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-rw-r--r--arch/arm26/lib/changebit.S28
1 files changed, 0 insertions, 28 deletions
diff --git a/arch/arm26/lib/changebit.S b/arch/arm26/lib/changebit.S
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--- a/arch/arm26/lib/changebit.S
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1/*
2 * linux/arch/arm26/lib/changebit.S
3 *
4 * Copyright (C) 1995-1996 Russell King
5 *
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License version 2 as
8 * published by the Free Software Foundation.
9 */
10#include <linux/linkage.h>
11#include <asm/assembler.h>
12 .text
13
14/* Purpose : Function to change a bit
15 * Prototype: int change_bit(int bit, void *addr)
16 */
17ENTRY(_change_bit_be)
18 eor r0, r0, #0x18 @ big endian byte ordering
19ENTRY(_change_bit_le)
20 and r2, r0, #7
21 mov r3, #1
22 mov r3, r3, lsl r2
23 save_and_disable_irqs ip, r2
24 ldrb r2, [r1, r0, lsr #3]
25 eor r2, r2, r3
26 strb r2, [r1, r0, lsr #3]
27 restore_irqs ip
28 RETINSTR(mov,pc,lr)