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, Version 1.0 only 6 * (the "License"). You may not use this file except in compliance 7 * with the License. 8 * 9 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 10 * or http://www.opensolaris.org/os/licensing. 11 * See the License for the specific language governing permissions 12 * and limitations under the License. 13 * 14 * When distributing Covered Code, include this CDDL HEADER in each 15 * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 16 * If applicable, add the following below this CDDL HEADER, with the 17 * fields enclosed by brackets "[]" replaced with your own identifying 18 * information: Portions Copyright [yyyy] [name of copyright owner] 19 * 20 * CDDL HEADER END 21 */ 22 /* Copyright (c) 1990, 1991 UNIX System Laboratories, Inc. */ 23 /* Copyright (c) 1988 AT&T */ 24 /* All Rights Reserved */ 25 26 /* 27 * Copyright 2004 Sun Microsystems, Inc. All rights reserved. 28 * Use is subject to license terms. 29 */ 30 31 #pragma ident "%Z%%M% %I% %E% SMI" 32 33 #pragma weak fpsetmask = _fpsetmask 34 35 #include "synonyms.h" 36 #include <ieeefp.h> 37 #include "fp.h" 38 39 extern int _sse_hw; 40 extern void _getmxcsr(int *), _putmxcsr(int); 41 42 fp_except 43 fpsetmask(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