2008-05-19 16:52:27 -07:00
|
|
|
/*
|
2005-04-16 15:20:36 -07:00
|
|
|
* Sparc64 optimized memcmp code.
|
|
|
|
|
*
|
|
|
|
|
* Copyright (C) 1997 Jakub Jelinek (jj@sunsite.mff.cuni.cz)
|
|
|
|
|
* Copyright (C) 2000 David S. Miller (davem@redhat.com)
|
|
|
|
|
*/
|
|
|
|
|
|
|
|
|
|
.text
|
|
|
|
|
.align 32
|
|
|
|
|
.globl __memcmp, memcmp
|
|
|
|
|
__memcmp:
|
|
|
|
|
memcmp:
|
|
|
|
|
cmp %o2, 0 ! IEU1 Group
|
|
|
|
|
loop: be,pn %icc, ret_0 ! CTI
|
|
|
|
|
nop ! IEU0
|
|
|
|
|
ldub [%o0], %g7 ! LSU Group
|
|
|
|
|
ldub [%o1], %g3 ! LSU Group
|
|
|
|
|
sub %o2, 1, %o2 ! IEU0
|
|
|
|
|
add %o0, 1, %o0 ! IEU1
|
|
|
|
|
add %o1, 1, %o1 ! IEU0 Group
|
|
|
|
|
subcc %g7, %g3, %g3 ! IEU1 Group
|
|
|
|
|
be,pt %icc, loop ! CTI
|
|
|
|
|
cmp %o2, 0 ! IEU1 Group
|
|
|
|
|
|
|
|
|
|
ret_n0: retl
|
|
|
|
|
mov %g3, %o0
|
|
|
|
|
ret_0: retl
|
|
|
|
|
mov 0, %o0
|
