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authorRussell King <rmk@dyn-67.arm.linux.org.uk>2005-04-17 15:51:02 +0100
committerRussell King <rmk@dyn-67.arm.linux.org.uk>2005-04-17 15:51:02 +0100
commit684f970e2fd2dc0eb8292500903f54f1ebda0e75 (patch)
treed8736596d79bf95281449f7fe5f72db111eb5a73 /arch/arm/lib/testsetbit.S
parent652a12ef98d16ccd1ee5cdf2c832ce5411ed3262 (diff)
downloadlinux-linaro-stable-684f970e2fd2dc0eb8292500903f54f1ebda0e75.tar.gz
[PATCH] ARM: bitops
Convert ARM bitop assembly to a macro. All bitops follow the same format, so it's silly duplicating the code when only one or two instructions are different. Signed-off-by: Russell King <rmk@arm.linux.org.uk>
Diffstat (limited to 'arch/arm/lib/testsetbit.S')
-rw-r--r--arch/arm/lib/testsetbit.S15
1 files changed, 2 insertions, 13 deletions
diff --git a/arch/arm/lib/testsetbit.S b/arch/arm/lib/testsetbit.S
index a570fc74cddd..9011c969761a 100644
--- a/arch/arm/lib/testsetbit.S
+++ b/arch/arm/lib/testsetbit.S
@@ -9,21 +9,10 @@
*/
#include <linux/linkage.h>
#include <asm/assembler.h>
+#include "bitops.h"
.text
ENTRY(_test_and_set_bit_be)
eor r0, r0, #0x18 @ big endian byte ordering
ENTRY(_test_and_set_bit_le)
- add r1, r1, r0, lsr #3 @ Get byte offset
- and r3, r0, #7 @ Get bit offset
- mov r0, #1
- save_and_disable_irqs ip, r2
- ldrb r2, [r1]
- tst r2, r0, lsl r3
- orr r2, r2, r0, lsl r3
- strb r2, [r1]
- restore_irqs ip
- moveq r0, #0
- RETINSTR(mov,pc,lr)
-
-
+ testop orreq, streqb