glibc/sysdeps/i386/fpu/e_fmodl.c

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/*
* Written by J.T. Conklin <jtc@netbsd.org>.
* Public domain.
*
* Adapted for `long double' by Ulrich Drepper <drepper@cygnus.com>.
*/
#include <math_private.h>
#include <libm-alias-finite.h>
long double
__ieee754_fmodl (long double x, long double y)
{
long double res;
asm ("1:\tfprem\n"
"fstsw %%ax\n"
"sahf\n"
"jp 1b\n"
"fstp %%st(1)"
: "=t" (res) : "0" (x), "u" (y) : "ax", "st(1)");
return res;
}
libm_alias_finite (__ieee754_fmodl, __fmodl)