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win32/include/math.h: remoing a "t" modifier usage

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replaced by loading a float argument from memory and
    using the "m" modifier
This commit is contained in:
seyko 2015-11-05 14:27:41 +03:00
parent f7dd3d49cc
commit 45bc505968
1 changed files with 31 additions and 10 deletions
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41
win32/include/math.h
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@ -316,7 +316,10 @@ extern "C" {
__CRT_INLINE int __cdecl __fpclassifyl (long double x){
unsigned short sw;
__asm__ ("fxam; fstsw %%ax;" : "=a" (sw): "t" (x));
__asm__ (
"fldt %1 \n"
"fxam \n"
"fstsw %0 \n" : "=a" (sw): "m" (x));
return sw & (FP_NAN | FP_NORMAL | FP_ZERO );
}
@ -337,8 +340,11 @@ extern "C" {
__CRT_INLINE int __cdecl __isnan (double _x)
{
unsigned short sw;
__asm__ ("fxam;"
"fstsw %%ax": "=a" (sw) : "t" (_x));
__asm__ (
"fldl %1 \n"
"fxam \n"
"fstsw %0 \n" : "=a" (sw) : "m" (_x));
return (sw & (FP_NAN | FP_NORMAL | FP_INFINITE | FP_ZERO | FP_SUBNORMAL))
== FP_NAN;
}
@ -346,8 +352,11 @@ extern "C" {
__CRT_INLINE int __cdecl __isnanf (float _x)
{
unsigned short sw;
__asm__ ("fxam;"
"fstsw %%ax": "=a" (sw) : "t" (_x));
__asm__ (
"flds %1 \n"
"fxam \n"
"fstsw %0 \n" : "=a" (sw) : "m" (_x));
return (sw & (FP_NAN | FP_NORMAL | FP_INFINITE | FP_ZERO | FP_SUBNORMAL))
== FP_NAN;
}
@ -355,8 +364,11 @@ extern "C" {
__CRT_INLINE int __cdecl __isnanl (long double _x)
{
unsigned short sw;
__asm__ ("fxam;"
"fstsw %%ax": "=a" (sw) : "t" (_x));
__asm__ (
"fldt %1 \n"
"fxam \n"
"fstsw %0 \n" : "=a" (sw) : "m" (_x));
return (sw & (FP_NAN | FP_NORMAL | FP_INFINITE | FP_ZERO | FP_SUBNORMAL))
== FP_NAN;
}
@ -372,19 +384,28 @@ extern "C" {
/* 7.12.3.6 The signbit macro */
__CRT_INLINE int __cdecl __signbit (double x) {
unsigned short stw;
__asm__ ( "fxam; fstsw %%ax;": "=a" (stw) : "t" (x));
__asm__ (
"fldl %1 \n"
"fxam \n"
"fstsw %0 \n" : "=a" (stw) : "m" (x));
return stw & 0x0200;
}
__CRT_INLINE int __cdecl __signbitf (float x) {
unsigned short stw;
__asm__ ("fxam; fstsw %%ax;": "=a" (stw) : "t" (x));
__asm__ (
"flds %1 \n"
"fxam \n"
"fstsw %0 \n" : "=a" (stw) : "m" (x));
return stw & 0x0200;
}
__CRT_INLINE int __cdecl __signbitl (long double x) {
unsigned short stw;
__asm__ ("fxam; fstsw %%ax;": "=a" (stw) : "t" (x));
__asm__ (
"fldt %1 \n"
"fxam \n"
"fstsw %0 \n" : "=a" (stw) : "m" (x));
return stw & 0x0200;
}