81 lines
2.3 KiB
ArmAsm
81 lines
2.3 KiB
ArmAsm
/* $NetBSD: movstr_i4.S,v 1.6 2009/01/07 22:15:18 uwe Exp $ */
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/*-
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* Copyright (C) 2002 SHIMIZU Ryo. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. The name of the author may not be used to endorse or promote products
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* derived from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include <machine/asm.h>
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#ifdef __ELF__
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.hidden __movstr_i4_odd, __movmem_i4_odd
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.hidden __movstr_i4_even, __movmem_i4_even
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#endif
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NENTRY(__movstr_i4_odd)
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add #-8,r4
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nop
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odd_loop:
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mov.l @r5+,r0
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add #8,r4
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mov.l @r5+,r1
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dt r6
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mov.l r0,@(0,r4)
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bf/s odd_loop
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mov.l r1,@(4,r4)
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mov.l @r5+,r0
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mov.l @r5+,r1
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mov.l @r5+,r2
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mov.l r0,@(8,r4)
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mov.l r1,@(12,r4)
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rts
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mov.l r2,@(16,r4)
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NENTRY(__movstr_i4_even)
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add #-8,r4
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nop
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even_loop:
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mov.l @r5+,r0
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add #8,r4
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mov.l @r5+,r1
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dt r6
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mov.l r0,@(0,r4)
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bf/s even_loop
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mov.l r1,@(4,r4)
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mov.l @r5+,r0
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mov.l @r5+,r1
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mov.l r0,@(8,r4)
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rts
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mov.l r1,@(12,r4)
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/* gcc4 uses movmem, older versions use movstr */
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STRONG_ALIAS(__movmem_i4_odd, __movstr_i4_odd)
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STRONG_ALIAS(__movmem_i4_even, __movstr_i4_even)
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