fpsetround.c revision 1.1 
11.1Seeh/*	$NetBSD: fpsetround.c,v 1.1 1998/09/11 04:56:25 eeh Exp $	*/
21.1Seeh
31.1Seeh/*
41.1Seeh * Written by J.T. Conklin, Apr 10, 1995
51.1Seeh * Public domain.
61.1Seeh */
71.1Seeh
81.1Seeh#include <ieeefp.h>
91.1Seeh
101.1Seehfp_rnd
111.1Seehfpsetround(rnd_dir)
121.1Seeh	fp_rnd rnd_dir;
131.1Seeh{
141.1Seeh	fp_rnd old;
151.1Seeh	fp_rnd new;
161.1Seeh
171.1Seeh	__asm__("st %%fsr,%0" : "=m" (*&old));
181.1Seeh
191.1Seeh	new = old;
201.1Seeh	new &= ~(0x03 << 30);
211.1Seeh	new |= ((rnd_dir & 0x03) << 30);
221.1Seeh
231.1Seeh	__asm__("ld %0,%%fsr" : : "m" (*&new));
241.1Seeh
251.1Seeh	return (old >> 30) & 0x03;
261.1Seeh}
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