xref: /titanic_50/usr/src/lib/libc/i386/fp/fpcw.s (revision 9a70fc3be3b1e966bf78825cdb8d509963a6f0a1)
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*9a70fc3bSMark J. Nelson * Common Development and Distribution License (the "License").
6*9a70fc3bSMark J. Nelson * 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 */
217c478bd9Sstevel@tonic-gate/*
227c478bd9Sstevel@tonic-gate * Copyright 2004 Sun Microsystems, Inc.  All rights reserved.
237c478bd9Sstevel@tonic-gate * Use is subject to license terms.
247c478bd9Sstevel@tonic-gate */
257c478bd9Sstevel@tonic-gate
26*9a70fc3bSMark J. Nelson	.file	"fpcw.s"
277c478bd9Sstevel@tonic-gate
287c478bd9Sstevel@tonic-gate#include <SYS.h>
297c478bd9Sstevel@tonic-gate
307c478bd9Sstevel@tonic-gate	ENTRY(_getcw)
317c478bd9Sstevel@tonic-gate	movl	4(%esp),%eax
327c478bd9Sstevel@tonic-gate	fstcw	(%eax)
337c478bd9Sstevel@tonic-gate	ret
347c478bd9Sstevel@tonic-gate	SET_SIZE(_getcw)
357c478bd9Sstevel@tonic-gate
367c478bd9Sstevel@tonic-gate	ENTRY(_putcw)
377c478bd9Sstevel@tonic-gate	fldcw	4(%esp)
387c478bd9Sstevel@tonic-gate	ret
397c478bd9Sstevel@tonic-gate	SET_SIZE(_putcw)
407c478bd9Sstevel@tonic-gate
417c478bd9Sstevel@tonic-gate	ENTRY(_getsw)
427c478bd9Sstevel@tonic-gate	movl	4(%esp),%eax
437c478bd9Sstevel@tonic-gate	fstsw	(%eax)
447c478bd9Sstevel@tonic-gate	ret
457c478bd9Sstevel@tonic-gate	SET_SIZE(_getsw)
467c478bd9Sstevel@tonic-gate
477c478bd9Sstevel@tonic-gate	ENTRY(_putsw)
487c478bd9Sstevel@tonic-gate	movl	4(%esp),%ecx
497c478bd9Sstevel@tonic-gate	andl	$0x3f,%ecx
507c478bd9Sstevel@tonic-gate	jnz	1f
517c478bd9Sstevel@tonic-gate	fnclex
527c478bd9Sstevel@tonic-gate	ret
537c478bd9Sstevel@tonic-gate1:
547c478bd9Sstevel@tonic-gate	fnstsw	%ax
557c478bd9Sstevel@tonic-gate	subl	$28,%esp
567c478bd9Sstevel@tonic-gate	fnstenv	(%esp)
577c478bd9Sstevel@tonic-gate	andw	$0xffc0,%ax
587c478bd9Sstevel@tonic-gate	orw	%ax,%cx
597c478bd9Sstevel@tonic-gate	movw	%cx,4(%esp)
607c478bd9Sstevel@tonic-gate	fldenv	(%esp)
617c478bd9Sstevel@tonic-gate	addl	$28,%esp
627c478bd9Sstevel@tonic-gate	ret
637c478bd9Sstevel@tonic-gate	SET_SIZE(_putsw)
647c478bd9Sstevel@tonic-gate
657c478bd9Sstevel@tonic-gate	ENTRY(_getmxcsr)
667c478bd9Sstevel@tonic-gate	movl	4(%esp),%eax
677c478bd9Sstevel@tonic-gate	stmxcsr	(%eax)
687c478bd9Sstevel@tonic-gate	ret
697c478bd9Sstevel@tonic-gate	SET_SIZE(_getmxcsr)
707c478bd9Sstevel@tonic-gate
717c478bd9Sstevel@tonic-gate	ENTRY(_putmxcsr)
727c478bd9Sstevel@tonic-gate	ldmxcsr	4(%esp)
737c478bd9Sstevel@tonic-gate	ret
747c478bd9Sstevel@tonic-gate	SET_SIZE(_putmxcsr)
75