kolibrios-fun/programs/develop/libraries/newlib/math/fpclassifyf.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

11 lines
190 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 );
}