github.com/afumu/libc@v0.0.6/musl/src/math/i386/remainderf.c (about)

     1  #include <math.h>
     2  
     3  float remainderf(float x, float y)
     4  {
     5  	unsigned short fpsr;
     6  	// fprem1 does not introduce excess precision into x
     7  	do __asm__ ("fprem1; fnstsw %%ax" : "+t"(x), "=a"(fpsr) : "u"(y));
     8  	while (fpsr & 0x400);
     9  	return x;
    10  }
    11  
    12  weak_alias(remainderf, dremf);