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bcopy.S revision 1.1.2.1 
      1  1.1.2.1  nathanw /*	$NetBSD: bcopy.S,v 1.1.2.1 2001/10/08 20:17:04 nathanw Exp $	*/
      2      1.1    bjh21 
      3      1.1    bjh21 /*-
      4      1.1    bjh21  * Copyright (c) 1997 The NetBSD Foundation, Inc.
      5      1.1    bjh21  * All rights reserved.
      6      1.1    bjh21  *
      7      1.1    bjh21  * This code is derived from software contributed to The NetBSD Foundation
      8      1.1    bjh21  * by Neil A. Carson and Mark Brinicombe
      9      1.1    bjh21  *
     10      1.1    bjh21  * Redistribution and use in source and binary forms, with or without
     11      1.1    bjh21  * modification, are permitted provided that the following conditions
     12      1.1    bjh21  * are met:
     13      1.1    bjh21  * 1. Redistributions of source code must retain the above copyright
     14      1.1    bjh21  *    notice, this list of conditions and the following disclaimer.
     15      1.1    bjh21  * 2. Redistributions in binary form must reproduce the above copyright
     16      1.1    bjh21  *    notice, this list of conditions and the following disclaimer in the
     17      1.1    bjh21  *    documentation and/or other materials provided with the distribution.
     18      1.1    bjh21  * 3. All advertising materials mentioning features or use of this software
     19      1.1    bjh21  *    must display the following acknowledgement:
     20      1.1    bjh21  *	This product includes software developed by the NetBSD
     21      1.1    bjh21  *	Foundation, Inc. and its contributors.
     22      1.1    bjh21  * 4. Neither the name of The NetBSD Foundation nor the names of its
     23      1.1    bjh21  *    contributors may be used to endorse or promote products derived
     24      1.1    bjh21  *    from this software without specific prior written permission.
     25      1.1    bjh21  *
     26      1.1    bjh21  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
     27      1.1    bjh21  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
     28      1.1    bjh21  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     29      1.1    bjh21  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
     30      1.1    bjh21  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
     31      1.1    bjh21  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
     32      1.1    bjh21  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
     33      1.1    bjh21  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
     34      1.1    bjh21  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
     35      1.1    bjh21  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
     36      1.1    bjh21  * POSSIBILITY OF SUCH DAMAGE.
     37      1.1    bjh21  */
     38      1.1    bjh21 
     39      1.1    bjh21 #include <machine/asm.h>
     40      1.1    bjh21 
     41      1.1    bjh21 /* bcopy = memcpy/memmove with arguments reversed. */
     42      1.1    bjh21 
     43      1.1    bjh21 ENTRY(bcopy)
     44      1.1    bjh21 	/* switch the source and destination registers */
     45      1.1    bjh21 	eor     r0, r1, r0
     46      1.1    bjh21 	eor     r1, r0, r1
     47      1.1    bjh21 	eor     r0, r1, r0
     48  1.1.2.1  nathanw 	b	PIC_SYM(_C_LABEL(_memcpy), PLT)
     49