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/* $NetBSD: movstr.S,v 1.9 2009/01/07 22:15:18 uwe Exp $ */
/*-
* Copyright (C) 1999 Tsubai Masanari. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include <machine/asm.h>
#ifdef __ELF__
.hidden __movstr, __movmem
#endif
NENTRY(__movstr)
mov #16, r0
cmp/gt r0, r6
bf loop2
.align 2
loop1:
mov.l @r5+, r0
mov.l r0, @r4
mov.l @r5+, r0
mov.l r0, @(4, r4)
mov.l @r5+, r0
mov.l r0, @(8, r4)
mov.l @r5+, r0
mov.l r0, @(12, r4)
mov.l @r5+, r0
mov.l r0, @(16, r4)
mov.l @r5+, r0
mov.l r0, @(20, r4)
mov.l @r5+, r0
mov.l r0, @(24, r4)
mov.l @r5+, r0
mov.l r0, @(28, r4)
mov.l @r5+, r0
mov.l r0, @(32, r4)
mov.l @r5+, r0
mov.l r0, @(36, r4)
mov.l @r5+, r0
mov.l r0, @(40, r4)
mov.l @r5+, r0
mov.l r0, @(44, r4)
mov.l @r5+, r0
mov.l r0, @(48, r4)
mov.l @r5+, r0
mov.l r0, @(52, r4)
mov.l @r5+, r0
mov.l r0, @(56, r4)
mov.l @r5+, r0
mov.l r0, @(60, r4)
add #-16, r6
add #64, r4
mov #16, r0
cmp/gt r0, r6
bt loop1
loop2:
add #-32, r6
.align 2
1:
mov.l @r5+, r0
mov.l r0, @r4
add #4, r4
add #1, r6
tst r6, r6
bf 1b
rts
nop
/* gcc4 uses movmem, older versions use movstr */
STRONG_ALIAS(__movmem, __movstr)
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