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sparc: Commonize memcmp assembler.

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Signed-off-by: David S. Miller <davem@davemloft.net>
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David S. Miller
2008-12-09 04:09:07 -08:00
parent ae984d72e0
commit 18cdae68e7
6 changed files with 28 additions and 63 deletions
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27
arch/sparc/lib/memcmp.S Normal file
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/* Sparc optimized memcmp code.
*
* Copyright (C) 1997 Jakub Jelinek (jj@sunsite.mff.cuni.cz)
* Copyright (C) 2000, 2008 David S. Miller (davem@davemloft.net)
*/
#include <linux/linkage.h>
#include <asm/asm.h>
.text
ENTRY(memcmp)
cmp %o2, 0
1: BRANCH32(be, pn, 2f)
nop
ldub [%o0], %g7
ldub [%o1], %g3
sub %o2, 1, %o2
add %o0, 1, %o0
add %o1, 1, %o1
subcc %g7, %g3, %g3
BRANCH32(be, pt, 1b)
cmp %o2, 0
retl
mov %g3, %o0
2: retl
mov 0, %o0
ENDPROC(memcmp)