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[/] [or1k/] [trunk/] [linux/] [linux-2.4/] [arch/] [arm/] [lib/] [setbit.S] - Rev 1765
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/*
* linux/arch/arm/lib/setbit.S
*
* Copyright (C) 1995-1996 Russell King
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*/
#include <linux/linkage.h>
#include <asm/assembler.h>
.text
/*
* Purpose : Function to set a bit
* Prototype: int set_bit(int bit, void *addr)
*/
ENTRY(set_bit)
and r2, r0, #7
mov r3, #1
mov r3, r3, lsl r2
save_and_disable_irqs ip, r2
ldrb r2, [r1, r0, lsr #3]
orr r2, r2, r3
strb r2, [r1, r0, lsr #3]
restore_irqs ip
RETINSTR(mov,pc,lr)