1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
|
/* The common simulator framework for GDB, the GNU Debugger.
Copyright 2002-2024 Free Software Foundation, Inc.
Contributed by Andrew Cagney and Red Hat.
This file is part of GDB.
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>. */
#ifndef _SIM_ENDIAN_C_
#define _SIM_ENDIAN_C_
/* This must come before any other includes. */
#include "defs.h"
#include "bfd.h"
#include "sim-basics.h"
#include "sim-assert.h"
#if !defined(_SWAP_1)
#define _SWAP_1(SET,RAW) SET (RAW)
#endif
#if !defined(_SWAP_2) && (HOST_BYTE_ORDER == BFD_ENDIAN_LITTLE) && defined(htons)
#define _SWAP_2(SET,RAW) SET htons (RAW)
#endif
#ifndef _SWAP_2
#define _SWAP_2(SET,RAW) SET (((RAW) >> 8) | ((RAW) << 8))
#endif
#if !defined(_SWAP_4) && (HOST_BYTE_ORDER == BFD_ENDIAN_LITTLE) && defined(htonl)
#define _SWAP_4(SET,RAW) SET htonl (RAW)
#endif
#ifndef _SWAP_4
#define _SWAP_4(SET,RAW) SET (((RAW) << 24) | (((RAW) & 0xff00) << 8) | (((RAW) & 0xff0000) >> 8) | ((RAW) >> 24))
#endif
#ifndef _SWAP_8
#define _SWAP_8(SET,RAW) \
union { unsigned_8 dword; unsigned_4 words[2]; } in, out; \
in.dword = RAW; \
_SWAP_4 (out.words[0] =, in.words[1]); \
_SWAP_4 (out.words[1] =, in.words[0]); \
SET out.dword;
#endif
#ifndef _SWAP_16
#define _SWAP_16(SET,RAW) \
union { unsigned_16 word; unsigned_4 words[4]; } in, out; \
in.word = (RAW); \
_SWAP_4 (out.words[0] =, in.words[3]); \
_SWAP_4 (out.words[1] =, in.words[2]); \
_SWAP_4 (out.words[2] =, in.words[1]); \
_SWAP_4 (out.words[3] =, in.words[0]); \
SET out.word;
#endif
#define N 1
#include "sim-n-endian.h"
#undef N
#define N 2
#include "sim-n-endian.h"
#undef N
#define N 4
#include "sim-n-endian.h"
#undef N
#define N 8
#include "sim-n-endian.h"
#undef N
#define N 16
#include "sim-n-endian.h"
#undef N
INLINE_SIM_ENDIAN\
(unsigned_8)
sim_endian_split_16 (unsigned_16 word, int w)
{
if (HOST_BYTE_ORDER == BFD_ENDIAN_LITTLE)
{
return word.a[1 - w];
}
else
{
return word.a[w];
}
}
INLINE_SIM_ENDIAN\
(unsigned_16)
sim_endian_join_16 (unsigned_8 h, unsigned_8 l)
{
unsigned_16 word;
if (HOST_BYTE_ORDER == BFD_ENDIAN_LITTLE)
{
word.a[0] = l;
word.a[1] = h;
}
else
{
word.a[0] = h;
word.a[1] = l;
}
return word;
}
#endif /* _SIM_ENDIAN_C_ */
|
