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
35#include "lint.h"
36#include <ieeefp.h>
37#include "fp.h"
38
39extern int	_sse_hw;
40extern void	_getmxcsr(int *), _putmxcsr(int);
41
42fp_except
43fpsetmask(fp_except newmask)
44{
45	struct _cw87 cw;
46	fp_except oldmask;
47	int	mxcsr;
48
49	_getcw(&cw);
50	oldmask = (fp_except)(~cw.mask & EXCPMASK);
51	cw.mask = ~((unsigned)newmask) & EXCPMASK;
52	_putcw(cw);
53	if (_sse_hw) {
54		_getmxcsr(&mxcsr);
55		mxcsr = (mxcsr & ~0x1f80) | (~((int)newmask << 7) & 0x1f80);
56		_putmxcsr(mxcsr);
57	}
58	return (oldmask);
59}
60