11849Swollman/* 21849Swollman * Copyright (c) 1993 Winning Strategies, Inc. 31849Swollman * All rights reserved. 41849Swollman * 51849Swollman * Redistribution and use in source and binary forms, with or without 61849Swollman * modification, are permitted provided that the following conditions 71849Swollman * are met: 81849Swollman * 1. Redistributions of source code must retain the above copyright 91849Swollman * notice, this list of conditions and the following disclaimer. 101849Swollman * 2. Redistributions in binary form must reproduce the above copyright 111849Swollman * notice, this list of conditions and the following disclaimer in the 121849Swollman * documentation and/or other materials provided with the distribution. 131849Swollman * 3. All advertising materials mentioning features or use of this software 141849Swollman * must display the following acknowledgement: 151849Swollman * This product includes software developed by Winning Strategies, Inc. 161849Swollman * 4. The name of the author may not be used to endorse or promote products 171849Swollman * derived from this software without specific prior written permission 181849Swollman * 191849Swollman * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 201849Swollman * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 211849Swollman * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 221849Swollman * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 231849Swollman * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 241849Swollman * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 251849Swollman * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 261849Swollman * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 271849Swollman * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 281849Swollman * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 291849Swollman */ 301849Swollman 3185437Speter#include <machine/asm.h> 3293000Sobrien__FBSDID("$FreeBSD$"); 331849Swollman 341849Swollman/* 351849Swollman * bcmp (void *b1, void *b2, size_t len) 361849Swollman * 371849Swollman * Written by: 381849Swollman * J.T. Conklin (jtc@wimsey.com), Winning Strategies, Inc. 391849Swollman */ 401849Swollman 411849SwollmanENTRY(bcmp) 421849Swollman pushl %edi 431849Swollman pushl %esi 441849Swollman movl 12(%esp),%edi 451849Swollman movl 16(%esp),%esi 461849Swollman cld /* set compare direction forward */ 471849Swollman 481849Swollman movl 20(%esp),%ecx /* compare by words */ 491849Swollman shrl $2,%ecx 501849Swollman repe 511849Swollman cmpsl 521849Swollman jne L1 531849Swollman 541849Swollman movl 20(%esp),%ecx /* compare remainder by bytes */ 551849Swollman andl $3,%ecx 561849Swollman repe 571849Swollman cmpsb 58145383SalcL1: 59145383Salc setne %al 60145383Salc movsbl %al,%eax 61145383Salc popl %esi 621849Swollman popl %edi 631849Swollman ret 64184548SpeterEND(bcmp) 65217106Skib 66217106Skib .section .note.GNU-stack,"",%progbits 67