diff options
author | Russell King <rmk@dyn-67.arm.linux.org.uk> | 2005-04-17 10:51:02 -0400 |
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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/testclearbit.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/testclearbit.S')
-rw-r--r-- | arch/arm/lib/testclearbit.S | 15 |
1 files changed, 2 insertions, 13 deletions
diff --git a/arch/arm/lib/testclearbit.S b/arch/arm/lib/testclearbit.S index e07c5bd24307..2dcc4b16b68e 100644 --- a/arch/arm/lib/testclearbit.S +++ b/arch/arm/lib/testclearbit.S | |||
@@ -9,21 +9,10 @@ | |||
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 | ENTRY(_test_and_clear_bit_be) | 15 | ENTRY(_test_and_clear_bit_be) |
15 | eor r0, r0, #0x18 @ big endian byte ordering | 16 | eor r0, r0, #0x18 @ big endian byte ordering |
16 | ENTRY(_test_and_clear_bit_le) | 17 | ENTRY(_test_and_clear_bit_le) |
17 | add r1, r1, r0, lsr #3 @ Get byte offset | 18 | testop bicne, strneb |
18 | and r3, r0, #7 @ Get bit offset | ||
19 | mov r0, #1 | ||
20 | save_and_disable_irqs ip, r2 | ||
21 | ldrb r2, [r1] | ||
22 | tst r2, r0, lsl r3 | ||
23 | bic r2, r2, r0, lsl r3 | ||
24 | strb r2, [r1] | ||
25 | restore_irqs ip | ||
26 | moveq r0, #0 | ||
27 | RETINSTR(mov,pc,lr) | ||
28 | |||
29 | |||