StdLib/LibC/Main/Ipf/flt_rounds.c

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

#include <sys/EfiCdefs.h>
/* __FBSDID("$FreeBSD: src/lib/libc/ia64/gen/flt_rounds.c,v 1.1 2004/07/19 08:17:24 das 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("mov %0=ar.fpsr" : "=r" (x));
        return (map[(x >> 10) & 0x03]);
}