1 *5d9d9091SRichard Lowe/* 2 *5d9d9091SRichard Lowe * CDDL HEADER START 3 *5d9d9091SRichard Lowe * 4 *5d9d9091SRichard Lowe * The contents of this file are subject to the terms of the 5 *5d9d9091SRichard Lowe * Common Development and Distribution License (the "License"). 6 *5d9d9091SRichard Lowe * You may not use this file except in compliance with the License. 7 *5d9d9091SRichard Lowe * 8 *5d9d9091SRichard Lowe * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 9 *5d9d9091SRichard Lowe * or http://www.opensolaris.org/os/licensing. 10 *5d9d9091SRichard Lowe * See the License for the specific language governing permissions 11 *5d9d9091SRichard Lowe * and limitations under the License. 12 *5d9d9091SRichard Lowe * 13 *5d9d9091SRichard Lowe * When distributing Covered Code, include this CDDL HEADER in each 14 *5d9d9091SRichard Lowe * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 15 *5d9d9091SRichard Lowe * If applicable, add the following below this CDDL HEADER, with the 16 *5d9d9091SRichard Lowe * fields enclosed by brackets "[]" replaced with your own identifying 17 *5d9d9091SRichard Lowe * information: Portions Copyright [yyyy] [name of copyright owner] 18 *5d9d9091SRichard Lowe * 19 *5d9d9091SRichard Lowe * CDDL HEADER END 20 *5d9d9091SRichard Lowe */ 21 *5d9d9091SRichard Lowe 22 *5d9d9091SRichard Lowe/* 23 *5d9d9091SRichard Lowe * Copyright 2006 Sun Microsystems, Inc. All rights reserved. 24 *5d9d9091SRichard Lowe * Use is subject to license terms. 25 *5d9d9091SRichard Lowe */ 26 *5d9d9091SRichard Lowe 27 *5d9d9091SRichard Lowe .file "abs.s" 28 *5d9d9091SRichard Lowe 29 *5d9d9091SRichard Lowe/ /* Assembler program to implement the following C program */ 30 *5d9d9091SRichard Lowe/ int 31 *5d9d9091SRichard Lowe/ abs(arg) 32 *5d9d9091SRichard Lowe/ int arg; 33 *5d9d9091SRichard Lowe/ { 34 *5d9d9091SRichard Lowe/ return((arg < 0)? -arg: arg); 35 *5d9d9091SRichard Lowe/ } 36 *5d9d9091SRichard Lowe 37 *5d9d9091SRichard Lowe#include "SYS.h" 38 *5d9d9091SRichard Lowe 39 *5d9d9091SRichard Lowe ENTRY(abs) 40 *5d9d9091SRichard Lowe movl 4(%esp),%eax / arg < 0? 41 *5d9d9091SRichard Lowe testl %eax,%eax 42 *5d9d9091SRichard Lowe jns 1f 43 *5d9d9091SRichard Lowe negl %eax / yes, return -arg 44 *5d9d9091SRichard Lowe1: 45 *5d9d9091SRichard Lowe ret 46 *5d9d9091SRichard Lowe SET_SIZE(abs) 47 *5d9d9091SRichard Lowe 48 *5d9d9091SRichard Lowe ENTRY(labs) 49 *5d9d9091SRichard Lowe movl 4(%esp),%eax / arg < 0? 50 *5d9d9091SRichard Lowe testl %eax,%eax 51 *5d9d9091SRichard Lowe jns 1f 52 *5d9d9091SRichard Lowe negl %eax / yes, return -arg 53 *5d9d9091SRichard Lowe1: 54 *5d9d9091SRichard Lowe ret 55 *5d9d9091SRichard Lowe SET_SIZE(labs) 56