abs.s revision 2
2N/A/*
2N/A * CDDL HEADER START
2N/A *
2N/A * The contents of this file are subject to the terms of the
2N/A * Common Development and Distribution License (the "License").
2N/A * You may not use this file except in compliance with the License.
2N/A *
2N/A * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
2N/A * or http://www.opensolaris.org/os/licensing.
2N/A * See the License for the specific language governing permissions
2N/A * and limitations under the License.
2N/A *
2N/A * When distributing Covered Code, include this CDDL HEADER in each
2N/A * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
2N/A * If applicable, add the following below this CDDL HEADER, with the
2N/A * fields enclosed by brackets "[]" replaced with your own identifying
2N/A * information: Portions Copyright [yyyy] [name of copyright owner]
2N/A *
2N/A * CDDL HEADER END
2N/A */
2N/A
2N/A/*
2N/A * Copyright 2006 Sun Microsystems, Inc. All rights reserved.
2N/A * Use is subject to license terms.
2N/A */
2N/A
2N/A .file "abs.s"
2N/A
2N/A/ /* Assembler program to implement the following C program */
2N/A/ int
2N/A/ abs(arg)
2N/A/ int arg;
2N/A/ {
2N/A/ return((arg < 0)? -arg: arg);
2N/A/ }
2N/A
2N/A#include "SYS.h"
2N/A
2N/A ENTRY(abs)
2N/A movl 4(%esp),%eax / arg < 0?
2N/A testl %eax,%eax
2N/A jns 1f
2N/A negl %eax / yes, return -arg
2N/A1:
2N/A ret
2N/A SET_SIZE(abs)
2N/A
2N/A ENTRY(labs)
2N/A movl 4(%esp),%eax / arg < 0?
2N/A testl %eax,%eax
2N/A jns 1f
2N/A negl %eax / yes, return -arg
2N/A1:
2N/A ret
2N/A SET_SIZE(labs)