/*      $OpenBSD: flt_rounds.c,v 1.4 2015/10/27 05:54:49 guenther Exp $ */
/*      $NetBSD: flt_rounds.c,v 1.1 1998/09/11 04:56:23 eeh Exp $       */

/*
 * Written by J.T. Conklin, Apr 10, 1995
 * Public domain.
 */

#include <sys/types.h>
#include <float.h>

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()
{
        int x;

        __asm__("st %%fsr,%0" : "=m" (*&x));
        return map[(x >> 30) & 0x03];
}
DEF_STRONG(__flt_rounds);