Quelle setprec.387 Sprache: unbekannt

/* Set 80387 floating point hardware rounding precision */

.file "setprec.387"
.text
.align 2

.globl _sprec
_sprec:
pushl %ebp
movl %esp,%ebp
pushl %eax
subl $4,%esp
fstcw (%esp)
fwait
movl (%esp),%eax
andl $0xfcff,%eax
movl %eax,(%esp)
fldcw (%esp)
popl %eax
popl %eax
leave
ret

.align 2

.globl _dprec
_dprec:
pushl %ebp
movl %esp,%ebp
pushl %eax
subl $4,%esp
fstcw (%esp)
fwait
movl (%esp),%eax
andl $0xfcff,%eax
orl $0x200,%eax
movl %eax,(%esp)
fldcw (%esp)
popl %eax
popl %eax
leave
ret

.align 2

.globl _ldprec
_ldprec:
pushl %ebp
movl %esp,%ebp
pushl %eax
subl $4,%esp
fstcw (%esp)
fwait
movl (%esp),%eax
orl $0x300,%eax
movl %eax,(%esp)
fldcw (%esp)
popl %eax
popl %eax
leave
ret

.globl _noexcept
_noexcept:
pushl %ebp
movl %esp,%ebp
pushl %eax
subl $4,%esp
fnclex
fwait
fstcw (%esp)
fwait
movl (%esp),%eax
andl $0xffc0,%eax
orl $0x3f,%eax
movl %eax,(%esp)
fldcw (%esp)
popl %eax
popl %eax
leave
ret

.globl _fpclear
_fpclear:
pushl %ebp
movl %esp,%ebp
fnclex
fwait
leave
ret

.globl _getprec
_getprec:
pushl %ebp
movl %esp,%ebp
subl $4,%esp
fstcw (%esp)
fwait
movl (%esp),%eax
leave
ret

.globl _setfpu
_setfpu:
        pushl %ebp
        movl %esp,%ebp
        movl 8(%ebp),%eax
        pushl %eax
        fldcw (%esp)
        fwait
        movl %ebp,%esp
        popl %ebp
        ret

Quelle setprec.387 Sprache: unbekannt

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