - break; - case 4: - x86emu_fpu_M_fbld(X86EMU_FPU_BSD, destoffset); - break; - case 5: - x86emu_fpu_M_fild(X86EMU_FPU_LONG, destoffset); - break; - case 6: - x86emu_fpu_M_fbstp(X86EMU_FPU_BSD, destoffset); - break; - case 7: - x86emu_fpu_M_fistp(X86EMU_FPU_LONG, destoffset); - break; - } - } -#else - (void)destoffset; - (void)stkelem; -#endif - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR_NO_TRACE(); -} diff --git a/x86emu/ops.c b/x86emu/ops.c deleted file mode 100644 index 37ae2c9..0000000 --- a/x86emu/ops.c +++ /dev/null @@ -1,11697 +0,0 @@ -/**************************************************************************** -* -* Realmode X86 Emulator Library -* -* Copyright (C) 1996-1999 SciTech Software, Inc. -* Copyright (C) David Mosberger-Tang -* Copyright (C) 1999 Egbert Eich -* -* ======================================================================== -* -* Permission to use, copy, modify, distribute, and sell this software and -* its documentation for any purpose is hereby granted without fee, -* provided that the above copyright notice appear in all copies and that -* both that copyright notice and this permission notice appear in -* supporting documentation, and that the name of the authors not be used -* in advertising or publicity pertaining to distribution of the software -* without specific, written prior permission. The authors makes no -* representations about the suitability of this software for any purpose. -* It is provided "as is" without express or implied warranty. -* -* THE AUTHORS DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, -* INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO -* EVENT SHALL THE AUTHORS BE LIABLE FOR ANY SPECIAL, INDIRECT OR -* CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF -* USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR -* OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR -* PERFORMANCE OF THIS SOFTWARE. -* -* ======================================================================== -* -* Language: ANSI C -* Environment: Any -* Developer: Kendall Bennett -* -* Description: This file includes subroutines to implement the decoding -* and emulation of all the x86 processor instructions. -* -* There are approximately 250 subroutines in here, which correspond -* to the 256 byte-"opcodes" found on the 8086. The table which -* dispatches this is found in the files optab.[ch]. -* -* Each opcode proc has a comment preceeding it which gives it's table -* address. Several opcodes are missing (undefined) in the table. -* -* Each proc includes information for decoding (DECODE_PRINTF and -* DECODE_PRINTF2), debugging (TRACE_REGS, SINGLE_STEP), and misc -* functions (START_OF_INSTR, END_OF_INSTR). -* -* Many of the procedures are *VERY* similar in coding. This has -* allowed for a very large amount of code to be generated in a fairly -* short amount of time (i.e. cut, paste, and modify). The result is -* that much of the code below could have been folded into subroutines -* for a large reduction in size of this file. The downside would be -* that there would be a penalty in execution speed. The file could -* also have been *MUCH* larger by inlining certain functions which -* were called. This could have resulted even faster execution. The -* prime directive I used to decide whether to inline the code or to -* modularize it, was basically: 1) no unnecessary subroutine calls, -* 2) no routines more than about 200 lines in size, and 3) modularize -* any code that I might not get right the first time. The fetch_* -* subroutines fall into the latter category. The The decode_* fall -* into the second category. The coding of the "switch(mod){ .... }" -* in many of the subroutines below falls into the first category. -* Especially, the coding of {add,and,or,sub,...}_{byte,word} -* subroutines are an especially glaring case of the third guideline. -* Since so much of the code is cloned from other modules (compare -* opcode #00 to opcode #01), making the basic operations subroutine -* calls is especially important; otherwise mistakes in coding an -* "add" would represent a nightmare in maintenance. -* -****************************************************************************/ - -#include "x86emu/x86emui.h" - -/*----------------------------- Implementation ----------------------------*/ - -/**************************************************************************** -PARAMETERS: -op1 - Instruction op code - -REMARKS: -Handles illegal opcodes. -****************************************************************************/ -static void x86emuOp_illegal_op( - u8 op1) -{ - START_OF_INSTR(); - if (M.x86.R_SP != 0) { - DECODE_PRINTF("ILLEGAL X86 OPCODE\n"); - TRACE_REGS(); - DB( printk("%04x:%04x: %02X ILLEGAL X86 OPCODE!\n", - M.x86.R_CS, M.x86.R_IP-1,op1)); - HALT_SYS(); - } - else { - /* If we get here, it means the stack pointer is back to zero - * so we are just returning from an emulator service call - * so therte is no need to display an error message. We trap - * the emulator with an 0xF1 opcode to finish the service - * call. - */ - X86EMU_halt_sys(); - } - END_OF_INSTR(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0x00 -****************************************************************************/ -static void x86emuOp_add_byte_RM_R(u8 X86EMU_UNUSED(op1)) -{ - int mod, rl, rh; - uint destoffset; - u8 *destreg, *srcreg; - u8 destval; - - START_OF_INSTR(); - DECODE_PRINTF("ADD\t"); - FETCH_DECODE_MODRM(mod, rh, rl); - switch (mod) { - case 0: - destoffset = decode_rm00_address(rl); - DECODE_PRINTF(","); - destval = fetch_data_byte(destoffset); - srcreg = DECODE_RM_BYTE_REGISTER(rh); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - destval = add_byte(destval, *srcreg); - store_data_byte(destoffset, destval); - break; - case 1: - destoffset = decode_rm01_address(rl); - DECODE_PRINTF(","); - destval = fetch_data_byte(destoffset); - srcreg = DECODE_RM_BYTE_REGISTER(rh); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - destval = add_byte(destval, *srcreg); - store_data_byte(destoffset, destval); - break; - case 2: - destoffset = decode_rm10_address(rl); - DECODE_PRINTF(","); - destval = fetch_data_byte(destoffset); - srcreg = DECODE_RM_BYTE_REGISTER(rh); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - destval = add_byte(destval, *srcreg); - store_data_byte(destoffset, destval); - break; - case 3: /* register to register */ - destreg = DECODE_RM_BYTE_REGISTER(rl); - DECODE_PRINTF(","); - srcreg = DECODE_RM_BYTE_REGISTER(rh); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - *destreg = add_byte(*destreg, *srcreg); - break; - } - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0x01 -****************************************************************************/ -static void x86emuOp_add_word_RM_R(u8 X86EMU_UNUSED(op1)) -{ - int mod, rl, rh; - uint destoffset; - - START_OF_INSTR(); - DECODE_PRINTF("ADD\t"); - FETCH_DECODE_MODRM(mod, rh, rl); - switch (mod) { - case 0: - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - u32 destval; - u32 *srcreg; - - destoffset = decode_rm00_address(rl); - DECODE_PRINTF(","); - destval = fetch_data_long(destoffset); - srcreg = DECODE_RM_LONG_REGISTER(rh); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - destval = add_long(destval, *srcreg); - store_data_long(destoffset, destval); - } else { - u16 destval; - u16 *srcreg; - - destoffset = decode_rm00_address(rl); - DECODE_PRINTF(","); - destval = fetch_data_word(destoffset); - srcreg = DECODE_RM_WORD_REGISTER(rh); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - destval = add_word(destval, *srcreg); - store_data_word(destoffset, destval); - } - break; - case 1: - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - u32 destval; - u32 *srcreg; - - destoffset = decode_rm01_address(rl); - DECODE_PRINTF(","); - destval = fetch_data_long(destoffset); - srcreg = DECODE_RM_LONG_REGISTER(rh); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - destval = add_long(destval, *srcreg); - store_data_long(destoffset, destval); - } else { - u16 destval; - u16 *srcreg; - - destoffset = decode_rm01_address(rl); - DECODE_PRINTF(","); - destval = fetch_data_word(destoffset); - srcreg = DECODE_RM_WORD_REGISTER(rh); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - destval = add_word(destval, *srcreg); - store_data_word(destoffset, destval); - } - break; - case 2: - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - u32 destval; - u32 *srcreg; - - destoffset = decode_rm10_address(rl); - DECODE_PRINTF(","); - destval = fetch_data_long(destoffset); - srcreg = DECODE_RM_LONG_REGISTER(rh); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - destval = add_long(destval, *srcreg); - store_data_long(destoffset, destval); - } else { - u16 destval; - u16 *srcreg; - - destoffset = decode_rm10_address(rl); - DECODE_PRINTF(","); - destval = fetch_data_word(destoffset); - srcreg = DECODE_RM_WORD_REGISTER(rh); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - destval = add_word(destval, *srcreg); - store_data_word(destoffset, destval); - } - break; - case 3: /* register to register */ - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - u32 *destreg,*srcreg; - - destreg = DECODE_RM_LONG_REGISTER(rl); - DECODE_PRINTF(","); - srcreg = DECODE_RM_LONG_REGISTER(rh); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - *destreg = add_long(*destreg, *srcreg); - } else { - u16 *destreg,*srcreg; - - destreg = DECODE_RM_WORD_REGISTER(rl); - DECODE_PRINTF(","); - srcreg = DECODE_RM_WORD_REGISTER(rh); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - *destreg = add_word(*destreg, *srcreg); - } - break; - } - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0x02 -****************************************************************************/ -static void x86emuOp_add_byte_R_RM(u8 X86EMU_UNUSED(op1)) -{ - int mod, rl, rh; - u8 *destreg, *srcreg; - uint srcoffset; - u8 srcval; - - START_OF_INSTR(); - DECODE_PRINTF("ADD\t"); - FETCH_DECODE_MODRM(mod, rh, rl); - switch (mod) { - case 0: - destreg = DECODE_RM_BYTE_REGISTER(rh); - DECODE_PRINTF(","); - srcoffset = decode_rm00_address(rl); - srcval = fetch_data_byte(srcoffset); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - *destreg = add_byte(*destreg, srcval); - break; - case 1: - destreg = DECODE_RM_BYTE_REGISTER(rh); - DECODE_PRINTF(","); - srcoffset = decode_rm01_address(rl); - srcval = fetch_data_byte(srcoffset); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - *destreg = add_byte(*destreg, srcval); - break; - case 2: - destreg = DECODE_RM_BYTE_REGISTER(rh); - DECODE_PRINTF(","); - srcoffset = decode_rm10_address(rl); - srcval = fetch_data_byte(srcoffset); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - *destreg = add_byte(*destreg, srcval); - break; - case 3: /* register to register */ - destreg = DECODE_RM_BYTE_REGISTER(rh); - DECODE_PRINTF(","); - srcreg = DECODE_RM_BYTE_REGISTER(rl); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - *destreg = add_byte(*destreg, *srcreg); - break; - } - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0x03 -****************************************************************************/ -static void x86emuOp_add_word_R_RM(u8 X86EMU_UNUSED(op1)) -{ - int mod, rl, rh; - uint srcoffset; - - START_OF_INSTR(); - DECODE_PRINTF("ADD\t"); - FETCH_DECODE_MODRM(mod, rh, rl); - switch (mod) { - case 0: - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - u32 *destreg; - u32 srcval; - - destreg = DECODE_RM_LONG_REGISTER(rh); - DECODE_PRINTF(","); - srcoffset = decode_rm00_address(rl); - srcval = fetch_data_long(srcoffset); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - *destreg = add_long(*destreg, srcval); - } else { - u16 *destreg; - u16 srcval; - - destreg = DECODE_RM_WORD_REGISTER(rh); - DECODE_PRINTF(","); - srcoffset = decode_rm00_address(rl); - srcval = fetch_data_word(srcoffset); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - *destreg = add_word(*destreg, srcval); - } - break; - case 1: - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - u32 *destreg; - u32 srcval; - - destreg = DECODE_RM_LONG_REGISTER(rh); - DECODE_PRINTF(","); - srcoffset = decode_rm01_address(rl); - srcval = fetch_data_long(srcoffset); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - *destreg = add_long(*destreg, srcval); - } else { - u16 *destreg; - u16 srcval; - - destreg = DECODE_RM_WORD_REGISTER(rh); - DECODE_PRINTF(","); - srcoffset = decode_rm01_address(rl); - srcval = fetch_data_word(srcoffset); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - *destreg = add_word(*destreg, srcval); - } - break; - case 2: - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - u32 *destreg; - u32 srcval; - - destreg = DECODE_RM_LONG_REGISTER(rh); - DECODE_PRINTF(","); - srcoffset = decode_rm10_address(rl); - srcval = fetch_data_long(srcoffset); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - *destreg = add_long(*destreg, srcval); - } else { - u16 *destreg; - u16 srcval; - - destreg = DECODE_RM_WORD_REGISTER(rh); - DECODE_PRINTF(","); - srcoffset = decode_rm10_address(rl); - srcval = fetch_data_word(srcoffset); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - *destreg = add_word(*destreg, srcval); - } - break; - case 3: /* register to register */ - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - u32 *destreg,*srcreg; - - destreg = DECODE_RM_LONG_REGISTER(rh); - DECODE_PRINTF(","); - srcreg = DECODE_RM_LONG_REGISTER(rl); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - *destreg = add_long(*destreg, *srcreg); - } else { - u16 *destreg,*srcreg; - - destreg = DECODE_RM_WORD_REGISTER(rh); - DECODE_PRINTF(","); - srcreg = DECODE_RM_WORD_REGISTER(rl); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - *destreg = add_word(*destreg, *srcreg); - } - break; - } - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0x04 -****************************************************************************/ -static void x86emuOp_add_byte_AL_IMM(u8 X86EMU_UNUSED(op1)) -{ - u8 srcval; - - START_OF_INSTR(); - DECODE_PRINTF("ADD\tAL,"); - srcval = fetch_byte_imm(); - DECODE_PRINTF2("%x\n", srcval); - TRACE_AND_STEP(); - M.x86.R_AL = add_byte(M.x86.R_AL, srcval); - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0x05 -****************************************************************************/ -static void x86emuOp_add_word_AX_IMM(u8 X86EMU_UNUSED(op1)) -{ - u32 srcval; - - START_OF_INSTR(); - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - DECODE_PRINTF("ADD\tEAX,"); - srcval = fetch_long_imm(); - } else { - DECODE_PRINTF("ADD\tAX,"); - srcval = fetch_word_imm(); - } - DECODE_PRINTF2("%x\n", srcval); - TRACE_AND_STEP(); - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - M.x86.R_EAX = add_long(M.x86.R_EAX, srcval); - } else { - M.x86.R_AX = add_word(M.x86.R_AX, (u16)srcval); - } - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0x06 -****************************************************************************/ -static void x86emuOp_push_ES(u8 X86EMU_UNUSED(op1)) -{ - START_OF_INSTR(); - DECODE_PRINTF("PUSH\tES\n"); - TRACE_AND_STEP(); - push_word(M.x86.R_ES); - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0x07 -****************************************************************************/ -static void x86emuOp_pop_ES(u8 X86EMU_UNUSED(op1)) -{ - START_OF_INSTR(); - DECODE_PRINTF("POP\tES\n"); - TRACE_AND_STEP(); - M.x86.R_ES = pop_word(); - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0x08 -****************************************************************************/ -static void x86emuOp_or_byte_RM_R(u8 X86EMU_UNUSED(op1)) -{ - int mod, rl, rh; - u8 *destreg, *srcreg; - uint destoffset; - u8 destval; - - START_OF_INSTR(); - DECODE_PRINTF("OR\t"); - FETCH_DECODE_MODRM(mod, rh, rl); - switch (mod) { - case 0: - destoffset = decode_rm00_address(rl); - DECODE_PRINTF(","); - destval = fetch_data_byte(destoffset); - srcreg = DECODE_RM_BYTE_REGISTER(rh); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - destval = or_byte(destval, *srcreg); - store_data_byte(destoffset, destval); - break; - case 1: - destoffset = decode_rm01_address(rl); - DECODE_PRINTF(","); - destval = fetch_data_byte(destoffset); - srcreg = DECODE_RM_BYTE_REGISTER(rh); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - destval = or_byte(destval, *srcreg); - store_data_byte(destoffset, destval); - break; - case 2: - destoffset = decode_rm10_address(rl); - DECODE_PRINTF(","); - destval = fetch_data_byte(destoffset); - srcreg = DECODE_RM_BYTE_REGISTER(rh); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - destval = or_byte(destval, *srcreg); - store_data_byte(destoffset, destval); - break; - case 3: /* register to register */ - destreg = DECODE_RM_BYTE_REGISTER(rl); - DECODE_PRINTF(","); - srcreg = DECODE_RM_BYTE_REGISTER(rh); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - *destreg = or_byte(*destreg, *srcreg); - break; - } - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0x09 -****************************************************************************/ -static void x86emuOp_or_word_RM_R(u8 X86EMU_UNUSED(op1)) -{ - int mod, rl, rh; - uint destoffset; - - START_OF_INSTR(); - DECODE_PRINTF("OR\t"); - FETCH_DECODE_MODRM(mod, rh, rl); - switch (mod) { - case 0: - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - u32 destval; - u32 *srcreg; - - destoffset = decode_rm00_address(rl); - DECODE_PRINTF(","); - destval = fetch_data_long(destoffset); - srcreg = DECODE_RM_LONG_REGISTER(rh); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - destval = or_long(destval, *srcreg); - store_data_long(destoffset, destval); - } else { - u16 destval; - u16 *srcreg; - - destoffset = decode_rm00_address(rl); - DECODE_PRINTF(","); - destval = fetch_data_word(destoffset); - srcreg = DECODE_RM_WORD_REGISTER(rh); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - destval = or_word(destval, *srcreg); - store_data_word(destoffset, destval); - } - break; - case 1: - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - u32 destval; - u32 *srcreg; - - destoffset = decode_rm01_address(rl); - DECODE_PRINTF(","); - destval = fetch_data_long(destoffset); - srcreg = DECODE_RM_LONG_REGISTER(rh); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - destval = or_long(destval, *srcreg); - store_data_long(destoffset, destval); - } else { - u16 destval; - u16 *srcreg; - - destoffset = decode_rm01_address(rl); - DECODE_PRINTF(","); - destval = fetch_data_word(destoffset); - srcreg = DECODE_RM_WORD_REGISTER(rh); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - destval = or_word(destval, *srcreg); - store_data_word(destoffset, destval); - } - break; - case 2: - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - u32 destval; - u32 *srcreg; - - destoffset = decode_rm10_address(rl); - DECODE_PRINTF(","); - destval = fetch_data_long(destoffset); - srcreg = DECODE_RM_LONG_REGISTER(rh); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - destval = or_long(destval, *srcreg); - store_data_long(destoffset, destval); - } else { - u16 destval; - u16 *srcreg; - - destoffset = decode_rm10_address(rl); - DECODE_PRINTF(","); - destval = fetch_data_word(destoffset); - srcreg = DECODE_RM_WORD_REGISTER(rh); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - destval = or_word(destval, *srcreg); - store_data_word(destoffset, destval); - } - break; - case 3: /* register to register */ - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - u32 *destreg,*srcreg; - - destreg = DECODE_RM_LONG_REGISTER(rl); - DECODE_PRINTF(","); - srcreg = DECODE_RM_LONG_REGISTER(rh); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - *destreg = or_long(*destreg, *srcreg); - } else { - u16 *destreg,*srcreg; - - destreg = DECODE_RM_WORD_REGISTER(rl); - DECODE_PRINTF(","); - srcreg = DECODE_RM_WORD_REGISTER(rh); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - *destreg = or_word(*destreg, *srcreg); - } - break; - } - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0x0a -****************************************************************************/ -static void x86emuOp_or_byte_R_RM(u8 X86EMU_UNUSED(op1)) -{ - int mod, rl, rh; - u8 *destreg, *srcreg; - uint srcoffset; - u8 srcval; - - START_OF_INSTR(); - DECODE_PRINTF("OR\t"); - FETCH_DECODE_MODRM(mod, rh, rl); - switch (mod) { - case 0: - destreg = DECODE_RM_BYTE_REGISTER(rh); - DECODE_PRINTF(","); - srcoffset = decode_rm00_address(rl); - srcval = fetch_data_byte(srcoffset); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - *destreg = or_byte(*destreg, srcval); - break; - case 1: - destreg = DECODE_RM_BYTE_REGISTER(rh); - DECODE_PRINTF(","); - srcoffset = decode_rm01_address(rl); - srcval = fetch_data_byte(srcoffset); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - *destreg = or_byte(*destreg, srcval); - break; - case 2: - destreg = DECODE_RM_BYTE_REGISTER(rh); - DECODE_PRINTF(","); - srcoffset = decode_rm10_address(rl); - srcval = fetch_data_byte(srcoffset); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - *destreg = or_byte(*destreg, srcval); - break; - case 3: /* register to register */ - destreg = DECODE_RM_BYTE_REGISTER(rh); - DECODE_PRINTF(","); - srcreg = DECODE_RM_BYTE_REGISTER(rl); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - *destreg = or_byte(*destreg, *srcreg); - break; - } - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0x0b -****************************************************************************/ -static void x86emuOp_or_word_R_RM(u8 X86EMU_UNUSED(op1)) -{ - int mod, rl, rh; - uint srcoffset; - - START_OF_INSTR(); - DECODE_PRINTF("OR\t"); - FETCH_DECODE_MODRM(mod, rh, rl); - switch (mod) { - case 0: - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - u32 *destreg; - u32 srcval; - - destreg = DECODE_RM_LONG_REGISTER(rh); - DECODE_PRINTF(","); - srcoffset = decode_rm00_address(rl); - srcval = fetch_data_long(srcoffset); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - *destreg = or_long(*destreg, srcval); - } else { - u16 *destreg; - u16 srcval; - - destreg = DECODE_RM_WORD_REGISTER(rh); - DECODE_PRINTF(","); - srcoffset = decode_rm00_address(rl); - srcval = fetch_data_word(srcoffset); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - *destreg = or_word(*destreg, srcval); - } - break; - case 1: - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - u32 *destreg; - u32 srcval; - - destreg = DECODE_RM_LONG_REGISTER(rh); - DECODE_PRINTF(","); - srcoffset = decode_rm01_address(rl); - srcval = fetch_data_long(srcoffset); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - *destreg = or_long(*destreg, srcval); - } else { - u16 *destreg; - u16 srcval; - - destreg = DECODE_RM_WORD_REGISTER(rh); - DECODE_PRINTF(","); - srcoffset = decode_rm01_address(rl); - srcval = fetch_data_word(srcoffset); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - *destreg = or_word(*destreg, srcval); - } - break; - case 2: - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - u32 *destreg; - u32 srcval; - - destreg = DECODE_RM_LONG_REGISTER(rh); - DECODE_PRINTF(","); - srcoffset = decode_rm10_address(rl); - srcval = fetch_data_long(srcoffset); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - *destreg = or_long(*destreg, srcval); - } else { - u16 *destreg; - u16 srcval; - - destreg = DECODE_RM_WORD_REGISTER(rh); - DECODE_PRINTF(","); - srcoffset = decode_rm10_address(rl); - srcval = fetch_data_word(srcoffset); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - *destreg = or_word(*destreg, srcval); - } - break; - case 3: /* register to register */ - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - u32 *destreg,*srcreg; - - destreg = DECODE_RM_LONG_REGISTER(rh); - DECODE_PRINTF(","); - srcreg = DECODE_RM_LONG_REGISTER(rl); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - *destreg = or_long(*destreg, *srcreg); - } else { - u16 *destreg,*srcreg; - - destreg = DECODE_RM_WORD_REGISTER(rh); - DECODE_PRINTF(","); - srcreg = DECODE_RM_WORD_REGISTER(rl); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - *destreg = or_word(*destreg, *srcreg); - } - break; - } - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0x0c -****************************************************************************/ -static void x86emuOp_or_byte_AL_IMM(u8 X86EMU_UNUSED(op1)) -{ - u8 srcval; - - START_OF_INSTR(); - DECODE_PRINTF("OR\tAL,"); - srcval = fetch_byte_imm(); - DECODE_PRINTF2("%x\n", srcval); - TRACE_AND_STEP(); - M.x86.R_AL = or_byte(M.x86.R_AL, srcval); - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0x0d -****************************************************************************/ -static void x86emuOp_or_word_AX_IMM(u8 X86EMU_UNUSED(op1)) -{ - u32 srcval; - - START_OF_INSTR(); - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - DECODE_PRINTF("OR\tEAX,"); - srcval = fetch_long_imm(); - } else { - DECODE_PRINTF("OR\tAX,"); - srcval = fetch_word_imm(); - } - DECODE_PRINTF2("%x\n", srcval); - TRACE_AND_STEP(); - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - M.x86.R_EAX = or_long(M.x86.R_EAX, srcval); - } else { - M.x86.R_AX = or_word(M.x86.R_AX, (u16)srcval); - } - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0x0e -****************************************************************************/ -static void x86emuOp_push_CS(u8 X86EMU_UNUSED(op1)) -{ - START_OF_INSTR(); - DECODE_PRINTF("PUSH\tCS\n"); - TRACE_AND_STEP(); - push_word(M.x86.R_CS); - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0x0f. Escape for two-byte opcode (286 or better) -****************************************************************************/ -static void x86emuOp_two_byte(u8 X86EMU_UNUSED(op1)) -{ - u8 op2 = (*sys_rdb)(((u32)M.x86.R_CS << 4) + (M.x86.R_IP++)); - INC_DECODED_INST_LEN(1); - (*x86emu_optab2[op2])(op2); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0x10 -****************************************************************************/ -static void x86emuOp_adc_byte_RM_R(u8 X86EMU_UNUSED(op1)) -{ - int mod, rl, rh; - u8 *destreg, *srcreg; - uint destoffset; - u8 destval; - - START_OF_INSTR(); - DECODE_PRINTF("ADC\t"); - FETCH_DECODE_MODRM(mod, rh, rl); - switch (mod) { - case 0: - destoffset = decode_rm00_address(rl); - DECODE_PRINTF(","); - destval = fetch_data_byte(destoffset); - srcreg = DECODE_RM_BYTE_REGISTER(rh); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - destval = adc_byte(destval, *srcreg); - store_data_byte(destoffset, destval); - break; - case 1: - destoffset = decode_rm01_address(rl); - DECODE_PRINTF(","); - destval = fetch_data_byte(destoffset); - srcreg = DECODE_RM_BYTE_REGISTER(rh); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - destval = adc_byte(destval, *srcreg); - store_data_byte(destoffset, destval); - break; - case 2: - destoffset = decode_rm10_address(rl); - DECODE_PRINTF(","); - destval = fetch_data_byte(destoffset); - srcreg = DECODE_RM_BYTE_REGISTER(rh); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - destval = adc_byte(destval, *srcreg); - store_data_byte(destoffset, destval); - break; - case 3: /* register to register */ - destreg = DECODE_RM_BYTE_REGISTER(rl); - DECODE_PRINTF(","); - srcreg = DECODE_RM_BYTE_REGISTER(rh); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - *destreg = adc_byte(*destreg, *srcreg); - break; - } - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0x11 -****************************************************************************/ -static void x86emuOp_adc_word_RM_R(u8 X86EMU_UNUSED(op1)) -{ - int mod, rl, rh; - uint destoffset; - - START_OF_INSTR(); - DECODE_PRINTF("ADC\t"); - FETCH_DECODE_MODRM(mod, rh, rl); - switch (mod) { - case 0: - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - u32 destval; - u32 *srcreg; - - destoffset = decode_rm00_address(rl); - DECODE_PRINTF(","); - destval = fetch_data_long(destoffset); - srcreg = DECODE_RM_LONG_REGISTER(rh); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - destval = adc_long(destval, *srcreg); - store_data_long(destoffset, destval); - } else { - u16 destval; - u16 *srcreg; - - destoffset = decode_rm00_address(rl); - DECODE_PRINTF(","); - destval = fetch_data_word(destoffset); - srcreg = DECODE_RM_WORD_REGISTER(rh); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - destval = adc_word(destval, *srcreg); - store_data_word(destoffset, destval); - } - break; - case 1: - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - u32 destval; - u32 *srcreg; - - destoffset = decode_rm01_address(rl); - DECODE_PRINTF(","); - destval = fetch_data_long(destoffset); - srcreg = DECODE_RM_LONG_REGISTER(rh); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - destval = adc_long(destval, *srcreg); - store_data_long(destoffset, destval); - } else { - u16 destval; - u16 *srcreg; - - destoffset = decode_rm01_address(rl); - DECODE_PRINTF(","); - destval = fetch_data_word(destoffset); - srcreg = DECODE_RM_WORD_REGISTER(rh); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - destval = adc_word(destval, *srcreg); - store_data_word(destoffset, destval); - } - break; - case 2: - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - u32 destval; - u32 *srcreg; - - destoffset = decode_rm10_address(rl); - DECODE_PRINTF(","); - destval = fetch_data_long(destoffset); - srcreg = DECODE_RM_LONG_REGISTER(rh); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - destval = adc_long(destval, *srcreg); - store_data_long(destoffset, destval); - } else { - u16 destval; - u16 *srcreg; - - destoffset = decode_rm10_address(rl); - DECODE_PRINTF(","); - destval = fetch_data_word(destoffset); - srcreg = DECODE_RM_WORD_REGISTER(rh); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - destval = adc_word(destval, *srcreg); - store_data_word(destoffset, destval); - } - break; - case 3: /* register to register */ - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - u32 *destreg,*srcreg; - - destreg = DECODE_RM_LONG_REGISTER(rl); - DECODE_PRINTF(","); - srcreg = DECODE_RM_LONG_REGISTER(rh); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - *destreg = adc_long(*destreg, *srcreg); - } else { - u16 *destreg,*srcreg; - - destreg = DECODE_RM_WORD_REGISTER(rl); - DECODE_PRINTF(","); - srcreg = DECODE_RM_WORD_REGISTER(rh); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - *destreg = adc_word(*destreg, *srcreg); - } - break; - } - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0x12 -****************************************************************************/ -static void x86emuOp_adc_byte_R_RM(u8 X86EMU_UNUSED(op1)) -{ - int mod, rl, rh; - u8 *destreg, *srcreg; - uint srcoffset; - u8 srcval; - - START_OF_INSTR(); - DECODE_PRINTF("ADC\t"); - FETCH_DECODE_MODRM(mod, rh, rl); - switch (mod) { - case 0: - destreg = DECODE_RM_BYTE_REGISTER(rh); - DECODE_PRINTF(","); - srcoffset = decode_rm00_address(rl); - srcval = fetch_data_byte(srcoffset); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - *destreg = adc_byte(*destreg, srcval); - break; - case 1: - destreg = DECODE_RM_BYTE_REGISTER(rh); - DECODE_PRINTF(","); - srcoffset = decode_rm01_address(rl); - srcval = fetch_data_byte(srcoffset); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - *destreg = adc_byte(*destreg, srcval); - break; - case 2: - destreg = DECODE_RM_BYTE_REGISTER(rh); - DECODE_PRINTF(","); - srcoffset = decode_rm10_address(rl); - srcval = fetch_data_byte(srcoffset); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - *destreg = adc_byte(*destreg, srcval); - break; - case 3: /* register to register */ - destreg = DECODE_RM_BYTE_REGISTER(rh); - DECODE_PRINTF(","); - srcreg = DECODE_RM_BYTE_REGISTER(rl); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - *destreg = adc_byte(*destreg, *srcreg); - break; - } - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0x13 -****************************************************************************/ -static void x86emuOp_adc_word_R_RM(u8 X86EMU_UNUSED(op1)) -{ - int mod, rl, rh; - uint srcoffset; - - START_OF_INSTR(); - DECODE_PRINTF("ADC\t"); - FETCH_DECODE_MODRM(mod, rh, rl); - switch (mod) { - case 0: - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - u32 *destreg; - u32 srcval; - - destreg = DECODE_RM_LONG_REGISTER(rh); - DECODE_PRINTF(","); - srcoffset = decode_rm00_address(rl); - srcval = fetch_data_long(srcoffset); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - *destreg = adc_long(*destreg, srcval); - } else { - u16 *destreg; - u16 srcval; - - destreg = DECODE_RM_WORD_REGISTER(rh); - DECODE_PRINTF(","); - srcoffset = decode_rm00_address(rl); - srcval = fetch_data_word(srcoffset); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - *destreg = adc_word(*destreg, srcval); - } - break; - case 1: - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - u32 *destreg; - u32 srcval; - - destreg = DECODE_RM_LONG_REGISTER(rh); - DECODE_PRINTF(","); - srcoffset = decode_rm01_address(rl); - srcval = fetch_data_long(srcoffset); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - *destreg = adc_long(*destreg, srcval); - } else { - u16 *destreg; - u16 srcval; - - destreg = DECODE_RM_WORD_REGISTER(rh); - DECODE_PRINTF(","); - srcoffset = decode_rm01_address(rl); - srcval = fetch_data_word(srcoffset); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - *destreg = adc_word(*destreg, srcval); - } - break; - case 2: - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - u32 *destreg; - u32 srcval; - - destreg = DECODE_RM_LONG_REGISTER(rh); - DECODE_PRINTF(","); - srcoffset = decode_rm10_address(rl); - srcval = fetch_data_long(srcoffset); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - *destreg = adc_long(*destreg, srcval); - } else { - u16 *destreg; - u16 srcval; - - destreg = DECODE_RM_WORD_REGISTER(rh); - DECODE_PRINTF(","); - srcoffset = decode_rm10_address(rl); - srcval = fetch_data_word(srcoffset); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - *destreg = adc_word(*destreg, srcval); - } - break; - case 3: /* register to register */ - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - u32 *destreg,*srcreg; - - destreg = DECODE_RM_LONG_REGISTER(rh); - DECODE_PRINTF(","); - srcreg = DECODE_RM_LONG_REGISTER(rl); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - *destreg = adc_long(*destreg, *srcreg); - } else { - u16 *destreg,*srcreg; - - destreg = DECODE_RM_WORD_REGISTER(rh); - DECODE_PRINTF(","); - srcreg = DECODE_RM_WORD_REGISTER(rl); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - *destreg = adc_word(*destreg, *srcreg); - } - break; - } - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0x14 -****************************************************************************/ -static void x86emuOp_adc_byte_AL_IMM(u8 X86EMU_UNUSED(op1)) -{ - u8 srcval; - - START_OF_INSTR(); - DECODE_PRINTF("ADC\tAL,"); - srcval = fetch_byte_imm(); - DECODE_PRINTF2("%x\n", srcval); - TRACE_AND_STEP(); - M.x86.R_AL = adc_byte(M.x86.R_AL, srcval); - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0x15 -****************************************************************************/ -static void x86emuOp_adc_word_AX_IMM(u8 X86EMU_UNUSED(op1)) -{ - u32 srcval; - - START_OF_INSTR(); - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - DECODE_PRINTF("ADC\tEAX,"); - srcval = fetch_long_imm(); - } else { - DECODE_PRINTF("ADC\tAX,"); - srcval = fetch_word_imm(); - } - DECODE_PRINTF2("%x\n", srcval); - TRACE_AND_STEP(); - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - M.x86.R_EAX = adc_long(M.x86.R_EAX, srcval); - } else { - M.x86.R_AX = adc_word(M.x86.R_AX, (u16)srcval); - } - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0x16 -****************************************************************************/ -static void x86emuOp_push_SS(u8 X86EMU_UNUSED(op1)) -{ - START_OF_INSTR(); - DECODE_PRINTF("PUSH\tSS\n"); - TRACE_AND_STEP(); - push_word(M.x86.R_SS); - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0x17 -****************************************************************************/ -static void x86emuOp_pop_SS(u8 X86EMU_UNUSED(op1)) -{ - START_OF_INSTR(); - DECODE_PRINTF("POP\tSS\n"); - TRACE_AND_STEP(); - M.x86.R_SS = pop_word(); - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0x18 -****************************************************************************/ -static void x86emuOp_sbb_byte_RM_R(u8 X86EMU_UNUSED(op1)) -{ - int mod, rl, rh; - u8 *destreg, *srcreg; - uint destoffset; - u8 destval; - - START_OF_INSTR(); - DECODE_PRINTF("SBB\t"); - FETCH_DECODE_MODRM(mod, rh, rl); - switch (mod) { - case 0: - destoffset = decode_rm00_address(rl); - DECODE_PRINTF(","); - destval = fetch_data_byte(destoffset); - srcreg = DECODE_RM_BYTE_REGISTER(rh); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - destval = sbb_byte(destval, *srcreg); - store_data_byte(destoffset, destval); - break; - case 1: - destoffset = decode_rm01_address(rl); - DECODE_PRINTF(","); - destval = fetch_data_byte(destoffset); - srcreg = DECODE_RM_BYTE_REGISTER(rh); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - destval = sbb_byte(destval, *srcreg); - store_data_byte(destoffset, destval); - break; - case 2: - destoffset = decode_rm10_address(rl); - DECODE_PRINTF(","); - destval = fetch_data_byte(destoffset); - srcreg = DECODE_RM_BYTE_REGISTER(rh); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - destval = sbb_byte(destval, *srcreg); - store_data_byte(destoffset, destval); - break; - case 3: /* register to register */ - destreg = DECODE_RM_BYTE_REGISTER(rl); - DECODE_PRINTF(","); - srcreg = DECODE_RM_BYTE_REGISTER(rh); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - *destreg = sbb_byte(*destreg, *srcreg); - break; - } - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0x19 -****************************************************************************/ -static void x86emuOp_sbb_word_RM_R(u8 X86EMU_UNUSED(op1)) -{ - int mod, rl, rh; - uint destoffset; - - START_OF_INSTR(); - DECODE_PRINTF("SBB\t"); - FETCH_DECODE_MODRM(mod, rh, rl); - switch (mod) { - case 0: - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - u32 destval; - u32 *srcreg; - - destoffset = decode_rm00_address(rl); - DECODE_PRINTF(","); - destval = fetch_data_long(destoffset); - srcreg = DECODE_RM_LONG_REGISTER(rh); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - destval = sbb_long(destval, *srcreg); - store_data_long(destoffset, destval); - } else { - u16 destval; - u16 *srcreg; - - destoffset = decode_rm00_address(rl); - DECODE_PRINTF(","); - destval = fetch_data_word(destoffset); - srcreg = DECODE_RM_WORD_REGISTER(rh); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - destval = sbb_word(destval, *srcreg); - store_data_word(destoffset, destval); - } - break; - case 1: - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - u32 destval; - u32 *srcreg; - - destoffset = decode_rm01_address(rl); - DECODE_PRINTF(","); - destval = fetch_data_long(destoffset); - srcreg = DECODE_RM_LONG_REGISTER(rh); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - destval = sbb_long(destval, *srcreg); - store_data_long(destoffset, destval); - } else { - u16 destval; - u16 *srcreg; - - destoffset = decode_rm01_address(rl); - DECODE_PRINTF(","); - destval = fetch_data_word(destoffset); - srcreg = DECODE_RM_WORD_REGISTER(rh); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - destval = sbb_word(destval, *srcreg); - store_data_word(destoffset, destval); - } - break; - case 2: - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - u32 destval; - u32 *srcreg; - - destoffset = decode_rm10_address(rl); - DECODE_PRINTF(","); - destval = fetch_data_long(destoffset); - srcreg = DECODE_RM_LONG_REGISTER(rh); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - destval = sbb_long(destval, *srcreg); - store_data_long(destoffset, destval); - } else { - u16 destval; - u16 *srcreg; - - destoffset = decode_rm10_address(rl); - DECODE_PRINTF(","); - destval = fetch_data_word(destoffset); - srcreg = DECODE_RM_WORD_REGISTER(rh); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - destval = sbb_word(destval, *srcreg); - store_data_word(destoffset, destval); - } - break; - case 3: /* register to register */ - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - u32 *destreg,*srcreg; - - destreg = DECODE_RM_LONG_REGISTER(rl); - DECODE_PRINTF(","); - srcreg = DECODE_RM_LONG_REGISTER(rh); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - *destreg = sbb_long(*destreg, *srcreg); - } else { - u16 *destreg,*srcreg; - - destreg = DECODE_RM_WORD_REGISTER(rl); - DECODE_PRINTF(","); - srcreg = DECODE_RM_WORD_REGISTER(rh); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - *destreg = sbb_word(*destreg, *srcreg); - } - break; - } - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0x1a -****************************************************************************/ -static void x86emuOp_sbb_byte_R_RM(u8 X86EMU_UNUSED(op1)) -{ - int mod, rl, rh; - u8 *destreg, *srcreg; - uint srcoffset; - u8 srcval; - - START_OF_INSTR(); - DECODE_PRINTF("SBB\t"); - FETCH_DECODE_MODRM(mod, rh, rl); - switch (mod) { - case 0: - destreg = DECODE_RM_BYTE_REGISTER(rh); - DECODE_PRINTF(","); - srcoffset = decode_rm00_address(rl); - srcval = fetch_data_byte(srcoffset); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - *destreg = sbb_byte(*destreg, srcval); - break; - case 1: - destreg = DECODE_RM_BYTE_REGISTER(rh); - DECODE_PRINTF(","); - srcoffset = decode_rm01_address(rl); - srcval = fetch_data_byte(srcoffset); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - *destreg = sbb_byte(*destreg, srcval); - break; - case 2: - destreg = DECODE_RM_BYTE_REGISTER(rh); - DECODE_PRINTF(","); - srcoffset = decode_rm10_address(rl); - srcval = fetch_data_byte(srcoffset); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - *destreg = sbb_byte(*destreg, srcval); - break; - case 3: /* register to register */ - destreg = DECODE_RM_BYTE_REGISTER(rh); - DECODE_PRINTF(","); - srcreg = DECODE_RM_BYTE_REGISTER(rl); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - *destreg = sbb_byte(*destreg, *srcreg); - break; - } - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0x1b -****************************************************************************/ -static void x86emuOp_sbb_word_R_RM(u8 X86EMU_UNUSED(op1)) -{ - int mod, rl, rh; - uint srcoffset; - - START_OF_INSTR(); - DECODE_PRINTF("SBB\t"); - FETCH_DECODE_MODRM(mod, rh, rl); - switch (mod) { - case 0: - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - u32 *destreg; - u32 srcval; - - destreg = DECODE_RM_LONG_REGISTER(rh); - DECODE_PRINTF(","); - srcoffset = decode_rm00_address(rl); - srcval = fetch_data_long(srcoffset); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - *destreg = sbb_long(*destreg, srcval); - } else { - u16 *destreg; - u16 srcval; - - destreg = DECODE_RM_WORD_REGISTER(rh); - DECODE_PRINTF(","); - srcoffset = decode_rm00_address(rl); - srcval = fetch_data_word(srcoffset); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - *destreg = sbb_word(*destreg, srcval); - } - break; - case 1: - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - u32 *destreg; - u32 srcval; - - destreg = DECODE_RM_LONG_REGISTER(rh); - DECODE_PRINTF(","); - srcoffset = decode_rm01_address(rl); - srcval = fetch_data_long(srcoffset); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - *destreg = sbb_long(*destreg, srcval); - } else { - u16 *destreg; - u16 srcval; - - destreg = DECODE_RM_WORD_REGISTER(rh); - DECODE_PRINTF(","); - srcoffset = decode_rm01_address(rl); - srcval = fetch_data_word(srcoffset); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - *destreg = sbb_word(*destreg, srcval); - } - break; - case 2: - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - u32 *destreg; - u32 srcval; - - destreg = DECODE_RM_LONG_REGISTER(rh); - DECODE_PRINTF(","); - srcoffset = decode_rm10_address(rl); - srcval = fetch_data_long(srcoffset); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - *destreg = sbb_long(*destreg, srcval); - } else { - u16 *destreg; - u16 srcval; - - destreg = DECODE_RM_WORD_REGISTER(rh); - DECODE_PRINTF(","); - srcoffset = decode_rm10_address(rl); - srcval = fetch_data_word(srcoffset); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - *destreg = sbb_word(*destreg, srcval); - } - break; - case 3: /* register to register */ - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - u32 *destreg,*srcreg; - - destreg = DECODE_RM_LONG_REGISTER(rh); - DECODE_PRINTF(","); - srcreg = DECODE_RM_LONG_REGISTER(rl); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - *destreg = sbb_long(*destreg, *srcreg); - } else { - u16 *destreg,*srcreg; - - destreg = DECODE_RM_WORD_REGISTER(rh); - DECODE_PRINTF(","); - srcreg = DECODE_RM_WORD_REGISTER(rl); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - *destreg = sbb_word(*destreg, *srcreg); - } - break; - } - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0x1c -****************************************************************************/ -static void x86emuOp_sbb_byte_AL_IMM(u8 X86EMU_UNUSED(op1)) -{ - u8 srcval; - - START_OF_INSTR(); - DECODE_PRINTF("SBB\tAL,"); - srcval = fetch_byte_imm(); - DECODE_PRINTF2("%x\n", srcval); - TRACE_AND_STEP(); - M.x86.R_AL = sbb_byte(M.x86.R_AL, srcval); - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0x1d -****************************************************************************/ -static void x86emuOp_sbb_word_AX_IMM(u8 X86EMU_UNUSED(op1)) -{ - u32 srcval; - - START_OF_INSTR(); - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - DECODE_PRINTF("SBB\tEAX,"); - srcval = fetch_long_imm(); - } else { - DECODE_PRINTF("SBB\tAX,"); - srcval = fetch_word_imm(); - } - DECODE_PRINTF2("%x\n", srcval); - TRACE_AND_STEP(); - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - M.x86.R_EAX = sbb_long(M.x86.R_EAX, srcval); - } else { - M.x86.R_AX = sbb_word(M.x86.R_AX, (u16)srcval); - } - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0x1e -****************************************************************************/ -static void x86emuOp_push_DS(u8 X86EMU_UNUSED(op1)) -{ - START_OF_INSTR(); - DECODE_PRINTF("PUSH\tDS\n"); - TRACE_AND_STEP(); - push_word(M.x86.R_DS); - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0x1f -****************************************************************************/ -static void x86emuOp_pop_DS(u8 X86EMU_UNUSED(op1)) -{ - START_OF_INSTR(); - DECODE_PRINTF("POP\tDS\n"); - TRACE_AND_STEP(); - M.x86.R_DS = pop_word(); - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0x20 -****************************************************************************/ -static void x86emuOp_and_byte_RM_R(u8 X86EMU_UNUSED(op1)) -{ - int mod, rl, rh; - u8 *destreg, *srcreg; - uint destoffset; - u8 destval; - - START_OF_INSTR(); - DECODE_PRINTF("AND\t"); - FETCH_DECODE_MODRM(mod, rh, rl); - - switch (mod) { - case 0: - destoffset = decode_rm00_address(rl); - DECODE_PRINTF(","); - destval = fetch_data_byte(destoffset); - srcreg = DECODE_RM_BYTE_REGISTER(rh); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - destval = and_byte(destval, *srcreg); - store_data_byte(destoffset, destval); - break; - - case 1: - destoffset = decode_rm01_address(rl); - DECODE_PRINTF(","); - destval = fetch_data_byte(destoffset); - srcreg = DECODE_RM_BYTE_REGISTER(rh); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - destval = and_byte(destval, *srcreg); - store_data_byte(destoffset, destval); - break; - - case 2: - destoffset = decode_rm10_address(rl); - DECODE_PRINTF(","); - destval = fetch_data_byte(destoffset); - srcreg = DECODE_RM_BYTE_REGISTER(rh); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - destval = and_byte(destval, *srcreg); - store_data_byte(destoffset, destval); - break; - - case 3: /* register to register */ - destreg = DECODE_RM_BYTE_REGISTER(rl); - DECODE_PRINTF(","); - srcreg = DECODE_RM_BYTE_REGISTER(rh); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - *destreg = and_byte(*destreg, *srcreg); - break; - } - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0x21 -****************************************************************************/ -static void x86emuOp_and_word_RM_R(u8 X86EMU_UNUSED(op1)) -{ - int mod, rl, rh; - uint destoffset; - - START_OF_INSTR(); - DECODE_PRINTF("AND\t"); - FETCH_DECODE_MODRM(mod, rh, rl); - switch (mod) { - case 0: - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - u32 destval; - u32 *srcreg; - - destoffset = decode_rm00_address(rl); - DECODE_PRINTF(","); - destval = fetch_data_long(destoffset); - srcreg = DECODE_RM_LONG_REGISTER(rh); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - destval = and_long(destval, *srcreg); - store_data_long(destoffset, destval); - } else { - u16 destval; - u16 *srcreg; - - destoffset = decode_rm00_address(rl); - DECODE_PRINTF(","); - destval = fetch_data_word(destoffset); - srcreg = DECODE_RM_WORD_REGISTER(rh); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - destval = and_word(destval, *srcreg); - store_data_word(destoffset, destval); - } - break; - case 1: - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - u32 destval; - u32 *srcreg; - - destoffset = decode_rm01_address(rl); - DECODE_PRINTF(","); - destval = fetch_data_long(destoffset); - srcreg = DECODE_RM_LONG_REGISTER(rh); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - destval = and_long(destval, *srcreg); - store_data_long(destoffset, destval); - } else { - u16 destval; - u16 *srcreg; - - destoffset = decode_rm01_address(rl); - DECODE_PRINTF(","); - destval = fetch_data_word(destoffset); - srcreg = DECODE_RM_WORD_REGISTER(rh); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - destval = and_word(destval, *srcreg); - store_data_word(destoffset, destval); - } - break; - case 2: - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - u32 destval; - u32 *srcreg; - - destoffset = decode_rm10_address(rl); - DECODE_PRINTF(","); - destval = fetch_data_long(destoffset); - srcreg = DECODE_RM_LONG_REGISTER(rh); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - destval = and_long(destval, *srcreg); - store_data_long(destoffset, destval); - } else { - u16 destval; - u16 *srcreg; - - destoffset = decode_rm10_address(rl); - DECODE_PRINTF(","); - destval = fetch_data_word(destoffset); - srcreg = DECODE_RM_WORD_REGISTER(rh); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - destval = and_word(destval, *srcreg); - store_data_word(destoffset, destval); - } - break; - case 3: /* register to register */ - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - u32 *destreg,*srcreg; - - destreg = DECODE_RM_LONG_REGISTER(rl); - DECODE_PRINTF(","); - srcreg = DECODE_RM_LONG_REGISTER(rh); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - *destreg = and_long(*destreg, *srcreg); - } else { - u16 *destreg,*srcreg; - - destreg = DECODE_RM_WORD_REGISTER(rl); - DECODE_PRINTF(","); - srcreg = DECODE_RM_WORD_REGISTER(rh); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - *destreg = and_word(*destreg, *srcreg); - } - break; - } - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0x22 -****************************************************************************/ -static void x86emuOp_and_byte_R_RM(u8 X86EMU_UNUSED(op1)) -{ - int mod, rl, rh; - u8 *destreg, *srcreg; - uint srcoffset; - u8 srcval; - - START_OF_INSTR(); - DECODE_PRINTF("AND\t"); - FETCH_DECODE_MODRM(mod, rh, rl); - switch (mod) { - case 0: - destreg = DECODE_RM_BYTE_REGISTER(rh); - DECODE_PRINTF(","); - srcoffset = decode_rm00_address(rl); - srcval = fetch_data_byte(srcoffset); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - *destreg = and_byte(*destreg, srcval); - break; - case 1: - destreg = DECODE_RM_BYTE_REGISTER(rh); - DECODE_PRINTF(","); - srcoffset = decode_rm01_address(rl); - srcval = fetch_data_byte(srcoffset); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - *destreg = and_byte(*destreg, srcval); - break; - case 2: - destreg = DECODE_RM_BYTE_REGISTER(rh); - DECODE_PRINTF(","); - srcoffset = decode_rm10_address(rl); - srcval = fetch_data_byte(srcoffset); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - *destreg = and_byte(*destreg, srcval); - break; - case 3: /* register to register */ - destreg = DECODE_RM_BYTE_REGISTER(rh); - DECODE_PRINTF(","); - srcreg = DECODE_RM_BYTE_REGISTER(rl); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - *destreg = and_byte(*destreg, *srcreg); - break; - } - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0x23 -****************************************************************************/ -static void x86emuOp_and_word_R_RM(u8 X86EMU_UNUSED(op1)) -{ - int mod, rl, rh; - uint srcoffset; - - START_OF_INSTR(); - DECODE_PRINTF("AND\t"); - FETCH_DECODE_MODRM(mod, rh, rl); - switch (mod) { - case 0: - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - u32 *destreg; - u32 srcval; - - destreg = DECODE_RM_LONG_REGISTER(rh); - DECODE_PRINTF(","); - srcoffset = decode_rm00_address(rl); - srcval = fetch_data_long(srcoffset); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - *destreg = and_long(*destreg, srcval); - } else { - u16 *destreg; - u16 srcval; - - destreg = DECODE_RM_WORD_REGISTER(rh); - DECODE_PRINTF(","); - srcoffset = decode_rm00_address(rl); - srcval = fetch_data_word(srcoffset); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - *destreg = and_word(*destreg, srcval); - } - break; - case 1: - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - u32 *destreg; - u32 srcval; - - destreg = DECODE_RM_LONG_REGISTER(rh); - DECODE_PRINTF(","); - srcoffset = decode_rm01_address(rl); - srcval = fetch_data_long(srcoffset); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - *destreg = and_long(*destreg, srcval); - break; - } else { - u16 *destreg; - u16 srcval; - - destreg = DECODE_RM_WORD_REGISTER(rh); - DECODE_PRINTF(","); - srcoffset = decode_rm01_address(rl); - srcval = fetch_data_word(srcoffset); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - *destreg = and_word(*destreg, srcval); - break; - } - case 2: - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - u32 *destreg; - u32 srcval; - - destreg = DECODE_RM_LONG_REGISTER(rh); - DECODE_PRINTF(","); - srcoffset = decode_rm10_address(rl); - srcval = fetch_data_long(srcoffset); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - *destreg = and_long(*destreg, srcval); - } else { - u16 *destreg; - u16 srcval; - - destreg = DECODE_RM_WORD_REGISTER(rh); - DECODE_PRINTF(","); - srcoffset = decode_rm10_address(rl); - srcval = fetch_data_word(srcoffset); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - *destreg = and_word(*destreg, srcval); - } - break; - case 3: /* register to register */ - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - u32 *destreg,*srcreg; - - destreg = DECODE_RM_LONG_REGISTER(rh); - DECODE_PRINTF(","); - srcreg = DECODE_RM_LONG_REGISTER(rl); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - *destreg = and_long(*destreg, *srcreg); - } else { - u16 *destreg,*srcreg; - - destreg = DECODE_RM_WORD_REGISTER(rh); - DECODE_PRINTF(","); - srcreg = DECODE_RM_WORD_REGISTER(rl); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - *destreg = and_word(*destreg, *srcreg); - } - break; - } - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0x24 -****************************************************************************/ -static void x86emuOp_and_byte_AL_IMM(u8 X86EMU_UNUSED(op1)) -{ - u8 srcval; - - START_OF_INSTR(); - DECODE_PRINTF("AND\tAL,"); - srcval = fetch_byte_imm(); - DECODE_PRINTF2("%x\n", srcval); - TRACE_AND_STEP(); - M.x86.R_AL = and_byte(M.x86.R_AL, srcval); - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0x25 -****************************************************************************/ -static void x86emuOp_and_word_AX_IMM(u8 X86EMU_UNUSED(op1)) -{ - u32 srcval; - - START_OF_INSTR(); - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - DECODE_PRINTF("AND\tEAX,"); - srcval = fetch_long_imm(); - } else { - DECODE_PRINTF("AND\tAX,"); - srcval = fetch_word_imm(); - } - DECODE_PRINTF2("%x\n", srcval); - TRACE_AND_STEP(); - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - M.x86.R_EAX = and_long(M.x86.R_EAX, srcval); - } else { - M.x86.R_AX = and_word(M.x86.R_AX, (u16)srcval); - } - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0x26 -****************************************************************************/ -static void x86emuOp_segovr_ES(u8 X86EMU_UNUSED(op1)) -{ - START_OF_INSTR(); - DECODE_PRINTF("ES:\n"); - TRACE_AND_STEP(); - M.x86.mode |= SYSMODE_SEGOVR_ES; - /* - * note the lack of DECODE_CLEAR_SEGOVR(r) since, here is one of 4 - * opcode subroutines we do not want to do this. - */ - END_OF_INSTR(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0x27 -****************************************************************************/ -static void x86emuOp_daa(u8 X86EMU_UNUSED(op1)) -{ - START_OF_INSTR(); - DECODE_PRINTF("DAA\n"); - TRACE_AND_STEP(); - M.x86.R_AL = daa_byte(M.x86.R_AL); - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0x28 -****************************************************************************/ -static void x86emuOp_sub_byte_RM_R(u8 X86EMU_UNUSED(op1)) -{ - int mod, rl, rh; - u8 *destreg, *srcreg; - uint destoffset; - u8 destval; - - START_OF_INSTR(); - DECODE_PRINTF("SUB\t"); - FETCH_DECODE_MODRM(mod, rh, rl); - switch (mod) { - case 0: - destoffset = decode_rm00_address(rl); - DECODE_PRINTF(","); - destval = fetch_data_byte(destoffset); - srcreg = DECODE_RM_BYTE_REGISTER(rh); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - destval = sub_byte(destval, *srcreg); - store_data_byte(destoffset, destval); - break; - case 1: - destoffset = decode_rm01_address(rl); - DECODE_PRINTF(","); - destval = fetch_data_byte(destoffset); - srcreg = DECODE_RM_BYTE_REGISTER(rh); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - destval = sub_byte(destval, *srcreg); - store_data_byte(destoffset, destval); - break; - case 2: - destoffset = decode_rm10_address(rl); - DECODE_PRINTF(","); - destval = fetch_data_byte(destoffset); - srcreg = DECODE_RM_BYTE_REGISTER(rh); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - destval = sub_byte(destval, *srcreg); - store_data_byte(destoffset, destval); - break; - case 3: /* register to register */ - destreg = DECODE_RM_BYTE_REGISTER(rl); - DECODE_PRINTF(","); - srcreg = DECODE_RM_BYTE_REGISTER(rh); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - *destreg = sub_byte(*destreg, *srcreg); - break; - } - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0x29 -****************************************************************************/ -static void x86emuOp_sub_word_RM_R(u8 X86EMU_UNUSED(op1)) -{ - int mod, rl, rh; - uint destoffset; - - START_OF_INSTR(); - DECODE_PRINTF("SUB\t"); - FETCH_DECODE_MODRM(mod, rh, rl); - switch (mod) { - case 0: - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - u32 destval; - u32 *srcreg; - - destoffset = decode_rm00_address(rl); - DECODE_PRINTF(","); - destval = fetch_data_long(destoffset); - srcreg = DECODE_RM_LONG_REGISTER(rh); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - destval = sub_long(destval, *srcreg); - store_data_long(destoffset, destval); - } else { - u16 destval; - u16 *srcreg; - - destoffset = decode_rm00_address(rl); - DECODE_PRINTF(","); - destval = fetch_data_word(destoffset); - srcreg = DECODE_RM_WORD_REGISTER(rh); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - destval = sub_word(destval, *srcreg); - store_data_word(destoffset, destval); - } - break; - case 1: - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - u32 destval; - u32 *srcreg; - - destoffset = decode_rm01_address(rl); - DECODE_PRINTF(","); - destval = fetch_data_long(destoffset); - srcreg = DECODE_RM_LONG_REGISTER(rh); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - destval = sub_long(destval, *srcreg); - store_data_long(destoffset, destval); - } else { - u16 destval; - u16 *srcreg; - - destoffset = decode_rm01_address(rl); - DECODE_PRINTF(","); - destval = fetch_data_word(destoffset); - srcreg = DECODE_RM_WORD_REGISTER(rh); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - destval = sub_word(destval, *srcreg); - store_data_word(destoffset, destval); - } - break; - case 2: - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - u32 destval; - u32 *srcreg; - - destoffset = decode_rm10_address(rl); - DECODE_PRINTF(","); - destval = fetch_data_long(destoffset); - srcreg = DECODE_RM_LONG_REGISTER(rh); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - destval = sub_long(destval, *srcreg); - store_data_long(destoffset, destval); - } else { - u16 destval; - u16 *srcreg; - - destoffset = decode_rm10_address(rl); - DECODE_PRINTF(","); - destval = fetch_data_word(destoffset); - srcreg = DECODE_RM_WORD_REGISTER(rh); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - destval = sub_word(destval, *srcreg); - store_data_word(destoffset, destval); - } - break; - case 3: /* register to register */ - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - u32 *destreg,*srcreg; - - destreg = DECODE_RM_LONG_REGISTER(rl); - DECODE_PRINTF(","); - srcreg = DECODE_RM_LONG_REGISTER(rh); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - *destreg = sub_long(*destreg, *srcreg); - } else { - u16 *destreg,*srcreg; - - destreg = DECODE_RM_WORD_REGISTER(rl); - DECODE_PRINTF(","); - srcreg = DECODE_RM_WORD_REGISTER(rh); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - *destreg = sub_word(*destreg, *srcreg); - } - break; - } - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0x2a -****************************************************************************/ -static void x86emuOp_sub_byte_R_RM(u8 X86EMU_UNUSED(op1)) -{ - int mod, rl, rh; - u8 *destreg, *srcreg; - uint srcoffset; - u8 srcval; - - START_OF_INSTR(); - DECODE_PRINTF("SUB\t"); - FETCH_DECODE_MODRM(mod, rh, rl); - switch (mod) { - case 0: - destreg = DECODE_RM_BYTE_REGISTER(rh); - DECODE_PRINTF(","); - srcoffset = decode_rm00_address(rl); - srcval = fetch_data_byte(srcoffset); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - *destreg = sub_byte(*destreg, srcval); - break; - case 1: - destreg = DECODE_RM_BYTE_REGISTER(rh); - DECODE_PRINTF(","); - srcoffset = decode_rm01_address(rl); - srcval = fetch_data_byte(srcoffset); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - *destreg = sub_byte(*destreg, srcval); - break; - case 2: - destreg = DECODE_RM_BYTE_REGISTER(rh); - DECODE_PRINTF(","); - srcoffset = decode_rm10_address(rl); - srcval = fetch_data_byte(srcoffset); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - *destreg = sub_byte(*destreg, srcval); - break; - case 3: /* register to register */ - destreg = DECODE_RM_BYTE_REGISTER(rh); - DECODE_PRINTF(","); - srcreg = DECODE_RM_BYTE_REGISTER(rl); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - *destreg = sub_byte(*destreg, *srcreg); - break; - } - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0x2b -****************************************************************************/ -static void x86emuOp_sub_word_R_RM(u8 X86EMU_UNUSED(op1)) -{ - int mod, rl, rh; - uint srcoffset; - - START_OF_INSTR(); - DECODE_PRINTF("SUB\t"); - FETCH_DECODE_MODRM(mod, rh, rl); - switch (mod) { - case 0: - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - u32 *destreg; - u32 srcval; - - destreg = DECODE_RM_LONG_REGISTER(rh); - DECODE_PRINTF(","); - srcoffset = decode_rm00_address(rl); - srcval = fetch_data_long(srcoffset); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - *destreg = sub_long(*destreg, srcval); - } else { - u16 *destreg; - u16 srcval; - - destreg = DECODE_RM_WORD_REGISTER(rh); - DECODE_PRINTF(","); - srcoffset = decode_rm00_address(rl); - srcval = fetch_data_word(srcoffset); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - *destreg = sub_word(*destreg, srcval); - } - break; - case 1: - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - u32 *destreg; - u32 srcval; - - destreg = DECODE_RM_LONG_REGISTER(rh); - DECODE_PRINTF(","); - srcoffset = decode_rm01_address(rl); - srcval = fetch_data_long(srcoffset); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - *destreg = sub_long(*destreg, srcval); - } else { - u16 *destreg; - u16 srcval; - - destreg = DECODE_RM_WORD_REGISTER(rh); - DECODE_PRINTF(","); - srcoffset = decode_rm01_address(rl); - srcval = fetch_data_word(srcoffset); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - *destreg = sub_word(*destreg, srcval); - } - break; - case 2: - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - u32 *destreg; - u32 srcval; - - destreg = DECODE_RM_LONG_REGISTER(rh); - DECODE_PRINTF(","); - srcoffset = decode_rm10_address(rl); - srcval = fetch_data_long(srcoffset); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - *destreg = sub_long(*destreg, srcval); - } else { - u16 *destreg; - u16 srcval; - - destreg = DECODE_RM_WORD_REGISTER(rh); - DECODE_PRINTF(","); - srcoffset = decode_rm10_address(rl); - srcval = fetch_data_word(srcoffset); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - *destreg = sub_word(*destreg, srcval); - } - break; - case 3: /* register to register */ - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - u32 *destreg,*srcreg; - - destreg = DECODE_RM_LONG_REGISTER(rh); - DECODE_PRINTF(","); - srcreg = DECODE_RM_LONG_REGISTER(rl); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - *destreg = sub_long(*destreg, *srcreg); - } else { - u16 *destreg,*srcreg; - - destreg = DECODE_RM_WORD_REGISTER(rh); - DECODE_PRINTF(","); - srcreg = DECODE_RM_WORD_REGISTER(rl); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - *destreg = sub_word(*destreg, *srcreg); - } - break; - } - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0x2c -****************************************************************************/ -static void x86emuOp_sub_byte_AL_IMM(u8 X86EMU_UNUSED(op1)) -{ - u8 srcval; - - START_OF_INSTR(); - DECODE_PRINTF("SUB\tAL,"); - srcval = fetch_byte_imm(); - DECODE_PRINTF2("%x\n", srcval); - TRACE_AND_STEP(); - M.x86.R_AL = sub_byte(M.x86.R_AL, srcval); - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0x2d -****************************************************************************/ -static void x86emuOp_sub_word_AX_IMM(u8 X86EMU_UNUSED(op1)) -{ - u32 srcval; - - START_OF_INSTR(); - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - DECODE_PRINTF("SUB\tEAX,"); - srcval = fetch_long_imm(); - } else { - DECODE_PRINTF("SUB\tAX,"); - srcval = fetch_word_imm(); - } - DECODE_PRINTF2("%x\n", srcval); - TRACE_AND_STEP(); - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - M.x86.R_EAX = sub_long(M.x86.R_EAX, srcval); - } else { - M.x86.R_AX = sub_word(M.x86.R_AX, (u16)srcval); - } - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0x2e -****************************************************************************/ -static void x86emuOp_segovr_CS(u8 X86EMU_UNUSED(op1)) -{ - START_OF_INSTR(); - DECODE_PRINTF("CS:\n"); - TRACE_AND_STEP(); - M.x86.mode |= SYSMODE_SEGOVR_CS; - /* note no DECODE_CLEAR_SEGOVR here. */ - END_OF_INSTR(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0x2f -****************************************************************************/ -static void x86emuOp_das(u8 X86EMU_UNUSED(op1)) -{ - START_OF_INSTR(); - DECODE_PRINTF("DAS\n"); - TRACE_AND_STEP(); - M.x86.R_AL = das_byte(M.x86.R_AL); - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0x30 -****************************************************************************/ -static void x86emuOp_xor_byte_RM_R(u8 X86EMU_UNUSED(op1)) -{ - int mod, rl, rh; - u8 *destreg, *srcreg; - uint destoffset; - u8 destval; - - START_OF_INSTR(); - DECODE_PRINTF("XOR\t"); - FETCH_DECODE_MODRM(mod, rh, rl); - switch (mod) { - case 0: - destoffset = decode_rm00_address(rl); - DECODE_PRINTF(","); - destval = fetch_data_byte(destoffset); - srcreg = DECODE_RM_BYTE_REGISTER(rh); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - destval = xor_byte(destval, *srcreg); - store_data_byte(destoffset, destval); - break; - case 1: - destoffset = decode_rm01_address(rl); - DECODE_PRINTF(","); - destval = fetch_data_byte(destoffset); - srcreg = DECODE_RM_BYTE_REGISTER(rh); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - destval = xor_byte(destval, *srcreg); - store_data_byte(destoffset, destval); - break; - case 2: - destoffset = decode_rm10_address(rl); - DECODE_PRINTF(","); - destval = fetch_data_byte(destoffset); - srcreg = DECODE_RM_BYTE_REGISTER(rh); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - destval = xor_byte(destval, *srcreg); - store_data_byte(destoffset, destval); - break; - case 3: /* register to register */ - destreg = DECODE_RM_BYTE_REGISTER(rl); - DECODE_PRINTF(","); - srcreg = DECODE_RM_BYTE_REGISTER(rh); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - *destreg = xor_byte(*destreg, *srcreg); - break; - } - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0x31 -****************************************************************************/ -static void x86emuOp_xor_word_RM_R(u8 X86EMU_UNUSED(op1)) -{ - int mod, rl, rh; - uint destoffset; - - START_OF_INSTR(); - DECODE_PRINTF("XOR\t"); - FETCH_DECODE_MODRM(mod, rh, rl); - switch (mod) { - case 0: - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - u32 destval; - u32 *srcreg; - - destoffset = decode_rm00_address(rl); - DECODE_PRINTF(","); - destval = fetch_data_long(destoffset); - srcreg = DECODE_RM_LONG_REGISTER(rh); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - destval = xor_long(destval, *srcreg); - store_data_long(destoffset, destval); - } else { - u16 destval; - u16 *srcreg; - - destoffset = decode_rm00_address(rl); - DECODE_PRINTF(","); - destval = fetch_data_word(destoffset); - srcreg = DECODE_RM_WORD_REGISTER(rh); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - destval = xor_word(destval, *srcreg); - store_data_word(destoffset, destval); - } - break; - case 1: - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - u32 destval; - u32 *srcreg; - - destoffset = decode_rm01_address(rl); - DECODE_PRINTF(","); - destval = fetch_data_long(destoffset); - srcreg = DECODE_RM_LONG_REGISTER(rh); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - destval = xor_long(destval, *srcreg); - store_data_long(destoffset, destval); - } else { - u16 destval; - u16 *srcreg; - - destoffset = decode_rm01_address(rl); - DECODE_PRINTF(","); - destval = fetch_data_word(destoffset); - srcreg = DECODE_RM_WORD_REGISTER(rh); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - destval = xor_word(destval, *srcreg); - store_data_word(destoffset, destval); - } - break; - case 2: - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - u32 destval; - u32 *srcreg; - - destoffset = decode_rm10_address(rl); - DECODE_PRINTF(","); - destval = fetch_data_long(destoffset); - srcreg = DECODE_RM_LONG_REGISTER(rh); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - destval = xor_long(destval, *srcreg); - store_data_long(destoffset, destval); - } else { - u16 destval; - u16 *srcreg; - - destoffset = decode_rm10_address(rl); - DECODE_PRINTF(","); - destval = fetch_data_word(destoffset); - srcreg = DECODE_RM_WORD_REGISTER(rh); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - destval = xor_word(destval, *srcreg); - store_data_word(destoffset, destval); - } - break; - case 3: /* register to register */ - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - u32 *destreg,*srcreg; - - destreg = DECODE_RM_LONG_REGISTER(rl); - DECODE_PRINTF(","); - srcreg = DECODE_RM_LONG_REGISTER(rh); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - *destreg = xor_long(*destreg, *srcreg); - } else { - u16 *destreg,*srcreg; - - destreg = DECODE_RM_WORD_REGISTER(rl); - DECODE_PRINTF(","); - srcreg = DECODE_RM_WORD_REGISTER(rh); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - *destreg = xor_word(*destreg, *srcreg); - } - break; - } - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0x32 -****************************************************************************/ -static void x86emuOp_xor_byte_R_RM(u8 X86EMU_UNUSED(op1)) -{ - int mod, rl, rh; - u8 *destreg, *srcreg; - uint srcoffset; - u8 srcval; - - START_OF_INSTR(); - DECODE_PRINTF("XOR\t"); - FETCH_DECODE_MODRM(mod, rh, rl); - switch (mod) { - case 0: - destreg = DECODE_RM_BYTE_REGISTER(rh); - DECODE_PRINTF(","); - srcoffset = decode_rm00_address(rl); - srcval = fetch_data_byte(srcoffset); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - *destreg = xor_byte(*destreg, srcval); - break; - case 1: - destreg = DECODE_RM_BYTE_REGISTER(rh); - DECODE_PRINTF(","); - srcoffset = decode_rm01_address(rl); - srcval = fetch_data_byte(srcoffset); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - *destreg = xor_byte(*destreg, srcval); - break; - case 2: - destreg = DECODE_RM_BYTE_REGISTER(rh); - DECODE_PRINTF(","); - srcoffset = decode_rm10_address(rl); - srcval = fetch_data_byte(srcoffset); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - *destreg = xor_byte(*destreg, srcval); - break; - case 3: /* register to register */ - destreg = DECODE_RM_BYTE_REGISTER(rh); - DECODE_PRINTF(","); - srcreg = DECODE_RM_BYTE_REGISTER(rl); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - *destreg = xor_byte(*destreg, *srcreg); - break; - } - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0x33 -****************************************************************************/ -static void x86emuOp_xor_word_R_RM(u8 X86EMU_UNUSED(op1)) -{ - int mod, rl, rh; - uint srcoffset; - - START_OF_INSTR(); - DECODE_PRINTF("XOR\t"); - FETCH_DECODE_MODRM(mod, rh, rl); - switch (mod) { - case 0: - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - u32 *destreg; - u32 srcval; - - destreg = DECODE_RM_LONG_REGISTER(rh); - DECODE_PRINTF(","); - srcoffset = decode_rm00_address(rl); - srcval = fetch_data_long(srcoffset); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - *destreg = xor_long(*destreg, srcval); - } else { - u16 *destreg; - u16 srcval; - - destreg = DECODE_RM_WORD_REGISTER(rh); - DECODE_PRINTF(","); - srcoffset = decode_rm00_address(rl); - srcval = fetch_data_word(srcoffset); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - *destreg = xor_word(*destreg, srcval); - } - break; - case 1: - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - u32 *destreg; - u32 srcval; - - destreg = DECODE_RM_LONG_REGISTER(rh); - DECODE_PRINTF(","); - srcoffset = decode_rm01_address(rl); - srcval = fetch_data_long(srcoffset); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - *destreg = xor_long(*destreg, srcval); - } else { - u16 *destreg; - u16 srcval; - - destreg = DECODE_RM_WORD_REGISTER(rh); - DECODE_PRINTF(","); - srcoffset = decode_rm01_address(rl); - srcval = fetch_data_word(srcoffset); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - *destreg = xor_word(*destreg, srcval); - } - break; - case 2: - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - u32 *destreg; - u32 srcval; - - destreg = DECODE_RM_LONG_REGISTER(rh); - DECODE_PRINTF(","); - srcoffset = decode_rm10_address(rl); - srcval = fetch_data_long(srcoffset); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - *destreg = xor_long(*destreg, srcval); - } else { - u16 *destreg; - u16 srcval; - - destreg = DECODE_RM_WORD_REGISTER(rh); - DECODE_PRINTF(","); - srcoffset = decode_rm10_address(rl); - srcval = fetch_data_word(srcoffset); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - *destreg = xor_word(*destreg, srcval); - } - break; - case 3: /* register to register */ - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - u32 *destreg,*srcreg; - - destreg = DECODE_RM_LONG_REGISTER(rh); - DECODE_PRINTF(","); - srcreg = DECODE_RM_LONG_REGISTER(rl); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - *destreg = xor_long(*destreg, *srcreg); - } else { - u16 *destreg,*srcreg; - - destreg = DECODE_RM_WORD_REGISTER(rh); - DECODE_PRINTF(","); - srcreg = DECODE_RM_WORD_REGISTER(rl); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - *destreg = xor_word(*destreg, *srcreg); - } - break; - } - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0x34 -****************************************************************************/ -static void x86emuOp_xor_byte_AL_IMM(u8 X86EMU_UNUSED(op1)) -{ - u8 srcval; - - START_OF_INSTR(); - DECODE_PRINTF("XOR\tAL,"); - srcval = fetch_byte_imm(); - DECODE_PRINTF2("%x\n", srcval); - TRACE_AND_STEP(); - M.x86.R_AL = xor_byte(M.x86.R_AL, srcval); - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0x35 -****************************************************************************/ -static void x86emuOp_xor_word_AX_IMM(u8 X86EMU_UNUSED(op1)) -{ - u32 srcval; - - START_OF_INSTR(); - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - DECODE_PRINTF("XOR\tEAX,"); - srcval = fetch_long_imm(); - } else { - DECODE_PRINTF("XOR\tAX,"); - srcval = fetch_word_imm(); - } - DECODE_PRINTF2("%x\n", srcval); - TRACE_AND_STEP(); - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - M.x86.R_EAX = xor_long(M.x86.R_EAX, srcval); - } else { - M.x86.R_AX = xor_word(M.x86.R_AX, (u16)srcval); - } - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0x36 -****************************************************************************/ -static void x86emuOp_segovr_SS(u8 X86EMU_UNUSED(op1)) -{ - START_OF_INSTR(); - DECODE_PRINTF("SS:\n"); - TRACE_AND_STEP(); - M.x86.mode |= SYSMODE_SEGOVR_SS; - /* no DECODE_CLEAR_SEGOVR ! */ - END_OF_INSTR(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0x37 -****************************************************************************/ -static void x86emuOp_aaa(u8 X86EMU_UNUSED(op1)) -{ - START_OF_INSTR(); - DECODE_PRINTF("AAA\n"); - TRACE_AND_STEP(); - M.x86.R_AX = aaa_word(M.x86.R_AX); - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0x38 -****************************************************************************/ -static void x86emuOp_cmp_byte_RM_R(u8 X86EMU_UNUSED(op1)) -{ - int mod, rl, rh; - uint destoffset; - u8 *destreg, *srcreg; - u8 destval; - - START_OF_INSTR(); - DECODE_PRINTF("CMP\t"); - FETCH_DECODE_MODRM(mod, rh, rl); - switch (mod) { - case 0: - destoffset = decode_rm00_address(rl); - DECODE_PRINTF(","); - destval = fetch_data_byte(destoffset); - srcreg = DECODE_RM_BYTE_REGISTER(rh); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - cmp_byte(destval, *srcreg); - break; - case 1: - destoffset = decode_rm01_address(rl); - DECODE_PRINTF(","); - destval = fetch_data_byte(destoffset); - srcreg = DECODE_RM_BYTE_REGISTER(rh); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - cmp_byte(destval, *srcreg); - break; - case 2: - destoffset = decode_rm10_address(rl); - DECODE_PRINTF(","); - destval = fetch_data_byte(destoffset); - srcreg = DECODE_RM_BYTE_REGISTER(rh); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - cmp_byte(destval, *srcreg); - break; - case 3: /* register to register */ - destreg = DECODE_RM_BYTE_REGISTER(rl); - DECODE_PRINTF(","); - srcreg = DECODE_RM_BYTE_REGISTER(rh); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - cmp_byte(*destreg, *srcreg); - break; - } - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0x39 -****************************************************************************/ -static void x86emuOp_cmp_word_RM_R(u8 X86EMU_UNUSED(op1)) -{ - int mod, rl, rh; - uint destoffset; - - START_OF_INSTR(); - DECODE_PRINTF("CMP\t"); - FETCH_DECODE_MODRM(mod, rh, rl); - switch (mod) { - case 0: - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - u32 destval; - u32 *srcreg; - - destoffset = decode_rm00_address(rl); - DECODE_PRINTF(","); - destval = fetch_data_long(destoffset); - srcreg = DECODE_RM_LONG_REGISTER(rh); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - cmp_long(destval, *srcreg); - } else { - u16 destval; - u16 *srcreg; - - destoffset = decode_rm00_address(rl); - DECODE_PRINTF(","); - destval = fetch_data_word(destoffset); - srcreg = DECODE_RM_WORD_REGISTER(rh); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - cmp_word(destval, *srcreg); - } - break; - case 1: - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - u32 destval; - u32 *srcreg; - - destoffset = decode_rm01_address(rl); - DECODE_PRINTF(","); - destval = fetch_data_long(destoffset); - srcreg = DECODE_RM_LONG_REGISTER(rh); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - cmp_long(destval, *srcreg); - } else { - u16 destval; - u16 *srcreg; - - destoffset = decode_rm01_address(rl); - DECODE_PRINTF(","); - destval = fetch_data_word(destoffset); - srcreg = DECODE_RM_WORD_REGISTER(rh); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - cmp_word(destval, *srcreg); - } - break; - case 2: - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - u32 destval; - u32 *srcreg; - - destoffset = decode_rm10_address(rl); - DECODE_PRINTF(","); - destval = fetch_data_long(destoffset); - srcreg = DECODE_RM_LONG_REGISTER(rh); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - cmp_long(destval, *srcreg); - } else { - u16 destval; - u16 *srcreg; - - destoffset = decode_rm10_address(rl); - DECODE_PRINTF(","); - destval = fetch_data_word(destoffset); - srcreg = DECODE_RM_WORD_REGISTER(rh); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - cmp_word(destval, *srcreg); - } - break; - case 3: /* register to register */ - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - u32 *destreg,*srcreg; - - destreg = DECODE_RM_LONG_REGISTER(rl); - DECODE_PRINTF(","); - srcreg = DECODE_RM_LONG_REGISTER(rh); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - cmp_long(*destreg, *srcreg); - } else { - u16 *destreg,*srcreg; - - destreg = DECODE_RM_WORD_REGISTER(rl); - DECODE_PRINTF(","); - srcreg = DECODE_RM_WORD_REGISTER(rh); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - cmp_word(*destreg, *srcreg); - } - break; - } - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0x3a -****************************************************************************/ -static void x86emuOp_cmp_byte_R_RM(u8 X86EMU_UNUSED(op1)) -{ - int mod, rl, rh; - u8 *destreg, *srcreg; - uint srcoffset; - u8 srcval; - - START_OF_INSTR(); - DECODE_PRINTF("CMP\t"); - FETCH_DECODE_MODRM(mod, rh, rl); - switch (mod) { - case 0: - destreg = DECODE_RM_BYTE_REGISTER(rh); - DECODE_PRINTF(","); - srcoffset = decode_rm00_address(rl); - srcval = fetch_data_byte(srcoffset); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - cmp_byte(*destreg, srcval); - break; - case 1: - destreg = DECODE_RM_BYTE_REGISTER(rh); - DECODE_PRINTF(","); - srcoffset = decode_rm01_address(rl); - srcval = fetch_data_byte(srcoffset); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - cmp_byte(*destreg, srcval); - break; - case 2: - destreg = DECODE_RM_BYTE_REGISTER(rh); - DECODE_PRINTF(","); - srcoffset = decode_rm10_address(rl); - srcval = fetch_data_byte(srcoffset); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - cmp_byte(*destreg, srcval); - break; - case 3: /* register to register */ - destreg = DECODE_RM_BYTE_REGISTER(rh); - DECODE_PRINTF(","); - srcreg = DECODE_RM_BYTE_REGISTER(rl); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - cmp_byte(*destreg, *srcreg); - break; - } - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0x3b -****************************************************************************/ -static void x86emuOp_cmp_word_R_RM(u8 X86EMU_UNUSED(op1)) -{ - int mod, rl, rh; - uint srcoffset; - - START_OF_INSTR(); - DECODE_PRINTF("CMP\t"); - FETCH_DECODE_MODRM(mod, rh, rl); - switch (mod) { - case 0: - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - u32 *destreg; - u32 srcval; - - destreg = DECODE_RM_LONG_REGISTER(rh); - DECODE_PRINTF(","); - srcoffset = decode_rm00_address(rl); - srcval = fetch_data_long(srcoffset); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - cmp_long(*destreg, srcval); - } else { - u16 *destreg; - u16 srcval; - - destreg = DECODE_RM_WORD_REGISTER(rh); - DECODE_PRINTF(","); - srcoffset = decode_rm00_address(rl); - srcval = fetch_data_word(srcoffset); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - cmp_word(*destreg, srcval); - } - break; - case 1: - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - u32 *destreg; - u32 srcval; - - destreg = DECODE_RM_LONG_REGISTER(rh); - DECODE_PRINTF(","); - srcoffset = decode_rm01_address(rl); - srcval = fetch_data_long(srcoffset); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - cmp_long(*destreg, srcval); - } else { - u16 *destreg; - u16 srcval; - - destreg = DECODE_RM_WORD_REGISTER(rh); - DECODE_PRINTF(","); - srcoffset = decode_rm01_address(rl); - srcval = fetch_data_word(srcoffset); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - cmp_word(*destreg, srcval); - } - break; - case 2: - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - u32 *destreg; - u32 srcval; - - destreg = DECODE_RM_LONG_REGISTER(rh); - DECODE_PRINTF(","); - srcoffset = decode_rm10_address(rl); - srcval = fetch_data_long(srcoffset); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - cmp_long(*destreg, srcval); - } else { - u16 *destreg; - u16 srcval; - - destreg = DECODE_RM_WORD_REGISTER(rh); - DECODE_PRINTF(","); - srcoffset = decode_rm10_address(rl); - srcval = fetch_data_word(srcoffset); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - cmp_word(*destreg, srcval); - } - break; - case 3: /* register to register */ - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - u32 *destreg,*srcreg; - - destreg = DECODE_RM_LONG_REGISTER(rh); - DECODE_PRINTF(","); - srcreg = DECODE_RM_LONG_REGISTER(rl); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - cmp_long(*destreg, *srcreg); - } else { - u16 *destreg,*srcreg; - - destreg = DECODE_RM_WORD_REGISTER(rh); - DECODE_PRINTF(","); - srcreg = DECODE_RM_WORD_REGISTER(rl); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - cmp_word(*destreg, *srcreg); - } - break; - } - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0x3c -****************************************************************************/ -static void x86emuOp_cmp_byte_AL_IMM(u8 X86EMU_UNUSED(op1)) -{ - u8 srcval; - - START_OF_INSTR(); - DECODE_PRINTF("CMP\tAL,"); - srcval = fetch_byte_imm(); - DECODE_PRINTF2("%x\n", srcval); - TRACE_AND_STEP(); - cmp_byte(M.x86.R_AL, srcval); - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0x3d -****************************************************************************/ -static void x86emuOp_cmp_word_AX_IMM(u8 X86EMU_UNUSED(op1)) -{ - u32 srcval; - - START_OF_INSTR(); - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - DECODE_PRINTF("CMP\tEAX,"); - srcval = fetch_long_imm(); - } else { - DECODE_PRINTF("CMP\tAX,"); - srcval = fetch_word_imm(); - } - DECODE_PRINTF2("%x\n", srcval); - TRACE_AND_STEP(); - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - cmp_long(M.x86.R_EAX, srcval); - } else { - cmp_word(M.x86.R_AX, (u16)srcval); - } - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0x3e -****************************************************************************/ -static void x86emuOp_segovr_DS(u8 X86EMU_UNUSED(op1)) -{ - START_OF_INSTR(); - DECODE_PRINTF("DS:\n"); - TRACE_AND_STEP(); - M.x86.mode |= SYSMODE_SEGOVR_DS; - /* NO DECODE_CLEAR_SEGOVR! */ - END_OF_INSTR(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0x3f -****************************************************************************/ -static void x86emuOp_aas(u8 X86EMU_UNUSED(op1)) -{ - START_OF_INSTR(); - DECODE_PRINTF("AAS\n"); - TRACE_AND_STEP(); - M.x86.R_AX = aas_word(M.x86.R_AX); - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0x40 -****************************************************************************/ -static void x86emuOp_inc_AX(u8 X86EMU_UNUSED(op1)) -{ - START_OF_INSTR(); - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - DECODE_PRINTF("INC\tEAX\n"); - } else { - DECODE_PRINTF("INC\tAX\n"); - } - TRACE_AND_STEP(); - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - M.x86.R_EAX = inc_long(M.x86.R_EAX); - } else { - M.x86.R_AX = inc_word(M.x86.R_AX); - } - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0x41 -****************************************************************************/ -static void x86emuOp_inc_CX(u8 X86EMU_UNUSED(op1)) -{ - START_OF_INSTR(); - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - DECODE_PRINTF("INC\tECX\n"); - } else { - DECODE_PRINTF("INC\tCX\n"); - } - TRACE_AND_STEP(); - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - M.x86.R_ECX = inc_long(M.x86.R_ECX); - } else { - M.x86.R_CX = inc_word(M.x86.R_CX); - } - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0x42 -****************************************************************************/ -static void x86emuOp_inc_DX(u8 X86EMU_UNUSED(op1)) -{ - START_OF_INSTR(); - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - DECODE_PRINTF("INC\tEDX\n"); - } else { - DECODE_PRINTF("INC\tDX\n"); - } - TRACE_AND_STEP(); - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - M.x86.R_EDX = inc_long(M.x86.R_EDX); - } else { - M.x86.R_DX = inc_word(M.x86.R_DX); - } - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0x43 -****************************************************************************/ -static void x86emuOp_inc_BX(u8 X86EMU_UNUSED(op1)) -{ - START_OF_INSTR(); - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - DECODE_PRINTF("INC\tEBX\n"); - } else { - DECODE_PRINTF("INC\tBX\n"); - } - TRACE_AND_STEP(); - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - M.x86.R_EBX = inc_long(M.x86.R_EBX); - } else { - M.x86.R_BX = inc_word(M.x86.R_BX); - } - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0x44 -****************************************************************************/ -static void x86emuOp_inc_SP(u8 X86EMU_UNUSED(op1)) -{ - START_OF_INSTR(); - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - DECODE_PRINTF("INC\tESP\n"); - } else { - DECODE_PRINTF("INC\tSP\n"); - } - TRACE_AND_STEP(); - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - M.x86.R_ESP = inc_long(M.x86.R_ESP); - } else { - M.x86.R_SP = inc_word(M.x86.R_SP); - } - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0x45 -****************************************************************************/ -static void x86emuOp_inc_BP(u8 X86EMU_UNUSED(op1)) -{ - START_OF_INSTR(); - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - DECODE_PRINTF("INC\tEBP\n"); - } else { - DECODE_PRINTF("INC\tBP\n"); - } - TRACE_AND_STEP(); - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - M.x86.R_EBP = inc_long(M.x86.R_EBP); - } else { - M.x86.R_BP = inc_word(M.x86.R_BP); - } - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0x46 -****************************************************************************/ -static void x86emuOp_inc_SI(u8 X86EMU_UNUSED(op1)) -{ - START_OF_INSTR(); - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - DECODE_PRINTF("INC\tESI\n"); - } else { - DECODE_PRINTF("INC\tSI\n"); - } - TRACE_AND_STEP(); - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - M.x86.R_ESI = inc_long(M.x86.R_ESI); - } else { - M.x86.R_SI = inc_word(M.x86.R_SI); - } - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0x47 -****************************************************************************/ -static void x86emuOp_inc_DI(u8 X86EMU_UNUSED(op1)) -{ - START_OF_INSTR(); - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - DECODE_PRINTF("INC\tEDI\n"); - } else { - DECODE_PRINTF("INC\tDI\n"); - } - TRACE_AND_STEP(); - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - M.x86.R_EDI = inc_long(M.x86.R_EDI); - } else { - M.x86.R_DI = inc_word(M.x86.R_DI); - } - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0x48 -****************************************************************************/ -static void x86emuOp_dec_AX(u8 X86EMU_UNUSED(op1)) -{ - START_OF_INSTR(); - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - DECODE_PRINTF("DEC\tEAX\n"); - } else { - DECODE_PRINTF("DEC\tAX\n"); - } - TRACE_AND_STEP(); - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - M.x86.R_EAX = dec_long(M.x86.R_EAX); - } else { - M.x86.R_AX = dec_word(M.x86.R_AX); - } - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0x49 -****************************************************************************/ -static void x86emuOp_dec_CX(u8 X86EMU_UNUSED(op1)) -{ - START_OF_INSTR(); - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - DECODE_PRINTF("DEC\tECX\n"); - } else { - DECODE_PRINTF("DEC\tCX\n"); - } - TRACE_AND_STEP(); - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - M.x86.R_ECX = dec_long(M.x86.R_ECX); - } else { - M.x86.R_CX = dec_word(M.x86.R_CX); - } - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0x4a -****************************************************************************/ -static void x86emuOp_dec_DX(u8 X86EMU_UNUSED(op1)) -{ - START_OF_INSTR(); - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - DECODE_PRINTF("DEC\tEDX\n"); - } else { - DECODE_PRINTF("DEC\tDX\n"); - } - TRACE_AND_STEP(); - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - M.x86.R_EDX = dec_long(M.x86.R_EDX); - } else { - M.x86.R_DX = dec_word(M.x86.R_DX); - } - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0x4b -****************************************************************************/ -static void x86emuOp_dec_BX(u8 X86EMU_UNUSED(op1)) -{ - START_OF_INSTR(); - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - DECODE_PRINTF("DEC\tEBX\n"); - } else { - DECODE_PRINTF("DEC\tBX\n"); - } - TRACE_AND_STEP(); - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - M.x86.R_EBX = dec_long(M.x86.R_EBX); - } else { - M.x86.R_BX = dec_word(M.x86.R_BX); - } - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0x4c -****************************************************************************/ -static void x86emuOp_dec_SP(u8 X86EMU_UNUSED(op1)) -{ - START_OF_INSTR(); - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - DECODE_PRINTF("DEC\tESP\n"); - } else { - DECODE_PRINTF("DEC\tSP\n"); - } - TRACE_AND_STEP(); - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - M.x86.R_ESP = dec_long(M.x86.R_ESP); - } else { - M.x86.R_SP = dec_word(M.x86.R_SP); - } - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0x4d -****************************************************************************/ -static void x86emuOp_dec_BP(u8 X86EMU_UNUSED(op1)) -{ - START_OF_INSTR(); - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - DECODE_PRINTF("DEC\tEBP\n"); - } else { - DECODE_PRINTF("DEC\tBP\n"); - } - TRACE_AND_STEP(); - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - M.x86.R_EBP = dec_long(M.x86.R_EBP); - } else { - M.x86.R_BP = dec_word(M.x86.R_BP); - } - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0x4e -****************************************************************************/ -static void x86emuOp_dec_SI(u8 X86EMU_UNUSED(op1)) -{ - START_OF_INSTR(); - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - DECODE_PRINTF("DEC\tESI\n"); - } else { - DECODE_PRINTF("DEC\tSI\n"); - } - TRACE_AND_STEP(); - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - M.x86.R_ESI = dec_long(M.x86.R_ESI); - } else { - M.x86.R_SI = dec_word(M.x86.R_SI); - } - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0x4f -****************************************************************************/ -static void x86emuOp_dec_DI(u8 X86EMU_UNUSED(op1)) -{ - START_OF_INSTR(); - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - DECODE_PRINTF("DEC\tEDI\n"); - } else { - DECODE_PRINTF("DEC\tDI\n"); - } - TRACE_AND_STEP(); - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - M.x86.R_EDI = dec_long(M.x86.R_EDI); - } else { - M.x86.R_DI = dec_word(M.x86.R_DI); - } - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0x50 -****************************************************************************/ -static void x86emuOp_push_AX(u8 X86EMU_UNUSED(op1)) -{ - START_OF_INSTR(); - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - DECODE_PRINTF("PUSH\tEAX\n"); - } else { - DECODE_PRINTF("PUSH\tAX\n"); - } - TRACE_AND_STEP(); - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - push_long(M.x86.R_EAX); - } else { - push_word(M.x86.R_AX); - } - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0x51 -****************************************************************************/ -static void x86emuOp_push_CX(u8 X86EMU_UNUSED(op1)) -{ - START_OF_INSTR(); - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - DECODE_PRINTF("PUSH\tECX\n"); - } else { - DECODE_PRINTF("PUSH\tCX\n"); - } - TRACE_AND_STEP(); - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - push_long(M.x86.R_ECX); - } else { - push_word(M.x86.R_CX); - } - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0x52 -****************************************************************************/ -static void x86emuOp_push_DX(u8 X86EMU_UNUSED(op1)) -{ - START_OF_INSTR(); - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - DECODE_PRINTF("PUSH\tEDX\n"); - } else { - DECODE_PRINTF("PUSH\tDX\n"); - } - TRACE_AND_STEP(); - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - push_long(M.x86.R_EDX); - } else { - push_word(M.x86.R_DX); - } - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0x53 -****************************************************************************/ -static void x86emuOp_push_BX(u8 X86EMU_UNUSED(op1)) -{ - START_OF_INSTR(); - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - DECODE_PRINTF("PUSH\tEBX\n"); - } else { - DECODE_PRINTF("PUSH\tBX\n"); - } - TRACE_AND_STEP(); - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - push_long(M.x86.R_EBX); - } else { - push_word(M.x86.R_BX); - } - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0x54 -****************************************************************************/ -static void x86emuOp_push_SP(u8 X86EMU_UNUSED(op1)) -{ - START_OF_INSTR(); - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - DECODE_PRINTF("PUSH\tESP\n"); - } else { - DECODE_PRINTF("PUSH\tSP\n"); - } - TRACE_AND_STEP(); - /* Always push (E)SP, since we are emulating an i386 and above - * processor. This is necessary as some BIOS'es use this to check - * what type of processor is in the system. - */ - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - push_long(M.x86.R_ESP); - } else { - push_word((u16)(M.x86.R_SP)); - } - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0x55 -****************************************************************************/ -static void x86emuOp_push_BP(u8 X86EMU_UNUSED(op1)) -{ - START_OF_INSTR(); - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - DECODE_PRINTF("PUSH\tEBP\n"); - } else { - DECODE_PRINTF("PUSH\tBP\n"); - } - TRACE_AND_STEP(); - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - push_long(M.x86.R_EBP); - } else { - push_word(M.x86.R_BP); - } - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0x56 -****************************************************************************/ -static void x86emuOp_push_SI(u8 X86EMU_UNUSED(op1)) -{ - START_OF_INSTR(); - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - DECODE_PRINTF("PUSH\tESI\n"); - } else { - DECODE_PRINTF("PUSH\tSI\n"); - } - TRACE_AND_STEP(); - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - push_long(M.x86.R_ESI); - } else { - push_word(M.x86.R_SI); - } - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0x57 -****************************************************************************/ -static void x86emuOp_push_DI(u8 X86EMU_UNUSED(op1)) -{ - START_OF_INSTR(); - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - DECODE_PRINTF("PUSH\tEDI\n"); - } else { - DECODE_PRINTF("PUSH\tDI\n"); - } - TRACE_AND_STEP(); - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - push_long(M.x86.R_EDI); - } else { - push_word(M.x86.R_DI); - } - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0x58 -****************************************************************************/ -static void x86emuOp_pop_AX(u8 X86EMU_UNUSED(op1)) -{ - START_OF_INSTR(); - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - DECODE_PRINTF("POP\tEAX\n"); - } else { - DECODE_PRINTF("POP\tAX\n"); - } - TRACE_AND_STEP(); - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - M.x86.R_EAX = pop_long(); - } else { - M.x86.R_AX = pop_word(); - } - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0x59 -****************************************************************************/ -static void x86emuOp_pop_CX(u8 X86EMU_UNUSED(op1)) -{ - START_OF_INSTR(); - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - DECODE_PRINTF("POP\tECX\n"); - } else { - DECODE_PRINTF("POP\tCX\n"); - } - TRACE_AND_STEP(); - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - M.x86.R_ECX = pop_long(); - } else { - M.x86.R_CX = pop_word(); - } - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0x5a -****************************************************************************/ -static void x86emuOp_pop_DX(u8 X86EMU_UNUSED(op1)) -{ - START_OF_INSTR(); - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - DECODE_PRINTF("POP\tEDX\n"); - } else { - DECODE_PRINTF("POP\tDX\n"); - } - TRACE_AND_STEP(); - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - M.x86.R_EDX = pop_long(); - } else { - M.x86.R_DX = pop_word(); - } - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0x5b -****************************************************************************/ -static void x86emuOp_pop_BX(u8 X86EMU_UNUSED(op1)) -{ - START_OF_INSTR(); - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - DECODE_PRINTF("POP\tEBX\n"); - } else { - DECODE_PRINTF("POP\tBX\n"); - } - TRACE_AND_STEP(); - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - M.x86.R_EBX = pop_long(); - } else { - M.x86.R_BX = pop_word(); - } - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0x5c -****************************************************************************/ -static void x86emuOp_pop_SP(u8 X86EMU_UNUSED(op1)) -{ - START_OF_INSTR(); - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - DECODE_PRINTF("POP\tESP\n"); - } else { - DECODE_PRINTF("POP\tSP\n"); - } - TRACE_AND_STEP(); - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - M.x86.R_ESP = pop_long(); - } else { - M.x86.R_SP = pop_word(); - } - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0x5d -****************************************************************************/ -static void x86emuOp_pop_BP(u8 X86EMU_UNUSED(op1)) -{ - START_OF_INSTR(); - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - DECODE_PRINTF("POP\tEBP\n"); - } else { - DECODE_PRINTF("POP\tBP\n"); - } - TRACE_AND_STEP(); - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - M.x86.R_EBP = pop_long(); - } else { - M.x86.R_BP = pop_word(); - } - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0x5e -****************************************************************************/ -static void x86emuOp_pop_SI(u8 X86EMU_UNUSED(op1)) -{ - START_OF_INSTR(); - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - DECODE_PRINTF("POP\tESI\n"); - } else { - DECODE_PRINTF("POP\tSI\n"); - } - TRACE_AND_STEP(); - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - M.x86.R_ESI = pop_long(); - } else { - M.x86.R_SI = pop_word(); - } - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0x5f -****************************************************************************/ -static void x86emuOp_pop_DI(u8 X86EMU_UNUSED(op1)) -{ - START_OF_INSTR(); - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - DECODE_PRINTF("POP\tEDI\n"); - } else { - DECODE_PRINTF("POP\tDI\n"); - } - TRACE_AND_STEP(); - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - M.x86.R_EDI = pop_long(); - } else { - M.x86.R_DI = pop_word(); - } - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0x60 -****************************************************************************/ -static void x86emuOp_push_all(u8 X86EMU_UNUSED(op1)) -{ - START_OF_INSTR(); - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - DECODE_PRINTF("PUSHAD\n"); - } else { - DECODE_PRINTF("PUSHA\n"); - } - TRACE_AND_STEP(); - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - u32 old_sp = M.x86.R_ESP; - - push_long(M.x86.R_EAX); - push_long(M.x86.R_ECX); - push_long(M.x86.R_EDX); - push_long(M.x86.R_EBX); - push_long(old_sp); - push_long(M.x86.R_EBP); - push_long(M.x86.R_ESI); - push_long(M.x86.R_EDI); - } else { - u16 old_sp = M.x86.R_SP; - - push_word(M.x86.R_AX); - push_word(M.x86.R_CX); - push_word(M.x86.R_DX); - push_word(M.x86.R_BX); - push_word(old_sp); - push_word(M.x86.R_BP); - push_word(M.x86.R_SI); - push_word(M.x86.R_DI); - } - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0x61 -****************************************************************************/ -static void x86emuOp_pop_all(u8 X86EMU_UNUSED(op1)) -{ - START_OF_INSTR(); - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - DECODE_PRINTF("POPAD\n"); - } else { - DECODE_PRINTF("POPA\n"); - } - TRACE_AND_STEP(); - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - M.x86.R_EDI = pop_long(); - M.x86.R_ESI = pop_long(); - M.x86.R_EBP = pop_long(); - M.x86.R_ESP += 4; /* skip ESP */ - M.x86.R_EBX = pop_long(); - M.x86.R_EDX = pop_long(); - M.x86.R_ECX = pop_long(); - M.x86.R_EAX = pop_long(); - } else { - M.x86.R_DI = pop_word(); - M.x86.R_SI = pop_word(); - M.x86.R_BP = pop_word(); - M.x86.R_SP += 2; /* skip SP */ - M.x86.R_BX = pop_word(); - M.x86.R_DX = pop_word(); - M.x86.R_CX = pop_word(); - M.x86.R_AX = pop_word(); - } - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); -} - -/*opcode 0x62 ILLEGAL OP, calls x86emuOp_illegal_op() */ -/*opcode 0x63 ILLEGAL OP, calls x86emuOp_illegal_op() */ - -/**************************************************************************** -REMARKS: -Handles opcode 0x64 -****************************************************************************/ -static void x86emuOp_segovr_FS(u8 X86EMU_UNUSED(op1)) -{ - START_OF_INSTR(); - DECODE_PRINTF("FS:\n"); - TRACE_AND_STEP(); - M.x86.mode |= SYSMODE_SEGOVR_FS; - /* - * note the lack of DECODE_CLEAR_SEGOVR(r) since, here is one of 4 - * opcode subroutines we do not want to do this. - */ - END_OF_INSTR(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0x65 -****************************************************************************/ -static void x86emuOp_segovr_GS(u8 X86EMU_UNUSED(op1)) -{ - START_OF_INSTR(); - DECODE_PRINTF("GS:\n"); - TRACE_AND_STEP(); - M.x86.mode |= SYSMODE_SEGOVR_GS; - /* - * note the lack of DECODE_CLEAR_SEGOVR(r) since, here is one of 4 - * opcode subroutines we do not want to do this. - */ - END_OF_INSTR(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0x66 - prefix for 32-bit register -****************************************************************************/ -static void x86emuOp_prefix_data(u8 X86EMU_UNUSED(op1)) -{ - START_OF_INSTR(); - DECODE_PRINTF("DATA:\n"); - TRACE_AND_STEP(); - M.x86.mode |= SYSMODE_PREFIX_DATA; - /* note no DECODE_CLEAR_SEGOVR here. */ - END_OF_INSTR(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0x67 - prefix for 32-bit address -****************************************************************************/ -static void x86emuOp_prefix_addr(u8 X86EMU_UNUSED(op1)) -{ - START_OF_INSTR(); - DECODE_PRINTF("ADDR:\n"); - TRACE_AND_STEP(); - M.x86.mode |= SYSMODE_PREFIX_ADDR; - /* note no DECODE_CLEAR_SEGOVR here. */ - END_OF_INSTR(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0x68 -****************************************************************************/ -static void x86emuOp_push_word_IMM(u8 X86EMU_UNUSED(op1)) -{ - u32 imm; - - START_OF_INSTR(); - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - imm = fetch_long_imm(); - } else { - imm = fetch_word_imm(); - } - DECODE_PRINTF2("PUSH\t%x\n", imm); - TRACE_AND_STEP(); - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - push_long(imm); - } else { - push_word((u16)imm); - } - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0x69 -****************************************************************************/ -static void x86emuOp_imul_word_IMM(u8 X86EMU_UNUSED(op1)) -{ - int mod, rl, rh; - uint srcoffset; - - START_OF_INSTR(); - DECODE_PRINTF("IMUL\t"); - FETCH_DECODE_MODRM(mod, rh, rl); - switch (mod) { - case 0: - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - u32 *destreg; - u32 srcval; - u32 res_lo,res_hi; - s32 imm; - - destreg = DECODE_RM_LONG_REGISTER(rh); - DECODE_PRINTF(","); - srcoffset = decode_rm00_address(rl); - srcval = fetch_data_long(srcoffset); - imm = fetch_long_imm(); - DECODE_PRINTF2(",%d\n", (s32)imm); - TRACE_AND_STEP(); - imul_long_direct(&res_lo,&res_hi,(s32)srcval,(s32)imm); - if (res_hi != 0) { - SET_FLAG(F_CF); - SET_FLAG(F_OF); - } else { - CLEAR_FLAG(F_CF); - CLEAR_FLAG(F_OF); - } - *destreg = (u32)res_lo; - } else { - u16 *destreg; - u16 srcval; - u32 res; - s16 imm; - - destreg = DECODE_RM_WORD_REGISTER(rh); - DECODE_PRINTF(","); - srcoffset = decode_rm00_address(rl); - srcval = fetch_data_word(srcoffset); - imm = fetch_word_imm(); - DECODE_PRINTF2(",%d\n", (s32)imm); - TRACE_AND_STEP(); - res = (s16)srcval * (s16)imm; - if (res > 0xFFFF) { - SET_FLAG(F_CF); - SET_FLAG(F_OF); - } else { - CLEAR_FLAG(F_CF); - CLEAR_FLAG(F_OF); - } - *destreg = (u16)res; - } - break; - case 1: - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - u32 *destreg; - u32 srcval; - u32 res_lo,res_hi; - s32 imm; - - destreg = DECODE_RM_LONG_REGISTER(rh); - DECODE_PRINTF(","); - srcoffset = decode_rm01_address(rl); - srcval = fetch_data_long(srcoffset); - imm = fetch_long_imm(); - DECODE_PRINTF2(",%d\n", (s32)imm); - TRACE_AND_STEP(); - imul_long_direct(&res_lo,&res_hi,(s32)srcval,(s32)imm); - if (res_hi != 0) { - SET_FLAG(F_CF); - SET_FLAG(F_OF); - } else { - CLEAR_FLAG(F_CF); - CLEAR_FLAG(F_OF); - } - *destreg = (u32)res_lo; - } else { - u16 *destreg; - u16 srcval; - u32 res; - s16 imm; - - destreg = DECODE_RM_WORD_REGISTER(rh); - DECODE_PRINTF(","); - srcoffset = decode_rm01_address(rl); - srcval = fetch_data_word(srcoffset); - imm = fetch_word_imm(); - DECODE_PRINTF2(",%d\n", (s32)imm); - TRACE_AND_STEP(); - res = (s16)srcval * (s16)imm; - if (res > 0xFFFF) { - SET_FLAG(F_CF); - SET_FLAG(F_OF); - } else { - CLEAR_FLAG(F_CF); - CLEAR_FLAG(F_OF); - } - *destreg = (u16)res; - } - break; - case 2: - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - u32 *destreg; - u32 srcval; - u32 res_lo,res_hi; - s32 imm; - - destreg = DECODE_RM_LONG_REGISTER(rh); - DECODE_PRINTF(","); - srcoffset = decode_rm10_address(rl); - srcval = fetch_data_long(srcoffset); - imm = fetch_long_imm(); - DECODE_PRINTF2(",%d\n", (s32)imm); - TRACE_AND_STEP(); - imul_long_direct(&res_lo,&res_hi,(s32)srcval,(s32)imm); - if (res_hi != 0) { - SET_FLAG(F_CF); - SET_FLAG(F_OF); - } else { - CLEAR_FLAG(F_CF); - CLEAR_FLAG(F_OF); - } - *destreg = (u32)res_lo; - } else { - u16 *destreg; - u16 srcval; - u32 res; - s16 imm; - - destreg = DECODE_RM_WORD_REGISTER(rh); - DECODE_PRINTF(","); - srcoffset = decode_rm10_address(rl); - srcval = fetch_data_word(srcoffset); - imm = fetch_word_imm(); - DECODE_PRINTF2(",%d\n", (s32)imm); - TRACE_AND_STEP(); - res = (s16)srcval * (s16)imm; - if (res > 0xFFFF) { - SET_FLAG(F_CF); - SET_FLAG(F_OF); - } else { - CLEAR_FLAG(F_CF); - CLEAR_FLAG(F_OF); - } - *destreg = (u16)res; - } - break; - case 3: /* register to register */ - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - u32 *destreg,*srcreg; - u32 res_lo,res_hi; - s32 imm; - - destreg = DECODE_RM_LONG_REGISTER(rh); - DECODE_PRINTF(","); - srcreg = DECODE_RM_LONG_REGISTER(rl); - imm = fetch_long_imm(); - DECODE_PRINTF2(",%d\n", (s32)imm); - TRACE_AND_STEP(); - imul_long_direct(&res_lo,&res_hi,(s32)*srcreg,(s32)imm); - if (res_hi != 0) { - SET_FLAG(F_CF); - SET_FLAG(F_OF); - } else { - CLEAR_FLAG(F_CF); - CLEAR_FLAG(F_OF); - } - *destreg = (u32)res_lo; - } else { - u16 *destreg,*srcreg; - u32 res; - s16 imm; - - destreg = DECODE_RM_WORD_REGISTER(rh); - DECODE_PRINTF(","); - srcreg = DECODE_RM_WORD_REGISTER(rl); - imm = fetch_word_imm(); - DECODE_PRINTF2(",%d\n", (s32)imm); - res = (s16)*srcreg * (s16)imm; - if (res > 0xFFFF) { - SET_FLAG(F_CF); - SET_FLAG(F_OF); - } else { - CLEAR_FLAG(F_CF); - CLEAR_FLAG(F_OF); - } - *destreg = (u16)res; - } - break; - } - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0x6a -****************************************************************************/ -static void x86emuOp_push_byte_IMM(u8 X86EMU_UNUSED(op1)) -{ - s16 imm; - - START_OF_INSTR(); - imm = (s8)fetch_byte_imm(); - DECODE_PRINTF2("PUSH\t%d\n", imm); - TRACE_AND_STEP(); - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - push_long((s32)imm); - } else { - push_word(imm); - } - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0x6b -****************************************************************************/ -static void x86emuOp_imul_byte_IMM(u8 X86EMU_UNUSED(op1)) -{ - int mod, rl, rh; - uint srcoffset; - s8 imm; - - START_OF_INSTR(); - DECODE_PRINTF("IMUL\t"); - FETCH_DECODE_MODRM(mod, rh, rl); - switch (mod) { - case 0: - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - u32 *destreg; - u32 srcval; - u32 res_lo,res_hi; - - destreg = DECODE_RM_LONG_REGISTER(rh); - DECODE_PRINTF(","); - srcoffset = decode_rm00_address(rl); - srcval = fetch_data_long(srcoffset); - imm = fetch_byte_imm(); - DECODE_PRINTF2(",%d\n", (s32)imm); - TRACE_AND_STEP(); - imul_long_direct(&res_lo,&res_hi,(s32)srcval,(s32)imm); - if (res_hi != 0) { - SET_FLAG(F_CF); - SET_FLAG(F_OF); - } else { - CLEAR_FLAG(F_CF); - CLEAR_FLAG(F_OF); - } - *destreg = (u32)res_lo; - } else { - u16 *destreg; - u16 srcval; - u32 res; - - destreg = DECODE_RM_WORD_REGISTER(rh); - DECODE_PRINTF(","); - srcoffset = decode_rm00_address(rl); - srcval = fetch_data_word(srcoffset); - imm = fetch_byte_imm(); - DECODE_PRINTF2(",%d\n", (s32)imm); - TRACE_AND_STEP(); - res = (s16)srcval * (s16)imm; - if (res > 0xFFFF) { - SET_FLAG(F_CF); - SET_FLAG(F_OF); - } else { - CLEAR_FLAG(F_CF); - CLEAR_FLAG(F_OF); - } - *destreg = (u16)res; - } - break; - case 1: - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - u32 *destreg; - u32 srcval; - u32 res_lo,res_hi; - - destreg = DECODE_RM_LONG_REGISTER(rh); - DECODE_PRINTF(","); - srcoffset = decode_rm01_address(rl); - srcval = fetch_data_long(srcoffset); - imm = fetch_byte_imm(); - DECODE_PRINTF2(",%d\n", (s32)imm); - TRACE_AND_STEP(); - imul_long_direct(&res_lo,&res_hi,(s32)srcval,(s32)imm); - if (res_hi != 0) { - SET_FLAG(F_CF); - SET_FLAG(F_OF); - } else { - CLEAR_FLAG(F_CF); - CLEAR_FLAG(F_OF); - } - *destreg = (u32)res_lo; - } else { - u16 *destreg; - u16 srcval; - u32 res; - - destreg = DECODE_RM_WORD_REGISTER(rh); - DECODE_PRINTF(","); - srcoffset = decode_rm01_address(rl); - srcval = fetch_data_word(srcoffset); - imm = fetch_byte_imm(); - DECODE_PRINTF2(",%d\n", (s32)imm); - TRACE_AND_STEP(); - res = (s16)srcval * (s16)imm; - if (res > 0xFFFF) { - SET_FLAG(F_CF); - SET_FLAG(F_OF); - } else { - CLEAR_FLAG(F_CF); - CLEAR_FLAG(F_OF); - } - *destreg = (u16)res; - } - break; - case 2: - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - u32 *destreg; - u32 srcval; - u32 res_lo,res_hi; - - destreg = DECODE_RM_LONG_REGISTER(rh); - DECODE_PRINTF(","); - srcoffset = decode_rm10_address(rl); - srcval = fetch_data_long(srcoffset); - imm = fetch_byte_imm(); - DECODE_PRINTF2(",%d\n", (s32)imm); - TRACE_AND_STEP(); - imul_long_direct(&res_lo,&res_hi,(s32)srcval,(s32)imm); - if (res_hi != 0) { - SET_FLAG(F_CF); - SET_FLAG(F_OF); - } else { - CLEAR_FLAG(F_CF); - CLEAR_FLAG(F_OF); - } - *destreg = (u32)res_lo; - } else { - u16 *destreg; - u16 srcval; - u32 res; - - destreg = DECODE_RM_WORD_REGISTER(rh); - DECODE_PRINTF(","); - srcoffset = decode_rm10_address(rl); - srcval = fetch_data_word(srcoffset); - imm = fetch_byte_imm(); - DECODE_PRINTF2(",%d\n", (s32)imm); - TRACE_AND_STEP(); - res = (s16)srcval * (s16)imm; - if (res > 0xFFFF) { - SET_FLAG(F_CF); - SET_FLAG(F_OF); - } else { - CLEAR_FLAG(F_CF); - CLEAR_FLAG(F_OF); - } - *destreg = (u16)res; - } - break; - case 3: /* register to register */ - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - u32 *destreg,*srcreg; - u32 res_lo,res_hi; - - destreg = DECODE_RM_LONG_REGISTER(rh); - DECODE_PRINTF(","); - srcreg = DECODE_RM_LONG_REGISTER(rl); - imm = fetch_byte_imm(); - DECODE_PRINTF2(",%d\n", (s32)imm); - TRACE_AND_STEP(); - imul_long_direct(&res_lo,&res_hi,(s32)*srcreg,(s32)imm); - if (res_hi != 0) { - SET_FLAG(F_CF); - SET_FLAG(F_OF); - } else { - CLEAR_FLAG(F_CF); - CLEAR_FLAG(F_OF); - } - *destreg = (u32)res_lo; - } else { - u16 *destreg,*srcreg; - u32 res; - - destreg = DECODE_RM_WORD_REGISTER(rh); - DECODE_PRINTF(","); - srcreg = DECODE_RM_WORD_REGISTER(rl); - imm = fetch_byte_imm(); - DECODE_PRINTF2(",%d\n", (s32)imm); - res = (s16)*srcreg * (s16)imm; - if (res > 0xFFFF) { - SET_FLAG(F_CF); - SET_FLAG(F_OF); - } else { - CLEAR_FLAG(F_CF); - CLEAR_FLAG(F_OF); - } - *destreg = (u16)res; - } - break; - } - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0x6c -****************************************************************************/ -static void x86emuOp_ins_byte(u8 X86EMU_UNUSED(op1)) -{ - START_OF_INSTR(); - DECODE_PRINTF("INSB\n"); - ins(1); - TRACE_AND_STEP(); - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0x6d -****************************************************************************/ -static void x86emuOp_ins_word(u8 X86EMU_UNUSED(op1)) -{ - START_OF_INSTR(); - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - DECODE_PRINTF("INSD\n"); - ins(4); - } else { - DECODE_PRINTF("INSW\n"); - ins(2); - } - TRACE_AND_STEP(); - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0x6e -****************************************************************************/ -static void x86emuOp_outs_byte(u8 X86EMU_UNUSED(op1)) -{ - START_OF_INSTR(); - DECODE_PRINTF("OUTSB\n"); - outs(1); - TRACE_AND_STEP(); - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0x6f -****************************************************************************/ -static void x86emuOp_outs_word(u8 X86EMU_UNUSED(op1)) -{ - START_OF_INSTR(); - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - DECODE_PRINTF("OUTSD\n"); - outs(4); - } else { - DECODE_PRINTF("OUTSW\n"); - outs(2); - } - TRACE_AND_STEP(); - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0x70 -****************************************************************************/ -static void x86emuOp_jump_near_O(u8 X86EMU_UNUSED(op1)) -{ - s8 offset; - u16 target; - - /* jump to byte offset if overflow flag is set */ - START_OF_INSTR(); - DECODE_PRINTF("JO\t"); - offset = (s8)fetch_byte_imm(); - target = (u16)(M.x86.R_IP + (s16)offset); - DECODE_PRINTF2("%x\n", target); - TRACE_AND_STEP(); - if (ACCESS_FLAG(F_OF)) - M.x86.R_IP = target; - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0x71 -****************************************************************************/ -static void x86emuOp_jump_near_NO(u8 X86EMU_UNUSED(op1)) -{ - s8 offset; - u16 target; - - /* jump to byte offset if overflow is not set */ - START_OF_INSTR(); - DECODE_PRINTF("JNO\t"); - offset = (s8)fetch_byte_imm(); - target = (u16)(M.x86.R_IP + (s16)offset); - DECODE_PRINTF2("%x\n", target); - TRACE_AND_STEP(); - if (!ACCESS_FLAG(F_OF)) - M.x86.R_IP = target; - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0x72 -****************************************************************************/ -static void x86emuOp_jump_near_B(u8 X86EMU_UNUSED(op1)) -{ - s8 offset; - u16 target; - - /* jump to byte offset if carry flag is set. */ - START_OF_INSTR(); - DECODE_PRINTF("JB\t"); - offset = (s8)fetch_byte_imm(); - target = (u16)(M.x86.R_IP + (s16)offset); - DECODE_PRINTF2("%x\n", target); - TRACE_AND_STEP(); - if (ACCESS_FLAG(F_CF)) - M.x86.R_IP = target; - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0x73 -****************************************************************************/ -static void x86emuOp_jump_near_NB(u8 X86EMU_UNUSED(op1)) -{ - s8 offset; - u16 target; - - /* jump to byte offset if carry flag is clear. */ - START_OF_INSTR(); - DECODE_PRINTF("JNB\t"); - offset = (s8)fetch_byte_imm(); - target = (u16)(M.x86.R_IP + (s16)offset); - DECODE_PRINTF2("%x\n", target); - TRACE_AND_STEP(); - if (!ACCESS_FLAG(F_CF)) - M.x86.R_IP = target; - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0x74 -****************************************************************************/ -static void x86emuOp_jump_near_Z(u8 X86EMU_UNUSED(op1)) -{ - s8 offset; - u16 target; - - /* jump to byte offset if zero flag is set. */ - START_OF_INSTR(); - DECODE_PRINTF("JZ\t"); - offset = (s8)fetch_byte_imm(); - target = (u16)(M.x86.R_IP + (s16)offset); - DECODE_PRINTF2("%x\n", target); - TRACE_AND_STEP(); - if (ACCESS_FLAG(F_ZF)) - M.x86.R_IP = target; - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0x75 -****************************************************************************/ -static void x86emuOp_jump_near_NZ(u8 X86EMU_UNUSED(op1)) -{ - s8 offset; - u16 target; - - /* jump to byte offset if zero flag is clear. */ - START_OF_INSTR(); - DECODE_PRINTF("JNZ\t"); - offset = (s8)fetch_byte_imm(); - target = (u16)(M.x86.R_IP + (s16)offset); - DECODE_PRINTF2("%x\n", target); - TRACE_AND_STEP(); - if (!ACCESS_FLAG(F_ZF)) - M.x86.R_IP = target; - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0x76 -****************************************************************************/ -static void x86emuOp_jump_near_BE(u8 X86EMU_UNUSED(op1)) -{ - s8 offset; - u16 target; - - /* jump to byte offset if carry flag is set or if the zero - flag is set. */ - START_OF_INSTR(); - DECODE_PRINTF("JBE\t"); - offset = (s8)fetch_byte_imm(); - target = (u16)(M.x86.R_IP + (s16)offset); - DECODE_PRINTF2("%x\n", target); - TRACE_AND_STEP(); - if (ACCESS_FLAG(F_CF) || ACCESS_FLAG(F_ZF)) - M.x86.R_IP = target; - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0x77 -****************************************************************************/ -static void x86emuOp_jump_near_NBE(u8 X86EMU_UNUSED(op1)) -{ - s8 offset; - u16 target; - - /* jump to byte offset if carry flag is clear and if the zero - flag is clear */ - START_OF_INSTR(); - DECODE_PRINTF("JNBE\t"); - offset = (s8)fetch_byte_imm(); - target = (u16)(M.x86.R_IP + (s16)offset); - DECODE_PRINTF2("%x\n", target); - TRACE_AND_STEP(); - if (!(ACCESS_FLAG(F_CF) || ACCESS_FLAG(F_ZF))) - M.x86.R_IP = target; - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0x78 -****************************************************************************/ -static void x86emuOp_jump_near_S(u8 X86EMU_UNUSED(op1)) -{ - s8 offset; - u16 target; - - /* jump to byte offset if sign flag is set */ - START_OF_INSTR(); - DECODE_PRINTF("JS\t"); - offset = (s8)fetch_byte_imm(); - target = (u16)(M.x86.R_IP + (s16)offset); - DECODE_PRINTF2("%x\n", target); - TRACE_AND_STEP(); - if (ACCESS_FLAG(F_SF)) - M.x86.R_IP = target; - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0x79 -****************************************************************************/ -static void x86emuOp_jump_near_NS(u8 X86EMU_UNUSED(op1)) -{ - s8 offset; - u16 target; - - /* jump to byte offset if sign flag is clear */ - START_OF_INSTR(); - DECODE_PRINTF("JNS\t"); - offset = (s8)fetch_byte_imm(); - target = (u16)(M.x86.R_IP + (s16)offset); - DECODE_PRINTF2("%x\n", target); - TRACE_AND_STEP(); - if (!ACCESS_FLAG(F_SF)) - M.x86.R_IP = target; - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0x7a -****************************************************************************/ -static void x86emuOp_jump_near_P(u8 X86EMU_UNUSED(op1)) -{ - s8 offset; - u16 target; - - /* jump to byte offset if parity flag is set (even parity) */ - START_OF_INSTR(); - DECODE_PRINTF("JP\t"); - offset = (s8)fetch_byte_imm(); - target = (u16)(M.x86.R_IP + (s16)offset); - DECODE_PRINTF2("%x\n", target); - TRACE_AND_STEP(); - if (ACCESS_FLAG(F_PF)) - M.x86.R_IP = target; - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0x7b -****************************************************************************/ -static void x86emuOp_jump_near_NP(u8 X86EMU_UNUSED(op1)) -{ - s8 offset; - u16 target; - - /* jump to byte offset if parity flag is clear (odd parity) */ - START_OF_INSTR(); - DECODE_PRINTF("JNP\t"); - offset = (s8)fetch_byte_imm(); - target = (u16)(M.x86.R_IP + (s16)offset); - DECODE_PRINTF2("%x\n", target); - TRACE_AND_STEP(); - if (!ACCESS_FLAG(F_PF)) - M.x86.R_IP = target; - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0x7c -****************************************************************************/ -static void x86emuOp_jump_near_L(u8 X86EMU_UNUSED(op1)) -{ - s8 offset; - u16 target; - int sf, of; - - /* jump to byte offset if sign flag not equal to overflow flag. */ - START_OF_INSTR(); - DECODE_PRINTF("JL\t"); - offset = (s8)fetch_byte_imm(); - target = (u16)(M.x86.R_IP + (s16)offset); - DECODE_PRINTF2("%x\n", target); - TRACE_AND_STEP(); - sf = ACCESS_FLAG(F_SF) != 0; - of = ACCESS_FLAG(F_OF) != 0; - if (sf ^ of) - M.x86.R_IP = target; - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0x7d -****************************************************************************/ -static void x86emuOp_jump_near_NL(u8 X86EMU_UNUSED(op1)) -{ - s8 offset; - u16 target; - int sf, of; - - /* jump to byte offset if sign flag not equal to overflow flag. */ - START_OF_INSTR(); - DECODE_PRINTF("JNL\t"); - offset = (s8)fetch_byte_imm(); - target = (u16)(M.x86.R_IP + (s16)offset); - DECODE_PRINTF2("%x\n", target); - TRACE_AND_STEP(); - sf = ACCESS_FLAG(F_SF) != 0; - of = ACCESS_FLAG(F_OF) != 0; - /* note: inverse of above, but using == instead of xor. */ - if (sf == of) - M.x86.R_IP = target; - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0x7e -****************************************************************************/ -static void x86emuOp_jump_near_LE(u8 X86EMU_UNUSED(op1)) -{ - s8 offset; - u16 target; - int sf, of; - - /* jump to byte offset if sign flag not equal to overflow flag - or the zero flag is set */ - START_OF_INSTR(); - DECODE_PRINTF("JLE\t"); - offset = (s8)fetch_byte_imm(); - target = (u16)(M.x86.R_IP + (s16)offset); - DECODE_PRINTF2("%x\n", target); - TRACE_AND_STEP(); - sf = ACCESS_FLAG(F_SF) != 0; - of = ACCESS_FLAG(F_OF) != 0; - if ((sf ^ of) || ACCESS_FLAG(F_ZF)) - M.x86.R_IP = target; - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0x7f -****************************************************************************/ -static void x86emuOp_jump_near_NLE(u8 X86EMU_UNUSED(op1)) -{ - s8 offset; - u16 target; - int sf, of; - - /* jump to byte offset if sign flag equal to overflow flag. - and the zero flag is clear */ - START_OF_INSTR(); - DECODE_PRINTF("JNLE\t"); - offset = (s8)fetch_byte_imm(); - target = (u16)(M.x86.R_IP + (s16)offset); - DECODE_PRINTF2("%x\n", target); - TRACE_AND_STEP(); - sf = ACCESS_FLAG(F_SF) != 0; - of = ACCESS_FLAG(F_OF) != 0; - if ((sf == of) && !ACCESS_FLAG(F_ZF)) - M.x86.R_IP = target; - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); -} - -static u8 (*opc80_byte_operation[])(u8 d, u8 s) = -{ - add_byte, /* 00 */ - or_byte, /* 01 */ - adc_byte, /* 02 */ - sbb_byte, /* 03 */ - and_byte, /* 04 */ - sub_byte, /* 05 */ - xor_byte, /* 06 */ - cmp_byte, /* 07 */ -}; - -/**************************************************************************** -REMARKS: -Handles opcode 0x80 -****************************************************************************/ -static void x86emuOp_opc80_byte_RM_IMM(u8 X86EMU_UNUSED(op1)) -{ - int mod, rl, rh; - u8 *destreg; - uint destoffset; - u8 imm; - u8 destval; - - /* - * Weirdo special case instruction format. Part of the opcode - * held below in "RH". Doubly nested case would result, except - * that the decoded instruction - */ - START_OF_INSTR(); - FETCH_DECODE_MODRM(mod, rh, rl); -#ifdef DEBUG - if (DEBUG_DECODE()) { - /* XXX DECODE_PRINTF may be changed to something more - general, so that it is important to leave the strings - in the same format, even though the result is that the - above test is done twice. */ - - switch (rh) { - case 0: - DECODE_PRINTF("ADD\t"); - break; - case 1: - DECODE_PRINTF("OR\t"); - break; - case 2: - DECODE_PRINTF("ADC\t"); - break; - case 3: - DECODE_PRINTF("SBB\t"); - break; - case 4: - DECODE_PRINTF("AND\t"); - break; - case 5: - DECODE_PRINTF("SUB\t"); - break; - case 6: - DECODE_PRINTF("XOR\t"); - break; - case 7: - DECODE_PRINTF("CMP\t"); - break; - } - } -#endif - /* know operation, decode the mod byte to find the addressing - mode. */ - switch (mod) { - case 0: - DECODE_PRINTF("BYTE PTR "); - destoffset = decode_rm00_address(rl); - DECODE_PRINTF(","); - destval = fetch_data_byte(destoffset); - imm = fetch_byte_imm(); - DECODE_PRINTF2("%x\n", imm); - TRACE_AND_STEP(); - destval = (*opc80_byte_operation[rh]) (destval, imm); - if (rh != 7) - store_data_byte(destoffset, destval); - break; - case 1: - DECODE_PRINTF("BYTE PTR "); - destoffset = decode_rm01_address(rl); - DECODE_PRINTF(","); - destval = fetch_data_byte(destoffset); - imm = fetch_byte_imm(); - DECODE_PRINTF2("%x\n", imm); - TRACE_AND_STEP(); - destval = (*opc80_byte_operation[rh]) (destval, imm); - if (rh != 7) - store_data_byte(destoffset, destval); - break; - case 2: - DECODE_PRINTF("BYTE PTR "); - destoffset = decode_rm10_address(rl); - DECODE_PRINTF(","); - destval = fetch_data_byte(destoffset); - imm = fetch_byte_imm(); - DECODE_PRINTF2("%x\n", imm); - TRACE_AND_STEP(); - destval = (*opc80_byte_operation[rh]) (destval, imm); - if (rh != 7) - store_data_byte(destoffset, destval); - break; - case 3: /* register to register */ - destreg = DECODE_RM_BYTE_REGISTER(rl); - DECODE_PRINTF(","); - imm = fetch_byte_imm(); - DECODE_PRINTF2("%x\n", imm); - TRACE_AND_STEP(); - destval = (*opc80_byte_operation[rh]) (*destreg, imm); - if (rh != 7) - *destreg = destval; - break; - } - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); -} - -static u16 (*opc81_word_operation[])(u16 d, u16 s) = -{ - add_word, /*00 */ - or_word, /*01 */ - adc_word, /*02 */ - sbb_word, /*03 */ - and_word, /*04 */ - sub_word, /*05 */ - xor_word, /*06 */ - cmp_word, /*07 */ -}; - -static u32 (*opc81_long_operation[])(u32 d, u32 s) = -{ - add_long, /*00 */ - or_long, /*01 */ - adc_long, /*02 */ - sbb_long, /*03 */ - and_long, /*04 */ - sub_long, /*05 */ - xor_long, /*06 */ - cmp_long, /*07 */ -}; - -/**************************************************************************** -REMARKS: -Handles opcode 0x81 -****************************************************************************/ -static void x86emuOp_opc81_word_RM_IMM(u8 X86EMU_UNUSED(op1)) -{ - int mod, rl, rh; - uint destoffset; - - /* - * Weirdo special case instruction format. Part of the opcode - * held below in "RH". Doubly nested case would result, except - * that the decoded instruction - */ - START_OF_INSTR(); - FETCH_DECODE_MODRM(mod, rh, rl); -#ifdef DEBUG - if (DEBUG_DECODE()) { - /* XXX DECODE_PRINTF may be changed to something more - general, so that it is important to leave the strings - in the same format, even though the result is that the - above test is done twice. */ - - switch (rh) { - case 0: - DECODE_PRINTF("ADD\t"); - break; - case 1: - DECODE_PRINTF("OR\t"); - break; - case 2: - DECODE_PRINTF("ADC\t"); - break; - case 3: - DECODE_PRINTF("SBB\t"); - break; - case 4: - DECODE_PRINTF("AND\t"); - break; - case 5: - DECODE_PRINTF("SUB\t"); - break; - case 6: - DECODE_PRINTF("XOR\t"); - break; - case 7: - DECODE_PRINTF("CMP\t"); - break; - } - } -#endif - /* - * Know operation, decode the mod byte to find the addressing - * mode. - */ - switch (mod) { - case 0: - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - u32 destval,imm; - - DECODE_PRINTF("DWORD PTR "); - destoffset = decode_rm00_address(rl); - DECODE_PRINTF(","); - destval = fetch_data_long(destoffset); - imm = fetch_long_imm(); - DECODE_PRINTF2("%x\n", imm); - TRACE_AND_STEP(); - destval = (*opc81_long_operation[rh]) (destval, imm); - if (rh != 7) - store_data_long(destoffset, destval); - } else { - u16 destval,imm; - - DECODE_PRINTF("WORD PTR "); - destoffset = decode_rm00_address(rl); - DECODE_PRINTF(","); - destval = fetch_data_word(destoffset); - imm = fetch_word_imm(); - DECODE_PRINTF2("%x\n", imm); - TRACE_AND_STEP(); - destval = (*opc81_word_operation[rh]) (destval, imm); - if (rh != 7) - store_data_word(destoffset, destval); - } - break; - case 1: - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - u32 destval,imm; - - DECODE_PRINTF("DWORD PTR "); - destoffset = decode_rm01_address(rl); - DECODE_PRINTF(","); - destval = fetch_data_long(destoffset); - imm = fetch_long_imm(); - DECODE_PRINTF2("%x\n", imm); - TRACE_AND_STEP(); - destval = (*opc81_long_operation[rh]) (destval, imm); - if (rh != 7) - store_data_long(destoffset, destval); - } else { - u16 destval,imm; - - DECODE_PRINTF("WORD PTR "); - destoffset = decode_rm01_address(rl); - DECODE_PRINTF(","); - destval = fetch_data_word(destoffset); - imm = fetch_word_imm(); - DECODE_PRINTF2("%x\n", imm); - TRACE_AND_STEP(); - destval = (*opc81_word_operation[rh]) (destval, imm); - if (rh != 7) - store_data_word(destoffset, destval); - } - break; - case 2: - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - u32 destval,imm; - - DECODE_PRINTF("DWORD PTR "); - destoffset = decode_rm10_address(rl); - DECODE_PRINTF(","); - destval = fetch_data_long(destoffset); - imm = fetch_long_imm(); - DECODE_PRINTF2("%x\n", imm); - TRACE_AND_STEP(); - destval = (*opc81_long_operation[rh]) (destval, imm); - if (rh != 7) - store_data_long(destoffset, destval); - } else { - u16 destval,imm; - - DECODE_PRINTF("WORD PTR "); - destoffset = decode_rm10_address(rl); - DECODE_PRINTF(","); - destval = fetch_data_word(destoffset); - imm = fetch_word_imm(); - DECODE_PRINTF2("%x\n", imm); - TRACE_AND_STEP(); - destval = (*opc81_word_operation[rh]) (destval, imm); - if (rh != 7) - store_data_word(destoffset, destval); - } - break; - case 3: /* register to register */ - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - u32 *destreg; - u32 destval,imm; - - destreg = DECODE_RM_LONG_REGISTER(rl); - DECODE_PRINTF(","); - imm = fetch_long_imm(); - DECODE_PRINTF2("%x\n", imm); - TRACE_AND_STEP(); - destval = (*opc81_long_operation[rh]) (*destreg, imm); - if (rh != 7) - *destreg = destval; - } else { - u16 *destreg; - u16 destval,imm; - - destreg = DECODE_RM_WORD_REGISTER(rl); - DECODE_PRINTF(","); - imm = fetch_word_imm(); - DECODE_PRINTF2("%x\n", imm); - TRACE_AND_STEP(); - destval = (*opc81_word_operation[rh]) (*destreg, imm); - if (rh != 7) - *destreg = destval; - } - break; - } - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); -} - -static u8 (*opc82_byte_operation[])(u8 s, u8 d) = -{ - add_byte, /*00 */ - or_byte, /*01 *//*YYY UNUSED ???? */ - adc_byte, /*02 */ - sbb_byte, /*03 */ - and_byte, /*04 *//*YYY UNUSED ???? */ - sub_byte, /*05 */ - xor_byte, /*06 *//*YYY UNUSED ???? */ - cmp_byte, /*07 */ -}; - -/**************************************************************************** -REMARKS: -Handles opcode 0x82 -****************************************************************************/ -static void x86emuOp_opc82_byte_RM_IMM(u8 X86EMU_UNUSED(op1)) -{ - int mod, rl, rh; - u8 *destreg; - uint destoffset; - u8 imm; - u8 destval; - - /* - * Weirdo special case instruction format. Part of the opcode - * held below in "RH". Doubly nested case would result, except - * that the decoded instruction Similar to opcode 81, except that - * the immediate byte is sign extended to a word length. - */ - START_OF_INSTR(); - FETCH_DECODE_MODRM(mod, rh, rl); -#ifdef DEBUG - if (DEBUG_DECODE()) { - /* XXX DECODE_PRINTF may be changed to something more - general, so that it is important to leave the strings - in the same format, even though the result is that the - above test is done twice. */ - switch (rh) { - case 0: - DECODE_PRINTF("ADD\t"); - break; - case 1: - DECODE_PRINTF("OR\t"); - break; - case 2: - DECODE_PRINTF("ADC\t"); - break; - case 3: - DECODE_PRINTF("SBB\t"); - break; - case 4: - DECODE_PRINTF("AND\t"); - break; - case 5: - DECODE_PRINTF("SUB\t"); - break; - case 6: - DECODE_PRINTF("XOR\t"); - break; - case 7: - DECODE_PRINTF("CMP\t"); - break; - } - } -#endif - /* know operation, decode the mod byte to find the addressing - mode. */ - switch (mod) { - case 0: - DECODE_PRINTF("BYTE PTR "); - destoffset = decode_rm00_address(rl); - destval = fetch_data_byte(destoffset); - imm = fetch_byte_imm(); - DECODE_PRINTF2(",%x\n", imm); - TRACE_AND_STEP(); - destval = (*opc82_byte_operation[rh]) (destval, imm); - if (rh != 7) - store_data_byte(destoffset, destval); - break; - case 1: - DECODE_PRINTF("BYTE PTR "); - destoffset = decode_rm01_address(rl); - destval = fetch_data_byte(destoffset); - imm = fetch_byte_imm(); - DECODE_PRINTF2(",%x\n", imm); - TRACE_AND_STEP(); - destval = (*opc82_byte_operation[rh]) (destval, imm); - if (rh != 7) - store_data_byte(destoffset, destval); - break; - case 2: - DECODE_PRINTF("BYTE PTR "); - destoffset = decode_rm10_address(rl); - destval = fetch_data_byte(destoffset); - imm = fetch_byte_imm(); - DECODE_PRINTF2(",%x\n", imm); - TRACE_AND_STEP(); - destval = (*opc82_byte_operation[rh]) (destval, imm); - if (rh != 7) - store_data_byte(destoffset, destval); - break; - case 3: /* register to register */ - destreg = DECODE_RM_BYTE_REGISTER(rl); - imm = fetch_byte_imm(); - DECODE_PRINTF2(",%x\n", imm); - TRACE_AND_STEP(); - destval = (*opc82_byte_operation[rh]) (*destreg, imm); - if (rh != 7) - *destreg = destval; - break; - } - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); -} - -static u16 (*opc83_word_operation[])(u16 s, u16 d) = -{ - add_word, /*00 */ - or_word, /*01 *//*YYY UNUSED ???? */ - adc_word, /*02 */ - sbb_word, /*03 */ - and_word, /*04 *//*YYY UNUSED ???? */ - sub_word, /*05 */ - xor_word, /*06 *//*YYY UNUSED ???? */ - cmp_word, /*07 */ -}; - -static u32 (*opc83_long_operation[])(u32 s, u32 d) = -{ - add_long, /*00 */ - or_long, /*01 *//*YYY UNUSED ???? */ - adc_long, /*02 */ - sbb_long, /*03 */ - and_long, /*04 *//*YYY UNUSED ???? */ - sub_long, /*05 */ - xor_long, /*06 *//*YYY UNUSED ???? */ - cmp_long, /*07 */ -}; - -/**************************************************************************** -REMARKS: -Handles opcode 0x83 -****************************************************************************/ -static void x86emuOp_opc83_word_RM_IMM(u8 X86EMU_UNUSED(op1)) -{ - int mod, rl, rh; - uint destoffset; - - /* - * Weirdo special case instruction format. Part of the opcode - * held below in "RH". Doubly nested case would result, except - * that the decoded instruction Similar to opcode 81, except that - * the immediate byte is sign extended to a word length. - */ - START_OF_INSTR(); - FETCH_DECODE_MODRM(mod, rh, rl); -#ifdef DEBUG - if (DEBUG_DECODE()) { - /* XXX DECODE_PRINTF may be changed to something more - general, so that it is important to leave the strings - in the same format, even though the result is that the - above test is done twice. */ - switch (rh) { - case 0: - DECODE_PRINTF("ADD\t"); - break; - case 1: - DECODE_PRINTF("OR\t"); - break; - case 2: - DECODE_PRINTF("ADC\t"); - break; - case 3: - DECODE_PRINTF("SBB\t"); - break; - case 4: - DECODE_PRINTF("AND\t"); - break; - case 5: - DECODE_PRINTF("SUB\t"); - break; - case 6: - DECODE_PRINTF("XOR\t"); - break; - case 7: - DECODE_PRINTF("CMP\t"); - break; - } - } -#endif - /* know operation, decode the mod byte to find the addressing - mode. */ - switch (mod) { - case 0: - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - u32 destval,imm; - - DECODE_PRINTF("DWORD PTR "); - destoffset = decode_rm00_address(rl); - destval = fetch_data_long(destoffset); - imm = (s8) fetch_byte_imm(); - DECODE_PRINTF2(",%x\n", imm); - TRACE_AND_STEP(); - destval = (*opc83_long_operation[rh]) (destval, imm); - if (rh != 7) - store_data_long(destoffset, destval); - } else { - u16 destval,imm; - - DECODE_PRINTF("WORD PTR "); - destoffset = decode_rm00_address(rl); - destval = fetch_data_word(destoffset); - imm = (s8) fetch_byte_imm(); - DECODE_PRINTF2(",%x\n", imm); - TRACE_AND_STEP(); - destval = (*opc83_word_operation[rh]) (destval, imm); - if (rh != 7) - store_data_word(destoffset, destval); - } - break; - case 1: - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - u32 destval,imm; - - DECODE_PRINTF("DWORD PTR "); - destoffset = decode_rm01_address(rl); - destval = fetch_data_long(destoffset); - imm = (s8) fetch_byte_imm(); - DECODE_PRINTF2(",%x\n", imm); - TRACE_AND_STEP(); - destval = (*opc83_long_operation[rh]) (destval, imm); - if (rh != 7) - store_data_long(destoffset, destval); - } else { - u16 destval,imm; - - DECODE_PRINTF("WORD PTR "); - destoffset = decode_rm01_address(rl); - destval = fetch_data_word(destoffset); - imm = (s8) fetch_byte_imm(); - DECODE_PRINTF2(",%x\n", imm); - TRACE_AND_STEP(); - destval = (*opc83_word_operation[rh]) (destval, imm); - if (rh != 7) - store_data_word(destoffset, destval); - } - break; - case 2: - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - u32 destval,imm; - - DECODE_PRINTF("DWORD PTR "); - destoffset = decode_rm10_address(rl); - destval = fetch_data_long(destoffset); - imm = (s8) fetch_byte_imm(); - DECODE_PRINTF2(",%x\n", imm); - TRACE_AND_STEP(); - destval = (*opc83_long_operation[rh]) (destval, imm); - if (rh != 7) - store_data_long(destoffset, destval); - } else { - u16 destval,imm; - - DECODE_PRINTF("WORD PTR "); - destoffset = decode_rm10_address(rl); - destval = fetch_data_word(destoffset); - imm = (s8) fetch_byte_imm(); - DECODE_PRINTF2(",%x\n", imm); - TRACE_AND_STEP(); - destval = (*opc83_word_operation[rh]) (destval, imm); - if (rh != 7) - store_data_word(destoffset, destval); - } - break; - case 3: /* register to register */ - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - u32 *destreg; - u32 destval,imm; - - destreg = DECODE_RM_LONG_REGISTER(rl); - imm = (s8) fetch_byte_imm(); - DECODE_PRINTF2(",%x\n", imm); - TRACE_AND_STEP(); - destval = (*opc83_long_operation[rh]) (*destreg, imm); - if (rh != 7) - *destreg = destval; - } else { - u16 *destreg; - u16 destval,imm; - - destreg = DECODE_RM_WORD_REGISTER(rl); - imm = (s8) fetch_byte_imm(); - DECODE_PRINTF2(",%x\n", imm); - TRACE_AND_STEP(); - destval = (*opc83_word_operation[rh]) (*destreg, imm); - if (rh != 7) - *destreg = destval; - } - break; - } - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0x84 -****************************************************************************/ -static void x86emuOp_test_byte_RM_R(u8 X86EMU_UNUSED(op1)) -{ - int mod, rl, rh; - u8 *destreg, *srcreg; - uint destoffset; - u8 destval; - - START_OF_INSTR(); - DECODE_PRINTF("TEST\t"); - FETCH_DECODE_MODRM(mod, rh, rl); - switch (mod) { - case 0: - destoffset = decode_rm00_address(rl); - DECODE_PRINTF(","); - destval = fetch_data_byte(destoffset); - srcreg = DECODE_RM_BYTE_REGISTER(rh); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - test_byte(destval, *srcreg); - break; - case 1: - destoffset = decode_rm01_address(rl); - DECODE_PRINTF(","); - destval = fetch_data_byte(destoffset); - srcreg = DECODE_RM_BYTE_REGISTER(rh); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - test_byte(destval, *srcreg); - break; - case 2: - destoffset = decode_rm10_address(rl); - DECODE_PRINTF(","); - destval = fetch_data_byte(destoffset); - srcreg = DECODE_RM_BYTE_REGISTER(rh); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - test_byte(destval, *srcreg); - break; - case 3: /* register to register */ - destreg = DECODE_RM_BYTE_REGISTER(rl); - DECODE_PRINTF(","); - srcreg = DECODE_RM_BYTE_REGISTER(rh); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - test_byte(*destreg, *srcreg); - break; - } - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0x85 -****************************************************************************/ -static void x86emuOp_test_word_RM_R(u8 X86EMU_UNUSED(op1)) -{ - int mod, rl, rh; - uint destoffset; - - START_OF_INSTR(); - DECODE_PRINTF("TEST\t"); - FETCH_DECODE_MODRM(mod, rh, rl); - switch (mod) { - case 0: - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - u32 destval; - u32 *srcreg; - - destoffset = decode_rm00_address(rl); - DECODE_PRINTF(","); - destval = fetch_data_long(destoffset); - srcreg = DECODE_RM_LONG_REGISTER(rh); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - test_long(destval, *srcreg); - } else { - u16 destval; - u16 *srcreg; - - destoffset = decode_rm00_address(rl); - DECODE_PRINTF(","); - destval = fetch_data_word(destoffset); - srcreg = DECODE_RM_WORD_REGISTER(rh); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - test_word(destval, *srcreg); - } - break; - case 1: - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - u32 destval; - u32 *srcreg; - - destoffset = decode_rm01_address(rl); - DECODE_PRINTF(","); - destval = fetch_data_long(destoffset); - srcreg = DECODE_RM_LONG_REGISTER(rh); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - test_long(destval, *srcreg); - } else { - u16 destval; - u16 *srcreg; - - destoffset = decode_rm01_address(rl); - DECODE_PRINTF(","); - destval = fetch_data_word(destoffset); - srcreg = DECODE_RM_WORD_REGISTER(rh); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - test_word(destval, *srcreg); - } - break; - case 2: - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - u32 destval; - u32 *srcreg; - - destoffset = decode_rm10_address(rl); - DECODE_PRINTF(","); - destval = fetch_data_long(destoffset); - srcreg = DECODE_RM_LONG_REGISTER(rh); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - test_long(destval, *srcreg); - } else { - u16 destval; - u16 *srcreg; - - destoffset = decode_rm10_address(rl); - DECODE_PRINTF(","); - destval = fetch_data_word(destoffset); - srcreg = DECODE_RM_WORD_REGISTER(rh); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - test_word(destval, *srcreg); - } - break; - case 3: /* register to register */ - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - u32 *destreg,*srcreg; - - destreg = DECODE_RM_LONG_REGISTER(rl); - DECODE_PRINTF(","); - srcreg = DECODE_RM_LONG_REGISTER(rh); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - test_long(*destreg, *srcreg); - } else { - u16 *destreg,*srcreg; - - destreg = DECODE_RM_WORD_REGISTER(rl); - DECODE_PRINTF(","); - srcreg = DECODE_RM_WORD_REGISTER(rh); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - test_word(*destreg, *srcreg); - } - break; - } - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0x86 -****************************************************************************/ -static void x86emuOp_xchg_byte_RM_R(u8 X86EMU_UNUSED(op1)) -{ - int mod, rl, rh; - u8 *destreg, *srcreg; - uint destoffset; - u8 destval; - u8 tmp; - - START_OF_INSTR(); - DECODE_PRINTF("XCHG\t"); - FETCH_DECODE_MODRM(mod, rh, rl); - switch (mod) { - case 0: - destoffset = decode_rm00_address(rl); - DECODE_PRINTF(","); - destval = fetch_data_byte(destoffset); - srcreg = DECODE_RM_BYTE_REGISTER(rh); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - tmp = *srcreg; - *srcreg = destval; - destval = tmp; - store_data_byte(destoffset, destval); - break; - case 1: - destoffset = decode_rm01_address(rl); - DECODE_PRINTF(","); - destval = fetch_data_byte(destoffset); - srcreg = DECODE_RM_BYTE_REGISTER(rh); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - tmp = *srcreg; - *srcreg = destval; - destval = tmp; - store_data_byte(destoffset, destval); - break; - case 2: - destoffset = decode_rm10_address(rl); - DECODE_PRINTF(","); - destval = fetch_data_byte(destoffset); - srcreg = DECODE_RM_BYTE_REGISTER(rh); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - tmp = *srcreg; - *srcreg = destval; - destval = tmp; - store_data_byte(destoffset, destval); - break; - case 3: /* register to register */ - destreg = DECODE_RM_BYTE_REGISTER(rl); - DECODE_PRINTF(","); - srcreg = DECODE_RM_BYTE_REGISTER(rh); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - tmp = *srcreg; - *srcreg = *destreg; - *destreg = tmp; - break; - } - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0x87 -****************************************************************************/ -static void x86emuOp_xchg_word_RM_R(u8 X86EMU_UNUSED(op1)) -{ - int mod, rl, rh; - uint destoffset; - - START_OF_INSTR(); - DECODE_PRINTF("XCHG\t"); - FETCH_DECODE_MODRM(mod, rh, rl); - switch (mod) { - case 0: - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - u32 *srcreg; - u32 destval,tmp; - - destoffset = decode_rm00_address(rl); - DECODE_PRINTF(","); - destval = fetch_data_long(destoffset); - srcreg = DECODE_RM_LONG_REGISTER(rh); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - tmp = *srcreg; - *srcreg = destval; - destval = tmp; - store_data_long(destoffset, destval); - } else { - u16 *srcreg; - u16 destval,tmp; - - destoffset = decode_rm00_address(rl); - DECODE_PRINTF(","); - destval = fetch_data_word(destoffset); - srcreg = DECODE_RM_WORD_REGISTER(rh); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - tmp = *srcreg; - *srcreg = destval; - destval = tmp; - store_data_word(destoffset, destval); - } - break; - case 1: - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - u32 *srcreg; - u32 destval,tmp; - - destoffset = decode_rm01_address(rl); - DECODE_PRINTF(","); - destval = fetch_data_long(destoffset); - srcreg = DECODE_RM_LONG_REGISTER(rh); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - tmp = *srcreg; - *srcreg = destval; - destval = tmp; - store_data_long(destoffset, destval); - } else { - u16 *srcreg; - u16 destval,tmp; - - destoffset = decode_rm01_address(rl); - DECODE_PRINTF(","); - destval = fetch_data_word(destoffset); - srcreg = DECODE_RM_WORD_REGISTER(rh); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - tmp = *srcreg; - *srcreg = destval; - destval = tmp; - store_data_word(destoffset, destval); - } - break; - case 2: - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - u32 *srcreg; - u32 destval,tmp; - - destoffset = decode_rm10_address(rl); - DECODE_PRINTF(","); - destval = fetch_data_long(destoffset); - srcreg = DECODE_RM_LONG_REGISTER(rh); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - tmp = *srcreg; - *srcreg = destval; - destval = tmp; - store_data_long(destoffset, destval); - } else { - u16 *srcreg; - u16 destval,tmp; - - destoffset = decode_rm10_address(rl); - DECODE_PRINTF(","); - destval = fetch_data_word(destoffset); - srcreg = DECODE_RM_WORD_REGISTER(rh); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - tmp = *srcreg; - *srcreg = destval; - destval = tmp; - store_data_word(destoffset, destval); - } - break; - case 3: /* register to register */ - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - u32 *destreg,*srcreg; - u32 tmp; - - destreg = DECODE_RM_LONG_REGISTER(rl); - DECODE_PRINTF(","); - srcreg = DECODE_RM_LONG_REGISTER(rh); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - tmp = *srcreg; - *srcreg = *destreg; - *destreg = tmp; - } else { - u16 *destreg,*srcreg; - u16 tmp; - - destreg = DECODE_RM_WORD_REGISTER(rl); - DECODE_PRINTF(","); - srcreg = DECODE_RM_WORD_REGISTER(rh); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - tmp = *srcreg; - *srcreg = *destreg; - *destreg = tmp; - } - break; - } - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0x88 -****************************************************************************/ -static void x86emuOp_mov_byte_RM_R(u8 X86EMU_UNUSED(op1)) -{ - int mod, rl, rh; - u8 *destreg, *srcreg; - uint destoffset; - - START_OF_INSTR(); - DECODE_PRINTF("MOV\t"); - FETCH_DECODE_MODRM(mod, rh, rl); - switch (mod) { - case 0: - destoffset = decode_rm00_address(rl); - DECODE_PRINTF(","); - srcreg = DECODE_RM_BYTE_REGISTER(rh); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - store_data_byte(destoffset, *srcreg); - break; - case 1: - destoffset = decode_rm01_address(rl); - DECODE_PRINTF(","); - srcreg = DECODE_RM_BYTE_REGISTER(rh); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - store_data_byte(destoffset, *srcreg); - break; - case 2: - destoffset = decode_rm10_address(rl); - DECODE_PRINTF(","); - srcreg = DECODE_RM_BYTE_REGISTER(rh); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - store_data_byte(destoffset, *srcreg); - break; - case 3: /* register to register */ - destreg = DECODE_RM_BYTE_REGISTER(rl); - DECODE_PRINTF(","); - srcreg = DECODE_RM_BYTE_REGISTER(rh); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - *destreg = *srcreg; - break; - } - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0x89 -****************************************************************************/ -static void x86emuOp_mov_word_RM_R(u8 X86EMU_UNUSED(op1)) -{ - int mod, rl, rh; - u32 destoffset; - - START_OF_INSTR(); - DECODE_PRINTF("MOV\t"); - FETCH_DECODE_MODRM(mod, rh, rl); - switch (mod) { - case 0: - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - u32 *srcreg; - - destoffset = decode_rm00_address(rl); - DECODE_PRINTF(","); - srcreg = DECODE_RM_LONG_REGISTER(rh); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - store_data_long(destoffset, *srcreg); - } else { - u16 *srcreg; - - destoffset = decode_rm00_address(rl); - DECODE_PRINTF(","); - srcreg = DECODE_RM_WORD_REGISTER(rh); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - store_data_word(destoffset, *srcreg); - } - break; - case 1: - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - u32 *srcreg; - - destoffset = decode_rm01_address(rl); - DECODE_PRINTF(","); - srcreg = DECODE_RM_LONG_REGISTER(rh); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - store_data_long(destoffset, *srcreg); - } else { - u16 *srcreg; - - destoffset = decode_rm01_address(rl); - DECODE_PRINTF(","); - srcreg = DECODE_RM_WORD_REGISTER(rh); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - store_data_word(destoffset, *srcreg); - } - break; - case 2: - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - u32 *srcreg; - - destoffset = decode_rm10_address(rl); - DECODE_PRINTF(","); - srcreg = DECODE_RM_LONG_REGISTER(rh); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - store_data_long(destoffset, *srcreg); - } else { - u16 *srcreg; - - destoffset = decode_rm10_address(rl); - DECODE_PRINTF(","); - srcreg = DECODE_RM_WORD_REGISTER(rh); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - store_data_word(destoffset, *srcreg); - } - break; - case 3: /* register to register */ - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - u32 *destreg,*srcreg; - - destreg = DECODE_RM_LONG_REGISTER(rl); - DECODE_PRINTF(","); - srcreg = DECODE_RM_LONG_REGISTER(rh); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - *destreg = *srcreg; - } else { - u16 *destreg,*srcreg; - - destreg = DECODE_RM_WORD_REGISTER(rl); - DECODE_PRINTF(","); - srcreg = DECODE_RM_WORD_REGISTER(rh); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - *destreg = *srcreg; - } - break; - } - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0x8a -****************************************************************************/ -static void x86emuOp_mov_byte_R_RM(u8 X86EMU_UNUSED(op1)) -{ - int mod, rl, rh; - u8 *destreg, *srcreg; - uint srcoffset; - u8 srcval; - - START_OF_INSTR(); - DECODE_PRINTF("MOV\t"); - FETCH_DECODE_MODRM(mod, rh, rl); - switch (mod) { - case 0: - destreg = DECODE_RM_BYTE_REGISTER(rh); - DECODE_PRINTF(","); - srcoffset = decode_rm00_address(rl); - srcval = fetch_data_byte(srcoffset); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - *destreg = srcval; - break; - case 1: - destreg = DECODE_RM_BYTE_REGISTER(rh); - DECODE_PRINTF(","); - srcoffset = decode_rm01_address(rl); - srcval = fetch_data_byte(srcoffset); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - *destreg = srcval; - break; - case 2: - destreg = DECODE_RM_BYTE_REGISTER(rh); - DECODE_PRINTF(","); - srcoffset = decode_rm10_address(rl); - srcval = fetch_data_byte(srcoffset); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - *destreg = srcval; - break; - case 3: /* register to register */ - destreg = DECODE_RM_BYTE_REGISTER(rh); - DECODE_PRINTF(","); - srcreg = DECODE_RM_BYTE_REGISTER(rl); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - *destreg = *srcreg; - break; - } - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0x8b -****************************************************************************/ -static void x86emuOp_mov_word_R_RM(u8 X86EMU_UNUSED(op1)) -{ - int mod, rl, rh; - uint srcoffset; - - START_OF_INSTR(); - DECODE_PRINTF("MOV\t"); - FETCH_DECODE_MODRM(mod, rh, rl); - switch (mod) { - case 0: - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - u32 *destreg; - u32 srcval; - - destreg = DECODE_RM_LONG_REGISTER(rh); - DECODE_PRINTF(","); - srcoffset = decode_rm00_address(rl); - srcval = fetch_data_long(srcoffset); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - *destreg = srcval; - } else { - u16 *destreg; - u16 srcval; - - destreg = DECODE_RM_WORD_REGISTER(rh); - DECODE_PRINTF(","); - srcoffset = decode_rm00_address(rl); - srcval = fetch_data_word(srcoffset); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - *destreg = srcval; - } - break; - case 1: - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - u32 *destreg; - u32 srcval; - - destreg = DECODE_RM_LONG_REGISTER(rh); - DECODE_PRINTF(","); - srcoffset = decode_rm01_address(rl); - srcval = fetch_data_long(srcoffset); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - *destreg = srcval; - } else { - u16 *destreg; - u16 srcval; - - destreg = DECODE_RM_WORD_REGISTER(rh); - DECODE_PRINTF(","); - srcoffset = decode_rm01_address(rl); - srcval = fetch_data_word(srcoffset); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - *destreg = srcval; - } - break; - case 2: - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - u32 *destreg; - u32 srcval; - - destreg = DECODE_RM_LONG_REGISTER(rh); - DECODE_PRINTF(","); - srcoffset = decode_rm10_address(rl); - srcval = fetch_data_long(srcoffset); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - *destreg = srcval; - } else { - u16 *destreg; - u16 srcval; - - destreg = DECODE_RM_WORD_REGISTER(rh); - DECODE_PRINTF(","); - srcoffset = decode_rm10_address(rl); - srcval = fetch_data_word(srcoffset); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - *destreg = srcval; - } - break; - case 3: /* register to register */ - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - u32 *destreg, *srcreg; - - destreg = DECODE_RM_LONG_REGISTER(rh); - DECODE_PRINTF(","); - srcreg = DECODE_RM_LONG_REGISTER(rl); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - *destreg = *srcreg; - } else { - u16 *destreg, *srcreg; - - destreg = DECODE_RM_WORD_REGISTER(rh); - DECODE_PRINTF(","); - srcreg = DECODE_RM_WORD_REGISTER(rl); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - *destreg = *srcreg; - } - break; - } - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0x8c -****************************************************************************/ -static void x86emuOp_mov_word_RM_SR(u8 X86EMU_UNUSED(op1)) -{ - int mod, rl, rh; - u16 *destreg, *srcreg; - uint destoffset; - u16 destval; - - START_OF_INSTR(); - DECODE_PRINTF("MOV\t"); - FETCH_DECODE_MODRM(mod, rh, rl); - switch (mod) { - case 0: - destoffset = decode_rm00_address(rl); - DECODE_PRINTF(","); - srcreg = decode_rm_seg_register(rh); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - destval = *srcreg; - store_data_word(destoffset, destval); - break; - case 1: - destoffset = decode_rm01_address(rl); - DECODE_PRINTF(","); - srcreg = decode_rm_seg_register(rh); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - destval = *srcreg; - store_data_word(destoffset, destval); - break; - case 2: - destoffset = decode_rm10_address(rl); - DECODE_PRINTF(","); - srcreg = decode_rm_seg_register(rh); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - destval = *srcreg; - store_data_word(destoffset, destval); - break; - case 3: /* register to register */ - destreg = DECODE_RM_WORD_REGISTER(rl); - DECODE_PRINTF(","); - srcreg = decode_rm_seg_register(rh); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - *destreg = *srcreg; - break; - } - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0x8d -****************************************************************************/ -static void x86emuOp_lea_word_R_M(u8 X86EMU_UNUSED(op1)) -{ - int mod, rl, rh; - u16 *srcreg; - uint destoffset; - -/* - * TODO: Need to handle address size prefix! - * - * lea eax,[eax+ebx*2] ?? - */ - - START_OF_INSTR(); - DECODE_PRINTF("LEA\t"); - FETCH_DECODE_MODRM(mod, rh, rl); - switch (mod) { - case 0: - srcreg = DECODE_RM_WORD_REGISTER(rh); - DECODE_PRINTF(","); - destoffset = decode_rm00_address(rl); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - *srcreg = (u16)destoffset; - break; - case 1: - srcreg = DECODE_RM_WORD_REGISTER(rh); - DECODE_PRINTF(","); - destoffset = decode_rm01_address(rl); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - *srcreg = (u16)destoffset; - break; - case 2: - srcreg = DECODE_RM_WORD_REGISTER(rh); - DECODE_PRINTF(","); - destoffset = decode_rm10_address(rl); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - *srcreg = (u16)destoffset; - break; - case 3: /* register to register */ - /* undefined. Do nothing. */ - break; - } - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0x8e -****************************************************************************/ -static void x86emuOp_mov_word_SR_RM(u8 X86EMU_UNUSED(op1)) -{ - int mod, rl, rh; - u16 *destreg, *srcreg; - uint srcoffset; - u16 srcval; - - START_OF_INSTR(); - DECODE_PRINTF("MOV\t"); - FETCH_DECODE_MODRM(mod, rh, rl); - switch (mod) { - case 0: - destreg = decode_rm_seg_register(rh); - DECODE_PRINTF(","); - srcoffset = decode_rm00_address(rl); - srcval = fetch_data_word(srcoffset); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - *destreg = srcval; - break; - case 1: - destreg = decode_rm_seg_register(rh); - DECODE_PRINTF(","); - srcoffset = decode_rm01_address(rl); - srcval = fetch_data_word(srcoffset); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - *destreg = srcval; - break; - case 2: - destreg = decode_rm_seg_register(rh); - DECODE_PRINTF(","); - srcoffset = decode_rm10_address(rl); - srcval = fetch_data_word(srcoffset); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - *destreg = srcval; - break; - case 3: /* register to register */ - destreg = decode_rm_seg_register(rh); - DECODE_PRINTF(","); - srcreg = DECODE_RM_WORD_REGISTER(rl); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - *destreg = *srcreg; - break; - } - /* - * Clean up, and reset all the R_xSP pointers to the correct - * locations. This is about 3x too much overhead (doing all the - * segreg ptrs when only one is needed, but this instruction - * *cannot* be that common, and this isn't too much work anyway. - */ - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0x8f -****************************************************************************/ -static void x86emuOp_pop_RM(u8 X86EMU_UNUSED(op1)) -{ - int mod, rl, rh; - uint destoffset; - - START_OF_INSTR(); - DECODE_PRINTF("POP\t"); - FETCH_DECODE_MODRM(mod, rh, rl); - if (rh != 0) { - DECODE_PRINTF("ILLEGAL DECODE OF OPCODE 8F\n"); - HALT_SYS(); - } - switch (mod) { - case 0: - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - u32 destval; - - destoffset = decode_rm00_address(rl); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - destval = pop_long(); - store_data_long(destoffset, destval); - } else { - u16 destval; - - destoffset = decode_rm00_address(rl); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - destval = pop_word(); - store_data_word(destoffset, destval); - } - break; - case 1: - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - u32 destval; - - destoffset = decode_rm01_address(rl); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - destval = pop_long(); - store_data_long(destoffset, destval); - } else { - u16 destval; - - destoffset = decode_rm01_address(rl); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - destval = pop_word(); - store_data_word(destoffset, destval); - } - break; - case 2: - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - u32 destval; - - destoffset = decode_rm10_address(rl); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - destval = pop_long(); - store_data_long(destoffset, destval); - } else { - u16 destval; - - destoffset = decode_rm10_address(rl); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - destval = pop_word(); - store_data_word(destoffset, destval); - } - break; - case 3: /* register to register */ - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - u32 *destreg; - - destreg = DECODE_RM_LONG_REGISTER(rl); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - *destreg = pop_long(); - } else { - u16 *destreg; - - destreg = DECODE_RM_WORD_REGISTER(rl); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - *destreg = pop_word(); - } - break; - } - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0x90 -****************************************************************************/ -static void x86emuOp_nop(u8 X86EMU_UNUSED(op1)) -{ - START_OF_INSTR(); - DECODE_PRINTF("NOP\n"); - TRACE_AND_STEP(); - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0x91 -****************************************************************************/ -static void x86emuOp_xchg_word_AX_CX(u8 X86EMU_UNUSED(op1)) -{ - u32 tmp; - - START_OF_INSTR(); - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - DECODE_PRINTF("XCHG\tEAX,ECX\n"); - } else { - DECODE_PRINTF("XCHG\tAX,CX\n"); - } - TRACE_AND_STEP(); - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - tmp = M.x86.R_EAX; - M.x86.R_EAX = M.x86.R_ECX; - M.x86.R_ECX = tmp; - } else { - tmp = M.x86.R_AX; - M.x86.R_AX = M.x86.R_CX; - M.x86.R_CX = (u16)tmp; - } - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0x92 -****************************************************************************/ -static void x86emuOp_xchg_word_AX_DX(u8 X86EMU_UNUSED(op1)) -{ - u32 tmp; - - START_OF_INSTR(); - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - DECODE_PRINTF("XCHG\tEAX,EDX\n"); - } else { - DECODE_PRINTF("XCHG\tAX,DX\n"); - } - TRACE_AND_STEP(); - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - tmp = M.x86.R_EAX; - M.x86.R_EAX = M.x86.R_EDX; - M.x86.R_EDX = tmp; - } else { - tmp = M.x86.R_AX; - M.x86.R_AX = M.x86.R_DX; - M.x86.R_DX = (u16)tmp; - } - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0x93 -****************************************************************************/ -static void x86emuOp_xchg_word_AX_BX(u8 X86EMU_UNUSED(op1)) -{ - u32 tmp; - - START_OF_INSTR(); - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - DECODE_PRINTF("XCHG\tEAX,EBX\n"); - } else { - DECODE_PRINTF("XCHG\tAX,BX\n"); - } - TRACE_AND_STEP(); - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - tmp = M.x86.R_EAX; - M.x86.R_EAX = M.x86.R_EBX; - M.x86.R_EBX = tmp; - } else { - tmp = M.x86.R_AX; - M.x86.R_AX = M.x86.R_BX; - M.x86.R_BX = (u16)tmp; - } - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0x94 -****************************************************************************/ -static void x86emuOp_xchg_word_AX_SP(u8 X86EMU_UNUSED(op1)) -{ - u32 tmp; - - START_OF_INSTR(); - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - DECODE_PRINTF("XCHG\tEAX,ESP\n"); - } else { - DECODE_PRINTF("XCHG\tAX,SP\n"); - } - TRACE_AND_STEP(); - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - tmp = M.x86.R_EAX; - M.x86.R_EAX = M.x86.R_ESP; - M.x86.R_ESP = tmp; - } else { - tmp = M.x86.R_AX; - M.x86.R_AX = M.x86.R_SP; - M.x86.R_SP = (u16)tmp; - } - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0x95 -****************************************************************************/ -static void x86emuOp_xchg_word_AX_BP(u8 X86EMU_UNUSED(op1)) -{ - u32 tmp; - - START_OF_INSTR(); - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - DECODE_PRINTF("XCHG\tEAX,EBP\n"); - } else { - DECODE_PRINTF("XCHG\tAX,BP\n"); - } - TRACE_AND_STEP(); - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - tmp = M.x86.R_EAX; - M.x86.R_EAX = M.x86.R_EBP; - M.x86.R_EBP = tmp; - } else { - tmp = M.x86.R_AX; - M.x86.R_AX = M.x86.R_BP; - M.x86.R_BP = (u16)tmp; - } - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0x96 -****************************************************************************/ -static void x86emuOp_xchg_word_AX_SI(u8 X86EMU_UNUSED(op1)) -{ - u32 tmp; - - START_OF_INSTR(); - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - DECODE_PRINTF("XCHG\tEAX,ESI\n"); - } else { - DECODE_PRINTF("XCHG\tAX,SI\n"); - } - TRACE_AND_STEP(); - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - tmp = M.x86.R_EAX; - M.x86.R_EAX = M.x86.R_ESI; - M.x86.R_ESI = tmp; - } else { - tmp = M.x86.R_AX; - M.x86.R_AX = M.x86.R_SI; - M.x86.R_SI = (u16)tmp; - } - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0x97 -****************************************************************************/ -static void x86emuOp_xchg_word_AX_DI(u8 X86EMU_UNUSED(op1)) -{ - u32 tmp; - - START_OF_INSTR(); - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - DECODE_PRINTF("XCHG\tEAX,EDI\n"); - } else { - DECODE_PRINTF("XCHG\tAX,DI\n"); - } - TRACE_AND_STEP(); - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - tmp = M.x86.R_EAX; - M.x86.R_EAX = M.x86.R_EDI; - M.x86.R_EDI = tmp; - } else { - tmp = M.x86.R_AX; - M.x86.R_AX = M.x86.R_DI; - M.x86.R_DI = (u16)tmp; - } - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0x98 -****************************************************************************/ -static void x86emuOp_cbw(u8 X86EMU_UNUSED(op1)) -{ - START_OF_INSTR(); - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - DECODE_PRINTF("CWDE\n"); - } else { - DECODE_PRINTF("CBW\n"); - } - TRACE_AND_STEP(); - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - if (M.x86.R_AX & 0x8000) { - M.x86.R_EAX |= 0xffff0000; - } else { - M.x86.R_EAX &= 0x0000ffff; - } - } else { - if (M.x86.R_AL & 0x80) { - M.x86.R_AH = 0xff; - } else { - M.x86.R_AH = 0x0; - } - } - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0x99 -****************************************************************************/ -static void x86emuOp_cwd(u8 X86EMU_UNUSED(op1)) -{ - START_OF_INSTR(); - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - DECODE_PRINTF("CDQ\n"); - } else { - DECODE_PRINTF("CWD\n"); - } - DECODE_PRINTF("CWD\n"); - TRACE_AND_STEP(); - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - if (M.x86.R_EAX & 0x80000000) { - M.x86.R_EDX = 0xffffffff; - } else { - M.x86.R_EDX = 0x0; - } - } else { - if (M.x86.R_AX & 0x8000) { - M.x86.R_DX = 0xffff; - } else { - M.x86.R_DX = 0x0; - } - } - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0x9a -****************************************************************************/ -static void x86emuOp_call_far_IMM(u8 X86EMU_UNUSED(op1)) -{ - u16 farseg, faroff; - - START_OF_INSTR(); - DECODE_PRINTF("CALL\t"); - faroff = fetch_word_imm(); - farseg = fetch_word_imm(); - DECODE_PRINTF2("%04x:", farseg); - DECODE_PRINTF2("%04x\n", faroff); - CALL_TRACE(M.x86.saved_cs, M.x86.saved_ip, farseg, faroff, "FAR "); - - /* XXX - * - * Hooked interrupt vectors calling into our "BIOS" will cause - * problems unless all intersegment stuff is checked for BIOS - * access. Check needed here. For moment, let it alone. - */ - TRACE_AND_STEP(); - push_word(M.x86.R_CS); - M.x86.R_CS = farseg; - push_word(M.x86.R_IP); - M.x86.R_IP = faroff; - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0x9b -****************************************************************************/ -static void x86emuOp_wait(u8 X86EMU_UNUSED(op1)) -{ - START_OF_INSTR(); - DECODE_PRINTF("WAIT"); - TRACE_AND_STEP(); - /* NADA. */ - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0x9c -****************************************************************************/ -static void x86emuOp_pushf_word(u8 X86EMU_UNUSED(op1)) -{ - u32 flags; - - START_OF_INSTR(); - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - DECODE_PRINTF("PUSHFD\n"); - } else { - DECODE_PRINTF("PUSHF\n"); - } - TRACE_AND_STEP(); - - /* clear out *all* bits not representing flags, and turn on real bits */ - flags = (M.x86.R_EFLG & F_MSK) | F_ALWAYS_ON; - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - push_long(flags); - } else { - push_word((u16)flags); - } - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0x9d -****************************************************************************/ -static void x86emuOp_popf_word(u8 X86EMU_UNUSED(op1)) -{ - START_OF_INSTR(); - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - DECODE_PRINTF("POPFD\n"); - } else { - DECODE_PRINTF("POPF\n"); - } - TRACE_AND_STEP(); - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - M.x86.R_EFLG = pop_long(); - } else { - M.x86.R_FLG = pop_word(); - } - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0x9e -****************************************************************************/ -static void x86emuOp_sahf(u8 X86EMU_UNUSED(op1)) -{ - START_OF_INSTR(); - DECODE_PRINTF("SAHF\n"); - TRACE_AND_STEP(); - /* clear the lower bits of the flag register */ - M.x86.R_FLG &= 0xffffff00; - /* or in the AH register into the flags register */ - M.x86.R_FLG |= M.x86.R_AH; - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0x9f -****************************************************************************/ -static void x86emuOp_lahf(u8 X86EMU_UNUSED(op1)) -{ - START_OF_INSTR(); - DECODE_PRINTF("LAHF\n"); - TRACE_AND_STEP(); - M.x86.R_AH = (u8)(M.x86.R_FLG & 0xff); - /*undocumented TC++ behavior??? Nope. It's documented, but - you have too look real hard to notice it. */ - M.x86.R_AH |= 0x2; - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0xa0 -****************************************************************************/ -static void x86emuOp_mov_AL_M_IMM(u8 X86EMU_UNUSED(op1)) -{ - u16 offset; - - START_OF_INSTR(); - DECODE_PRINTF("MOV\tAL,"); - offset = fetch_word_imm(); - DECODE_PRINTF2("[%04x]\n", offset); - TRACE_AND_STEP(); - M.x86.R_AL = fetch_data_byte(offset); - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0xa1 -****************************************************************************/ -static void x86emuOp_mov_AX_M_IMM(u8 X86EMU_UNUSED(op1)) -{ - u16 offset; - - START_OF_INSTR(); - offset = fetch_word_imm(); - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - DECODE_PRINTF2("MOV\tEAX,[%04x]\n", offset); - } else { - DECODE_PRINTF2("MOV\tAX,[%04x]\n", offset); - } - TRACE_AND_STEP(); - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - M.x86.R_EAX = fetch_data_long(offset); - } else { - M.x86.R_AX = fetch_data_word(offset); - } - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0xa2 -****************************************************************************/ -static void x86emuOp_mov_M_AL_IMM(u8 X86EMU_UNUSED(op1)) -{ - u16 offset; - - START_OF_INSTR(); - DECODE_PRINTF("MOV\t"); - offset = fetch_word_imm(); - DECODE_PRINTF2("[%04x],AL\n", offset); - TRACE_AND_STEP(); - store_data_byte(offset, M.x86.R_AL); - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0xa3 -****************************************************************************/ -static void x86emuOp_mov_M_AX_IMM(u8 X86EMU_UNUSED(op1)) -{ - u16 offset; - - START_OF_INSTR(); - offset = fetch_word_imm(); - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - DECODE_PRINTF2("MOV\t[%04x],EAX\n", offset); - } else { - DECODE_PRINTF2("MOV\t[%04x],AX\n", offset); - } - TRACE_AND_STEP(); - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - store_data_long(offset, M.x86.R_EAX); - } else { - store_data_word(offset, M.x86.R_AX); - } - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0xa4 -****************************************************************************/ -static void x86emuOp_movs_byte(u8 X86EMU_UNUSED(op1)) -{ - u8 val; - u32 count; - int inc; - - START_OF_INSTR(); - DECODE_PRINTF("MOVS\tBYTE\n"); - if (ACCESS_FLAG(F_DF)) /* down */ - inc = -1; - else - inc = 1; - TRACE_AND_STEP(); - count = 1; - if (M.x86.mode & (SYSMODE_PREFIX_REPE | SYSMODE_PREFIX_REPNE)) { - /* dont care whether REPE or REPNE */ - /* move them until CX is ZERO. */ - count = M.x86.R_CX; - M.x86.R_CX = 0; - M.x86.mode &= ~(SYSMODE_PREFIX_REPE | SYSMODE_PREFIX_REPNE); - } - while (count--) { - val = fetch_data_byte(M.x86.R_SI); - store_data_byte_abs(M.x86.R_ES, M.x86.R_DI, val); - M.x86.R_SI += inc; - M.x86.R_DI += inc; - } - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0xa5 -****************************************************************************/ -static void x86emuOp_movs_word(u8 X86EMU_UNUSED(op1)) -{ - u32 val; - int inc; - u32 count; - - START_OF_INSTR(); - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - DECODE_PRINTF("MOVS\tDWORD\n"); - if (ACCESS_FLAG(F_DF)) /* down */ - inc = -4; - else - inc = 4; - } else { - DECODE_PRINTF("MOVS\tWORD\n"); - if (ACCESS_FLAG(F_DF)) /* down */ - inc = -2; - else - inc = 2; - } - TRACE_AND_STEP(); - count = 1; - if (M.x86.mode & (SYSMODE_PREFIX_REPE | SYSMODE_PREFIX_REPNE)) { - /* dont care whether REPE or REPNE */ - /* move them until CX is ZERO. */ - count = M.x86.R_CX; - M.x86.R_CX = 0; - M.x86.mode &= ~(SYSMODE_PREFIX_REPE | SYSMODE_PREFIX_REPNE); - } - while (count--) { - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - val = fetch_data_long(M.x86.R_SI); - store_data_long_abs(M.x86.R_ES, M.x86.R_DI, val); - } else { - val = fetch_data_word(M.x86.R_SI); - store_data_word_abs(M.x86.R_ES, M.x86.R_DI, (u16)val); - } - M.x86.R_SI += inc; - M.x86.R_DI += inc; - } - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0xa6 -****************************************************************************/ -static void x86emuOp_cmps_byte(u8 X86EMU_UNUSED(op1)) -{ - s8 val1, val2; - int inc; - - START_OF_INSTR(); - DECODE_PRINTF("CMPS\tBYTE\n"); - TRACE_AND_STEP(); - if (ACCESS_FLAG(F_DF)) /* down */ - inc = -1; - else - inc = 1; - - if (M.x86.mode & SYSMODE_PREFIX_REPE) { - /* REPE */ - /* move them until CX is ZERO. */ - while (M.x86.R_CX != 0) { - val1 = fetch_data_byte(M.x86.R_SI); - val2 = fetch_data_byte_abs(M.x86.R_ES, M.x86.R_DI); - cmp_byte(val1, val2); - M.x86.R_CX -= 1; - M.x86.R_SI += inc; - M.x86.R_DI += inc; - if (ACCESS_FLAG(F_ZF) == 0) - break; - } - M.x86.mode &= ~SYSMODE_PREFIX_REPE; - } else if (M.x86.mode & SYSMODE_PREFIX_REPNE) { - /* REPNE */ - /* move them until CX is ZERO. */ - while (M.x86.R_CX != 0) { - val1 = fetch_data_byte(M.x86.R_SI); - val2 = fetch_data_byte_abs(M.x86.R_ES, M.x86.R_DI); - cmp_byte(val1, val2); - M.x86.R_CX -= 1; - M.x86.R_SI += inc; - M.x86.R_DI += inc; - if (ACCESS_FLAG(F_ZF)) - break; /* zero flag set means equal */ - } - M.x86.mode &= ~SYSMODE_PREFIX_REPNE; - } else { - val1 = fetch_data_byte(M.x86.R_SI); - val2 = fetch_data_byte_abs(M.x86.R_ES, M.x86.R_DI); - cmp_byte(val1, val2); - M.x86.R_SI += inc; - M.x86.R_DI += inc; - } - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0xa7 -****************************************************************************/ -static void x86emuOp_cmps_word(u8 X86EMU_UNUSED(op1)) -{ - u32 val1,val2; - int inc; - - START_OF_INSTR(); - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - DECODE_PRINTF("CMPS\tDWORD\n"); - if (ACCESS_FLAG(F_DF)) /* down */ - inc = -4; - else - inc = 4; - } else { - DECODE_PRINTF("CMPS\tWORD\n"); - if (ACCESS_FLAG(F_DF)) /* down */ - inc = -2; - else - inc = 2; - } - TRACE_AND_STEP(); - if (M.x86.mode & SYSMODE_PREFIX_REPE) { - /* REPE */ - /* move them until CX is ZERO. */ - while (M.x86.R_CX != 0) { - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - val1 = fetch_data_long(M.x86.R_SI); - val2 = fetch_data_long_abs(M.x86.R_ES, M.x86.R_DI); - cmp_long(val1, val2); - } else { - val1 = fetch_data_word(M.x86.R_SI); - val2 = fetch_data_word_abs(M.x86.R_ES, M.x86.R_DI); - cmp_word((u16)val1, (u16)val2); - } - M.x86.R_CX -= 1; - M.x86.R_SI += inc; - M.x86.R_DI += inc; - if (ACCESS_FLAG(F_ZF) == 0) - break; - } - M.x86.mode &= ~SYSMODE_PREFIX_REPE; - } else if (M.x86.mode & SYSMODE_PREFIX_REPNE) { - /* REPNE */ - /* move them until CX is ZERO. */ - while (M.x86.R_CX != 0) { - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - val1 = fetch_data_long(M.x86.R_SI); - val2 = fetch_data_long_abs(M.x86.R_ES, M.x86.R_DI); - cmp_long(val1, val2); - } else { - val1 = fetch_data_word(M.x86.R_SI); - val2 = fetch_data_word_abs(M.x86.R_ES, M.x86.R_DI); - cmp_word((u16)val1, (u16)val2); - } - M.x86.R_CX -= 1; - M.x86.R_SI += inc; - M.x86.R_DI += inc; - if (ACCESS_FLAG(F_ZF)) - break; /* zero flag set means equal */ - } - M.x86.mode &= ~SYSMODE_PREFIX_REPNE; - } else { - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - val1 = fetch_data_long(M.x86.R_SI); - val2 = fetch_data_long_abs(M.x86.R_ES, M.x86.R_DI); - cmp_long(val1, val2); - } else { - val1 = fetch_data_word(M.x86.R_SI); - val2 = fetch_data_word_abs(M.x86.R_ES, M.x86.R_DI); - cmp_word((u16)val1, (u16)val2); - } - M.x86.R_SI += inc; - M.x86.R_DI += inc; - } - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0xa8 -****************************************************************************/ -static void x86emuOp_test_AL_IMM(u8 X86EMU_UNUSED(op1)) -{ - int imm; - - START_OF_INSTR(); - DECODE_PRINTF("TEST\tAL,"); - imm = fetch_byte_imm(); - DECODE_PRINTF2("%04x\n", imm); - TRACE_AND_STEP(); - test_byte(M.x86.R_AL, (u8)imm); - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0xa9 -****************************************************************************/ -static void x86emuOp_test_AX_IMM(u8 X86EMU_UNUSED(op1)) -{ - u32 srcval; - - START_OF_INSTR(); - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - DECODE_PRINTF("TEST\tEAX,"); - srcval = fetch_long_imm(); - } else { - DECODE_PRINTF("TEST\tAX,"); - srcval = fetch_word_imm(); - } - DECODE_PRINTF2("%x\n", srcval); - TRACE_AND_STEP(); - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - test_long(M.x86.R_EAX, srcval); - } else { - test_word(M.x86.R_AX, (u16)srcval); - } - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0xaa -****************************************************************************/ -static void x86emuOp_stos_byte(u8 X86EMU_UNUSED(op1)) -{ - int inc; - - START_OF_INSTR(); - DECODE_PRINTF("STOS\tBYTE\n"); - if (ACCESS_FLAG(F_DF)) /* down */ - inc = -1; - else - inc = 1; - TRACE_AND_STEP(); - if (M.x86.mode & (SYSMODE_PREFIX_REPE | SYSMODE_PREFIX_REPNE)) { - /* dont care whether REPE or REPNE */ - /* move them until CX is ZERO. */ - while (M.x86.R_CX != 0) { - store_data_byte_abs(M.x86.R_ES, M.x86.R_DI, M.x86.R_AL); - M.x86.R_CX -= 1; - M.x86.R_DI += inc; - } - M.x86.mode &= ~(SYSMODE_PREFIX_REPE | SYSMODE_PREFIX_REPNE); - } else { - store_data_byte_abs(M.x86.R_ES, M.x86.R_DI, M.x86.R_AL); - M.x86.R_DI += inc; - } - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0xab -****************************************************************************/ -static void x86emuOp_stos_word(u8 X86EMU_UNUSED(op1)) -{ - int inc; - u32 count; - - START_OF_INSTR(); - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - DECODE_PRINTF("STOS\tDWORD\n"); - if (ACCESS_FLAG(F_DF)) /* down */ - inc = -4; - else - inc = 4; - } else { - DECODE_PRINTF("STOS\tWORD\n"); - if (ACCESS_FLAG(F_DF)) /* down */ - inc = -2; - else - inc = 2; - } - TRACE_AND_STEP(); - count = 1; - if (M.x86.mode & (SYSMODE_PREFIX_REPE | SYSMODE_PREFIX_REPNE)) { - /* dont care whether REPE or REPNE */ - /* move them until CX is ZERO. */ - count = M.x86.R_CX; - M.x86.R_CX = 0; - M.x86.mode &= ~(SYSMODE_PREFIX_REPE | SYSMODE_PREFIX_REPNE); - } - while (count--) { - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - store_data_long_abs(M.x86.R_ES, M.x86.R_DI, M.x86.R_EAX); - } else { - store_data_word_abs(M.x86.R_ES, M.x86.R_DI, M.x86.R_AX); - } - M.x86.R_DI += inc; - } - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0xac -****************************************************************************/ -static void x86emuOp_lods_byte(u8 X86EMU_UNUSED(op1)) -{ - int inc; - - START_OF_INSTR(); - DECODE_PRINTF("LODS\tBYTE\n"); - TRACE_AND_STEP(); - if (ACCESS_FLAG(F_DF)) /* down */ - inc = -1; - else - inc = 1; - if (M.x86.mode & (SYSMODE_PREFIX_REPE | SYSMODE_PREFIX_REPNE)) { - /* dont care whether REPE or REPNE */ - /* move them until CX is ZERO. */ - while (M.x86.R_CX != 0) { - M.x86.R_AL = fetch_data_byte(M.x86.R_SI); - M.x86.R_CX -= 1; - M.x86.R_SI += inc; - } - M.x86.mode &= ~(SYSMODE_PREFIX_REPE | SYSMODE_PREFIX_REPNE); - } else { - M.x86.R_AL = fetch_data_byte(M.x86.R_SI); - M.x86.R_SI += inc; - } - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0xad -****************************************************************************/ -static void x86emuOp_lods_word(u8 X86EMU_UNUSED(op1)) -{ - int inc; - u32 count; - - START_OF_INSTR(); - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - DECODE_PRINTF("LODS\tDWORD\n"); - if (ACCESS_FLAG(F_DF)) /* down */ - inc = -4; - else - inc = 4; - } else { - DECODE_PRINTF("LODS\tWORD\n"); - if (ACCESS_FLAG(F_DF)) /* down */ - inc = -2; - else - inc = 2; - } - TRACE_AND_STEP(); - count = 1; - if (M.x86.mode & (SYSMODE_PREFIX_REPE | SYSMODE_PREFIX_REPNE)) { - /* dont care whether REPE or REPNE */ - /* move them until CX is ZERO. */ - count = M.x86.R_CX; - M.x86.R_CX = 0; - M.x86.mode &= ~(SYSMODE_PREFIX_REPE | SYSMODE_PREFIX_REPNE); - } - while (count--) { - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - M.x86.R_EAX = fetch_data_long(M.x86.R_SI); - } else { - M.x86.R_AX = fetch_data_word(M.x86.R_SI); - } - M.x86.R_SI += inc; - } - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0xae -****************************************************************************/ -static void x86emuOp_scas_byte(u8 X86EMU_UNUSED(op1)) -{ - s8 val2; - int inc; - - START_OF_INSTR(); - DECODE_PRINTF("SCAS\tBYTE\n"); - TRACE_AND_STEP(); - if (ACCESS_FLAG(F_DF)) /* down */ - inc = -1; - else - inc = 1; - if (M.x86.mode & SYSMODE_PREFIX_REPE) { - /* REPE */ - /* move them until CX is ZERO. */ - while (M.x86.R_CX != 0) { - val2 = fetch_data_byte_abs(M.x86.R_ES, M.x86.R_DI); - cmp_byte(M.x86.R_AL, val2); - M.x86.R_CX -= 1; - M.x86.R_DI += inc; - if (ACCESS_FLAG(F_ZF) == 0) - break; - } - M.x86.mode &= ~SYSMODE_PREFIX_REPE; - } else if (M.x86.mode & SYSMODE_PREFIX_REPNE) { - /* REPNE */ - /* move them until CX is ZERO. */ - while (M.x86.R_CX != 0) { - val2 = fetch_data_byte_abs(M.x86.R_ES, M.x86.R_DI); - cmp_byte(M.x86.R_AL, val2); - M.x86.R_CX -= 1; - M.x86.R_DI += inc; - if (ACCESS_FLAG(F_ZF)) - break; /* zero flag set means equal */ - } - M.x86.mode &= ~SYSMODE_PREFIX_REPNE; - } else { - val2 = fetch_data_byte_abs(M.x86.R_ES, M.x86.R_DI); - cmp_byte(M.x86.R_AL, val2); - M.x86.R_DI += inc; - } - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0xaf -****************************************************************************/ -static void x86emuOp_scas_word(u8 X86EMU_UNUSED(op1)) -{ - int inc; - u32 val; - - START_OF_INSTR(); - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - DECODE_PRINTF("SCAS\tDWORD\n"); - if (ACCESS_FLAG(F_DF)) /* down */ - inc = -4; - else - inc = 4; - } else { - DECODE_PRINTF("SCAS\tWORD\n"); - if (ACCESS_FLAG(F_DF)) /* down */ - inc = -2; - else - inc = 2; - } - TRACE_AND_STEP(); - if (M.x86.mode & SYSMODE_PREFIX_REPE) { - /* REPE */ - /* move them until CX is ZERO. */ - while (M.x86.R_CX != 0) { - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - val = fetch_data_long_abs(M.x86.R_ES, M.x86.R_DI); - cmp_long(M.x86.R_EAX, val); - } else { - val = fetch_data_word_abs(M.x86.R_ES, M.x86.R_DI); - cmp_word(M.x86.R_AX, (u16)val); - } - M.x86.R_CX -= 1; - M.x86.R_DI += inc; - if (ACCESS_FLAG(F_ZF) == 0) - break; - } - M.x86.mode &= ~SYSMODE_PREFIX_REPE; - } else if (M.x86.mode & SYSMODE_PREFIX_REPNE) { - /* REPNE */ - /* move them until CX is ZERO. */ - while (M.x86.R_CX != 0) { - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - val = fetch_data_long_abs(M.x86.R_ES, M.x86.R_DI); - cmp_long(M.x86.R_EAX, val); - } else { - val = fetch_data_word_abs(M.x86.R_ES, M.x86.R_DI); - cmp_word(M.x86.R_AX, (u16)val); - } - M.x86.R_CX -= 1; - M.x86.R_DI += inc; - if (ACCESS_FLAG(F_ZF)) - break; /* zero flag set means equal */ - } - M.x86.mode &= ~SYSMODE_PREFIX_REPNE; - } else { - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - val = fetch_data_long_abs(M.x86.R_ES, M.x86.R_DI); - cmp_long(M.x86.R_EAX, val); - } else { - val = fetch_data_word_abs(M.x86.R_ES, M.x86.R_DI); - cmp_word(M.x86.R_AX, (u16)val); - } - M.x86.R_DI += inc; - } - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0xb0 -****************************************************************************/ -static void x86emuOp_mov_byte_AL_IMM(u8 X86EMU_UNUSED(op1)) -{ - u8 imm; - - START_OF_INSTR(); - DECODE_PRINTF("MOV\tAL,"); - imm = fetch_byte_imm(); - DECODE_PRINTF2("%x\n", imm); - TRACE_AND_STEP(); - M.x86.R_AL = imm; - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0xb1 -****************************************************************************/ -static void x86emuOp_mov_byte_CL_IMM(u8 X86EMU_UNUSED(op1)) -{ - u8 imm; - - START_OF_INSTR(); - DECODE_PRINTF("MOV\tCL,"); - imm = fetch_byte_imm(); - DECODE_PRINTF2("%x\n", imm); - TRACE_AND_STEP(); - M.x86.R_CL = imm; - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0xb2 -****************************************************************************/ -static void x86emuOp_mov_byte_DL_IMM(u8 X86EMU_UNUSED(op1)) -{ - u8 imm; - - START_OF_INSTR(); - DECODE_PRINTF("MOV\tDL,"); - imm = fetch_byte_imm(); - DECODE_PRINTF2("%x\n", imm); - TRACE_AND_STEP(); - M.x86.R_DL = imm; - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0xb3 -****************************************************************************/ -static void x86emuOp_mov_byte_BL_IMM(u8 X86EMU_UNUSED(op1)) -{ - u8 imm; - - START_OF_INSTR(); - DECODE_PRINTF("MOV\tBL,"); - imm = fetch_byte_imm(); - DECODE_PRINTF2("%x\n", imm); - TRACE_AND_STEP(); - M.x86.R_BL = imm; - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0xb4 -****************************************************************************/ -static void x86emuOp_mov_byte_AH_IMM(u8 X86EMU_UNUSED(op1)) -{ - u8 imm; - - START_OF_INSTR(); - DECODE_PRINTF("MOV\tAH,"); - imm = fetch_byte_imm(); - DECODE_PRINTF2("%x\n", imm); - TRACE_AND_STEP(); - M.x86.R_AH = imm; - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0xb5 -****************************************************************************/ -static void x86emuOp_mov_byte_CH_IMM(u8 X86EMU_UNUSED(op1)) -{ - u8 imm; - - START_OF_INSTR(); - DECODE_PRINTF("MOV\tCH,"); - imm = fetch_byte_imm(); - DECODE_PRINTF2("%x\n", imm); - TRACE_AND_STEP(); - M.x86.R_CH = imm; - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0xb6 -****************************************************************************/ -static void x86emuOp_mov_byte_DH_IMM(u8 X86EMU_UNUSED(op1)) -{ - u8 imm; - - START_OF_INSTR(); - DECODE_PRINTF("MOV\tDH,"); - imm = fetch_byte_imm(); - DECODE_PRINTF2("%x\n", imm); - TRACE_AND_STEP(); - M.x86.R_DH = imm; - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0xb7 -****************************************************************************/ -static void x86emuOp_mov_byte_BH_IMM(u8 X86EMU_UNUSED(op1)) -{ - u8 imm; - - START_OF_INSTR(); - DECODE_PRINTF("MOV\tBH,"); - imm = fetch_byte_imm(); - DECODE_PRINTF2("%x\n", imm); - TRACE_AND_STEP(); - M.x86.R_BH = imm; - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0xb8 -****************************************************************************/ -static void x86emuOp_mov_word_AX_IMM(u8 X86EMU_UNUSED(op1)) -{ - u32 srcval; - - START_OF_INSTR(); - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - DECODE_PRINTF("MOV\tEAX,"); - srcval = fetch_long_imm(); - } else { - DECODE_PRINTF("MOV\tAX,"); - srcval = fetch_word_imm(); - } - DECODE_PRINTF2("%x\n", srcval); - TRACE_AND_STEP(); - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - M.x86.R_EAX = srcval; - } else { - M.x86.R_AX = (u16)srcval; - } - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0xb9 -****************************************************************************/ -static void x86emuOp_mov_word_CX_IMM(u8 X86EMU_UNUSED(op1)) -{ - u32 srcval; - - START_OF_INSTR(); - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - DECODE_PRINTF("MOV\tECX,"); - srcval = fetch_long_imm(); - } else { - DECODE_PRINTF("MOV\tCX,"); - srcval = fetch_word_imm(); - } - DECODE_PRINTF2("%x\n", srcval); - TRACE_AND_STEP(); - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - M.x86.R_ECX = srcval; - } else { - M.x86.R_CX = (u16)srcval; - } - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0xba -****************************************************************************/ -static void x86emuOp_mov_word_DX_IMM(u8 X86EMU_UNUSED(op1)) -{ - u32 srcval; - - START_OF_INSTR(); - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - DECODE_PRINTF("MOV\tEDX,"); - srcval = fetch_long_imm(); - } else { - DECODE_PRINTF("MOV\tDX,"); - srcval = fetch_word_imm(); - } - DECODE_PRINTF2("%x\n", srcval); - TRACE_AND_STEP(); - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - M.x86.R_EDX = srcval; - } else { - M.x86.R_DX = (u16)srcval; - } - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0xbb -****************************************************************************/ -static void x86emuOp_mov_word_BX_IMM(u8 X86EMU_UNUSED(op1)) -{ - u32 srcval; - - START_OF_INSTR(); - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - DECODE_PRINTF("MOV\tEBX,"); - srcval = fetch_long_imm(); - } else { - DECODE_PRINTF("MOV\tBX,"); - srcval = fetch_word_imm(); - } - DECODE_PRINTF2("%x\n", srcval); - TRACE_AND_STEP(); - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - M.x86.R_EBX = srcval; - } else { - M.x86.R_BX = (u16)srcval; - } - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0xbc -****************************************************************************/ -static void x86emuOp_mov_word_SP_IMM(u8 X86EMU_UNUSED(op1)) -{ - u32 srcval; - - START_OF_INSTR(); - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - DECODE_PRINTF("MOV\tESP,"); - srcval = fetch_long_imm(); - } else { - DECODE_PRINTF("MOV\tSP,"); - srcval = fetch_word_imm(); - } - DECODE_PRINTF2("%x\n", srcval); - TRACE_AND_STEP(); - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - M.x86.R_ESP = srcval; - } else { - M.x86.R_SP = (u16)srcval; - } - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0xbd -****************************************************************************/ -static void x86emuOp_mov_word_BP_IMM(u8 X86EMU_UNUSED(op1)) -{ - u32 srcval; - - START_OF_INSTR(); - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - DECODE_PRINTF("MOV\tEBP,"); - srcval = fetch_long_imm(); - } else { - DECODE_PRINTF("MOV\tBP,"); - srcval = fetch_word_imm(); - } - DECODE_PRINTF2("%x\n", srcval); - TRACE_AND_STEP(); - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - M.x86.R_EBP = srcval; - } else { - M.x86.R_BP = (u16)srcval; - } - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0xbe -****************************************************************************/ -static void x86emuOp_mov_word_SI_IMM(u8 X86EMU_UNUSED(op1)) -{ - u32 srcval; - - START_OF_INSTR(); - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - DECODE_PRINTF("MOV\tESI,"); - srcval = fetch_long_imm(); - } else { - DECODE_PRINTF("MOV\tSI,"); - srcval = fetch_word_imm(); - } - DECODE_PRINTF2("%x\n", srcval); - TRACE_AND_STEP(); - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - M.x86.R_ESI = srcval; - } else { - M.x86.R_SI = (u16)srcval; - } - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0xbf -****************************************************************************/ -static void x86emuOp_mov_word_DI_IMM(u8 X86EMU_UNUSED(op1)) -{ - u32 srcval; - - START_OF_INSTR(); - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - DECODE_PRINTF("MOV\tEDI,"); - srcval = fetch_long_imm(); - } else { - DECODE_PRINTF("MOV\tDI,"); - srcval = fetch_word_imm(); - } - DECODE_PRINTF2("%x\n", srcval); - TRACE_AND_STEP(); - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - M.x86.R_EDI = srcval; - } else { - M.x86.R_DI = (u16)srcval; - } - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); -} - -/* used by opcodes c0, d0, and d2. */ -static u8(*opcD0_byte_operation[])(u8 d, u8 s) = -{ - rol_byte, - ror_byte, - rcl_byte, - rcr_byte, - shl_byte, - shr_byte, - shl_byte, /* sal_byte === shl_byte by definition */ - sar_byte, -}; - -/**************************************************************************** -REMARKS: -Handles opcode 0xc0 -****************************************************************************/ -static void x86emuOp_opcC0_byte_RM_MEM(u8 X86EMU_UNUSED(op1)) -{ - int mod, rl, rh; - u8 *destreg; - uint destoffset; - u8 destval; - u8 amt; - - /* - * Yet another weirdo special case instruction format. Part of - * the opcode held below in "RH". Doubly nested case would - * result, except that the decoded instruction - */ - START_OF_INSTR(); - FETCH_DECODE_MODRM(mod, rh, rl); -#ifdef DEBUG - if (DEBUG_DECODE()) { - /* XXX DECODE_PRINTF may be changed to something more - general, so that it is important to leave the strings - in the same format, even though the result is that the - above test is done twice. */ - - switch (rh) { - case 0: - DECODE_PRINTF("ROL\t"); - break; - case 1: - DECODE_PRINTF("ROR\t"); - break; - case 2: - DECODE_PRINTF("RCL\t"); - break; - case 3: - DECODE_PRINTF("RCR\t"); - break; - case 4: - DECODE_PRINTF("SHL\t"); - break; - case 5: - DECODE_PRINTF("SHR\t"); - break; - case 6: - DECODE_PRINTF("SAL\t"); - break; - case 7: - DECODE_PRINTF("SAR\t"); - break; - } - } -#endif - /* know operation, decode the mod byte to find the addressing - mode. */ - switch (mod) { - case 0: - DECODE_PRINTF("BYTE PTR "); - destoffset = decode_rm00_address(rl); - amt = fetch_byte_imm(); - DECODE_PRINTF2(",%x\n", amt); - destval = fetch_data_byte(destoffset); - TRACE_AND_STEP(); - destval = (*opcD0_byte_operation[rh]) (destval, amt); - store_data_byte(destoffset, destval); - break; - case 1: - DECODE_PRINTF("BYTE PTR "); - destoffset = decode_rm01_address(rl); - amt = fetch_byte_imm(); - DECODE_PRINTF2(",%x\n", amt); - destval = fetch_data_byte(destoffset); - TRACE_AND_STEP(); - destval = (*opcD0_byte_operation[rh]) (destval, amt); - store_data_byte(destoffset, destval); - break; - case 2: - DECODE_PRINTF("BYTE PTR "); - destoffset = decode_rm10_address(rl); - amt = fetch_byte_imm(); - DECODE_PRINTF2(",%x\n", amt); - destval = fetch_data_byte(destoffset); - TRACE_AND_STEP(); - destval = (*opcD0_byte_operation[rh]) (destval, amt); - store_data_byte(destoffset, destval); - break; - case 3: /* register to register */ - destreg = DECODE_RM_BYTE_REGISTER(rl); - amt = fetch_byte_imm(); - DECODE_PRINTF2(",%x\n", amt); - TRACE_AND_STEP(); - destval = (*opcD0_byte_operation[rh]) (*destreg, amt); - *destreg = destval; - break; - } - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); -} - -/* used by opcodes c1, d1, and d3. */ -static u16(*opcD1_word_operation[])(u16 s, u8 d) = -{ - rol_word, - ror_word, - rcl_word, - rcr_word, - shl_word, - shr_word, - shl_word, /* sal_byte === shl_byte by definition */ - sar_word, -}; - -/* used by opcodes c1, d1, and d3. */ -static u32 (*opcD1_long_operation[])(u32 s, u8 d) = -{ - rol_long, - ror_long, - rcl_long, - rcr_long, - shl_long, - shr_long, - shl_long, /* sal_byte === shl_byte by definition */ - sar_long, -}; - -/**************************************************************************** -REMARKS: -Handles opcode 0xc1 -****************************************************************************/ -static void x86emuOp_opcC1_word_RM_MEM(u8 X86EMU_UNUSED(op1)) -{ - int mod, rl, rh; - uint destoffset; - u8 amt; - - /* - * Yet another weirdo special case instruction format. Part of - * the opcode held below in "RH". Doubly nested case would - * result, except that the decoded instruction - */ - START_OF_INSTR(); - FETCH_DECODE_MODRM(mod, rh, rl); -#ifdef DEBUG - if (DEBUG_DECODE()) { - /* XXX DECODE_PRINTF may be changed to something more - general, so that it is important to leave the strings - in the same format, even though the result is that the - above test is done twice. */ - - switch (rh) { - case 0: - DECODE_PRINTF("ROL\t"); - break; - case 1: - DECODE_PRINTF("ROR\t"); - break; - case 2: - DECODE_PRINTF("RCL\t"); - break; - case 3: - DECODE_PRINTF("RCR\t"); - break; - case 4: - DECODE_PRINTF("SHL\t"); - break; - case 5: - DECODE_PRINTF("SHR\t"); - break; - case 6: - DECODE_PRINTF("SAL\t"); - break; - case 7: - DECODE_PRINTF("SAR\t"); - break; - } - } -#endif - /* know operation, decode the mod byte to find the addressing - mode. */ - switch (mod) { - case 0: - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - u32 destval; - - DECODE_PRINTF("DWORD PTR "); - destoffset = decode_rm00_address(rl); - amt = fetch_byte_imm(); - DECODE_PRINTF2(",%x\n", amt); - destval = fetch_data_long(destoffset); - TRACE_AND_STEP(); - destval = (*opcD1_long_operation[rh]) (destval, amt); - store_data_long(destoffset, destval); - } else { - u16 destval; - - DECODE_PRINTF("WORD PTR "); - destoffset = decode_rm00_address(rl); - amt = fetch_byte_imm(); - DECODE_PRINTF2(",%x\n", amt); - destval = fetch_data_word(destoffset); - TRACE_AND_STEP(); - destval = (*opcD1_word_operation[rh]) (destval, amt); - store_data_word(destoffset, destval); - } - break; - case 1: - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - u32 destval; - - DECODE_PRINTF("DWORD PTR "); - destoffset = decode_rm01_address(rl); - amt = fetch_byte_imm(); - DECODE_PRINTF2(",%x\n", amt); - destval = fetch_data_long(destoffset); - TRACE_AND_STEP(); - destval = (*opcD1_long_operation[rh]) (destval, amt); - store_data_long(destoffset, destval); - } else { - u16 destval; - - DECODE_PRINTF("WORD PTR "); - destoffset = decode_rm01_address(rl); - amt = fetch_byte_imm(); - DECODE_PRINTF2(",%x\n", amt); - destval = fetch_data_word(destoffset); - TRACE_AND_STEP(); - destval = (*opcD1_word_operation[rh]) (destval, amt); - store_data_word(destoffset, destval); - } - break; - case 2: - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - u32 destval; - - DECODE_PRINTF("DWORD PTR "); - destoffset = decode_rm10_address(rl); - amt = fetch_byte_imm(); - DECODE_PRINTF2(",%x\n", amt); - destval = fetch_data_long(destoffset); - TRACE_AND_STEP(); - destval = (*opcD1_long_operation[rh]) (destval, amt); - store_data_long(destoffset, destval); - } else { - u16 destval; - - DECODE_PRINTF("WORD PTR "); - destoffset = decode_rm10_address(rl); - amt = fetch_byte_imm(); - DECODE_PRINTF2(",%x\n", amt); - destval = fetch_data_word(destoffset); - TRACE_AND_STEP(); - destval = (*opcD1_word_operation[rh]) (destval, amt); - store_data_word(destoffset, destval); - } - break; - case 3: /* register to register */ - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - u32 *destreg; - - destreg = DECODE_RM_LONG_REGISTER(rl); - amt = fetch_byte_imm(); - DECODE_PRINTF2(",%x\n", amt); - TRACE_AND_STEP(); - *destreg = (*opcD1_long_operation[rh]) (*destreg, amt); - } else { - u16 *destreg; - - destreg = DECODE_RM_WORD_REGISTER(rl); - amt = fetch_byte_imm(); - DECODE_PRINTF2(",%x\n", amt); - TRACE_AND_STEP(); - *destreg = (*opcD1_word_operation[rh]) (*destreg, amt); - } - break; - } - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0xc2 -****************************************************************************/ -static void x86emuOp_ret_near_IMM(u8 X86EMU_UNUSED(op1)) -{ - u16 imm; - - START_OF_INSTR(); - DECODE_PRINTF("RET\t"); - imm = fetch_word_imm(); - DECODE_PRINTF2("%x\n", imm); - RETURN_TRACE("RET",M.x86.saved_cs,M.x86.saved_ip); - TRACE_AND_STEP(); - M.x86.R_IP = pop_word(); - M.x86.R_SP += imm; - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0xc3 -****************************************************************************/ -static void x86emuOp_ret_near(u8 X86EMU_UNUSED(op1)) -{ - START_OF_INSTR(); - DECODE_PRINTF("RET\n"); - RETURN_TRACE("RET",M.x86.saved_cs,M.x86.saved_ip); - TRACE_AND_STEP(); - M.x86.R_IP = pop_word(); - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0xc4 -****************************************************************************/ -static void x86emuOp_les_R_IMM(u8 X86EMU_UNUSED(op1)) -{ - int mod, rh, rl; - u16 *dstreg; - uint srcoffset; - - START_OF_INSTR(); - DECODE_PRINTF("LES\t"); - FETCH_DECODE_MODRM(mod, rh, rl); - switch (mod) { - case 0: - dstreg = DECODE_RM_WORD_REGISTER(rh); - DECODE_PRINTF(","); - srcoffset = decode_rm00_address(rl); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - *dstreg = fetch_data_word(srcoffset); - M.x86.R_ES = fetch_data_word(srcoffset + 2); - break; - case 1: - dstreg = DECODE_RM_WORD_REGISTER(rh); - DECODE_PRINTF(","); - srcoffset = decode_rm01_address(rl); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - *dstreg = fetch_data_word(srcoffset); - M.x86.R_ES = fetch_data_word(srcoffset + 2); - break; - case 2: - dstreg = DECODE_RM_WORD_REGISTER(rh); - DECODE_PRINTF(","); - srcoffset = decode_rm10_address(rl); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - *dstreg = fetch_data_word(srcoffset); - M.x86.R_ES = fetch_data_word(srcoffset + 2); - break; - case 3: /* register to register */ - /* UNDEFINED! */ - TRACE_AND_STEP(); - } - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0xc5 -****************************************************************************/ -static void x86emuOp_lds_R_IMM(u8 X86EMU_UNUSED(op1)) -{ - int mod, rh, rl; - u16 *dstreg; - uint srcoffset; - - START_OF_INSTR(); - DECODE_PRINTF("LDS\t"); - FETCH_DECODE_MODRM(mod, rh, rl); - switch (mod) { - case 0: - dstreg = DECODE_RM_WORD_REGISTER(rh); - DECODE_PRINTF(","); - srcoffset = decode_rm00_address(rl); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - *dstreg = fetch_data_word(srcoffset); - M.x86.R_DS = fetch_data_word(srcoffset + 2); - break; - case 1: - dstreg = DECODE_RM_WORD_REGISTER(rh); - DECODE_PRINTF(","); - srcoffset = decode_rm01_address(rl); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - *dstreg = fetch_data_word(srcoffset); - M.x86.R_DS = fetch_data_word(srcoffset + 2); - break; - case 2: - dstreg = DECODE_RM_WORD_REGISTER(rh); - DECODE_PRINTF(","); - srcoffset = decode_rm10_address(rl); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - *dstreg = fetch_data_word(srcoffset); - M.x86.R_DS = fetch_data_word(srcoffset + 2); - break; - case 3: /* register to register */ - /* UNDEFINED! */ - TRACE_AND_STEP(); - } - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0xc6 -****************************************************************************/ -static void x86emuOp_mov_byte_RM_IMM(u8 X86EMU_UNUSED(op1)) -{ - int mod, rl, rh; - u8 *destreg; - uint destoffset; - u8 imm; - - START_OF_INSTR(); - DECODE_PRINTF("MOV\t"); - FETCH_DECODE_MODRM(mod, rh, rl); - if (rh != 0) { - DECODE_PRINTF("ILLEGAL DECODE OF OPCODE c6\n"); - HALT_SYS(); - } - switch (mod) { - case 0: - DECODE_PRINTF("BYTE PTR "); - destoffset = decode_rm00_address(rl); - imm = fetch_byte_imm(); - DECODE_PRINTF2(",%2x\n", imm); - TRACE_AND_STEP(); - store_data_byte(destoffset, imm); - break; - case 1: - DECODE_PRINTF("BYTE PTR "); - destoffset = decode_rm01_address(rl); - imm = fetch_byte_imm(); - DECODE_PRINTF2(",%2x\n", imm); - TRACE_AND_STEP(); - store_data_byte(destoffset, imm); - break; - case 2: - DECODE_PRINTF("BYTE PTR "); - destoffset = decode_rm10_address(rl); - imm = fetch_byte_imm(); - DECODE_PRINTF2(",%2x\n", imm); - TRACE_AND_STEP(); - store_data_byte(destoffset, imm); - break; - case 3: /* register to register */ - destreg = DECODE_RM_BYTE_REGISTER(rl); - imm = fetch_byte_imm(); - DECODE_PRINTF2(",%2x\n", imm); - TRACE_AND_STEP(); - *destreg = imm; - break; - } - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0xc7 -****************************************************************************/ -static void x86emuOp_mov_word_RM_IMM(u8 X86EMU_UNUSED(op1)) -{ - int mod, rl, rh; - uint destoffset; - - START_OF_INSTR(); - DECODE_PRINTF("MOV\t"); - FETCH_DECODE_MODRM(mod, rh, rl); - if (rh != 0) { - DECODE_PRINTF("ILLEGAL DECODE OF OPCODE 8F\n"); - HALT_SYS(); - } - switch (mod) { - case 0: - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - u32 imm; - - DECODE_PRINTF("DWORD PTR "); - destoffset = decode_rm00_address(rl); - imm = fetch_long_imm(); - DECODE_PRINTF2(",%x\n", imm); - TRACE_AND_STEP(); - store_data_long(destoffset, imm); - } else { - u16 imm; - - DECODE_PRINTF("WORD PTR "); - destoffset = decode_rm00_address(rl); - imm = fetch_word_imm(); - DECODE_PRINTF2(",%x\n", imm); - TRACE_AND_STEP(); - store_data_word(destoffset, imm); - } - break; - case 1: - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - u32 imm; - - DECODE_PRINTF("DWORD PTR "); - destoffset = decode_rm01_address(rl); - imm = fetch_long_imm(); - DECODE_PRINTF2(",%x\n", imm); - TRACE_AND_STEP(); - store_data_long(destoffset, imm); - } else { - u16 imm; - - DECODE_PRINTF("WORD PTR "); - destoffset = decode_rm01_address(rl); - imm = fetch_word_imm(); - DECODE_PRINTF2(",%x\n", imm); - TRACE_AND_STEP(); - store_data_word(destoffset, imm); - } - break; - case 2: - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - u32 imm; - - DECODE_PRINTF("DWORD PTR "); - destoffset = decode_rm10_address(rl); - imm = fetch_long_imm(); - DECODE_PRINTF2(",%x\n", imm); - TRACE_AND_STEP(); - store_data_long(destoffset, imm); - } else { - u16 imm; - - DECODE_PRINTF("WORD PTR "); - destoffset = decode_rm10_address(rl); - imm = fetch_word_imm(); - DECODE_PRINTF2(",%x\n", imm); - TRACE_AND_STEP(); - store_data_word(destoffset, imm); - } - break; - case 3: /* register to register */ - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - u32 *destreg; - u32 imm; - - destreg = DECODE_RM_LONG_REGISTER(rl); - imm = fetch_long_imm(); - DECODE_PRINTF2(",%x\n", imm); - TRACE_AND_STEP(); - *destreg = imm; - } else { - u16 *destreg; - u16 imm; - - destreg = DECODE_RM_WORD_REGISTER(rl); - imm = fetch_word_imm(); - DECODE_PRINTF2(",%x\n", imm); - TRACE_AND_STEP(); - *destreg = imm; - } - break; - } - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0xc8 -****************************************************************************/ -static void x86emuOp_enter(u8 X86EMU_UNUSED(op1)) -{ - u16 local,frame_pointer; - u8 nesting; - int i; - - START_OF_INSTR(); - local = fetch_word_imm(); - nesting = fetch_byte_imm(); - DECODE_PRINTF2("ENTER %x\n", local); - DECODE_PRINTF2(",%x\n", nesting); - TRACE_AND_STEP(); - push_word(M.x86.R_BP); - frame_pointer = M.x86.R_SP; - if (nesting > 0) { - for (i = 1; i < nesting; i++) { - M.x86.R_BP -= 2; - push_word(fetch_data_word_abs(M.x86.R_SS, M.x86.R_BP)); - } - push_word(frame_pointer); - } - M.x86.R_BP = frame_pointer; - M.x86.R_SP = (u16)(M.x86.R_SP - local); - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0xc9 -****************************************************************************/ -static void x86emuOp_leave(u8 X86EMU_UNUSED(op1)) -{ - START_OF_INSTR(); - DECODE_PRINTF("LEAVE\n"); - TRACE_AND_STEP(); - M.x86.R_SP = M.x86.R_BP; - M.x86.R_BP = pop_word(); - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0xca -****************************************************************************/ -static void x86emuOp_ret_far_IMM(u8 X86EMU_UNUSED(op1)) -{ - u16 imm; - - START_OF_INSTR(); - DECODE_PRINTF("RETF\t"); - imm = fetch_word_imm(); - DECODE_PRINTF2("%x\n", imm); - RETURN_TRACE("RETF",M.x86.saved_cs,M.x86.saved_ip); - TRACE_AND_STEP(); - M.x86.R_IP = pop_word(); - M.x86.R_CS = pop_word(); - M.x86.R_SP += imm; - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0xcb -****************************************************************************/ -static void x86emuOp_ret_far(u8 X86EMU_UNUSED(op1)) -{ - START_OF_INSTR(); - DECODE_PRINTF("RETF\n"); - RETURN_TRACE("RETF",M.x86.saved_cs,M.x86.saved_ip); - TRACE_AND_STEP(); - M.x86.R_IP = pop_word(); - M.x86.R_CS = pop_word(); - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0xcc -****************************************************************************/ -static void x86emuOp_int3(u8 X86EMU_UNUSED(op1)) -{ - START_OF_INSTR(); - DECODE_PRINTF("INT 3\n"); - TRACE_AND_STEP(); - if (_X86EMU_intrTab[3]) { - (*_X86EMU_intrTab[3])(3); - } else { - push_word((u16)M.x86.R_FLG); - CLEAR_FLAG(F_IF); - CLEAR_FLAG(F_TF); - push_word(M.x86.R_CS); - M.x86.R_CS = mem_access_word(3 * 4 + 2); - push_word(M.x86.R_IP); - M.x86.R_IP = mem_access_word(3 * 4); - } - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0xcd -****************************************************************************/ -static void x86emuOp_int_IMM(u8 X86EMU_UNUSED(op1)) -{ - u8 intnum; - - START_OF_INSTR(); - DECODE_PRINTF("INT\t"); - intnum = fetch_byte_imm(); - DECODE_PRINTF2("%x\n", intnum); - TRACE_AND_STEP(); - if (_X86EMU_intrTab[intnum]) { - (*_X86EMU_intrTab[intnum])(intnum); - } else { - push_word((u16)M.x86.R_FLG); - CLEAR_FLAG(F_IF); - CLEAR_FLAG(F_TF); - push_word(M.x86.R_CS); - M.x86.R_CS = mem_access_word(intnum * 4 + 2); - push_word(M.x86.R_IP); - M.x86.R_IP = mem_access_word(intnum * 4); - } - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0xce -****************************************************************************/ -static void x86emuOp_into(u8 X86EMU_UNUSED(op1)) -{ - START_OF_INSTR(); - DECODE_PRINTF("INTO\n"); - TRACE_AND_STEP(); - if (ACCESS_FLAG(F_OF)) { - if (_X86EMU_intrTab[4]) { - (*_X86EMU_intrTab[4])(4); - } else { - push_word((u16)M.x86.R_FLG); - CLEAR_FLAG(F_IF); - CLEAR_FLAG(F_TF); - push_word(M.x86.R_CS); - M.x86.R_CS = mem_access_word(4 * 4 + 2); - push_word(M.x86.R_IP); - M.x86.R_IP = mem_access_word(4 * 4); - } - } - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0xcf -****************************************************************************/ -static void x86emuOp_iret(u8 X86EMU_UNUSED(op1)) -{ - START_OF_INSTR(); - DECODE_PRINTF("IRET\n"); - - TRACE_AND_STEP(); - - M.x86.R_IP = pop_word(); - M.x86.R_CS = pop_word(); - M.x86.R_FLG = pop_word(); - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0xd0 -****************************************************************************/ -static void x86emuOp_opcD0_byte_RM_1(u8 X86EMU_UNUSED(op1)) -{ - int mod, rl, rh; - u8 *destreg; - uint destoffset; - u8 destval; - - /* - * Yet another weirdo special case instruction format. Part of - * the opcode held below in "RH". Doubly nested case would - * result, except that the decoded instruction - */ - START_OF_INSTR(); - FETCH_DECODE_MODRM(mod, rh, rl); -#ifdef DEBUG - if (DEBUG_DECODE()) { - /* XXX DECODE_PRINTF may be changed to something more - general, so that it is important to leave the strings - in the same format, even though the result is that the - above test is done twice. */ - switch (rh) { - case 0: - DECODE_PRINTF("ROL\t"); - break; - case 1: - DECODE_PRINTF("ROR\t"); - break; - case 2: - DECODE_PRINTF("RCL\t"); - break; - case 3: - DECODE_PRINTF("RCR\t"); - break; - case 4: - DECODE_PRINTF("SHL\t"); - break; - case 5: - DECODE_PRINTF("SHR\t"); - break; - case 6: - DECODE_PRINTF("SAL\t"); - break; - case 7: - DECODE_PRINTF("SAR\t"); - break; - } - } -#endif - /* know operation, decode the mod byte to find the addressing - mode. */ - switch (mod) { - case 0: - DECODE_PRINTF("BYTE PTR "); - destoffset = decode_rm00_address(rl); - DECODE_PRINTF(",1\n"); - destval = fetch_data_byte(destoffset); - TRACE_AND_STEP(); - destval = (*opcD0_byte_operation[rh]) (destval, 1); - store_data_byte(destoffset, destval); - break; - case 1: - DECODE_PRINTF("BYTE PTR "); - destoffset = decode_rm01_address(rl); - DECODE_PRINTF(",1\n"); - destval = fetch_data_byte(destoffset); - TRACE_AND_STEP(); - destval = (*opcD0_byte_operation[rh]) (destval, 1); - store_data_byte(destoffset, destval); - break; - case 2: - DECODE_PRINTF("BYTE PTR "); - destoffset = decode_rm10_address(rl); - DECODE_PRINTF(",1\n"); - destval = fetch_data_byte(destoffset); - TRACE_AND_STEP(); - destval = (*opcD0_byte_operation[rh]) (destval, 1); - store_data_byte(destoffset, destval); - break; - case 3: /* register to register */ - destreg = DECODE_RM_BYTE_REGISTER(rl); - DECODE_PRINTF(",1\n"); - TRACE_AND_STEP(); - destval = (*opcD0_byte_operation[rh]) (*destreg, 1); - *destreg = destval; - break; - } - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0xd1 -****************************************************************************/ -static void x86emuOp_opcD1_word_RM_1(u8 X86EMU_UNUSED(op1)) -{ - int mod, rl, rh; - uint destoffset; - - /* - * Yet another weirdo special case instruction format. Part of - * the opcode held below in "RH". Doubly nested case would - * result, except that the decoded instruction - */ - START_OF_INSTR(); - FETCH_DECODE_MODRM(mod, rh, rl); -#ifdef DEBUG - if (DEBUG_DECODE()) { - /* XXX DECODE_PRINTF may be changed to something more - general, so that it is important to leave the strings - in the same format, even though the result is that the - above test is done twice. */ - switch (rh) { - case 0: - DECODE_PRINTF("ROL\t"); - break; - case 1: - DECODE_PRINTF("ROR\t"); - break; - case 2: - DECODE_PRINTF("RCL\t"); - break; - case 3: - DECODE_PRINTF("RCR\t"); - break; - case 4: - DECODE_PRINTF("SHL\t"); - break; - case 5: - DECODE_PRINTF("SHR\t"); - break; - case 6: - DECODE_PRINTF("SAL\t"); - break; - case 7: - DECODE_PRINTF("SAR\t"); - break; - } - } -#endif - /* know operation, decode the mod byte to find the addressing - mode. */ - switch (mod) { - case 0: - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - u32 destval; - - DECODE_PRINTF("DWORD PTR "); - destoffset = decode_rm00_address(rl); - DECODE_PRINTF(",1\n"); - destval = fetch_data_long(destoffset); - TRACE_AND_STEP(); - destval = (*opcD1_long_operation[rh]) (destval, 1); - store_data_long(destoffset, destval); - } else { - u16 destval; - - DECODE_PRINTF("WORD PTR "); - destoffset = decode_rm00_address(rl); - DECODE_PRINTF(",1\n"); - destval = fetch_data_word(destoffset); - TRACE_AND_STEP(); - destval = (*opcD1_word_operation[rh]) (destval, 1); - store_data_word(destoffset, destval); - } - break; - case 1: - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - u32 destval; - - DECODE_PRINTF("DWORD PTR "); - destoffset = decode_rm01_address(rl); - DECODE_PRINTF(",1\n"); - destval = fetch_data_long(destoffset); - TRACE_AND_STEP(); - destval = (*opcD1_long_operation[rh]) (destval, 1); - store_data_long(destoffset, destval); - } else { - u16 destval; - - DECODE_PRINTF("WORD PTR "); - destoffset = decode_rm01_address(rl); - DECODE_PRINTF(",1\n"); - destval = fetch_data_word(destoffset); - TRACE_AND_STEP(); - destval = (*opcD1_word_operation[rh]) (destval, 1); - store_data_word(destoffset, destval); - } - break; - case 2: - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - u32 destval; - - DECODE_PRINTF("DWORD PTR "); - destoffset = decode_rm10_address(rl); - DECODE_PRINTF(",1\n"); - destval = fetch_data_long(destoffset); - TRACE_AND_STEP(); - destval = (*opcD1_long_operation[rh]) (destval, 1); - store_data_long(destoffset, destval); - } else { - u16 destval; - - DECODE_PRINTF("BYTE PTR "); - destoffset = decode_rm10_address(rl); - DECODE_PRINTF(",1\n"); - destval = fetch_data_word(destoffset); - TRACE_AND_STEP(); - destval = (*opcD1_word_operation[rh]) (destval, 1); - store_data_word(destoffset, destval); - } - break; - case 3: /* register to register */ - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - u32 destval; - u32 *destreg; - - destreg = DECODE_RM_LONG_REGISTER(rl); - DECODE_PRINTF(",1\n"); - TRACE_AND_STEP(); - destval = (*opcD1_long_operation[rh]) (*destreg, 1); - *destreg = destval; - } else { - u16 destval; - u16 *destreg; - - destreg = DECODE_RM_WORD_REGISTER(rl); - DECODE_PRINTF(",1\n"); - TRACE_AND_STEP(); - destval = (*opcD1_word_operation[rh]) (*destreg, 1); - *destreg = destval; - } - break; - } - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0xd2 -****************************************************************************/ -static void x86emuOp_opcD2_byte_RM_CL(u8 X86EMU_UNUSED(op1)) -{ - int mod, rl, rh; - u8 *destreg; - uint destoffset; - u8 destval; - u8 amt; - - /* - * Yet another weirdo special case instruction format. Part of - * the opcode held below in "RH". Doubly nested case would - * result, except that the decoded instruction - */ - START_OF_INSTR(); - FETCH_DECODE_MODRM(mod, rh, rl); -#ifdef DEBUG - if (DEBUG_DECODE()) { - /* XXX DECODE_PRINTF may be changed to something more - general, so that it is important to leave the strings - in the same format, even though the result is that the - above test is done twice. */ - switch (rh) { - case 0: - DECODE_PRINTF("ROL\t"); - break; - case 1: - DECODE_PRINTF("ROR\t"); - break; - case 2: - DECODE_PRINTF("RCL\t"); - break; - case 3: - DECODE_PRINTF("RCR\t"); - break; - case 4: - DECODE_PRINTF("SHL\t"); - break; - case 5: - DECODE_PRINTF("SHR\t"); - break; - case 6: - DECODE_PRINTF("SAL\t"); - break; - case 7: - DECODE_PRINTF("SAR\t"); - break; - } - } -#endif - /* know operation, decode the mod byte to find the addressing - mode. */ - amt = M.x86.R_CL; - switch (mod) { - case 0: - DECODE_PRINTF("BYTE PTR "); - destoffset = decode_rm00_address(rl); - DECODE_PRINTF(",CL\n"); - destval = fetch_data_byte(destoffset); - TRACE_AND_STEP(); - destval = (*opcD0_byte_operation[rh]) (destval, amt); - store_data_byte(destoffset, destval); - break; - case 1: - DECODE_PRINTF("BYTE PTR "); - destoffset = decode_rm01_address(rl); - DECODE_PRINTF(",CL\n"); - destval = fetch_data_byte(destoffset); - TRACE_AND_STEP(); - destval = (*opcD0_byte_operation[rh]) (destval, amt); - store_data_byte(destoffset, destval); - break; - case 2: - DECODE_PRINTF("BYTE PTR "); - destoffset = decode_rm10_address(rl); - DECODE_PRINTF(",CL\n"); - destval = fetch_data_byte(destoffset); - TRACE_AND_STEP(); - destval = (*opcD0_byte_operation[rh]) (destval, amt); - store_data_byte(destoffset, destval); - break; - case 3: /* register to register */ - destreg = DECODE_RM_BYTE_REGISTER(rl); - DECODE_PRINTF(",CL\n"); - TRACE_AND_STEP(); - destval = (*opcD0_byte_operation[rh]) (*destreg, amt); - *destreg = destval; - break; - } - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0xd3 -****************************************************************************/ -static void x86emuOp_opcD3_word_RM_CL(u8 X86EMU_UNUSED(op1)) -{ - int mod, rl, rh; - uint destoffset; - u8 amt; - - /* - * Yet another weirdo special case instruction format. Part of - * the opcode held below in "RH". Doubly nested case would - * result, except that the decoded instruction - */ - START_OF_INSTR(); - FETCH_DECODE_MODRM(mod, rh, rl); -#ifdef DEBUG - if (DEBUG_DECODE()) { - /* XXX DECODE_PRINTF may be changed to something more - general, so that it is important to leave the strings - in the same format, even though the result is that the - above test is done twice. */ - switch (rh) { - case 0: - DECODE_PRINTF("ROL\t"); - break; - case 1: - DECODE_PRINTF("ROR\t"); - break; - case 2: - DECODE_PRINTF("RCL\t"); - break; - case 3: - DECODE_PRINTF("RCR\t"); - break; - case 4: - DECODE_PRINTF("SHL\t"); - break; - case 5: - DECODE_PRINTF("SHR\t"); - break; - case 6: - DECODE_PRINTF("SAL\t"); - break; - case 7: - DECODE_PRINTF("SAR\t"); - break; - } - } -#endif - /* know operation, decode the mod byte to find the addressing - mode. */ - amt = M.x86.R_CL; - switch (mod) { - case 0: - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - u32 destval; - - DECODE_PRINTF("DWORD PTR "); - destoffset = decode_rm00_address(rl); - DECODE_PRINTF(",CL\n"); - destval = fetch_data_long(destoffset); - TRACE_AND_STEP(); - destval = (*opcD1_long_operation[rh]) (destval, amt); - store_data_long(destoffset, destval); - } else { - u16 destval; - - DECODE_PRINTF("WORD PTR "); - destoffset = decode_rm00_address(rl); - DECODE_PRINTF(",CL\n"); - destval = fetch_data_word(destoffset); - TRACE_AND_STEP(); - destval = (*opcD1_word_operation[rh]) (destval, amt); - store_data_word(destoffset, destval); - } - break; - case 1: - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - u32 destval; - - DECODE_PRINTF("DWORD PTR "); - destoffset = decode_rm01_address(rl); - DECODE_PRINTF(",CL\n"); - destval = fetch_data_long(destoffset); - TRACE_AND_STEP(); - destval = (*opcD1_long_operation[rh]) (destval, amt); - store_data_long(destoffset, destval); - } else { - u16 destval; - - DECODE_PRINTF("WORD PTR "); - destoffset = decode_rm01_address(rl); - DECODE_PRINTF(",CL\n"); - destval = fetch_data_word(destoffset); - TRACE_AND_STEP(); - destval = (*opcD1_word_operation[rh]) (destval, amt); - store_data_word(destoffset, destval); - } - break; - case 2: - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - u32 destval; - - DECODE_PRINTF("DWORD PTR "); - destoffset = decode_rm10_address(rl); - DECODE_PRINTF(",CL\n"); - destval = fetch_data_long(destoffset); - TRACE_AND_STEP(); - destval = (*opcD1_long_operation[rh]) (destval, amt); - store_data_long(destoffset, destval); - } else { - u16 destval; - - DECODE_PRINTF("WORD PTR "); - destoffset = decode_rm10_address(rl); - DECODE_PRINTF(",CL\n"); - destval = fetch_data_word(destoffset); - TRACE_AND_STEP(); - destval = (*opcD1_word_operation[rh]) (destval, amt); - store_data_word(destoffset, destval); - } - break; - case 3: /* register to register */ - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - u32 *destreg; - - destreg = DECODE_RM_LONG_REGISTER(rl); - DECODE_PRINTF(",CL\n"); - TRACE_AND_STEP(); - *destreg = (*opcD1_long_operation[rh]) (*destreg, amt); - } else { - u16 *destreg; - - destreg = DECODE_RM_WORD_REGISTER(rl); - DECODE_PRINTF(",CL\n"); - TRACE_AND_STEP(); - *destreg = (*opcD1_word_operation[rh]) (*destreg, amt); - } - break; - } - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0xd4 -****************************************************************************/ -static void x86emuOp_aam(u8 X86EMU_UNUSED(op1)) -{ - u8 a; - - START_OF_INSTR(); - DECODE_PRINTF("AAM\n"); - a = fetch_byte_imm(); /* this is a stupid encoding. */ - if (a != 10) { - /* fix: add base decoding - aam_word(u8 val, int base a) */ - DECODE_PRINTF("ERROR DECODING AAM\n"); - TRACE_REGS(); - HALT_SYS(); - } - TRACE_AND_STEP(); - /* note the type change here --- returning AL and AH in AX. */ - M.x86.R_AX = aam_word(M.x86.R_AL); - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0xd5 -****************************************************************************/ -static void x86emuOp_aad(u8 X86EMU_UNUSED(op1)) -{ - u8 a; - - START_OF_INSTR(); - DECODE_PRINTF("AAD\n"); - a = fetch_byte_imm(); - if (a != 10) { - /* fix: add base decoding - aad_word(u16 val, int base a) */ - DECODE_PRINTF("ERROR DECODING AAM\n"); - TRACE_REGS(); - HALT_SYS(); - } - TRACE_AND_STEP(); - M.x86.R_AX = aad_word(M.x86.R_AX); - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); -} - -/* opcode 0xd6 ILLEGAL OPCODE */ - -/**************************************************************************** -REMARKS: -Handles opcode 0xd7 -****************************************************************************/ -static void x86emuOp_xlat(u8 X86EMU_UNUSED(op1)) -{ - u16 addr; - - START_OF_INSTR(); - DECODE_PRINTF("XLAT\n"); - TRACE_AND_STEP(); - addr = (u16)(M.x86.R_BX + (u8)M.x86.R_AL); - M.x86.R_AL = fetch_data_byte(addr); - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); -} - -/* instuctions D8 .. DF are in i87_ops.c */ - -/**************************************************************************** -REMARKS: -Handles opcode 0xe0 -****************************************************************************/ -static void x86emuOp_loopne(u8 X86EMU_UNUSED(op1)) -{ - s16 ip; - - START_OF_INSTR(); - DECODE_PRINTF("LOOPNE\t"); - ip = (s8) fetch_byte_imm(); - ip += (s16) M.x86.R_IP; - DECODE_PRINTF2("%04x\n", ip); - TRACE_AND_STEP(); - M.x86.R_CX -= 1; - if (M.x86.R_CX != 0 && !ACCESS_FLAG(F_ZF)) /* CX != 0 and !ZF */ - M.x86.R_IP = ip; - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0xe1 -****************************************************************************/ -static void x86emuOp_loope(u8 X86EMU_UNUSED(op1)) -{ - s16 ip; - - START_OF_INSTR(); - DECODE_PRINTF("LOOPE\t"); - ip = (s8) fetch_byte_imm(); - ip += (s16) M.x86.R_IP; - DECODE_PRINTF2("%04x\n", ip); - TRACE_AND_STEP(); - M.x86.R_CX -= 1; - if (M.x86.R_CX != 0 && ACCESS_FLAG(F_ZF)) /* CX != 0 and ZF */ - M.x86.R_IP = ip; - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0xe2 -****************************************************************************/ -static void x86emuOp_loop(u8 X86EMU_UNUSED(op1)) -{ - s16 ip; - - START_OF_INSTR(); - DECODE_PRINTF("LOOP\t"); - ip = (s8) fetch_byte_imm(); - ip += (s16) M.x86.R_IP; - DECODE_PRINTF2("%04x\n", ip); - TRACE_AND_STEP(); - M.x86.R_CX -= 1; - if (M.x86.R_CX != 0) - M.x86.R_IP = ip; - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0xe3 -****************************************************************************/ -static void x86emuOp_jcxz(u8 X86EMU_UNUSED(op1)) -{ - u16 target; - s8 offset; - - /* jump to byte offset if overflow flag is set */ - START_OF_INSTR(); - DECODE_PRINTF("JCXZ\t"); - offset = (s8)fetch_byte_imm(); - target = (u16)(M.x86.R_IP + offset); - DECODE_PRINTF2("%x\n", target); - TRACE_AND_STEP(); - if (M.x86.R_CX == 0) - M.x86.R_IP = target; - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0xe4 -****************************************************************************/ -static void x86emuOp_in_byte_AL_IMM(u8 X86EMU_UNUSED(op1)) -{ - u8 port; - - START_OF_INSTR(); - DECODE_PRINTF("IN\t"); - port = (u8) fetch_byte_imm(); - DECODE_PRINTF2("%x,AL\n", port); - TRACE_AND_STEP(); - M.x86.R_AL = (*sys_inb)(port); - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0xe5 -****************************************************************************/ -static void x86emuOp_in_word_AX_IMM(u8 X86EMU_UNUSED(op1)) -{ - u8 port; - - START_OF_INSTR(); - DECODE_PRINTF("IN\t"); - port = (u8) fetch_byte_imm(); - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - DECODE_PRINTF2("EAX,%x\n", port); - } else { - DECODE_PRINTF2("AX,%x\n", port); - } - TRACE_AND_STEP(); - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - M.x86.R_EAX = (*sys_inl)(port); - } else { - M.x86.R_AX = (*sys_inw)(port); - } - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0xe6 -****************************************************************************/ -static void x86emuOp_out_byte_IMM_AL(u8 X86EMU_UNUSED(op1)) -{ - u8 port; - - START_OF_INSTR(); - DECODE_PRINTF("OUT\t"); - port = (u8) fetch_byte_imm(); - DECODE_PRINTF2("%x,AL\n", port); - TRACE_AND_STEP(); - (*sys_outb)(port, M.x86.R_AL); - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0xe7 -****************************************************************************/ -static void x86emuOp_out_word_IMM_AX(u8 X86EMU_UNUSED(op1)) -{ - u8 port; - - START_OF_INSTR(); - DECODE_PRINTF("OUT\t"); - port = (u8) fetch_byte_imm(); - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - DECODE_PRINTF2("%x,EAX\n", port); - } else { - DECODE_PRINTF2("%x,AX\n", port); - } - TRACE_AND_STEP(); - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - (*sys_outl)(port, M.x86.R_EAX); - } else { - (*sys_outw)(port, M.x86.R_AX); - } - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0xe8 -****************************************************************************/ -static void x86emuOp_call_near_IMM(u8 X86EMU_UNUSED(op1)) -{ - s16 ip; - - START_OF_INSTR(); - DECODE_PRINTF("CALL\t"); - ip = (s16) fetch_word_imm(); - ip += (s16) M.x86.R_IP; /* CHECK SIGN */ - DECODE_PRINTF2("%04x\n", (u16)ip); - CALL_TRACE(M.x86.saved_cs, M.x86.saved_ip, M.x86.R_CS, ip, ""); - TRACE_AND_STEP(); - push_word(M.x86.R_IP); - M.x86.R_IP = ip; - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0xe9 -****************************************************************************/ -static void x86emuOp_jump_near_IMM(u8 X86EMU_UNUSED(op1)) -{ - int ip; - - START_OF_INSTR(); - DECODE_PRINTF("JMP\t"); - ip = (s16)fetch_word_imm(); - ip += (s16)M.x86.R_IP; - DECODE_PRINTF2("%04x\n", (u16)ip); - TRACE_AND_STEP(); - M.x86.R_IP = (u16)ip; - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0xea -****************************************************************************/ -static void x86emuOp_jump_far_IMM(u8 X86EMU_UNUSED(op1)) -{ - u16 cs, ip; - - START_OF_INSTR(); - DECODE_PRINTF("JMP\tFAR "); - ip = fetch_word_imm(); - cs = fetch_word_imm(); - DECODE_PRINTF2("%04x:", cs); - DECODE_PRINTF2("%04x\n", ip); - TRACE_AND_STEP(); - M.x86.R_IP = ip; - M.x86.R_CS = cs; - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0xeb -****************************************************************************/ -static void x86emuOp_jump_byte_IMM(u8 X86EMU_UNUSED(op1)) -{ - u16 target; - s8 offset; - - START_OF_INSTR(); - DECODE_PRINTF("JMP\t"); - offset = (s8)fetch_byte_imm(); - target = (u16)(M.x86.R_IP + offset); - DECODE_PRINTF2("%x\n", target); - TRACE_AND_STEP(); - M.x86.R_IP = target; - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0xec -****************************************************************************/ -static void x86emuOp_in_byte_AL_DX(u8 X86EMU_UNUSED(op1)) -{ - START_OF_INSTR(); - DECODE_PRINTF("IN\tAL,DX\n"); - TRACE_AND_STEP(); - M.x86.R_AL = (*sys_inb)(M.x86.R_DX); - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0xed -****************************************************************************/ -static void x86emuOp_in_word_AX_DX(u8 X86EMU_UNUSED(op1)) -{ - START_OF_INSTR(); - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - DECODE_PRINTF("IN\tEAX,DX\n"); - } else { - DECODE_PRINTF("IN\tAX,DX\n"); - } - TRACE_AND_STEP(); - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - M.x86.R_EAX = (*sys_inl)(M.x86.R_DX); - } else { - M.x86.R_AX = (*sys_inw)(M.x86.R_DX); - } - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0xee -****************************************************************************/ -static void x86emuOp_out_byte_DX_AL(u8 X86EMU_UNUSED(op1)) -{ - START_OF_INSTR(); - DECODE_PRINTF("OUT\tDX,AL\n"); - TRACE_AND_STEP(); - (*sys_outb)(M.x86.R_DX, M.x86.R_AL); - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0xef -****************************************************************************/ -static void x86emuOp_out_word_DX_AX(u8 X86EMU_UNUSED(op1)) -{ - START_OF_INSTR(); - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - DECODE_PRINTF("OUT\tDX,EAX\n"); - } else { - DECODE_PRINTF("OUT\tDX,AX\n"); - } - TRACE_AND_STEP(); - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - (*sys_outl)(M.x86.R_DX, M.x86.R_EAX); - } else { - (*sys_outw)(M.x86.R_DX, M.x86.R_AX); - } - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0xf0 -****************************************************************************/ -static void x86emuOp_lock(u8 X86EMU_UNUSED(op1)) -{ - START_OF_INSTR(); - DECODE_PRINTF("LOCK:\n"); - TRACE_AND_STEP(); - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); -} - -/*opcode 0xf1 ILLEGAL OPERATION */ - -/**************************************************************************** -REMARKS: -Handles opcode 0xf2 -****************************************************************************/ -static void x86emuOp_repne(u8 X86EMU_UNUSED(op1)) -{ - START_OF_INSTR(); - DECODE_PRINTF("REPNE\n"); - TRACE_AND_STEP(); - M.x86.mode |= SYSMODE_PREFIX_REPNE; - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0xf3 -****************************************************************************/ -static void x86emuOp_repe(u8 X86EMU_UNUSED(op1)) -{ - START_OF_INSTR(); - DECODE_PRINTF("REPE\n"); - TRACE_AND_STEP(); - M.x86.mode |= SYSMODE_PREFIX_REPE; - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0xf4 -****************************************************************************/ -static void x86emuOp_halt(u8 X86EMU_UNUSED(op1)) -{ - START_OF_INSTR(); - DECODE_PRINTF("HALT\n"); - TRACE_AND_STEP(); - HALT_SYS(); - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0xf5 -****************************************************************************/ -static void x86emuOp_cmc(u8 X86EMU_UNUSED(op1)) -{ - /* complement the carry flag. */ - START_OF_INSTR(); - DECODE_PRINTF("CMC\n"); - TRACE_AND_STEP(); - TOGGLE_FLAG(F_CF); - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0xf6 -****************************************************************************/ -static void x86emuOp_opcF6_byte_RM(u8 X86EMU_UNUSED(op1)) -{ - int mod, rl, rh; - u8 *destreg; - uint destoffset; - u8 destval, srcval; - - /* long, drawn out code follows. Double switch for a total - of 32 cases. */ - START_OF_INSTR(); - FETCH_DECODE_MODRM(mod, rh, rl); - switch (mod) { - case 0: /* mod=00 */ - switch (rh) { - case 0: /* test byte imm */ - DECODE_PRINTF("TEST\tBYTE PTR "); - destoffset = decode_rm00_address(rl); - DECODE_PRINTF(","); - srcval = fetch_byte_imm(); - DECODE_PRINTF2("%02x\n", srcval); - destval = fetch_data_byte(destoffset); - TRACE_AND_STEP(); - test_byte(destval, srcval); - break; - case 1: - DECODE_PRINTF("ILLEGAL OP MOD=00 RH=01 OP=F6\n"); - HALT_SYS(); - break; - case 2: - DECODE_PRINTF("NOT\tBYTE PTR "); - destoffset = decode_rm00_address(rl); - DECODE_PRINTF("\n"); - destval = fetch_data_byte(destoffset); - TRACE_AND_STEP(); - destval = not_byte(destval); - store_data_byte(destoffset, destval); - break; - case 3: - DECODE_PRINTF("NEG\tBYTE PTR "); - destoffset = decode_rm00_address(rl); - DECODE_PRINTF("\n"); - destval = fetch_data_byte(destoffset); - TRACE_AND_STEP(); - destval = neg_byte(destval); - store_data_byte(destoffset, destval); - break; - case 4: - DECODE_PRINTF("MUL\tBYTE PTR "); - destoffset = decode_rm00_address(rl); - DECODE_PRINTF("\n"); - destval = fetch_data_byte(destoffset); - TRACE_AND_STEP(); - mul_byte(destval); - break; - case 5: - DECODE_PRINTF("IMUL\tBYTE PTR "); - destoffset = decode_rm00_address(rl); - DECODE_PRINTF("\n"); - destval = fetch_data_byte(destoffset); - TRACE_AND_STEP(); - imul_byte(destval); - break; - case 6: - DECODE_PRINTF("DIV\tBYTE PTR "); - destoffset = decode_rm00_address(rl); - DECODE_PRINTF("\n"); - destval = fetch_data_byte(destoffset); - TRACE_AND_STEP(); - div_byte(destval); - break; - case 7: - DECODE_PRINTF("IDIV\tBYTE PTR "); - destoffset = decode_rm00_address(rl); - DECODE_PRINTF("\n"); - destval = fetch_data_byte(destoffset); - TRACE_AND_STEP(); - idiv_byte(destval); - break; - } - break; /* end mod==00 */ - case 1: /* mod=01 */ - switch (rh) { - case 0: /* test byte imm */ - DECODE_PRINTF("TEST\tBYTE PTR "); - destoffset = decode_rm01_address(rl); - DECODE_PRINTF(","); - srcval = fetch_byte_imm(); - DECODE_PRINTF2("%02x\n", srcval); - destval = fetch_data_byte(destoffset); - TRACE_AND_STEP(); - test_byte(destval, srcval); - break; - case 1: - DECODE_PRINTF("ILLEGAL OP MOD=01 RH=01 OP=F6\n"); - HALT_SYS(); - break; - case 2: - DECODE_PRINTF("NOT\tBYTE PTR "); - destoffset = decode_rm01_address(rl); - DECODE_PRINTF("\n"); - destval = fetch_data_byte(destoffset); - TRACE_AND_STEP(); - destval = not_byte(destval); - store_data_byte(destoffset, destval); - break; - case 3: - DECODE_PRINTF("NEG\tBYTE PTR "); - destoffset = decode_rm01_address(rl); - DECODE_PRINTF("\n"); - destval = fetch_data_byte(destoffset); - TRACE_AND_STEP(); - destval = neg_byte(destval); - store_data_byte(destoffset, destval); - break; - case 4: - DECODE_PRINTF("MUL\tBYTE PTR "); - destoffset = decode_rm01_address(rl); - DECODE_PRINTF("\n"); - destval = fetch_data_byte(destoffset); - TRACE_AND_STEP(); - mul_byte(destval); - break; - case 5: - DECODE_PRINTF("IMUL\tBYTE PTR "); - destoffset = decode_rm01_address(rl); - DECODE_PRINTF("\n"); - destval = fetch_data_byte(destoffset); - TRACE_AND_STEP(); - imul_byte(destval); - break; - case 6: - DECODE_PRINTF("DIV\tBYTE PTR "); - destoffset = decode_rm01_address(rl); - DECODE_PRINTF("\n"); - destval = fetch_data_byte(destoffset); - TRACE_AND_STEP(); - div_byte(destval); - break; - case 7: - DECODE_PRINTF("IDIV\tBYTE PTR "); - destoffset = decode_rm01_address(rl); - DECODE_PRINTF("\n"); - destval = fetch_data_byte(destoffset); - TRACE_AND_STEP(); - idiv_byte(destval); - break; - } - break; /* end mod==01 */ - case 2: /* mod=10 */ - switch (rh) { - case 0: /* test byte imm */ - DECODE_PRINTF("TEST\tBYTE PTR "); - destoffset = decode_rm10_address(rl); - DECODE_PRINTF(","); - srcval = fetch_byte_imm(); - DECODE_PRINTF2("%02x\n", srcval); - destval = fetch_data_byte(destoffset); - TRACE_AND_STEP(); - test_byte(destval, srcval); - break; - case 1: - DECODE_PRINTF("ILLEGAL OP MOD=10 RH=01 OP=F6\n"); - HALT_SYS(); - break; - case 2: - DECODE_PRINTF("NOT\tBYTE PTR "); - destoffset = decode_rm10_address(rl); - DECODE_PRINTF("\n"); - destval = fetch_data_byte(destoffset); - TRACE_AND_STEP(); - destval = not_byte(destval); - store_data_byte(destoffset, destval); - break; - case 3: - DECODE_PRINTF("NEG\tBYTE PTR "); - destoffset = decode_rm10_address(rl); - DECODE_PRINTF("\n"); - destval = fetch_data_byte(destoffset); - TRACE_AND_STEP(); - destval = neg_byte(destval); - store_data_byte(destoffset, destval); - break; - case 4: - DECODE_PRINTF("MUL\tBYTE PTR "); - destoffset = decode_rm10_address(rl); - DECODE_PRINTF("\n"); - destval = fetch_data_byte(destoffset); - TRACE_AND_STEP(); - mul_byte(destval); - break; - case 5: - DECODE_PRINTF("IMUL\tBYTE PTR "); - destoffset = decode_rm10_address(rl); - DECODE_PRINTF("\n"); - destval = fetch_data_byte(destoffset); - TRACE_AND_STEP(); - imul_byte(destval); - break; - case 6: - DECODE_PRINTF("DIV\tBYTE PTR "); - destoffset = decode_rm10_address(rl); - DECODE_PRINTF("\n"); - destval = fetch_data_byte(destoffset); - TRACE_AND_STEP(); - div_byte(destval); - break; - case 7: - DECODE_PRINTF("IDIV\tBYTE PTR "); - destoffset = decode_rm10_address(rl); - DECODE_PRINTF("\n"); - destval = fetch_data_byte(destoffset); - TRACE_AND_STEP(); - idiv_byte(destval); - break; - } - break; /* end mod==10 */ - case 3: /* mod=11 */ - switch (rh) { - case 0: /* test byte imm */ - DECODE_PRINTF("TEST\t"); - destreg = DECODE_RM_BYTE_REGISTER(rl); - DECODE_PRINTF(","); - srcval = fetch_byte_imm(); - DECODE_PRINTF2("%02x\n", srcval); - TRACE_AND_STEP(); - test_byte(*destreg, srcval); - break; - case 1: - DECODE_PRINTF("ILLEGAL OP MOD=00 RH=01 OP=F6\n"); - HALT_SYS(); - break; - case 2: - DECODE_PRINTF("NOT\t"); - destreg = DECODE_RM_BYTE_REGISTER(rl); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - *destreg = not_byte(*destreg); - break; - case 3: - DECODE_PRINTF("NEG\t"); - destreg = DECODE_RM_BYTE_REGISTER(rl); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - *destreg = neg_byte(*destreg); - break; - case 4: - DECODE_PRINTF("MUL\t"); - destreg = DECODE_RM_BYTE_REGISTER(rl); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - mul_byte(*destreg); /*!!! */ - break; - case 5: - DECODE_PRINTF("IMUL\t"); - destreg = DECODE_RM_BYTE_REGISTER(rl); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - imul_byte(*destreg); - break; - case 6: - DECODE_PRINTF("DIV\t"); - destreg = DECODE_RM_BYTE_REGISTER(rl); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - div_byte(*destreg); - break; - case 7: - DECODE_PRINTF("IDIV\t"); - destreg = DECODE_RM_BYTE_REGISTER(rl); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - idiv_byte(*destreg); - break; - } - break; /* end mod==11 */ - } - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0xf7 -****************************************************************************/ -static void x86emuOp_opcF7_word_RM(u8 X86EMU_UNUSED(op1)) -{ - int mod, rl, rh; - uint destoffset; - - /* long, drawn out code follows. Double switch for a total - of 32 cases. */ - START_OF_INSTR(); - FETCH_DECODE_MODRM(mod, rh, rl); - switch (mod) { - case 0: /* mod=00 */ - switch (rh) { - case 0: /* test word imm */ - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - u32 destval,srcval; - - DECODE_PRINTF("TEST\tDWORD PTR "); - destoffset = decode_rm00_address(rl); - DECODE_PRINTF(","); - srcval = fetch_long_imm(); - DECODE_PRINTF2("%x\n", srcval); - destval = fetch_data_long(destoffset); - TRACE_AND_STEP(); - test_long(destval, srcval); - } else { - u16 destval,srcval; - - DECODE_PRINTF("TEST\tWORD PTR "); - destoffset = decode_rm00_address(rl); - DECODE_PRINTF(","); - srcval = fetch_word_imm(); - DECODE_PRINTF2("%x\n", srcval); - destval = fetch_data_word(destoffset); - TRACE_AND_STEP(); - test_word(destval, srcval); - } - break; - case 1: - DECODE_PRINTF("ILLEGAL OP MOD=00 RH=01 OP=F7\n"); - HALT_SYS(); - break; - case 2: - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - u32 destval; - - DECODE_PRINTF("NOT\tDWORD PTR "); - destoffset = decode_rm00_address(rl); - DECODE_PRINTF("\n"); - destval = fetch_data_long(destoffset); - TRACE_AND_STEP(); - destval = not_long(destval); - store_data_long(destoffset, destval); - } else { - u16 destval; - - DECODE_PRINTF("NOT\tWORD PTR "); - destoffset = decode_rm00_address(rl); - DECODE_PRINTF("\n"); - destval = fetch_data_word(destoffset); - TRACE_AND_STEP(); - destval = not_word(destval); - store_data_word(destoffset, destval); - } - break; - case 3: - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - u32 destval; - - DECODE_PRINTF("NEG\tDWORD PTR "); - destoffset = decode_rm00_address(rl); - DECODE_PRINTF("\n"); - destval = fetch_data_long(destoffset); - TRACE_AND_STEP(); - destval = neg_long(destval); - store_data_long(destoffset, destval); - } else { - u16 destval; - - DECODE_PRINTF("NEG\tWORD PTR "); - destoffset = decode_rm00_address(rl); - DECODE_PRINTF("\n"); - destval = fetch_data_word(destoffset); - TRACE_AND_STEP(); - destval = neg_word(destval); - store_data_word(destoffset, destval); - } - break; - case 4: - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - u32 destval; - - DECODE_PRINTF("MUL\tDWORD PTR "); - destoffset = decode_rm00_address(rl); - DECODE_PRINTF("\n"); - destval = fetch_data_long(destoffset); - TRACE_AND_STEP(); - mul_long(destval); - } else { - u16 destval; - - DECODE_PRINTF("MUL\tWORD PTR "); - destoffset = decode_rm00_address(rl); - DECODE_PRINTF("\n"); - destval = fetch_data_word(destoffset); - TRACE_AND_STEP(); - mul_word(destval); - } - break; - case 5: - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - u32 destval; - - DECODE_PRINTF("IMUL\tDWORD PTR "); - destoffset = decode_rm00_address(rl); - DECODE_PRINTF("\n"); - destval = fetch_data_long(destoffset); - TRACE_AND_STEP(); - imul_long(destval); - } else { - u16 destval; - - DECODE_PRINTF("IMUL\tWORD PTR "); - destoffset = decode_rm00_address(rl); - DECODE_PRINTF("\n"); - destval = fetch_data_word(destoffset); - TRACE_AND_STEP(); - imul_word(destval); - } - break; - case 6: - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - u32 destval; - - DECODE_PRINTF("DIV\tDWORD PTR "); - destoffset = decode_rm00_address(rl); - DECODE_PRINTF("\n"); - destval = fetch_data_long(destoffset); - TRACE_AND_STEP(); - div_long(destval); - } else { - u16 destval; - - DECODE_PRINTF("DIV\tWORD PTR "); - destoffset = decode_rm00_address(rl); - DECODE_PRINTF("\n"); - destval = fetch_data_word(destoffset); - TRACE_AND_STEP(); - div_word(destval); - } - break; - case 7: - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - u32 destval; - - DECODE_PRINTF("IDIV\tDWORD PTR "); - destoffset = decode_rm00_address(rl); - DECODE_PRINTF("\n"); - destval = fetch_data_long(destoffset); - TRACE_AND_STEP(); - idiv_long(destval); - } else { - u16 destval; - - DECODE_PRINTF("IDIV\tWORD PTR "); - destoffset = decode_rm00_address(rl); - DECODE_PRINTF("\n"); - destval = fetch_data_word(destoffset); - TRACE_AND_STEP(); - idiv_word(destval); - } - break; - } - break; /* end mod==00 */ - case 1: /* mod=01 */ - switch (rh) { - case 0: /* test word imm */ - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - u32 destval,srcval; - - DECODE_PRINTF("TEST\tDWORD PTR "); - destoffset = decode_rm01_address(rl); - DECODE_PRINTF(","); - srcval = fetch_long_imm(); - DECODE_PRINTF2("%x\n", srcval); - destval = fetch_data_long(destoffset); - TRACE_AND_STEP(); - test_long(destval, srcval); - } else { - u16 destval,srcval; - - DECODE_PRINTF("TEST\tWORD PTR "); - destoffset = decode_rm01_address(rl); - DECODE_PRINTF(","); - srcval = fetch_word_imm(); - DECODE_PRINTF2("%x\n", srcval); - destval = fetch_data_word(destoffset); - TRACE_AND_STEP(); - test_word(destval, srcval); - } - break; - case 1: - DECODE_PRINTF("ILLEGAL OP MOD=01 RH=01 OP=F6\n"); - HALT_SYS(); - break; - case 2: - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - u32 destval; - - DECODE_PRINTF("NOT\tDWORD PTR "); - destoffset = decode_rm01_address(rl); - DECODE_PRINTF("\n"); - destval = fetch_data_long(destoffset); - TRACE_AND_STEP(); - destval = not_long(destval); - store_data_long(destoffset, destval); - } else { - u16 destval; - - DECODE_PRINTF("NOT\tWORD PTR "); - destoffset = decode_rm01_address(rl); - DECODE_PRINTF("\n"); - destval = fetch_data_word(destoffset); - TRACE_AND_STEP(); - destval = not_word(destval); - store_data_word(destoffset, destval); - } - break; - case 3: - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - u32 destval; - - DECODE_PRINTF("NEG\tDWORD PTR "); - destoffset = decode_rm01_address(rl); - DECODE_PRINTF("\n"); - destval = fetch_data_long(destoffset); - TRACE_AND_STEP(); - destval = neg_long(destval); - store_data_long(destoffset, destval); - } else { - u16 destval; - - DECODE_PRINTF("NEG\tWORD PTR "); - destoffset = decode_rm01_address(rl); - DECODE_PRINTF("\n"); - destval = fetch_data_word(destoffset); - TRACE_AND_STEP(); - destval = neg_word(destval); - store_data_word(destoffset, destval); - } - break; - case 4: - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - u32 destval; - - DECODE_PRINTF("MUL\tDWORD PTR "); - destoffset = decode_rm01_address(rl); - DECODE_PRINTF("\n"); - destval = fetch_data_long(destoffset); - TRACE_AND_STEP(); - mul_long(destval); - } else { - u16 destval; - - DECODE_PRINTF("MUL\tWORD PTR "); - destoffset = decode_rm01_address(rl); - DECODE_PRINTF("\n"); - destval = fetch_data_word(destoffset); - TRACE_AND_STEP(); - mul_word(destval); - } - break; - case 5: - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - u32 destval; - - DECODE_PRINTF("IMUL\tDWORD PTR "); - destoffset = decode_rm01_address(rl); - DECODE_PRINTF("\n"); - destval = fetch_data_long(destoffset); - TRACE_AND_STEP(); - imul_long(destval); - } else { - u16 destval; - - DECODE_PRINTF("IMUL\tWORD PTR "); - destoffset = decode_rm01_address(rl); - DECODE_PRINTF("\n"); - destval = fetch_data_word(destoffset); - TRACE_AND_STEP(); - imul_word(destval); - } - break; - case 6: - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - u32 destval; - - DECODE_PRINTF("DIV\tDWORD PTR "); - destoffset = decode_rm01_address(rl); - DECODE_PRINTF("\n"); - destval = fetch_data_long(destoffset); - TRACE_AND_STEP(); - div_long(destval); - } else { - u16 destval; - - DECODE_PRINTF("DIV\tWORD PTR "); - destoffset = decode_rm01_address(rl); - DECODE_PRINTF("\n"); - destval = fetch_data_word(destoffset); - TRACE_AND_STEP(); - div_word(destval); - } - break; - case 7: - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - u32 destval; - - DECODE_PRINTF("IDIV\tDWORD PTR "); - destoffset = decode_rm01_address(rl); - DECODE_PRINTF("\n"); - destval = fetch_data_long(destoffset); - TRACE_AND_STEP(); - idiv_long(destval); - } else { - u16 destval; - - DECODE_PRINTF("IDIV\tWORD PTR "); - destoffset = decode_rm01_address(rl); - DECODE_PRINTF("\n"); - destval = fetch_data_word(destoffset); - TRACE_AND_STEP(); - idiv_word(destval); - } - break; - } - break; /* end mod==01 */ - case 2: /* mod=10 */ - switch (rh) { - case 0: /* test word imm */ - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - u32 destval,srcval; - - DECODE_PRINTF("TEST\tDWORD PTR "); - destoffset = decode_rm10_address(rl); - DECODE_PRINTF(","); - srcval = fetch_long_imm(); - DECODE_PRINTF2("%x\n", srcval); - destval = fetch_data_long(destoffset); - TRACE_AND_STEP(); - test_long(destval, srcval); - } else { - u16 destval,srcval; - - DECODE_PRINTF("TEST\tWORD PTR "); - destoffset = decode_rm10_address(rl); - DECODE_PRINTF(","); - srcval = fetch_word_imm(); - DECODE_PRINTF2("%x\n", srcval); - destval = fetch_data_word(destoffset); - TRACE_AND_STEP(); - test_word(destval, srcval); - } - break; - case 1: - DECODE_PRINTF("ILLEGAL OP MOD=10 RH=01 OP=F6\n"); - HALT_SYS(); - break; - case 2: - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - u32 destval; - - DECODE_PRINTF("NOT\tDWORD PTR "); - destoffset = decode_rm10_address(rl); - DECODE_PRINTF("\n"); - destval = fetch_data_long(destoffset); - TRACE_AND_STEP(); - destval = not_long(destval); - store_data_long(destoffset, destval); - } else { - u16 destval; - - DECODE_PRINTF("NOT\tWORD PTR "); - destoffset = decode_rm10_address(rl); - DECODE_PRINTF("\n"); - destval = fetch_data_word(destoffset); - TRACE_AND_STEP(); - destval = not_word(destval); - store_data_word(destoffset, destval); - } - break; - case 3: - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - u32 destval; - - DECODE_PRINTF("NEG\tDWORD PTR "); - destoffset = decode_rm10_address(rl); - DECODE_PRINTF("\n"); - destval = fetch_data_long(destoffset); - TRACE_AND_STEP(); - destval = neg_long(destval); - store_data_long(destoffset, destval); - } else { - u16 destval; - - DECODE_PRINTF("NEG\tWORD PTR "); - destoffset = decode_rm10_address(rl); - DECODE_PRINTF("\n"); - destval = fetch_data_word(destoffset); - TRACE_AND_STEP(); - destval = neg_word(destval); - store_data_word(destoffset, destval); - } - break; - case 4: - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - u32 destval; - - DECODE_PRINTF("MUL\tDWORD PTR "); - destoffset = decode_rm10_address(rl); - DECODE_PRINTF("\n"); - destval = fetch_data_long(destoffset); - TRACE_AND_STEP(); - mul_long(destval); - } else { - u16 destval; - - DECODE_PRINTF("MUL\tWORD PTR "); - destoffset = decode_rm10_address(rl); - DECODE_PRINTF("\n"); - destval = fetch_data_word(destoffset); - TRACE_AND_STEP(); - mul_word(destval); - } - break; - case 5: - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - u32 destval; - - DECODE_PRINTF("IMUL\tDWORD PTR "); - destoffset = decode_rm10_address(rl); - DECODE_PRINTF("\n"); - destval = fetch_data_long(destoffset); - TRACE_AND_STEP(); - imul_long(destval); - } else { - u16 destval; - - DECODE_PRINTF("IMUL\tWORD PTR "); - destoffset = decode_rm10_address(rl); - DECODE_PRINTF("\n"); - destval = fetch_data_word(destoffset); - TRACE_AND_STEP(); - imul_word(destval); - } - break; - case 6: - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - u32 destval; - - DECODE_PRINTF("DIV\tDWORD PTR "); - destoffset = decode_rm10_address(rl); - DECODE_PRINTF("\n"); - destval = fetch_data_long(destoffset); - TRACE_AND_STEP(); - div_long(destval); - } else { - u16 destval; - - DECODE_PRINTF("DIV\tWORD PTR "); - destoffset = decode_rm10_address(rl); - DECODE_PRINTF("\n"); - destval = fetch_data_word(destoffset); - TRACE_AND_STEP(); - div_word(destval); - } - break; - case 7: - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - u32 destval; - - DECODE_PRINTF("IDIV\tDWORD PTR "); - destoffset = decode_rm10_address(rl); - DECODE_PRINTF("\n"); - destval = fetch_data_long(destoffset); - TRACE_AND_STEP(); - idiv_long(destval); - } else { - u16 destval; - - DECODE_PRINTF("IDIV\tWORD PTR "); - destoffset = decode_rm10_address(rl); - DECODE_PRINTF("\n"); - destval = fetch_data_word(destoffset); - TRACE_AND_STEP(); - idiv_word(destval); - } - break; - } - break; /* end mod==10 */ - case 3: /* mod=11 */ - switch (rh) { - case 0: /* test word imm */ - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - u32 *destreg; - u32 srcval; - - DECODE_PRINTF("TEST\t"); - destreg = DECODE_RM_LONG_REGISTER(rl); - DECODE_PRINTF(","); - srcval = fetch_long_imm(); - DECODE_PRINTF2("%x\n", srcval); - TRACE_AND_STEP(); - test_long(*destreg, srcval); - } else { - u16 *destreg; - u16 srcval; - - DECODE_PRINTF("TEST\t"); - destreg = DECODE_RM_WORD_REGISTER(rl); - DECODE_PRINTF(","); - srcval = fetch_word_imm(); - DECODE_PRINTF2("%x\n", srcval); - TRACE_AND_STEP(); - test_word(*destreg, srcval); - } - break; - case 1: - DECODE_PRINTF("ILLEGAL OP MOD=00 RH=01 OP=F6\n"); - HALT_SYS(); - break; - case 2: - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - u32 *destreg; - - DECODE_PRINTF("NOT\t"); - destreg = DECODE_RM_LONG_REGISTER(rl); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - *destreg = not_long(*destreg); - } else { - u16 *destreg; - - DECODE_PRINTF("NOT\t"); - destreg = DECODE_RM_WORD_REGISTER(rl); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - *destreg = not_word(*destreg); - } - break; - case 3: - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - u32 *destreg; - - DECODE_PRINTF("NEG\t"); - destreg = DECODE_RM_LONG_REGISTER(rl); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - *destreg = neg_long(*destreg); - } else { - u16 *destreg; - - DECODE_PRINTF("NEG\t"); - destreg = DECODE_RM_WORD_REGISTER(rl); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - *destreg = neg_word(*destreg); - } - break; - case 4: - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - u32 *destreg; - - DECODE_PRINTF("MUL\t"); - destreg = DECODE_RM_LONG_REGISTER(rl); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - mul_long(*destreg); /*!!! */ - } else { - u16 *destreg; - - DECODE_PRINTF("MUL\t"); - destreg = DECODE_RM_WORD_REGISTER(rl); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - mul_word(*destreg); /*!!! */ - } - break; - case 5: - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - u32 *destreg; - - DECODE_PRINTF("IMUL\t"); - destreg = DECODE_RM_LONG_REGISTER(rl); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - imul_long(*destreg); - } else { - u16 *destreg; - - DECODE_PRINTF("IMUL\t"); - destreg = DECODE_RM_WORD_REGISTER(rl); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - imul_word(*destreg); - } - break; - case 6: - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - u32 *destreg; - - DECODE_PRINTF("DIV\t"); - destreg = DECODE_RM_LONG_REGISTER(rl); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - div_long(*destreg); - } else { - u16 *destreg; - - DECODE_PRINTF("DIV\t"); - destreg = DECODE_RM_WORD_REGISTER(rl); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - div_word(*destreg); - } - break; - case 7: - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - u32 *destreg; - - DECODE_PRINTF("IDIV\t"); - destreg = DECODE_RM_LONG_REGISTER(rl); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - idiv_long(*destreg); - } else { - u16 *destreg; - - DECODE_PRINTF("IDIV\t"); - destreg = DECODE_RM_WORD_REGISTER(rl); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - idiv_word(*destreg); - } - break; - } - break; /* end mod==11 */ - } - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0xf8 -****************************************************************************/ -static void x86emuOp_clc(u8 X86EMU_UNUSED(op1)) -{ - /* clear the carry flag. */ - START_OF_INSTR(); - DECODE_PRINTF("CLC\n"); - TRACE_AND_STEP(); - CLEAR_FLAG(F_CF); - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0xf9 -****************************************************************************/ -static void x86emuOp_stc(u8 X86EMU_UNUSED(op1)) -{ - /* set the carry flag. */ - START_OF_INSTR(); - DECODE_PRINTF("STC\n"); - TRACE_AND_STEP(); - SET_FLAG(F_CF); - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0xfa -****************************************************************************/ -static void x86emuOp_cli(u8 X86EMU_UNUSED(op1)) -{ - /* clear interrupts. */ - START_OF_INSTR(); - DECODE_PRINTF("CLI\n"); - TRACE_AND_STEP(); - CLEAR_FLAG(F_IF); - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0xfb -****************************************************************************/ -static void x86emuOp_sti(u8 X86EMU_UNUSED(op1)) -{ - /* enable interrupts. */ - START_OF_INSTR(); - DECODE_PRINTF("STI\n"); - TRACE_AND_STEP(); - SET_FLAG(F_IF); - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0xfc -****************************************************************************/ -static void x86emuOp_cld(u8 X86EMU_UNUSED(op1)) -{ - /* clear interrupts. */ - START_OF_INSTR(); - DECODE_PRINTF("CLD\n"); - TRACE_AND_STEP(); - CLEAR_FLAG(F_DF); - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0xfd -****************************************************************************/ -static void x86emuOp_std(u8 X86EMU_UNUSED(op1)) -{ - /* clear interrupts. */ - START_OF_INSTR(); - DECODE_PRINTF("STD\n"); - TRACE_AND_STEP(); - SET_FLAG(F_DF); - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0xfe -****************************************************************************/ -static void x86emuOp_opcFE_byte_RM(u8 X86EMU_UNUSED(op1)) -{ - int mod, rh, rl; - u8 destval; - uint destoffset; - u8 *destreg; - - /* Yet another special case instruction. */ - START_OF_INSTR(); - FETCH_DECODE_MODRM(mod, rh, rl); -#ifdef DEBUG - if (DEBUG_DECODE()) { - /* XXX DECODE_PRINTF may be changed to something more - general, so that it is important to leave the strings - in the same format, even though the result is that the - above test is done twice. */ - - switch (rh) { - case 0: - DECODE_PRINTF("INC\t"); - break; - case 1: - DECODE_PRINTF("DEC\t"); - break; - case 2: - case 3: - case 4: - case 5: - case 6: - case 7: - DECODE_PRINTF2("ILLEGAL OP MAJOR OP 0xFE MINOR OP %x \n", mod); - HALT_SYS(); - break; - } - } -#endif - switch (mod) { - case 0: - DECODE_PRINTF("BYTE PTR "); - destoffset = decode_rm00_address(rl); - DECODE_PRINTF("\n"); - switch (rh) { - case 0: /* inc word ptr ... */ - destval = fetch_data_byte(destoffset); - TRACE_AND_STEP(); - destval = inc_byte(destval); - store_data_byte(destoffset, destval); - break; - case 1: /* dec word ptr ... */ - destval = fetch_data_byte(destoffset); - TRACE_AND_STEP(); - destval = dec_byte(destval); - store_data_byte(destoffset, destval); - break; - } - break; - case 1: - DECODE_PRINTF("BYTE PTR "); - destoffset = decode_rm01_address(rl); - DECODE_PRINTF("\n"); - switch (rh) { - case 0: - destval = fetch_data_byte(destoffset); - TRACE_AND_STEP(); - destval = inc_byte(destval); - store_data_byte(destoffset, destval); - break; - case 1: - destval = fetch_data_byte(destoffset); - TRACE_AND_STEP(); - destval = dec_byte(destval); - store_data_byte(destoffset, destval); - break; - } - break; - case 2: - DECODE_PRINTF("BYTE PTR "); - destoffset = decode_rm10_address(rl); - DECODE_PRINTF("\n"); - switch (rh) { - case 0: - destval = fetch_data_byte(destoffset); - TRACE_AND_STEP(); - destval = inc_byte(destval); - store_data_byte(destoffset, destval); - break; - case 1: - destval = fetch_data_byte(destoffset); - TRACE_AND_STEP(); - destval = dec_byte(destval); - store_data_byte(destoffset, destval); - break; - } - break; - case 3: - destreg = DECODE_RM_BYTE_REGISTER(rl); - DECODE_PRINTF("\n"); - switch (rh) { - case 0: - TRACE_AND_STEP(); - *destreg = inc_byte(*destreg); - break; - case 1: - TRACE_AND_STEP(); - *destreg = dec_byte(*destreg); - break; - } - break; - } - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0xff -****************************************************************************/ -static void x86emuOp_opcFF_word_RM(u8 X86EMU_UNUSED(op1)) -{ - int mod, rh, rl; - uint destoffset = 0; - u16 *destreg; - u16 destval,destval2; - - /* Yet another special case instruction. */ - START_OF_INSTR(); - FETCH_DECODE_MODRM(mod, rh, rl); -#ifdef DEBUG - if (DEBUG_DECODE()) { - /* XXX DECODE_PRINTF may be changed to something more - general, so that it is important to leave the strings - in the same format, even though the result is that the - above test is done twice. */ - - switch (rh) { - case 0: - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - DECODE_PRINTF("INC\tDWORD PTR "); - } else { - DECODE_PRINTF("INC\tWORD PTR "); - } - break; - case 1: - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - DECODE_PRINTF("DEC\tDWORD PTR "); - } else { - DECODE_PRINTF("DEC\tWORD PTR "); - } - break; - case 2: - DECODE_PRINTF("CALL\t"); - break; - case 3: - DECODE_PRINTF("CALL\tFAR "); - break; - case 4: - DECODE_PRINTF("JMP\t"); - break; - case 5: - DECODE_PRINTF("JMP\tFAR "); - break; - case 6: - DECODE_PRINTF("PUSH\t"); - break; - case 7: - DECODE_PRINTF("ILLEGAL DECODING OF OPCODE FF\t"); - HALT_SYS(); - break; - } - } -#endif - switch (mod) { - case 0: - destoffset = decode_rm00_address(rl); - DECODE_PRINTF("\n"); - switch (rh) { - case 0: /* inc word ptr ... */ - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - u32 destval; - - destval = fetch_data_long(destoffset); - TRACE_AND_STEP(); - destval = inc_long(destval); - store_data_long(destoffset, destval); - } else { - u16 destval; - - destval = fetch_data_word(destoffset); - TRACE_AND_STEP(); - destval = inc_word(destval); - store_data_word(destoffset, destval); - } - break; - case 1: /* dec word ptr ... */ - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - u32 destval; - - destval = fetch_data_long(destoffset); - TRACE_AND_STEP(); - destval = dec_long(destval); - store_data_long(destoffset, destval); - } else { - u16 destval; - - destval = fetch_data_word(destoffset); - TRACE_AND_STEP(); - destval = dec_word(destval); - store_data_word(destoffset, destval); - } - break; - case 2: /* call word ptr ... */ - destval = fetch_data_word(destoffset); - TRACE_AND_STEP(); - push_word(M.x86.R_IP); - M.x86.R_IP = destval; - break; - case 3: /* call far ptr ... */ - destval = fetch_data_word(destoffset); - destval2 = fetch_data_word(destoffset + 2); - TRACE_AND_STEP(); - push_word(M.x86.R_CS); - M.x86.R_CS = destval2; - push_word(M.x86.R_IP); - M.x86.R_IP = destval; - break; - case 4: /* jmp word ptr ... */ - destval = fetch_data_word(destoffset); - TRACE_AND_STEP(); - M.x86.R_IP = destval; - break; - case 5: /* jmp far ptr ... */ - destval = fetch_data_word(destoffset); - destval2 = fetch_data_word(destoffset + 2); - TRACE_AND_STEP(); - M.x86.R_IP = destval; - M.x86.R_CS = destval2; - break; - case 6: /* push word ptr ... */ - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - u32 destval; - - destval = fetch_data_long(destoffset); - TRACE_AND_STEP(); - push_long(destval); - } else { - u16 destval; - - destval = fetch_data_word(destoffset); - TRACE_AND_STEP(); - push_word(destval); - } - break; - } - break; - case 1: - destoffset = decode_rm01_address(rl); - DECODE_PRINTF("\n"); - switch (rh) { - case 0: - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - u32 destval; - - destval = fetch_data_long(destoffset); - TRACE_AND_STEP(); - destval = inc_long(destval); - store_data_long(destoffset, destval); - } else { - u16 destval; - - destval = fetch_data_word(destoffset); - TRACE_AND_STEP(); - destval = inc_word(destval); - store_data_word(destoffset, destval); - } - break; - case 1: - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - u32 destval; - - destval = fetch_data_long(destoffset); - TRACE_AND_STEP(); - destval = dec_long(destval); - store_data_long(destoffset, destval); - } else { - u16 destval; - - destval = fetch_data_word(destoffset); - TRACE_AND_STEP(); - destval = dec_word(destval); - store_data_word(destoffset, destval); - } - break; - case 2: /* call word ptr ... */ - destval = fetch_data_word(destoffset); - TRACE_AND_STEP(); - push_word(M.x86.R_IP); - M.x86.R_IP = destval; - break; - case 3: /* call far ptr ... */ - destval = fetch_data_word(destoffset); - destval2 = fetch_data_word(destoffset + 2); - TRACE_AND_STEP(); - push_word(M.x86.R_CS); - M.x86.R_CS = destval2; - push_word(M.x86.R_IP); - M.x86.R_IP = destval; - break; - case 4: /* jmp word ptr ... */ - destval = fetch_data_word(destoffset); - TRACE_AND_STEP(); - M.x86.R_IP = destval; - break; - case 5: /* jmp far ptr ... */ - destval = fetch_data_word(destoffset); - destval2 = fetch_data_word(destoffset + 2); - TRACE_AND_STEP(); - M.x86.R_IP = destval; - M.x86.R_CS = destval2; - break; - case 6: /* push word ptr ... */ - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - u32 destval; - - destval = fetch_data_long(destoffset); - TRACE_AND_STEP(); - push_long(destval); - } else { - u16 destval; - - destval = fetch_data_word(destoffset); - TRACE_AND_STEP(); - push_word(destval); - } - break; - } - break; - case 2: - destoffset = decode_rm10_address(rl); - DECODE_PRINTF("\n"); - switch (rh) { - case 0: - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - u32 destval; - - destval = fetch_data_long(destoffset); - TRACE_AND_STEP(); - destval = inc_long(destval); - store_data_long(destoffset, destval); - } else { - u16 destval; - - destval = fetch_data_word(destoffset); - TRACE_AND_STEP(); - destval = inc_word(destval); - store_data_word(destoffset, destval); - } - break; - case 1: - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - u32 destval; - - destval = fetch_data_long(destoffset); - TRACE_AND_STEP(); - destval = dec_long(destval); - store_data_long(destoffset, destval); - } else { - u16 destval; - - destval = fetch_data_word(destoffset); - TRACE_AND_STEP(); - destval = dec_word(destval); - store_data_word(destoffset, destval); - } - break; - case 2: /* call word ptr ... */ - destval = fetch_data_word(destoffset); - TRACE_AND_STEP(); - push_word(M.x86.R_IP); - M.x86.R_IP = destval; - break; - case 3: /* call far ptr ... */ - destval = fetch_data_word(destoffset); - destval2 = fetch_data_word(destoffset + 2); - TRACE_AND_STEP(); - push_word(M.x86.R_CS); - M.x86.R_CS = destval2; - push_word(M.x86.R_IP); - M.x86.R_IP = destval; - break; - case 4: /* jmp word ptr ... */ - destval = fetch_data_word(destoffset); - TRACE_AND_STEP(); - M.x86.R_IP = destval; - break; - case 5: /* jmp far ptr ... */ - destval = fetch_data_word(destoffset); - destval2 = fetch_data_word(destoffset + 2); - TRACE_AND_STEP(); - M.x86.R_IP = destval; - M.x86.R_CS = destval2; - break; - case 6: /* push word ptr ... */ - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - u32 destval; - - destval = fetch_data_long(destoffset); - TRACE_AND_STEP(); - push_long(destval); - } else { - u16 destval; - - destval = fetch_data_word(destoffset); - TRACE_AND_STEP(); - push_word(destval); - } - break; - } - break; - case 3: - switch (rh) { - case 0: - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - u32 *destreg; - - destreg = DECODE_RM_LONG_REGISTER(rl); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - *destreg = inc_long(*destreg); - } else { - u16 *destreg; - - destreg = DECODE_RM_WORD_REGISTER(rl); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - *destreg = inc_word(*destreg); - } - break; - case 1: - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - u32 *destreg; - - destreg = DECODE_RM_LONG_REGISTER(rl); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - *destreg = dec_long(*destreg); - } else { - u16 *destreg; - - destreg = DECODE_RM_WORD_REGISTER(rl); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - *destreg = dec_word(*destreg); - } - break; - case 2: /* call word ptr ... */ - destreg = DECODE_RM_WORD_REGISTER(rl); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - push_word(M.x86.R_IP); - M.x86.R_IP = *destreg; - break; - case 3: /* jmp far ptr ... */ - DECODE_PRINTF("OPERATION UNDEFINED 0XFF \n"); - TRACE_AND_STEP(); - HALT_SYS(); - break; - - case 4: /* jmp ... */ - destreg = DECODE_RM_WORD_REGISTER(rl); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - M.x86.R_IP = (u16) (*destreg); - break; - case 5: /* jmp far ptr ... */ - DECODE_PRINTF("OPERATION UNDEFINED 0XFF \n"); - TRACE_AND_STEP(); - HALT_SYS(); - break; - case 6: - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - u32 *destreg; - - destreg = DECODE_RM_LONG_REGISTER(rl); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - push_long(*destreg); - } else { - u16 *destreg; - - destreg = DECODE_RM_WORD_REGISTER(rl); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - push_word(*destreg); - } - break; - } - break; - } - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); -} - -/*************************************************************************** - * Single byte operation code table: - **************************************************************************/ -void (*x86emu_optab[256])(u8) = -{ -/* 0x00 */ x86emuOp_add_byte_RM_R, -/* 0x01 */ x86emuOp_add_word_RM_R, -/* 0x02 */ x86emuOp_add_byte_R_RM, -/* 0x03 */ x86emuOp_add_word_R_RM, -/* 0x04 */ x86emuOp_add_byte_AL_IMM, -/* 0x05 */ x86emuOp_add_word_AX_IMM, -/* 0x06 */ x86emuOp_push_ES, -/* 0x07 */ x86emuOp_pop_ES, - -/* 0x08 */ x86emuOp_or_byte_RM_R, -/* 0x09 */ x86emuOp_or_word_RM_R, -/* 0x0a */ x86emuOp_or_byte_R_RM, -/* 0x0b */ x86emuOp_or_word_R_RM, -/* 0x0c */ x86emuOp_or_byte_AL_IMM, -/* 0x0d */ x86emuOp_or_word_AX_IMM, -/* 0x0e */ x86emuOp_push_CS, -/* 0x0f */ x86emuOp_two_byte, - -/* 0x10 */ x86emuOp_adc_byte_RM_R, -/* 0x11 */ x86emuOp_adc_word_RM_R, -/* 0x12 */ x86emuOp_adc_byte_R_RM, -/* 0x13 */ x86emuOp_adc_word_R_RM, -/* 0x14 */ x86emuOp_adc_byte_AL_IMM, -/* 0x15 */ x86emuOp_adc_word_AX_IMM, -/* 0x16 */ x86emuOp_push_SS, -/* 0x17 */ x86emuOp_pop_SS, - -/* 0x18 */ x86emuOp_sbb_byte_RM_R, -/* 0x19 */ x86emuOp_sbb_word_RM_R, -/* 0x1a */ x86emuOp_sbb_byte_R_RM, -/* 0x1b */ x86emuOp_sbb_word_R_RM, -/* 0x1c */ x86emuOp_sbb_byte_AL_IMM, -/* 0x1d */ x86emuOp_sbb_word_AX_IMM, -/* 0x1e */ x86emuOp_push_DS, -/* 0x1f */ x86emuOp_pop_DS, - -/* 0x20 */ x86emuOp_and_byte_RM_R, -/* 0x21 */ x86emuOp_and_word_RM_R, -/* 0x22 */ x86emuOp_and_byte_R_RM, -/* 0x23 */ x86emuOp_and_word_R_RM, -/* 0x24 */ x86emuOp_and_byte_AL_IMM, -/* 0x25 */ x86emuOp_and_word_AX_IMM, -/* 0x26 */ x86emuOp_segovr_ES, -/* 0x27 */ x86emuOp_daa, - -/* 0x28 */ x86emuOp_sub_byte_RM_R, -/* 0x29 */ x86emuOp_sub_word_RM_R, -/* 0x2a */ x86emuOp_sub_byte_R_RM, -/* 0x2b */ x86emuOp_sub_word_R_RM, -/* 0x2c */ x86emuOp_sub_byte_AL_IMM, -/* 0x2d */ x86emuOp_sub_word_AX_IMM, -/* 0x2e */ x86emuOp_segovr_CS, -/* 0x2f */ x86emuOp_das, - -/* 0x30 */ x86emuOp_xor_byte_RM_R, -/* 0x31 */ x86emuOp_xor_word_RM_R, -/* 0x32 */ x86emuOp_xor_byte_R_RM, -/* 0x33 */ x86emuOp_xor_word_R_RM, -/* 0x34 */ x86emuOp_xor_byte_AL_IMM, -/* 0x35 */ x86emuOp_xor_word_AX_IMM, -/* 0x36 */ x86emuOp_segovr_SS, -/* 0x37 */ x86emuOp_aaa, - -/* 0x38 */ x86emuOp_cmp_byte_RM_R, -/* 0x39 */ x86emuOp_cmp_word_RM_R, -/* 0x3a */ x86emuOp_cmp_byte_R_RM, -/* 0x3b */ x86emuOp_cmp_word_R_RM, -/* 0x3c */ x86emuOp_cmp_byte_AL_IMM, -/* 0x3d */ x86emuOp_cmp_word_AX_IMM, -/* 0x3e */ x86emuOp_segovr_DS, -/* 0x3f */ x86emuOp_aas, - -/* 0x40 */ x86emuOp_inc_AX, -/* 0x41 */ x86emuOp_inc_CX, -/* 0x42 */ x86emuOp_inc_DX, -/* 0x43 */ x86emuOp_inc_BX, -/* 0x44 */ x86emuOp_inc_SP, -/* 0x45 */ x86emuOp_inc_BP, -/* 0x46 */ x86emuOp_inc_SI, -/* 0x47 */ x86emuOp_inc_DI, - -/* 0x48 */ x86emuOp_dec_AX, -/* 0x49 */ x86emuOp_dec_CX, -/* 0x4a */ x86emuOp_dec_DX, -/* 0x4b */ x86emuOp_dec_BX, -/* 0x4c */ x86emuOp_dec_SP, -/* 0x4d */ x86emuOp_dec_BP, -/* 0x4e */ x86emuOp_dec_SI, -/* 0x4f */ x86emuOp_dec_DI, - -/* 0x50 */ x86emuOp_push_AX, -/* 0x51 */ x86emuOp_push_CX, -/* 0x52 */ x86emuOp_push_DX, -/* 0x53 */ x86emuOp_push_BX, -/* 0x54 */ x86emuOp_push_SP, -/* 0x55 */ x86emuOp_push_BP, -/* 0x56 */ x86emuOp_push_SI, -/* 0x57 */ x86emuOp_push_DI, - -/* 0x58 */ x86emuOp_pop_AX, -/* 0x59 */ x86emuOp_pop_CX, -/* 0x5a */ x86emuOp_pop_DX, -/* 0x5b */ x86emuOp_pop_BX, -/* 0x5c */ x86emuOp_pop_SP, -/* 0x5d */ x86emuOp_pop_BP, -/* 0x5e */ x86emuOp_pop_SI, -/* 0x5f */ x86emuOp_pop_DI, - -/* 0x60 */ x86emuOp_push_all, -/* 0x61 */ x86emuOp_pop_all, -/* 0x62 */ x86emuOp_illegal_op, /* bound */ -/* 0x63 */ x86emuOp_illegal_op, /* arpl */ -/* 0x64 */ x86emuOp_segovr_FS, -/* 0x65 */ x86emuOp_segovr_GS, -/* 0x66 */ x86emuOp_prefix_data, -/* 0x67 */ x86emuOp_prefix_addr, - -/* 0x68 */ x86emuOp_push_word_IMM, -/* 0x69 */ x86emuOp_imul_word_IMM, -/* 0x6a */ x86emuOp_push_byte_IMM, -/* 0x6b */ x86emuOp_imul_byte_IMM, -/* 0x6c */ x86emuOp_ins_byte, -/* 0x6d */ x86emuOp_ins_word, -/* 0x6e */ x86emuOp_outs_byte, -/* 0x6f */ x86emuOp_outs_word, - -/* 0x70 */ x86emuOp_jump_near_O, -/* 0x71 */ x86emuOp_jump_near_NO, -/* 0x72 */ x86emuOp_jump_near_B, -/* 0x73 */ x86emuOp_jump_near_NB, -/* 0x74 */ x86emuOp_jump_near_Z, -/* 0x75 */ x86emuOp_jump_near_NZ, -/* 0x76 */ x86emuOp_jump_near_BE, -/* 0x77 */ x86emuOp_jump_near_NBE, - -/* 0x78 */ x86emuOp_jump_near_S, -/* 0x79 */ x86emuOp_jump_near_NS, -/* 0x7a */ x86emuOp_jump_near_P, -/* 0x7b */ x86emuOp_jump_near_NP, -/* 0x7c */ x86emuOp_jump_near_L, -/* 0x7d */ x86emuOp_jump_near_NL, -/* 0x7e */ x86emuOp_jump_near_LE, -/* 0x7f */ x86emuOp_jump_near_NLE, - -/* 0x80 */ x86emuOp_opc80_byte_RM_IMM, -/* 0x81 */ x86emuOp_opc81_word_RM_IMM, -/* 0x82 */ x86emuOp_opc82_byte_RM_IMM, -/* 0x83 */ x86emuOp_opc83_word_RM_IMM, -/* 0x84 */ x86emuOp_test_byte_RM_R, -/* 0x85 */ x86emuOp_test_word_RM_R, -/* 0x86 */ x86emuOp_xchg_byte_RM_R, -/* 0x87 */ x86emuOp_xchg_word_RM_R, - -/* 0x88 */ x86emuOp_mov_byte_RM_R, -/* 0x89 */ x86emuOp_mov_word_RM_R, -/* 0x8a */ x86emuOp_mov_byte_R_RM, -/* 0x8b */ x86emuOp_mov_word_R_RM, -/* 0x8c */ x86emuOp_mov_word_RM_SR, -/* 0x8d */ x86emuOp_lea_word_R_M, -/* 0x8e */ x86emuOp_mov_word_SR_RM, -/* 0x8f */ x86emuOp_pop_RM, - -/* 0x90 */ x86emuOp_nop, -/* 0x91 */ x86emuOp_xchg_word_AX_CX, -/* 0x92 */ x86emuOp_xchg_word_AX_DX, -/* 0x93 */ x86emuOp_xchg_word_AX_BX, -/* 0x94 */ x86emuOp_xchg_word_AX_SP, -/* 0x95 */ x86emuOp_xchg_word_AX_BP, -/* 0x96 */ x86emuOp_xchg_word_AX_SI, -/* 0x97 */ x86emuOp_xchg_word_AX_DI, - -/* 0x98 */ x86emuOp_cbw, -/* 0x99 */ x86emuOp_cwd, -/* 0x9a */ x86emuOp_call_far_IMM, -/* 0x9b */ x86emuOp_wait, -/* 0x9c */ x86emuOp_pushf_word, -/* 0x9d */ x86emuOp_popf_word, -/* 0x9e */ x86emuOp_sahf, -/* 0x9f */ x86emuOp_lahf, - -/* 0xa0 */ x86emuOp_mov_AL_M_IMM, -/* 0xa1 */ x86emuOp_mov_AX_M_IMM, -/* 0xa2 */ x86emuOp_mov_M_AL_IMM, -/* 0xa3 */ x86emuOp_mov_M_AX_IMM, -/* 0xa4 */ x86emuOp_movs_byte, -/* 0xa5 */ x86emuOp_movs_word, -/* 0xa6 */ x86emuOp_cmps_byte, -/* 0xa7 */ x86emuOp_cmps_word, -/* 0xa8 */ x86emuOp_test_AL_IMM, -/* 0xa9 */ x86emuOp_test_AX_IMM, -/* 0xaa */ x86emuOp_stos_byte, -/* 0xab */ x86emuOp_stos_word, -/* 0xac */ x86emuOp_lods_byte, -/* 0xad */ x86emuOp_lods_word, -/* 0xac */ x86emuOp_scas_byte, -/* 0xad */ x86emuOp_scas_word, - - -/* 0xb0 */ x86emuOp_mov_byte_AL_IMM, -/* 0xb1 */ x86emuOp_mov_byte_CL_IMM, -/* 0xb2 */ x86emuOp_mov_byte_DL_IMM, -/* 0xb3 */ x86emuOp_mov_byte_BL_IMM, -/* 0xb4 */ x86emuOp_mov_byte_AH_IMM, -/* 0xb5 */ x86emuOp_mov_byte_CH_IMM, -/* 0xb6 */ x86emuOp_mov_byte_DH_IMM, -/* 0xb7 */ x86emuOp_mov_byte_BH_IMM, - -/* 0xb8 */ x86emuOp_mov_word_AX_IMM, -/* 0xb9 */ x86emuOp_mov_word_CX_IMM, -/* 0xba */ x86emuOp_mov_word_DX_IMM, -/* 0xbb */ x86emuOp_mov_word_BX_IMM, -/* 0xbc */ x86emuOp_mov_word_SP_IMM, -/* 0xbd */ x86emuOp_mov_word_BP_IMM, -/* 0xbe */ x86emuOp_mov_word_SI_IMM, -/* 0xbf */ x86emuOp_mov_word_DI_IMM, - -/* 0xc0 */ x86emuOp_opcC0_byte_RM_MEM, -/* 0xc1 */ x86emuOp_opcC1_word_RM_MEM, -/* 0xc2 */ x86emuOp_ret_near_IMM, -/* 0xc3 */ x86emuOp_ret_near, -/* 0xc4 */ x86emuOp_les_R_IMM, -/* 0xc5 */ x86emuOp_lds_R_IMM, -/* 0xc6 */ x86emuOp_mov_byte_RM_IMM, -/* 0xc7 */ x86emuOp_mov_word_RM_IMM, -/* 0xc8 */ x86emuOp_enter, -/* 0xc9 */ x86emuOp_leave, -/* 0xca */ x86emuOp_ret_far_IMM, -/* 0xcb */ x86emuOp_ret_far, -/* 0xcc */ x86emuOp_int3, -/* 0xcd */ x86emuOp_int_IMM, -/* 0xce */ x86emuOp_into, -/* 0xcf */ x86emuOp_iret, - -/* 0xd0 */ x86emuOp_opcD0_byte_RM_1, -/* 0xd1 */ x86emuOp_opcD1_word_RM_1, -/* 0xd2 */ x86emuOp_opcD2_byte_RM_CL, -/* 0xd3 */ x86emuOp_opcD3_word_RM_CL, -/* 0xd4 */ x86emuOp_aam, -/* 0xd5 */ x86emuOp_aad, -/* 0xd6 */ x86emuOp_illegal_op, /* Undocumented SETALC instruction */ -/* 0xd7 */ x86emuOp_xlat, -/* 0xd8 */ x86emuOp_esc_coprocess_d8, -/* 0xd9 */ x86emuOp_esc_coprocess_d9, -/* 0xda */ x86emuOp_esc_coprocess_da, -/* 0xdb */ x86emuOp_esc_coprocess_db, -/* 0xdc */ x86emuOp_esc_coprocess_dc, -/* 0xdd */ x86emuOp_esc_coprocess_dd, -/* 0xde */ x86emuOp_esc_coprocess_de, -/* 0xdf */ x86emuOp_esc_coprocess_df, - -/* 0xe0 */ x86emuOp_loopne, -/* 0xe1 */ x86emuOp_loope, -/* 0xe2 */ x86emuOp_loop, -/* 0xe3 */ x86emuOp_jcxz, -/* 0xe4 */ x86emuOp_in_byte_AL_IMM, -/* 0xe5 */ x86emuOp_in_word_AX_IMM, -/* 0xe6 */ x86emuOp_out_byte_IMM_AL, -/* 0xe7 */ x86emuOp_out_word_IMM_AX, - -/* 0xe8 */ x86emuOp_call_near_IMM, -/* 0xe9 */ x86emuOp_jump_near_IMM, -/* 0xea */ x86emuOp_jump_far_IMM, -/* 0xeb */ x86emuOp_jump_byte_IMM, -/* 0xec */ x86emuOp_in_byte_AL_DX, -/* 0xed */ x86emuOp_in_word_AX_DX, -/* 0xee */ x86emuOp_out_byte_DX_AL, -/* 0xef */ x86emuOp_out_word_DX_AX, - -/* 0xf0 */ x86emuOp_lock, -/* 0xf1 */ x86emuOp_illegal_op, -/* 0xf2 */ x86emuOp_repne, -/* 0xf3 */ x86emuOp_repe, -/* 0xf4 */ x86emuOp_halt, -/* 0xf5 */ x86emuOp_cmc, -/* 0xf6 */ x86emuOp_opcF6_byte_RM, -/* 0xf7 */ x86emuOp_opcF7_word_RM, - -/* 0xf8 */ x86emuOp_clc, -/* 0xf9 */ x86emuOp_stc, -/* 0xfa */ x86emuOp_cli, -/* 0xfb */ x86emuOp_sti, -/* 0xfc */ x86emuOp_cld, -/* 0xfd */ x86emuOp_std, -/* 0xfe */ x86emuOp_opcFE_byte_RM, -/* 0xff */ x86emuOp_opcFF_word_RM, -}; diff --git a/x86emu/ops2.c b/x86emu/ops2.c deleted file mode 100644 index 39bd041..0000000 --- a/x86emu/ops2.c +++ /dev/null @@ -1,2897 +0,0 @@ -/**************************************************************************** -* -* Realmode X86 Emulator Library -* -* Copyright (C) 1996-1999 SciTech Software, Inc. -* Copyright (C) David Mosberger-Tang -* Copyright (C) 1999 Egbert Eich -* -* ======================================================================== -* -* Permission to use, copy, modify, distribute, and sell this software and -* its documentation for any purpose is hereby granted without fee, -* provided that the above copyright notice appear in all copies and that -* both that copyright notice and this permission notice appear in -* supporting documentation, and that the name of the authors not be used -* in advertising or publicity pertaining to distribution of the software -* without specific, written prior permission. The authors makes no -* representations about the suitability of this software for any purpose. -* It is provided "as is" without express or implied warranty. -* -* THE AUTHORS DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, -* INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO -* EVENT SHALL THE AUTHORS BE LIABLE FOR ANY SPECIAL, INDIRECT OR -* CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF -* USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR -* OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR -* PERFORMANCE OF THIS SOFTWARE. -* -* ======================================================================== -* -* Language: ANSI C -* Environment: Any -* Developer: Kendall Bennett -* -* Description: This file includes subroutines to implement the decoding -* and emulation of all the x86 extended two-byte processor -* instructions. -* -****************************************************************************/ - -#include "x86emu/x86emui.h" - -#undef bswap_32 -#define bswap_32(x) (((x & 0xff000000) >> 24) | \ - ((x & 0x00ff0000) >> 8) | \ - ((x & 0x0000ff00) << 8) | \ - ((x & 0x000000ff) << 24)) - -/*----------------------------- Implementation ----------------------------*/ - -/**************************************************************************** -PARAMETERS: -op1 - Instruction op code - -REMARKS: -Handles illegal opcodes. -****************************************************************************/ -static void x86emuOp2_illegal_op( - u8 op2) -{ - START_OF_INSTR(); - DECODE_PRINTF("ILLEGAL EXTENDED X86 OPCODE\n"); - TRACE_REGS(); - printk("%04x:%04x: %02X ILLEGAL EXTENDED X86 OPCODE!\n", - M.x86.R_CS, M.x86.R_IP-2,op2); - HALT_SYS(); - END_OF_INSTR(); -} - -#define xorl(a,b) ((a) && !(b)) || (!(a) && (b)) - -/**************************************************************************** -REMARKS: -Handles opcode 0x0f,0x31 -****************************************************************************/ -static void x86emuOp2_rdtsc(u8 X86EMU_UNUSED(op2)) -{ -#ifdef __HAS_LONG_LONG__ - static u64 counter = 0; -#else - static u32 counter = 0; -#endif - - counter += 0x10000; - - /* read timestamp counter */ - /* - * Note that instead of actually trying to accurately measure this, we just - * increase the counter by a fixed amount every time we hit one of these - * instructions. Feel free to come up with a better method. - */ - START_OF_INSTR(); - DECODE_PRINTF("RDTSC\n"); - TRACE_AND_STEP(); -#ifdef __HAS_LONG_LONG__ - M.x86.R_EAX = counter & 0xffffffff; - M.x86.R_EDX = counter >> 32; -#else - M.x86.R_EAX = counter; - M.x86.R_EDX = 0; -#endif - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0x0f,0x80-0x8F -****************************************************************************/ -static void x86emuOp2_long_jump(u8 op2) -{ - s32 target; - char *name = NULL; - int cond = 0; - - /* conditional jump to word offset. */ - START_OF_INSTR(); - switch (op2) { - case 0x80: - name = "JO\t"; - cond = ACCESS_FLAG(F_OF); - break; - case 0x81: - name = "JNO\t"; - cond = !ACCESS_FLAG(F_OF); - break; - case 0x82: - name = "JB\t"; - cond = ACCESS_FLAG(F_CF); - break; - case 0x83: - name = "JNB\t"; - cond = !ACCESS_FLAG(F_CF); - break; - case 0x84: - name = "JZ\t"; - cond = ACCESS_FLAG(F_ZF); - break; - case 0x85: - name = "JNZ\t"; - cond = !ACCESS_FLAG(F_ZF); - break; - case 0x86: - name = "JBE\t"; - cond = ACCESS_FLAG(F_CF) || ACCESS_FLAG(F_ZF); - break; - case 0x87: - name = "JNBE\t"; - cond = !(ACCESS_FLAG(F_CF) || ACCESS_FLAG(F_ZF)); - break; - case 0x88: - name = "JS\t"; - cond = ACCESS_FLAG(F_SF); - break; - case 0x89: - name = "JNS\t"; - cond = !ACCESS_FLAG(F_SF); - break; - case 0x8a: - name = "JP\t"; - cond = ACCESS_FLAG(F_PF); - break; - case 0x8b: - name = "JNP\t"; - cond = !ACCESS_FLAG(F_PF); - break; - case 0x8c: - name = "JL\t"; - cond = xorl(ACCESS_FLAG(F_SF), ACCESS_FLAG(F_OF)); - break; - case 0x8d: - name = "JNL\t"; - cond = !(xorl(ACCESS_FLAG(F_SF), ACCESS_FLAG(F_OF))); - break; - case 0x8e: - name = "JLE\t"; - cond = (xorl(ACCESS_FLAG(F_SF), ACCESS_FLAG(F_OF)) || - ACCESS_FLAG(F_ZF)); - break; - case 0x8f: - name = "JNLE\t"; - cond = !(xorl(ACCESS_FLAG(F_SF), ACCESS_FLAG(F_OF)) || - ACCESS_FLAG(F_ZF)); - break; - } - DECODE_PRINTF(name); - (void)name; - target = (s16) fetch_word_imm(); - target += (s16) M.x86.R_IP; - DECODE_PRINTF2("%04x\n", target); - TRACE_AND_STEP(); - if (cond) - M.x86.R_IP = (u16)target; - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0x0f,0x90-0x9F -****************************************************************************/ -static void x86emuOp2_set_byte(u8 op2) -{ - int mod, rl, rh; - uint destoffset; - u8 *destreg; - char *name = NULL; - int cond = 0; - - START_OF_INSTR(); - switch (op2) { - case 0x90: - name = "SETO\t"; - cond = ACCESS_FLAG(F_OF); - break; - case 0x91: - name = "SETNO\t"; - cond = !ACCESS_FLAG(F_OF); - break; - case 0x92: - name = "SETB\t"; - cond = ACCESS_FLAG(F_CF); - break; - case 0x93: - name = "SETNB\t"; - cond = !ACCESS_FLAG(F_CF); - break; - case 0x94: - name = "SETZ\t"; - cond = ACCESS_FLAG(F_ZF); - break; - case 0x95: - name = "SETNZ\t"; - cond = !ACCESS_FLAG(F_ZF); - break; - case 0x96: - name = "SETBE\t"; - cond = ACCESS_FLAG(F_CF) || ACCESS_FLAG(F_ZF); - break; - case 0x97: - name = "SETNBE\t"; - cond = !(ACCESS_FLAG(F_CF) || ACCESS_FLAG(F_ZF)); - break; - case 0x98: - name = "SETS\t"; - cond = ACCESS_FLAG(F_SF); - break; - case 0x99: - name = "SETNS\t"; - cond = !ACCESS_FLAG(F_SF); - break; - case 0x9a: - name = "SETP\t"; - cond = ACCESS_FLAG(F_PF); - break; - case 0x9b: - name = "SETNP\t"; - cond = !ACCESS_FLAG(F_PF); - break; - case 0x9c: - name = "SETL\t"; - cond = xorl(ACCESS_FLAG(F_SF), ACCESS_FLAG(F_OF)); - break; - case 0x9d: - name = "SETNL\t"; - cond = xorl(ACCESS_FLAG(F_SF), ACCESS_FLAG(F_OF)); - break; - case 0x9e: - name = "SETLE\t"; - cond = (xorl(ACCESS_FLAG(F_SF), ACCESS_FLAG(F_OF)) || - ACCESS_FLAG(F_ZF)); - break; - case 0x9f: - name = "SETNLE\t"; - cond = !(xorl(ACCESS_FLAG(F_SF), ACCESS_FLAG(F_OF)) || - ACCESS_FLAG(F_ZF)); - break; - } - DECODE_PRINTF(name); - (void)name; - FETCH_DECODE_MODRM(mod, rh, rl); - switch (mod) { - case 0: - destoffset = decode_rm00_address(rl); - TRACE_AND_STEP(); - store_data_byte(destoffset, cond ? 0x01 : 0x00); - break; - case 1: - destoffset = decode_rm01_address(rl); - TRACE_AND_STEP(); - store_data_byte(destoffset, cond ? 0x01 : 0x00); - break; - case 2: - destoffset = decode_rm10_address(rl); - TRACE_AND_STEP(); - store_data_byte(destoffset, cond ? 0x01 : 0x00); - break; - case 3: /* register to register */ - destreg = DECODE_RM_BYTE_REGISTER(rl); - TRACE_AND_STEP(); - *destreg = cond ? 0x01 : 0x00; - break; - } - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0x0f,0xa0 -****************************************************************************/ -static void x86emuOp2_push_FS(u8 X86EMU_UNUSED(op2)) -{ - START_OF_INSTR(); - DECODE_PRINTF("PUSH\tFS\n"); - TRACE_AND_STEP(); - push_word(M.x86.R_FS); - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0x0f,0xa1 -****************************************************************************/ -static void x86emuOp2_pop_FS(u8 X86EMU_UNUSED(op2)) -{ - START_OF_INSTR(); - DECODE_PRINTF("POP\tFS\n"); - TRACE_AND_STEP(); - M.x86.R_FS = pop_word(); - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); -} - -/**************************************************************************** -REMARKS: CPUID takes EAX/ECX as inputs, writes EAX/EBX/ECX/EDX as output -Handles opcode 0x0f,0xa2 -****************************************************************************/ -static void x86emuOp2_cpuid(u8 X86EMU_UNUSED(op2)) -{ - START_OF_INSTR(); - DECODE_PRINTF("CPUID\n"); - TRACE_AND_STEP(); - cpuid(); - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0x0f,0xa3 -****************************************************************************/ -static void x86emuOp2_bt_R(u8 X86EMU_UNUSED(op2)) -{ - int mod, rl, rh; - uint srcoffset; - int bit,disp; - - START_OF_INSTR(); - DECODE_PRINTF("BT\t"); - FETCH_DECODE_MODRM(mod, rh, rl); - switch (mod) { - case 0: - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - u32 srcval; - u32 *shiftreg; - - srcoffset = decode_rm00_address(rl); - DECODE_PRINTF(","); - shiftreg = DECODE_RM_LONG_REGISTER(rh); - TRACE_AND_STEP(); - bit = *shiftreg & 0x1F; - disp = (s16)*shiftreg >> 5; - srcval = fetch_data_long(srcoffset+disp); - CONDITIONAL_SET_FLAG(srcval & (0x1 << bit),F_CF); - } else { - u16 srcval; - u16 *shiftreg; - - srcoffset = decode_rm00_address(rl); - DECODE_PRINTF(","); - shiftreg = DECODE_RM_WORD_REGISTER(rh); - TRACE_AND_STEP(); - bit = *shiftreg & 0xF; - disp = (s16)*shiftreg >> 4; - srcval = fetch_data_word(srcoffset+disp); - CONDITIONAL_SET_FLAG(srcval & (0x1 << bit),F_CF); - } - break; - case 1: - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - u32 srcval; - u32 *shiftreg; - - srcoffset = decode_rm01_address(rl); - DECODE_PRINTF(","); - shiftreg = DECODE_RM_LONG_REGISTER(rh); - TRACE_AND_STEP(); - bit = *shiftreg & 0x1F; - disp = (s16)*shiftreg >> 5; - srcval = fetch_data_long(srcoffset+disp); - CONDITIONAL_SET_FLAG(srcval & (0x1 << bit),F_CF); - } else { - u16 srcval; - u16 *shiftreg; - - srcoffset = decode_rm01_address(rl); - DECODE_PRINTF(","); - shiftreg = DECODE_RM_WORD_REGISTER(rh); - TRACE_AND_STEP(); - bit = *shiftreg & 0xF; - disp = (s16)*shiftreg >> 4; - srcval = fetch_data_word(srcoffset+disp); - CONDITIONAL_SET_FLAG(srcval & (0x1 << bit),F_CF); - } - break; - case 2: - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - u32 srcval; - u32 *shiftreg; - - srcoffset = decode_rm10_address(rl); - DECODE_PRINTF(","); - shiftreg = DECODE_RM_LONG_REGISTER(rh); - TRACE_AND_STEP(); - bit = *shiftreg & 0x1F; - disp = (s16)*shiftreg >> 5; - srcval = fetch_data_long(srcoffset+disp); - CONDITIONAL_SET_FLAG(srcval & (0x1 << bit),F_CF); - } else { - u16 srcval; - u16 *shiftreg; - - srcoffset = decode_rm10_address(rl); - DECODE_PRINTF(","); - shiftreg = DECODE_RM_WORD_REGISTER(rh); - TRACE_AND_STEP(); - bit = *shiftreg & 0xF; - disp = (s16)*shiftreg >> 4; - srcval = fetch_data_word(srcoffset+disp); - CONDITIONAL_SET_FLAG(srcval & (0x1 << bit),F_CF); - } - break; - case 3: /* register to register */ - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - u32 *srcreg,*shiftreg; - - srcreg = DECODE_RM_LONG_REGISTER(rl); - DECODE_PRINTF(","); - shiftreg = DECODE_RM_LONG_REGISTER(rh); - TRACE_AND_STEP(); - bit = *shiftreg & 0x1F; - CONDITIONAL_SET_FLAG(*srcreg & (0x1 << bit),F_CF); - } else { - u16 *srcreg,*shiftreg; - - srcreg = DECODE_RM_WORD_REGISTER(rl); - DECODE_PRINTF(","); - shiftreg = DECODE_RM_WORD_REGISTER(rh); - TRACE_AND_STEP(); - bit = *shiftreg & 0xF; - CONDITIONAL_SET_FLAG(*srcreg & (0x1 << bit),F_CF); - } - break; - } - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0x0f,0xa4 -****************************************************************************/ -static void x86emuOp2_shld_IMM(u8 X86EMU_UNUSED(op2)) -{ - int mod, rl, rh; - uint destoffset; - u8 shift; - - START_OF_INSTR(); - DECODE_PRINTF("SHLD\t"); - FETCH_DECODE_MODRM(mod, rh, rl); - switch (mod) { - case 0: - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - u32 destval; - u32 *shiftreg; - - destoffset = decode_rm00_address(rl); - DECODE_PRINTF(","); - shiftreg = DECODE_RM_LONG_REGISTER(rh); - DECODE_PRINTF(","); - shift = fetch_byte_imm(); - DECODE_PRINTF2("%d\n", shift); - TRACE_AND_STEP(); - destval = fetch_data_long(destoffset); - destval = shld_long(destval,*shiftreg,shift); - store_data_long(destoffset, destval); - } else { - u16 destval; - u16 *shiftreg; - - destoffset = decode_rm00_address(rl); - DECODE_PRINTF(","); - shiftreg = DECODE_RM_WORD_REGISTER(rh); - DECODE_PRINTF(","); - shift = fetch_byte_imm(); - DECODE_PRINTF2("%d\n", shift); - TRACE_AND_STEP(); - destval = fetch_data_word(destoffset); - destval = shld_word(destval,*shiftreg,shift); - store_data_word(destoffset, destval); - } - break; - case 1: - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - u32 destval; - u32 *shiftreg; - - destoffset = decode_rm01_address(rl); - DECODE_PRINTF(","); - shiftreg = DECODE_RM_LONG_REGISTER(rh); - DECODE_PRINTF(","); - shift = fetch_byte_imm(); - DECODE_PRINTF2("%d\n", shift); - TRACE_AND_STEP(); - destval = fetch_data_long(destoffset); - destval = shld_long(destval,*shiftreg,shift); - store_data_long(destoffset, destval); - } else { - u16 destval; - u16 *shiftreg; - - destoffset = decode_rm01_address(rl); - DECODE_PRINTF(","); - shiftreg = DECODE_RM_WORD_REGISTER(rh); - DECODE_PRINTF(","); - shift = fetch_byte_imm(); - DECODE_PRINTF2("%d\n", shift); - TRACE_AND_STEP(); - destval = fetch_data_word(destoffset); - destval = shld_word(destval,*shiftreg,shift); - store_data_word(destoffset, destval); - } - break; - case 2: - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - u32 destval; - u32 *shiftreg; - - destoffset = decode_rm10_address(rl); - DECODE_PRINTF(","); - shiftreg = DECODE_RM_LONG_REGISTER(rh); - DECODE_PRINTF(","); - shift = fetch_byte_imm(); - DECODE_PRINTF2("%d\n", shift); - TRACE_AND_STEP(); - destval = fetch_data_long(destoffset); - destval = shld_long(destval,*shiftreg,shift); - store_data_long(destoffset, destval); - } else { - u16 destval; - u16 *shiftreg; - - destoffset = decode_rm10_address(rl); - DECODE_PRINTF(","); - shiftreg = DECODE_RM_WORD_REGISTER(rh); - DECODE_PRINTF(","); - shift = fetch_byte_imm(); - DECODE_PRINTF2("%d\n", shift); - TRACE_AND_STEP(); - destval = fetch_data_word(destoffset); - destval = shld_word(destval,*shiftreg,shift); - store_data_word(destoffset, destval); - } - break; - case 3: /* register to register */ - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - u32 *destreg,*shiftreg; - - destreg = DECODE_RM_LONG_REGISTER(rl); - DECODE_PRINTF(","); - shiftreg = DECODE_RM_LONG_REGISTER(rh); - DECODE_PRINTF(","); - shift = fetch_byte_imm(); - DECODE_PRINTF2("%d\n", shift); - TRACE_AND_STEP(); - *destreg = shld_long(*destreg,*shiftreg,shift); - } else { - u16 *destreg,*shiftreg; - - destreg = DECODE_RM_WORD_REGISTER(rl); - DECODE_PRINTF(","); - shiftreg = DECODE_RM_WORD_REGISTER(rh); - DECODE_PRINTF(","); - shift = fetch_byte_imm(); - DECODE_PRINTF2("%d\n", shift); - TRACE_AND_STEP(); - *destreg = shld_word(*destreg,*shiftreg,shift); - } - break; - } - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0x0f,0xa5 -****************************************************************************/ -static void x86emuOp2_shld_CL(u8 X86EMU_UNUSED(op2)) -{ - int mod, rl, rh; - uint destoffset; - - START_OF_INSTR(); - DECODE_PRINTF("SHLD\t"); - FETCH_DECODE_MODRM(mod, rh, rl); - switch (mod) { - case 0: - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - u32 destval; - u32 *shiftreg; - - destoffset = decode_rm00_address(rl); - DECODE_PRINTF(","); - shiftreg = DECODE_RM_LONG_REGISTER(rh); - DECODE_PRINTF(",CL\n"); - TRACE_AND_STEP(); - destval = fetch_data_long(destoffset); - destval = shld_long(destval,*shiftreg,M.x86.R_CL); - store_data_long(destoffset, destval); - } else { - u16 destval; - u16 *shiftreg; - - destoffset = decode_rm00_address(rl); - DECODE_PRINTF(","); - shiftreg = DECODE_RM_WORD_REGISTER(rh); - DECODE_PRINTF(",CL\n"); - TRACE_AND_STEP(); - destval = fetch_data_word(destoffset); - destval = shld_word(destval,*shiftreg,M.x86.R_CL); - store_data_word(destoffset, destval); - } - break; - case 1: - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - u32 destval; - u32 *shiftreg; - - destoffset = decode_rm01_address(rl); - DECODE_PRINTF(","); - shiftreg = DECODE_RM_LONG_REGISTER(rh); - DECODE_PRINTF(",CL\n"); - TRACE_AND_STEP(); - destval = fetch_data_long(destoffset); - destval = shld_long(destval,*shiftreg,M.x86.R_CL); - store_data_long(destoffset, destval); - } else { - u16 destval; - u16 *shiftreg; - - destoffset = decode_rm01_address(rl); - DECODE_PRINTF(","); - shiftreg = DECODE_RM_WORD_REGISTER(rh); - DECODE_PRINTF(",CL\n"); - TRACE_AND_STEP(); - destval = fetch_data_word(destoffset); - destval = shld_word(destval,*shiftreg,M.x86.R_CL); - store_data_word(destoffset, destval); - } - break; - case 2: - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - u32 destval; - u32 *shiftreg; - - destoffset = decode_rm10_address(rl); - DECODE_PRINTF(","); - shiftreg = DECODE_RM_LONG_REGISTER(rh); - DECODE_PRINTF(",CL\n"); - TRACE_AND_STEP(); - destval = fetch_data_long(destoffset); - destval = shld_long(destval,*shiftreg,M.x86.R_CL); - store_data_long(destoffset, destval); - } else { - u16 destval; - u16 *shiftreg; - - destoffset = decode_rm10_address(rl); - DECODE_PRINTF(","); - shiftreg = DECODE_RM_WORD_REGISTER(rh); - DECODE_PRINTF(",CL\n"); - TRACE_AND_STEP(); - destval = fetch_data_word(destoffset); - destval = shld_word(destval,*shiftreg,M.x86.R_CL); - store_data_word(destoffset, destval); - } - break; - case 3: /* register to register */ - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - u32 *destreg,*shiftreg; - - destreg = DECODE_RM_LONG_REGISTER(rl); - DECODE_PRINTF(","); - shiftreg = DECODE_RM_LONG_REGISTER(rh); - DECODE_PRINTF(",CL\n"); - TRACE_AND_STEP(); - *destreg = shld_long(*destreg,*shiftreg,M.x86.R_CL); - } else { - u16 *destreg,*shiftreg; - - destreg = DECODE_RM_WORD_REGISTER(rl); - DECODE_PRINTF(","); - shiftreg = DECODE_RM_WORD_REGISTER(rh); - DECODE_PRINTF(",CL\n"); - TRACE_AND_STEP(); - *destreg = shld_word(*destreg,*shiftreg,M.x86.R_CL); - } - break; - } - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0x0f,0xa8 -****************************************************************************/ -static void x86emuOp2_push_GS(u8 X86EMU_UNUSED(op2)) -{ - START_OF_INSTR(); - DECODE_PRINTF("PUSH\tGS\n"); - TRACE_AND_STEP(); - push_word(M.x86.R_GS); - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0x0f,0xa9 -****************************************************************************/ -static void x86emuOp2_pop_GS(u8 X86EMU_UNUSED(op2)) -{ - START_OF_INSTR(); - DECODE_PRINTF("POP\tGS\n"); - TRACE_AND_STEP(); - M.x86.R_GS = pop_word(); - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0x0f,0xab -****************************************************************************/ -static void x86emuOp2_bts_R(u8 X86EMU_UNUSED(op2)) -{ - int mod, rl, rh; - uint srcoffset; - int bit,disp; - - START_OF_INSTR(); - DECODE_PRINTF("BTS\t"); - FETCH_DECODE_MODRM(mod, rh, rl); - switch (mod) { - case 0: - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - u32 srcval,mask; - u32 *shiftreg; - - srcoffset = decode_rm00_address(rl); - DECODE_PRINTF(","); - shiftreg = DECODE_RM_LONG_REGISTER(rh); - TRACE_AND_STEP(); - bit = *shiftreg & 0x1F; - disp = (s16)*shiftreg >> 5; - srcval = fetch_data_long(srcoffset+disp); - mask = (0x1 << bit); - CONDITIONAL_SET_FLAG(srcval & mask,F_CF); - store_data_long(srcoffset+disp, srcval | mask); - } else { - u16 srcval,mask; - u16 *shiftreg; - - srcoffset = decode_rm00_address(rl); - DECODE_PRINTF(","); - shiftreg = DECODE_RM_WORD_REGISTER(rh); - TRACE_AND_STEP(); - bit = *shiftreg & 0xF; - disp = (s16)*shiftreg >> 4; - srcval = fetch_data_word(srcoffset+disp); - mask = (u16)(0x1 << bit); - CONDITIONAL_SET_FLAG(srcval & mask,F_CF); - store_data_word(srcoffset+disp, srcval | mask); - } - break; - case 1: - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - u32 srcval,mask; - u32 *shiftreg; - - srcoffset = decode_rm01_address(rl); - DECODE_PRINTF(","); - shiftreg = DECODE_RM_LONG_REGISTER(rh); - TRACE_AND_STEP(); - bit = *shiftreg & 0x1F; - disp = (s16)*shiftreg >> 5; - srcval = fetch_data_long(srcoffset+disp); - mask = (0x1 << bit); - CONDITIONAL_SET_FLAG(srcval & mask,F_CF); - store_data_long(srcoffset+disp, srcval | mask); - } else { - u16 srcval,mask; - u16 *shiftreg; - - srcoffset = decode_rm01_address(rl); - DECODE_PRINTF(","); - shiftreg = DECODE_RM_WORD_REGISTER(rh); - TRACE_AND_STEP(); - bit = *shiftreg & 0xF; - disp = (s16)*shiftreg >> 4; - srcval = fetch_data_word(srcoffset+disp); - mask = (u16)(0x1 << bit); - CONDITIONAL_SET_FLAG(srcval & mask,F_CF); - store_data_word(srcoffset+disp, srcval | mask); - } - break; - case 2: - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - u32 srcval,mask; - u32 *shiftreg; - - srcoffset = decode_rm10_address(rl); - DECODE_PRINTF(","); - shiftreg = DECODE_RM_LONG_REGISTER(rh); - TRACE_AND_STEP(); - bit = *shiftreg & 0x1F; - disp = (s16)*shiftreg >> 5; - srcval = fetch_data_long(srcoffset+disp); - mask = (0x1 << bit); - CONDITIONAL_SET_FLAG(srcval & mask,F_CF); - store_data_long(srcoffset+disp, srcval | mask); - } else { - u16 srcval,mask; - u16 *shiftreg; - - srcoffset = decode_rm10_address(rl); - DECODE_PRINTF(","); - shiftreg = DECODE_RM_WORD_REGISTER(rh); - TRACE_AND_STEP(); - bit = *shiftreg & 0xF; - disp = (s16)*shiftreg >> 4; - srcval = fetch_data_word(srcoffset+disp); - mask = (u16)(0x1 << bit); - CONDITIONAL_SET_FLAG(srcval & mask,F_CF); - store_data_word(srcoffset+disp, srcval | mask); - } - break; - case 3: /* register to register */ - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - u32 *srcreg,*shiftreg; - u32 mask; - - srcreg = DECODE_RM_LONG_REGISTER(rl); - DECODE_PRINTF(","); - shiftreg = DECODE_RM_LONG_REGISTER(rh); - TRACE_AND_STEP(); - bit = *shiftreg & 0x1F; - mask = (0x1 << bit); - CONDITIONAL_SET_FLAG(*srcreg & mask,F_CF); - *srcreg |= mask; - } else { - u16 *srcreg,*shiftreg; - u16 mask; - - srcreg = DECODE_RM_WORD_REGISTER(rl); - DECODE_PRINTF(","); - shiftreg = DECODE_RM_WORD_REGISTER(rh); - TRACE_AND_STEP(); - bit = *shiftreg & 0xF; - mask = (u16)(0x1 << bit); - CONDITIONAL_SET_FLAG(*srcreg & mask,F_CF); - *srcreg |= mask; - } - break; - } - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0x0f,0xac -****************************************************************************/ -static void x86emuOp2_shrd_IMM(u8 X86EMU_UNUSED(op2)) -{ - int mod, rl, rh; - uint destoffset; - u8 shift; - - START_OF_INSTR(); - DECODE_PRINTF("SHLD\t"); - FETCH_DECODE_MODRM(mod, rh, rl); - switch (mod) { - case 0: - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - u32 destval; - u32 *shiftreg; - - destoffset = decode_rm00_address(rl); - DECODE_PRINTF(","); - shiftreg = DECODE_RM_LONG_REGISTER(rh); - DECODE_PRINTF(","); - shift = fetch_byte_imm(); - DECODE_PRINTF2("%d\n", shift); - TRACE_AND_STEP(); - destval = fetch_data_long(destoffset); - destval = shrd_long(destval,*shiftreg,shift); - store_data_long(destoffset, destval); - } else { - u16 destval; - u16 *shiftreg; - - destoffset = decode_rm00_address(rl); - DECODE_PRINTF(","); - shiftreg = DECODE_RM_WORD_REGISTER(rh); - DECODE_PRINTF(","); - shift = fetch_byte_imm(); - DECODE_PRINTF2("%d\n", shift); - TRACE_AND_STEP(); - destval = fetch_data_word(destoffset); - destval = shrd_word(destval,*shiftreg,shift); - store_data_word(destoffset, destval); - } - break; - case 1: - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - u32 destval; - u32 *shiftreg; - - destoffset = decode_rm01_address(rl); - DECODE_PRINTF(","); - shiftreg = DECODE_RM_LONG_REGISTER(rh); - DECODE_PRINTF(","); - shift = fetch_byte_imm(); - DECODE_PRINTF2("%d\n", shift); - TRACE_AND_STEP(); - destval = fetch_data_long(destoffset); - destval = shrd_long(destval,*shiftreg,shift); - store_data_long(destoffset, destval); - } else { - u16 destval; - u16 *shiftreg; - - destoffset = decode_rm01_address(rl); - DECODE_PRINTF(","); - shiftreg = DECODE_RM_WORD_REGISTER(rh); - DECODE_PRINTF(","); - shift = fetch_byte_imm(); - DECODE_PRINTF2("%d\n", shift); - TRACE_AND_STEP(); - destval = fetch_data_word(destoffset); - destval = shrd_word(destval,*shiftreg,shift); - store_data_word(destoffset, destval); - } - break; - case 2: - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - u32 destval; - u32 *shiftreg; - - destoffset = decode_rm10_address(rl); - DECODE_PRINTF(","); - shiftreg = DECODE_RM_LONG_REGISTER(rh); - DECODE_PRINTF(","); - shift = fetch_byte_imm(); - DECODE_PRINTF2("%d\n", shift); - TRACE_AND_STEP(); - destval = fetch_data_long(destoffset); - destval = shrd_long(destval,*shiftreg,shift); - store_data_long(destoffset, destval); - } else { - u16 destval; - u16 *shiftreg; - - destoffset = decode_rm10_address(rl); - DECODE_PRINTF(","); - shiftreg = DECODE_RM_WORD_REGISTER(rh); - DECODE_PRINTF(","); - shift = fetch_byte_imm(); - DECODE_PRINTF2("%d\n", shift); - TRACE_AND_STEP(); - destval = fetch_data_word(destoffset); - destval = shrd_word(destval,*shiftreg,shift); - store_data_word(destoffset, destval); - } - break; - case 3: /* register to register */ - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - u32 *destreg,*shiftreg; - - destreg = DECODE_RM_LONG_REGISTER(rl); - DECODE_PRINTF(","); - shiftreg = DECODE_RM_LONG_REGISTER(rh); - DECODE_PRINTF(","); - shift = fetch_byte_imm(); - DECODE_PRINTF2("%d\n", shift); - TRACE_AND_STEP(); - *destreg = shrd_long(*destreg,*shiftreg,shift); - } else { - u16 *destreg,*shiftreg; - - destreg = DECODE_RM_WORD_REGISTER(rl); - DECODE_PRINTF(","); - shiftreg = DECODE_RM_WORD_REGISTER(rh); - DECODE_PRINTF(","); - shift = fetch_byte_imm(); - DECODE_PRINTF2("%d\n", shift); - TRACE_AND_STEP(); - *destreg = shrd_word(*destreg,*shiftreg,shift); - } - break; - } - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0x0f,0xad -****************************************************************************/ -static void x86emuOp2_shrd_CL(u8 X86EMU_UNUSED(op2)) -{ - int mod, rl, rh; - uint destoffset; - - START_OF_INSTR(); - DECODE_PRINTF("SHLD\t"); - FETCH_DECODE_MODRM(mod, rh, rl); - switch (mod) { - case 0: - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - u32 destval; - u32 *shiftreg; - - destoffset = decode_rm00_address(rl); - DECODE_PRINTF(","); - shiftreg = DECODE_RM_LONG_REGISTER(rh); - DECODE_PRINTF(",CL\n"); - TRACE_AND_STEP(); - destval = fetch_data_long(destoffset); - destval = shrd_long(destval,*shiftreg,M.x86.R_CL); - store_data_long(destoffset, destval); - } else { - u16 destval; - u16 *shiftreg; - - destoffset = decode_rm00_address(rl); - DECODE_PRINTF(","); - shiftreg = DECODE_RM_WORD_REGISTER(rh); - DECODE_PRINTF(",CL\n"); - TRACE_AND_STEP(); - destval = fetch_data_word(destoffset); - destval = shrd_word(destval,*shiftreg,M.x86.R_CL); - store_data_word(destoffset, destval); - } - break; - case 1: - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - u32 destval; - u32 *shiftreg; - - destoffset = decode_rm01_address(rl); - DECODE_PRINTF(","); - shiftreg = DECODE_RM_LONG_REGISTER(rh); - DECODE_PRINTF(",CL\n"); - TRACE_AND_STEP(); - destval = fetch_data_long(destoffset); - destval = shrd_long(destval,*shiftreg,M.x86.R_CL); - store_data_long(destoffset, destval); - } else { - u16 destval; - u16 *shiftreg; - - destoffset = decode_rm01_address(rl); - DECODE_PRINTF(","); - shiftreg = DECODE_RM_WORD_REGISTER(rh); - DECODE_PRINTF(",CL\n"); - TRACE_AND_STEP(); - destval = fetch_data_word(destoffset); - destval = shrd_word(destval,*shiftreg,M.x86.R_CL); - store_data_word(destoffset, destval); - } - break; - case 2: - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - u32 destval; - u32 *shiftreg; - - destoffset = decode_rm10_address(rl); - DECODE_PRINTF(","); - shiftreg = DECODE_RM_LONG_REGISTER(rh); - DECODE_PRINTF(",CL\n"); - TRACE_AND_STEP(); - destval = fetch_data_long(destoffset); - destval = shrd_long(destval,*shiftreg,M.x86.R_CL); - store_data_long(destoffset, destval); - } else { - u16 destval; - u16 *shiftreg; - - destoffset = decode_rm10_address(rl); - DECODE_PRINTF(","); - shiftreg = DECODE_RM_WORD_REGISTER(rh); - DECODE_PRINTF(",CL\n"); - TRACE_AND_STEP(); - destval = fetch_data_word(destoffset); - destval = shrd_word(destval,*shiftreg,M.x86.R_CL); - store_data_word(destoffset, destval); - } - break; - case 3: /* register to register */ - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - u32 *destreg,*shiftreg; - - destreg = DECODE_RM_LONG_REGISTER(rl); - DECODE_PRINTF(","); - shiftreg = DECODE_RM_LONG_REGISTER(rh); - DECODE_PRINTF(",CL\n"); - TRACE_AND_STEP(); - *destreg = shrd_long(*destreg,*shiftreg,M.x86.R_CL); - } else { - u16 *destreg,*shiftreg; - - destreg = DECODE_RM_WORD_REGISTER(rl); - DECODE_PRINTF(","); - shiftreg = DECODE_RM_WORD_REGISTER(rh); - DECODE_PRINTF(",CL\n"); - TRACE_AND_STEP(); - *destreg = shrd_word(*destreg,*shiftreg,M.x86.R_CL); - } - break; - } - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0x0f,0xaf -****************************************************************************/ -static void x86emuOp2_imul_R_RM(u8 X86EMU_UNUSED(op2)) -{ - int mod, rl, rh; - uint srcoffset; - - START_OF_INSTR(); - DECODE_PRINTF("IMUL\t"); - FETCH_DECODE_MODRM(mod, rh, rl); - switch (mod) { - case 0: - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - u32 *destreg; - u32 srcval; - u32 res_lo,res_hi; - - destreg = DECODE_RM_LONG_REGISTER(rh); - DECODE_PRINTF(","); - srcoffset = decode_rm00_address(rl); - srcval = fetch_data_long(srcoffset); - TRACE_AND_STEP(); - imul_long_direct(&res_lo,&res_hi,(s32)*destreg,(s32)srcval); - if (res_hi != 0) { - SET_FLAG(F_CF); - SET_FLAG(F_OF); - } else { - CLEAR_FLAG(F_CF); - CLEAR_FLAG(F_OF); - } - *destreg = (u32)res_lo; - } else { - u16 *destreg; - u16 srcval; - u32 res; - - destreg = DECODE_RM_WORD_REGISTER(rh); - DECODE_PRINTF(","); - srcoffset = decode_rm00_address(rl); - srcval = fetch_data_word(srcoffset); - TRACE_AND_STEP(); - res = (s16)*destreg * (s16)srcval; - if (res > 0xFFFF) { - SET_FLAG(F_CF); - SET_FLAG(F_OF); - } else { - CLEAR_FLAG(F_CF); - CLEAR_FLAG(F_OF); - } - *destreg = (u16)res; - } - break; - case 1: - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - u32 *destreg; - u32 srcval; - u32 res_lo,res_hi; - - destreg = DECODE_RM_LONG_REGISTER(rh); - DECODE_PRINTF(","); - srcoffset = decode_rm01_address(rl); - srcval = fetch_data_long(srcoffset); - TRACE_AND_STEP(); - imul_long_direct(&res_lo,&res_hi,(s32)*destreg,(s32)srcval); - if (res_hi != 0) { - SET_FLAG(F_CF); - SET_FLAG(F_OF); - } else { - CLEAR_FLAG(F_CF); - CLEAR_FLAG(F_OF); - } - *destreg = (u32)res_lo; - } else { - u16 *destreg; - u16 srcval; - u32 res; - - destreg = DECODE_RM_WORD_REGISTER(rh); - DECODE_PRINTF(","); - srcoffset = decode_rm01_address(rl); - srcval = fetch_data_word(srcoffset); - TRACE_AND_STEP(); - res = (s16)*destreg * (s16)srcval; - if (res > 0xFFFF) { - SET_FLAG(F_CF); - SET_FLAG(F_OF); - } else { - CLEAR_FLAG(F_CF); - CLEAR_FLAG(F_OF); - } - *destreg = (u16)res; - } - break; - case 2: - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - u32 *destreg; - u32 srcval; - u32 res_lo,res_hi; - - destreg = DECODE_RM_LONG_REGISTER(rh); - DECODE_PRINTF(","); - srcoffset = decode_rm10_address(rl); - srcval = fetch_data_long(srcoffset); - TRACE_AND_STEP(); - imul_long_direct(&res_lo,&res_hi,(s32)*destreg,(s32)srcval); - if (res_hi != 0) { - SET_FLAG(F_CF); - SET_FLAG(F_OF); - } else { - CLEAR_FLAG(F_CF); - CLEAR_FLAG(F_OF); - } - *destreg = (u32)res_lo; - } else { - u16 *destreg; - u16 srcval; - u32 res; - - destreg = DECODE_RM_WORD_REGISTER(rh); - DECODE_PRINTF(","); - srcoffset = decode_rm10_address(rl); - srcval = fetch_data_word(srcoffset); - TRACE_AND_STEP(); - res = (s16)*destreg * (s16)srcval; - if (res > 0xFFFF) { - SET_FLAG(F_CF); - SET_FLAG(F_OF); - } else { - CLEAR_FLAG(F_CF); - CLEAR_FLAG(F_OF); - } - *destreg = (u16)res; - } - break; - case 3: /* register to register */ - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - u32 *destreg,*srcreg; - u32 res_lo,res_hi; - - destreg = DECODE_RM_LONG_REGISTER(rh); - DECODE_PRINTF(","); - srcreg = DECODE_RM_LONG_REGISTER(rl); - TRACE_AND_STEP(); - imul_long_direct(&res_lo,&res_hi,(s32)*destreg,(s32)*srcreg); - if (res_hi != 0) { - SET_FLAG(F_CF); - SET_FLAG(F_OF); - } else { - CLEAR_FLAG(F_CF); - CLEAR_FLAG(F_OF); - } - *destreg = (u32)res_lo; - } else { - u16 *destreg,*srcreg; - u32 res; - - destreg = DECODE_RM_WORD_REGISTER(rh); - DECODE_PRINTF(","); - srcreg = DECODE_RM_WORD_REGISTER(rl); - res = (s16)*destreg * (s16)*srcreg; - if (res > 0xFFFF) { - SET_FLAG(F_CF); - SET_FLAG(F_OF); - } else { - CLEAR_FLAG(F_CF); - CLEAR_FLAG(F_OF); - } - *destreg = (u16)res; - } - break; - } - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0x0f,0xb2 -****************************************************************************/ -static void x86emuOp2_lss_R_IMM(u8 X86EMU_UNUSED(op2)) -{ - int mod, rh, rl; - u16 *dstreg; - uint srcoffset; - - START_OF_INSTR(); - DECODE_PRINTF("LSS\t"); - FETCH_DECODE_MODRM(mod, rh, rl); - switch (mod) { - case 0: - dstreg = DECODE_RM_WORD_REGISTER(rh); - DECODE_PRINTF(","); - srcoffset = decode_rm00_address(rl); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - *dstreg = fetch_data_word(srcoffset); - M.x86.R_SS = fetch_data_word(srcoffset + 2); - break; - case 1: - dstreg = DECODE_RM_WORD_REGISTER(rh); - DECODE_PRINTF(","); - srcoffset = decode_rm01_address(rl); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - *dstreg = fetch_data_word(srcoffset); - M.x86.R_SS = fetch_data_word(srcoffset + 2); - break; - case 2: - dstreg = DECODE_RM_WORD_REGISTER(rh); - DECODE_PRINTF(","); - srcoffset = decode_rm10_address(rl); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - *dstreg = fetch_data_word(srcoffset); - M.x86.R_SS = fetch_data_word(srcoffset + 2); - break; - case 3: /* register to register */ - /* UNDEFINED! */ - TRACE_AND_STEP(); - } - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0x0f,0xb3 -****************************************************************************/ -static void x86emuOp2_btr_R(u8 X86EMU_UNUSED(op2)) -{ - int mod, rl, rh; - uint srcoffset; - int bit,disp; - - START_OF_INSTR(); - DECODE_PRINTF("BTR\t"); - FETCH_DECODE_MODRM(mod, rh, rl); - switch (mod) { - case 0: - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - u32 srcval,mask; - u32 *shiftreg; - - srcoffset = decode_rm00_address(rl); - DECODE_PRINTF(","); - shiftreg = DECODE_RM_LONG_REGISTER(rh); - TRACE_AND_STEP(); - bit = *shiftreg & 0x1F; - disp = (s16)*shiftreg >> 5; - srcval = fetch_data_long(srcoffset+disp); - mask = (0x1 << bit); - CONDITIONAL_SET_FLAG(srcval & mask,F_CF); - store_data_long(srcoffset+disp, srcval & ~mask); - } else { - u16 srcval,mask; - u16 *shiftreg; - - srcoffset = decode_rm00_address(rl); - DECODE_PRINTF(","); - shiftreg = DECODE_RM_WORD_REGISTER(rh); - TRACE_AND_STEP(); - bit = *shiftreg & 0xF; - disp = (s16)*shiftreg >> 4; - srcval = fetch_data_word(srcoffset+disp); - mask = (u16)(0x1 << bit); - CONDITIONAL_SET_FLAG(srcval & mask,F_CF); - store_data_word(srcoffset+disp, (u16)(srcval & ~mask)); - } - break; - case 1: - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - u32 srcval,mask; - u32 *shiftreg; - - srcoffset = decode_rm01_address(rl); - DECODE_PRINTF(","); - shiftreg = DECODE_RM_LONG_REGISTER(rh); - TRACE_AND_STEP(); - bit = *shiftreg & 0x1F; - disp = (s16)*shiftreg >> 5; - srcval = fetch_data_long(srcoffset+disp); - mask = (0x1 << bit); - CONDITIONAL_SET_FLAG(srcval & mask,F_CF); - store_data_long(srcoffset+disp, srcval & ~mask); - } else { - u16 srcval,mask; - u16 *shiftreg; - - srcoffset = decode_rm01_address(rl); - DECODE_PRINTF(","); - shiftreg = DECODE_RM_WORD_REGISTER(rh); - TRACE_AND_STEP(); - bit = *shiftreg & 0xF; - disp = (s16)*shiftreg >> 4; - srcval = fetch_data_word(srcoffset+disp); - mask = (u16)(0x1 << bit); - CONDITIONAL_SET_FLAG(srcval & mask,F_CF); - store_data_word(srcoffset+disp, (u16)(srcval & ~mask)); - } - break; - case 2: - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - u32 srcval,mask; - u32 *shiftreg; - - srcoffset = decode_rm10_address(rl); - DECODE_PRINTF(","); - shiftreg = DECODE_RM_LONG_REGISTER(rh); - TRACE_AND_STEP(); - bit = *shiftreg & 0x1F; - disp = (s16)*shiftreg >> 5; - srcval = fetch_data_long(srcoffset+disp); - mask = (0x1 << bit); - CONDITIONAL_SET_FLAG(srcval & mask,F_CF); - store_data_long(srcoffset+disp, srcval & ~mask); - } else { - u16 srcval,mask; - u16 *shiftreg; - - srcoffset = decode_rm10_address(rl); - DECODE_PRINTF(","); - shiftreg = DECODE_RM_WORD_REGISTER(rh); - TRACE_AND_STEP(); - bit = *shiftreg & 0xF; - disp = (s16)*shiftreg >> 4; - srcval = fetch_data_word(srcoffset+disp); - mask = (u16)(0x1 << bit); - CONDITIONAL_SET_FLAG(srcval & mask,F_CF); - store_data_word(srcoffset+disp, (u16)(srcval & ~mask)); - } - break; - case 3: /* register to register */ - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - u32 *srcreg,*shiftreg; - u32 mask; - - srcreg = DECODE_RM_LONG_REGISTER(rl); - DECODE_PRINTF(","); - shiftreg = DECODE_RM_LONG_REGISTER(rh); - TRACE_AND_STEP(); - bit = *shiftreg & 0x1F; - mask = (0x1 << bit); - CONDITIONAL_SET_FLAG(*srcreg & mask,F_CF); - *srcreg &= ~mask; - } else { - u16 *srcreg,*shiftreg; - u16 mask; - - srcreg = DECODE_RM_WORD_REGISTER(rl); - DECODE_PRINTF(","); - shiftreg = DECODE_RM_WORD_REGISTER(rh); - TRACE_AND_STEP(); - bit = *shiftreg & 0xF; - mask = (u16)(0x1 << bit); - CONDITIONAL_SET_FLAG(*srcreg & mask,F_CF); - *srcreg &= ~mask; - } - break; - } - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0x0f,0xb4 -****************************************************************************/ -static void x86emuOp2_lfs_R_IMM(u8 X86EMU_UNUSED(op2)) -{ - int mod, rh, rl; - u16 *dstreg; - uint srcoffset; - - START_OF_INSTR(); - DECODE_PRINTF("LFS\t"); - FETCH_DECODE_MODRM(mod, rh, rl); - switch (mod) { - case 0: - dstreg = DECODE_RM_WORD_REGISTER(rh); - DECODE_PRINTF(","); - srcoffset = decode_rm00_address(rl); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - *dstreg = fetch_data_word(srcoffset); - M.x86.R_FS = fetch_data_word(srcoffset + 2); - break; - case 1: - dstreg = DECODE_RM_WORD_REGISTER(rh); - DECODE_PRINTF(","); - srcoffset = decode_rm01_address(rl); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - *dstreg = fetch_data_word(srcoffset); - M.x86.R_FS = fetch_data_word(srcoffset + 2); - break; - case 2: - dstreg = DECODE_RM_WORD_REGISTER(rh); - DECODE_PRINTF(","); - srcoffset = decode_rm10_address(rl); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - *dstreg = fetch_data_word(srcoffset); - M.x86.R_FS = fetch_data_word(srcoffset + 2); - break; - case 3: /* register to register */ - /* UNDEFINED! */ - TRACE_AND_STEP(); - } - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0x0f,0xb5 -****************************************************************************/ -static void x86emuOp2_lgs_R_IMM(u8 X86EMU_UNUSED(op2)) -{ - int mod, rh, rl; - u16 *dstreg; - uint srcoffset; - - START_OF_INSTR(); - DECODE_PRINTF("LGS\t"); - FETCH_DECODE_MODRM(mod, rh, rl); - switch (mod) { - case 0: - dstreg = DECODE_RM_WORD_REGISTER(rh); - DECODE_PRINTF(","); - srcoffset = decode_rm00_address(rl); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - *dstreg = fetch_data_word(srcoffset); - M.x86.R_GS = fetch_data_word(srcoffset + 2); - break; - case 1: - dstreg = DECODE_RM_WORD_REGISTER(rh); - DECODE_PRINTF(","); - srcoffset = decode_rm01_address(rl); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - *dstreg = fetch_data_word(srcoffset); - M.x86.R_GS = fetch_data_word(srcoffset + 2); - break; - case 2: - dstreg = DECODE_RM_WORD_REGISTER(rh); - DECODE_PRINTF(","); - srcoffset = decode_rm10_address(rl); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - *dstreg = fetch_data_word(srcoffset); - M.x86.R_GS = fetch_data_word(srcoffset + 2); - break; - case 3: /* register to register */ - /* UNDEFINED! */ - TRACE_AND_STEP(); - } - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0x0f,0xb6 -****************************************************************************/ -static void x86emuOp2_movzx_byte_R_RM(u8 X86EMU_UNUSED(op2)) -{ - int mod, rl, rh; - uint srcoffset; - - START_OF_INSTR(); - DECODE_PRINTF("MOVZX\t"); - FETCH_DECODE_MODRM(mod, rh, rl); - switch (mod) { - case 0: - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - u32 *destreg; - u32 srcval; - - destreg = DECODE_RM_LONG_REGISTER(rh); - DECODE_PRINTF(","); - srcoffset = decode_rm00_address(rl); - srcval = fetch_data_byte(srcoffset); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - *destreg = srcval; - } else { - u16 *destreg; - u16 srcval; - - destreg = DECODE_RM_WORD_REGISTER(rh); - DECODE_PRINTF(","); - srcoffset = decode_rm00_address(rl); - srcval = fetch_data_byte(srcoffset); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - *destreg = srcval; - } - break; - case 1: - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - u32 *destreg; - u32 srcval; - - destreg = DECODE_RM_LONG_REGISTER(rh); - DECODE_PRINTF(","); - srcoffset = decode_rm01_address(rl); - srcval = fetch_data_byte(srcoffset); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - *destreg = srcval; - } else { - u16 *destreg; - u16 srcval; - - destreg = DECODE_RM_WORD_REGISTER(rh); - DECODE_PRINTF(","); - srcoffset = decode_rm01_address(rl); - srcval = fetch_data_byte(srcoffset); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - *destreg = srcval; - } - break; - case 2: - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - u32 *destreg; - u32 srcval; - - destreg = DECODE_RM_LONG_REGISTER(rh); - DECODE_PRINTF(","); - srcoffset = decode_rm10_address(rl); - srcval = fetch_data_byte(srcoffset); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - *destreg = srcval; - } else { - u16 *destreg; - u16 srcval; - - destreg = DECODE_RM_WORD_REGISTER(rh); - DECODE_PRINTF(","); - srcoffset = decode_rm10_address(rl); - srcval = fetch_data_byte(srcoffset); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - *destreg = srcval; - } - break; - case 3: /* register to register */ - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - u32 *destreg; - u8 *srcreg; - - destreg = DECODE_RM_LONG_REGISTER(rh); - DECODE_PRINTF(","); - srcreg = DECODE_RM_BYTE_REGISTER(rl); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - *destreg = *srcreg; - } else { - u16 *destreg; - u8 *srcreg; - - destreg = DECODE_RM_WORD_REGISTER(rh); - DECODE_PRINTF(","); - srcreg = DECODE_RM_BYTE_REGISTER(rl); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - *destreg = *srcreg; - } - break; - } - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0x0f,0xb7 -****************************************************************************/ -static void x86emuOp2_movzx_word_R_RM(u8 X86EMU_UNUSED(op2)) -{ - int mod, rl, rh; - uint srcoffset; - u32 *destreg; - u32 srcval; - u16 *srcreg; - - START_OF_INSTR(); - DECODE_PRINTF("MOVZX\t"); - FETCH_DECODE_MODRM(mod, rh, rl); - switch (mod) { - case 0: - destreg = DECODE_RM_LONG_REGISTER(rh); - DECODE_PRINTF(","); - srcoffset = decode_rm00_address(rl); - srcval = fetch_data_word(srcoffset); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - *destreg = srcval; - break; - case 1: - destreg = DECODE_RM_LONG_REGISTER(rh); - DECODE_PRINTF(","); - srcoffset = decode_rm01_address(rl); - srcval = fetch_data_word(srcoffset); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - *destreg = srcval; - break; - case 2: - destreg = DECODE_RM_LONG_REGISTER(rh); - DECODE_PRINTF(","); - srcoffset = decode_rm10_address(rl); - srcval = fetch_data_word(srcoffset); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - *destreg = srcval; - break; - case 3: /* register to register */ - destreg = DECODE_RM_LONG_REGISTER(rh); - DECODE_PRINTF(","); - srcreg = DECODE_RM_WORD_REGISTER(rl); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - *destreg = *srcreg; - break; - } - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0x0f,0xba -****************************************************************************/ -static void x86emuOp2_btX_I(u8 X86EMU_UNUSED(op2)) -{ - int mod, rl, rh; - uint srcoffset; - int bit; - - START_OF_INSTR(); - FETCH_DECODE_MODRM(mod, rh, rl); - switch (rh) { - case 4: - DECODE_PRINTF("BT\t"); - break; - case 5: - DECODE_PRINTF("BTS\t"); - break; - case 6: - DECODE_PRINTF("BTR\t"); - break; - case 7: - DECODE_PRINTF("BTC\t"); - break; - default: - DECODE_PRINTF("ILLEGAL EXTENDED X86 OPCODE\n"); - TRACE_REGS(); - printk("%04x:%04x: %02X%02X ILLEGAL EXTENDED X86 OPCODE EXTENSION!\n", - M.x86.R_CS, M.x86.R_IP-3,op2, (mod<<6)|(rh<<3)|rl); - HALT_SYS(); - } - switch (mod) { - case 0: - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - u32 srcval, mask; - u8 shift; - - srcoffset = decode_rm00_address(rl); - DECODE_PRINTF(","); - shift = fetch_byte_imm(); - TRACE_AND_STEP(); - bit = shift & 0x1F; - srcval = fetch_data_long(srcoffset); - mask = (0x1 << bit); - CONDITIONAL_SET_FLAG(srcval & mask,F_CF); - switch (rh) { - case 5: - store_data_long(srcoffset, srcval | mask); - break; - case 6: - store_data_long(srcoffset, srcval & ~mask); - break; - case 7: - store_data_long(srcoffset, srcval ^ mask); - break; - default: - break; - } - } else { - u16 srcval, mask; - u8 shift; - - srcoffset = decode_rm00_address(rl); - DECODE_PRINTF(","); - shift = fetch_byte_imm(); - TRACE_AND_STEP(); - bit = shift & 0xF; - srcval = fetch_data_word(srcoffset); - mask = (0x1 << bit); - CONDITIONAL_SET_FLAG(srcval & mask,F_CF); - switch (rh) { - case 5: - store_data_word(srcoffset, srcval | mask); - break; - case 6: - store_data_word(srcoffset, srcval & ~mask); - break; - case 7: - store_data_word(srcoffset, srcval ^ mask); - break; - default: - break; - } - } - break; - case 1: - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - u32 srcval, mask; - u8 shift; - - srcoffset = decode_rm01_address(rl); - DECODE_PRINTF(","); - shift = fetch_byte_imm(); - TRACE_AND_STEP(); - bit = shift & 0x1F; - srcval = fetch_data_long(srcoffset); - mask = (0x1 << bit); - CONDITIONAL_SET_FLAG(srcval & mask,F_CF); - switch (rh) { - case 5: - store_data_long(srcoffset, srcval | mask); - break; - case 6: - store_data_long(srcoffset, srcval & ~mask); - break; - case 7: - store_data_long(srcoffset, srcval ^ mask); - break; - default: - break; - } - } else { - u16 srcval, mask; - u8 shift; - - srcoffset = decode_rm01_address(rl); - DECODE_PRINTF(","); - shift = fetch_byte_imm(); - TRACE_AND_STEP(); - bit = shift & 0xF; - srcval = fetch_data_word(srcoffset); - mask = (0x1 << bit); - CONDITIONAL_SET_FLAG(srcval & mask,F_CF); - switch (rh) { - case 5: - store_data_word(srcoffset, srcval | mask); - break; - case 6: - store_data_word(srcoffset, srcval & ~mask); - break; - case 7: - store_data_word(srcoffset, srcval ^ mask); - break; - default: - break; - } - } - break; - case 2: - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - u32 srcval, mask; - u8 shift; - - srcoffset = decode_rm10_address(rl); - DECODE_PRINTF(","); - shift = fetch_byte_imm(); - TRACE_AND_STEP(); - bit = shift & 0x1F; - srcval = fetch_data_long(srcoffset); - mask = (0x1 << bit); - CONDITIONAL_SET_FLAG(srcval & mask,F_CF); - switch (rh) { - case 5: - store_data_long(srcoffset, srcval | mask); - break; - case 6: - store_data_long(srcoffset, srcval & ~mask); - break; - case 7: - store_data_long(srcoffset, srcval ^ mask); - break; - default: - break; - } - } else { - u16 srcval, mask; - u8 shift; - - srcoffset = decode_rm10_address(rl); - DECODE_PRINTF(","); - shift = fetch_byte_imm(); - TRACE_AND_STEP(); - bit = shift & 0xF; - srcval = fetch_data_word(srcoffset); - mask = (0x1 << bit); - CONDITIONAL_SET_FLAG(srcval & mask,F_CF); - switch (rh) { - case 5: - store_data_word(srcoffset, srcval | mask); - break; - case 6: - store_data_word(srcoffset, srcval & ~mask); - break; - case 7: - store_data_word(srcoffset, srcval ^ mask); - break; - default: - break; - } - } - break; - case 3: /* register to register */ - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - u32 *srcreg; - u32 mask; - u8 shift; - - srcreg = DECODE_RM_LONG_REGISTER(rl); - DECODE_PRINTF(","); - shift = fetch_byte_imm(); - TRACE_AND_STEP(); - bit = shift & 0x1F; - mask = (0x1 << bit); - CONDITIONAL_SET_FLAG(*srcreg & mask,F_CF); - switch (rh) { - case 5: - *srcreg |= mask; - break; - case 6: - *srcreg &= ~mask; - break; - case 7: - *srcreg ^= mask; - break; - default: - break; - } - } else { - u16 *srcreg; - u16 mask; - u8 shift; - - srcreg = DECODE_RM_WORD_REGISTER(rl); - DECODE_PRINTF(","); - shift = fetch_byte_imm(); - TRACE_AND_STEP(); - bit = shift & 0xF; - mask = (0x1 << bit); - CONDITIONAL_SET_FLAG(*srcreg & mask,F_CF); - switch (rh) { - case 5: - *srcreg |= mask; - break; - case 6: - *srcreg &= ~mask; - break; - case 7: - *srcreg ^= mask; - break; - default: - break; - } - } - break; - } - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0x0f,0xbb -****************************************************************************/ -static void x86emuOp2_btc_R(u8 X86EMU_UNUSED(op2)) -{ - int mod, rl, rh; - uint srcoffset; - int bit,disp; - - START_OF_INSTR(); - DECODE_PRINTF("BTC\t"); - FETCH_DECODE_MODRM(mod, rh, rl); - switch (mod) { - case 0: - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - u32 srcval,mask; - u32 *shiftreg; - - srcoffset = decode_rm00_address(rl); - DECODE_PRINTF(","); - shiftreg = DECODE_RM_LONG_REGISTER(rh); - TRACE_AND_STEP(); - bit = *shiftreg & 0x1F; - disp = (s16)*shiftreg >> 5; - srcval = fetch_data_long(srcoffset+disp); - mask = (0x1 << bit); - CONDITIONAL_SET_FLAG(srcval & mask,F_CF); - store_data_long(srcoffset+disp, srcval ^ mask); - } else { - u16 srcval,mask; - u16 *shiftreg; - - srcoffset = decode_rm00_address(rl); - DECODE_PRINTF(","); - shiftreg = DECODE_RM_WORD_REGISTER(rh); - TRACE_AND_STEP(); - bit = *shiftreg & 0xF; - disp = (s16)*shiftreg >> 4; - srcval = fetch_data_word(srcoffset+disp); - mask = (u16)(0x1 << bit); - CONDITIONAL_SET_FLAG(srcval & mask,F_CF); - store_data_word(srcoffset+disp, (u16)(srcval ^ mask)); - } - break; - case 1: - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - u32 srcval,mask; - u32 *shiftreg; - - srcoffset = decode_rm01_address(rl); - DECODE_PRINTF(","); - shiftreg = DECODE_RM_LONG_REGISTER(rh); - TRACE_AND_STEP(); - bit = *shiftreg & 0x1F; - disp = (s16)*shiftreg >> 5; - srcval = fetch_data_long(srcoffset+disp); - mask = (0x1 << bit); - CONDITIONAL_SET_FLAG(srcval & mask,F_CF); - store_data_long(srcoffset+disp, srcval ^ mask); - } else { - u16 srcval,mask; - u16 *shiftreg; - - srcoffset = decode_rm01_address(rl); - DECODE_PRINTF(","); - shiftreg = DECODE_RM_WORD_REGISTER(rh); - TRACE_AND_STEP(); - bit = *shiftreg & 0xF; - disp = (s16)*shiftreg >> 4; - srcval = fetch_data_word(srcoffset+disp); - mask = (u16)(0x1 << bit); - CONDITIONAL_SET_FLAG(srcval & mask,F_CF); - store_data_word(srcoffset+disp, (u16)(srcval ^ mask)); - } - break; - case 2: - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - u32 srcval,mask; - u32 *shiftreg; - - srcoffset = decode_rm10_address(rl); - DECODE_PRINTF(","); - shiftreg = DECODE_RM_LONG_REGISTER(rh); - TRACE_AND_STEP(); - bit = *shiftreg & 0x1F; - disp = (s16)*shiftreg >> 5; - srcval = fetch_data_long(srcoffset+disp); - mask = (0x1 << bit); - CONDITIONAL_SET_FLAG(srcval & mask,F_CF); - store_data_long(srcoffset+disp, srcval ^ mask); - } else { - u16 srcval,mask; - u16 *shiftreg; - - srcoffset = decode_rm10_address(rl); - DECODE_PRINTF(","); - shiftreg = DECODE_RM_WORD_REGISTER(rh); - TRACE_AND_STEP(); - bit = *shiftreg & 0xF; - disp = (s16)*shiftreg >> 4; - srcval = fetch_data_word(srcoffset+disp); - mask = (u16)(0x1 << bit); - CONDITIONAL_SET_FLAG(srcval & mask,F_CF); - store_data_word(srcoffset+disp, (u16)(srcval ^ mask)); - } - break; - case 3: /* register to register */ - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - u32 *srcreg,*shiftreg; - u32 mask; - - srcreg = DECODE_RM_LONG_REGISTER(rl); - DECODE_PRINTF(","); - shiftreg = DECODE_RM_LONG_REGISTER(rh); - TRACE_AND_STEP(); - bit = *shiftreg & 0x1F; - mask = (0x1 << bit); - CONDITIONAL_SET_FLAG(*srcreg & mask,F_CF); - *srcreg ^= mask; - } else { - u16 *srcreg,*shiftreg; - u16 mask; - - srcreg = DECODE_RM_WORD_REGISTER(rl); - DECODE_PRINTF(","); - shiftreg = DECODE_RM_WORD_REGISTER(rh); - TRACE_AND_STEP(); - bit = *shiftreg & 0xF; - mask = (u16)(0x1 << bit); - CONDITIONAL_SET_FLAG(*srcreg & mask,F_CF); - *srcreg ^= mask; - } - break; - } - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0x0f,0xbc -****************************************************************************/ -static void x86emuOp2_bsf(u8 X86EMU_UNUSED(op2)) -{ - int mod, rl, rh; - uint srcoffset; - - START_OF_INSTR(); - DECODE_PRINTF("BSF\t"); - FETCH_DECODE_MODRM(mod, rh, rl); - switch(mod) { - case 0: - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - u32 srcval, *dstreg; - - srcoffset = decode_rm00_address(rl); - DECODE_PRINTF(","); - dstreg = DECODE_RM_LONG_REGISTER(rh); - TRACE_AND_STEP(); - srcval = fetch_data_long(srcoffset); - CONDITIONAL_SET_FLAG(srcval == 0, F_ZF); - for(*dstreg = 0; *dstreg < 32; (*dstreg)++) - if ((srcval >> *dstreg) & 1) break; - } else { - u16 srcval, *dstreg; - - srcoffset = decode_rm00_address(rl); - DECODE_PRINTF(","); - dstreg = DECODE_RM_WORD_REGISTER(rh); - TRACE_AND_STEP(); - srcval = fetch_data_word(srcoffset); - CONDITIONAL_SET_FLAG(srcval == 0, F_ZF); - for(*dstreg = 0; *dstreg < 16; (*dstreg)++) - if ((srcval >> *dstreg) & 1) break; - } - break; - case 1: - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - u32 srcval, *dstreg; - - srcoffset = decode_rm01_address(rl); - DECODE_PRINTF(","); - dstreg = DECODE_RM_LONG_REGISTER(rh); - TRACE_AND_STEP(); - srcval = fetch_data_long(srcoffset); - CONDITIONAL_SET_FLAG(srcval == 0, F_ZF); - for(*dstreg = 0; *dstreg < 32; (*dstreg)++) - if ((srcval >> *dstreg) & 1) break; - } else { - u16 srcval, *dstreg; - - srcoffset = decode_rm01_address(rl); - DECODE_PRINTF(","); - dstreg = DECODE_RM_WORD_REGISTER(rh); - TRACE_AND_STEP(); - srcval = fetch_data_word(srcoffset); - CONDITIONAL_SET_FLAG(srcval == 0, F_ZF); - for(*dstreg = 0; *dstreg < 16; (*dstreg)++) - if ((srcval >> *dstreg) & 1) break; - } - break; - case 2: - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - u32 srcval, *dstreg; - - srcoffset = decode_rm10_address(rl); - DECODE_PRINTF(","); - dstreg = DECODE_RM_LONG_REGISTER(rh); - TRACE_AND_STEP(); - srcval = fetch_data_long(srcoffset); - CONDITIONAL_SET_FLAG(srcval == 0, F_ZF); - for(*dstreg = 0; *dstreg < 32; (*dstreg)++) - if ((srcval >> *dstreg) & 1) break; - } else { - u16 srcval, *dstreg; - - srcoffset = decode_rm10_address(rl); - DECODE_PRINTF(","); - dstreg = DECODE_RM_WORD_REGISTER(rh); - TRACE_AND_STEP(); - srcval = fetch_data_word(srcoffset); - CONDITIONAL_SET_FLAG(srcval == 0, F_ZF); - for(*dstreg = 0; *dstreg < 16; (*dstreg)++) - if ((srcval >> *dstreg) & 1) break; - } - break; - case 3: /* register to register */ - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - u32 srcval, *dstreg; - - srcval = *DECODE_RM_LONG_REGISTER(rl); - DECODE_PRINTF(","); - dstreg = DECODE_RM_LONG_REGISTER(rh); - TRACE_AND_STEP(); - CONDITIONAL_SET_FLAG(srcval == 0, F_ZF); - for(*dstreg = 0; *dstreg < 32; (*dstreg)++) - if ((srcval >> *dstreg) & 1) break; - } else { - u16 srcval, *dstreg; - - srcval = *DECODE_RM_WORD_REGISTER(rl); - DECODE_PRINTF(","); - dstreg = DECODE_RM_WORD_REGISTER(rh); - TRACE_AND_STEP(); - CONDITIONAL_SET_FLAG(srcval == 0, F_ZF); - for(*dstreg = 0; *dstreg < 16; (*dstreg)++) - if ((srcval >> *dstreg) & 1) break; - } - break; - } - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0x0f,0xbd -****************************************************************************/ -static void x86emuOp2_bsr(u8 X86EMU_UNUSED(op2)) -{ - int mod, rl, rh; - uint srcoffset; - - START_OF_INSTR(); - DECODE_PRINTF("BSR\t"); - FETCH_DECODE_MODRM(mod, rh, rl); - switch(mod) { - case 0: - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - u32 srcval, *dstreg; - - srcoffset = decode_rm00_address(rl); - DECODE_PRINTF(","); - dstreg = DECODE_RM_LONG_REGISTER(rh); - TRACE_AND_STEP(); - srcval = fetch_data_long(srcoffset); - CONDITIONAL_SET_FLAG(srcval == 0, F_ZF); - for(*dstreg = 31; *dstreg > 0; (*dstreg)--) - if ((srcval >> *dstreg) & 1) break; - } else { - u16 srcval, *dstreg; - - srcoffset = decode_rm00_address(rl); - DECODE_PRINTF(","); - dstreg = DECODE_RM_WORD_REGISTER(rh); - TRACE_AND_STEP(); - srcval = fetch_data_word(srcoffset); - CONDITIONAL_SET_FLAG(srcval == 0, F_ZF); - for(*dstreg = 15; *dstreg > 0; (*dstreg)--) - if ((srcval >> *dstreg) & 1) break; - } - break; - case 1: - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - u32 srcval, *dstreg; - - srcoffset = decode_rm01_address(rl); - DECODE_PRINTF(","); - dstreg = DECODE_RM_LONG_REGISTER(rh); - TRACE_AND_STEP(); - srcval = fetch_data_long(srcoffset); - CONDITIONAL_SET_FLAG(srcval == 0, F_ZF); - for(*dstreg = 31; *dstreg > 0; (*dstreg)--) - if ((srcval >> *dstreg) & 1) break; - } else { - u16 srcval, *dstreg; - - srcoffset = decode_rm01_address(rl); - DECODE_PRINTF(","); - dstreg = DECODE_RM_WORD_REGISTER(rh); - TRACE_AND_STEP(); - srcval = fetch_data_word(srcoffset); - CONDITIONAL_SET_FLAG(srcval == 0, F_ZF); - for(*dstreg = 15; *dstreg > 0; (*dstreg)--) - if ((srcval >> *dstreg) & 1) break; - } - break; - case 2: - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - u32 srcval, *dstreg; - - srcoffset = decode_rm10_address(rl); - DECODE_PRINTF(","); - dstreg = DECODE_RM_LONG_REGISTER(rh); - TRACE_AND_STEP(); - srcval = fetch_data_long(srcoffset); - CONDITIONAL_SET_FLAG(srcval == 0, F_ZF); - for(*dstreg = 31; *dstreg > 0; (*dstreg)--) - if ((srcval >> *dstreg) & 1) break; - } else { - u16 srcval, *dstreg; - - srcoffset = decode_rm10_address(rl); - DECODE_PRINTF(","); - dstreg = DECODE_RM_WORD_REGISTER(rh); - TRACE_AND_STEP(); - srcval = fetch_data_word(srcoffset); - CONDITIONAL_SET_FLAG(srcval == 0, F_ZF); - for(*dstreg = 15; *dstreg > 0; (*dstreg)--) - if ((srcval >> *dstreg) & 1) break; - } - break; - case 3: /* register to register */ - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - u32 srcval, *dstreg; - - srcval = *DECODE_RM_LONG_REGISTER(rl); - DECODE_PRINTF(","); - dstreg = DECODE_RM_LONG_REGISTER(rh); - TRACE_AND_STEP(); - CONDITIONAL_SET_FLAG(srcval == 0, F_ZF); - for(*dstreg = 31; *dstreg > 0; (*dstreg)--) - if ((srcval >> *dstreg) & 1) break; - } else { - u16 srcval, *dstreg; - - srcval = *DECODE_RM_WORD_REGISTER(rl); - DECODE_PRINTF(","); - dstreg = DECODE_RM_WORD_REGISTER(rh); - TRACE_AND_STEP(); - CONDITIONAL_SET_FLAG(srcval == 0, F_ZF); - for(*dstreg = 15; *dstreg > 0; (*dstreg)--) - if ((srcval >> *dstreg) & 1) break; - } - break; - } - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0x0f,0xbe -****************************************************************************/ -static void x86emuOp2_movsx_byte_R_RM(u8 X86EMU_UNUSED(op2)) -{ - int mod, rl, rh; - uint srcoffset; - - START_OF_INSTR(); - DECODE_PRINTF("MOVSX\t"); - FETCH_DECODE_MODRM(mod, rh, rl); - switch (mod) { - case 0: - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - u32 *destreg; - u32 srcval; - - destreg = DECODE_RM_LONG_REGISTER(rh); - DECODE_PRINTF(","); - srcoffset = decode_rm00_address(rl); - srcval = (s32)((s8)fetch_data_byte(srcoffset)); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - *destreg = srcval; - } else { - u16 *destreg; - u16 srcval; - - destreg = DECODE_RM_WORD_REGISTER(rh); - DECODE_PRINTF(","); - srcoffset = decode_rm00_address(rl); - srcval = (s16)((s8)fetch_data_byte(srcoffset)); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - *destreg = srcval; - } - break; - case 1: - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - u32 *destreg; - u32 srcval; - - destreg = DECODE_RM_LONG_REGISTER(rh); - DECODE_PRINTF(","); - srcoffset = decode_rm01_address(rl); - srcval = (s32)((s8)fetch_data_byte(srcoffset)); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - *destreg = srcval; - } else { - u16 *destreg; - u16 srcval; - - destreg = DECODE_RM_WORD_REGISTER(rh); - DECODE_PRINTF(","); - srcoffset = decode_rm01_address(rl); - srcval = (s16)((s8)fetch_data_byte(srcoffset)); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - *destreg = srcval; - } - break; - case 2: - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - u32 *destreg; - u32 srcval; - - destreg = DECODE_RM_LONG_REGISTER(rh); - DECODE_PRINTF(","); - srcoffset = decode_rm10_address(rl); - srcval = (s32)((s8)fetch_data_byte(srcoffset)); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - *destreg = srcval; - } else { - u16 *destreg; - u16 srcval; - - destreg = DECODE_RM_WORD_REGISTER(rh); - DECODE_PRINTF(","); - srcoffset = decode_rm10_address(rl); - srcval = (s16)((s8)fetch_data_byte(srcoffset)); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - *destreg = srcval; - } - break; - case 3: /* register to register */ - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - u32 *destreg; - u8 *srcreg; - - destreg = DECODE_RM_LONG_REGISTER(rh); - DECODE_PRINTF(","); - srcreg = DECODE_RM_BYTE_REGISTER(rl); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - *destreg = (s32)((s8)*srcreg); - } else { - u16 *destreg; - u8 *srcreg; - - destreg = DECODE_RM_WORD_REGISTER(rh); - DECODE_PRINTF(","); - srcreg = DECODE_RM_BYTE_REGISTER(rl); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - *destreg = (s16)((s8)*srcreg); - } - break; - } - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); -} - -/**************************************************************************** -REMARKS: -Handles opcode 0x0f,0xbf -****************************************************************************/ -static void x86emuOp2_movsx_word_R_RM(u8 X86EMU_UNUSED(op2)) -{ - int mod, rl, rh; - uint srcoffset; - u32 *destreg; - u32 srcval; - u16 *srcreg; - - START_OF_INSTR(); - DECODE_PRINTF("MOVSX\t"); - FETCH_DECODE_MODRM(mod, rh, rl); - switch (mod) { - case 0: - destreg = DECODE_RM_LONG_REGISTER(rh); - DECODE_PRINTF(","); - srcoffset = decode_rm00_address(rl); - srcval = (s32)((s16)fetch_data_word(srcoffset)); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - *destreg = srcval; - break; - case 1: - destreg = DECODE_RM_LONG_REGISTER(rh); - DECODE_PRINTF(","); - srcoffset = decode_rm01_address(rl); - srcval = (s32)((s16)fetch_data_word(srcoffset)); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - *destreg = srcval; - break; - case 2: - destreg = DECODE_RM_LONG_REGISTER(rh); - DECODE_PRINTF(","); - srcoffset = decode_rm10_address(rl); - srcval = (s32)((s16)fetch_data_word(srcoffset)); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - *destreg = srcval; - break; - case 3: /* register to register */ - destreg = DECODE_RM_LONG_REGISTER(rh); - DECODE_PRINTF(","); - srcreg = DECODE_RM_WORD_REGISTER(rl); - DECODE_PRINTF("\n"); - TRACE_AND_STEP(); - *destreg = (s32)((s16)*srcreg); - break; - } - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); -} - -/* Handles opcodes 0xc8-0xcf */ -static void x86emuOp2_bswap(u8 X86EMU_UNUSED(op2)) -{ - START_OF_INSTR(); - DECODE_PRINTF("BSWAP\n"); - TRACE_AND_STEP(); - - switch (op2) { - case 0xc8: - M.x86.R_EAX = bswap_32(M.x86.R_EAX); - break; - case 0xc9: - M.x86.R_ECX = bswap_32(M.x86.R_ECX); - break; - case 0xca: - M.x86.R_EDX = bswap_32(M.x86.R_EDX); - break; - case 0xcb: - M.x86.R_EBX = bswap_32(M.x86.R_EBX); - break; - case 0xcc: - M.x86.R_ESP = bswap_32(M.x86.R_ESP); - break; - case 0xcd: - M.x86.R_EBP = bswap_32(M.x86.R_EBP); - break; - case 0xce: - M.x86.R_ESI = bswap_32(M.x86.R_ESI); - break; - case 0xcf: - M.x86.R_EDI = bswap_32(M.x86.R_EDI); - break; - default: - /* can't happen */ - break; - } - - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR(); -} - -/*************************************************************************** - * Double byte operation code table: - **************************************************************************/ -void (*x86emu_optab2[256])(u8) = -{ -/* 0x00 */ x86emuOp2_illegal_op, /* Group F (ring 0 PM) */ -/* 0x01 */ x86emuOp2_illegal_op, /* Group G (ring 0 PM) */ -/* 0x02 */ x86emuOp2_illegal_op, /* lar (ring 0 PM) */ -/* 0x03 */ x86emuOp2_illegal_op, /* lsl (ring 0 PM) */ -/* 0x04 */ x86emuOp2_illegal_op, -/* 0x05 */ x86emuOp2_illegal_op, /* loadall (undocumented) */ -/* 0x06 */ x86emuOp2_illegal_op, /* clts (ring 0 PM) */ -/* 0x07 */ x86emuOp2_illegal_op, /* loadall (undocumented) */ -/* 0x08 */ x86emuOp2_illegal_op, /* invd (ring 0 PM) */ -/* 0x09 */ x86emuOp2_illegal_op, /* wbinvd (ring 0 PM) */ -/* 0x0a */ x86emuOp2_illegal_op, -/* 0x0b */ x86emuOp2_illegal_op, -/* 0x0c */ x86emuOp2_illegal_op, -/* 0x0d */ x86emuOp2_illegal_op, -/* 0x0e */ x86emuOp2_illegal_op, -/* 0x0f */ x86emuOp2_illegal_op, - -/* 0x10 */ x86emuOp2_illegal_op, -/* 0x11 */ x86emuOp2_illegal_op, -/* 0x12 */ x86emuOp2_illegal_op, -/* 0x13 */ x86emuOp2_illegal_op, -/* 0x14 */ x86emuOp2_illegal_op, -/* 0x15 */ x86emuOp2_illegal_op, -/* 0x16 */ x86emuOp2_illegal_op, -/* 0x17 */ x86emuOp2_illegal_op, -/* 0x18 */ x86emuOp2_illegal_op, -/* 0x19 */ x86emuOp2_illegal_op, -/* 0x1a */ x86emuOp2_illegal_op, -/* 0x1b */ x86emuOp2_illegal_op, -/* 0x1c */ x86emuOp2_illegal_op, -/* 0x1d */ x86emuOp2_illegal_op, -/* 0x1e */ x86emuOp2_illegal_op, -/* 0x1f */ x86emuOp2_illegal_op, - -/* 0x20 */ x86emuOp2_illegal_op, /* mov reg32,creg (ring 0 PM) */ -/* 0x21 */ x86emuOp2_illegal_op, /* mov reg32,dreg (ring 0 PM) */ -/* 0x22 */ x86emuOp2_illegal_op, /* mov creg,reg32 (ring 0 PM) */ -/* 0x23 */ x86emuOp2_illegal_op, /* mov dreg,reg32 (ring 0 PM) */ -/* 0x24 */ x86emuOp2_illegal_op, /* mov reg32,treg (ring 0 PM) */ -/* 0x25 */ x86emuOp2_illegal_op, -/* 0x26 */ x86emuOp2_illegal_op, /* mov treg,reg32 (ring 0 PM) */ -/* 0x27 */ x86emuOp2_illegal_op, -/* 0x28 */ x86emuOp2_illegal_op, -/* 0x29 */ x86emuOp2_illegal_op, -/* 0x2a */ x86emuOp2_illegal_op, -/* 0x2b */ x86emuOp2_illegal_op, -/* 0x2c */ x86emuOp2_illegal_op, -/* 0x2d */ x86emuOp2_illegal_op, -/* 0x2e */ x86emuOp2_illegal_op, -/* 0x2f */ x86emuOp2_illegal_op, - -/* 0x30 */ x86emuOp2_illegal_op, -/* 0x31 */ x86emuOp2_rdtsc, -/* 0x32 */ x86emuOp2_illegal_op, -/* 0x33 */ x86emuOp2_illegal_op, -/* 0x34 */ x86emuOp2_illegal_op, -/* 0x35 */ x86emuOp2_illegal_op, -/* 0x36 */ x86emuOp2_illegal_op, -/* 0x37 */ x86emuOp2_illegal_op, -/* 0x38 */ x86emuOp2_illegal_op, -/* 0x39 */ x86emuOp2_illegal_op, -/* 0x3a */ x86emuOp2_illegal_op, -/* 0x3b */ x86emuOp2_illegal_op, -/* 0x3c */ x86emuOp2_illegal_op, -/* 0x3d */ x86emuOp2_illegal_op, -/* 0x3e */ x86emuOp2_illegal_op, -/* 0x3f */ x86emuOp2_illegal_op, - -/* 0x40 */ x86emuOp2_illegal_op, -/* 0x41 */ x86emuOp2_illegal_op, -/* 0x42 */ x86emuOp2_illegal_op, -/* 0x43 */ x86emuOp2_illegal_op, -/* 0x44 */ x86emuOp2_illegal_op, -/* 0x45 */ x86emuOp2_illegal_op, -/* 0x46 */ x86emuOp2_illegal_op, -/* 0x47 */ x86emuOp2_illegal_op, -/* 0x48 */ x86emuOp2_illegal_op, -/* 0x49 */ x86emuOp2_illegal_op, -/* 0x4a */ x86emuOp2_illegal_op, -/* 0x4b */ x86emuOp2_illegal_op, -/* 0x4c */ x86emuOp2_illegal_op, -/* 0x4d */ x86emuOp2_illegal_op, -/* 0x4e */ x86emuOp2_illegal_op, -/* 0x4f */ x86emuOp2_illegal_op, - -/* 0x50 */ x86emuOp2_illegal_op, -/* 0x51 */ x86emuOp2_illegal_op, -/* 0x52 */ x86emuOp2_illegal_op, -/* 0x53 */ x86emuOp2_illegal_op, -/* 0x54 */ x86emuOp2_illegal_op, -/* 0x55 */ x86emuOp2_illegal_op, -/* 0x56 */ x86emuOp2_illegal_op, -/* 0x57 */ x86emuOp2_illegal_op, -/* 0x58 */ x86emuOp2_illegal_op, -/* 0x59 */ x86emuOp2_illegal_op, -/* 0x5a */ x86emuOp2_illegal_op, -/* 0x5b */ x86emuOp2_illegal_op, -/* 0x5c */ x86emuOp2_illegal_op, -/* 0x5d */ x86emuOp2_illegal_op, -/* 0x5e */ x86emuOp2_illegal_op, -/* 0x5f */ x86emuOp2_illegal_op, - -/* 0x60 */ x86emuOp2_illegal_op, -/* 0x61 */ x86emuOp2_illegal_op, -/* 0x62 */ x86emuOp2_illegal_op, -/* 0x63 */ x86emuOp2_illegal_op, -/* 0x64 */ x86emuOp2_illegal_op, -/* 0x65 */ x86emuOp2_illegal_op, -/* 0x66 */ x86emuOp2_illegal_op, -/* 0x67 */ x86emuOp2_illegal_op, -/* 0x68 */ x86emuOp2_illegal_op, -/* 0x69 */ x86emuOp2_illegal_op, -/* 0x6a */ x86emuOp2_illegal_op, -/* 0x6b */ x86emuOp2_illegal_op, -/* 0x6c */ x86emuOp2_illegal_op, -/* 0x6d */ x86emuOp2_illegal_op, -/* 0x6e */ x86emuOp2_illegal_op, -/* 0x6f */ x86emuOp2_illegal_op, - -/* 0x70 */ x86emuOp2_illegal_op, -/* 0x71 */ x86emuOp2_illegal_op, -/* 0x72 */ x86emuOp2_illegal_op, -/* 0x73 */ x86emuOp2_illegal_op, -/* 0x74 */ x86emuOp2_illegal_op, -/* 0x75 */ x86emuOp2_illegal_op, -/* 0x76 */ x86emuOp2_illegal_op, -/* 0x77 */ x86emuOp2_illegal_op, -/* 0x78 */ x86emuOp2_illegal_op, -/* 0x79 */ x86emuOp2_illegal_op, -/* 0x7a */ x86emuOp2_illegal_op, -/* 0x7b */ x86emuOp2_illegal_op, -/* 0x7c */ x86emuOp2_illegal_op, -/* 0x7d */ x86emuOp2_illegal_op, -/* 0x7e */ x86emuOp2_illegal_op, -/* 0x7f */ x86emuOp2_illegal_op, - -/* 0x80 */ x86emuOp2_long_jump, -/* 0x81 */ x86emuOp2_long_jump, -/* 0x82 */ x86emuOp2_long_jump, -/* 0x83 */ x86emuOp2_long_jump, -/* 0x84 */ x86emuOp2_long_jump, -/* 0x85 */ x86emuOp2_long_jump, -/* 0x86 */ x86emuOp2_long_jump, -/* 0x87 */ x86emuOp2_long_jump, -/* 0x88 */ x86emuOp2_long_jump, -/* 0x89 */ x86emuOp2_long_jump, -/* 0x8a */ x86emuOp2_long_jump, -/* 0x8b */ x86emuOp2_long_jump, -/* 0x8c */ x86emuOp2_long_jump, -/* 0x8d */ x86emuOp2_long_jump, -/* 0x8e */ x86emuOp2_long_jump, -/* 0x8f */ x86emuOp2_long_jump, - -/* 0x90 */ x86emuOp2_set_byte, -/* 0x91 */ x86emuOp2_set_byte, -/* 0x92 */ x86emuOp2_set_byte, -/* 0x93 */ x86emuOp2_set_byte, -/* 0x94 */ x86emuOp2_set_byte, -/* 0x95 */ x86emuOp2_set_byte, -/* 0x96 */ x86emuOp2_set_byte, -/* 0x97 */ x86emuOp2_set_byte, -/* 0x98 */ x86emuOp2_set_byte, -/* 0x99 */ x86emuOp2_set_byte, -/* 0x9a */ x86emuOp2_set_byte, -/* 0x9b */ x86emuOp2_set_byte, -/* 0x9c */ x86emuOp2_set_byte, -/* 0x9d */ x86emuOp2_set_byte, -/* 0x9e */ x86emuOp2_set_byte, -/* 0x9f */ x86emuOp2_set_byte, - -/* 0xa0 */ x86emuOp2_push_FS, -/* 0xa1 */ x86emuOp2_pop_FS, -/* 0xa2 */ x86emuOp2_cpuid, -/* 0xa3 */ x86emuOp2_bt_R, -/* 0xa4 */ x86emuOp2_shld_IMM, -/* 0xa5 */ x86emuOp2_shld_CL, -/* 0xa6 */ x86emuOp2_illegal_op, -/* 0xa7 */ x86emuOp2_illegal_op, -/* 0xa8 */ x86emuOp2_push_GS, -/* 0xa9 */ x86emuOp2_pop_GS, -/* 0xaa */ x86emuOp2_illegal_op, -/* 0xab */ x86emuOp2_bts_R, -/* 0xac */ x86emuOp2_shrd_IMM, -/* 0xad */ x86emuOp2_shrd_CL, -/* 0xae */ x86emuOp2_illegal_op, -/* 0xaf */ x86emuOp2_imul_R_RM, - -/* 0xb0 */ x86emuOp2_illegal_op, /* TODO: cmpxchg */ -/* 0xb1 */ x86emuOp2_illegal_op, /* TODO: cmpxchg */ -/* 0xb2 */ x86emuOp2_lss_R_IMM, -/* 0xb3 */ x86emuOp2_btr_R, -/* 0xb4 */ x86emuOp2_lfs_R_IMM, -/* 0xb5 */ x86emuOp2_lgs_R_IMM, -/* 0xb6 */ x86emuOp2_movzx_byte_R_RM, -/* 0xb7 */ x86emuOp2_movzx_word_R_RM, -/* 0xb8 */ x86emuOp2_illegal_op, -/* 0xb9 */ x86emuOp2_illegal_op, -/* 0xba */ x86emuOp2_btX_I, -/* 0xbb */ x86emuOp2_btc_R, -/* 0xbc */ x86emuOp2_bsf, -/* 0xbd */ x86emuOp2_bsr, -/* 0xbe */ x86emuOp2_movsx_byte_R_RM, -/* 0xbf */ x86emuOp2_movsx_word_R_RM, - -/* 0xc0 */ x86emuOp2_illegal_op, /* TODO: xadd */ -/* 0xc1 */ x86emuOp2_illegal_op, /* TODO: xadd */ -/* 0xc2 */ x86emuOp2_illegal_op, -/* 0xc3 */ x86emuOp2_illegal_op, -/* 0xc4 */ x86emuOp2_illegal_op, -/* 0xc5 */ x86emuOp2_illegal_op, -/* 0xc6 */ x86emuOp2_illegal_op, -/* 0xc7 */ x86emuOp2_illegal_op, -/* 0xc8 */ x86emuOp2_bswap, -/* 0xc9 */ x86emuOp2_bswap, -/* 0xca */ x86emuOp2_bswap, -/* 0xcb */ x86emuOp2_bswap, -/* 0xcc */ x86emuOp2_bswap, -/* 0xcd */ x86emuOp2_bswap, -/* 0xce */ x86emuOp2_bswap, -/* 0xcf */ x86emuOp2_bswap, - -/* 0xd0 */ x86emuOp2_illegal_op, -/* 0xd1 */ x86emuOp2_illegal_op, -/* 0xd2 */ x86emuOp2_illegal_op, -/* 0xd3 */ x86emuOp2_illegal_op, -/* 0xd4 */ x86emuOp2_illegal_op, -/* 0xd5 */ x86emuOp2_illegal_op, -/* 0xd6 */ x86emuOp2_illegal_op, -/* 0xd7 */ x86emuOp2_illegal_op, -/* 0xd8 */ x86emuOp2_illegal_op, -/* 0xd9 */ x86emuOp2_illegal_op, -/* 0xda */ x86emuOp2_illegal_op, -/* 0xdb */ x86emuOp2_illegal_op, -/* 0xdc */ x86emuOp2_illegal_op, -/* 0xdd */ x86emuOp2_illegal_op, -/* 0xde */ x86emuOp2_illegal_op, -/* 0xdf */ x86emuOp2_illegal_op, - -/* 0xe0 */ x86emuOp2_illegal_op, -/* 0xe1 */ x86emuOp2_illegal_op, -/* 0xe2 */ x86emuOp2_illegal_op, -/* 0xe3 */ x86emuOp2_illegal_op, -/* 0xe4 */ x86emuOp2_illegal_op, -/* 0xe5 */ x86emuOp2_illegal_op, -/* 0xe6 */ x86emuOp2_illegal_op, -/* 0xe7 */ x86emuOp2_illegal_op, -/* 0xe8 */ x86emuOp2_illegal_op, -/* 0xe9 */ x86emuOp2_illegal_op, -/* 0xea */ x86emuOp2_illegal_op, -/* 0xeb */ x86emuOp2_illegal_op, -/* 0xec */ x86emuOp2_illegal_op, -/* 0xed */ x86emuOp2_illegal_op, -/* 0xee */ x86emuOp2_illegal_op, -/* 0xef */ x86emuOp2_illegal_op, - -/* 0xf0 */ x86emuOp2_illegal_op, -/* 0xf1 */ x86emuOp2_illegal_op, -/* 0xf2 */ x86emuOp2_illegal_op, -/* 0xf3 */ x86emuOp2_illegal_op, -/* 0xf4 */ x86emuOp2_illegal_op, -/* 0xf5 */ x86emuOp2_illegal_op, -/* 0xf6 */ x86emuOp2_illegal_op, -/* 0xf7 */ x86emuOp2_illegal_op, -/* 0xf8 */ x86emuOp2_illegal_op, -/* 0xf9 */ x86emuOp2_illegal_op, -/* 0xfa */ x86emuOp2_illegal_op, -/* 0xfb */ x86emuOp2_illegal_op, -/* 0xfc */ x86emuOp2_illegal_op, -/* 0xfd */ x86emuOp2_illegal_op, -/* 0xfe */ x86emuOp2_illegal_op, -/* 0xff */ x86emuOp2_illegal_op, -}; diff --git a/x86emu/prim_ops.c b/x86emu/prim_ops.c deleted file mode 100644 index 4a6ac5d..0000000 --- a/x86emu/prim_ops.c +++ /dev/null @@ -1,2722 +0,0 @@ -/**************************************************************************** -* -* Realmode X86 Emulator Library -* -* Copyright (C) 1996-1999 SciTech Software, Inc. -* Copyright (C) David Mosberger-Tang -* Copyright (C) 1999 Egbert Eich -* -* ======================================================================== -* -* Permission to use, copy, modify, distribute, and sell this software and -* its documentation for any purpose is hereby granted without fee, -* provided that the above copyright notice appear in all copies and that -* both that copyright notice and this permission notice appear in -* supporting documentation, and that the name of the authors not be used -* in advertising or publicity pertaining to distribution of the software -* without specific, written prior permission. The authors makes no -* representations about the suitability of this software for any purpose. -* It is provided "as is" without express or implied warranty. -* -* THE AUTHORS DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, -* INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO -* EVENT SHALL THE AUTHORS BE LIABLE FOR ANY SPECIAL, INDIRECT OR -* CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF -* USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR -* OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR -* PERFORMANCE OF THIS SOFTWARE. -* -* ======================================================================== -* -* Language: ANSI C -* Environment: Any -* Developer: Kendall Bennett -* -* Description: This file contains the code to implement the primitive -* machine operations used by the emulation code in ops.c -* -* Carry Chain Calculation -* -* This represents a somewhat expensive calculation which is -* apparently required to emulate the setting of the OF and AF flag. -* The latter is not so important, but the former is. The overflow -* flag is the XOR of the top two bits of the carry chain for an -* addition (similar for subtraction). Since we do not want to -* simulate the addition in a bitwise manner, we try to calculate the -* carry chain given the two operands and the result. -* -* So, given the following table, which represents the addition of two -* bits, we can derive a formula for the carry chain. -* -* a b cin r cout -* 0 0 0 0 0 -* 0 0 1 1 0 -* 0 1 0 1 0 -* 0 1 1 0 1 -* 1 0 0 1 0 -* 1 0 1 0 1 -* 1 1 0 0 1 -* 1 1 1 1 1 -* -* Construction of table for cout: -* -* ab -* r \ 00 01 11 10 -* |------------------ -* 0 | 0 1 1 1 -* 1 | 0 0 1 0 -* -* By inspection, one gets: cc = ab + r'(a + b) -* -* That represents alot of operations, but NO CHOICE.... -* -* Borrow Chain Calculation. -* -* The following table represents the subtraction of two bits, from -* which we can derive a formula for the borrow chain. -* -* a b bin r bout -* 0 0 0 0 0 -* 0 0 1 1 1 -* 0 1 0 1 1 -* 0 1 1 0 1 -* 1 0 0 1 0 -* 1 0 1 0 0 -* 1 1 0 0 0 -* 1 1 1 1 1 -* -* Construction of table for cout: -* -* ab -* r \ 00 01 11 10 -* |------------------ -* 0 | 0 1 0 0 -* 1 | 1 1 1 0 -* -* By inspection, one gets: bc = a'b + r(a' + b) -* -****************************************************************************/ - -#include - -#define PRIM_OPS_NO_REDEFINE_ASM -#include "x86emu/x86emui.h" - -#if defined(__GNUC__) -# if defined (__i386__) || defined(__i386) || defined(__AMD64__) || defined(__amd64__) -# include "x86emu/prim_x86_gcc.h" -# endif -#endif - -/*------------------------- Global Variables ------------------------------*/ - -static u32 x86emu_parity_tab[8] = -{ - 0x96696996, - 0x69969669, - 0x69969669, - 0x96696996, - 0x69969669, - 0x96696996, - 0x96696996, - 0x69969669, -}; - -#define PARITY(x) (((x86emu_parity_tab[(x) / 32] >> ((x) % 32)) & 1) == 0) -#define XOR2(x) (((x) ^ ((x)>>1)) & 0x1) - -/*----------------------------- Implementation ----------------------------*/ - -/**************************************************************************** -REMARKS: -Implements the AAA instruction and side effects. -****************************************************************************/ -u16 aaa_word(u16 d) -{ - u16 res; - if ((d & 0xf) > 0x9 || ACCESS_FLAG(F_AF)) { - d += 0x6; - d += 0x100; - SET_FLAG(F_AF); - SET_FLAG(F_CF); - } else { - CLEAR_FLAG(F_CF); - CLEAR_FLAG(F_AF); - } - res = (u16)(d & 0xFF0F); - CLEAR_FLAG(F_SF); - CONDITIONAL_SET_FLAG(res == 0, F_ZF); - CONDITIONAL_SET_FLAG(PARITY(res & 0xff), F_PF); - return res; -} - -/**************************************************************************** -REMARKS: -Implements the AAA instruction and side effects. -****************************************************************************/ -u16 aas_word(u16 d) -{ - u16 res; - if ((d & 0xf) > 0x9 || ACCESS_FLAG(F_AF)) { - d -= 0x6; - d -= 0x100; - SET_FLAG(F_AF); - SET_FLAG(F_CF); - } else { - CLEAR_FLAG(F_CF); - CLEAR_FLAG(F_AF); - } - res = (u16)(d & 0xFF0F); - CLEAR_FLAG(F_SF); - CONDITIONAL_SET_FLAG(res == 0, F_ZF); - CONDITIONAL_SET_FLAG(PARITY(res & 0xff), F_PF); - return res; -} - -/**************************************************************************** -REMARKS: -Implements the AAD instruction and side effects. -****************************************************************************/ -u16 aad_word(u16 d) -{ - u16 l; - u8 hb, lb; - - hb = (u8)((d >> 8) & 0xff); - lb = (u8)((d & 0xff)); - l = (u16)((lb + 10 * hb) & 0xFF); - - CLEAR_FLAG(F_CF); - CLEAR_FLAG(F_AF); - CLEAR_FLAG(F_OF); - CONDITIONAL_SET_FLAG(l & 0x80, F_SF); - CONDITIONAL_SET_FLAG(l == 0, F_ZF); - CONDITIONAL_SET_FLAG(PARITY(l & 0xff), F_PF); - return l; -} - -/**************************************************************************** -REMARKS: -Implements the AAM instruction and side effects. -****************************************************************************/ -u16 aam_word(u8 d) -{ - u16 h, l; - - h = (u16)(d / 10); - l = (u16)(d % 10); - l |= (u16)(h << 8); - - CLEAR_FLAG(F_CF); - CLEAR_FLAG(F_AF); - CLEAR_FLAG(F_OF); - CONDITIONAL_SET_FLAG(l & 0x80, F_SF); - CONDITIONAL_SET_FLAG(l == 0, F_ZF); - CONDITIONAL_SET_FLAG(PARITY(l & 0xff), F_PF); - return l; -} - -/**************************************************************************** -REMARKS: -Implements the ADC instruction and side effects. -****************************************************************************/ -u8 adc_byte(u8 d, u8 s) -{ - register u32 res; /* all operands in native machine order */ - register u32 cc; - - if (ACCESS_FLAG(F_CF)) - res = 1 + d + s; - else - res = d + s; - - CONDITIONAL_SET_FLAG(res & 0x100, F_CF); - CONDITIONAL_SET_FLAG((res & 0xff) == 0, F_ZF); - CONDITIONAL_SET_FLAG(res & 0x80, F_SF); - CONDITIONAL_SET_FLAG(PARITY(res & 0xff), F_PF); - - /* calculate the carry chain SEE NOTE AT TOP. */ - cc = (s & d) | ((~res) & (s | d)); - CONDITIONAL_SET_FLAG(XOR2(cc >> 6), F_OF); - CONDITIONAL_SET_FLAG(cc & 0x8, F_AF); - return (u8)res; -} - -/**************************************************************************** -REMARKS: -Implements the ADC instruction and side effects. -****************************************************************************/ -u16 adc_word(u16 d, u16 s) -{ - register u32 res; /* all operands in native machine order */ - register u32 cc; - - if (ACCESS_FLAG(F_CF)) - res = 1 + d + s; - else - res = d + s; - - CONDITIONAL_SET_FLAG(res & 0x10000, F_CF); - CONDITIONAL_SET_FLAG((res & 0xffff) == 0, F_ZF); - CONDITIONAL_SET_FLAG(res & 0x8000, F_SF); - CONDITIONAL_SET_FLAG(PARITY(res & 0xff), F_PF); - - /* calculate the carry chain SEE NOTE AT TOP. */ - cc = (s & d) | ((~res) & (s | d)); - CONDITIONAL_SET_FLAG(XOR2(cc >> 14), F_OF); - CONDITIONAL_SET_FLAG(cc & 0x8, F_AF); - return (u16)res; -} - -/**************************************************************************** -REMARKS: -Implements the ADC instruction and side effects. -****************************************************************************/ -u32 adc_long(u32 d, u32 s) -{ - register u32 lo; /* all operands in native machine order */ - register u32 hi; - register u32 res; - register u32 cc; - - if (ACCESS_FLAG(F_CF)) { - lo = 1 + (d & 0xFFFF) + (s & 0xFFFF); - res = 1 + d + s; - } - else { - lo = (d & 0xFFFF) + (s & 0xFFFF); - res = d + s; - } - hi = (lo >> 16) + (d >> 16) + (s >> 16); - - CONDITIONAL_SET_FLAG(hi & 0x10000, F_CF); - CONDITIONAL_SET_FLAG((res & 0xffffffff) == 0, F_ZF); - CONDITIONAL_SET_FLAG(res & 0x80000000, F_SF); - CONDITIONAL_SET_FLAG(PARITY(res & 0xff), F_PF); - - /* calculate the carry chain SEE NOTE AT TOP. */ - cc = (s & d) | ((~res) & (s | d)); - CONDITIONAL_SET_FLAG(XOR2(cc >> 30), F_OF); - CONDITIONAL_SET_FLAG(cc & 0x8, F_AF); - return res; -} - -/**************************************************************************** -REMARKS: -Implements the ADD instruction and side effects. -****************************************************************************/ -u8 add_byte(u8 d, u8 s) -{ - register u32 res; /* all operands in native machine order */ - register u32 cc; - - res = d + s; - CONDITIONAL_SET_FLAG(res & 0x100, F_CF); - CONDITIONAL_SET_FLAG((res & 0xff) == 0, F_ZF); - CONDITIONAL_SET_FLAG(res & 0x80, F_SF); - CONDITIONAL_SET_FLAG(PARITY(res & 0xff), F_PF); - - /* calculate the carry chain SEE NOTE AT TOP. */ - cc = (s & d) | ((~res) & (s | d)); - CONDITIONAL_SET_FLAG(XOR2(cc >> 6), F_OF); - CONDITIONAL_SET_FLAG(cc & 0x8, F_AF); - return (u8)res; -} - -/**************************************************************************** -REMARKS: -Implements the ADD instruction and side effects. -****************************************************************************/ -u16 add_word(u16 d, u16 s) -{ - register u32 res; /* all operands in native machine order */ - register u32 cc; - - res = d + s; - CONDITIONAL_SET_FLAG(res & 0x10000, F_CF); - CONDITIONAL_SET_FLAG((res & 0xffff) == 0, F_ZF); - CONDITIONAL_SET_FLAG(res & 0x8000, F_SF); - CONDITIONAL_SET_FLAG(PARITY(res & 0xff), F_PF); - - /* calculate the carry chain SEE NOTE AT TOP. */ - cc = (s & d) | ((~res) & (s | d)); - CONDITIONAL_SET_FLAG(XOR2(cc >> 14), F_OF); - CONDITIONAL_SET_FLAG(cc & 0x8, F_AF); - return (u16)res; -} - -/**************************************************************************** -REMARKS: -Implements the ADD instruction and side effects. -****************************************************************************/ -u32 add_long(u32 d, u32 s) -{ - register u32 lo; /* all operands in native machine order */ - register u32 hi; - register u32 res; - register u32 cc; - - lo = (d & 0xFFFF) + (s & 0xFFFF); - res = d + s; - hi = (lo >> 16) + (d >> 16) + (s >> 16); - - CONDITIONAL_SET_FLAG(hi & 0x10000, F_CF); - CONDITIONAL_SET_FLAG((res & 0xffffffff) == 0, F_ZF); - CONDITIONAL_SET_FLAG(res & 0x80000000, F_SF); - CONDITIONAL_SET_FLAG(PARITY(res & 0xff), F_PF); - - /* calculate the carry chain SEE NOTE AT TOP. */ - cc = (s & d) | ((~res) & (s | d)); - CONDITIONAL_SET_FLAG(XOR2(cc >> 30), F_OF); - CONDITIONAL_SET_FLAG(cc & 0x8, F_AF); - - return res; -} - -/**************************************************************************** -REMARKS: -Implements the AND instruction and side effects. -****************************************************************************/ -u8 and_byte(u8 d, u8 s) -{ - register u8 res; /* all operands in native machine order */ - - res = d & s; - - /* set the flags */ - CLEAR_FLAG(F_OF); - CLEAR_FLAG(F_CF); - CLEAR_FLAG(F_AF); - CONDITIONAL_SET_FLAG(res & 0x80, F_SF); - CONDITIONAL_SET_FLAG(res == 0, F_ZF); - CONDITIONAL_SET_FLAG(PARITY(res), F_PF); - return res; -} - -/**************************************************************************** -REMARKS: -Implements the AND instruction and side effects. -****************************************************************************/ -u16 and_word(u16 d, u16 s) -{ - register u16 res; /* all operands in native machine order */ - - res = d & s; - - /* set the flags */ - CLEAR_FLAG(F_OF); - CLEAR_FLAG(F_CF); - CLEAR_FLAG(F_AF); - CONDITIONAL_SET_FLAG(res & 0x8000, F_SF); - CONDITIONAL_SET_FLAG(res == 0, F_ZF); - CONDITIONAL_SET_FLAG(PARITY(res & 0xff), F_PF); - return res; -} - -/**************************************************************************** -REMARKS: -Implements the AND instruction and side effects. -****************************************************************************/ -u32 and_long(u32 d, u32 s) -{ - register u32 res; /* all operands in native machine order */ - - res = d & s; - - /* set the flags */ - CLEAR_FLAG(F_OF); - CLEAR_FLAG(F_CF); - CLEAR_FLAG(F_AF); - CONDITIONAL_SET_FLAG(res & 0x80000000, F_SF); - CONDITIONAL_SET_FLAG(res == 0, F_ZF); - CONDITIONAL_SET_FLAG(PARITY(res & 0xff), F_PF); - return res; -} - -/**************************************************************************** -REMARKS: -Implements the CMP instruction and side effects. -****************************************************************************/ -u8 cmp_byte(u8 d, u8 s) -{ - register u32 res; /* all operands in native machine order */ - register u32 bc; - - res = d - s; - CLEAR_FLAG(F_CF); - CONDITIONAL_SET_FLAG(res & 0x80, F_SF); - CONDITIONAL_SET_FLAG((res & 0xff) == 0, F_ZF); - CONDITIONAL_SET_FLAG(PARITY(res & 0xff), F_PF); - - /* calculate the borrow chain. See note at top */ - bc = (res & (~d | s)) | (~d & s); - CONDITIONAL_SET_FLAG(bc & 0x80, F_CF); - CONDITIONAL_SET_FLAG(XOR2(bc >> 6), F_OF); - CONDITIONAL_SET_FLAG(bc & 0x8, F_AF); - return d; -} - -/**************************************************************************** -REMARKS: -Implements the CMP instruction and side effects. -****************************************************************************/ -u16 cmp_word(u16 d, u16 s) -{ - register u32 res; /* all operands in native machine order */ - register u32 bc; - - res = d - s; - CONDITIONAL_SET_FLAG(res & 0x8000, F_SF); - CONDITIONAL_SET_FLAG((res & 0xffff) == 0, F_ZF); - CONDITIONAL_SET_FLAG(PARITY(res & 0xff), F_PF); - - /* calculate the borrow chain. See note at top */ - bc = (res & (~d | s)) | (~d & s); - CONDITIONAL_SET_FLAG(bc & 0x8000, F_CF); - CONDITIONAL_SET_FLAG(XOR2(bc >> 14), F_OF); - CONDITIONAL_SET_FLAG(bc & 0x8, F_AF); - return d; -} - -/**************************************************************************** -REMARKS: -Implements the CMP instruction and side effects. -****************************************************************************/ -u32 cmp_long(u32 d, u32 s) -{ - register u32 res; /* all operands in native machine order */ - register u32 bc; - - res = d - s; - CONDITIONAL_SET_FLAG(res & 0x80000000, F_SF); - CONDITIONAL_SET_FLAG((res & 0xffffffff) == 0, F_ZF); - CONDITIONAL_SET_FLAG(PARITY(res & 0xff), F_PF); - - /* calculate the borrow chain. See note at top */ - bc = (res & (~d | s)) | (~d & s); - CONDITIONAL_SET_FLAG(bc & 0x80000000, F_CF); - CONDITIONAL_SET_FLAG(XOR2(bc >> 30), F_OF); - CONDITIONAL_SET_FLAG(bc & 0x8, F_AF); - return d; -} - -/**************************************************************************** -REMARKS: -Implements the DAA instruction and side effects. -****************************************************************************/ -u8 daa_byte(u8 d) -{ - u32 res = d; - if ((d & 0xf) > 9 || ACCESS_FLAG(F_AF)) { - res += 6; - SET_FLAG(F_AF); - } - if (res > 0x9F || ACCESS_FLAG(F_CF)) { - res += 0x60; - SET_FLAG(F_CF); - } - CONDITIONAL_SET_FLAG(res & 0x80, F_SF); - CONDITIONAL_SET_FLAG((res & 0xFF) == 0, F_ZF); - CONDITIONAL_SET_FLAG(PARITY(res & 0xff), F_PF); - return (u8)res; -} - -/**************************************************************************** -REMARKS: -Implements the DAS instruction and side effects. -****************************************************************************/ -u8 das_byte(u8 d) -{ - if ((d & 0xf) > 9 || ACCESS_FLAG(F_AF)) { - d -= 6; - SET_FLAG(F_AF); - } - if (d > 0x9F || ACCESS_FLAG(F_CF)) { - d -= 0x60; - SET_FLAG(F_CF); - } - CONDITIONAL_SET_FLAG(d & 0x80, F_SF); - CONDITIONAL_SET_FLAG(d == 0, F_ZF); - CONDITIONAL_SET_FLAG(PARITY(d & 0xff), F_PF); - return d; -} - -/**************************************************************************** -REMARKS: -Implements the DEC instruction and side effects. -****************************************************************************/ -u8 dec_byte(u8 d) -{ - register u32 res; /* all operands in native machine order */ - register u32 bc; - - res = d - 1; - CONDITIONAL_SET_FLAG(res & 0x80, F_SF); - CONDITIONAL_SET_FLAG((res & 0xff) == 0, F_ZF); - CONDITIONAL_SET_FLAG(PARITY(res & 0xff), F_PF); - - /* calculate the borrow chain. See note at top */ - /* based on sub_byte, uses s==1. */ - bc = (res & (~d | 1)) | (~d & 1); - /* carry flag unchanged */ - CONDITIONAL_SET_FLAG(XOR2(bc >> 6), F_OF); - CONDITIONAL_SET_FLAG(bc & 0x8, F_AF); - return (u8)res; -} - -/**************************************************************************** -REMARKS: -Implements the DEC instruction and side effects. -****************************************************************************/ -u16 dec_word(u16 d) -{ - register u32 res; /* all operands in native machine order */ - register u32 bc; - - res = d - 1; - CONDITIONAL_SET_FLAG(res & 0x8000, F_SF); - CONDITIONAL_SET_FLAG((res & 0xffff) == 0, F_ZF); - CONDITIONAL_SET_FLAG(PARITY(res & 0xff), F_PF); - - /* calculate the borrow chain. See note at top */ - /* based on the sub_byte routine, with s==1 */ - bc = (res & (~d | 1)) | (~d & 1); - /* carry flag unchanged */ - CONDITIONAL_SET_FLAG(XOR2(bc >> 14), F_OF); - CONDITIONAL_SET_FLAG(bc & 0x8, F_AF); - return (u16)res; -} - -/**************************************************************************** -REMARKS: -Implements the DEC instruction and side effects. -****************************************************************************/ -u32 dec_long(u32 d) -{ - register u32 res; /* all operands in native machine order */ - register u32 bc; - - res = d - 1; - - CONDITIONAL_SET_FLAG(res & 0x80000000, F_SF); - CONDITIONAL_SET_FLAG((res & 0xffffffff) == 0, F_ZF); - CONDITIONAL_SET_FLAG(PARITY(res & 0xff), F_PF); - - /* calculate the borrow chain. See note at top */ - bc = (res & (~d | 1)) | (~d & 1); - /* carry flag unchanged */ - CONDITIONAL_SET_FLAG(XOR2(bc >> 30), F_OF); - CONDITIONAL_SET_FLAG(bc & 0x8, F_AF); - return res; -} - -/**************************************************************************** -REMARKS: -Implements the INC instruction and side effects. -****************************************************************************/ -u8 inc_byte(u8 d) -{ - register u32 res; /* all operands in native machine order */ - register u32 cc; - - res = d + 1; - CONDITIONAL_SET_FLAG((res & 0xff) == 0, F_ZF); - CONDITIONAL_SET_FLAG(res & 0x80, F_SF); - CONDITIONAL_SET_FLAG(PARITY(res & 0xff), F_PF); - - /* calculate the carry chain SEE NOTE AT TOP. */ - cc = ((1 & d) | (~res)) & (1 | d); - CONDITIONAL_SET_FLAG(XOR2(cc >> 6), F_OF); - CONDITIONAL_SET_FLAG(cc & 0x8, F_AF); - return (u8)res; -} - -/**************************************************************************** -REMARKS: -Implements the INC instruction and side effects. -****************************************************************************/ -u16 inc_word(u16 d) -{ - register u32 res; /* all operands in native machine order */ - register u32 cc; - - res = d + 1; - CONDITIONAL_SET_FLAG((res & 0xffff) == 0, F_ZF); - CONDITIONAL_SET_FLAG(res & 0x8000, F_SF); - CONDITIONAL_SET_FLAG(PARITY(res & 0xff), F_PF); - - /* calculate the carry chain SEE NOTE AT TOP. */ - cc = (1 & d) | ((~res) & (1 | d)); - CONDITIONAL_SET_FLAG(XOR2(cc >> 14), F_OF); - CONDITIONAL_SET_FLAG(cc & 0x8, F_AF); - return (u16)res; -} - -/**************************************************************************** -REMARKS: -Implements the INC instruction and side effects. -****************************************************************************/ -u32 inc_long(u32 d) -{ - register u32 res; /* all operands in native machine order */ - register u32 cc; - - res = d + 1; - CONDITIONAL_SET_FLAG((res & 0xffffffff) == 0, F_ZF); - CONDITIONAL_SET_FLAG(res & 0x80000000, F_SF); - CONDITIONAL_SET_FLAG(PARITY(res & 0xff), F_PF); - - /* calculate the carry chain SEE NOTE AT TOP. */ - cc = (1 & d) | ((~res) & (1 | d)); - CONDITIONAL_SET_FLAG(XOR2(cc >> 30), F_OF); - CONDITIONAL_SET_FLAG(cc & 0x8, F_AF); - return res; -} - -/**************************************************************************** -REMARKS: -Implements the OR instruction and side effects. -****************************************************************************/ -u8 or_byte(u8 d, u8 s) -{ - register u8 res; /* all operands in native machine order */ - - res = d | s; - CLEAR_FLAG(F_OF); - CLEAR_FLAG(F_CF); - CLEAR_FLAG(F_AF); - CONDITIONAL_SET_FLAG(res & 0x80, F_SF); - CONDITIONAL_SET_FLAG(res == 0, F_ZF); - CONDITIONAL_SET_FLAG(PARITY(res), F_PF); - return res; -} - -/**************************************************************************** -REMARKS: -Implements the OR instruction and side effects. -****************************************************************************/ -u16 or_word(u16 d, u16 s) -{ - register u16 res; /* all operands in native machine order */ - - res = d | s; - /* set the carry flag to be bit 8 */ - CLEAR_FLAG(F_OF); - CLEAR_FLAG(F_CF); - CLEAR_FLAG(F_AF); - CONDITIONAL_SET_FLAG(res & 0x8000, F_SF); - CONDITIONAL_SET_FLAG(res == 0, F_ZF); - CONDITIONAL_SET_FLAG(PARITY(res & 0xff), F_PF); - return res; -} - -/**************************************************************************** -REMARKS: -Implements the OR instruction and side effects. -****************************************************************************/ -u32 or_long(u32 d, u32 s) -{ - register u32 res; /* all operands in native machine order */ - - res = d | s; - - /* set the carry flag to be bit 8 */ - CLEAR_FLAG(F_OF); - CLEAR_FLAG(F_CF); - CLEAR_FLAG(F_AF); - CONDITIONAL_SET_FLAG(res & 0x80000000, F_SF); - CONDITIONAL_SET_FLAG(res == 0, F_ZF); - CONDITIONAL_SET_FLAG(PARITY(res & 0xff), F_PF); - return res; -} - -/**************************************************************************** -REMARKS: -Implements the OR instruction and side effects. -****************************************************************************/ -u8 neg_byte(u8 s) -{ - register u8 res; - register u8 bc; - - CONDITIONAL_SET_FLAG(s != 0, F_CF); - res = (u8)-s; - CONDITIONAL_SET_FLAG((res & 0xff) == 0, F_ZF); - CONDITIONAL_SET_FLAG(res & 0x80, F_SF); - CONDITIONAL_SET_FLAG(PARITY(res), F_PF); - /* calculate the borrow chain --- modified such that d=0. - substitutiing d=0 into bc= res&(~d|s)|(~d&s); - (the one used for sub) and simplifying, since ~d=0xff..., - ~d|s == 0xffff..., and res&0xfff... == res. Similarly - ~d&s == s. So the simplified result is: */ - bc = res | s; - CONDITIONAL_SET_FLAG(XOR2(bc >> 6), F_OF); - CONDITIONAL_SET_FLAG(bc & 0x8, F_AF); - return res; -} - -/**************************************************************************** -REMARKS: -Implements the OR instruction and side effects. -****************************************************************************/ -u16 neg_word(u16 s) -{ - register u16 res; - register u16 bc; - - CONDITIONAL_SET_FLAG(s != 0, F_CF); - res = (u16)-s; - CONDITIONAL_SET_FLAG((res & 0xffff) == 0, F_ZF); - CONDITIONAL_SET_FLAG(res & 0x8000, F_SF); - CONDITIONAL_SET_FLAG(PARITY(res & 0xff), F_PF); - - /* calculate the borrow chain --- modified such that d=0. - substitutiing d=0 into bc= res&(~d|s)|(~d&s); - (the one used for sub) and simplifying, since ~d=0xff..., - ~d|s == 0xffff..., and res&0xfff... == res. Similarly - ~d&s == s. So the simplified result is: */ - bc = res | s; - CONDITIONAL_SET_FLAG(XOR2(bc >> 14), F_OF); - CONDITIONAL_SET_FLAG(bc & 0x8, F_AF); - return res; -} - -/**************************************************************************** -REMARKS: -Implements the OR instruction and side effects. -****************************************************************************/ -u32 neg_long(u32 s) -{ - register u32 res; - register u32 bc; - - CONDITIONAL_SET_FLAG(s != 0, F_CF); - res = (u32)-s; - CONDITIONAL_SET_FLAG((res & 0xffffffff) == 0, F_ZF); - CONDITIONAL_SET_FLAG(res & 0x80000000, F_SF); - CONDITIONAL_SET_FLAG(PARITY(res & 0xff), F_PF); - - /* calculate the borrow chain --- modified such that d=0. - substitutiing d=0 into bc= res&(~d|s)|(~d&s); - (the one used for sub) and simplifying, since ~d=0xff..., - ~d|s == 0xffff..., and res&0xfff... == res. Similarly - ~d&s == s. So the simplified result is: */ - bc = res | s; - CONDITIONAL_SET_FLAG(XOR2(bc >> 30), F_OF); - CONDITIONAL_SET_FLAG(bc & 0x8, F_AF); - return res; -} - -/**************************************************************************** -REMARKS: -Implements the NOT instruction and side effects. -****************************************************************************/ -u8 not_byte(u8 s) -{ - return ~s; -} - -/**************************************************************************** -REMARKS: -Implements the NOT instruction and side effects. -****************************************************************************/ -u16 not_word(u16 s) -{ - return ~s; -} - -/**************************************************************************** -REMARKS: -Implements the NOT instruction and side effects. -****************************************************************************/ -u32 not_long(u32 s) -{ - return ~s; -} - -/**************************************************************************** -REMARKS: -Implements the RCL instruction and side effects. -****************************************************************************/ -u8 rcl_byte(u8 d, u8 s) -{ - register unsigned int res, cnt, mask, cf; - - /* s is the rotate distance. It varies from 0 - 8. */ - /* have - - CF B_7 B_6 B_5 B_4 B_3 B_2 B_1 B_0 - - want to rotate through the carry by "s" bits. We could - loop, but that's inefficient. So the width is 9, - and we split into three parts: - - The new carry flag (was B_n) - the stuff in B_n-1 .. B_0 - the stuff in B_7 .. B_n+1 - - The new rotate is done mod 9, and given this, - for a rotation of n bits (mod 9) the new carry flag is - then located n bits from the MSB. The low part is - then shifted up cnt bits, and the high part is or'd - in. Using CAPS for new values, and lowercase for the - original values, this can be expressed as: - - IF n > 0 - 1) CF <- b_(8-n) - 2) B_(7) .. B_(n) <- b_(8-(n+1)) .. b_0 - 3) B_(n-1) <- cf - 4) B_(n-2) .. B_0 <- b_7 .. b_(8-(n-1)) - */ - res = d; - if ((cnt = s % 9) != 0) { - /* extract the new CARRY FLAG. */ - /* CF <- b_(8-n) */ - cf = (d >> (8 - cnt)) & 0x1; - - /* get the low stuff which rotated - into the range B_7 .. B_cnt */ - /* B_(7) .. B_(n) <- b_(8-(n+1)) .. b_0 */ - /* note that the right hand side done by the mask */ - res = (d << cnt) & 0xff; - - /* now the high stuff which rotated around - into the positions B_cnt-2 .. B_0 */ - /* B_(n-2) .. B_0 <- b_7 .. b_(8-(n-1)) */ - /* shift it downward, 7-(n-2) = 9-n positions. - and mask off the result before or'ing in. - */ - mask = (1 << (cnt - 1)) - 1; - res |= (d >> (9 - cnt)) & mask; - - /* if the carry flag was set, or it in. */ - if (ACCESS_FLAG(F_CF)) { /* carry flag is set */ - /* B_(n-1) <- cf */ - res |= 1 << (cnt - 1); - } - /* set the new carry flag, based on the variable "cf" */ - CONDITIONAL_SET_FLAG(cf, F_CF); - /* OVERFLOW is set *IFF* cnt==1, then it is the - xor of CF and the most significant bit. Blecck. */ - /* parenthesized this expression since it appears to - be causing OF to be misset */ - CONDITIONAL_SET_FLAG(cnt == 1 && XOR2(cf + ((res >> 6) & 0x2)), - F_OF); - - } - return (u8)res; -} - -/**************************************************************************** -REMARKS: -Implements the RCL instruction and side effects. -****************************************************************************/ -u16 rcl_word(u16 d, u8 s) -{ - register unsigned int res, cnt, mask, cf; - - res = d; - if ((cnt = s % 17) != 0) { - cf = (d >> (16 - cnt)) & 0x1; - res = (d << cnt) & 0xffff; - mask = (1 << (cnt - 1)) - 1; - res |= (d >> (17 - cnt)) & mask; - if (ACCESS_FLAG(F_CF)) { - res |= 1 << (cnt - 1); - } - CONDITIONAL_SET_FLAG(cf, F_CF); - CONDITIONAL_SET_FLAG(cnt == 1 && XOR2(cf + ((res >> 14) & 0x2)), - F_OF); - } - return (u16)res; -} - -/**************************************************************************** -REMARKS: -Implements the RCL instruction and side effects. -****************************************************************************/ -u32 rcl_long(u32 d, u8 s) -{ - register u32 res, cnt, mask, cf; - - res = d; - if ((cnt = s % 33) != 0) { - cf = (d >> (32 - cnt)) & 0x1; - res = (d << cnt) & 0xffffffff; - mask = (1 << (cnt - 1)) - 1; - res |= (d >> (33 - cnt)) & mask; - if (ACCESS_FLAG(F_CF)) { /* carry flag is set */ - res |= 1 << (cnt - 1); - } - CONDITIONAL_SET_FLAG(cf, F_CF); - CONDITIONAL_SET_FLAG(cnt == 1 && XOR2(cf + ((res >> 30) & 0x2)), - F_OF); - } - return res; -} - -/**************************************************************************** -REMARKS: -Implements the RCR instruction and side effects. -****************************************************************************/ -u8 rcr_byte(u8 d, u8 s) -{ - u32 res, cnt; - u32 mask, cf, ocf = 0; - - /* rotate right through carry */ - /* - s is the rotate distance. It varies from 0 - 8. - d is the byte object rotated. - - have - - CF B_7 B_6 B_5 B_4 B_3 B_2 B_1 B_0 - - The new rotate is done mod 9, and given this, - for a rotation of n bits (mod 9) the new carry flag is - then located n bits from the LSB. The low part is - then shifted up cnt bits, and the high part is or'd - in. Using CAPS for new values, and lowercase for the - original values, this can be expressed as: - - IF n > 0 - 1) CF <- b_(n-1) - 2) B_(8-(n+1)) .. B_(0) <- b_(7) .. b_(n) - 3) B_(8-n) <- cf - 4) B_(7) .. B_(8-(n-1)) <- b_(n-2) .. b_(0) - */ - res = d; - if ((cnt = s % 9) != 0) { - /* extract the new CARRY FLAG. */ - /* CF <- b_(n-1) */ - if (cnt == 1) { - cf = d & 0x1; - /* note hackery here. Access_flag(..) evaluates to either - 0 if flag not set - non-zero if flag is set. - doing access_flag(..) != 0 casts that into either - 0..1 in any representation of the flags register - (i.e. packed bit array or unpacked.) - */ - ocf = ACCESS_FLAG(F_CF) != 0; - } else - cf = (d >> (cnt - 1)) & 0x1; - - /* B_(8-(n+1)) .. B_(0) <- b_(7) .. b_n */ - /* note that the right hand side done by the mask - This is effectively done by shifting the - object to the right. The result must be masked, - in case the object came in and was treated - as a negative number. Needed??? */ - - mask = (1 << (8 - cnt)) - 1; - res = (d >> cnt) & mask; - - /* now the high stuff which rotated around - into the positions B_cnt-2 .. B_0 */ - /* B_(7) .. B_(8-(n-1)) <- b_(n-2) .. b_(0) */ - /* shift it downward, 7-(n-2) = 9-n positions. - and mask off the result before or'ing in. - */ - res |= (d << (9 - cnt)); - - /* if the carry flag was set, or it in. */ - if (ACCESS_FLAG(F_CF)) { /* carry flag is set */ - /* B_(8-n) <- cf */ - res |= 1 << (8 - cnt); - } - /* set the new carry flag, based on the variable "cf" */ - CONDITIONAL_SET_FLAG(cf, F_CF); - /* OVERFLOW is set *IFF* cnt==1, then it is the - xor of CF and the most significant bit. Blecck. */ - /* parenthesized... */ - if (cnt == 1) { - CONDITIONAL_SET_FLAG(XOR2(ocf + ((d >> 6) & 0x2)), - F_OF); - } - } - return (u8)res; -} - -/**************************************************************************** -REMARKS: -Implements the RCR instruction and side effects. -****************************************************************************/ -u16 rcr_word(u16 d, u8 s) -{ - u32 res, cnt; - u32 mask, cf, ocf = 0; - - /* rotate right through carry */ - res = d; - if ((cnt = s % 17) != 0) { - if (cnt == 1) { - cf = d & 0x1; - ocf = ACCESS_FLAG(F_CF) != 0; - } else - cf = (d >> (cnt - 1)) & 0x1; - mask = (1 << (16 - cnt)) - 1; - res = (d >> cnt) & mask; - res |= (d << (17 - cnt)); - if (ACCESS_FLAG(F_CF)) { - res |= 1 << (16 - cnt); - } - CONDITIONAL_SET_FLAG(cf, F_CF); - if (cnt == 1) { - CONDITIONAL_SET_FLAG(XOR2(ocf + ((d >> 14) & 0x2)), - F_OF); - } - } - return (u16)res; -} - -/**************************************************************************** -REMARKS: -Implements the RCR instruction and side effects. -****************************************************************************/ -u32 rcr_long(u32 d, u8 s) -{ - u32 res, cnt; - u32 mask, cf, ocf = 0; - - /* rotate right through carry */ - res = d; - if ((cnt = s % 33) != 0) { - if (cnt == 1) { - cf = d & 0x1; - ocf = ACCESS_FLAG(F_CF) != 0; - } else - cf = (d >> (cnt - 1)) & 0x1; - mask = (1 << (32 - cnt)) - 1; - res = (d >> cnt) & mask; - if (cnt != 1) - res |= (d << (33 - cnt)); - if (ACCESS_FLAG(F_CF)) { /* carry flag is set */ - res |= 1 << (32 - cnt); - } - CONDITIONAL_SET_FLAG(cf, F_CF); - if (cnt == 1) { - CONDITIONAL_SET_FLAG(XOR2(ocf + ((d >> 30) & 0x2)), - F_OF); - } - } - return res; -} - -/**************************************************************************** -REMARKS: -Implements the ROL instruction and side effects. -****************************************************************************/ -u8 rol_byte(u8 d, u8 s) -{ - register unsigned int res, cnt, mask; - - /* rotate left */ - /* - s is the rotate distance. It varies from 0 - 8. - d is the byte object rotated. - - have - - CF B_7 ... B_0 - - The new rotate is done mod 8. - Much simpler than the "rcl" or "rcr" operations. - - IF n > 0 - 1) B_(7) .. B_(n) <- b_(8-(n+1)) .. b_(0) - 2) B_(n-1) .. B_(0) <- b_(7) .. b_(8-n) - */ - res = d; - if ((cnt = s % 8) != 0) { - /* B_(7) .. B_(n) <- b_(8-(n+1)) .. b_(0) */ - res = (d << cnt); - - /* B_(n-1) .. B_(0) <- b_(7) .. b_(8-n) */ - mask = (1 << cnt) - 1; - res |= (d >> (8 - cnt)) & mask; - - /* set the new carry flag, Note that it is the low order - bit of the result!!! */ - CONDITIONAL_SET_FLAG(res & 0x1, F_CF); - /* OVERFLOW is set *IFF* s==1, then it is the - xor of CF and the most significant bit. Blecck. */ - CONDITIONAL_SET_FLAG(s == 1 && - XOR2((res & 0x1) + ((res >> 6) & 0x2)), - F_OF); - } if (s != 0) { - /* set the new carry flag, Note that it is the low order - bit of the result!!! */ - CONDITIONAL_SET_FLAG(res & 0x1, F_CF); - } - return (u8)res; -} - -/**************************************************************************** -REMARKS: -Implements the ROL instruction and side effects. -****************************************************************************/ -u16 rol_word(u16 d, u8 s) -{ - register unsigned int res, cnt, mask; - - res = d; - if ((cnt = s % 16) != 0) { - res = (d << cnt); - mask = (1 << cnt) - 1; - res |= (d >> (16 - cnt)) & mask; - CONDITIONAL_SET_FLAG(res & 0x1, F_CF); - CONDITIONAL_SET_FLAG(s == 1 && - XOR2((res & 0x1) + ((res >> 14) & 0x2)), - F_OF); - } if (s != 0) { - /* set the new carry flag, Note that it is the low order - bit of the result!!! */ - CONDITIONAL_SET_FLAG(res & 0x1, F_CF); - } - return (u16)res; -} - -/**************************************************************************** -REMARKS: -Implements the ROL instruction and side effects. -****************************************************************************/ -u32 rol_long(u32 d, u8 s) -{ - register u32 res, cnt, mask; - - res = d; - if ((cnt = s % 32) != 0) { - res = (d << cnt); - mask = (1 << cnt) - 1; - res |= (d >> (32 - cnt)) & mask; - CONDITIONAL_SET_FLAG(res & 0x1, F_CF); - CONDITIONAL_SET_FLAG(s == 1 && - XOR2((res & 0x1) + ((res >> 30) & 0x2)), - F_OF); - } if (s != 0) { - /* set the new carry flag, Note that it is the low order - bit of the result!!! */ - CONDITIONAL_SET_FLAG(res & 0x1, F_CF); - } - return res; -} - -/**************************************************************************** -REMARKS: -Implements the ROR instruction and side effects. -****************************************************************************/ -u8 ror_byte(u8 d, u8 s) -{ - register unsigned int res, cnt, mask; - - /* rotate right */ - /* - s is the rotate distance. It varies from 0 - 8. - d is the byte object rotated. - - have - - B_7 ... B_0 - - The rotate is done mod 8. - - IF n > 0 - 1) B_(8-(n+1)) .. B_(0) <- b_(7) .. b_(n) - 2) B_(7) .. B_(8-n) <- b_(n-1) .. b_(0) - */ - res = d; - if ((cnt = s % 8) != 0) { /* not a typo, do nada if cnt==0 */ - /* B_(7) .. B_(8-n) <- b_(n-1) .. b_(0) */ - res = (d << (8 - cnt)); - - /* B_(8-(n+1)) .. B_(0) <- b_(7) .. b_(n) */ - mask = (1 << (8 - cnt)) - 1; - res |= (d >> (cnt)) & mask; - - /* set the new carry flag, Note that it is the low order - bit of the result!!! */ - CONDITIONAL_SET_FLAG(res & 0x80, F_CF); - /* OVERFLOW is set *IFF* s==1, then it is the - xor of the two most significant bits. Blecck. */ - CONDITIONAL_SET_FLAG(s == 1 && XOR2(res >> 6), F_OF); - } else if (s != 0) { - /* set the new carry flag, Note that it is the low order - bit of the result!!! */ - CONDITIONAL_SET_FLAG(res & 0x80, F_CF); - } - return (u8)res; -} - -/**************************************************************************** -REMARKS: -Implements the ROR instruction and side effects. -****************************************************************************/ -u16 ror_word(u16 d, u8 s) -{ - register unsigned int res, cnt, mask; - - res = d; - if ((cnt = s % 16) != 0) { - res = (d << (16 - cnt)); - mask = (1 << (16 - cnt)) - 1; - res |= (d >> (cnt)) & mask; - CONDITIONAL_SET_FLAG(res & 0x8000, F_CF); - CONDITIONAL_SET_FLAG(s == 1 && XOR2(res >> 14), F_OF); - } else if (s != 0) { - /* set the new carry flag, Note that it is the low order - bit of the result!!! */ - CONDITIONAL_SET_FLAG(res & 0x8000, F_CF); - } - return (u16)res; -} - -/**************************************************************************** -REMARKS: -Implements the ROR instruction and side effects. -****************************************************************************/ -u32 ror_long(u32 d, u8 s) -{ - register u32 res, cnt, mask; - - res = d; - if ((cnt = s % 32) != 0) { - res = (d << (32 - cnt)); - mask = (1 << (32 - cnt)) - 1; - res |= (d >> (cnt)) & mask; - CONDITIONAL_SET_FLAG(res & 0x80000000, F_CF); - CONDITIONAL_SET_FLAG(s == 1 && XOR2(res >> 30), F_OF); - } else if (s != 0) { - /* set the new carry flag, Note that it is the low order - bit of the result!!! */ - CONDITIONAL_SET_FLAG(res & 0x80000000, F_CF); - } - return res; -} - -/**************************************************************************** -REMARKS: -Implements the SHL instruction and side effects. -****************************************************************************/ -u8 shl_byte(u8 d, u8 s) -{ - unsigned int cnt, res, cf; - - if (s < 8) { - cnt = s % 8; - - /* last bit shifted out goes into carry flag */ - if (cnt > 0) { - res = d << cnt; - cf = d & (1 << (8 - cnt)); - CONDITIONAL_SET_FLAG(cf, F_CF); - CONDITIONAL_SET_FLAG((res & 0xff) == 0, F_ZF); - CONDITIONAL_SET_FLAG(res & 0x80, F_SF); - CONDITIONAL_SET_FLAG(PARITY(res & 0xff), F_PF); - } else { - res = (u8) d; - } - - if (cnt == 1) { - /* Needs simplification. */ - CONDITIONAL_SET_FLAG( - (((res & 0x80) == 0x80) ^ - (ACCESS_FLAG(F_CF) != 0)), - /* was (M.x86.R_FLG&F_CF)==F_CF)), */ - F_OF); - } else { - CLEAR_FLAG(F_OF); - } - } else { - res = 0; - CONDITIONAL_SET_FLAG((d << (s-1)) & 0x80, F_CF); - CLEAR_FLAG(F_OF); - CLEAR_FLAG(F_SF); - SET_FLAG(F_PF); - SET_FLAG(F_ZF); - } - return (u8)res; -} - -/**************************************************************************** -REMARKS: -Implements the SHL instruction and side effects. -****************************************************************************/ -u16 shl_word(u16 d, u8 s) -{ - unsigned int cnt, res, cf; - - if (s < 16) { - cnt = s % 16; - if (cnt > 0) { - res = d << cnt; - cf = d & (1 << (16 - cnt)); - CONDITIONAL_SET_FLAG(cf, F_CF); - CONDITIONAL_SET_FLAG((res & 0xffff) == 0, F_ZF); - CONDITIONAL_SET_FLAG(res & 0x8000, F_SF); - CONDITIONAL_SET_FLAG(PARITY(res & 0xff), F_PF); - } else { - res = (u16) d; - } - - if (cnt == 1) { - CONDITIONAL_SET_FLAG( - (((res & 0x8000) == 0x8000) ^ - (ACCESS_FLAG(F_CF) != 0)), - F_OF); - } else { - CLEAR_FLAG(F_OF); - } - } else { - res = 0; - CONDITIONAL_SET_FLAG((d << (s-1)) & 0x8000, F_CF); - CLEAR_FLAG(F_OF); - CLEAR_FLAG(F_SF); - SET_FLAG(F_PF); - SET_FLAG(F_ZF); - } - return (u16)res; -} - -/**************************************************************************** -REMARKS: -Implements the SHL instruction and side effects. -****************************************************************************/ -u32 shl_long(u32 d, u8 s) -{ - unsigned int cnt, res, cf; - - if (s < 32) { - cnt = s % 32; - if (cnt > 0) { - res = d << cnt; - cf = d & (1 << (32 - cnt)); - CONDITIONAL_SET_FLAG(cf, F_CF); - CONDITIONAL_SET_FLAG((res & 0xffffffff) == 0, F_ZF); - CONDITIONAL_SET_FLAG(res & 0x80000000, F_SF); - CONDITIONAL_SET_FLAG(PARITY(res & 0xff), F_PF); - } else { - res = d; - } - if (cnt == 1) { - CONDITIONAL_SET_FLAG((((res & 0x80000000) == 0x80000000) ^ - (ACCESS_FLAG(F_CF) != 0)), F_OF); - } else { - CLEAR_FLAG(F_OF); - } - } else { - res = 0; - CONDITIONAL_SET_FLAG((d << (s-1)) & 0x80000000, F_CF); - CLEAR_FLAG(F_OF); - CLEAR_FLAG(F_SF); - SET_FLAG(F_PF); - SET_FLAG(F_ZF); - } - return res; -} - -/**************************************************************************** -REMARKS: -Implements the SHR instruction and side effects. -****************************************************************************/ -u8 shr_byte(u8 d, u8 s) -{ - unsigned int cnt, res, cf; - - if (s < 8) { - cnt = s % 8; - if (cnt > 0) { - cf = d & (1 << (cnt - 1)); - res = d >> cnt; - CONDITIONAL_SET_FLAG(cf, F_CF); - CONDITIONAL_SET_FLAG((res & 0xff) == 0, F_ZF); - CONDITIONAL_SET_FLAG(res & 0x80, F_SF); - CONDITIONAL_SET_FLAG(PARITY(res & 0xff), F_PF); - } else { - res = (u8) d; - } - - if (cnt == 1) { - CONDITIONAL_SET_FLAG(XOR2(res >> 6), F_OF); - } else { - CLEAR_FLAG(F_OF); - } - } else { - res = 0; - CONDITIONAL_SET_FLAG((d >> (s-1)) & 0x1, F_CF); - CLEAR_FLAG(F_OF); - CLEAR_FLAG(F_SF); - SET_FLAG(F_PF); - SET_FLAG(F_ZF); - } - return (u8)res; -} - -/**************************************************************************** -REMARKS: -Implements the SHR instruction and side effects. -****************************************************************************/ -u16 shr_word(u16 d, u8 s) -{ - unsigned int cnt, res, cf; - - if (s < 16) { - cnt = s % 16; - if (cnt > 0) { - cf = d & (1 << (cnt - 1)); - res = d >> cnt; - CONDITIONAL_SET_FLAG(cf, F_CF); - CONDITIONAL_SET_FLAG((res & 0xffff) == 0, F_ZF); - CONDITIONAL_SET_FLAG(res & 0x8000, F_SF); - CONDITIONAL_SET_FLAG(PARITY(res & 0xff), F_PF); - } else { - res = d; - } - - if (cnt == 1) { - CONDITIONAL_SET_FLAG(XOR2(res >> 14), F_OF); - } else { - CLEAR_FLAG(F_OF); - } - } else { - res = 0; - CLEAR_FLAG(F_CF); - CLEAR_FLAG(F_OF); - SET_FLAG(F_ZF); - CLEAR_FLAG(F_SF); - CLEAR_FLAG(F_PF); - } - return (u16)res; -} - -/**************************************************************************** -REMARKS: -Implements the SHR instruction and side effects. -****************************************************************************/ -u32 shr_long(u32 d, u8 s) -{ - unsigned int cnt, res, cf; - - if (s < 32) { - cnt = s % 32; - if (cnt > 0) { - cf = d & (1 << (cnt - 1)); - res = d >> cnt; - CONDITIONAL_SET_FLAG(cf, F_CF); - CONDITIONAL_SET_FLAG((res & 0xffffffff) == 0, F_ZF); - CONDITIONAL_SET_FLAG(res & 0x80000000, F_SF); - CONDITIONAL_SET_FLAG(PARITY(res & 0xff), F_PF); - } else { - res = d; - } - if (cnt == 1) { - CONDITIONAL_SET_FLAG(XOR2(res >> 30), F_OF); - } else { - CLEAR_FLAG(F_OF); - } - } else { - res = 0; - CLEAR_FLAG(F_CF); - CLEAR_FLAG(F_OF); - SET_FLAG(F_ZF); - CLEAR_FLAG(F_SF); - CLEAR_FLAG(F_PF); - } - return res; -} - -/**************************************************************************** -REMARKS: -Implements the SAR instruction and side effects. -****************************************************************************/ -u8 sar_byte(u8 d, u8 s) -{ - unsigned int cnt, res, cf, mask, sf; - - res = d; - sf = d & 0x80; - cnt = s % 8; - if (cnt > 0 && cnt < 8) { - mask = (1 << (8 - cnt)) - 1; - cf = d & (1 << (cnt - 1)); - res = (d >> cnt) & mask; - CONDITIONAL_SET_FLAG(cf, F_CF); - if (sf) { - res |= ~mask; - } - CONDITIONAL_SET_FLAG((res & 0xff) == 0, F_ZF); - CONDITIONAL_SET_FLAG(PARITY(res & 0xff), F_PF); - CONDITIONAL_SET_FLAG(res & 0x80, F_SF); - } else if (cnt >= 8) { - if (sf) { - res = 0xff; - SET_FLAG(F_CF); - CLEAR_FLAG(F_ZF); - SET_FLAG(F_SF); - SET_FLAG(F_PF); - } else { - res = 0; - CLEAR_FLAG(F_CF); - SET_FLAG(F_ZF); - CLEAR_FLAG(F_SF); - CLEAR_FLAG(F_PF); - } - } - return (u8)res; -} - -/**************************************************************************** -REMARKS: -Implements the SAR instruction and side effects. -****************************************************************************/ -u16 sar_word(u16 d, u8 s) -{ - unsigned int cnt, res, cf, mask, sf; - - sf = d & 0x8000; - cnt = s % 16; - res = d; - if (cnt > 0 && cnt < 16) { - mask = (1 << (16 - cnt)) - 1; - cf = d & (1 << (cnt - 1)); - res = (d >> cnt) & mask; - CONDITIONAL_SET_FLAG(cf, F_CF); - if (sf) { - res |= ~mask; - } - CONDITIONAL_SET_FLAG((res & 0xffff) == 0, F_ZF); - CONDITIONAL_SET_FLAG(res & 0x8000, F_SF); - CONDITIONAL_SET_FLAG(PARITY(res & 0xff), F_PF); - } else if (cnt >= 16) { - if (sf) { - res = 0xffff; - SET_FLAG(F_CF); - CLEAR_FLAG(F_ZF); - SET_FLAG(F_SF); - SET_FLAG(F_PF); - } else { - res = 0; - CLEAR_FLAG(F_CF); - SET_FLAG(F_ZF); - CLEAR_FLAG(F_SF); - CLEAR_FLAG(F_PF); - } - } - return (u16)res; -} - -/**************************************************************************** -REMARKS: -Implements the SAR instruction and side effects. -****************************************************************************/ -u32 sar_long(u32 d, u8 s) -{ - u32 cnt, res, cf, mask, sf; - - sf = d & 0x80000000; - cnt = s % 32; - res = d; - if (cnt > 0 && cnt < 32) { - mask = (1 << (32 - cnt)) - 1; - cf = d & (1 << (cnt - 1)); - res = (d >> cnt) & mask; - CONDITIONAL_SET_FLAG(cf, F_CF); - if (sf) { - res |= ~mask; - } - CONDITIONAL_SET_FLAG((res & 0xffffffff) == 0, F_ZF); - CONDITIONAL_SET_FLAG(res & 0x80000000, F_SF); - CONDITIONAL_SET_FLAG(PARITY(res & 0xff), F_PF); - } else if (cnt >= 32) { - if (sf) { - res = 0xffffffff; - SET_FLAG(F_CF); - CLEAR_FLAG(F_ZF); - SET_FLAG(F_SF); - SET_FLAG(F_PF); - } else { - res = 0; - CLEAR_FLAG(F_CF); - SET_FLAG(F_ZF); - CLEAR_FLAG(F_SF); - CLEAR_FLAG(F_PF); - } - } - return res; -} - -/**************************************************************************** -REMARKS: -Implements the SHLD instruction and side effects. -****************************************************************************/ -u16 shld_word (u16 d, u16 fill, u8 s) -{ - unsigned int cnt, res, cf; - - if (s < 16) { - cnt = s % 16; - if (cnt > 0) { - res = (d << cnt) | (fill >> (16-cnt)); - cf = d & (1 << (16 - cnt)); - CONDITIONAL_SET_FLAG(cf, F_CF); - CONDITIONAL_SET_FLAG((res & 0xffff) == 0, F_ZF); - CONDITIONAL_SET_FLAG(res & 0x8000, F_SF); - CONDITIONAL_SET_FLAG(PARITY(res & 0xff), F_PF); - } else { - res = d; - } - if (cnt == 1) { - CONDITIONAL_SET_FLAG((((res & 0x8000) == 0x8000) ^ - (ACCESS_FLAG(F_CF) != 0)), F_OF); - } else { - CLEAR_FLAG(F_OF); - } - } else { - res = 0; - CONDITIONAL_SET_FLAG((d << (s-1)) & 0x8000, F_CF); - CLEAR_FLAG(F_OF); - CLEAR_FLAG(F_SF); - SET_FLAG(F_PF); - SET_FLAG(F_ZF); - } - return (u16)res; -} - -/**************************************************************************** -REMARKS: -Implements the SHLD instruction and side effects. -****************************************************************************/ -u32 shld_long (u32 d, u32 fill, u8 s) -{ - unsigned int cnt, res, cf; - - if (s < 32) { - cnt = s % 32; - if (cnt > 0) { - res = (d << cnt) | (fill >> (32-cnt)); - cf = d & (1 << (32 - cnt)); - CONDITIONAL_SET_FLAG(cf, F_CF); - CONDITIONAL_SET_FLAG((res & 0xffffffff) == 0, F_ZF); - CONDITIONAL_SET_FLAG(res & 0x80000000, F_SF); - CONDITIONAL_SET_FLAG(PARITY(res & 0xff), F_PF); - } else { - res = d; - } - if (cnt == 1) { - CONDITIONAL_SET_FLAG((((res & 0x80000000) == 0x80000000) ^ - (ACCESS_FLAG(F_CF) != 0)), F_OF); - } else { - CLEAR_FLAG(F_OF); - } - } else { - res = 0; - CONDITIONAL_SET_FLAG((d << (s-1)) & 0x80000000, F_CF); - CLEAR_FLAG(F_OF); - CLEAR_FLAG(F_SF); - SET_FLAG(F_PF); - SET_FLAG(F_ZF); - } - return res; -} - -/**************************************************************************** -REMARKS: -Implements the SHRD instruction and side effects. -****************************************************************************/ -u16 shrd_word (u16 d, u16 fill, u8 s) -{ - unsigned int cnt, res, cf; - - if (s < 16) { - cnt = s % 16; - if (cnt > 0) { - cf = d & (1 << (cnt - 1)); - res = (d >> cnt) | (fill << (16 - cnt)); - CONDITIONAL_SET_FLAG(cf, F_CF); - CONDITIONAL_SET_FLAG((res & 0xffff) == 0, F_ZF); - CONDITIONAL_SET_FLAG(res & 0x8000, F_SF); - CONDITIONAL_SET_FLAG(PARITY(res & 0xff), F_PF); - } else { - res = d; - } - - if (cnt == 1) { - CONDITIONAL_SET_FLAG(XOR2(res >> 14), F_OF); - } else { - CLEAR_FLAG(F_OF); - } - } else { - res = 0; - CLEAR_FLAG(F_CF); - CLEAR_FLAG(F_OF); - SET_FLAG(F_ZF); - CLEAR_FLAG(F_SF); - CLEAR_FLAG(F_PF); - } - return (u16)res; -} - -/**************************************************************************** -REMARKS: -Implements the SHRD instruction and side effects. -****************************************************************************/ -u32 shrd_long (u32 d, u32 fill, u8 s) -{ - unsigned int cnt, res, cf; - - if (s < 32) { - cnt = s % 32; - if (cnt > 0) { - cf = d & (1 << (cnt - 1)); - res = (d >> cnt) | (fill << (32 - cnt)); - CONDITIONAL_SET_FLAG(cf, F_CF); - CONDITIONAL_SET_FLAG((res & 0xffffffff) == 0, F_ZF); - CONDITIONAL_SET_FLAG(res & 0x80000000, F_SF); - CONDITIONAL_SET_FLAG(PARITY(res & 0xff), F_PF); - } else { - res = d; - } - if (cnt == 1) { - CONDITIONAL_SET_FLAG(XOR2(res >> 30), F_OF); - } else { - CLEAR_FLAG(F_OF); - } - } else { - res = 0; - CLEAR_FLAG(F_CF); - CLEAR_FLAG(F_OF); - SET_FLAG(F_ZF); - CLEAR_FLAG(F_SF); - CLEAR_FLAG(F_PF); - } - return res; -} - -/**************************************************************************** -REMARKS: -Implements the SBB instruction and side effects. -****************************************************************************/ -u8 sbb_byte(u8 d, u8 s) -{ - register u32 res; /* all operands in native machine order */ - register u32 bc; - - if (ACCESS_FLAG(F_CF)) - res = d - s - 1; - else - res = d - s; - CONDITIONAL_SET_FLAG(res & 0x80, F_SF); - CONDITIONAL_SET_FLAG((res & 0xff) == 0, F_ZF); - CONDITIONAL_SET_FLAG(PARITY(res & 0xff), F_PF); - - /* calculate the borrow chain. See note at top */ - bc = (res & (~d | s)) | (~d & s); - CONDITIONAL_SET_FLAG(bc & 0x80, F_CF); - CONDITIONAL_SET_FLAG(XOR2(bc >> 6), F_OF); - CONDITIONAL_SET_FLAG(bc & 0x8, F_AF); - return (u8)res; -} - -/**************************************************************************** -REMARKS: -Implements the SBB instruction and side effects. -****************************************************************************/ -u16 sbb_word(u16 d, u16 s) -{ - register u32 res; /* all operands in native machine order */ - register u32 bc; - - if (ACCESS_FLAG(F_CF)) - res = d - s - 1; - else - res = d - s; - CONDITIONAL_SET_FLAG(res & 0x8000, F_SF); - CONDITIONAL_SET_FLAG((res & 0xffff) == 0, F_ZF); - CONDITIONAL_SET_FLAG(PARITY(res & 0xff), F_PF); - - /* calculate the borrow chain. See note at top */ - bc = (res & (~d | s)) | (~d & s); - CONDITIONAL_SET_FLAG(bc & 0x8000, F_CF); - CONDITIONAL_SET_FLAG(XOR2(bc >> 14), F_OF); - CONDITIONAL_SET_FLAG(bc & 0x8, F_AF); - return (u16)res; -} - -/**************************************************************************** -REMARKS: -Implements the SBB instruction and side effects. -****************************************************************************/ -u32 sbb_long(u32 d, u32 s) -{ - register u32 res; /* all operands in native machine order */ - register u32 bc; - - if (ACCESS_FLAG(F_CF)) - res = d - s - 1; - else - res = d - s; - CONDITIONAL_SET_FLAG(res & 0x80000000, F_SF); - CONDITIONAL_SET_FLAG((res & 0xffffffff) == 0, F_ZF); - CONDITIONAL_SET_FLAG(PARITY(res & 0xff), F_PF); - - /* calculate the borrow chain. See note at top */ - bc = (res & (~d | s)) | (~d & s); - CONDITIONAL_SET_FLAG(bc & 0x80000000, F_CF); - CONDITIONAL_SET_FLAG(XOR2(bc >> 30), F_OF); - CONDITIONAL_SET_FLAG(bc & 0x8, F_AF); - return res; -} - -/**************************************************************************** -REMARKS: -Implements the SUB instruction and side effects. -****************************************************************************/ -u8 sub_byte(u8 d, u8 s) -{ - register u32 res; /* all operands in native machine order */ - register u32 bc; - - res = d - s; - CONDITIONAL_SET_FLAG(res & 0x80, F_SF); - CONDITIONAL_SET_FLAG((res & 0xff) == 0, F_ZF); - CONDITIONAL_SET_FLAG(PARITY(res & 0xff), F_PF); - - /* calculate the borrow chain. See note at top */ - bc = (res & (~d | s)) | (~d & s); - CONDITIONAL_SET_FLAG(bc & 0x80, F_CF); - CONDITIONAL_SET_FLAG(XOR2(bc >> 6), F_OF); - CONDITIONAL_SET_FLAG(bc & 0x8, F_AF); - return (u8)res; -} - -/**************************************************************************** -REMARKS: -Implements the SUB instruction and side effects. -****************************************************************************/ -u16 sub_word(u16 d, u16 s) -{ - register u32 res; /* all operands in native machine order */ - register u32 bc; - - res = d - s; - CONDITIONAL_SET_FLAG(res & 0x8000, F_SF); - CONDITIONAL_SET_FLAG((res & 0xffff) == 0, F_ZF); - CONDITIONAL_SET_FLAG(PARITY(res & 0xff), F_PF); - - /* calculate the borrow chain. See note at top */ - bc = (res & (~d | s)) | (~d & s); - CONDITIONAL_SET_FLAG(bc & 0x8000, F_CF); - CONDITIONAL_SET_FLAG(XOR2(bc >> 14), F_OF); - CONDITIONAL_SET_FLAG(bc & 0x8, F_AF); - return (u16)res; -} - -/**************************************************************************** -REMARKS: -Implements the SUB instruction and side effects. -****************************************************************************/ -u32 sub_long(u32 d, u32 s) -{ - register u32 res; /* all operands in native machine order */ - register u32 bc; - - res = d - s; - CONDITIONAL_SET_FLAG(res & 0x80000000, F_SF); - CONDITIONAL_SET_FLAG((res & 0xffffffff) == 0, F_ZF); - CONDITIONAL_SET_FLAG(PARITY(res & 0xff), F_PF); - - /* calculate the borrow chain. See note at top */ - bc = (res & (~d | s)) | (~d & s); - CONDITIONAL_SET_FLAG(bc & 0x80000000, F_CF); - CONDITIONAL_SET_FLAG(XOR2(bc >> 30), F_OF); - CONDITIONAL_SET_FLAG(bc & 0x8, F_AF); - return res; -} - -/**************************************************************************** -REMARKS: -Implements the TEST instruction and side effects. -****************************************************************************/ -void test_byte(u8 d, u8 s) -{ - register u32 res; /* all operands in native machine order */ - - res = d & s; - - CLEAR_FLAG(F_OF); - CONDITIONAL_SET_FLAG(res & 0x80, F_SF); - CONDITIONAL_SET_FLAG(res == 0, F_ZF); - CONDITIONAL_SET_FLAG(PARITY(res & 0xff), F_PF); - /* AF == dont care */ - CLEAR_FLAG(F_CF); -} - -/**************************************************************************** -REMARKS: -Implements the TEST instruction and side effects. -****************************************************************************/ -void test_word(u16 d, u16 s) -{ - register u32 res; /* all operands in native machine order */ - - res = d & s; - - CLEAR_FLAG(F_OF); - CONDITIONAL_SET_FLAG(res & 0x8000, F_SF); - CONDITIONAL_SET_FLAG(res == 0, F_ZF); - CONDITIONAL_SET_FLAG(PARITY(res & 0xff), F_PF); - /* AF == dont care */ - CLEAR_FLAG(F_CF); -} - -/**************************************************************************** -REMARKS: -Implements the TEST instruction and side effects. -****************************************************************************/ -void test_long(u32 d, u32 s) -{ - register u32 res; /* all operands in native machine order */ - - res = d & s; - - CLEAR_FLAG(F_OF); - CONDITIONAL_SET_FLAG(res & 0x80000000, F_SF); - CONDITIONAL_SET_FLAG(res == 0, F_ZF); - CONDITIONAL_SET_FLAG(PARITY(res & 0xff), F_PF); - /* AF == dont care */ - CLEAR_FLAG(F_CF); -} - -/**************************************************************************** -REMARKS: -Implements the XOR instruction and side effects. -****************************************************************************/ -u8 xor_byte(u8 d, u8 s) -{ - register u8 res; /* all operands in native machine order */ - - res = d ^ s; - CLEAR_FLAG(F_OF); - CONDITIONAL_SET_FLAG(res & 0x80, F_SF); - CONDITIONAL_SET_FLAG(res == 0, F_ZF); - CONDITIONAL_SET_FLAG(PARITY(res), F_PF); - CLEAR_FLAG(F_CF); - CLEAR_FLAG(F_AF); - return res; -} - -/**************************************************************************** -REMARKS: -Implements the XOR instruction and side effects. -****************************************************************************/ -u16 xor_word(u16 d, u16 s) -{ - register u16 res; /* all operands in native machine order */ - - res = d ^ s; - CLEAR_FLAG(F_OF); - CONDITIONAL_SET_FLAG(res & 0x8000, F_SF); - CONDITIONAL_SET_FLAG(res == 0, F_ZF); - CONDITIONAL_SET_FLAG(PARITY(res & 0xff), F_PF); - CLEAR_FLAG(F_CF); - CLEAR_FLAG(F_AF); - return res; -} - -/**************************************************************************** -REMARKS: -Implements the XOR instruction and side effects. -****************************************************************************/ -u32 xor_long(u32 d, u32 s) -{ - register u32 res; /* all operands in native machine order */ - - res = d ^ s; - CLEAR_FLAG(F_OF); - CONDITIONAL_SET_FLAG(res & 0x80000000, F_SF); - CONDITIONAL_SET_FLAG(res == 0, F_ZF); - CONDITIONAL_SET_FLAG(PARITY(res & 0xff), F_PF); - CLEAR_FLAG(F_CF); - CLEAR_FLAG(F_AF); - return res; -} - -/**************************************************************************** -REMARKS: -Implements the IMUL instruction and side effects. -****************************************************************************/ -void imul_byte(u8 s) -{ - s16 res = (s16)((s8)M.x86.R_AL * (s8)s); - - M.x86.R_AX = res; - if (((M.x86.R_AL & 0x80) == 0 && M.x86.R_AH == 0x00) || - ((M.x86.R_AL & 0x80) != 0 && M.x86.R_AH == 0xFF)) { - CLEAR_FLAG(F_CF); - CLEAR_FLAG(F_OF); - } else { - SET_FLAG(F_CF); - SET_FLAG(F_OF); - } -} - -/**************************************************************************** -REMARKS: -Implements the IMUL instruction and side effects. -****************************************************************************/ -void imul_word(u16 s) -{ - s32 res = (s16)M.x86.R_AX * (s16)s; - - M.x86.R_AX = (u16)res; - M.x86.R_DX = (u16)(res >> 16); - if (((M.x86.R_AX & 0x8000) == 0 && M.x86.R_DX == 0x00) || - ((M.x86.R_AX & 0x8000) != 0 && M.x86.R_DX == 0xFF)) { - CLEAR_FLAG(F_CF); - CLEAR_FLAG(F_OF); - } else { - SET_FLAG(F_CF); - SET_FLAG(F_OF); - } -} - -/**************************************************************************** -REMARKS: -Implements the IMUL instruction and side effects. -****************************************************************************/ -void imul_long_direct(u32 *res_lo, u32* res_hi,u32 d, u32 s) -{ -#ifdef __HAS_LONG_LONG__ - s64 res = (s64)(s32)d * (s32)s; - - *res_lo = (u32)res; - *res_hi = (u32)(res >> 32); -#else - u32 d_lo,d_hi,d_sign; - u32 s_lo,s_hi,s_sign; - u32 rlo_lo,rlo_hi,rhi_lo; - - if ((d_sign = d & 0x80000000) != 0) - d = -d; - d_lo = d & 0xFFFF; - d_hi = d >> 16; - if ((s_sign = s & 0x80000000) != 0) - s = -s; - s_lo = s & 0xFFFF; - s_hi = s >> 16; - rlo_lo = d_lo * s_lo; - rlo_hi = (d_hi * s_lo + d_lo * s_hi) + (rlo_lo >> 16); - rhi_lo = d_hi * s_hi + (rlo_hi >> 16); - *res_lo = (rlo_hi << 16) | (rlo_lo & 0xFFFF); - *res_hi = rhi_lo; - if (d_sign != s_sign) { - d = ~*res_lo; - s = (((d & 0xFFFF) + 1) >> 16) + (d >> 16); - *res_lo = ~*res_lo+1; - *res_hi = ~*res_hi+(s >> 16); - } -#endif -} - -/**************************************************************************** -REMARKS: -Implements the IMUL instruction and side effects. -****************************************************************************/ -void imul_long(u32 s) -{ - imul_long_direct(&M.x86.R_EAX,&M.x86.R_EDX,M.x86.R_EAX,s); - if (((M.x86.R_EAX & 0x80000000) == 0 && M.x86.R_EDX == 0x00) || - ((M.x86.R_EAX & 0x80000000) != 0 && M.x86.R_EDX == 0xFF)) { - CLEAR_FLAG(F_CF); - CLEAR_FLAG(F_OF); - } else { - SET_FLAG(F_CF); - SET_FLAG(F_OF); - } -} - -/**************************************************************************** -REMARKS: -Implements the MUL instruction and side effects. -****************************************************************************/ -void mul_byte(u8 s) -{ - u16 res = (u16)(M.x86.R_AL * s); - - M.x86.R_AX = res; - if (M.x86.R_AH == 0) { - CLEAR_FLAG(F_CF); - CLEAR_FLAG(F_OF); - } else { - SET_FLAG(F_CF); - SET_FLAG(F_OF); - } -} - -/**************************************************************************** -REMARKS: -Implements the MUL instruction and side effects. -****************************************************************************/ -void mul_word(u16 s) -{ - u32 res = M.x86.R_AX * s; - - M.x86.R_AX = (u16)res; - M.x86.R_DX = (u16)(res >> 16); - if (M.x86.R_DX == 0) { - CLEAR_FLAG(F_CF); - CLEAR_FLAG(F_OF); - } else { - SET_FLAG(F_CF); - SET_FLAG(F_OF); - } -} - -/**************************************************************************** -REMARKS: -Implements the MUL instruction and side effects. -****************************************************************************/ -void mul_long(u32 s) -{ -#ifdef __HAS_LONG_LONG__ - u64 res = (u64)M.x86.R_EAX * s; - - M.x86.R_EAX = (u32)res; - M.x86.R_EDX = (u32)(res >> 32); -#else - u32 a,a_lo,a_hi; - u32 s_lo,s_hi; - u32 rlo_lo,rlo_hi,rhi_lo; - - a = M.x86.R_EAX; - a_lo = a & 0xFFFF; - a_hi = a >> 16; - s_lo = s & 0xFFFF; - s_hi = s >> 16; - rlo_lo = a_lo * s_lo; - rlo_hi = (a_hi * s_lo + a_lo * s_hi) + (rlo_lo >> 16); - rhi_lo = a_hi * s_hi + (rlo_hi >> 16); - M.x86.R_EAX = (rlo_hi << 16) | (rlo_lo & 0xFFFF); - M.x86.R_EDX = rhi_lo; -#endif - - if (M.x86.R_EDX == 0) { - CLEAR_FLAG(F_CF); - CLEAR_FLAG(F_OF); - } else { - SET_FLAG(F_CF); - SET_FLAG(F_OF); - } -} - -/**************************************************************************** -REMARKS: -Implements the IDIV instruction and side effects. -****************************************************************************/ -void idiv_byte(u8 s) -{ - s32 dvd, div, mod; - - dvd = (s16)M.x86.R_AX; - if (s == 0) { - x86emu_intr_raise(0); - return; - } - div = dvd / (s8)s; - mod = dvd % (s8)s; - if (abs(div) > 0x7f) { - x86emu_intr_raise(0); - return; - } - M.x86.R_AL = (s8) div; - M.x86.R_AH = (s8) mod; -} - -/**************************************************************************** -REMARKS: -Implements the IDIV instruction and side effects. -****************************************************************************/ -void idiv_word(u16 s) -{ - s32 dvd, div, mod; - - dvd = (((s32)M.x86.R_DX) << 16) | M.x86.R_AX; - if (s == 0) { - x86emu_intr_raise(0); - return; - } - div = dvd / (s16)s; - mod = dvd % (s16)s; - if (abs(div) > 0x7fff) { - x86emu_intr_raise(0); - return; - } - CLEAR_FLAG(F_CF); - CLEAR_FLAG(F_SF); - CONDITIONAL_SET_FLAG(div == 0, F_ZF); - CONDITIONAL_SET_FLAG(PARITY(mod & 0xff), F_PF); - - M.x86.R_AX = (u16)div; - M.x86.R_DX = (u16)mod; -} - -/**************************************************************************** -REMARKS: -Implements the IDIV instruction and side effects. -****************************************************************************/ -void idiv_long(u32 s) -{ -#ifdef __HAS_LONG_LONG__ - s64 dvd, div, mod; - - dvd = (((s64)M.x86.R_EDX) << 32) | M.x86.R_EAX; - if (s == 0) { - x86emu_intr_raise(0); - return; - } - div = dvd / (s32)s; - mod = dvd % (s32)s; - if (abs(div) > 0x7fffffff) { - x86emu_intr_raise(0); - return; - } -#else - s32 div = 0, mod; - s32 h_dvd = M.x86.R_EDX; - u32 l_dvd = M.x86.R_EAX; - u32 abs_s = s & 0x7FFFFFFF; - u32 abs_h_dvd = h_dvd & 0x7FFFFFFF; - u32 h_s = abs_s >> 1; - u32 l_s = abs_s << 31; - int counter = 31; - int carry; - - if (s == 0) { - x86emu_intr_raise(0); - return; - } - do { - div <<= 1; - carry = (l_dvd >= l_s) ? 0 : 1; - - if (abs_h_dvd < (h_s + carry)) { - h_s >>= 1; - l_s = abs_s << (--counter); - continue; - } else { - abs_h_dvd -= (h_s + carry); - l_dvd = carry ? ((0xFFFFFFFF - l_s) + l_dvd + 1) - : (l_dvd - l_s); - h_s >>= 1; - l_s = abs_s << (--counter); - div |= 1; - continue; - } - - } while (counter > -1); - /* overflow */ - if (abs_h_dvd || (l_dvd > abs_s)) { - x86emu_intr_raise(0); - return; - } - /* sign */ - div |= ((h_dvd & 0x10000000) ^ (s & 0x10000000)); - mod = l_dvd; - -#endif - CLEAR_FLAG(F_CF); - CLEAR_FLAG(F_AF); - CLEAR_FLAG(F_SF); - SET_FLAG(F_ZF); - CONDITIONAL_SET_FLAG(PARITY(mod & 0xff), F_PF); - - M.x86.R_EAX = (u32)div; - M.x86.R_EDX = (u32)mod; -} - -/**************************************************************************** -REMARKS: -Implements the DIV instruction and side effects. -****************************************************************************/ -void div_byte(u8 s) -{ - u32 dvd, div, mod; - - dvd = M.x86.R_AX; - if (s == 0) { - x86emu_intr_raise(0); - return; - } - div = dvd / (u8)s; - mod = dvd % (u8)s; - if (abs(div) > 0xff) { - x86emu_intr_raise(0); - return; - } - M.x86.R_AL = (u8)div; - M.x86.R_AH = (u8)mod; -} - -/**************************************************************************** -REMARKS: -Implements the DIV instruction and side effects. -****************************************************************************/ -void div_word(u16 s) -{ - u32 dvd, div, mod; - - dvd = (((u32)M.x86.R_DX) << 16) | M.x86.R_AX; - if (s == 0) { - x86emu_intr_raise(0); - return; - } - div = dvd / (u16)s; - mod = dvd % (u16)s; - if (abs(div) > 0xffff) { - x86emu_intr_raise(0); - return; - } - CLEAR_FLAG(F_CF); - CLEAR_FLAG(F_SF); - CONDITIONAL_SET_FLAG(div == 0, F_ZF); - CONDITIONAL_SET_FLAG(PARITY(mod & 0xff), F_PF); - - M.x86.R_AX = (u16)div; - M.x86.R_DX = (u16)mod; -} - -/**************************************************************************** -REMARKS: -Implements the DIV instruction and side effects. -****************************************************************************/ -void div_long(u32 s) -{ -#ifdef __HAS_LONG_LONG__ - u64 dvd, div, mod; - - dvd = (((u64)M.x86.R_EDX) << 32) | M.x86.R_EAX; - if (s == 0) { - x86emu_intr_raise(0); - return; - } - div = dvd / (u32)s; - mod = dvd % (u32)s; - if (abs(div) > 0xffffffff) { - x86emu_intr_raise(0); - return; - } -#else - s32 div = 0, mod; - s32 h_dvd = M.x86.R_EDX; - u32 l_dvd = M.x86.R_EAX; - - u32 h_s = s; - u32 l_s = 0; - int counter = 32; - int carry; - - if (s == 0) { - x86emu_intr_raise(0); - return; - } - do { - div <<= 1; - carry = (l_dvd >= l_s) ? 0 : 1; - - if (h_dvd < (h_s + carry)) { - h_s >>= 1; - l_s = s << (--counter); - continue; - } else { - h_dvd -= (h_s + carry); - l_dvd = carry ? ((0xFFFFFFFF - l_s) + l_dvd + 1) - : (l_dvd - l_s); - h_s >>= 1; - l_s = s << (--counter); - div |= 1; - continue; - } - - } while (counter > -1); - /* overflow */ - if (h_dvd || (l_dvd > s)) { - x86emu_intr_raise(0); - return; - } - mod = l_dvd; -#endif - CLEAR_FLAG(F_CF); - CLEAR_FLAG(F_AF); - CLEAR_FLAG(F_SF); - SET_FLAG(F_ZF); - CONDITIONAL_SET_FLAG(PARITY(mod & 0xff), F_PF); - - M.x86.R_EAX = (u32)div; - M.x86.R_EDX = (u32)mod; -} - -/**************************************************************************** -REMARKS: -Implements the IN string instruction and side effects. -****************************************************************************/ -void ins(int size) -{ - int inc = size; - - if (ACCESS_FLAG(F_DF)) { - inc = -size; - } - if (M.x86.mode & (SYSMODE_PREFIX_REPE | SYSMODE_PREFIX_REPNE)) { - /* dont care whether REPE or REPNE */ - /* in until CX is ZERO. */ - u32 count = ((M.x86.mode & SYSMODE_PREFIX_DATA) ? - M.x86.R_ECX : M.x86.R_CX); - switch (size) { - case 1: - while (count--) { - store_data_byte_abs(M.x86.R_ES, M.x86.R_DI, - (*sys_inb)(M.x86.R_DX)); - M.x86.R_DI += inc; - } - break; - - case 2: - while (count--) { - store_data_word_abs(M.x86.R_ES, M.x86.R_DI, - (*sys_inw)(M.x86.R_DX)); - M.x86.R_DI += inc; - } - break; - case 4: - while (count--) { - store_data_long_abs(M.x86.R_ES, M.x86.R_DI, - (*sys_inl)(M.x86.R_DX)); - M.x86.R_DI += inc; - break; - } - } - M.x86.R_CX = 0; - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - M.x86.R_ECX = 0; - } - M.x86.mode &= ~(SYSMODE_PREFIX_REPE | SYSMODE_PREFIX_REPNE); - } else { - switch (size) { - case 1: - store_data_byte_abs(M.x86.R_ES, M.x86.R_DI, - (*sys_inb)(M.x86.R_DX)); - break; - case 2: - store_data_word_abs(M.x86.R_ES, M.x86.R_DI, - (*sys_inw)(M.x86.R_DX)); - break; - case 4: - store_data_long_abs(M.x86.R_ES, M.x86.R_DI, - (*sys_inl)(M.x86.R_DX)); - break; - } - M.x86.R_DI += inc; - } -} - -/**************************************************************************** -REMARKS: -Implements the OUT string instruction and side effects. -****************************************************************************/ -void outs(int size) -{ - int inc = size; - - if (ACCESS_FLAG(F_DF)) { - inc = -size; - } - if (M.x86.mode & (SYSMODE_PREFIX_REPE | SYSMODE_PREFIX_REPNE)) { - /* dont care whether REPE or REPNE */ - /* out until CX is ZERO. */ - u32 count = ((M.x86.mode & SYSMODE_PREFIX_DATA) ? - M.x86.R_ECX : M.x86.R_CX); - switch (size) { - case 1: - while (count--) { - (*sys_outb)(M.x86.R_DX, - fetch_data_byte_abs(M.x86.R_ES, M.x86.R_SI)); - M.x86.R_SI += inc; - } - break; - - case 2: - while (count--) { - (*sys_outw)(M.x86.R_DX, - fetch_data_word_abs(M.x86.R_ES, M.x86.R_SI)); - M.x86.R_SI += inc; - } - break; - case 4: - while (count--) { - (*sys_outl)(M.x86.R_DX, - fetch_data_long_abs(M.x86.R_ES, M.x86.R_SI)); - M.x86.R_SI += inc; - break; - } - } - M.x86.R_CX = 0; - if (M.x86.mode & SYSMODE_PREFIX_DATA) { - M.x86.R_ECX = 0; - } - M.x86.mode &= ~(SYSMODE_PREFIX_REPE | SYSMODE_PREFIX_REPNE); - } else { - switch (size) { - case 1: - (*sys_outb)(M.x86.R_DX, - fetch_data_byte_abs(M.x86.R_ES, M.x86.R_SI)); - break; - case 2: - (*sys_outw)(M.x86.R_DX, - fetch_data_word_abs(M.x86.R_ES, M.x86.R_SI)); - break; - case 4: - (*sys_outl)(M.x86.R_DX, - fetch_data_long_abs(M.x86.R_ES, M.x86.R_SI)); - break; - } - M.x86.R_SI += inc; - } -} - -/**************************************************************************** -PARAMETERS: -addr - Address to fetch word from - -REMARKS: -Fetches a word from emulator memory using an absolute address. -****************************************************************************/ -u16 mem_access_word(int addr) -{ -DB( if (CHECK_MEM_ACCESS()) - x86emu_check_mem_access(addr);) - return (*sys_rdw)(addr); -} - -/**************************************************************************** -REMARKS: -Pushes a word onto the stack. - -NOTE: Do not inline this, as (*sys_wrX) is already inline! -****************************************************************************/ -void push_word(u16 w) -{ -DB( if (CHECK_SP_ACCESS()) - x86emu_check_sp_access();) - M.x86.R_SP -= 2; - (*sys_wrw)(((u32)M.x86.R_SS << 4) + M.x86.R_SP, w); -} - -/**************************************************************************** -REMARKS: -Pushes a long onto the stack. - -NOTE: Do not inline this, as (*sys_wrX) is already inline! -****************************************************************************/ -void push_long(u32 w) -{ -DB( if (CHECK_SP_ACCESS()) - x86emu_check_sp_access();) - M.x86.R_SP -= 4; - (*sys_wrl)(((u32)M.x86.R_SS << 4) + M.x86.R_SP, w); -} - -/**************************************************************************** -REMARKS: -Pops a word from the stack. - -NOTE: Do not inline this, as (*sys_rdX) is already inline! -****************************************************************************/ -u16 pop_word(void) -{ - register u16 res; - -DB( if (CHECK_SP_ACCESS()) - x86emu_check_sp_access();) - res = (*sys_rdw)(((u32)M.x86.R_SS << 4) + M.x86.R_SP); - M.x86.R_SP += 2; - return res; -} - -/**************************************************************************** -REMARKS: -Pops a long from the stack. - -NOTE: Do not inline this, as (*sys_rdX) is already inline! -****************************************************************************/ -u32 pop_long(void) -{ - register u32 res; - -DB( if (CHECK_SP_ACCESS()) - x86emu_check_sp_access();) - res = (*sys_rdl)(((u32)M.x86.R_SS << 4) + M.x86.R_SP); - M.x86.R_SP += 4; - return res; -} - -/**************************************************************************** -REMARKS: -CPUID takes EAX/ECX as inputs, writes EAX/EBX/ECX/EDX as output -****************************************************************************/ -void cpuid (void) -{ - u32 feature = M.x86.R_EAX; - -#ifdef X86EMU_HAS_HW_CPUID - /* If the platform allows it, we will base our values on the real - * results from the CPUID instruction. We limit support to the - * first two features, and the results of those are sanitized. - */ - if (feature <= 1) - hw_cpuid(&M.x86.R_EAX, &M.x86.R_EBX, &M.x86.R_ECX, &M.x86.R_EDX); -#endif - - switch (feature) { - case 0: - /* Regardless if we have real data from the hardware, the emulator - * will only support upto feature 1, which we set in register EAX. - * Registers EBX:EDX:ECX contain a string identifying the CPU. - */ - M.x86.R_EAX = 1; -#ifndef X86EMU_HAS_HW_CPUID - /* EBX:EDX:ECX = "GenuineIntel" */ - M.x86.R_EBX = 0x756e6547; - M.x86.R_EDX = 0x49656e69; - M.x86.R_ECX = 0x6c65746e; -#endif - break; - case 1: -#ifndef X86EMU_HAS_HW_CPUID - /* If we don't have x86 compatible hardware, we return values from an - * Intel 486dx4; which was one of the first processors to have CPUID. - */ - M.x86.R_EAX = 0x00000480; - M.x86.R_EBX = 0x00000000; - M.x86.R_ECX = 0x00000000; - M.x86.R_EDX = 0x00000002; /* VME */ -#else - /* In the case that we have hardware CPUID instruction, we make sure - * that the features reported are limited to TSC and VME. - */ - M.x86.R_EDX &= 0x00000012; -#endif - break; - default: - /* Finally, we don't support any additional features. Most CPUs - * return all zeros when queried for invalid or unsupported feature - * numbers. - */ - M.x86.R_EAX = 0; - M.x86.R_EBX = 0; - M.x86.R_ECX = 0; - M.x86.R_EDX = 0; - break; - } -} - diff --git a/x86emu/sys.c b/x86emu/sys.c deleted file mode 100644 index e15fb09..0000000 --- a/x86emu/sys.c +++ /dev/null @@ -1,609 +0,0 @@ -/**************************************************************************** -* -* Realmode X86 Emulator Library -* -* Copyright (C) 1996-1999 SciTech Software, Inc. -* Copyright (C) David Mosberger-Tang -* Copyright (C) 1999 Egbert Eich -* -* ======================================================================== -* -* Permission to use, copy, modify, distribute, and sell this software and -* its documentation for any purpose is hereby granted without fee, -* provided that the above copyright notice appear in all copies and that -* both that copyright notice and this permission notice appear in -* supporting documentation, and that the name of the authors not be used -* in advertising or publicity pertaining to distribution of the software -* without specific, written prior permission. The authors makes no -* representations about the suitability of this software for any purpose. -* It is provided "as is" without express or implied warranty. -* -* THE AUTHORS DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, -* INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO -* EVENT SHALL THE AUTHORS BE LIABLE FOR ANY SPECIAL, INDIRECT OR -* CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF -* USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR -* OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR -* PERFORMANCE OF THIS SOFTWARE. -* -* ======================================================================== -* -* Language: ANSI C -* Environment: Any -* Developer: Kendall Bennett -* -* Description: This file includes subroutines which are related to -* programmed I/O and memory access. Included in this module -* are default functions with limited usefulness. For real -* uses these functions will most likely be overriden by the -* user library. -* -****************************************************************************/ - -#include "x86emu.h" -#include "x86emu/x86emui.h" -#include "x86emu/regs.h" -#include "x86emu/debug.h" -#include "x86emu/prim_ops.h" -#ifndef NO_SYS_HEADERS -#include -#endif -/*------------------------- Global Variables ------------------------------*/ - -X86EMU_sysEnv _X86EMU_env; /* Global emulator machine state */ -X86EMU_intrFuncs _X86EMU_intrTab[256]; - -/*----------------------------- Implementation ----------------------------*/ -#if defined(__alpha__) || defined(__alpha) -/* to cope with broken egcs-1.1.2 :-(((( */ - -#define ALPHA_UALOADS -/* - * inline functions to do unaligned accesses - * from linux/include/asm-alpha/unaligned.h - */ - -/* - * EGCS 1.1 knows about arbitrary unaligned loads. Define some - * packed structures to talk about such things with. - */ - -#if defined(__GNUC__) -struct __una_u64 { unsigned long x __attribute__((packed)); }; -struct __una_u32 { unsigned int x __attribute__((packed)); }; -struct __una_u16 { unsigned short x __attribute__((packed)); }; -#endif - -static __inline__ unsigned long ldq_u(unsigned long * r11) -{ -#if defined(__GNUC__) - const struct __una_u64 *ptr = (const struct __una_u64 *) r11; - return ptr->x; -#else - unsigned long r1,r2; - __asm__("ldq_u %0,%3\n\t" - "ldq_u %1,%4\n\t" - "extql %0,%2,%0\n\t" - "extqh %1,%2,%1" - :"=&r" (r1), "=&r" (r2) - :"r" (r11), - "m" (*r11), - "m" (*(const unsigned long *)(7+(char *) r11))); - return r1 | r2; -#endif -} - -static __inline__ unsigned long ldl_u(unsigned int * r11) -{ -#if defined(__GNUC__) - const struct __una_u32 *ptr = (const struct __una_u32 *) r11; - return ptr->x; -#else - unsigned long r1,r2; - __asm__("ldq_u %0,%3\n\t" - "ldq_u %1,%4\n\t" - "extll %0,%2,%0\n\t" - "extlh %1,%2,%1" - :"=&r" (r1), "=&r" (r2) - :"r" (r11), - "m" (*r11), - "m" (*(const unsigned long *)(3+(char *) r11))); - return r1 | r2; -#endif -} - -static __inline__ unsigned long ldw_u(unsigned short * r11) -{ -#if defined(__GNUC__) - const struct __una_u16 *ptr = (const struct __una_u16 *) r11; - return ptr->x; -#else - unsigned long r1,r2; - __asm__("ldq_u %0,%3\n\t" - "ldq_u %1,%4\n\t" - "extwl %0,%2,%0\n\t" - "extwh %1,%2,%1" - :"=&r" (r1), "=&r" (r2) - :"r" (r11), - "m" (*r11), - "m" (*(const unsigned long *)(1+(char *) r11))); - return r1 | r2; -#endif -} - -/* - * Elemental unaligned stores - */ - -static __inline__ void stq_u(unsigned long r5, unsigned long * r11) -{ -#if defined(__GNUC__) - struct __una_u64 *ptr = (struct __una_u64 *) r11; - ptr->x = r5; -#else - unsigned long r1,r2,r3,r4; - - __asm__("ldq_u %3,%1\n\t" - "ldq_u %2,%0\n\t" - "insqh %6,%7,%5\n\t" - "insql %6,%7,%4\n\t" - "mskqh %3,%7,%3\n\t" - "mskql %2,%7,%2\n\t" - "bis %3,%5,%3\n\t" - "bis %2,%4,%2\n\t" - "stq_u %3,%1\n\t" - "stq_u %2,%0" - :"=m" (*r11), - "=m" (*(unsigned long *)(7+(char *) r11)), - "=&r" (r1), "=&r" (r2), "=&r" (r3), "=&r" (r4) - :"r" (r5), "r" (r11)); -#endif -} - -static __inline__ void stl_u(unsigned long r5, unsigned int * r11) -{ -#if defined(__GNUC__) - struct __una_u32 *ptr = (struct __una_u32 *) r11; - ptr->x = r5; -#else - unsigned long r1,r2,r3,r4; - - __asm__("ldq_u %3,%1\n\t" - "ldq_u %2,%0\n\t" - "inslh %6,%7,%5\n\t" - "insll %6,%7,%4\n\t" - "msklh %3,%7,%3\n\t" - "mskll %2,%7,%2\n\t" - "bis %3,%5,%3\n\t" - "bis %2,%4,%2\n\t" - "stq_u %3,%1\n\t" - "stq_u %2,%0" - :"=m" (*r11), - "=m" (*(unsigned long *)(3+(char *) r11)), - "=&r" (r1), "=&r" (r2), "=&r" (r3), "=&r" (r4) - :"r" (r5), "r" (r11)); -#endif -} - -static __inline__ void stw_u(unsigned long r5, unsigned short * r11) -{ -#if defined(__GNUC__) - struct __una_u16 *ptr = (struct __una_u16 *) r11; - ptr->x = r5; -#else - unsigned long r1,r2,r3,r4; - - __asm__("ldq_u %3,%1\n\t" - "ldq_u %2,%0\n\t" - "inswh %6,%7,%5\n\t" - "inswl %6,%7,%4\n\t" - "mskwh %3,%7,%3\n\t" - "mskwl %2,%7,%2\n\t" - "bis %3,%5,%3\n\t" - "bis %2,%4,%2\n\t" - "stq_u %3,%1\n\t" - "stq_u %2,%0" - :"=m" (*r11), - "=m" (*(unsigned long *)(1+(char *) r11)), - "=&r" (r1), "=&r" (r2), "=&r" (r3), "=&r" (r4) - :"r" (r5), "r" (r11)); -#endif -} -#endif - -/**************************************************************************** -PARAMETERS: -addr - Emulator memory address to read - -RETURNS: -Byte value read from emulator memory. - -REMARKS: -Reads a byte value from the emulator memory. -****************************************************************************/ -u8 X86API rdb( - u32 addr) -{ - u8 val; - - if (addr > M.mem_size - 1) { - DB(printk("mem_read: address %#lx out of range!\n", addr);) - HALT_SYS(); - } - val = *(u8*)(M.mem_base + addr); -DB( if (DEBUG_MEM_TRACE()) - printk("%#08x 1 -> %#x\n", addr, val);) - return val; -} - -/**************************************************************************** -PARAMETERS: -addr - Emulator memory address to read - -RETURNS: -Word value read from emulator memory. - -REMARKS: -Reads a word value from the emulator memory. -****************************************************************************/ -u16 X86API rdw( - u32 addr) -{ - u16 val = 0; - - if (addr > M.mem_size - 2) { - DB(printk("mem_read: address %#lx out of range!\n", addr);) - HALT_SYS(); - } -#ifdef __BIG_ENDIAN__ - if (addr & 0x1) { - val = (*(u8*)(M.mem_base + addr) | - (*(u8*)(M.mem_base + addr + 1) << 8)); - } - else -#endif -#if defined(ALPHA_UALOADS) - val = ldw_u((u16*)(M.mem_base + addr)); -#elif defined(IA64_UALOADS) - val = uldw((u16*)(M.mem_base + addr)); -#else - val = *(u16*)(M.mem_base + addr); -#endif - DB( if (DEBUG_MEM_TRACE()) - printk("%#08x 2 -> %#x\n", addr, val);) - return val; -} - -/**************************************************************************** -PARAMETERS: -addr - Emulator memory address to read - -RETURNS: -Long value read from emulator memory. -REMARKS: -Reads a long value from the emulator memory. -****************************************************************************/ -u32 X86API rdl( - u32 addr) -{ - u32 val = 0; - - if (addr > M.mem_size - 4) { - DB(printk("mem_read: address %#lx out of range!\n", addr);) - HALT_SYS(); - } -#ifdef __BIG_ENDIAN__ - if (addr & 0x3) { - val = (*(u8*)(M.mem_base + addr + 0) | - (*(u8*)(M.mem_base + addr + 1) << 8) | - (*(u8*)(M.mem_base + addr + 2) << 16) | - (*(u8*)(M.mem_base + addr + 3) << 24)); - } - else -#endif -#if defined(ALPHA_UALOADS) - val = ldl_u((u32*)(M.mem_base + addr)); -#elif defined(IA64_UALOADS) - val = uldl((u32*)(M.mem_base + addr)); -#else - val = *(u32*)(M.mem_base + addr); -#endif -DB( if (DEBUG_MEM_TRACE()) - printk("%#08x 4 -> %#x\n", addr, val);) - return val; -} - -/**************************************************************************** -PARAMETERS: -addr - Emulator memory address to read -val - Value to store - -REMARKS: -Writes a byte value to emulator memory. -****************************************************************************/ -void X86API wrb( - u32 addr, - u8 val) -{ -DB( if (DEBUG_MEM_TRACE()) - printk("%#08x 1 <- %#x\n", addr, val);) - if (addr > M.mem_size - 1) { - DB(printk("mem_write: address %#lx out of range!\n", addr);) - HALT_SYS(); - } - *(u8*)(M.mem_base + addr) = val; -} - -/**************************************************************************** -PARAMETERS: -addr - Emulator memory address to read -val - Value to store - -REMARKS: -Writes a word value to emulator memory. -****************************************************************************/ -void X86API wrw( - u32 addr, - u16 val) -{ -DB( if (DEBUG_MEM_TRACE()) - printk("%#08x 2 <- %#x\n", addr, val);) - if (addr > M.mem_size - 2) { - DB(printk("mem_write: address %#lx out of range!\n", addr);) - HALT_SYS(); - } -#ifdef __BIG_ENDIAN__ - if (addr & 0x1) { - *(u8*)(M.mem_base + addr + 0) = (val >> 0) & 0xff; - *(u8*)(M.mem_base + addr + 1) = (val >> 8) & 0xff; - } - else -#endif -#if defined(ALPHA_UALOADS) - stw_u(val,(u16*)(M.mem_base + addr)); -#elif defined(IA64_UALOADS) - ustw(val,(u16*)(M.mem_base + addr)); -#else - *(u16*)(M.mem_base + addr) = val; -#endif -} - -/**************************************************************************** -PARAMETERS: -addr - Emulator memory address to read -val - Value to store - -REMARKS: -Writes a long value to emulator memory. -****************************************************************************/ -void X86API wrl( - u32 addr, - u32 val) -{ -DB( if (DEBUG_MEM_TRACE()) - printk("%#08x 4 <- %#x\n", addr, val);) - if (addr > M.mem_size - 4) { - DB(printk("mem_write: address %#lx out of range!\n", addr);) - HALT_SYS(); - } -#ifdef __BIG_ENDIAN__ - if (addr & 0x1) { - *(u8*)(M.mem_base + addr + 0) = (val >> 0) & 0xff; - *(u8*)(M.mem_base + addr + 1) = (val >> 8) & 0xff; - *(u8*)(M.mem_base + addr + 2) = (val >> 16) & 0xff; - *(u8*)(M.mem_base + addr + 3) = (val >> 24) & 0xff; - } - else -#endif -#if defined(ALPHA_UALOADS) - stl_u(val,(u32*)(M.mem_base + addr)); -#elif defined(IA64_UALOADS) - ustl(val,(u32*)(M.mem_base + addr)); -#else - *(u32*)(M.mem_base + addr) = val; -#endif -} - -/**************************************************************************** -PARAMETERS: -addr - PIO address to read -RETURN: -0 -REMARKS: -Default PIO byte read function. Doesn't perform real inb. -****************************************************************************/ -static u8 X86API p_inb( - X86EMU_pioAddr addr) -{ -DB( if (DEBUG_IO_TRACE()) - printk("inb %#04x \n", addr);) - return 0; -} - -/**************************************************************************** -PARAMETERS: -addr - PIO address to read -RETURN: -0 -REMARKS: -Default PIO word read function. Doesn't perform real inw. -****************************************************************************/ -static u16 X86API p_inw( - X86EMU_pioAddr addr) -{ -DB( if (DEBUG_IO_TRACE()) - printk("inw %#04x \n", addr);) - return 0; -} - -/**************************************************************************** -PARAMETERS: -addr - PIO address to read -RETURN: -0 -REMARKS: -Default PIO long read function. Doesn't perform real inl. -****************************************************************************/ -static u32 X86API p_inl( - X86EMU_pioAddr addr) -{ -DB( if (DEBUG_IO_TRACE()) - printk("inl %#04x \n", addr);) - return 0; -} - -/**************************************************************************** -PARAMETERS: -addr - PIO address to write -val - Value to store -REMARKS: -Default PIO byte write function. Doesn't perform real outb. -****************************************************************************/ -static void X86API p_outb( - X86EMU_pioAddr addr, - u8 val) -{ -DB( if (DEBUG_IO_TRACE()) - printk("outb %#02x -> %#04x \n", val, addr);) - return; -} - -/**************************************************************************** -PARAMETERS: -addr - PIO address to write -val - Value to store -REMARKS: -Default PIO word write function. Doesn't perform real outw. -****************************************************************************/ -static void X86API p_outw( - X86EMU_pioAddr addr, - u16 val) -{ -DB( if (DEBUG_IO_TRACE()) - printk("outw %#04x -> %#04x \n", val, addr);) - return; -} - -/**************************************************************************** -PARAMETERS: -addr - PIO address to write -val - Value to store -REMARKS: -Default PIO ;ong write function. Doesn't perform real outl. -****************************************************************************/ -static void X86API p_outl( - X86EMU_pioAddr addr, - u32 val) -{ -DB( if (DEBUG_IO_TRACE()) - printk("outl %#08x -> %#04x \n", val, addr);) - return; -} - -/*------------------------- Global Variables ------------------------------*/ - -u8 (X86APIP sys_rdb)(u32 addr) = rdb; -u16 (X86APIP sys_rdw)(u32 addr) = rdw; -u32 (X86APIP sys_rdl)(u32 addr) = rdl; -void (X86APIP sys_wrb)(u32 addr,u8 val) = wrb; -void (X86APIP sys_wrw)(u32 addr,u16 val) = wrw; -void (X86APIP sys_wrl)(u32 addr,u32 val) = wrl; -u8 (X86APIP sys_inb)(X86EMU_pioAddr addr) = p_inb; -u16 (X86APIP sys_inw)(X86EMU_pioAddr addr) = p_inw; -u32 (X86APIP sys_inl)(X86EMU_pioAddr addr) = p_inl; -void (X86APIP sys_outb)(X86EMU_pioAddr addr, u8 val) = p_outb; -void (X86APIP sys_outw)(X86EMU_pioAddr addr, u16 val) = p_outw; -void (X86APIP sys_outl)(X86EMU_pioAddr addr, u32 val) = p_outl; - -/*----------------------------- Setup -------------------------------------*/ - -/**************************************************************************** -PARAMETERS: -funcs - New memory function pointers to make active - -REMARKS: -This function is used to set the pointers to functions which access -memory space, allowing the user application to override these functions -and hook them out as necessary for their application. -****************************************************************************/ -void X86EMU_setupMemFuncs( - X86EMU_memFuncs *funcs) -{ - sys_rdb = funcs->rdb; - sys_rdw = funcs->rdw; - sys_rdl = funcs->rdl; - sys_wrb = funcs->wrb; - sys_wrw = funcs->wrw; - sys_wrl = funcs->wrl; -} - -/**************************************************************************** -PARAMETERS: -funcs - New programmed I/O function pointers to make active - -REMARKS: -This function is used to set the pointers to functions which access -I/O space, allowing the user application to override these functions -and hook them out as necessary for their application. -****************************************************************************/ -void X86EMU_setupPioFuncs( - X86EMU_pioFuncs *funcs) -{ - sys_inb = funcs->inb; - sys_inw = funcs->inw; - sys_inl = funcs->inl; - sys_outb = funcs->outb; - sys_outw = funcs->outw; - sys_outl = funcs->outl; -} - -/**************************************************************************** -PARAMETERS: -funcs - New interrupt vector table to make active - -REMARKS: -This function is used to set the pointers to functions which handle -interrupt processing in the emulator, allowing the user application to -hook interrupts as necessary for their application. Any interrupts that -are not hooked by the user application, and reflected and handled internally -in the emulator via the interrupt vector table. This allows the application -to get control when the code being emulated executes specific software -interrupts. -****************************************************************************/ -void X86EMU_setupIntrFuncs( - X86EMU_intrFuncs funcs[]) -{ - int i; - - for (i=0; i < 256; i++) - _X86EMU_intrTab[i] = NULL; - if (funcs) { - for (i = 0; i < 256; i++) - _X86EMU_intrTab[i] = funcs[i]; - } -} - -/**************************************************************************** -PARAMETERS: -int - New software interrupt to prepare for - -REMARKS: -This function is used to set up the emulator state to exceute a software -interrupt. This can be used by the user application code to allow an -interrupt to be hooked, examined and then reflected back to the emulator -so that the code in the emulator will continue processing the software -interrupt as per normal. This essentially allows system code to actively -hook and handle certain software interrupts as necessary. -****************************************************************************/ -void X86EMU_prepareForInt( - int num) -{ - push_word((u16)M.x86.R_FLG); - CLEAR_FLAG(F_IF); - CLEAR_FLAG(F_TF); - push_word(M.x86.R_CS); - M.x86.R_CS = mem_access_word(num * 4 + 2); - push_word(M.x86.R_IP); - M.x86.R_IP = mem_access_word(num * 4); - M.x86.intr = 0; -} diff --git a/x86emu/validate.c b/x86emu/validate.c deleted file mode 100644 index 239f6c1..0000000 --- a/x86emu/validate.c +++ /dev/null @@ -1,765 +0,0 @@ -/**************************************************************************** -* -* Realmode X86 Emulator Library -* -* Copyright (C) 1996-1999 SciTech Software, Inc. -* Copyright (C) David Mosberger-Tang -* Copyright (C) 1999 Egbert Eich -* -* ======================================================================== -* -* Permission to use, copy, modify, distribute, and sell this software and -* its documentation for any purpose is hereby granted without fee, -* provided that the above copyright notice appear in all copies and that -* both that copyright notice and this permission notice appear in -* supporting documentation, and that the name of the authors not be used -* in advertising or publicity pertaining to distribution of the software -* without specific, written prior permission. The authors makes no -* representations about the suitability of this software for any purpose. -* It is provided "as is" without express or implied warranty. -* -* THE AUTHORS DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, -* INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO -* EVENT SHALL THE AUTHORS BE LIABLE FOR ANY SPECIAL, INDIRECT OR -* CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF -* USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR -* OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR -* PERFORMANCE OF THIS SOFTWARE. -* -* ======================================================================== -* -* Language: Watcom C 10.6 or later -* Environment: 32-bit DOS -* Developer: Kendall Bennett -* -* Description: Program to validate the x86 emulator library for -* correctness. We run the emulator primitive operations -* functions against the real x86 CPU, and compare the result -* and flags to ensure correctness. -* -* We use inline assembler to compile and build this program. -* -****************************************************************************/ - -#include -#include -#include -#include -#include "x86emu.h" -#include "x86emu/prim_asm.h" - -/*-------------------------- Implementation -------------------------------*/ - -#define true 1 -#define false 0 - -#define ALL_FLAGS (F_CF | F_PF | F_AF | F_ZF | F_SF | F_OF) - -#define VAL_START_BINARY(parm_type,res_type,dmax,smax,dincr,sincr) \ -{ \ - parm_type d,s; \ - res_type r,r_asm; \ - ulong flags,inflags; \ - int f,failed = false; \ - char buf1[80],buf2[80]; \ - for (d = 0; d < dmax; d += dincr) { \ - for (s = 0; s < smax; s += sincr) { \ - M.x86.R_EFLG = inflags = flags = def_flags; \ - for (f = 0; f < 2; f++) { - -#define VAL_TEST_BINARY(name) \ - r_asm = name##_asm(&flags,d,s); \ - r = name(d,s); \ - if (r != r_asm || M.x86.R_EFLG != flags) \ - failed = true; \ - if (failed || trace) { - -#define VAL_TEST_BINARY_VOID(name) \ - name##_asm(&flags,d,s); \ - name(d,s); \ - r = r_asm = 0; \ - if (M.x86.R_EFLG != flags) \ - failed = true; \ - if (failed || trace) { - -#define VAL_FAIL_BYTE_BYTE_BINARY(name) \ - if (failed) \ - printk("fail\n"); \ - printk("0x%02X = %-15s(0x%02X,0x%02X), flags = %s -> %s\n", \ - r, #name, d, s, print_flags(buf1,inflags), print_flags(buf2,M.x86.R_EFLG)); \ - printk("0x%02X = %-15s(0x%02X,0x%02X), flags = %s -> %s\n", \ - r_asm, #name"_asm", d, s, print_flags(buf1,inflags), print_flags(buf2,flags)); - -#define VAL_FAIL_WORD_WORD_BINARY(name) \ - if (failed) \ - printk("fail\n"); \ - printk("0x%04X = %-15s(0x%04X,0x%04X), flags = %s -> %s\n", \ - r, #name, d, s, print_flags(buf1,inflags), print_flags(buf2,M.x86.R_EFLG)); \ - printk("0x%04X = %-15s(0x%04X,0x%04X), flags = %s -> %s\n", \ - r_asm, #name"_asm", d, s, print_flags(buf1,inflags), print_flags(buf2,flags)); - -#define VAL_FAIL_LONG_LONG_BINARY(name) \ - if (failed) \ - printk("fail\n"); \ - printk("0x%08X = %-15s(0x%08X,0x%08X), flags = %s -> %s\n", \ - r, #name, d, s, print_flags(buf1,inflags), print_flags(buf2,M.x86.R_EFLG)); \ - printk("0x%08X = %-15s(0x%08X,0x%08X), flags = %s -> %s\n", \ - r_asm, #name"_asm", d, s, print_flags(buf1,inflags), print_flags(buf2,flags)); - -#define VAL_END_BINARY() \ - } \ - M.x86.R_EFLG = inflags = flags = def_flags | (ALL_FLAGS & ~F_OF); \ - if (failed) \ - break; \ - } \ - if (failed) \ - break; \ - } \ - if (failed) \ - break; \ - } \ - if (!failed) \ - printk("passed\n"); \ -} - -#define VAL_BYTE_BYTE_BINARY(name) \ - printk("Validating %s ... ", #name); \ - VAL_START_BINARY(u8,u8,0xFF,0xFF,1,1) \ - VAL_TEST_BINARY(name) \ - VAL_FAIL_BYTE_BYTE_BINARY(name) \ - VAL_END_BINARY() - -#define VAL_WORD_WORD_BINARY(name) \ - printk("Validating %s ... ", #name); \ - VAL_START_BINARY(u16,u16,0xFF00,0xFF00,0x100,0x100) \ - VAL_TEST_BINARY(name) \ - VAL_FAIL_WORD_WORD_BINARY(name) \ - VAL_END_BINARY() - -#define VAL_LONG_LONG_BINARY(name) \ - printk("Validating %s ... ", #name); \ - VAL_START_BINARY(u32,u32,0xFF000000,0xFF000000,0x1000000,0x1000000) \ - VAL_TEST_BINARY(name) \ - VAL_FAIL_LONG_LONG_BINARY(name) \ - VAL_END_BINARY() - -#define VAL_VOID_BYTE_BINARY(name) \ - printk("Validating %s ... ", #name); \ - VAL_START_BINARY(u8,u8,0xFF,0xFF,1,1) \ - VAL_TEST_BINARY_VOID(name) \ - VAL_FAIL_BYTE_BYTE_BINARY(name) \ - VAL_END_BINARY() - -#define VAL_VOID_WORD_BINARY(name) \ - printk("Validating %s ... ", #name); \ - VAL_START_BINARY(u16,u16,0xFF00,0xFF00,0x100,0x100) \ - VAL_TEST_BINARY_VOID(name) \ - VAL_FAIL_WORD_WORD_BINARY(name) \ - VAL_END_BINARY() - -#define VAL_VOID_LONG_BINARY(name) \ - printk("Validating %s ... ", #name); \ - VAL_START_BINARY(u32,u32,0xFF000000,0xFF000000,0x1000000,0x1000000) \ - VAL_TEST_BINARY_VOID(name) \ - VAL_FAIL_LONG_LONG_BINARY(name) \ - VAL_END_BINARY() - -#define VAL_BYTE_ROTATE(name) \ - printk("Validating %s ... ", #name); \ - VAL_START_BINARY(u8,u8,0xFF,8,1,1) \ - VAL_TEST_BINARY(name) \ - VAL_FAIL_BYTE_BYTE_BINARY(name) \ - VAL_END_BINARY() - -#define VAL_WORD_ROTATE(name) \ - printk("Validating %s ... ", #name); \ - VAL_START_BINARY(u16,u16,0xFF00,16,0x100,1) \ - VAL_TEST_BINARY(name) \ - VAL_FAIL_WORD_WORD_BINARY(name) \ - VAL_END_BINARY() - -#define VAL_LONG_ROTATE(name) \ - printk("Validating %s ... ", #name); \ - VAL_START_BINARY(u32,u32,0xFF000000,32,0x1000000,1) \ - VAL_TEST_BINARY(name) \ - VAL_FAIL_LONG_LONG_BINARY(name) \ - VAL_END_BINARY() - -#define VAL_START_TERNARY(parm_type,res_type,dmax,smax,dincr,sincr,maxshift)\ -{ \ - parm_type d,s; \ - res_type r,r_asm; \ - u8 shift; \ - u32 flags,inflags; \ - int f,failed = false; \ - char buf1[80],buf2[80]; \ - for (d = 0; d < dmax; d += dincr) { \ - for (s = 0; s < smax; s += sincr) { \ - for (shift = 0; shift < maxshift; shift += 1) { \ - M.x86.R_EFLG = inflags = flags = def_flags; \ - for (f = 0; f < 2; f++) { - -#define VAL_TEST_TERNARY(name) \ - r_asm = name##_asm(&flags,d,s,shift); \ - r = name(d,s,shift); \ - if (r != r_asm || M.x86.R_EFLG != flags) \ - failed = true; \ - if (failed || trace) { - -#define VAL_FAIL_WORD_WORD_TERNARY(name) \ - if (failed) \ - printk("fail\n"); \ - printk("0x%04X = %-15s(0x%04X,0x%04X,%d), flags = %s -> %s\n", \ - r, #name, d, s, shift, print_flags(buf1,inflags), print_flags(buf2,M.x86.R_EFLG)); \ - printk("0x%04X = %-15s(0x%04X,0x%04X,%d), flags = %s -> %s\n", \ - r_asm, #name"_asm", d, s, shift, print_flags(buf1,inflags), print_flags(buf2,flags)); - -#define VAL_FAIL_LONG_LONG_TERNARY(name) \ - if (failed) \ - printk("fail\n"); \ - printk("0x%08X = %-15s(0x%08X,0x%08X,%d), flags = %s -> %s\n", \ - r, #name, d, s, shift, print_flags(buf1,inflags), print_flags(buf2,M.x86.R_EFLG)); \ - printk("0x%08X = %-15s(0x%08X,0x%08X,%d), flags = %s -> %s\n", \ - r_asm, #name"_asm", d, s, shift, print_flags(buf1,inflags), print_flags(buf2,flags)); - -#define VAL_END_TERNARY() \ - } \ - M.x86.R_EFLG = inflags = flags = def_flags | (ALL_FLAGS & ~F_OF); \ - if (failed) \ - break; \ - } \ - if (failed) \ - break; \ - } \ - if (failed) \ - break; \ - } \ - if (failed) \ - break; \ - } \ - if (!failed) \ - printk("passed\n"); \ -} - -#define VAL_WORD_ROTATE_DBL(name) \ - printk("Validating %s ... ", #name); \ - VAL_START_TERNARY(u16,u16,0xFF00,0xFF00,0x100,0x100,16) \ - VAL_TEST_TERNARY(name) \ - VAL_FAIL_WORD_WORD_TERNARY(name) \ - VAL_END_TERNARY() - -#define VAL_LONG_ROTATE_DBL(name) \ - printk("Validating %s ... ", #name); \ - VAL_START_TERNARY(u32,u32,0xFF000000,0xFF000000,0x1000000,0x1000000,32) \ - VAL_TEST_TERNARY(name) \ - VAL_FAIL_LONG_LONG_TERNARY(name) \ - VAL_END_TERNARY() - -#define VAL_START_UNARY(parm_type,max,incr) \ -{ \ - parm_type d,r,r_asm; \ - u32 flags,inflags; \ - int f,failed = false; \ - char buf1[80],buf2[80]; \ - for (d = 0; d < max; d += incr) { \ - M.x86.R_EFLG = inflags = flags = def_flags; \ - for (f = 0; f < 2; f++) { - -#define VAL_TEST_UNARY(name) \ - r_asm = name##_asm(&flags,d); \ - r = name(d); \ - if (r != r_asm || M.x86.R_EFLG != flags) { \ - failed = true; - -#define VAL_FAIL_BYTE_UNARY(name) \ - printk("fail\n"); \ - printk("0x%02X = %-15s(0x%02X), flags = %s -> %s\n", \ - r, #name, d, print_flags(buf1,inflags), print_flags(buf2,M.x86.R_EFLG)); \ - printk("0x%02X = %-15s(0x%02X), flags = %s -> %s\n", \ - r_asm, #name"_asm", d, print_flags(buf1,inflags), print_flags(buf2,flags)); - -#define VAL_FAIL_WORD_UNARY(name) \ - printk("fail\n"); \ - printk("0x%04X = %-15s(0x%04X), flags = %s -> %s\n", \ - r, #name, d, print_flags(buf1,inflags), print_flags(buf2,M.x86.R_EFLG)); \ - printk("0x%04X = %-15s(0x%04X), flags = %s -> %s\n", \ - r_asm, #name"_asm", d, print_flags(buf1,inflags), print_flags(buf2,flags)); - -#define VAL_FAIL_LONG_UNARY(name) \ - printk("fail\n"); \ - printk("0x%08X = %-15s(0x%08X), flags = %s -> %s\n", \ - r, #name, d, print_flags(buf1,inflags), print_flags(buf2,M.x86.R_EFLG)); \ - printk("0x%08X = %-15s(0x%08X), flags = %s -> %s\n", \ - r_asm, #name"_asm", d, print_flags(buf1,inflags), print_flags(buf2,flags)); - -#define VAL_END_UNARY() \ - } \ - M.x86.R_EFLG = inflags = flags = def_flags | ALL_FLAGS; \ - if (failed) \ - break; \ - } \ - if (failed) \ - break; \ - } \ - if (!failed) \ - printk("passed\n"); \ -} - -#define VAL_BYTE_UNARY(name) \ - printk("Validating %s ... ", #name); \ - VAL_START_UNARY(u8,0xFF,0x1) \ - VAL_TEST_UNARY(name) \ - VAL_FAIL_BYTE_UNARY(name) \ - VAL_END_UNARY() - -#define VAL_WORD_UNARY(name) \ - printk("Validating %s ... ", #name); \ - VAL_START_UNARY(u16,0xFF00,0x100) \ - VAL_TEST_UNARY(name) \ - VAL_FAIL_WORD_UNARY(name) \ - VAL_END_UNARY() - -#define VAL_WORD_BYTE_UNARY(name) \ - printk("Validating %s ... ", #name); \ - VAL_START_UNARY(u16,0xFF,0x1) \ - VAL_TEST_UNARY(name) \ - VAL_FAIL_WORD_UNARY(name) \ - VAL_END_UNARY() - -#define VAL_LONG_UNARY(name) \ - printk("Validating %s ... ", #name); \ - VAL_START_UNARY(u32,0xFF000000,0x1000000) \ - VAL_TEST_UNARY(name) \ - VAL_FAIL_LONG_UNARY(name) \ - VAL_END_UNARY() - -#define VAL_BYTE_MUL(name) \ - printk("Validating %s ... ", #name); \ -{ \ - u8 d,s; \ - u16 r,r_asm; \ - u32 flags,inflags; \ - int f,failed = false; \ - char buf1[80],buf2[80]; \ - for (d = 0; d < 0xFF; d += 1) { \ - for (s = 0; s < 0xFF; s += 1) { \ - M.x86.R_EFLG = inflags = flags = def_flags; \ - for (f = 0; f < 2; f++) { \ - name##_asm(&flags,&r_asm,d,s); \ - M.x86.R_AL = d; \ - name(s); \ - r = M.x86.R_AX; \ - if (r != r_asm || M.x86.R_EFLG != flags) \ - failed = true; \ - if (failed || trace) { \ - if (failed) \ - printk("fail\n"); \ - printk("0x%04X = %-15s(0x%02X,0x%02X), flags = %s -> %s\n", \ - r, #name, d, s, print_flags(buf1,inflags), print_flags(buf2,M.x86.R_EFLG)); \ - printk("0x%04X = %-15s(0x%02X,0x%02X), flags = %s -> %s\n", \ - r_asm, #name"_asm", d, s, print_flags(buf1,inflags), print_flags(buf2,flags)); \ - } \ - M.x86.R_EFLG = inflags = flags = def_flags | (ALL_FLAGS & ~F_OF); \ - if (failed) \ - break; \ - } \ - if (failed) \ - break; \ - } \ - if (failed) \ - break; \ - } \ - if (!failed) \ - printk("passed\n"); \ -} - -#define VAL_WORD_MUL(name) \ - printk("Validating %s ... ", #name); \ -{ \ - u16 d,s; \ - u16 r_lo,r_asm_lo; \ - u16 r_hi,r_asm_hi; \ - u32 flags,inflags; \ - int f,failed = false; \ - char buf1[80],buf2[80]; \ - for (d = 0; d < 0xFF00; d += 0x100) { \ - for (s = 0; s < 0xFF00; s += 0x100) { \ - M.x86.R_EFLG = inflags = flags = def_flags; \ - for (f = 0; f < 2; f++) { \ - name##_asm(&flags,&r_asm_lo,&r_asm_hi,d,s); \ - M.x86.R_AX = d; \ - name(s); \ - r_lo = M.x86.R_AX; \ - r_hi = M.x86.R_DX; \ - if (r_lo != r_asm_lo || r_hi != r_asm_hi || M.x86.R_EFLG != flags)\ - failed = true; \ - if (failed || trace) { \ - if (failed) \ - printk("fail\n"); \ - printk("0x%04X:0x%04X = %-15s(0x%04X,0x%04X), flags = %s -> %s\n", \ - r_hi,r_lo, #name, d, s, print_flags(buf1,inflags), print_flags(buf2,M.x86.R_EFLG)); \ - printk("0x%04X:0x%04X = %-15s(0x%04X,0x%04X), flags = %s -> %s\n", \ - r_asm_hi,r_asm_lo, #name"_asm", d, s, print_flags(buf1,inflags), print_flags(buf2,flags)); \ - } \ - M.x86.R_EFLG = inflags = flags = def_flags | (ALL_FLAGS & ~F_OF); \ - if (failed) \ - break; \ - } \ - if (failed) \ - break; \ - } \ - if (failed) \ - break; \ - } \ - if (!failed) \ - printk("passed\n"); \ -} - -#define VAL_LONG_MUL(name) \ - printk("Validating %s ... ", #name); \ -{ \ - u32 d,s; \ - u32 r_lo,r_asm_lo; \ - u32 r_hi,r_asm_hi; \ - u32 flags,inflags; \ - int f,failed = false; \ - char buf1[80],buf2[80]; \ - for (d = 0; d < 0xFF000000; d += 0x1000000) { \ - for (s = 0; s < 0xFF000000; s += 0x1000000) { \ - M.x86.R_EFLG = inflags = flags = def_flags; \ - for (f = 0; f < 2; f++) { \ - name##_asm(&flags,&r_asm_lo,&r_asm_hi,d,s); \ - M.x86.R_EAX = d; \ - name(s); \ - r_lo = M.x86.R_EAX; \ - r_hi = M.x86.R_EDX; \ - if (r_lo != r_asm_lo || r_hi != r_asm_hi || M.x86.R_EFLG != flags)\ - failed = true; \ - if (failed || trace) { \ - if (failed) \ - printk("fail\n"); \ - printk("0x%08X:0x%08X = %-15s(0x%08X,0x%08X), flags = %s -> %s\n", \ - r_hi,r_lo, #name, d, s, print_flags(buf1,inflags), print_flags(buf2,M.x86.R_EFLG)); \ - printk("0x%08X:0x%08X = %-15s(0x%08X,0x%08X), flags = %s -> %s\n", \ - r_asm_hi,r_asm_lo, #name"_asm", d, s, print_flags(buf1,inflags), print_flags(buf2,flags)); \ - } \ - M.x86.R_EFLG = inflags = flags = def_flags | (ALL_FLAGS & ~F_OF); \ - if (failed) \ - break; \ - } \ - if (failed) \ - break; \ - } \ - if (failed) \ - break; \ - } \ - if (!failed) \ - printk("passed\n"); \ -} - -#define VAL_BYTE_DIV(name) \ - printk("Validating %s ... ", #name); \ -{ \ - u16 d,s; \ - u8 r_quot,r_rem,r_asm_quot,r_asm_rem; \ - u32 flags,inflags; \ - int f,failed = false; \ - char buf1[80],buf2[80]; \ - for (d = 0; d < 0xFF00; d += 0x100) { \ - for (s = 1; s < 0xFF; s += 1) { \ - M.x86.R_EFLG = inflags = flags = def_flags; \ - for (f = 0; f < 2; f++) { \ - M.x86.intr = 0; \ - M.x86.R_AX = d; \ - name(s); \ - r_quot = M.x86.R_AL; \ - r_rem = M.x86.R_AH; \ - if (M.x86.intr & INTR_SYNCH) \ - continue; \ - name##_asm(&flags,&r_asm_quot,&r_asm_rem,d,s); \ - if (r_quot != r_asm_quot || r_rem != r_asm_rem || M.x86.R_EFLG != flags) \ - failed = true; \ - if (failed || trace) { \ - if (failed) \ - printk("fail\n"); \ - printk("0x%02X:0x%02X = %-15s(0x%04X,0x%02X), flags = %s -> %s\n", \ - r_quot, r_rem, #name, d, s, print_flags(buf1,inflags), print_flags(buf2,M.x86.R_EFLG)); \ - printk("0x%02X:0x%02X = %-15s(0x%04X,0x%02X), flags = %s -> %s\n", \ - r_asm_quot, r_asm_rem, #name"_asm", d, s, print_flags(buf1,inflags), print_flags(buf2,flags)); \ - } \ - M.x86.R_EFLG = inflags = flags = def_flags | (ALL_FLAGS & ~F_OF); \ - if (failed) \ - break; \ - } \ - if (failed) \ - break; \ - } \ - if (failed) \ - break; \ - } \ - if (!failed) \ - printk("passed\n"); \ -} - -#define VAL_WORD_DIV(name) \ - printk("Validating %s ... ", #name); \ -{ \ - u32 d,s; \ - u16 r_quot,r_rem,r_asm_quot,r_asm_rem; \ - u32 flags,inflags; \ - int f,failed = false; \ - char buf1[80],buf2[80]; \ - for (d = 0; d < 0xFF000000; d += 0x1000000) { \ - for (s = 0x100; s < 0xFF00; s += 0x100) { \ - M.x86.R_EFLG = inflags = flags = def_flags; \ - for (f = 0; f < 2; f++) { \ - M.x86.intr = 0; \ - M.x86.R_AX = d & 0xFFFF; \ - M.x86.R_DX = d >> 16; \ - name(s); \ - r_quot = M.x86.R_AX; \ - r_rem = M.x86.R_DX; \ - if (M.x86.intr & INTR_SYNCH) \ - continue; \ - name##_asm(&flags,&r_asm_quot,&r_asm_rem,d & 0xFFFF,d >> 16,s);\ - if (r_quot != r_asm_quot || r_rem != r_asm_rem || M.x86.R_EFLG != flags) \ - failed = true; \ - if (failed || trace) { \ - if (failed) \ - printk("fail\n"); \ - printk("0x%04X:0x%04X = %-15s(0x%08X,0x%04X), flags = %s -> %s\n", \ - r_quot, r_rem, #name, d, s, print_flags(buf1,inflags), print_flags(buf2,M.x86.R_EFLG)); \ - printk("0x%04X:0x%04X = %-15s(0x%08X,0x%04X), flags = %s -> %s\n", \ - r_asm_quot, r_asm_rem, #name"_asm", d, s, print_flags(buf1,inflags), print_flags(buf2,flags)); \ - } \ - M.x86.R_EFLG = inflags = flags = def_flags | (ALL_FLAGS & ~F_OF); \ - if (failed) \ - break; \ - } \ - if (failed) \ - break; \ - } \ - if (failed) \ - break; \ - } \ - if (!failed) \ - printk("passed\n"); \ -} - -#define VAL_LONG_DIV(name) \ - printk("Validating %s ... ", #name); \ -{ \ - u32 d,s; \ - u32 r_quot,r_rem,r_asm_quot,r_asm_rem; \ - u32 flags,inflags; \ - int f,failed = false; \ - char buf1[80],buf2[80]; \ - for (d = 0; d < 0xFF000000; d += 0x1000000) { \ - for (s = 0x100; s < 0xFF00; s += 0x100) { \ - M.x86.R_EFLG = inflags = flags = def_flags; \ - for (f = 0; f < 2; f++) { \ - M.x86.intr = 0; \ - M.x86.R_EAX = d; \ - M.x86.R_EDX = 0; \ - name(s); \ - r_quot = M.x86.R_EAX; \ - r_rem = M.x86.R_EDX; \ - if (M.x86.intr & INTR_SYNCH) \ - continue; \ - name##_asm(&flags,&r_asm_quot,&r_asm_rem,d,0,s); \ - if (r_quot != r_asm_quot || r_rem != r_asm_rem || M.x86.R_EFLG != flags) \ - failed = true; \ - if (failed || trace) { \ - if (failed) \ - printk("fail\n"); \ - printk("0x%08X:0x%08X = %-15s(0x%08X:0x%08X,0x%08X), flags = %s -> %s\n", \ - r_quot, r_rem, #name, 0, d, s, print_flags(buf1,inflags), print_flags(buf2,M.x86.R_EFLG)); \ - printk("0x%08X:0x%08X = %-15s(0x%08X:0x%08X,0x%08X), flags = %s -> %s\n", \ - r_asm_quot, r_asm_rem, #name"_asm", 0, d, s, print_flags(buf1,inflags), print_flags(buf2,flags)); \ - } \ - M.x86.R_EFLG = inflags = flags = def_flags | (ALL_FLAGS & ~F_OF); \ - if (failed) \ - break; \ - } \ - if (failed) \ - break; \ - } \ - if (failed) \ - break; \ - } \ - if (!failed) \ - printk("passed\n"); \ -} - -void printk(const char *fmt, ...) -{ - va_list argptr; - va_start(argptr, fmt); - vfprintf(stdout, fmt, argptr); - fflush(stdout); - va_end(argptr); -} - -char * print_flags(char *buf,ulong flags) -{ - char *separator = ""; - - buf[0] = 0; - if (flags & F_CF) { - strcat(buf,separator); - strcat(buf,"CF"); - separator = ","; - } - if (flags & F_PF) { - strcat(buf,separator); - strcat(buf,"PF"); - separator = ","; - } - if (flags & F_AF) { - strcat(buf,separator); - strcat(buf,"AF"); - separator = ","; - } - if (flags & F_ZF) { - strcat(buf,separator); - strcat(buf,"ZF"); - separator = ","; - } - if (flags & F_SF) { - strcat(buf,separator); - strcat(buf,"SF"); - separator = ","; - } - if (flags & F_OF) { - strcat(buf,separator); - strcat(buf,"OF"); - separator = ","; - } - if (separator[0] == 0) - strcpy(buf,"None"); - return buf; -} - -int main(int argc) -{ - ulong def_flags; - int trace = false; - - if (argc > 1) - trace = true; - memset(&M, 0, sizeof(M)); - def_flags = get_flags_asm() & ~ALL_FLAGS; - - VAL_WORD_UNARY(aaa_word); - VAL_WORD_UNARY(aas_word); - - VAL_WORD_UNARY(aad_word); - VAL_WORD_UNARY(aam_word); - - VAL_BYTE_BYTE_BINARY(adc_byte); - VAL_WORD_WORD_BINARY(adc_word); - VAL_LONG_LONG_BINARY(adc_long); - - VAL_BYTE_BYTE_BINARY(add_byte); - VAL_WORD_WORD_BINARY(add_word); - VAL_LONG_LONG_BINARY(add_long); - - VAL_BYTE_BYTE_BINARY(and_byte); - VAL_WORD_WORD_BINARY(and_word); - VAL_LONG_LONG_BINARY(and_long); - - VAL_BYTE_BYTE_BINARY(cmp_byte); - VAL_WORD_WORD_BINARY(cmp_word); - VAL_LONG_LONG_BINARY(cmp_long); - - VAL_BYTE_UNARY(daa_byte); - VAL_BYTE_UNARY(das_byte); // Fails for 0x9A (out of range anyway) - - VAL_BYTE_UNARY(dec_byte); - VAL_WORD_UNARY(dec_word); - VAL_LONG_UNARY(dec_long); - - VAL_BYTE_UNARY(inc_byte); - VAL_WORD_UNARY(inc_word); - VAL_LONG_UNARY(inc_long); - - VAL_BYTE_BYTE_BINARY(or_byte); - VAL_WORD_WORD_BINARY(or_word); - VAL_LONG_LONG_BINARY(or_long); - - VAL_BYTE_UNARY(neg_byte); - VAL_WORD_UNARY(neg_word); - VAL_LONG_UNARY(neg_long); - - VAL_BYTE_UNARY(not_byte); - VAL_WORD_UNARY(not_word); - VAL_LONG_UNARY(not_long); - - VAL_BYTE_ROTATE(rcl_byte); - VAL_WORD_ROTATE(rcl_word); - VAL_LONG_ROTATE(rcl_long); - - VAL_BYTE_ROTATE(rcr_byte); - VAL_WORD_ROTATE(rcr_word); - VAL_LONG_ROTATE(rcr_long); - - VAL_BYTE_ROTATE(rol_byte); - VAL_WORD_ROTATE(rol_word); - VAL_LONG_ROTATE(rol_long); - - VAL_BYTE_ROTATE(ror_byte); - VAL_WORD_ROTATE(ror_word); - VAL_LONG_ROTATE(ror_long); - - VAL_BYTE_ROTATE(shl_byte); - VAL_WORD_ROTATE(shl_word); - VAL_LONG_ROTATE(shl_long); - - VAL_BYTE_ROTATE(shr_byte); - VAL_WORD_ROTATE(shr_word); - VAL_LONG_ROTATE(shr_long); - - VAL_BYTE_ROTATE(sar_byte); - VAL_WORD_ROTATE(sar_word); - VAL_LONG_ROTATE(sar_long); - - VAL_WORD_ROTATE_DBL(shld_word); - VAL_LONG_ROTATE_DBL(shld_long); - - VAL_WORD_ROTATE_DBL(shrd_word); - VAL_LONG_ROTATE_DBL(shrd_long); - - VAL_BYTE_BYTE_BINARY(sbb_byte); - VAL_WORD_WORD_BINARY(sbb_word); - VAL_LONG_LONG_BINARY(sbb_long); - - VAL_BYTE_BYTE_BINARY(sub_byte); - VAL_WORD_WORD_BINARY(sub_word); - VAL_LONG_LONG_BINARY(sub_long); - - VAL_BYTE_BYTE_BINARY(xor_byte); - VAL_WORD_WORD_BINARY(xor_word); - VAL_LONG_LONG_BINARY(xor_long); - - VAL_VOID_BYTE_BINARY(test_byte); - VAL_VOID_WORD_BINARY(test_word); - VAL_VOID_LONG_BINARY(test_long); - - VAL_BYTE_MUL(imul_byte); - VAL_WORD_MUL(imul_word); - VAL_LONG_MUL(imul_long); - - VAL_BYTE_MUL(mul_byte); - VAL_WORD_MUL(mul_word); - VAL_LONG_MUL(mul_long); - - VAL_BYTE_DIV(idiv_byte); - VAL_WORD_DIV(idiv_word); - VAL_LONG_DIV(idiv_long); - - VAL_BYTE_DIV(div_byte); - VAL_WORD_DIV(div_word); - VAL_LONG_DIV(div_long); - - return 0; -} diff --git a/x86emu/x86emu.h b/x86emu/x86emu.h deleted file mode 100644 index 795e2d6..0000000 --- a/x86emu/x86emu.h +++ /dev/null @@ -1,198 +0,0 @@ -/**************************************************************************** -* -* Realmode X86 Emulator Library -* -* Copyright (C) 1996-1999 SciTech Software, Inc. -* Copyright (C) David Mosberger-Tang -* Copyright (C) 1999 Egbert Eich -* -* ======================================================================== -* -* Permission to use, copy, modify, distribute, and sell this software and -* its documentation for any purpose is hereby granted without fee, -* provided that the above copyright notice appear in all copies and that -* both that copyright notice and this permission notice appear in -* supporting documentation, and that the name of the authors not be used -* in advertising or publicity pertaining to distribution of the software -* without specific, written prior permission. The authors makes no -* representations about the suitability of this software for any purpose. -* It is provided "as is" without express or implied warranty. -* -* THE AUTHORS DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, -* INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO -* EVENT SHALL THE AUTHORS BE LIABLE FOR ANY SPECIAL, INDIRECT OR -* CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF -* USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR -* OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR -* PERFORMANCE OF THIS SOFTWARE. -* -* ======================================================================== -* -* Language: ANSI C -* Environment: Any -* Developer: Kendall Bennett -* -* Description: Header file for public specific functions. -* Any application linking against us should only -* include this header -* -****************************************************************************/ - -#ifndef __X86EMU_X86EMU_H -#define __X86EMU_X86EMU_H - -#ifdef SCITECH -#include "scitech.h" -#define X86API _ASMAPI -#define X86APIP _ASMAPIP -typedef int X86EMU_pioAddr; -#else -#include "x86emu/types.h" -#define X86API -#define X86APIP * -#endif -#include "x86emu/regs.h" - -/*---------------------- Macros and type definitions ----------------------*/ - -#ifdef PACK -# pragma PACK /* Don't pack structs with function pointers! */ -#endif - -/**************************************************************************** -REMARKS: -Data structure containing ponters to programmed I/O functions used by the -emulator. This is used so that the user program can hook all programmed -I/O for the emulator to handled as necessary by the user program. By -default the emulator contains simple functions that do not do access the -hardware in any way. To allow the emualtor access the hardware, you will -need to override the programmed I/O functions using the X86EMU_setupPioFuncs -function. - -HEADER: -x86emu.h - -MEMBERS: -inb - Function to read a byte from an I/O port -inw - Function to read a word from an I/O port -inl - Function to read a dword from an I/O port -outb - Function to write a byte to an I/O port -outw - Function to write a word to an I/O port -outl - Function to write a dword to an I/O port -****************************************************************************/ -typedef struct { - u8 (X86APIP inb)(X86EMU_pioAddr addr); - u16 (X86APIP inw)(X86EMU_pioAddr addr); - u32 (X86APIP inl)(X86EMU_pioAddr addr); - void (X86APIP outb)(X86EMU_pioAddr addr, u8 val); - void (X86APIP outw)(X86EMU_pioAddr addr, u16 val); - void (X86APIP outl)(X86EMU_pioAddr addr, u32 val); - } X86EMU_pioFuncs; - -/**************************************************************************** -REMARKS: -Data structure containing ponters to memory access functions used by the -emulator. This is used so that the user program can hook all memory -access functions as necessary for the emulator. By default the emulator -contains simple functions that only access the internal memory of the -emulator. If you need specialised functions to handle access to different -types of memory (ie: hardware framebuffer accesses and BIOS memory access -etc), you will need to override this using the X86EMU_setupMemFuncs -function. - -HEADER: -x86emu.h - -MEMBERS: -rdb - Function to read a byte from an address -rdw - Function to read a word from an address -rdl - Function to read a dword from an address -wrb - Function to write a byte to an address -wrw - Function to write a word to an address -wrl - Function to write a dword to an address -****************************************************************************/ -typedef struct { - u8 (X86APIP rdb)(u32 addr); - u16 (X86APIP rdw)(u32 addr); - u32 (X86APIP rdl)(u32 addr); - void (X86APIP wrb)(u32 addr, u8 val); - void (X86APIP wrw)(u32 addr, u16 val); - void (X86APIP wrl)(u32 addr, u32 val); - } X86EMU_memFuncs; - -/**************************************************************************** - Here are the default memory read and write - function in case they are needed as fallbacks. -***************************************************************************/ -extern u8 X86API rdb(u32 addr); -extern u16 X86API rdw(u32 addr); -extern u32 X86API rdl(u32 addr); -extern void X86API wrb(u32 addr, u8 val); -extern void X86API wrw(u32 addr, u16 val); -extern void X86API wrl(u32 addr, u32 val); - -#ifdef END_PACK -# pragma END_PACK -#endif - -/*--------------------- type definitions -----------------------------------*/ - -typedef void (X86APIP X86EMU_intrFuncs)(int num); -extern X86EMU_intrFuncs _X86EMU_intrTab[256]; - -/*-------------------------- Function Prototypes --------------------------*/ - -#ifdef __cplusplus -extern "C" { /* Use "C" linkage when in C++ mode */ -#endif - -void X86EMU_setupMemFuncs(X86EMU_memFuncs *funcs); -void X86EMU_setupPioFuncs(X86EMU_pioFuncs *funcs); -void X86EMU_setupIntrFuncs(X86EMU_intrFuncs funcs[]); -void X86EMU_prepareForInt(int num); - -/* decode.c */ - -void X86EMU_exec(void); -void X86EMU_halt_sys(void); - -#ifdef DEBUG -#define HALT_SYS() \ - printk("halt_sys: file %s, line %d\n", __FILE__, __LINE__), \ - X86EMU_halt_sys() -#else -#define HALT_SYS() X86EMU_halt_sys() -#endif - -/* Debug options */ - -#define DEBUG_DECODE_F 0x000001 /* print decoded instruction */ -#define DEBUG_TRACE_F 0x000002 /* dump regs before/after execution */ -#define DEBUG_STEP_F 0x000004 -#define DEBUG_DISASSEMBLE_F 0x000008 -#define DEBUG_BREAK_F 0x000010 -#define DEBUG_SVC_F 0x000020 -#define DEBUG_SAVE_IP_CS_F 0x000040 -#define DEBUG_FS_F 0x000080 -#define DEBUG_PROC_F 0x000100 -#define DEBUG_SYSINT_F 0x000200 /* bios system interrupts. */ -#define DEBUG_TRACECALL_F 0x000400 -#define DEBUG_INSTRUMENT_F 0x000800 -#define DEBUG_MEM_TRACE_F 0x001000 -#define DEBUG_IO_TRACE_F 0x002000 -#define DEBUG_TRACECALL_REGS_F 0x004000 -#define DEBUG_DECODE_NOPRINT_F 0x008000 -#define DEBUG_EXIT 0x010000 -#define DEBUG_SYS_F (DEBUG_SVC_F|DEBUG_FS_F|DEBUG_PROC_F) - -void X86EMU_trace_regs(void); -void X86EMU_trace_xregs(void); -void X86EMU_dump_memory(u16 seg, u16 off, u32 amt); -int X86EMU_trace_on(void); -int X86EMU_trace_off(void); - -#ifdef __cplusplus -} /* End of "C" linkage for C++ */ -#endif - -#endif /* __X86EMU_X86EMU_H */ diff --git a/x86emu/x86emu/debug.h b/x86emu/x86emu/debug.h deleted file mode 100644 index 47aacb6..0000000 --- a/x86emu/x86emu/debug.h +++ /dev/null @@ -1,210 +0,0 @@ -/**************************************************************************** -* -* Realmode X86 Emulator Library -* -* Copyright (C) 1996-1999 SciTech Software, Inc. -* Copyright (C) David Mosberger-Tang -* Copyright (C) 1999 Egbert Eich -* -* ======================================================================== -* -* Permission to use, copy, modify, distribute, and sell this software and -* its documentation for any purpose is hereby granted without fee, -* provided that the above copyright notice appear in all copies and that -* both that copyright notice and this permission notice appear in -* supporting documentation, and that the name of the authors not be used -* in advertising or publicity pertaining to distribution of the software -* without specific, written prior permission. The authors makes no -* representations about the suitability of this software for any purpose. -* It is provided "as is" without express or implied warranty. -* -* THE AUTHORS DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, -* INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO -* EVENT SHALL THE AUTHORS BE LIABLE FOR ANY SPECIAL, INDIRECT OR -* CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF -* USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR -* OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR -* PERFORMANCE OF THIS SOFTWARE. -* -* ======================================================================== -* -* Language: ANSI C -* Environment: Any -* Developer: Kendall Bennett -* -* Description: Header file for debug definitions. -* -****************************************************************************/ - -#ifndef __X86EMU_DEBUG_H -#define __X86EMU_DEBUG_H - -/*---------------------- Macros and type definitions ----------------------*/ - -/* checks to be enabled for "runtime" */ - -#define CHECK_IP_FETCH_F 0x1 -#define CHECK_SP_ACCESS_F 0x2 -#define CHECK_MEM_ACCESS_F 0x4 /*using regular linear pointer */ -#define CHECK_DATA_ACCESS_F 0x8 /*using segment:offset*/ - -#ifdef DEBUG -# define CHECK_IP_FETCH() (M.x86.check & CHECK_IP_FETCH_F) -# define CHECK_SP_ACCESS() (M.x86.check & CHECK_SP_ACCESS_F) -# define CHECK_MEM_ACCESS() (M.x86.check & CHECK_MEM_ACCESS_F) -# define CHECK_DATA_ACCESS() (M.x86.check & CHECK_DATA_ACCESS_F) -#else -# define CHECK_IP_FETCH() -# define CHECK_SP_ACCESS() -# define CHECK_MEM_ACCESS() -# define CHECK_DATA_ACCESS() -#endif - -#ifdef DEBUG -# define DEBUG_INSTRUMENT() (M.x86.debug & DEBUG_INSTRUMENT_F) -# define DEBUG_DECODE() (M.x86.debug & DEBUG_DECODE_F) -# define DEBUG_TRACE() (M.x86.debug & DEBUG_TRACE_F) -# define DEBUG_STEP() (M.x86.debug & DEBUG_STEP_F) -# define DEBUG_DISASSEMBLE() (M.x86.debug & DEBUG_DISASSEMBLE_F) -# define DEBUG_BREAK() (M.x86.debug & DEBUG_BREAK_F) -# define DEBUG_SVC() (M.x86.debug & DEBUG_SVC_F) -# define DEBUG_SAVE_IP_CS() (M.x86.debug & DEBUG_SAVE_IP_CS_F) - -# define DEBUG_FS() (M.x86.debug & DEBUG_FS_F) -# define DEBUG_PROC() (M.x86.debug & DEBUG_PROC_F) -# define DEBUG_SYSINT() (M.x86.debug & DEBUG_SYSINT_F) -# define DEBUG_TRACECALL() (M.x86.debug & DEBUG_TRACECALL_F) -# define DEBUG_TRACECALLREGS() (M.x86.debug & DEBUG_TRACECALL_REGS_F) -# define DEBUG_SYS() (M.x86.debug & DEBUG_SYS_F) -# define DEBUG_MEM_TRACE() (M.x86.debug & DEBUG_MEM_TRACE_F) -# define DEBUG_IO_TRACE() (M.x86.debug & DEBUG_IO_TRACE_F) -# define DEBUG_DECODE_NOPRINT() (M.x86.debug & DEBUG_DECODE_NOPRINT_F) -#else -# define DEBUG_INSTRUMENT() 0 -# define DEBUG_DECODE() 0 -# define DEBUG_TRACE() 0 -# define DEBUG_STEP() 0 -# define DEBUG_DISASSEMBLE() 0 -# define DEBUG_BREAK() 0 -# define DEBUG_SVC() 0 -# define DEBUG_SAVE_IP_CS() 0 -# define DEBUG_FS() 0 -# define DEBUG_PROC() 0 -# define DEBUG_SYSINT() 0 -# define DEBUG_TRACECALL() 0 -# define DEBUG_TRACECALLREGS() 0 -# define DEBUG_SYS() 0 -# define DEBUG_MEM_TRACE() 0 -# define DEBUG_IO_TRACE() 0 -# define DEBUG_DECODE_NOPRINT() 0 -#endif - -#ifdef DEBUG - -# define DECODE_PRINTF(x) if (DEBUG_DECODE()) \ - x86emu_decode_printf(x) -# define DECODE_PRINTF2(x,y) if (DEBUG_DECODE()) \ - x86emu_decode_printf2(x,y) - -/* - * The following allow us to look at the bytes of an instruction. The - * first INCR_INSTRN_LEN, is called everytime bytes are consumed in - * the decoding process. The SAVE_IP_CS is called initially when the - * major opcode of the instruction is accessed. - */ -#define INC_DECODED_INST_LEN(x) \ - if (DEBUG_DECODE()) \ - x86emu_inc_decoded_inst_len(x) - -#define SAVE_IP_CS(x,y) \ - if (DEBUG_DECODE() | DEBUG_TRACECALL() | DEBUG_BREAK() \ - | DEBUG_IO_TRACE() | DEBUG_SAVE_IP_CS()) { \ - M.x86.saved_cs = x; \ - M.x86.saved_ip = y; \ - } -#else -# define INC_DECODED_INST_LEN(x) -# define DECODE_PRINTF(x) -# define DECODE_PRINTF2(x,y) -# define SAVE_IP_CS(x,y) -#endif - -#ifdef DEBUG -#define TRACE_REGS() \ - if (DEBUG_DISASSEMBLE()) { \ - x86emu_just_disassemble(); \ - goto EndOfTheInstructionProcedure; \ - } \ - if (DEBUG_TRACE() || DEBUG_DECODE()) X86EMU_trace_regs() -#else -# define TRACE_REGS() -#endif - -#ifdef DEBUG -# define SINGLE_STEP() if (DEBUG_STEP()) x86emu_single_step() -#else -# define SINGLE_STEP() -#endif - -#define TRACE_AND_STEP() \ - TRACE_REGS(); \ - SINGLE_STEP() - -#ifdef DEBUG -# define START_OF_INSTR() -# define END_OF_INSTR() EndOfTheInstructionProcedure: x86emu_end_instr(); -# define END_OF_INSTR_NO_TRACE() x86emu_end_instr(); -#else -# define START_OF_INSTR() -# define END_OF_INSTR() -# define END_OF_INSTR_NO_TRACE() -#endif - -#ifdef DEBUG -# define CALL_TRACE(u,v,w,x,s) \ - if (DEBUG_TRACECALLREGS()) \ - x86emu_dump_regs(); \ - if (DEBUG_TRACECALL()) \ - printk("%04x:%04x: CALL %s%04x:%04x\n", u , v, s, w, x); -# define RETURN_TRACE(n,u,v) \ - if (DEBUG_TRACECALLREGS()) \ - x86emu_dump_regs(); \ - if (DEBUG_TRACECALL()) \ - printk("%04x:%04x: %s\n",u,v,n); -#else -# define CALL_TRACE(u,v,w,x,s) -# define RETURN_TRACE(n,u,v) -#endif - -#ifdef DEBUG -#define DB(x) x -#else -#define DB(x) -#endif - -/*-------------------------- Function Prototypes --------------------------*/ - -#ifdef __cplusplus -extern "C" { /* Use "C" linkage when in C++ mode */ -#endif - -extern void x86emu_inc_decoded_inst_len (int x); -extern void x86emu_decode_printf (char *x); -extern void x86emu_decode_printf2 (char *x, int y); -extern void x86emu_just_disassemble (void); -extern void x86emu_single_step (void); -extern void x86emu_end_instr (void); -extern void x86emu_dump_regs (void); -extern void x86emu_dump_xregs (void); -extern void x86emu_print_int_vect (u16 iv); -extern void x86emu_instrument_instruction (void); -extern void x86emu_check_ip_access (void); -extern void x86emu_check_sp_access (void); -extern void x86emu_check_mem_access (u32 p); -extern void x86emu_check_data_access (uint s, uint o); - -#ifdef __cplusplus -} /* End of "C" linkage for C++ */ -#endif - -#endif /* __X86EMU_DEBUG_H */ diff --git a/x86emu/x86emu/decode.h b/x86emu/x86emu/decode.h deleted file mode 100644 index 61cd4dc..0000000 --- a/x86emu/x86emu/decode.h +++ /dev/null @@ -1,88 +0,0 @@ -/**************************************************************************** -* -* Realmode X86 Emulator Library -* -* Copyright (C) 1996-1999 SciTech Software, Inc. -* Copyright (C) David Mosberger-Tang -* Copyright (C) 1999 Egbert Eich -* -* ======================================================================== -* -* Permission to use, copy, modify, distribute, and sell this software and -* its documentation for any purpose is hereby granted without fee, -* provided that the above copyright notice appear in all copies and that -* both that copyright notice and this permission notice appear in -* supporting documentation, and that the name of the authors not be used -* in advertising or publicity pertaining to distribution of the software -* without specific, written prior permission. The authors makes no -* representations about the suitability of this software for any purpose. -* It is provided "as is" without express or implied warranty. -* -* THE AUTHORS DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, -* INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO -* EVENT SHALL THE AUTHORS BE LIABLE FOR ANY SPECIAL, INDIRECT OR -* CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF -* USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR -* OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR -* PERFORMANCE OF THIS SOFTWARE. -* -* ======================================================================== -* -* Language: ANSI C -* Environment: Any -* Developer: Kendall Bennett -* -* Description: Header file for instruction decoding logic. -* -****************************************************************************/ - -#ifndef __X86EMU_DECODE_H -#define __X86EMU_DECODE_H - -/*---------------------- Macros and type definitions ----------------------*/ - -/* Instruction Decoding Stuff */ - -#define FETCH_DECODE_MODRM(mod,rh,rl) fetch_decode_modrm(&mod,&rh,&rl) -#define DECODE_RM_BYTE_REGISTER(r) decode_rm_byte_register(r) -#define DECODE_RM_WORD_REGISTER(r) decode_rm_word_register(r) -#define DECODE_RM_LONG_REGISTER(r) decode_rm_long_register(r) -#define DECODE_CLEAR_SEGOVR() M.x86.mode &= ~SYSMODE_CLRMASK - -/*-------------------------- Function Prototypes --------------------------*/ - -#ifdef __cplusplus -extern "C" { /* Use "C" linkage when in C++ mode */ -#endif - -void x86emu_intr_raise (u8 type); -void fetch_decode_modrm (int *mod,int *regh,int *regl); -u8 fetch_byte_imm (void); -u16 fetch_word_imm (void); -u32 fetch_long_imm (void); -u8 fetch_data_byte (uint offset); -u8 fetch_data_byte_abs (uint segment, uint offset); -u16 fetch_data_word (uint offset); -u16 fetch_data_word_abs (uint segment, uint offset); -u32 fetch_data_long (uint offset); -u32 fetch_data_long_abs (uint segment, uint offset); -void store_data_byte (uint offset, u8 val); -void store_data_byte_abs (uint segment, uint offset, u8 val); -void store_data_word (uint offset, u16 val); -void store_data_word_abs (uint segment, uint offset, u16 val); -void store_data_long (uint offset, u32 val); -void store_data_long_abs (uint segment, uint offset, u32 val); -u8* decode_rm_byte_register(int reg); -u16* decode_rm_word_register(int reg); -u32* decode_rm_long_register(int reg); -u16* decode_rm_seg_register(int reg); -u32 decode_rm00_address(int rm); -u32 decode_rm01_address(int rm); -u32 decode_rm10_address(int rm); -u32 decode_sib_address(int sib, int mod); - -#ifdef __cplusplus -} /* End of "C" linkage for C++ */ -#endif - -#endif /* __X86EMU_DECODE_H */ diff --git a/x86emu/x86emu/fpu.h b/x86emu/x86emu/fpu.h deleted file mode 100644 index 5fb2714..0000000 --- a/x86emu/x86emu/fpu.h +++ /dev/null @@ -1,61 +0,0 @@ -/**************************************************************************** -* -* Realmode X86 Emulator Library -* -* Copyright (C) 1996-1999 SciTech Software, Inc. -* Copyright (C) David Mosberger-Tang -* Copyright (C) 1999 Egbert Eich -* -* ======================================================================== -* -* Permission to use, copy, modify, distribute, and sell this software and -* its documentation for any purpose is hereby granted without fee, -* provided that the above copyright notice appear in all copies and that -* both that copyright notice and this permission notice appear in -* supporting documentation, and that the name of the authors not be used -* in advertising or publicity pertaining to distribution of the software -* without specific, written prior permission. The authors makes no -* representations about the suitability of this software for any purpose. -* It is provided "as is" without express or implied warranty. -* -* THE AUTHORS DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, -* INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO -* EVENT SHALL THE AUTHORS BE LIABLE FOR ANY SPECIAL, INDIRECT OR -* CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF -* USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR -* OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR -* PERFORMANCE OF THIS SOFTWARE. -* -* ======================================================================== -* -* Language: ANSI C -* Environment: Any -* Developer: Kendall Bennett -* -* Description: Header file for FPU instruction decoding. -* -****************************************************************************/ - -#ifndef __X86EMU_FPU_H -#define __X86EMU_FPU_H - -#ifdef __cplusplus -extern "C" { /* Use "C" linkage when in C++ mode */ -#endif - -/* these have to be defined, whether 8087 support compiled in or not. */ - -extern void x86emuOp_esc_coprocess_d8 (u8 op1); -extern void x86emuOp_esc_coprocess_d9 (u8 op1); -extern void x86emuOp_esc_coprocess_da (u8 op1); -extern void x86emuOp_esc_coprocess_db (u8 op1); -extern void x86emuOp_esc_coprocess_dc (u8 op1); -extern void x86emuOp_esc_coprocess_dd (u8 op1); -extern void x86emuOp_esc_coprocess_de (u8 op1); -extern void x86emuOp_esc_coprocess_df (u8 op1); - -#ifdef __cplusplus -} /* End of "C" linkage for C++ */ -#endif - -#endif /* __X86EMU_FPU_H */ diff --git a/x86emu/x86emu/fpu_regs.h b/x86emu/x86emu/fpu_regs.h deleted file mode 100644 index e59b807..0000000 --- a/x86emu/x86emu/fpu_regs.h +++ /dev/null @@ -1,119 +0,0 @@ -/**************************************************************************** -* -* Realmode X86 Emulator Library -* -* Copyright (C) 1996-1999 SciTech Software, Inc. -* Copyright (C) David Mosberger-Tang -* Copyright (C) 1999 Egbert Eich -* -* ======================================================================== -* -* Permission to use, copy, modify, distribute, and sell this software and -* its documentation for any purpose is hereby granted without fee, -* provided that the above copyright notice appear in all copies and that -* both that copyright notice and this permission notice appear in -* supporting documentation, and that the name of the authors not be used -* in advertising or publicity pertaining to distribution of the software -* without specific, written prior permission. The authors makes no -* representations about the suitability of this software for any purpose. -* It is provided "as is" without express or implied warranty. -* -* THE AUTHORS DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, -* INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO -* EVENT SHALL THE AUTHORS BE LIABLE FOR ANY SPECIAL, INDIRECT OR -* CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF -* USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR -* OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR -* PERFORMANCE OF THIS SOFTWARE. -* -* ======================================================================== -* -* Language: ANSI C -* Environment: Any -* Developer: Kendall Bennett -* -* Description: Header file for FPU register definitions. -* -****************************************************************************/ - -#ifndef __X86EMU_FPU_REGS_H -#define __X86EMU_FPU_REGS_H - -#ifdef X86_FPU_SUPPORT - -#ifdef PACK -# pragma PACK -#endif - -/* Basic 8087 register can hold any of the following values: */ - -union x86_fpu_reg_u { - s8 tenbytes[10]; - double dval; - float fval; - s16 sval; - s32 lval; - }; - -struct x86_fpu_reg { - union x86_fpu_reg_u reg; - char tag; - }; - -/* - * Since we are not going to worry about the problems of aliasing - * registers, every time a register is modified, its result type is - * set in the tag fields for that register. If some operation - * attempts to access the type in a way inconsistent with its current - * storage format, then we flag the operation. If common, we'll - * attempt the conversion. - */ - -#define X86_FPU_VALID 0x80 -#define X86_FPU_REGTYP(r) ((r) & 0x7F) - -#define X86_FPU_WORD 0x0 -#define X86_FPU_SHORT 0x1 -#define X86_FPU_LONG 0x2 -#define X86_FPU_FLOAT 0x3 -#define X86_FPU_DOUBLE 0x4 -#define X86_FPU_LDBL 0x5 -#define X86_FPU_BSD 0x6 - -#define X86_FPU_STKTOP 0 - -struct x86_fpu_registers { - struct x86_fpu_reg x86_fpu_stack[8]; - int x86_fpu_flags; - int x86_fpu_config; /* rounding modes, etc. */ - short x86_fpu_tos, x86_fpu_bos; - }; - -#ifdef END_PACK -# pragma END_PACK -#endif - -/* - * There are two versions of the following macro. - * - * One version is for opcode D9, for which there are more than 32 - * instructions encoded in the second byte of the opcode. - * - * The other version, deals with all the other 7 i87 opcodes, for - * which there are only 32 strings needed to describe the - * instructions. - */ - -#endif /* X86_FPU_SUPPORT */ - -#ifdef DEBUG -# define DECODE_PRINTINSTR32(t,mod,rh,rl) \ - DECODE_PRINTF(t[(mod<<3)+(rh)]); -# define DECODE_PRINTINSTR256(t,mod,rh,rl) \ - DECODE_PRINTF(t[(mod<<6)+(rh<<3)+(rl)]); -#else -# define DECODE_PRINTINSTR32(t,mod,rh,rl) -# define DECODE_PRINTINSTR256(t,mod,rh,rl) -#endif - -#endif /* __X86EMU_FPU_REGS_H */ diff --git a/x86emu/x86emu/ops.h b/x86emu/x86emu/ops.h deleted file mode 100644 index 65ea676..0000000 --- a/x86emu/x86emu/ops.h +++ /dev/null @@ -1,45 +0,0 @@ -/**************************************************************************** -* -* Realmode X86 Emulator Library -* -* Copyright (C) 1996-1999 SciTech Software, Inc. -* Copyright (C) David Mosberger-Tang -* Copyright (C) 1999 Egbert Eich -* -* ======================================================================== -* -* Permission to use, copy, modify, distribute, and sell this software and -* its documentation for any purpose is hereby granted without fee, -* provided that the above copyright notice appear in all copies and that -* both that copyright notice and this permission notice appear in -* supporting documentation, and that the name of the authors not be used -* in advertising or publicity pertaining to distribution of the software -* without specific, written prior permission. The authors makes no -* representations about the suitability of this software for any purpose. -* It is provided "as is" without express or implied warranty. -* -* THE AUTHORS DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, -* INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO -* EVENT SHALL THE AUTHORS BE LIABLE FOR ANY SPECIAL, INDIRECT OR -* CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF -* USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR -* OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR -* PERFORMANCE OF THIS SOFTWARE. -* -* ======================================================================== -* -* Language: ANSI C -* Environment: Any -* Developer: Kendall Bennett -* -* Description: Header file for operand decoding functions. -* -****************************************************************************/ - -#ifndef __X86EMU_OPS_H -#define __X86EMU_OPS_H - -extern void (*x86emu_optab[0x100])(u8 op1); -extern void (*x86emu_optab2[0x100])(u8 op2); - -#endif /* __X86EMU_OPS_H */ diff --git a/x86emu/x86emu/prim_asm.h b/x86emu/x86emu/prim_asm.h deleted file mode 100644 index e023cf8..0000000 --- a/x86emu/x86emu/prim_asm.h +++ /dev/null @@ -1,970 +0,0 @@ -/**************************************************************************** -* -* Realmode X86 Emulator Library -* -* Copyright (C) 1996-1999 SciTech Software, Inc. -* Copyright (C) David Mosberger-Tang -* Copyright (C) 1999 Egbert Eich -* -* ======================================================================== -* -* Permission to use, copy, modify, distribute, and sell this software and -* its documentation for any purpose is hereby granted without fee, -* provided that the above copyright notice appear in all copies and that -* both that copyright notice and this permission notice appear in -* supporting documentation, and that the name of the authors not be used -* in advertising or publicity pertaining to distribution of the software -* without specific, written prior permission. The authors makes no -* representations about the suitability of this software for any purpose. -* It is provided "as is" without express or implied warranty. -* -* THE AUTHORS DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, -* INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO -* EVENT SHALL THE AUTHORS BE LIABLE FOR ANY SPECIAL, INDIRECT OR -* CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF -* USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR -* OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR -* PERFORMANCE OF THIS SOFTWARE. -* -* ======================================================================== -* -* Language: Watcom C++ 10.6 or later -* Environment: Any -* Developer: Kendall Bennett -* -* Description: Inline assembler versions of the primitive operand -* functions for faster performance. At the moment this is -* x86 inline assembler, but these functions could be replaced -* with native inline assembler for each supported processor -* platform. -* -****************************************************************************/ - -#ifndef __X86EMU_PRIM_ASM_H -#define __X86EMU_PRIM_ASM_H - -#ifdef __WATCOMC__ - -#ifndef VALIDATE -#define __HAVE_INLINE_ASSEMBLER__ -#endif - -u32 get_flags_asm(void); -#pragma aux get_flags_asm = \ - "pushf" \ - "pop eax" \ - value [eax] \ - modify exact [eax]; - -u16 aaa_word_asm(u32 *flags,u16 d); -#pragma aux aaa_word_asm = \ - "push [edi]" \ - "popf" \ - "aaa" \ - "pushf" \ - "pop [edi]" \ - parm [edi] [ax] \ - value [ax] \ - modify exact [ax]; - -u16 aas_word_asm(u32 *flags,u16 d); -#pragma aux aas_word_asm = \ - "push [edi]" \ - "popf" \ - "aas" \ - "pushf" \ - "pop [edi]" \ - parm [edi] [ax] \ - value [ax] \ - modify exact [ax]; - -u16 aad_word_asm(u32 *flags,u16 d); -#pragma aux aad_word_asm = \ - "push [edi]" \ - "popf" \ - "aad" \ - "pushf" \ - "pop [edi]" \ - parm [edi] [ax] \ - value [ax] \ - modify exact [ax]; - -u16 aam_word_asm(u32 *flags,u8 d); -#pragma aux aam_word_asm = \ - "push [edi]" \ - "popf" \ - "aam" \ - "pushf" \ - "pop [edi]" \ - parm [edi] [al] \ - value [ax] \ - modify exact [ax]; - -u8 adc_byte_asm(u32 *flags,u8 d, u8 s); -#pragma aux adc_byte_asm = \ - "push [edi]" \ - "popf" \ - "adc al,bl" \ - "pushf" \ - "pop [edi]" \ - parm [edi] [al] [bl] \ - value [al] \ - modify exact [al bl]; - -u16 adc_word_asm(u32 *flags,u16 d, u16 s); -#pragma aux adc_word_asm = \ - "push [edi]" \ - "popf" \ - "adc ax,bx" \ - "pushf" \ - "pop [edi]" \ - parm [edi] [ax] [bx] \ - value [ax] \ - modify exact [ax bx]; - -u32 adc_long_asm(u32 *flags,u32 d, u32 s); -#pragma aux adc_long_asm = \ - "push [edi]" \ - "popf" \ - "adc eax,ebx" \ - "pushf" \ - "pop [edi]" \ - parm [edi] [eax] [ebx] \ - value [eax] \ - modify exact [eax ebx]; - -u8 add_byte_asm(u32 *flags,u8 d, u8 s); -#pragma aux add_byte_asm = \ - "push [edi]" \ - "popf" \ - "add al,bl" \ - "pushf" \ - "pop [edi]" \ - parm [edi] [al] [bl] \ - value [al] \ - modify exact [al bl]; - -u16 add_word_asm(u32 *flags,u16 d, u16 s); -#pragma aux add_word_asm = \ - "push [edi]" \ - "popf" \ - "add ax,bx" \ - "pushf" \ - "pop [edi]" \ - parm [edi] [ax] [bx] \ - value [ax] \ - modify exact [ax bx]; - -u32 add_long_asm(u32 *flags,u32 d, u32 s); -#pragma aux add_long_asm = \ - "push [edi]" \ - "popf" \ - "add eax,ebx" \ - "pushf" \ - "pop [edi]" \ - parm [edi] [eax] [ebx] \ - value [eax] \ - modify exact [eax ebx]; - -u8 and_byte_asm(u32 *flags,u8 d, u8 s); -#pragma aux and_byte_asm = \ - "push [edi]" \ - "popf" \ - "and al,bl" \ - "pushf" \ - "pop [edi]" \ - parm [edi] [al] [bl] \ - value [al] \ - modify exact [al bl]; - -u16 and_word_asm(u32 *flags,u16 d, u16 s); -#pragma aux and_word_asm = \ - "push [edi]" \ - "popf" \ - "and ax,bx" \ - "pushf" \ - "pop [edi]" \ - parm [edi] [ax] [bx] \ - value [ax] \ - modify exact [ax bx]; - -u32 and_long_asm(u32 *flags,u32 d, u32 s); -#pragma aux and_long_asm = \ - "push [edi]" \ - "popf" \ - "and eax,ebx" \ - "pushf" \ - "pop [edi]" \ - parm [edi] [eax] [ebx] \ - value [eax] \ - modify exact [eax ebx]; - -u8 cmp_byte_asm(u32 *flags,u8 d, u8 s); -#pragma aux cmp_byte_asm = \ - "push [edi]" \ - "popf" \ - "cmp al,bl" \ - "pushf" \ - "pop [edi]" \ - parm [edi] [al] [bl] \ - value [al] \ - modify exact [al bl]; - -u16 cmp_word_asm(u32 *flags,u16 d, u16 s); -#pragma aux cmp_word_asm = \ - "push [edi]" \ - "popf" \ - "cmp ax,bx" \ - "pushf" \ - "pop [edi]" \ - parm [edi] [ax] [bx] \ - value [ax] \ - modify exact [ax bx]; - -u32 cmp_long_asm(u32 *flags,u32 d, u32 s); -#pragma aux cmp_long_asm = \ - "push [edi]" \ - "popf" \ - "cmp eax,ebx" \ - "pushf" \ - "pop [edi]" \ - parm [edi] [eax] [ebx] \ - value [eax] \ - modify exact [eax ebx]; - -u8 daa_byte_asm(u32 *flags,u8 d); -#pragma aux daa_byte_asm = \ - "push [edi]" \ - "popf" \ - "daa" \ - "pushf" \ - "pop [edi]" \ - parm [edi] [al] \ - value [al] \ - modify exact [al]; - -u8 das_byte_asm(u32 *flags,u8 d); -#pragma aux das_byte_asm = \ - "push [edi]" \ - "popf" \ - "das" \ - "pushf" \ - "pop [edi]" \ - parm [edi] [al] \ - value [al] \ - modify exact [al]; - -u8 dec_byte_asm(u32 *flags,u8 d); -#pragma aux dec_byte_asm = \ - "push [edi]" \ - "popf" \ - "dec al" \ - "pushf" \ - "pop [edi]" \ - parm [edi] [al] \ - value [al] \ - modify exact [al]; - -u16 dec_word_asm(u32 *flags,u16 d); -#pragma aux dec_word_asm = \ - "push [edi]" \ - "popf" \ - "dec ax" \ - "pushf" \ - "pop [edi]" \ - parm [edi] [ax] \ - value [ax] \ - modify exact [ax]; - -u32 dec_long_asm(u32 *flags,u32 d); -#pragma aux dec_long_asm = \ - "push [edi]" \ - "popf" \ - "dec eax" \ - "pushf" \ - "pop [edi]" \ - parm [edi] [eax] \ - value [eax] \ - modify exact [eax]; - -u8 inc_byte_asm(u32 *flags,u8 d); -#pragma aux inc_byte_asm = \ - "push [edi]" \ - "popf" \ - "inc al" \ - "pushf" \ - "pop [edi]" \ - parm [edi] [al] \ - value [al] \ - modify exact [al]; - -u16 inc_word_asm(u32 *flags,u16 d); -#pragma aux inc_word_asm = \ - "push [edi]" \ - "popf" \ - "inc ax" \ - "pushf" \ - "pop [edi]" \ - parm [edi] [ax] \ - value [ax] \ - modify exact [ax]; - -u32 inc_long_asm(u32 *flags,u32 d); -#pragma aux inc_long_asm = \ - "push [edi]" \ - "popf" \ - "inc eax" \ - "pushf" \ - "pop [edi]" \ - parm [edi] [eax] \ - value [eax] \ - modify exact [eax]; - -u8 or_byte_asm(u32 *flags,u8 d, u8 s); -#pragma aux or_byte_asm = \ - "push [edi]" \ - "popf" \ - "or al,bl" \ - "pushf" \ - "pop [edi]" \ - parm [edi] [al] [bl] \ - value [al] \ - modify exact [al bl]; - -u16 or_word_asm(u32 *flags,u16 d, u16 s); -#pragma aux or_word_asm = \ - "push [edi]" \ - "popf" \ - "or ax,bx" \ - "pushf" \ - "pop [edi]" \ - parm [edi] [ax] [bx] \ - value [ax] \ - modify exact [ax bx]; - -u32 or_long_asm(u32 *flags,u32 d, u32 s); -#pragma aux or_long_asm = \ - "push [edi]" \ - "popf" \ - "or eax,ebx" \ - "pushf" \ - "pop [edi]" \ - parm [edi] [eax] [ebx] \ - value [eax] \ - modify exact [eax ebx]; - -u8 neg_byte_asm(u32 *flags,u8 d); -#pragma aux neg_byte_asm = \ - "push [edi]" \ - "popf" \ - "neg al" \ - "pushf" \ - "pop [edi]" \ - parm [edi] [al] \ - value [al] \ - modify exact [al]; - -u16 neg_word_asm(u32 *flags,u16 d); -#pragma aux neg_word_asm = \ - "push [edi]" \ - "popf" \ - "neg ax" \ - "pushf" \ - "pop [edi]" \ - parm [edi] [ax] \ - value [ax] \ - modify exact [ax]; - -u32 neg_long_asm(u32 *flags,u32 d); -#pragma aux neg_long_asm = \ - "push [edi]" \ - "popf" \ - "neg eax" \ - "pushf" \ - "pop [edi]" \ - parm [edi] [eax] \ - value [eax] \ - modify exact [eax]; - -u8 not_byte_asm(u32 *flags,u8 d); -#pragma aux not_byte_asm = \ - "push [edi]" \ - "popf" \ - "not al" \ - "pushf" \ - "pop [edi]" \ - parm [edi] [al] \ - value [al] \ - modify exact [al]; - -u16 not_word_asm(u32 *flags,u16 d); -#pragma aux not_word_asm = \ - "push [edi]" \ - "popf" \ - "not ax" \ - "pushf" \ - "pop [edi]" \ - parm [edi] [ax] \ - value [ax] \ - modify exact [ax]; - -u32 not_long_asm(u32 *flags,u32 d); -#pragma aux not_long_asm = \ - "push [edi]" \ - "popf" \ - "not eax" \ - "pushf" \ - "pop [edi]" \ - parm [edi] [eax] \ - value [eax] \ - modify exact [eax]; - -u8 rcl_byte_asm(u32 *flags,u8 d, u8 s); -#pragma aux rcl_byte_asm = \ - "push [edi]" \ - "popf" \ - "rcl al,cl" \ - "pushf" \ - "pop [edi]" \ - parm [edi] [al] [cl] \ - value [al] \ - modify exact [al cl]; - -u16 rcl_word_asm(u32 *flags,u16 d, u8 s); -#pragma aux rcl_word_asm = \ - "push [edi]" \ - "popf" \ - "rcl ax,cl" \ - "pushf" \ - "pop [edi]" \ - parm [edi] [ax] [cl] \ - value [ax] \ - modify exact [ax cl]; - -u32 rcl_long_asm(u32 *flags,u32 d, u8 s); -#pragma aux rcl_long_asm = \ - "push [edi]" \ - "popf" \ - "rcl eax,cl" \ - "pushf" \ - "pop [edi]" \ - parm [edi] [eax] [cl] \ - value [eax] \ - modify exact [eax cl]; - -u8 rcr_byte_asm(u32 *flags,u8 d, u8 s); -#pragma aux rcr_byte_asm = \ - "push [edi]" \ - "popf" \ - "rcr al,cl" \ - "pushf" \ - "pop [edi]" \ - parm [edi] [al] [cl] \ - value [al] \ - modify exact [al cl]; - -u16 rcr_word_asm(u32 *flags,u16 d, u8 s); -#pragma aux rcr_word_asm = \ - "push [edi]" \ - "popf" \ - "rcr ax,cl" \ - "pushf" \ - "pop [edi]" \ - parm [edi] [ax] [cl] \ - value [ax] \ - modify exact [ax cl]; - -u32 rcr_long_asm(u32 *flags,u32 d, u8 s); -#pragma aux rcr_long_asm = \ - "push [edi]" \ - "popf" \ - "rcr eax,cl" \ - "pushf" \ - "pop [edi]" \ - parm [edi] [eax] [cl] \ - value [eax] \ - modify exact [eax cl]; - -u8 rol_byte_asm(u32 *flags,u8 d, u8 s); -#pragma aux rol_byte_asm = \ - "push [edi]" \ - "popf" \ - "rol al,cl" \ - "pushf" \ - "pop [edi]" \ - parm [edi] [al] [cl] \ - value [al] \ - modify exact [al cl]; - -u16 rol_word_asm(u32 *flags,u16 d, u8 s); -#pragma aux rol_word_asm = \ - "push [edi]" \ - "popf" \ - "rol ax,cl" \ - "pushf" \ - "pop [edi]" \ - parm [edi] [ax] [cl] \ - value [ax] \ - modify exact [ax cl]; - -u32 rol_long_asm(u32 *flags,u32 d, u8 s); -#pragma aux rol_long_asm = \ - "push [edi]" \ - "popf" \ - "rol eax,cl" \ - "pushf" \ - "pop [edi]" \ - parm [edi] [eax] [cl] \ - value [eax] \ - modify exact [eax cl]; - -u8 ror_byte_asm(u32 *flags,u8 d, u8 s); -#pragma aux ror_byte_asm = \ - "push [edi]" \ - "popf" \ - "ror al,cl" \ - "pushf" \ - "pop [edi]" \ - parm [edi] [al] [cl] \ - value [al] \ - modify exact [al cl]; - -u16 ror_word_asm(u32 *flags,u16 d, u8 s); -#pragma aux ror_word_asm = \ - "push [edi]" \ - "popf" \ - "ror ax,cl" \ - "pushf" \ - "pop [edi]" \ - parm [edi] [ax] [cl] \ - value [ax] \ - modify exact [ax cl]; - -u32 ror_long_asm(u32 *flags,u32 d, u8 s); -#pragma aux ror_long_asm = \ - "push [edi]" \ - "popf" \ - "ror eax,cl" \ - "pushf" \ - "pop [edi]" \ - parm [edi] [eax] [cl] \ - value [eax] \ - modify exact [eax cl]; - -u8 shl_byte_asm(u32 *flags,u8 d, u8 s); -#pragma aux shl_byte_asm = \ - "push [edi]" \ - "popf" \ - "shl al,cl" \ - "pushf" \ - "pop [edi]" \ - parm [edi] [al] [cl] \ - value [al] \ - modify exact [al cl]; - -u16 shl_word_asm(u32 *flags,u16 d, u8 s); -#pragma aux shl_word_asm = \ - "push [edi]" \ - "popf" \ - "shl ax,cl" \ - "pushf" \ - "pop [edi]" \ - parm [edi] [ax] [cl] \ - value [ax] \ - modify exact [ax cl]; - -u32 shl_long_asm(u32 *flags,u32 d, u8 s); -#pragma aux shl_long_asm = \ - "push [edi]" \ - "popf" \ - "shl eax,cl" \ - "pushf" \ - "pop [edi]" \ - parm [edi] [eax] [cl] \ - value [eax] \ - modify exact [eax cl]; - -u8 shr_byte_asm(u32 *flags,u8 d, u8 s); -#pragma aux shr_byte_asm = \ - "push [edi]" \ - "popf" \ - "shr al,cl" \ - "pushf" \ - "pop [edi]" \ - parm [edi] [al] [cl] \ - value [al] \ - modify exact [al cl]; - -u16 shr_word_asm(u32 *flags,u16 d, u8 s); -#pragma aux shr_word_asm = \ - "push [edi]" \ - "popf" \ - "shr ax,cl" \ - "pushf" \ - "pop [edi]" \ - parm [edi] [ax] [cl] \ - value [ax] \ - modify exact [ax cl]; - -u32 shr_long_asm(u32 *flags,u32 d, u8 s); -#pragma aux shr_long_asm = \ - "push [edi]" \ - "popf" \ - "shr eax,cl" \ - "pushf" \ - "pop [edi]" \ - parm [edi] [eax] [cl] \ - value [eax] \ - modify exact [eax cl]; - -u8 sar_byte_asm(u32 *flags,u8 d, u8 s); -#pragma aux sar_byte_asm = \ - "push [edi]" \ - "popf" \ - "sar al,cl" \ - "pushf" \ - "pop [edi]" \ - parm [edi] [al] [cl] \ - value [al] \ - modify exact [al cl]; - -u16 sar_word_asm(u32 *flags,u16 d, u8 s); -#pragma aux sar_word_asm = \ - "push [edi]" \ - "popf" \ - "sar ax,cl" \ - "pushf" \ - "pop [edi]" \ - parm [edi] [ax] [cl] \ - value [ax] \ - modify exact [ax cl]; - -u32 sar_long_asm(u32 *flags,u32 d, u8 s); -#pragma aux sar_long_asm = \ - "push [edi]" \ - "popf" \ - "sar eax,cl" \ - "pushf" \ - "pop [edi]" \ - parm [edi] [eax] [cl] \ - value [eax] \ - modify exact [eax cl]; - -u16 shld_word_asm(u32 *flags,u16 d, u16 fill, u8 s); -#pragma aux shld_word_asm = \ - "push [edi]" \ - "popf" \ - "shld ax,dx,cl" \ - "pushf" \ - "pop [edi]" \ - parm [edi] [ax] [dx] [cl] \ - value [ax] \ - modify exact [ax dx cl]; - -u32 shld_long_asm(u32 *flags,u32 d, u32 fill, u8 s); -#pragma aux shld_long_asm = \ - "push [edi]" \ - "popf" \ - "shld eax,edx,cl" \ - "pushf" \ - "pop [edi]" \ - parm [edi] [eax] [edx] [cl] \ - value [eax] \ - modify exact [eax edx cl]; - -u16 shrd_word_asm(u32 *flags,u16 d, u16 fill, u8 s); -#pragma aux shrd_word_asm = \ - "push [edi]" \ - "popf" \ - "shrd ax,dx,cl" \ - "pushf" \ - "pop [edi]" \ - parm [edi] [ax] [dx] [cl] \ - value [ax] \ - modify exact [ax dx cl]; - -u32 shrd_long_asm(u32 *flags,u32 d, u32 fill, u8 s); -#pragma aux shrd_long_asm = \ - "push [edi]" \ - "popf" \ - "shrd eax,edx,cl" \ - "pushf" \ - "pop [edi]" \ - parm [edi] [eax] [edx] [cl] \ - value [eax] \ - modify exact [eax edx cl]; - -u8 sbb_byte_asm(u32 *flags,u8 d, u8 s); -#pragma aux sbb_byte_asm = \ - "push [edi]" \ - "popf" \ - "sbb al,bl" \ - "pushf" \ - "pop [edi]" \ - parm [edi] [al] [bl] \ - value [al] \ - modify exact [al bl]; - -u16 sbb_word_asm(u32 *flags,u16 d, u16 s); -#pragma aux sbb_word_asm = \ - "push [edi]" \ - "popf" \ - "sbb ax,bx" \ - "pushf" \ - "pop [edi]" \ - parm [edi] [ax] [bx] \ - value [ax] \ - modify exact [ax bx]; - -u32 sbb_long_asm(u32 *flags,u32 d, u32 s); -#pragma aux sbb_long_asm = \ - "push [edi]" \ - "popf" \ - "sbb eax,ebx" \ - "pushf" \ - "pop [edi]" \ - parm [edi] [eax] [ebx] \ - value [eax] \ - modify exact [eax ebx]; - -u8 sub_byte_asm(u32 *flags,u8 d, u8 s); -#pragma aux sub_byte_asm = \ - "push [edi]" \ - "popf" \ - "sub al,bl" \ - "pushf" \ - "pop [edi]" \ - parm [edi] [al] [bl] \ - value [al] \ - modify exact [al bl]; - -u16 sub_word_asm(u32 *flags,u16 d, u16 s); -#pragma aux sub_word_asm = \ - "push [edi]" \ - "popf" \ - "sub ax,bx" \ - "pushf" \ - "pop [edi]" \ - parm [edi] [ax] [bx] \ - value [ax] \ - modify exact [ax bx]; - -u32 sub_long_asm(u32 *flags,u32 d, u32 s); -#pragma aux sub_long_asm = \ - "push [edi]" \ - "popf" \ - "sub eax,ebx" \ - "pushf" \ - "pop [edi]" \ - parm [edi] [eax] [ebx] \ - value [eax] \ - modify exact [eax ebx]; - -void test_byte_asm(u32 *flags,u8 d, u8 s); -#pragma aux test_byte_asm = \ - "push [edi]" \ - "popf" \ - "test al,bl" \ - "pushf" \ - "pop [edi]" \ - parm [edi] [al] [bl] \ - modify exact [al bl]; - -void test_word_asm(u32 *flags,u16 d, u16 s); -#pragma aux test_word_asm = \ - "push [edi]" \ - "popf" \ - "test ax,bx" \ - "pushf" \ - "pop [edi]" \ - parm [edi] [ax] [bx] \ - modify exact [ax bx]; - -void test_long_asm(u32 *flags,u32 d, u32 s); -#pragma aux test_long_asm = \ - "push [edi]" \ - "popf" \ - "test eax,ebx" \ - "pushf" \ - "pop [edi]" \ - parm [edi] [eax] [ebx] \ - modify exact [eax ebx]; - -u8 xor_byte_asm(u32 *flags,u8 d, u8 s); -#pragma aux xor_byte_asm = \ - "push [edi]" \ - "popf" \ - "xor al,bl" \ - "pushf" \ - "pop [edi]" \ - parm [edi] [al] [bl] \ - value [al] \ - modify exact [al bl]; - -u16 xor_word_asm(u32 *flags,u16 d, u16 s); -#pragma aux xor_word_asm = \ - "push [edi]" \ - "popf" \ - "xor ax,bx" \ - "pushf" \ - "pop [edi]" \ - parm [edi] [ax] [bx] \ - value [ax] \ - modify exact [ax bx]; - -u32 xor_long_asm(u32 *flags,u32 d, u32 s); -#pragma aux xor_long_asm = \ - "push [edi]" \ - "popf" \ - "xor eax,ebx" \ - "pushf" \ - "pop [edi]" \ - parm [edi] [eax] [ebx] \ - value [eax] \ - modify exact [eax ebx]; - -void imul_byte_asm(u32 *flags,u16 *ax,u8 d,u8 s); -#pragma aux imul_byte_asm = \ - "push [edi]" \ - "popf" \ - "imul bl" \ - "pushf" \ - "pop [edi]" \ - "mov [esi],ax" \ - parm [edi] [esi] [al] [bl] \ - modify exact [esi ax bl]; - -void imul_word_asm(u32 *flags,u16 *ax,u16 *dx,u16 d,u16 s); -#pragma aux imul_word_asm = \ - "push [edi]" \ - "popf" \ - "imul bx" \ - "pushf" \ - "pop [edi]" \ - "mov [esi],ax" \ - "mov [ecx],dx" \ - parm [edi] [esi] [ecx] [ax] [bx]\ - modify exact [esi edi ax bx dx]; - -void imul_long_asm(u32 *flags,u32 *eax,u32 *edx,u32 d,u32 s); -#pragma aux imul_long_asm = \ - "push [edi]" \ - "popf" \ - "imul ebx" \ - "pushf" \ - "pop [edi]" \ - "mov [esi],eax" \ - "mov [ecx],edx" \ - parm [edi] [esi] [ecx] [eax] [ebx] \ - modify exact [esi edi eax ebx edx]; - -void mul_byte_asm(u32 *flags,u16 *ax,u8 d,u8 s); -#pragma aux mul_byte_asm = \ - "push [edi]" \ - "popf" \ - "mul bl" \ - "pushf" \ - "pop [edi]" \ - "mov [esi],ax" \ - parm [edi] [esi] [al] [bl] \ - modify exact [esi ax bl]; - -void mul_word_asm(u32 *flags,u16 *ax,u16 *dx,u16 d,u16 s); -#pragma aux mul_word_asm = \ - "push [edi]" \ - "popf" \ - "mul bx" \ - "pushf" \ - "pop [edi]" \ - "mov [esi],ax" \ - "mov [ecx],dx" \ - parm [edi] [esi] [ecx] [ax] [bx]\ - modify exact [esi edi ax bx dx]; - -void mul_long_asm(u32 *flags,u32 *eax,u32 *edx,u32 d,u32 s); -#pragma aux mul_long_asm = \ - "push [edi]" \ - "popf" \ - "mul ebx" \ - "pushf" \ - "pop [edi]" \ - "mov [esi],eax" \ - "mov [ecx],edx" \ - parm [edi] [esi] [ecx] [eax] [ebx] \ - modify exact [esi edi eax ebx edx]; - -void idiv_byte_asm(u32 *flags,u8 *al,u8 *ah,u16 d,u8 s); -#pragma aux idiv_byte_asm = \ - "push [edi]" \ - "popf" \ - "idiv bl" \ - "pushf" \ - "pop [edi]" \ - "mov [esi],al" \ - "mov [ecx],ah" \ - parm [edi] [esi] [ecx] [ax] [bl]\ - modify exact [esi edi ax bl]; - -void idiv_word_asm(u32 *flags,u16 *ax,u16 *dx,u16 dlo,u16 dhi,u16 s); -#pragma aux idiv_word_asm = \ - "push [edi]" \ - "popf" \ - "idiv bx" \ - "pushf" \ - "pop [edi]" \ - "mov [esi],ax" \ - "mov [ecx],dx" \ - parm [edi] [esi] [ecx] [ax] [dx] [bx]\ - modify exact [esi edi ax dx bx]; - -void idiv_long_asm(u32 *flags,u32 *eax,u32 *edx,u32 dlo,u32 dhi,u32 s); -#pragma aux idiv_long_asm = \ - "push [edi]" \ - "popf" \ - "idiv ebx" \ - "pushf" \ - "pop [edi]" \ - "mov [esi],eax" \ - "mov [ecx],edx" \ - parm [edi] [esi] [ecx] [eax] [edx] [ebx]\ - modify exact [esi edi eax edx ebx]; - -void div_byte_asm(u32 *flags,u8 *al,u8 *ah,u16 d,u8 s); -#pragma aux div_byte_asm = \ - "push [edi]" \ - "popf" \ - "div bl" \ - "pushf" \ - "pop [edi]" \ - "mov [esi],al" \ - "mov [ecx],ah" \ - parm [edi] [esi] [ecx] [ax] [bl]\ - modify exact [esi edi ax bl]; - -void div_word_asm(u32 *flags,u16 *ax,u16 *dx,u16 dlo,u16 dhi,u16 s); -#pragma aux div_word_asm = \ - "push [edi]" \ - "popf" \ - "div bx" \ - "pushf" \ - "pop [edi]" \ - "mov [esi],ax" \ - "mov [ecx],dx" \ - parm [edi] [esi] [ecx] [ax] [dx] [bx]\ - modify exact [esi edi ax dx bx]; - -void div_long_asm(u32 *flags,u32 *eax,u32 *edx,u32 dlo,u32 dhi,u32 s); -#pragma aux div_long_asm = \ - "push [edi]" \ - "popf" \ - "div ebx" \ - "pushf" \ - "pop [edi]" \ - "mov [esi],eax" \ - "mov [ecx],edx" \ - parm [edi] [esi] [ecx] [eax] [edx] [ebx]\ - modify exact [esi edi eax edx ebx]; - -#endif - -#endif /* __X86EMU_PRIM_ASM_H */ diff --git a/x86emu/x86emu/prim_ops.h b/x86emu/x86emu/prim_ops.h deleted file mode 100644 index 6ac2a29..0000000 --- a/x86emu/x86emu/prim_ops.h +++ /dev/null @@ -1,142 +0,0 @@ -/**************************************************************************** -* -* Realmode X86 Emulator Library -* -* Copyright (C) 1996-1999 SciTech Software, Inc. -* Copyright (C) David Mosberger-Tang -* Copyright (C) 1999 Egbert Eich -* -* ======================================================================== -* -* Permission to use, copy, modify, distribute, and sell this software and -* its documentation for any purpose is hereby granted without fee, -* provided that the above copyright notice appear in all copies and that -* both that copyright notice and this permission notice appear in -* supporting documentation, and that the name of the authors not be used -* in advertising or publicity pertaining to distribution of the software -* without specific, written prior permission. The authors makes no -* representations about the suitability of this software for any purpose. -* It is provided "as is" without express or implied warranty. -* -* THE AUTHORS DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, -* INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO -* EVENT SHALL THE AUTHORS BE LIABLE FOR ANY SPECIAL, INDIRECT OR -* CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF -* USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR -* OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR -* PERFORMANCE OF THIS SOFTWARE. -* -* ======================================================================== -* -* Language: ANSI C -* Environment: Any -* Developer: Kendall Bennett -* -* Description: Header file for primitive operation functions. -* -****************************************************************************/ - -#ifndef __X86EMU_PRIM_OPS_H -#define __X86EMU_PRIM_OPS_H - -#ifdef __cplusplus -extern "C" { /* Use "C" linkage when in C++ mode */ -#endif - -u16 aaa_word (u16 d); -u16 aas_word (u16 d); -u16 aad_word (u16 d); -u16 aam_word (u8 d); -u8 adc_byte (u8 d, u8 s); -u16 adc_word (u16 d, u16 s); -u32 adc_long (u32 d, u32 s); -u8 add_byte (u8 d, u8 s); -u16 add_word (u16 d, u16 s); -u32 add_long (u32 d, u32 s); -u8 and_byte (u8 d, u8 s); -u16 and_word (u16 d, u16 s); -u32 and_long (u32 d, u32 s); -u8 cmp_byte (u8 d, u8 s); -u16 cmp_word (u16 d, u16 s); -u32 cmp_long (u32 d, u32 s); -u8 daa_byte (u8 d); -u8 das_byte (u8 d); -u8 dec_byte (u8 d); -u16 dec_word (u16 d); -u32 dec_long (u32 d); -u8 inc_byte (u8 d); -u16 inc_word (u16 d); -u32 inc_long (u32 d); -u8 or_byte (u8 d, u8 s); -u16 or_word (u16 d, u16 s); -u32 or_long (u32 d, u32 s); -u8 neg_byte (u8 s); -u16 neg_word (u16 s); -u32 neg_long (u32 s); -u8 not_byte (u8 s); -u16 not_word (u16 s); -u32 not_long (u32 s); -u8 rcl_byte (u8 d, u8 s); -u16 rcl_word (u16 d, u8 s); -u32 rcl_long (u32 d, u8 s); -u8 rcr_byte (u8 d, u8 s); -u16 rcr_word (u16 d, u8 s); -u32 rcr_long (u32 d, u8 s); -u8 rol_byte (u8 d, u8 s); -u16 rol_word (u16 d, u8 s); -u32 rol_long (u32 d, u8 s); -u8 ror_byte (u8 d, u8 s); -u16 ror_word (u16 d, u8 s); -u32 ror_long (u32 d, u8 s); -u8 shl_byte (u8 d, u8 s); -u16 shl_word (u16 d, u8 s); -u32 shl_long (u32 d, u8 s); -u8 shr_byte (u8 d, u8 s); -u16 shr_word (u16 d, u8 s); -u32 shr_long (u32 d, u8 s); -u8 sar_byte (u8 d, u8 s); -u16 sar_word (u16 d, u8 s); -u32 sar_long (u32 d, u8 s); -u16 shld_word (u16 d, u16 fill, u8 s); -u32 shld_long (u32 d, u32 fill, u8 s); -u16 shrd_word (u16 d, u16 fill, u8 s); -u32 shrd_long (u32 d, u32 fill, u8 s); -u8 sbb_byte (u8 d, u8 s); -u16 sbb_word (u16 d, u16 s); -u32 sbb_long (u32 d, u32 s); -u8 sub_byte (u8 d, u8 s); -u16 sub_word (u16 d, u16 s); -u32 sub_long (u32 d, u32 s); -void test_byte (u8 d, u8 s); -void test_word (u16 d, u16 s); -void test_long (u32 d, u32 s); -u8 xor_byte (u8 d, u8 s); -u16 xor_word (u16 d, u16 s); -u32 xor_long (u32 d, u32 s); -void imul_byte (u8 s); -void imul_word (u16 s); -void imul_long (u32 s); -void imul_long_direct(u32 *res_lo, u32* res_hi,u32 d, u32 s); -void mul_byte (u8 s); -void mul_word (u16 s); -void mul_long (u32 s); -void idiv_byte (u8 s); -void idiv_word (u16 s); -void idiv_long (u32 s); -void div_byte (u8 s); -void div_word (u16 s); -void div_long (u32 s); -void ins (int size); -void outs (int size); -u16 mem_access_word (int addr); -void push_word (u16 w); -void push_long (u32 w); -u16 pop_word (void); -u32 pop_long (void); -void cpuid (void); - -#ifdef __cplusplus -} /* End of "C" linkage for C++ */ -#endif - -#endif /* __X86EMU_PRIM_OPS_H */ diff --git a/x86emu/x86emu/prim_x86_gcc.h b/x86emu/x86emu/prim_x86_gcc.h deleted file mode 100644 index 5530a3a..0000000 --- a/x86emu/x86emu/prim_x86_gcc.h +++ /dev/null @@ -1,79 +0,0 @@ -/**************************************************************************** -* -* Inline helpers for x86emu -* -* Copyright (C) 2008 Bart Trojanowski, Symbio Technologies, LLC -* -* ======================================================================== -* -* Permission to use, copy, modify, distribute, and sell this software and -* its documentation for any purpose is hereby granted without fee, -* provided that the above copyright notice appear in all copies and that -* both that copyright notice and this permission notice appear in -* supporting documentation, and that the name of the authors not be used -* in advertising or publicity pertaining to distribution of the software -* without specific, written prior permission. The authors makes no -* representations about the suitability of this software for any purpose. -* It is provided "as is" without express or implied warranty. -* -* THE AUTHORS DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, -* INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO -* EVENT SHALL THE AUTHORS BE LIABLE FOR ANY SPECIAL, INDIRECT OR -* CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF -* USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR -* OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR -* PERFORMANCE OF THIS SOFTWARE. -* -* ======================================================================== -* -* Language: GNU C -* Environment: GCC on i386 or x86-64 -* Developer: Bart Trojanowski -* -* Description: This file defines a few x86 macros that can be used by the -* emulator to execute native instructions. -* -* For PIC vs non-PIC code refer to: -* http://sam.zoy.org/blog/2007-04-13-shlib-with-non-pic-code-have-inline-assembly-and-pic-mix-well -* -****************************************************************************/ -#ifndef __X86EMU_PRIM_X86_GCC_H -#define __X86EMU_PRIM_X86_GCC_H - -#include "x86emu/types.h" - -#if !defined(__GNUC__) || !(defined (__i386__) || defined(__i386) || defined(__AMD64__) || defined(__amd64__)) -#error This file is intended to be used by gcc on i386 or x86-64 system -#endif - -#if defined(__PIC__) && defined(__i386__) - -#define X86EMU_HAS_HW_CPUID 1 -static inline void hw_cpuid (u32 *a, u32 *b, u32 *c, u32 *d) -{ - __asm__ __volatile__ ("pushl %%ebx \n\t" - "cpuid \n\t" - "movl %%ebx, %1 \n\t" - "popl %%ebx \n\t" - : "=a" (*a), "=r" (*b), - "=c" (*c), "=d" (*d) - : "a" (*a), "c" (*c) - : "cc"); -} - -#else // ! (__PIC__ && __i386__) - -#define x86EMU_HAS_HW_CPUID 1 -static inline void hw_cpuid (u32 *a, u32 *b, u32 *c, u32 *d) -{ - __asm__ __volatile__ ("cpuid" - : "=a" (*a), "=b" (*b), - "=c" (*c), "=d" (*d) - : "a" (*a), "c" (*c) - : "cc"); -} - -#endif // __PIC__ && __i386__ - - -#endif // __X86EMU_PRIM_X86_GCC_H diff --git a/x86emu/x86emu/regs.h b/x86emu/x86emu/regs.h deleted file mode 100644 index 52cf8e4..0000000 --- a/x86emu/x86emu/regs.h +++ /dev/null @@ -1,337 +0,0 @@ -/**************************************************************************** -* -* Realmode X86 Emulator Library -* -* Copyright (C) 1996-1999 SciTech Software, Inc. -* Copyright (C) David Mosberger-Tang -* Copyright (C) 1999 Egbert Eich -* -* ======================================================================== -* -* Permission to use, copy, modify, distribute, and sell this software and -* its documentation for any purpose is hereby granted without fee, -* provided that the above copyright notice appear in all copies and that -* both that copyright notice and this permission notice appear in -* supporting documentation, and that the name of the authors not be used -* in advertising or publicity pertaining to distribution of the software -* without specific, written prior permission. The authors makes no -* representations about the suitability of this software for any purpose. -* It is provided "as is" without express or implied warranty. -* -* THE AUTHORS DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, -* INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO -* EVENT SHALL THE AUTHORS BE LIABLE FOR ANY SPECIAL, INDIRECT OR -* CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF -* USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR -* OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR -* PERFORMANCE OF THIS SOFTWARE. -* -* ======================================================================== -* -* Language: ANSI C -* Environment: Any -* Developer: Kendall Bennett -* -* Description: Header file for x86 register definitions. -* -****************************************************************************/ - -#ifndef __X86EMU_REGS_H -#define __X86EMU_REGS_H - -/*---------------------- Macros and type definitions ----------------------*/ - -#ifdef PACK -# pragma PACK -#endif - -/* - * General EAX, EBX, ECX, EDX type registers. Note that for - * portability, and speed, the issue of byte swapping is not addressed - * in the registers. All registers are stored in the default format - * available on the host machine. The only critical issue is that the - * registers should line up EXACTLY in the same manner as they do in - * the 386. That is: - * - * EAX & 0xff === AL - * EAX & 0xffff == AX - * - * etc. The result is that alot of the calculations can then be - * done using the native instruction set fully. - */ - -#ifdef __BIG_ENDIAN__ - -typedef struct { - u32 e_reg; - } I32_reg_t; - -typedef struct { - u16 filler0, x_reg; - } I16_reg_t; - -typedef struct { - u8 filler0, filler1, h_reg, l_reg; - } I8_reg_t; - -#else /* !__BIG_ENDIAN__ */ - -typedef struct { - u32 e_reg; - } I32_reg_t; - -typedef struct { - u16 x_reg; - } I16_reg_t; - -typedef struct { - u8 l_reg, h_reg; - } I8_reg_t; - -#endif /* BIG_ENDIAN */ - -typedef union { - I32_reg_t I32_reg; - I16_reg_t I16_reg; - I8_reg_t I8_reg; - } i386_general_register; - -struct i386_general_regs { - i386_general_register A, B, C, D; - }; - -typedef struct i386_general_regs Gen_reg_t; - -struct i386_special_regs { - i386_general_register SP, BP, SI, DI, IP; - u32 FLAGS; - }; - -/* - * Segment registers here represent the 16 bit quantities - * CS, DS, ES, SS. - */ - -struct i386_segment_regs { - u16 CS, DS, SS, ES, FS, GS; - }; - -/* 8 bit registers */ -#define R_AH gen.A.I8_reg.h_reg -#define R_AL gen.A.I8_reg.l_reg -#define R_BH gen.B.I8_reg.h_reg -#define R_BL gen.B.I8_reg.l_reg -#define R_CH gen.C.I8_reg.h_reg -#define R_CL gen.C.I8_reg.l_reg -#define R_DH gen.D.I8_reg.h_reg -#define R_DL gen.D.I8_reg.l_reg - -/* 16 bit registers */ -#define R_AX gen.A.I16_reg.x_reg -#define R_BX gen.B.I16_reg.x_reg -#define R_CX gen.C.I16_reg.x_reg -#define R_DX gen.D.I16_reg.x_reg - -/* 32 bit extended registers */ -#define R_EAX gen.A.I32_reg.e_reg -#define R_EBX gen.B.I32_reg.e_reg -#define R_ECX gen.C.I32_reg.e_reg -#define R_EDX gen.D.I32_reg.e_reg - -/* special registers */ -#define R_SP spc.SP.I16_reg.x_reg -#define R_BP spc.BP.I16_reg.x_reg -#define R_SI spc.SI.I16_reg.x_reg -#define R_DI spc.DI.I16_reg.x_reg -#define R_IP spc.IP.I16_reg.x_reg -#define R_FLG spc.FLAGS - -/* special registers */ -#define R_SP spc.SP.I16_reg.x_reg -#define R_BP spc.BP.I16_reg.x_reg -#define R_SI spc.SI.I16_reg.x_reg -#define R_DI spc.DI.I16_reg.x_reg -#define R_IP spc.IP.I16_reg.x_reg -#define R_FLG spc.FLAGS - -/* special registers */ -#define R_ESP spc.SP.I32_reg.e_reg -#define R_EBP spc.BP.I32_reg.e_reg -#define R_ESI spc.SI.I32_reg.e_reg -#define R_EDI spc.DI.I32_reg.e_reg -#define R_EIP spc.IP.I32_reg.e_reg -#define R_EFLG spc.FLAGS - -/* segment registers */ -#define R_CS seg.CS -#define R_DS seg.DS -#define R_SS seg.SS -#define R_ES seg.ES -#define R_FS seg.FS -#define R_GS seg.GS - -/* flag conditions */ -#define FB_CF 0x0001 /* CARRY flag */ -#define FB_PF 0x0004 /* PARITY flag */ -#define FB_AF 0x0010 /* AUX flag */ -#define FB_ZF 0x0040 /* ZERO flag */ -#define FB_SF 0x0080 /* SIGN flag */ -#define FB_TF 0x0100 /* TRAP flag */ -#define FB_IF 0x0200 /* INTERRUPT ENABLE flag */ -#define FB_DF 0x0400 /* DIR flag */ -#define FB_OF 0x0800 /* OVERFLOW flag */ - -/* 80286 and above always have bit#1 set */ -#define F_ALWAYS_ON (0x0002) /* flag bits always on */ - -/* - * Define a mask for only those flag bits we will ever pass back - * (via PUSHF) - */ -#define F_MSK (FB_CF|FB_PF|FB_AF|FB_ZF|FB_SF|FB_TF|FB_IF|FB_DF|FB_OF) - -/* following bits masked in to a 16bit quantity */ - -#define F_CF 0x0001 /* CARRY flag */ -#define F_PF 0x0004 /* PARITY flag */ -#define F_AF 0x0010 /* AUX flag */ -#define F_ZF 0x0040 /* ZERO flag */ -#define F_SF 0x0080 /* SIGN flag */ -#define F_TF 0x0100 /* TRAP flag */ -#define F_IF 0x0200 /* INTERRUPT ENABLE flag */ -#define F_DF 0x0400 /* DIR flag */ -#define F_OF 0x0800 /* OVERFLOW flag */ - -#define TOGGLE_FLAG(flag) (M.x86.R_FLG ^= (flag)) -#define SET_FLAG(flag) (M.x86.R_FLG |= (flag)) -#define CLEAR_FLAG(flag) (M.x86.R_FLG &= ~(flag)) -#define ACCESS_FLAG(flag) (M.x86.R_FLG & (flag)) -#define CLEARALL_FLAG(m) (M.x86.R_FLG = 0) - -#define CONDITIONAL_SET_FLAG(COND,FLAG) \ - if (COND) SET_FLAG(FLAG); else CLEAR_FLAG(FLAG) - -#define F_PF_CALC 0x010000 /* PARITY flag has been calced */ -#define F_ZF_CALC 0x020000 /* ZERO flag has been calced */ -#define F_SF_CALC 0x040000 /* SIGN flag has been calced */ - -#define F_ALL_CALC 0xff0000 /* All have been calced */ - -/* - * Emulator machine state. - * Segment usage control. - */ -#define SYSMODE_SEG_DS_SS 0x00000001 -#define SYSMODE_SEGOVR_CS 0x00000002 -#define SYSMODE_SEGOVR_DS 0x00000004 -#define SYSMODE_SEGOVR_ES 0x00000008 -#define SYSMODE_SEGOVR_FS 0x00000010 -#define SYSMODE_SEGOVR_GS 0x00000020 -#define SYSMODE_SEGOVR_SS 0x00000040 -#define SYSMODE_PREFIX_REPE 0x00000080 -#define SYSMODE_PREFIX_REPNE 0x00000100 -#define SYSMODE_PREFIX_DATA 0x00000200 -#define SYSMODE_PREFIX_ADDR 0x00000400 -#define SYSMODE_INTR_PENDING 0x10000000 -#define SYSMODE_EXTRN_INTR 0x20000000 -#define SYSMODE_HALTED 0x40000000 - -#define SYSMODE_SEGMASK (SYSMODE_SEG_DS_SS | \ - SYSMODE_SEGOVR_CS | \ - SYSMODE_SEGOVR_DS | \ - SYSMODE_SEGOVR_ES | \ - SYSMODE_SEGOVR_FS | \ - SYSMODE_SEGOVR_GS | \ - SYSMODE_SEGOVR_SS) -#define SYSMODE_CLRMASK (SYSMODE_SEG_DS_SS | \ - SYSMODE_SEGOVR_CS | \ - SYSMODE_SEGOVR_DS | \ - SYSMODE_SEGOVR_ES | \ - SYSMODE_SEGOVR_FS | \ - SYSMODE_SEGOVR_GS | \ - SYSMODE_SEGOVR_SS | \ - SYSMODE_PREFIX_DATA | \ - SYSMODE_PREFIX_ADDR) - -#define INTR_SYNCH 0x1 -#define INTR_ASYNCH 0x2 -#define INTR_HALTED 0x4 - -typedef struct { - struct i386_general_regs gen; - struct i386_special_regs spc; - struct i386_segment_regs seg; - /* - * MODE contains information on: - * REPE prefix 2 bits repe,repne - * SEGMENT overrides 5 bits normal,DS,SS,CS,ES - * Delayed flag set 3 bits (zero, signed, parity) - * reserved 6 bits - * interrupt # 8 bits instruction raised interrupt - * BIOS video segregs 4 bits - * Interrupt Pending 1 bits - * Extern interrupt 1 bits - * Halted 1 bits - */ - u32 mode; - volatile int intr; /* mask of pending interrupts */ - int debug; -#ifdef DEBUG - int check; - u16 saved_ip; - u16 saved_cs; - int enc_pos; - int enc_str_pos; - char decode_buf[32]; /* encoded byte stream */ - char decoded_buf[256]; /* disassembled strings */ -#endif - u8 intno; - u8 __pad[3]; - } X86EMU_regs; - -/**************************************************************************** -REMARKS: -Structure maintaining the emulator machine state. - -MEMBERS: -mem_base - Base real mode memory for the emulator -mem_size - Size of the real mode memory block for the emulator -private - private data pointer -x86 - X86 registers -****************************************************************************/ -typedef struct { - unsigned long mem_base; - unsigned long mem_size; - void* private; - X86EMU_regs x86; - } X86EMU_sysEnv; - -#ifdef END_PACK -# pragma END_PACK -#endif - -/*----------------------------- Global Variables --------------------------*/ - -#ifdef __cplusplus -extern "C" { /* Use "C" linkage when in C++ mode */ -#endif - -/* Global emulator machine state. - * - * We keep it global to avoid pointer dereferences in the code for speed. - */ - -extern X86EMU_sysEnv _X86EMU_env; -#define M _X86EMU_env - -/*-------------------------- Function Prototypes --------------------------*/ - -/* Function to log information at runtime */ - -void printk(const char *fmt, ...); - -#ifdef __cplusplus -} /* End of "C" linkage for C++ */ -#endif - -#endif /* __X86EMU_REGS_H */ diff --git a/x86emu/x86emu/types.h b/x86emu/x86emu/types.h deleted file mode 100644 index c18e11c..0000000 --- a/x86emu/x86emu/types.h +++ /dev/null @@ -1,105 +0,0 @@ -/**************************************************************************** -* -* Realmode X86 Emulator Library -* -* Copyright (C) 1996-1999 SciTech Software, Inc. -* Copyright (C) David Mosberger-Tang -* Copyright (C) 1999 Egbert Eich -* -* ======================================================================== -* -* Permission to use, copy, modify, distribute, and sell this software and -* its documentation for any purpose is hereby granted without fee, -* provided that the above copyright notice appear in all copies and that -* both that copyright notice and this permission notice appear in -* supporting documentation, and that the name of the authors not be used -* in advertising or publicity pertaining to distribution of the software -* without specific, written prior permission. The authors makes no -* representations about the suitability of this software for any purpose. -* It is provided "as is" without express or implied warranty. -* -* THE AUTHORS DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, -* INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO -* EVENT SHALL THE AUTHORS BE LIABLE FOR ANY SPECIAL, INDIRECT OR -* CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF -* USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR -* OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR -* PERFORMANCE OF THIS SOFTWARE. -* -* ======================================================================== -* -* Language: ANSI C -* Environment: Any -* Developer: Kendall Bennett -* -* Description: Header file for x86 emulator type definitions. -* -****************************************************************************/ - - -#ifndef __X86EMU_TYPES_H -#define __X86EMU_TYPES_H - -#ifndef NO_SYS_HEADERS -#include -#endif - -/* - * The following kludge is an attempt to work around typedef conflicts with - * . - */ -#define u8 x86emuu8 -#define u16 x86emuu16 -#define u32 x86emuu32 -#define u64 x86emuu64 -#define s8 x86emus8 -#define s16 x86emus16 -#define s32 x86emus32 -#define s64 x86emus64 -#define uint x86emuuint -#define sint x86emusint - -/*---------------------- Macros and type definitions ----------------------*/ - -/* Currently only for Linux/32bit */ -#undef __HAS_LONG_LONG__ -#if defined(__GNUC__) && !defined(NO_LONG_LONG) -#define __HAS_LONG_LONG__ -#endif - -/* Taken from Xmd.h */ -#undef NUM32 -#if defined (_LP64) || \ - defined(__alpha) || defined(__alpha__) || \ - defined(__ia64__) || defined(ia64) || \ - defined(__sparc64__) || \ - defined(__s390x__) || \ - defined(__hppa__) && defined(__LP64) || \ - defined(__amd64__) || defined(amd64) -#define NUM32 int -#else -#define NUM32 long -#endif - -typedef unsigned char u8; -typedef unsigned short u16; -typedef unsigned NUM32 u32; -#ifdef __HAS_LONG_LONG__ -typedef unsigned long long u64; -#endif - -typedef char s8; -typedef short s16; -typedef NUM32 s32; -#ifdef __HAS_LONG_LONG__ -typedef long long s64; -#endif - -typedef unsigned int uint; -typedef int sint; - -typedef u16 X86EMU_pioAddr; - -#undef NUM32 - -#endif /* __X86EMU_TYPES_H */ diff --git a/x86emu/x86emu/x86emui.h b/x86emu/x86emu/x86emui.h deleted file mode 100644 index 112ee36..0000000 --- a/x86emu/x86emu/x86emui.h +++ /dev/null @@ -1,102 +0,0 @@ -/**************************************************************************** -* -* Realmode X86 Emulator Library -* -* Copyright (C) 1996-1999 SciTech Software, Inc. -* Copyright (C) David Mosberger-Tang -* Copyright (C) 1999 Egbert Eich -* -* ======================================================================== -* -* Permission to use, copy, modify, distribute, and sell this software and -* its documentation for any purpose is hereby granted without fee, -* provided that the above copyright notice appear in all copies and that -* both that copyright notice and this permission notice appear in -* supporting documentation, and that the name of the authors not be used -* in advertising or publicity pertaining to distribution of the software -* without specific, written prior permission. The authors makes no -* representations about the suitability of this software for any purpose. -* It is provided "as is" without express or implied warranty. -* -* THE AUTHORS DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, -* INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO -* EVENT SHALL THE AUTHORS BE LIABLE FOR ANY SPECIAL, INDIRECT OR -* CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF -* USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR -* OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR -* PERFORMANCE OF THIS SOFTWARE. -* -* ======================================================================== -* -* Language: ANSI C -* Environment: Any -* Developer: Kendall Bennett -* -* Description: Header file for system specific functions. These functions -* are always compiled and linked in the OS depedent libraries, -* and never in a binary portable driver. -* -****************************************************************************/ - - -#ifndef __X86EMU_X86EMUI_H -#define __X86EMU_X86EMUI_H - -/* If we are compiling in C++ mode, we can compile some functions as - * inline to increase performance (however the code size increases quite - * dramatically in this case). - */ - -#if defined(__cplusplus) && !defined(_NO_INLINE) -#define _INLINE inline -#else -#define _INLINE static -#endif - -/* Get rid of unused parameters in C++ compilation mode */ - -#ifdef __cplusplus -#define X86EMU_UNUSED(v) -#else -#define X86EMU_UNUSED(v) v -#endif - -#include "x86emu.h" -#include "x86emu/regs.h" -#include "x86emu/debug.h" -#include "x86emu/decode.h" -#include "x86emu/ops.h" -#include "x86emu/prim_ops.h" -#include "x86emu/fpu.h" -#include "x86emu/fpu_regs.h" - -#ifndef NO_SYS_HEADERS -#include -#include -#include -#endif -/*--------------------------- Inline Functions ----------------------------*/ - -#ifdef __cplusplus -extern "C" { /* Use "C" linkage when in C++ mode */ -#endif - -extern u8 (X86APIP sys_rdb)(u32 addr); -extern u16 (X86APIP sys_rdw)(u32 addr); -extern u32 (X86APIP sys_rdl)(u32 addr); -extern void (X86APIP sys_wrb)(u32 addr,u8 val); -extern void (X86APIP sys_wrw)(u32 addr,u16 val); -extern void (X86APIP sys_wrl)(u32 addr,u32 val); - -extern u8 (X86APIP sys_inb)(X86EMU_pioAddr addr); -extern u16 (X86APIP sys_inw)(X86EMU_pioAddr addr); -extern u32 (X86APIP sys_inl)(X86EMU_pioAddr addr); -extern void (X86APIP sys_outb)(X86EMU_pioAddr addr,u8 val); -extern void (X86APIP sys_outw)(X86EMU_pioAddr addr,u16 val); -extern void (X86APIP sys_outl)(X86EMU_pioAddr addr,u32 val); - -#ifdef __cplusplus -} /* End of "C" linkage for C++ */ -#endif - -#endif /* __X86EMU_X86EMUI_H */ -- cgit v1.2.1