1 /* SPDX-License-Identifier: GPL-2.0 */
2 /* $Id: memchr.S,v 1.1 2000/04/14 16:49:01 mjd
3 *
4 * "memchr" implementation of SuperH
5 *
6 * Copyright (C) 1999 Niibe Yutaka
7 *
8 */
9
10 /*
11 * void *memchr(const void *s, int c, size_t n
12 */
13
14 #include <linux/linkage.h>
15 ENTRY(memchr)
16 tst r6,r6
17 bt/s 2f
18 exts.b r5,r5
19 1: mov.b @r4,r1
20 cmp/eq r1,r5
21 bt/s 3f
22 dt r6
23 bf/s 1b
24 add #1,r4
25 2: mov #0,r4
26 3: rts
27 mov r4,r0
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