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 * Copyright 2004 Sun Microsystems, Inc. All rights reserved. 24 * Use is subject to license terms. 25 */ 26 27 .ident "%Z%%M% %I% %E% SMI" 28 29 .file "%M%" 30 31/* 32 * Assembler program to implement the following C program 33 * 34 * int 35 * abs(int arg) 36 * { 37 * return((arg < 0)? -arg: arg); 38 * } 39 */ 40 41#include "SYS.h" 42 43 ENTRY(abs) 44 movl %edi, %eax 45 testl %eax, %eax /* arg < 0? */ 46 jns 1f 47 negl %eax /* yes, return -arg */ 481: 49 ret 50 SET_SIZE(abs) 51 52 53 ENTRY(labs) 54 movq %rdi, %rax 55 testq %rax, %rax /* arg < 0? */ 56 jns 1f 57 negq %rax /* yes, return -arg */ 581: 59 ret 60 SET_SIZE(labs) 61