2008-12-09 20:09:07 +08:00
|
|
|
/* 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>
|
2016-01-17 10:39:30 +08:00
|
|
|
#include <asm/export.h>
|
2008-12-09 20:09:07 +08:00
|
|
|
|
|
|
|
|
.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)
|
2016-01-17 10:39:30 +08:00
|
|
|
EXPORT_SYMBOL(memcmp)
|
