/*
 * linux/arch/arm/lib/clearbit.S
 *
 * Copyright (C) 1995-1996 Russell King
 */

#include <linux/linkage.h>
#include <asm/assembler.h>
                .text

/*
 * Purpose  : Function to clear a bit
 * Prototype: int clear_bit(int bit, void *addr)
 */

ENTRY(clear_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]
		bic	r2, r2, r3
		strb	r2, [r1, r0, lsr #3]
		restore_irqs ip
		RETINSTR(mov,pc,lr)