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memcmp.S revision 1.2.26.2 
      1  1.2.26.1    martin /*	$NetBSD: memcmp.S,v 1.2.26.2 2020/04/21 19:37:43 martin Exp $	*/
      2       1.1     joerg /*-
      3       1.1     joerg  * Copyright (c) 2011 The NetBSD Foundation, Inc.
      4       1.1     joerg  * All rights reserved.
      5       1.1     joerg  *
      6       1.1     joerg  * This code is derived from software contributed to The NetBSD Foundation
      7       1.1     joerg  * by Joerg Sonnenberger.
      8       1.1     joerg  *
      9       1.1     joerg  * Redistribution and use in source and binary forms, with or without
     10       1.1     joerg  * modification, are permitted provided that the following conditions
     11       1.1     joerg  * are met:
     12       1.1     joerg  * 1. Redistributions of source code must retain the above copyright
     13       1.1     joerg  *    notice, this list of conditions and the following disclaimer.
     14       1.1     joerg  * 2. Redistributions in binary form must reproduce the above copyright
     15       1.1     joerg  *    notice, this list of conditions and the following disclaimer in the
     16       1.1     joerg  *    documentation and/or other materials provided with the distribution.
     17       1.1     joerg  *
     18       1.1     joerg  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
     19       1.1     joerg  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
     20       1.1     joerg  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     21       1.1     joerg  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
     22       1.1     joerg  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
     23       1.1     joerg  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
     24       1.1     joerg  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
     25       1.1     joerg  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
     26       1.1     joerg  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
     27       1.1     joerg  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
     28       1.1     joerg  * POSSIBILITY OF SUCH DAMAGE.
     29       1.1     joerg  */
     30       1.1     joerg 
     31       1.1     joerg #include <machine/asm.h>
     32  1.2.26.1    martin 	RCSID("$NetBSD: memcmp.S,v 1.2.26.2 2020/04/21 19:37:43 martin Exp $")
     33       1.1     joerg 
     34       1.1     joerg ENTRY(memcmp)
     35       1.1     joerg 	pushl	%esi
     36       1.1     joerg 	pushl	%edi
     37       1.1     joerg 	movl	12(%esp), %edi
     38       1.1     joerg 	movl	16(%esp), %esi
     39       1.1     joerg 	movl	20(%esp), %ecx
     40       1.1     joerg 	xorl	%eax, %eax
     41       1.1     joerg 	rep
     42       1.1     joerg 	cmpsb
     43       1.1     joerg 	popl	%edi
     44       1.1     joerg 	popl	%esi
     45       1.1     joerg 	ja	1f
     46       1.1     joerg 	setnz %al
     47       1.1     joerg 	ret
     48       1.1     joerg 1:
     49       1.1     joerg 	decl %eax
     50       1.1     joerg 	ret
     51       1.2  jakllsch END(memcmp)
     52