1/*
2 * CDDL HEADER START
3 *
4 * The contents of this file are subject to the terms of the
5 * Common Development and Distribution License (the "License").
6 * You may not use this file except in compliance with the License.
7 *
8 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
9 * or http://www.opensolaris.org/os/licensing.
10 * See the License for the specific language governing permissions
11 * and limitations under the License.
12 *
13 * When distributing Covered Code, include this CDDL HEADER in each
14 * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
15 * If applicable, add the following below this CDDL HEADER, with the
16 * fields enclosed by brackets "[]" replaced with your own identifying
17 * information: Portions Copyright [yyyy] [name of copyright owner]
18 *
19 * CDDL HEADER END
20 */
21
22/*
23 * Copyright 2008 Sun Microsystems, Inc.  All rights reserved.
24 * Use is subject to license terms.
25 */
26
27/*	Copyright (c) 1990, 1991 UNIX System Laboratories, Inc.	*/
28/*	Copyright (c) 1988 AT&T	*/
29/*	  All Rights Reserved	*/
30
31#pragma ident	"%Z%%M%	%I%	%E% SMI"
32
33#pragma weak _fpsetmask = fpsetmask
34
35extern void	_getmxcsr(int *), _putmxcsr(int);
36
37#include "lint.h"
38#include <ieeefp.h>
39#include "fp.h"
40
41fp_except
42fpsetmask(fp_except newmask)
43{
44	struct _cw87 cw;
45	fp_except oldmask;
46	int	mxcsr;
47
48	_getcw(&cw);
49	oldmask = (fp_except)(~cw.mask & EXCPMASK);
50	cw.mask = ~((unsigned)newmask) & EXCPMASK;
51	_putcw(cw);
52	_getmxcsr(&mxcsr);
53	mxcsr = (mxcsr & ~0x1f80) | (~((int)newmask << 7) & 0x1f80);
54	_putmxcsr(mxcsr);
55	return (oldmask);
56}
57