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/*
* Written by J.T. Conklin, Apr 10, 1995
* Public domain.
*/
#include <sys/cdefs.h>
__FBSDID("$FreeBSD: src/lib/libc/i386/gen/flt_rounds.c,v 1.1.30.1.2.1 2009/10/25 01:10:29 kensmith Exp $");
#include <float.h>
static const int map[] = {
1, /* round to nearest */
3, /* round to zero */
2, /* round to negative infinity */
0 /* round to positive infinity */
};
int
__flt_rounds(void)
{
int x;
__asm("fnstcw %0" : "=m" (x));
return (map[(x >> 10) & 0x03]);
}
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