RTEMS 7.0-rc1
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byteorder.h
1/* SPDX-License-Identifier: BSD-2-Clause */
2
3/*
4 * Copyright (C) 2019 Jiri Gaisler <jiri@gaisler.se>
5 *
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions
8 * are met:
9 * 1. Redistributions of source code must retain the above copyright
10 * notice, this list of conditions and the following disclaimer.
11 * 2. Redistributions in binary form must reproduce the above copyright
12 * notice, this list of conditions and the following disclaimer in the
13 * documentation and/or other materials provided with the distribution.
14 *
15 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
16 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
17 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
18 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
19 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
20 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
21 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
22 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
23 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
24 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
25 * POSSIBILITY OF SUCH DAMAGE.
26 */
27
28#ifndef _LIBCPU_BYTEORDER_H
29#define _LIBCPU_BYTEORDER_H
30
31#include <stdint.h>
32
33static inline void st_le32(volatile uint32_t *addr, uint32_t value)
34{
35 *(addr)=value ;
36}
37
38static inline uint32_t ld_le32(volatile uint32_t *addr)
39{
40 return(*addr);
41}
42
43static inline void st_le16(volatile uint16_t *addr, uint16_t value)
44{
45 *(addr)=value ;
46}
47
48static inline uint16_t ld_le16(volatile uint16_t *addr)
49{
50 return(*addr);
51}
52
53
54#endif