newlib-cygwin/winsup/mingw/mingwex/fpclassifyf.c

11 lines
180 B
C

#include <math.h>
int __fpclassifyf (float _x){
unsigned short sw;
__asm__ (
"fxam; fstsw %%ax;"
: "=a" (sw)
: "t" (_x)
);
return sw & (FP_NAN | FP_NORMAL | FP_ZERO );
}