1 #include <math.h>
2
fmod(double x,double y)3 double fmod(double x, double y)
4 {
5 unsigned short fpsr;
6 // fprem does not introduce excess precision into x
7 do __asm__ ("fprem; fnstsw %%ax" : "+t"(x), "=a"(fpsr) : "u"(y));
8 while (fpsr & 0x400);
9 return x;
10 }
11