xref: /titanic_50/usr/src/lib/libc/i386/gen/abs.s (revision 8b464eb836173b92f2b7a65623cd06c8c3c59289)
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
23/*
24 * Copyright 2006 Sun Microsystems, Inc.  All rights reserved.
25 * Use is subject to license terms.
26 */
27
28	.ident	"%Z%%M%	%I%	%E% SMI"
29
30	.file	"%M%"
31
32/	/* Assembler program to implement the following C program */
33/	int
34/	abs(arg)
35/	int	arg;
36/	{
37/		return((arg < 0)? -arg: arg);
38/	}
39
40#include "SYS.h"
41
42	ENTRY(abs)
43	movl	4(%esp),%eax	/ arg < 0?
44	testl	%eax,%eax
45	jns	1f
46	negl	%eax		/ yes, return -arg
471:
48	ret
49	SET_SIZE(abs)
50
51	ENTRY(labs)
52	movl	4(%esp),%eax	/ arg < 0?
53	testl	%eax,%eax
54	jns	1f
55	negl	%eax		/ yes, return -arg
561:
57	ret
58	SET_SIZE(labs)
59