#include <stdio.h>
#include <math.h>
double d;
int i;
extern void do_tst ( void );
asm(
"\n"
"do_tst:\n"
"\txorl %eax,%eax\n"
"\tfld d\n"
"\tftst\n"
"\tfnstsw %ax\n"
"\tmovl %eax, i\n"
"\tret\n"
);
int main ( void )
{
d = -1.23; do_tst(); printf("%f -> 0x%x\n", d, i );
d = 0.0; do_tst(); printf("%f -> 0x%x\n", d, i );
d = 9.87; do_tst(); printf("%f -> 0x%x\n", d, i );
return 0;
}