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 (the "License"). 6 * You may not use this file except in compliance with the License. 7 * 8 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 9 * or http://www.opensolaris.org/os/licensing. 10 * See the License for the specific language governing permissions 11 * and limitations under the License. 12 * 13 * When distributing Covered Code, include this CDDL HEADER in each 14 * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 15 * If applicable, add the following below this CDDL HEADER, with the 16 * fields enclosed by brackets "[]" replaced with your own identifying 17 * information: Portions Copyright [yyyy] [name of copyright owner] 18 * 19 * CDDL HEADER END 20 */ 21 22/* 23 * Copyright 2008 Sun Microsystems, Inc. All rights reserved. 24 * Use is subject to license terms. 25 */ 26 27#pragma 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 ENTRY(labs) 53 movq %rdi, %rax 54 testq %rax, %rax /* arg < 0? */ 55 jns 1f 56 negq %rax /* yes, return -arg */ 571: 58 ret 59 SET_SIZE(labs) 60 61 ENTRY(llabs) 62 movq %rdi, %rax 63 testq %rax, %rax /* arg < 0? */ 64 jns 1f 65 negq %rax /* yes, return -arg */ 661: 67 ret 68 SET_SIZE(llabs) 69