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 .file "lsub.s" 28 29/ Double long subtraction routine. 30 31#include "SYS.h" 32 33 .set lop,4 34 .set rop,12 35 .set ans,0 36 37 ENTRY(lsub) 38 popl %eax 39 xchgl %eax,0(%esp) 40 movl lop(%esp),%ecx 41 subl rop(%esp),%ecx 42 movl lop+4(%esp),%edx 43 sbbl rop+4(%esp),%edx 44 movl %ecx,ans(%eax) 45 movl %edx,ans+4(%eax) 46 ret 47 SET_SIZE(lsub) 48