1*0a6a1f1dSLionel Sambuc/* $NetBSD: memcpy.S,v 1.2 2014/05/23 03:17:31 uebayasi Exp $ */ 2f14fb602SLionel Sambuc/*- 3f14fb602SLionel Sambuc * Copyright (c) 2011 The NetBSD Foundation, Inc. 4f14fb602SLionel Sambuc * All rights reserved. 5f14fb602SLionel Sambuc * 6f14fb602SLionel Sambuc * This code is derived from software contributed to The NetBSD Foundation 7f14fb602SLionel Sambuc * by Joerg Sonnenberger. 8f14fb602SLionel Sambuc * 9f14fb602SLionel Sambuc * Redistribution and use in source and binary forms, with or without 10f14fb602SLionel Sambuc * modification, are permitted provided that the following conditions 11f14fb602SLionel Sambuc * are met: 12f14fb602SLionel Sambuc * 1. Redistributions of source code must retain the above copyright 13f14fb602SLionel Sambuc * notice, this list of conditions and the following disclaimer. 14f14fb602SLionel Sambuc * 2. Redistributions in binary form must reproduce the above copyright 15f14fb602SLionel Sambuc * notice, this list of conditions and the following disclaimer in the 16f14fb602SLionel Sambuc * documentation and/or other materials provided with the distribution. 17f14fb602SLionel Sambuc * 18f14fb602SLionel Sambuc * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 19f14fb602SLionel Sambuc * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 20f14fb602SLionel Sambuc * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 21f14fb602SLionel Sambuc * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 22f14fb602SLionel Sambuc * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 23f14fb602SLionel Sambuc * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 24f14fb602SLionel Sambuc * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 25f14fb602SLionel Sambuc * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 26f14fb602SLionel Sambuc * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 27f14fb602SLionel Sambuc * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 28f14fb602SLionel Sambuc * POSSIBILITY OF SUCH DAMAGE. 29f14fb602SLionel Sambuc */ 30f14fb602SLionel Sambuc 31f14fb602SLionel Sambuc#include <machine/asm.h> 32*0a6a1f1dSLionel Sambuc RCSID("$NetBSD: memcpy.S,v 1.2 2014/05/23 03:17:31 uebayasi Exp $") 33f14fb602SLionel Sambuc 34f14fb602SLionel Sambuc# ifdef BCOPY 35f14fb602SLionel SambucENTRY(bcopy) 36f14fb602SLionel Sambuc pushl %esi 37f14fb602SLionel Sambuc pushl %edi 38f14fb602SLionel Sambuc movl 12(%esp), %esi 39f14fb602SLionel Sambuc movl 16(%esp), %edi 40f14fb602SLionel Sambuc jmp __memmove_start 41f14fb602SLionel Sambuc# endif 42f14fb602SLionel Sambuc# if defined(MEMMOVE) 43f14fb602SLionel SambucENTRY(memcpy) 44f14fb602SLionel SambucENTRY(memmove) 45f14fb602SLionel Sambuc pushl %esi 46f14fb602SLionel Sambuc pushl %edi 47f14fb602SLionel Sambuc movl 12(%esp), %edi 48f14fb602SLionel Sambuc movl 16(%esp), %esi 49f14fb602SLionel Sambuc .globl __memmove_start 50f14fb602SLionel Sambuc__memmove_start: 51f14fb602SLionel Sambuc movl 20(%esp), %ecx 52f14fb602SLionel Sambuc pushl %edi 53f14fb602SLionel Sambuc testl %ecx, %ecx 54f14fb602SLionel Sambuc jz 2f 55f14fb602SLionel Sambuc cmpl %esi, %edi 56f14fb602SLionel Sambuc jb 1f 57f14fb602SLionel Sambuc addl %ecx, %esi 58f14fb602SLionel Sambuc decl %esi 59f14fb602SLionel Sambuc addl %ecx, %edi 60f14fb602SLionel Sambuc decl %edi 61f14fb602SLionel Sambuc std 62f14fb602SLionel Sambuc1: 63f14fb602SLionel Sambuc rep 64f14fb602SLionel Sambuc movsb 65f14fb602SLionel Sambuc2: 66f14fb602SLionel Sambuc cld 67f14fb602SLionel Sambuc popl %eax 68f14fb602SLionel Sambuc popl %edi 69f14fb602SLionel Sambuc popl %esi 70f14fb602SLionel Sambuc ret 71*0a6a1f1dSLionel SambucEND(memcpy) 72*0a6a1f1dSLionel SambucEND(memmove) 73f14fb602SLionel Sambuc# endif /* MEMMOVE */ 74*0a6a1f1dSLionel Sambuc# ifdef BCOPY 75*0a6a1f1dSLionel SambucEND(bcopy) 76*0a6a1f1dSLionel Sambuc# endif 77