1*81621933Sguenther/* $OpenBSD: bcopy.S,v 1.5 2022/12/08 01:25:45 guenther Exp $ */ 27c0511a1Sdrahn/* $NetBSD: bcopy.S,v 1.2 2001/07/16 05:50:06 matt Exp $ */ 37c0511a1Sdrahn 47c0511a1Sdrahn/*- 57c0511a1Sdrahn * Copyright (c) 1997 The NetBSD Foundation, Inc. 67c0511a1Sdrahn * All rights reserved. 77c0511a1Sdrahn * 87c0511a1Sdrahn * This code is derived from software contributed to The NetBSD Foundation 97c0511a1Sdrahn * by Neil A. Carson and Mark Brinicombe 107c0511a1Sdrahn * 117c0511a1Sdrahn * Redistribution and use in source and binary forms, with or without 127c0511a1Sdrahn * modification, are permitted provided that the following conditions 137c0511a1Sdrahn * are met: 147c0511a1Sdrahn * 1. Redistributions of source code must retain the above copyright 157c0511a1Sdrahn * notice, this list of conditions and the following disclaimer. 167c0511a1Sdrahn * 2. Redistributions in binary form must reproduce the above copyright 177c0511a1Sdrahn * notice, this list of conditions and the following disclaimer in the 187c0511a1Sdrahn * documentation and/or other materials provided with the distribution. 197c0511a1Sdrahn * 207c0511a1Sdrahn * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 217c0511a1Sdrahn * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 227c0511a1Sdrahn * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 237c0511a1Sdrahn * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 247c0511a1Sdrahn * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 257c0511a1Sdrahn * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 267c0511a1Sdrahn * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 277c0511a1Sdrahn * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 287c0511a1Sdrahn * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 297c0511a1Sdrahn * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 307c0511a1Sdrahn * POSSIBILITY OF SUCH DAMAGE. 317c0511a1Sdrahn */ 327c0511a1Sdrahn 337c0511a1Sdrahn#include <machine/asm.h> 347c0511a1Sdrahn 357c0511a1Sdrahn/* bcopy = memcpy/memmove with arguments reversed. */ 367c0511a1Sdrahn 377c0511a1SdrahnENTRY(bcopy) 387c0511a1Sdrahn /* switch the source and destination registers */ 397c0511a1Sdrahn eor r0, r1, r0 407c0511a1Sdrahn eor r1, r0, r1 417c0511a1Sdrahn eor r0, r1, r0 42*81621933Sguenther b PIC_SYM(memmove, PLT) 43