17c478bd9Sstevel@tonic-gate /* 27c478bd9Sstevel@tonic-gate * CDDL HEADER START 37c478bd9Sstevel@tonic-gate * 47c478bd9Sstevel@tonic-gate * The contents of this file are subject to the terms of the 5*7257d1b4Sraf * Common Development and Distribution License (the "License"). 6*7257d1b4Sraf * You may not use this file except in compliance with the License. 77c478bd9Sstevel@tonic-gate * 87c478bd9Sstevel@tonic-gate * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 97c478bd9Sstevel@tonic-gate * or http://www.opensolaris.org/os/licensing. 107c478bd9Sstevel@tonic-gate * See the License for the specific language governing permissions 117c478bd9Sstevel@tonic-gate * and limitations under the License. 127c478bd9Sstevel@tonic-gate * 137c478bd9Sstevel@tonic-gate * When distributing Covered Code, include this CDDL HEADER in each 147c478bd9Sstevel@tonic-gate * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 157c478bd9Sstevel@tonic-gate * If applicable, add the following below this CDDL HEADER, with the 167c478bd9Sstevel@tonic-gate * fields enclosed by brackets "[]" replaced with your own identifying 177c478bd9Sstevel@tonic-gate * information: Portions Copyright [yyyy] [name of copyright owner] 187c478bd9Sstevel@tonic-gate * 197c478bd9Sstevel@tonic-gate * CDDL HEADER END 207c478bd9Sstevel@tonic-gate */ 21*7257d1b4Sraf 22*7257d1b4Sraf /* 23*7257d1b4Sraf * Copyright 2008 Sun Microsystems, Inc. All rights reserved. 24*7257d1b4Sraf * Use is subject to license terms. 25*7257d1b4Sraf */ 26*7257d1b4Sraf 277c478bd9Sstevel@tonic-gate /* Copyright (c) 1990, 1991 UNIX System Laboratories, Inc. */ 287c478bd9Sstevel@tonic-gate /* Copyright (c) 1988 AT&T */ 297c478bd9Sstevel@tonic-gate /* All Rights Reserved */ 307c478bd9Sstevel@tonic-gate 317c478bd9Sstevel@tonic-gate #pragma ident "%Z%%M% %I% %E% SMI" 327c478bd9Sstevel@tonic-gate 33*7257d1b4Sraf #pragma weak _fpsetmask = fpsetmask 347c478bd9Sstevel@tonic-gate 35*7257d1b4Sraf #include "lint.h" 367c478bd9Sstevel@tonic-gate #include <ieeefp.h> 377c478bd9Sstevel@tonic-gate #include "fp.h" 387c478bd9Sstevel@tonic-gate 397c478bd9Sstevel@tonic-gate extern int _sse_hw; 407c478bd9Sstevel@tonic-gate extern void _getmxcsr(int *), _putmxcsr(int); 417c478bd9Sstevel@tonic-gate 427c478bd9Sstevel@tonic-gate fp_except fpsetmask(fp_except newmask)437c478bd9Sstevel@tonic-gatefpsetmask(fp_except newmask) 447c478bd9Sstevel@tonic-gate { 457c478bd9Sstevel@tonic-gate struct _cw87 cw; 467c478bd9Sstevel@tonic-gate fp_except oldmask; 477c478bd9Sstevel@tonic-gate int mxcsr; 487c478bd9Sstevel@tonic-gate 497c478bd9Sstevel@tonic-gate _getcw(&cw); 507c478bd9Sstevel@tonic-gate oldmask = (fp_except)(~cw.mask & EXCPMASK); 517c478bd9Sstevel@tonic-gate cw.mask = ~((unsigned)newmask) & EXCPMASK; 527c478bd9Sstevel@tonic-gate _putcw(cw); 537c478bd9Sstevel@tonic-gate if (_sse_hw) { 547c478bd9Sstevel@tonic-gate _getmxcsr(&mxcsr); 557c478bd9Sstevel@tonic-gate mxcsr = (mxcsr & ~0x1f80) | (~((int)newmask << 7) & 0x1f80); 567c478bd9Sstevel@tonic-gate _putmxcsr(mxcsr); 577c478bd9Sstevel@tonic-gate } 587c478bd9Sstevel@tonic-gate return (oldmask); 597c478bd9Sstevel@tonic-gate } 60