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 57257d1b4Sraf * Common Development and Distribution License (the "License"). 67257d1b4Sraf * 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 */ 217257d1b4Sraf 227c478bd9Sstevel@tonic-gate /* 237257d1b4Sraf * Copyright 2008 Sun Microsystems, Inc. All rights reserved. 247c478bd9Sstevel@tonic-gate * Use is subject to license terms. 257c478bd9Sstevel@tonic-gate */ 267c478bd9Sstevel@tonic-gate 277257d1b4Sraf #include "lint.h" 287c478bd9Sstevel@tonic-gate #include "base_conversion.h" 297c478bd9Sstevel@tonic-gate #include <sys/isa_defs.h> 307c478bd9Sstevel@tonic-gate 317c478bd9Sstevel@tonic-gate #define CSR_DEFAULT 0x1f80 327c478bd9Sstevel@tonic-gate 337c478bd9Sstevel@tonic-gate /* 347c478bd9Sstevel@tonic-gate * Returns IEEE mode/status and 357c478bd9Sstevel@tonic-gate * sets up standard environment for base conversion. 367c478bd9Sstevel@tonic-gate */ 377c478bd9Sstevel@tonic-gate void __get_ieee_flags(__ieee_flags_type * b)387c478bd9Sstevel@tonic-gate__get_ieee_flags(__ieee_flags_type *b) { 397c478bd9Sstevel@tonic-gate extern void _getmxcsr(), _putmxcsr(); 407c478bd9Sstevel@tonic-gate 417c478bd9Sstevel@tonic-gate _getmxcsr(&b->status); 427c478bd9Sstevel@tonic-gate 437c478bd9Sstevel@tonic-gate /* round-to-nearest, all exceptions masked, gradual underflow */ 447c478bd9Sstevel@tonic-gate _putmxcsr(CSR_DEFAULT); 457c478bd9Sstevel@tonic-gate } 467c478bd9Sstevel@tonic-gate 477c478bd9Sstevel@tonic-gate /* 487c478bd9Sstevel@tonic-gate * Restores previous IEEE mode/status 497c478bd9Sstevel@tonic-gate */ 507c478bd9Sstevel@tonic-gate void __set_ieee_flags(__ieee_flags_type * b)517c478bd9Sstevel@tonic-gate__set_ieee_flags(__ieee_flags_type *b) { 527c478bd9Sstevel@tonic-gate extern void _putmxcsr(); 537c478bd9Sstevel@tonic-gate 547c478bd9Sstevel@tonic-gate _putmxcsr(b->status); 557c478bd9Sstevel@tonic-gate } 56