diff options
| author | Russell King <rmk@dyn-67.arm.linux.org.uk> | 2005-04-17 18:51:02 +0400 |
|---|---|---|
| committer | Russell King <rmk@dyn-67.arm.linux.org.uk> | 2005-04-17 18:51:02 +0400 |
| commit | 684f970e2fd2dc0eb8292500903f54f1ebda0e75 (patch) | |
| tree | d8736596d79bf95281449f7fe5f72db111eb5a73 /arch/arm/lib/testsetbit.S | |
| parent | 652a12ef98d16ccd1ee5cdf2c832ce5411ed3262 (diff) | |
| download | linux-684f970e2fd2dc0eb8292500903f54f1ebda0e75.tar.xz | |
[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.S | 15 |
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 |