60 lines
1.4 KiB
ArmAsm
60 lines
1.4 KiB
ArmAsm
/*
|
|
* GRUB -- GRand Unified Bootloader
|
|
* Copyright (C) 2009,2010 Free Software Foundation, Inc.
|
|
*
|
|
* GRUB is free software: you can redistribute it and/or modify
|
|
* it under the terms of the GNU General Public License as published by
|
|
* the Free Software Foundation, either version 3 of the License, or
|
|
* (at your option) any later version.
|
|
*
|
|
* GRUB is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
* GNU General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU General Public License
|
|
* along with GRUB. If not, see <http://www.gnu.org/licenses/>.
|
|
*/
|
|
|
|
#include <grub/symbol.h>
|
|
|
|
.p2align 4 /* force 16-byte alignment */
|
|
|
|
VARIABLE (grub_relocator_forward_start)
|
|
mr 3, 9
|
|
mr 4, 10
|
|
|
|
copycont1:
|
|
lbz 11,0(8)
|
|
stb 11,0(9)
|
|
addi 8, 8, 0x1
|
|
addi 9, 9, 0x1
|
|
addi 10, 10, -1
|
|
cmpwi 10, 0
|
|
bne copycont1
|
|
|
|
#include "../../kern/powerpc/cache_flush.S"
|
|
|
|
VARIABLE (grub_relocator_forward_end)
|
|
|
|
VARIABLE (grub_relocator_backward_start)
|
|
mr 3, 9
|
|
mr 4, 10
|
|
|
|
add 9, 9, 10
|
|
add 8, 8, 10
|
|
/* Backward movsl is implicitly off-by-one. compensate that. */
|
|
addi 9, 9, -1
|
|
addi 8, 8, -1
|
|
copycont2:
|
|
lbz 11,0(8)
|
|
stb 11,0(9)
|
|
addi 8, 8, -1
|
|
addi 9, 9, -1
|
|
addi 10, 10, -1
|
|
cmpwi 10, 0
|
|
bne copycont2
|
|
|
|
#include "../../kern/powerpc/cache_flush.S"
|
|
|
|
VARIABLE (grub_relocator_backward_end)
|