Add remaining x86 CPU emulator bits

1 files changed, 199 insertions, 0 deletions

diff --git a/tools/ddcprobe/x86emu/include/x86emu.h b/tools/ddcprobe/x86emu/include/x86emu.h
new file mode 100644
index 000000000..d9150f013
--- /dev/null
+++ b/tools/ddcprobe/x86emu/include/x86emu.h
@@ -0,0 +1,199 @@
+/****************************************************************************
+*
+*						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
+*
+****************************************************************************/
+/* $XFree86$ */
+
+#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 */