17c478bd9Sstevel@tonic-gate/* 27c478bd9Sstevel@tonic-gate * CDDL HEADER START 37c478bd9Sstevel@tonic-gate * 47c478bd9Sstevel@tonic-gate * The contents of this file are subject to the terms of the 57257d1b4Sraf * Common Development and Distribution License (the "License"). 67257d1b4Sraf * You may not use this file except in compliance with the License. 77c478bd9Sstevel@tonic-gate * 87c478bd9Sstevel@tonic-gate * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 97c478bd9Sstevel@tonic-gate * or http://www.opensolaris.org/os/licensing. 107c478bd9Sstevel@tonic-gate * See the License for the specific language governing permissions 117c478bd9Sstevel@tonic-gate * and limitations under the License. 127c478bd9Sstevel@tonic-gate * 137c478bd9Sstevel@tonic-gate * When distributing Covered Code, include this CDDL HEADER in each 147c478bd9Sstevel@tonic-gate * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 157c478bd9Sstevel@tonic-gate * If applicable, add the following below this CDDL HEADER, with the 167c478bd9Sstevel@tonic-gate * fields enclosed by brackets "[]" replaced with your own identifying 177c478bd9Sstevel@tonic-gate * information: Portions Copyright [yyyy] [name of copyright owner] 187c478bd9Sstevel@tonic-gate * 197c478bd9Sstevel@tonic-gate * CDDL HEADER END 207c478bd9Sstevel@tonic-gate */ 21e8031f0aSraf 227c478bd9Sstevel@tonic-gate/* 237257d1b4Sraf * Copyright 2008 Sun Microsystems, Inc. All rights reserved. 247c478bd9Sstevel@tonic-gate * Use is subject to license terms. 257c478bd9Sstevel@tonic-gate */ 267c478bd9Sstevel@tonic-gate 27*9a70fc3bSMark J. Nelson .file "abs.s" 287c478bd9Sstevel@tonic-gate 297c478bd9Sstevel@tonic-gate/* 307c478bd9Sstevel@tonic-gate * Assembler program to implement the following C program 317c478bd9Sstevel@tonic-gate * 327c478bd9Sstevel@tonic-gate * int 337c478bd9Sstevel@tonic-gate * abs(int arg) 347c478bd9Sstevel@tonic-gate * { 357c478bd9Sstevel@tonic-gate * return((arg < 0)? -arg: arg); 367c478bd9Sstevel@tonic-gate * } 377c478bd9Sstevel@tonic-gate */ 387c478bd9Sstevel@tonic-gate 397c478bd9Sstevel@tonic-gate#include "SYS.h" 407c478bd9Sstevel@tonic-gate 417c478bd9Sstevel@tonic-gate ENTRY(abs) 427c478bd9Sstevel@tonic-gate movl %edi, %eax 437c478bd9Sstevel@tonic-gate testl %eax, %eax /* arg < 0? */ 447c478bd9Sstevel@tonic-gate jns 1f 457c478bd9Sstevel@tonic-gate negl %eax /* yes, return -arg */ 467c478bd9Sstevel@tonic-gate1: 477c478bd9Sstevel@tonic-gate ret 487c478bd9Sstevel@tonic-gate SET_SIZE(abs) 497c478bd9Sstevel@tonic-gate 507c478bd9Sstevel@tonic-gate ENTRY(labs) 517c478bd9Sstevel@tonic-gate movq %rdi, %rax 527c478bd9Sstevel@tonic-gate testq %rax, %rax /* arg < 0? */ 537c478bd9Sstevel@tonic-gate jns 1f 547c478bd9Sstevel@tonic-gate negq %rax /* yes, return -arg */ 557c478bd9Sstevel@tonic-gate1: 567c478bd9Sstevel@tonic-gate ret 577c478bd9Sstevel@tonic-gate SET_SIZE(labs) 58e8031f0aSraf 59e8031f0aSraf ENTRY(llabs) 60e8031f0aSraf movq %rdi, %rax 61e8031f0aSraf testq %rax, %rax /* arg < 0? */ 62e8031f0aSraf jns 1f 63e8031f0aSraf negq %rax /* yes, return -arg */ 64e8031f0aSraf1: 65e8031f0aSraf ret 66e8031f0aSraf SET_SIZE(llabs) 67