cachepc-linux

Fork of AMDESE/linux with modifications for CachePC side-channel attack
git clone https://git.sinitax.com/sinitax/cachepc-linux
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memchr.S (412B)

      1/* SPDX-License-Identifier: GPL-2.0 */
      2/* $Id: memchr.S,v 1.1 2000/04/14 16:49:01 mjd Exp $
      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>
     15ENTRY(memchr)
     16	tst	r6,r6
     17	bt/s	2f
     18	 exts.b	r5,r5
     191:	mov.b	@r4,r1
     20	cmp/eq	r1,r5
     21	bt/s	3f
     22	 dt	r6
     23	bf/s	1b
     24	 add	#1,r4
     252:	mov	#0,r4
     263:	rts
     27	 mov	r4,r0