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[/] [or1k/] [tags/] [start/] [gdb-5.0/] [sim/] [common/] [sim-endian.c] - Blame information for rev 1765

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/*  This file is part of the program psim.
 
    Copyright (C) 1994-1995, Andrew Cagney <cagney@highland.com.au>
 
    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 2 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, write to the Free Software
    Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
 
    */
 
 
#ifndef _SIM_ENDIAN_C_
#define _SIM_ENDIAN_C_
 
#include "sim-basics.h"
#include "sim-assert.h"
#include "sim-io.h"
 
 
#if !defined(_SWAP_1)
#define _SWAP_1(SET,RAW) SET (RAW)
#endif
 
#if !defined(_SWAP_2) && (WITH_HOST_BYTE_ORDER == LITTLE_ENDIAN) && 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) && (WITH_HOST_BYTE_ORDER == LITTLE_ENDIAN) && 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 (CURRENT_HOST_BYTE_ORDER == LITTLE_ENDIAN)
    {
      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 (CURRENT_HOST_BYTE_ORDER == LITTLE_ENDIAN)
    {
      word.a[0] = l;
      word.a[1] = h;
    }
  else
    {
      word.a[0] = h;
      word.a[1] = l;
    }
  return word;
}
 
 
 
#endif /* _SIM_ENDIAN_C_ */

Line No.	Rev	Author	Line
1	106	markom	`/* 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"`
26			`#include "sim-assert.h"`
27			`#include "sim-io.h"`
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
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
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
87			`#define N 16`
88			`#include "sim-n-endian.h"`
89			`#undef N`
90
91
92			`INLINE_SIM_ENDIAN\`
93			`(unsigned_8)`
94			`sim_endian_split_16 (unsigned_16 word, int w)`
95			`{`
96			`if (CURRENT_HOST_BYTE_ORDER == LITTLE_ENDIAN)`
97			`{`
98			`return word.a[1 - w];`
99			`}`
100			`else`
101			`{`
102			`return word.a[w];`
103			`}`
104			`}`
105
106
107			`INLINE_SIM_ENDIAN\`
108			`(unsigned_16)`
109			`sim_endian_join_16 (unsigned_8 h, unsigned_8 l)`
110
111			`{`
112			`unsigned_16 word;`
113			`if (CURRENT_HOST_BYTE_ORDER == LITTLE_ENDIAN)`
114			`{`
115			`word.a[0] = l;`
116			`word.a[1] = h;`
117			`}`
118			`else`
119			`{`
120			`word.a[0] = h;`
121			`word.a[1] = l;`
122			`}`
123			`return word;`
124			`}`
125
126
127
128			`#endif /* _SIM_ENDIAN_C_ */`

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[/] [or1k/] [tags/] [start/] [gdb-5.0/] [sim/] [common/] [sim-endian.c] - Blame information for rev 1765