/* SPDX-License-Identifier: GPL-2.0 */
/* $Id: memchr.S,v 1.1 2000/04/14 16:49:01 mjd Exp $
 *
 * "memchr" implementation of SuperH
 *
 * Copyright (C) 1999  Niibe Yutaka
 *
 */

/*
 * void *memchr(const void *s, int c, size_t n);
 */

#include <linux/linkage.h>
ENTRY(memchr)
        tst     r6,r6
        bt/s    2f
         exts.b r5,r5
1:      mov.b   @r4,r1
        cmp/eq  r1,r5
        bt/s    3f
         dt     r6
        bf/s    1b
         add    #1,r4
2:      mov     #0,r4
3:      rts
         mov    r4,r0