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/*

 *  linux/arch/arm/lib/testsetbit.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 

#include 

                .text

ENTRY(test_and_set_bit)

                add     r1, r1, r0, lsr #3      @ Get byte offset

                and     r3, r0, #7              @ Get bit offset

                mov     r0, #1

                save_and_disable_irqs ip, r2

                ldrb    r2, [r1]

                tst     r2, r0, lsl r3

                orr     r2, r2, r0, lsl r3

                strb    r2, [r1]

                restore_irqs ip

                moveq   r0, #0

                RETINSTR(mov,pc,lr)