This repository has been archived on 2023-08-20. You can view files and clone it. You cannot open issues or pull requests or push a commit.
Files

34 lines
632 B
ArmAsm

/* memmove.S: Simple memmove implementation.
*
* Copyright (C) 1997, 2004 David S. Miller (davem@redhat.com)
* Copyright (C) 1996, 1997, 1998, 1999 Jakub Jelinek (jj@ultra.linux.cz)
*/
.text
.align 32
.globl memmove
.type memmove,#function
memmove:
mov %o0, %g1
cmp %o0, %o1
blu,pt %xcc, memcpy
sub %o0, %o1, %g5
add %o1, %o2, %g3
cmp %g3, %o0
bleu,pt %xcc, memcpy
add %o1, %o2, %g5
add %o0, %o2, %o5
sub %g5, 1, %o1
sub %o5, 1, %o0
1: ldub [%o1], %g5
subcc %o2, 1, %o2
sub %o1, 1, %o1
stb %g5, [%o0]
bne,pt %icc, 1b
sub %o0, 1, %o0
retl
mov %g1, %o0
.size memmove, .-memmove