Do top level sim-hw module for device tree.
[deliverable/binutils-gdb.git] / sim / common / sim-endian.c
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1/* This file is part of the program psim.
2
3 Copyright (C) 1994-1995, Andrew Cagney <cagney@highland.com.au>
4
5 This program is free software; you can redistribute it and/or modify
6 it under the terms of the GNU General Public License as published by
7 the Free Software Foundation; either version 2 of the License, or
8 (at your option) any later version.
9
10 This program is distributed in the hope that it will be useful,
11 but WITHOUT ANY WARRANTY; without even the implied warranty of
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 GNU General Public License for more details.
14
15 You should have received a copy of the GNU General Public License
16 along with this program; if not, write to the Free Software
17 Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
18
19 */
20
21
22#ifndef _SIM_ENDIAN_C_
23#define _SIM_ENDIAN_C_
24
25#include "sim-basics.h"
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26#include "sim-assert.h"
27#include "sim-io.h"
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28
29
30#if !defined(_SWAP_1)
31#define _SWAP_1(SET,RAW) SET (RAW)
32#endif
33
34#if !defined(_SWAP_2) && (WITH_HOST_BYTE_ORDER == LITTLE_ENDIAN) && defined(htons)
35#define _SWAP_2(SET,RAW) SET htons (RAW)
36#endif
37
38#ifndef _SWAP_2
39#define _SWAP_2(SET,RAW) SET (((RAW) >> 8) | ((RAW) << 8))
40#endif
41
42#if !defined(_SWAP_4) && (WITH_HOST_BYTE_ORDER == LITTLE_ENDIAN) && defined(htonl)
43#define _SWAP_4(SET,RAW) SET htonl (RAW)
44#endif
45
46#ifndef _SWAP_4
47#define _SWAP_4(SET,RAW) SET (((RAW) << 24) | (((RAW) & 0xff00) << 8) | (((RAW) & 0xff0000) >> 8) | ((RAW) >> 24))
48#endif
49
50#ifndef _SWAP_8
51#define _SWAP_8(SET,RAW) \
52 union { unsigned_8 dword; unsigned_4 words[2]; } in, out; \
53 in.dword = RAW; \
54 _SWAP_4 (out.words[0] =, in.words[1]); \
55 _SWAP_4 (out.words[1] =, in.words[0]); \
56 SET out.dword;
57#endif
58
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59#ifndef _SWAP_16
60#define _SWAP_16(SET,RAW) \
61 union { unsigned_16 word; unsigned_4 words[4]; } in, out; \
62 in.word = (RAW); \
63 _SWAP_4 (out.words[0] =, in.words[3]); \
64 _SWAP_4 (out.words[1] =, in.words[2]); \
65 _SWAP_4 (out.words[2] =, in.words[1]); \
66 _SWAP_4 (out.words[3] =, in.words[0]); \
67 SET out.word;
68#endif
69
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70
71#define N 1
72#include "sim-n-endian.h"
73#undef N
74
75#define N 2
76#include "sim-n-endian.h"
77#undef N
78
79#define N 4
80#include "sim-n-endian.h"
81#undef N
82
83#define N 8
84#include "sim-n-endian.h"
85#undef N
86
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87#define N 16
88#include "sim-n-endian.h"
89#undef N
90
f2de7dfd 91#endif /* _SIM_ENDIAN_C_ */
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