1/*	$NetBSD: atomic_xor_32.S,v 1.2 2015/03/27 06:42:37 matt Exp $	*/
2
3/*-
4 * Copyright (c) 2014 The NetBSD Foundation, Inc.
5 * All rights reserved.
6 *
7 * This code is derived from software contributed to The NetBSD Foundation
8 * by Matt Thomas of 3am Software Foundry.
9 *
10 * Redistribution and use in source and binary forms, with or without
11 * modification, are permitted provided that the following conditions
12 * are met:
13 * 1. Redistributions of source code must retain the above copyright
14 *    notice, this list of conditions and the following disclaimer.
15 * 2. Redistributions in binary form must reproduce the above copyright
16 *    notice, this list of conditions and the following disclaimer in the
17 *    documentation and/or other materials provided with the distribution.
18 *
19 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
20 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
21 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
22 * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
23 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
24 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
25 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
26 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
27 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
28 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
29 * POSSIBILITY OF SUCH DAMAGE.
30 */
31
32#include "atomic_op_asm.h"
33
34ENTRY_NP(_atomic_xor_32)
35	amoxor.w.aq	a0, a1, 0(a0)
36	ret
37END(_atomic_xor_32)
38
39ATOMIC_OP_ALIAS(atomic_xor_32,_atomic_xor_32)
40ATOMIC_OP_ALIAS(atomic_xor_uint,_atomic_xor_32)
41STRONG_ALIAS(_atomic_xor_uint,_atomic_xor_32)
42#ifndef _LP64
43ATOMIC_OP_ALIAS(atomic_xor_ulong,_atomic_xor_32)
44STRONG_ALIAS(_atomic_xor_ulong,_atomic_xor_32)
45#endif
46CRT_ALIAS(__sync_fetch_and_xor_4,_atomic_xor_32)
47CRT_ALIAS(__atomic_fetch_xor_4,_atomic_xor_32)
48
49ENTRY_NP(_atomic_xor_32_nv)
50	amoxor.w.aq	t0, a1, 0(a0)	/* update memory and get old value */
51	xor		a0, t0, a1	/* turn into new value */
52	ret
53END(_atomic_xor_32_nv)
54
55ATOMIC_OP_ALIAS(atomic_xor_32_nv,_atomic_xor_32_nv)
56ATOMIC_OP_ALIAS(atomic_xor_uint_nv,_atomic_xor_32_nv)
57STRONG_ALIAS(_atomic_xor_uint_nv,_atomic_xor_32_nv)
58#ifndef _LP64
59ATOMIC_OP_ALIAS(atomic_xor_ulong_nv,_atomic_xor_32_nv)
60STRONG_ALIAS(_atomic_xor_ulong_nv,_atomic_xor_32_nv)
61#endif
62CRT_ALIAS(__sync_xor_and_fetch_4,_atomic_xor_32_nv)
63CRT_ALIAS(__atomic_xor_fetch_4,_atomic_xor_32_nv)
64