root/usr/src/lib/libc/i386/gen/abs.S
/*
 * CDDL HEADER START
 *
 * The contents of this file are subject to the terms of the
 * Common Development and Distribution License (the "License").
 * You may not use this file except in compliance with the License.
 *
 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
 * or http://www.opensolaris.org/os/licensing.
 * See the License for the specific language governing permissions
 * and limitations under the License.
 *
 * When distributing Covered Code, include this CDDL HEADER in each
 * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
 * If applicable, add the following below this CDDL HEADER, with the
 * fields enclosed by brackets "[]" replaced with your own identifying
 * information: Portions Copyright [yyyy] [name of copyright owner]
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 * CDDL HEADER END
 */

/*
 * Copyright 2006 Sun Microsystems, Inc.  All rights reserved.
 * Use is subject to license terms.
 */

        .file   "abs.s"

/       /* Assembler program to implement the following C program */
/       int
/       abs(arg)
/       int     arg;
/       {
/               return((arg < 0)? -arg: arg);
/       }

#include "SYS.h"

        ENTRY(abs)
        movl    4(%esp),%eax    / arg < 0?
        testl   %eax,%eax
        jns     1f
        negl    %eax            / yes, return -arg
1:
        ret
        SET_SIZE(abs)

        ENTRY(labs)
        movl    4(%esp),%eax    / arg < 0?
        testl   %eax,%eax
        jns     1f
        negl    %eax            / yes, return -arg
1:
        ret
        SET_SIZE(labs)