75 lines
1.9 KiB
C
75 lines
1.9 KiB
C
/**
|
|
* This file has no copyright assigned and is placed in the Public Domain.
|
|
* This file is part of the mingw-w64 runtime package.
|
|
* No warranty is given; refer to the file DISCLAIMER.PD within this package.
|
|
*/
|
|
|
|
void sincos (double __x, double *p_sin, double *p_cos);
|
|
void sincosl (long double __x, long double *p_sin, long double *p_cos);
|
|
void sincosf (float __x, float *p_sin, float *p_cos);
|
|
|
|
void sincos (double __x, double *p_sin, double *p_cos)
|
|
{
|
|
long double c, s;
|
|
|
|
__asm__ __volatile__ ("fsincos\n\t"
|
|
"fnstsw %%ax\n\t"
|
|
"testl $0x400, %%eax\n\t"
|
|
"jz 1f\n\t"
|
|
"fldpi\n\t"
|
|
"fadd %%st(0)\n\t"
|
|
"fxch %%st(1)\n\t"
|
|
"2: fprem1\n\t"
|
|
"fnstsw %%ax\n\t"
|
|
"testl $0x400, %%eax\n\t"
|
|
"jnz 2b\n\t"
|
|
"fstp %%st(1)\n\t"
|
|
"fsincos\n\t"
|
|
"1:" : "=t" (c), "=u" (s) : "0" (__x));
|
|
*p_sin = (double) s;
|
|
*p_cos = (double) c;
|
|
}
|
|
|
|
void sincosf (float __x, float *p_sin, float *p_cos)
|
|
{
|
|
long double c, s;
|
|
|
|
__asm__ __volatile__ ("fsincos\n\t"
|
|
"fnstsw %%ax\n\t"
|
|
"testl $0x400, %%eax\n\t"
|
|
"jz 1f\n\t"
|
|
"fldpi\n\t"
|
|
"fadd %%st(0)\n\t"
|
|
"fxch %%st(1)\n\t"
|
|
"2: fprem1\n\t"
|
|
"fnstsw %%ax\n\t"
|
|
"testl $0x400, %%eax\n\t"
|
|
"jnz 2b\n\t"
|
|
"fstp %%st(1)\n\t"
|
|
"fsincos\n\t"
|
|
"1:" : "=t" (c), "=u" (s) : "0" (__x));
|
|
*p_sin = (float) s;
|
|
*p_cos = (float) c;
|
|
}
|
|
|
|
void sincosl (long double __x, long double *p_sin, long double *p_cos)
|
|
{
|
|
long double c, s;
|
|
|
|
__asm__ __volatile__ ("fsincos\n\t"
|
|
"fnstsw %%ax\n\t"
|
|
"testl $0x400, %%eax\n\t"
|
|
"jz 1f\n\t"
|
|
"fldpi\n\t"
|
|
"fadd %%st(0)\n\t"
|
|
"fxch %%st(1)\n\t"
|
|
"2: fprem1\n\t"
|
|
"fnstsw %%ax\n\t"
|
|
"testl $0x400, %%eax\n\t"
|
|
"jnz 2b\n\t"
|
|
"fstp %%st(1)\n\t"
|
|
"fsincos\n\t"
|
|
"1:" : "=t" (c), "=u" (s) : "0" (__x));
|
|
*p_sin = s;
|
|
*p_cos = c;
|
|
}
|