diff options
| author | Russell King <rmk@dyn-67.arm.linux.org.uk> | 2005-04-17 15:51:02 +0100 |
|---|---|---|
| committer | Russell King <rmk@dyn-67.arm.linux.org.uk> | 2005-04-17 15:51:02 +0100 |
| commit | 684f970e2fd2dc0eb8292500903f54f1ebda0e75 (patch) | |
| tree | d8736596d79bf95281449f7fe5f72db111eb5a73 /arch/arm/lib/changebit.S | |
| parent | 652a12ef98d16ccd1ee5cdf2c832ce5411ed3262 (diff) | |
[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/changebit.S')
| -rw-r--r-- | arch/arm/lib/changebit.S | 11 |
1 files changed, 2 insertions, 9 deletions
diff --git a/arch/arm/lib/changebit.S b/arch/arm/lib/changebit.S index 3af45cab70e..389567c2409 100644 --- a/arch/arm/lib/changebit.S +++ b/arch/arm/lib/changebit.S @@ -9,6 +9,7 @@ */ #include <linux/linkage.h> #include <asm/assembler.h> +#include "bitops.h" .text /* Purpose : Function to change a bit @@ -17,12 +18,4 @@ ENTRY(_change_bit_be) eor r0, r0, #0x18 @ big endian byte ordering ENTRY(_change_bit_le) - and r2, r0, #7 - mov r3, #1 - mov r3, r3, lsl r2 - save_and_disable_irqs ip, r2 - ldrb r2, [r1, r0, lsr #3] - eor r2, r2, r3 - strb r2, [r1, r0, lsr #3] - restore_irqs ip - RETINSTR(mov,pc,lr) + bitop eor |