xref: /minix3/common/lib/libc/arch/i386/string/small/strcpy.S (revision f14fb602092e015ff630df58e17c2a9cd57d29b3)
1*f14fb602SLionel Sambuc/*	$NetBSD: strcpy.S,v 1.1 2011/06/16 16:39:14 joerg Exp $	*/
2*f14fb602SLionel Sambuc/*-
3*f14fb602SLionel Sambuc * Copyright (c) 2011 The NetBSD Foundation, Inc.
4*f14fb602SLionel Sambuc * All rights reserved.
5*f14fb602SLionel Sambuc *
6*f14fb602SLionel Sambuc * This code is derived from software contributed to The NetBSD Foundation
7*f14fb602SLionel Sambuc * by Joerg Sonnenberger.
8*f14fb602SLionel Sambuc *
9*f14fb602SLionel Sambuc * Redistribution and use in source and binary forms, with or without
10*f14fb602SLionel Sambuc * modification, are permitted provided that the following conditions
11*f14fb602SLionel Sambuc * are met:
12*f14fb602SLionel Sambuc * 1. Redistributions of source code must retain the above copyright
13*f14fb602SLionel Sambuc *    notice, this list of conditions and the following disclaimer.
14*f14fb602SLionel Sambuc * 2. Redistributions in binary form must reproduce the above copyright
15*f14fb602SLionel Sambuc *    notice, this list of conditions and the following disclaimer in the
16*f14fb602SLionel Sambuc *    documentation and/or other materials provided with the distribution.
17*f14fb602SLionel Sambuc *
18*f14fb602SLionel Sambuc * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
19*f14fb602SLionel Sambuc * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
20*f14fb602SLionel Sambuc * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
21*f14fb602SLionel Sambuc * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
22*f14fb602SLionel Sambuc * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
23*f14fb602SLionel Sambuc * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
24*f14fb602SLionel Sambuc * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
25*f14fb602SLionel Sambuc * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
26*f14fb602SLionel Sambuc * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
27*f14fb602SLionel Sambuc * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
28*f14fb602SLionel Sambuc * POSSIBILITY OF SUCH DAMAGE.
29*f14fb602SLionel Sambuc */
30*f14fb602SLionel Sambuc
31*f14fb602SLionel Sambuc#include <machine/asm.h>
32*f14fb602SLionel Sambuc	RCSID("$NetBSD: strcpy.S,v 1.1 2011/06/16 16:39:14 joerg Exp $")
33*f14fb602SLionel Sambuc
34*f14fb602SLionel SambucENTRY(strcpy)
35*f14fb602SLionel Sambuc	pushl	%esi
36*f14fb602SLionel Sambuc	pushl	%edi
37*f14fb602SLionel Sambuc	movl	12(%esp), %edi
38*f14fb602SLionel Sambuc	movl	16(%esp), %esi
39*f14fb602SLionel Sambuc	pushl	%edi
40*f14fb602SLionel Sambuc1:
41*f14fb602SLionel Sambuc	lodsb
42*f14fb602SLionel Sambuc	stosb
43*f14fb602SLionel Sambuc	testb	%al, %al
44*f14fb602SLionel Sambuc	jne 1b
45*f14fb602SLionel Sambuc	popl	%eax
46*f14fb602SLionel Sambuc	popl	%edi
47*f14fb602SLionel Sambuc	popl	%esi
48*f14fb602SLionel Sambuc	ret
49