kolibrios/programs/develop/libraries/newlib/math/fmodf.c
Sergey Semyonov (Serge) 2336060a0c newlib: update
git-svn-id: svn://kolibrios.org@1906 a494cfbc-eb01-0410-851d-a64ba20cac60
2011-03-11 18:52:24 +00:00

38 lines
686 B
C

/*
* Written by J.T. Conklin <jtc@netbsd.org>.
* Public domain.
*
* Adapted for float type by Danny Smith
* <dannysmith@users.sourceforge.net>.
*/
#include <math.h>
float
fmodf (float x, float y)
{
float res;
asm ("1:\tfprem\n\t"
"fstsw %%ax\n\t"
"sahf\n\t"
"jp 1b\n\t"
"fstp %%st(1)"
: "=t" (res) : "0" (x), "u" (y) : "ax", "st(1)");
return res;
}
double
fmod (double x, double y)
{
float res;
asm ("1:\tfprem\n\t"
"fstsw %%ax\n\t"
"sahf\n\t"
"jp 1b\n\t"
"fstp %%st(1)"
: "=t" (res) : "0" (x), "u" (y) : "ax", "st(1)");
return res;
}