xref: /titanic_44/usr/src/lib/libc/i386/gen/ladd.s (revision 2b4a78020b9c38d1b95e2f3fefa6d6e4be382d1f)
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	.file	"ladd.s"
28
29/ Double long add routine.
30
31#include "SYS.h"
32
33	.set	lop,4
34	.set	rop,12
35	.set	ans,0
36
37	ENTRY(ladd)
38	popl	%eax
39	xchgl	%eax,0(%esp)
40
41	movl	lop(%esp),%ecx
42	addl	rop(%esp),%ecx
43	movl	lop+4(%esp),%edx
44	adcl	rop+4(%esp),%edx
45	movl	%ecx,ans(%eax)
46	movl	%edx,ans+4(%eax)
47
48	ret
49	SET_SIZE(ladd)
50