NetBSD/lib/libc/arch/powerpc/gen/flt_rounds.c

19 lines
346 B
C

/* $NetBSD: flt_rounds.c,v 1.1 1997/03/29 20:55:55 thorpej Exp $ */
static const int map[] = {
1, /* round to nearest */
0, /* round to zero */
2, /* round to positive infinity */
3 /* round to negative infinity */
};
int
__flt_rounds()
{
double tmp;
int x;
asm("mffs %0; stfiwx %0,0,%1" : "=f"(tmp): "b"(&x));
return map[x & 0x03];
}