1*84d9c625SLionel Sambuc/* $NetBSD: strcpy.S,v 1.4 2013/09/07 19:06:29 chs Exp $ */ 2b6cbf720SGianluca Guida 3b6cbf720SGianluca Guida/*- 4b6cbf720SGianluca Guida * Copyright (c) 1990 The Regents of the University of California. 5b6cbf720SGianluca Guida * All rights reserved. 6b6cbf720SGianluca Guida * 7b6cbf720SGianluca Guida * This code is derived from software contributed to Berkeley by 8b6cbf720SGianluca Guida * the Systems Programming Group of the University of Utah Computer 9b6cbf720SGianluca Guida * Science Department. 10b6cbf720SGianluca Guida * 11b6cbf720SGianluca Guida * Redistribution and use in source and binary forms, with or without 12b6cbf720SGianluca Guida * modification, are permitted provided that the following conditions 13b6cbf720SGianluca Guida * are met: 14b6cbf720SGianluca Guida * 1. Redistributions of source code must retain the above copyright 15b6cbf720SGianluca Guida * notice, this list of conditions and the following disclaimer. 16b6cbf720SGianluca Guida * 2. Redistributions in binary form must reproduce the above copyright 17b6cbf720SGianluca Guida * notice, this list of conditions and the following disclaimer in the 18b6cbf720SGianluca Guida * documentation and/or other materials provided with the distribution. 19b6cbf720SGianluca Guida * 3. Neither the name of the University nor the names of its contributors 20b6cbf720SGianluca Guida * may be used to endorse or promote products derived from this software 21b6cbf720SGianluca Guida * without specific prior written permission. 22b6cbf720SGianluca Guida * 23b6cbf720SGianluca Guida * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 24b6cbf720SGianluca Guida * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 25b6cbf720SGianluca Guida * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 26b6cbf720SGianluca Guida * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 27b6cbf720SGianluca Guida * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 28b6cbf720SGianluca Guida * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 29b6cbf720SGianluca Guida * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 30b6cbf720SGianluca Guida * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 31b6cbf720SGianluca Guida * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 32b6cbf720SGianluca Guida * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 33b6cbf720SGianluca Guida * SUCH DAMAGE. 34b6cbf720SGianluca Guida */ 35b6cbf720SGianluca Guida 36b6cbf720SGianluca Guida#include <machine/asm.h> 37b6cbf720SGianluca Guida 38b6cbf720SGianluca Guida#if defined(LIBC_SCCS) && !defined(lint) 39b6cbf720SGianluca Guida#if 0 40b6cbf720SGianluca Guida RCSID("from: @(#)strcpy.s 5.1 (Berkeley) 5/12/90") 41b6cbf720SGianluca Guida#else 42*84d9c625SLionel Sambuc RCSID("$NetBSD: strcpy.S,v 1.4 2013/09/07 19:06:29 chs Exp $") 43b6cbf720SGianluca Guida#endif 44b6cbf720SGianluca Guida#endif /* LIBC_SCCS and not lint */ 45b6cbf720SGianluca Guida 46b6cbf720SGianluca GuidaENTRY(strcpy) 47*84d9c625SLionel Sambuc movl 8(%sp),%a0 | a0 = fromaddr 48*84d9c625SLionel Sambuc movl 4(%sp),%d0 | return value is toaddr 49b6cbf720SGianluca Guida movl %d0,%a1 | a1 = toaddr 50*84d9c625SLionel Sambuc.Lscloop: 51*84d9c625SLionel Sambuc movb (%a0)+,(%a1)+ | copy a byte 52*84d9c625SLionel Sambuc jne .Lscloop | copied non-null, keep going 53b6cbf720SGianluca Guida#ifdef __SVR4_ABI__ 54b6cbf720SGianluca Guida moveal %d0,%a0 55b6cbf720SGianluca Guida#endif 56b6cbf720SGianluca Guida rts 57*84d9c625SLionel SambucEND(strcpy) 58