/* * CDDL HEADER START * * The contents of this file are subject to the terms of the * Common Development and Distribution License (the "License"). * You may not use this file except in compliance with the License. * * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE * or http://www.opensolaris.org/os/licensing. * See the License for the specific language governing permissions * and limitations under the License. * * When distributing Covered Code, include this CDDL HEADER in each * file and include the License file at usr/src/OPENSOLARIS.LICENSE. * If applicable, add the following below this CDDL HEADER, with the * fields enclosed by brackets "[]" replaced with your own identifying * information: Portions Copyright [yyyy] [name of copyright owner] * * CDDL HEADER END */ /* * Copyright 2008 Sun Microsystems, Inc. All rights reserved. * Use is subject to license terms. */ #pragma ident "%Z%%M% %I% %E% SMI" .file "%M%" /* * Assembler program to implement the following C program * * int * abs(int arg) * { * return((arg < 0)? -arg: arg); * } */ #include "SYS.h" ENTRY(abs) movl %edi, %eax testl %eax, %eax /* arg < 0? */ jns 1f negl %eax /* yes, return -arg */ 1: ret SET_SIZE(abs) ENTRY(labs) movq %rdi, %rax testq %rax, %rax /* arg < 0? */ jns 1f negq %rax /* yes, return -arg */ 1: ret SET_SIZE(labs) ENTRY(llabs) movq %rdi, %rax testq %rax, %rax /* arg < 0? */ jns 1f negq %rax /* yes, return -arg */ 1: ret SET_SIZE(llabs)