xref: /onnv-gate/usr/src/lib/libc/i386/gen/abs.s (revision 7298:b69e27387f74)
10Sstevel@tonic-gate/*
20Sstevel@tonic-gate * CDDL HEADER START
30Sstevel@tonic-gate *
40Sstevel@tonic-gate * The contents of this file are subject to the terms of the
5*7298SMark.J.Nelson@Sun.COM * Common Development and Distribution License (the "License").
6*7298SMark.J.Nelson@Sun.COM * You may not use this file except in compliance with the License.
70Sstevel@tonic-gate *
80Sstevel@tonic-gate * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
90Sstevel@tonic-gate * or http://www.opensolaris.org/os/licensing.
100Sstevel@tonic-gate * See the License for the specific language governing permissions
110Sstevel@tonic-gate * and limitations under the License.
120Sstevel@tonic-gate *
130Sstevel@tonic-gate * When distributing Covered Code, include this CDDL HEADER in each
140Sstevel@tonic-gate * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
150Sstevel@tonic-gate * If applicable, add the following below this CDDL HEADER, with the
160Sstevel@tonic-gate * fields enclosed by brackets "[]" replaced with your own identifying
170Sstevel@tonic-gate * information: Portions Copyright [yyyy] [name of copyright owner]
180Sstevel@tonic-gate *
190Sstevel@tonic-gate * CDDL HEADER END
200Sstevel@tonic-gate */
211219Sraf
220Sstevel@tonic-gate/*
231219Sraf * Copyright 2006 Sun Microsystems, Inc.  All rights reserved.
240Sstevel@tonic-gate * Use is subject to license terms.
250Sstevel@tonic-gate */
260Sstevel@tonic-gate
27*7298SMark.J.Nelson@Sun.COM	.file	"abs.s"
280Sstevel@tonic-gate
290Sstevel@tonic-gate/	/* Assembler program to implement the following C program */
300Sstevel@tonic-gate/	int
310Sstevel@tonic-gate/	abs(arg)
320Sstevel@tonic-gate/	int	arg;
330Sstevel@tonic-gate/	{
340Sstevel@tonic-gate/		return((arg < 0)? -arg: arg);
350Sstevel@tonic-gate/	}
360Sstevel@tonic-gate
370Sstevel@tonic-gate#include "SYS.h"
380Sstevel@tonic-gate
390Sstevel@tonic-gate	ENTRY(abs)
401219Sraf	movl	4(%esp),%eax	/ arg < 0?
411219Sraf	testl	%eax,%eax
421219Sraf	jns	1f
431219Sraf	negl	%eax		/ yes, return -arg
441219Sraf1:
451219Sraf	ret
461219Sraf	SET_SIZE(abs)
471219Sraf
480Sstevel@tonic-gate	ENTRY(labs)
490Sstevel@tonic-gate	movl	4(%esp),%eax	/ arg < 0?
500Sstevel@tonic-gate	testl	%eax,%eax
511219Sraf	jns	1f
520Sstevel@tonic-gate	negl	%eax		/ yes, return -arg
531219Sraf1:
540Sstevel@tonic-gate	ret
550Sstevel@tonic-gate	SET_SIZE(labs)
56