diff options
author | Russell King <rmk@dyn-67.arm.linux.org.uk> | 2005-04-17 10:51:02 -0400 |
---|---|---|
committer | Russell King <rmk@dyn-67.arm.linux.org.uk> | 2005-04-17 10:51:02 -0400 |
commit | 684f970e2fd2dc0eb8292500903f54f1ebda0e75 (patch) | |
tree | d8736596d79bf95281449f7fe5f72db111eb5a73 /arch/arm/lib/clearbit.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/clearbit.S')
-rw-r--r-- | arch/arm/lib/clearbit.S | 13 |
1 files changed, 2 insertions, 11 deletions
diff --git a/arch/arm/lib/clearbit.S b/arch/arm/lib/clearbit.S index 069a2ce413f0..347516533025 100644 --- a/arch/arm/lib/clearbit.S +++ b/arch/arm/lib/clearbit.S | |||
@@ -9,6 +9,7 @@ | |||
9 | */ | 9 | */ |
10 | #include <linux/linkage.h> | 10 | #include <linux/linkage.h> |
11 | #include <asm/assembler.h> | 11 | #include <asm/assembler.h> |
12 | #include "bitops.h" | ||
12 | .text | 13 | .text |
13 | 14 | ||
14 | /* | 15 | /* |
@@ -18,14 +19,4 @@ | |||
18 | ENTRY(_clear_bit_be) | 19 | ENTRY(_clear_bit_be) |
19 | eor r0, r0, #0x18 @ big endian byte ordering | 20 | eor r0, r0, #0x18 @ big endian byte ordering |
20 | ENTRY(_clear_bit_le) | 21 | ENTRY(_clear_bit_le) |
21 | and r2, r0, #7 | 22 | bitop bic |
22 | mov r3, #1 | ||
23 | mov r3, r3, lsl r2 | ||
24 | save_and_disable_irqs ip, r2 | ||
25 | ldrb r2, [r1, r0, lsr #3] | ||
26 | bic r2, r2, r3 | ||
27 | strb r2, [r1, r0, lsr #3] | ||
28 | restore_irqs ip | ||
29 | RETINSTR(mov,pc,lr) | ||
30 | |||
31 | |||