diff options
Diffstat (limited to 'mdk-stage1/dietlibc/i386/ceil.S')
| -rw-r--r-- | mdk-stage1/dietlibc/i386/ceil.S | 44 |
1 files changed, 44 insertions, 0 deletions
diff --git a/mdk-stage1/dietlibc/i386/ceil.S b/mdk-stage1/dietlibc/i386/ceil.S new file mode 100644 index 000000000..e6a4e989c --- /dev/null +++ b/mdk-stage1/dietlibc/i386/ceil.S @@ -0,0 +1,44 @@ +.text + +.global ceilf,ceil,ceill,__flcetr + .type ceilf,@function + .type ceil,@function + .type ceill,@function + .type __flcetr,@function + +ceilf: + flds 4(%esp) + movb $0x08,%ah + jmp __flcetr + +ceill: + fldt 4(%esp) + movb $0x08,%ah + jmp __flcetr + +ceil: + fldl 4(%esp) + movb $0x08,%ah + +# Wspolny kod dla funkcji floor, ceil i trunc +# W ah maska bitow 11 i 10 rejestru sterowania koprocesora +__flcetr: + xorl %ecx,%ecx # wyzerowanie rejestru + movb %ah,%ch # i utworzenie maski w cx + pushl %eax # krotsze niz subl $4,%esp + fstcw (%esp) + movw (%esp),%ax + andb $0x03,%ah # wyzerowanie bitow 11 i 10 + orl %ecx,%eax # ustawienie bitow z maski + movw %ax,2(%esp) + fldcw 2(%esp) + frndint + fldcw (%esp) # odtworzenie rejestru sterowania + popl %eax # i polozenia stosu + ret + +.Lende: +.size ceil,.Lende-ceil +.size ceill,.Lende-ceill +.size ceilf,.Lende-ceilf +.size flcetr,.Lende-__flcetr |