/*
* linux/arch/arm/lib/io-writesl.S
*
* Copyright (C) 1995-2000 Russell King
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*/
#include <linux/linkage.h>
#include <asm/assembler.h>
#include <asm/hardware.h>
ENTRY(__raw_writesl)
teq r2, #0 @ do we have to check for the zero len?
moveq pc, lr
ands ip, r1, #3
bne 2f
tst r2, #1
ldrne r3, [r1], #4
strne r3, [r0, #0]
1: subs r2, r2, #2
ldrcs r3, [r1], #4
ldrcs ip, [r1], #4
strcs r3, [r0, #0]
strcs ip, [r0, #0]
bcs 1b
mov pc, lr
2: bic r1, r1, #3
cmp ip, #2
ldr r3, [r1], #4
bgt 4f
blt 5f
3: mov ip, r3, lsr #16
ldr r3, [r1], #4
subs r2, r2, #1
orr ip, ip, r3, lsl #16
str ip, [r0, #0]
bne 3b
mov pc, lr
4: mov ip, r3, lsr #24
ldr r3, [r1], #4
subs r2, r2, #1
orr ip, ip, r3, lsl #8
str ip, [r0, #0]
bne 4b
mov pc, lr
5: mov ip, r3, lsr #8
ldr r3, [r1], #4
subs r2, r2, #1
orr ip, ip, r3, lsl #24
str ip, [r0, #0]
bne 5b
mov pc, lr