1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75
|
/**
* 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;
}
|