RTEMS 6.1-rc7
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access.h
1/* SPDX-License-Identifier: BSD-2-Clause */
2
3/*
4 * access.h - access routines for SPARC. SPARC is big endian only.
5 *
6 * COPYRIGHT (c) 2011
7 * Aeroflex Gaisler.
8 *
9 * Redistribution and use in source and binary forms, with or without
10 * modification, are permitted provided that the following conditions
11 * are met:
12 * 1. Redistributions of source code must retain the above copyright
13 * notice, this list of conditions and the following disclaimer.
14 * 2. Redistributions in binary form must reproduce the above copyright
15 * notice, this list of conditions and the following disclaimer in the
16 * documentation and/or other materials provided with the distribution.
17 *
18 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
19 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
20 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
21 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
22 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
23 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
24 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
25 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
26 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
27 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
28 * POSSIBILITY OF SUCH DAMAGE.
29 */
30
31#ifndef _LIBCPU_ACCESS_H
32#define _LIBCPU_ACCESS_H
33
34#include <rtems/score/cpu.h>
35
36#ifdef __cplusplus
37extern "C" {
38#endif
39
40/* "Raw" access */
41extern uint8_t _ld8(uint8_t *addr);
42extern void _st8(uint8_t *addr, uint8_t val);
43extern uint16_t _ld16(uint16_t *addr);
44extern void _st16(uint16_t *addr, uint16_t val);
45extern uint32_t _ld32(uint32_t *addr);
46extern void _st32(uint32_t *addr, uint32_t val);
47extern uint64_t _ld64(uint64_t *addr);
48extern void _st64(uint64_t *addr, uint64_t val);
49
50/* Aliases for Big Endian */
51extern uint16_t _ld_be16(uint16_t *addr);
52extern void _st_be16(uint16_t *addr, uint16_t val);
53extern uint32_t _ld_be32(uint32_t *addr);
54extern void _st_be32(uint32_t *addr, uint32_t val);
55extern uint64_t _ld_be64(uint64_t *addr);
56extern void _st_be64(uint64_t *addr, uint64_t val);
57
58/* Little endian */
59extern uint16_t _ld_le16(uint16_t *addr);
60extern void _st_le16(uint16_t *addr, uint16_t val);
61extern uint32_t _ld_le32(uint32_t *addr);
62extern void _st_le32(uint32_t *addr, uint32_t val);
63
64#ifdef __cplusplus
65}
66#endif
67
68#endif