/*	$OpenBSD: fpsetround.c,v 1.4 2013/01/05 11:20:55 miod Exp $	*/

/*
 * Written by J.T. Conklin, Apr 10, 1995
 * Public domain.
 * Ported to 88k by Nivas Madhur
 */

#include <ieeefp.h>

fp_rnd
fpsetround(rnd_dir)
	fp_rnd rnd_dir;
{
	fp_rnd old;
	fp_rnd new;

	__asm__ volatile("fldcr %0, %%fcr63" : "=r" (old));

	new = old;
	new &= ~(0x03 << 14); 		/* clear old value */
	new |= ((rnd_dir & 0x03) << 14);/* and set new one */

	__asm__ volatile("fstcr %0, %%fcr63" : : "r" (new));

	return (old >> 14) & 0x03;
}