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[/] [openrisc/] [trunk/] [gnu-stable/] [gdb-7.2/] [sim/] [common/] [sim-endian.h] - Blame information for rev 330

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1 330 jeremybenn
/* The common simulator framework for GDB, the GNU Debugger.
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3
   Copyright 2002, 2007, 2008, 2009, 2010 Free Software Foundation, Inc.
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5
   Contributed by Andrew Cagney and Red Hat.
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7
   This file is part of GDB.
8
 
9
   This program is free software; you can redistribute it and/or modify
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   it under the terms of the GNU General Public License as published by
11
   the Free Software Foundation; either version 3 of the License, or
12
   (at your option) any later version.
13
 
14
   This program is distributed in the hope that it will be useful,
15
   but WITHOUT ANY WARRANTY; without even the implied warranty of
16
   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
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   GNU General Public License for more details.
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19
   You should have received a copy of the GNU General Public License
20
   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
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22
 
23
#ifndef _SIM_ENDIAN_H_
24
#define _SIM_ENDIAN_H_
25
 
26
 
27
/* C byte conversion functions */
28
 
29
INLINE_SIM_ENDIAN(unsigned_1) endian_h2t_1(unsigned_1 x);
30
INLINE_SIM_ENDIAN(unsigned_2) endian_h2t_2(unsigned_2 x);
31
INLINE_SIM_ENDIAN(unsigned_4) endian_h2t_4(unsigned_4 x);
32
INLINE_SIM_ENDIAN(unsigned_8) endian_h2t_8(unsigned_8 x);
33
INLINE_SIM_ENDIAN(unsigned_16) endian_h2t_16(unsigned_16 x);
34
 
35
INLINE_SIM_ENDIAN(unsigned_1) endian_t2h_1(unsigned_1 x);
36
INLINE_SIM_ENDIAN(unsigned_2) endian_t2h_2(unsigned_2 x);
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INLINE_SIM_ENDIAN(unsigned_4) endian_t2h_4(unsigned_4 x);
38
INLINE_SIM_ENDIAN(unsigned_8) endian_t2h_8(unsigned_8 x);
39
INLINE_SIM_ENDIAN(unsigned_16) endian_t2h_16(unsigned_16 x);
40
 
41
INLINE_SIM_ENDIAN(unsigned_1) swap_1(unsigned_1 x);
42
INLINE_SIM_ENDIAN(unsigned_2) swap_2(unsigned_2 x);
43
INLINE_SIM_ENDIAN(unsigned_4) swap_4(unsigned_4 x);
44
INLINE_SIM_ENDIAN(unsigned_8) swap_8(unsigned_8 x);
45
INLINE_SIM_ENDIAN(unsigned_16) swap_16(unsigned_16 x);
46
 
47
INLINE_SIM_ENDIAN(unsigned_1) endian_h2be_1(unsigned_1 x);
48
INLINE_SIM_ENDIAN(unsigned_2) endian_h2be_2(unsigned_2 x);
49
INLINE_SIM_ENDIAN(unsigned_4) endian_h2be_4(unsigned_4 x);
50
INLINE_SIM_ENDIAN(unsigned_8) endian_h2be_8(unsigned_8 x);
51
INLINE_SIM_ENDIAN(unsigned_16) endian_h2be_16(unsigned_16 x);
52
 
53
INLINE_SIM_ENDIAN(unsigned_1) endian_be2h_1(unsigned_1 x);
54
INLINE_SIM_ENDIAN(unsigned_2) endian_be2h_2(unsigned_2 x);
55
INLINE_SIM_ENDIAN(unsigned_4) endian_be2h_4(unsigned_4 x);
56
INLINE_SIM_ENDIAN(unsigned_8) endian_be2h_8(unsigned_8 x);
57
INLINE_SIM_ENDIAN(unsigned_16) endian_be2h_16(unsigned_16 x);
58
 
59
INLINE_SIM_ENDIAN(unsigned_1) endian_h2le_1(unsigned_1 x);
60
INLINE_SIM_ENDIAN(unsigned_2) endian_h2le_2(unsigned_2 x);
61
INLINE_SIM_ENDIAN(unsigned_4) endian_h2le_4(unsigned_4 x);
62
INLINE_SIM_ENDIAN(unsigned_8) endian_h2le_8(unsigned_8 x);
63
INLINE_SIM_ENDIAN(unsigned_16) endian_h2le_16(unsigned_16 x);
64
 
65
INLINE_SIM_ENDIAN(unsigned_1) endian_le2h_1(unsigned_1 x);
66
INLINE_SIM_ENDIAN(unsigned_2) endian_le2h_2(unsigned_2 x);
67
INLINE_SIM_ENDIAN(unsigned_4) endian_le2h_4(unsigned_4 x);
68
INLINE_SIM_ENDIAN(unsigned_8) endian_le2h_8(unsigned_8 x);
69
INLINE_SIM_ENDIAN(unsigned_16) endian_le2h_16(unsigned_16 x);
70
 
71
INLINE_SIM_ENDIAN(void*) offset_1(unsigned_1 *x, unsigned ws, unsigned w);
72
INLINE_SIM_ENDIAN(void*) offset_2(unsigned_2 *x, unsigned ws, unsigned w);
73
INLINE_SIM_ENDIAN(void*) offset_4(unsigned_4 *x, unsigned ws, unsigned w);
74
INLINE_SIM_ENDIAN(void*) offset_8(unsigned_8 *x, unsigned ws, unsigned w);
75
INLINE_SIM_ENDIAN(void*) offset_16(unsigned_16 *x, unsigned ws, unsigned w);
76
 
77
INLINE_SIM_ENDIAN(unsigned_16) sim_endian_join_16 (unsigned_8 h, unsigned_8 l);
78
INLINE_SIM_ENDIAN(unsigned_8) sim_endian_split_16 (unsigned_16 word, int w);
79
 
80
 
81
/* SWAP */
82
 
83
#define SWAP_1 swap_1
84
#define SWAP_2 swap_2
85
#define SWAP_4 swap_4
86
#define SWAP_8 swap_8
87
#define SWAP_16 swap_16
88
 
89
 
90
/* HOST to BE */
91
 
92
#define H2BE_1 endian_h2be_1
93
#define H2BE_2 endian_h2be_2
94
#define H2BE_4 endian_h2be_4
95
#define H2BE_8 endian_h2be_8
96
#define H2BE_16 endian_h2be_16
97
#define BE2H_1 endian_be2h_1
98
#define BE2H_2 endian_be2h_2
99
#define BE2H_4 endian_be2h_4
100
#define BE2H_8 endian_be2h_8
101
#define BE2H_16 endian_be2h_16
102
 
103
 
104
/* HOST to LE */
105
 
106
#define H2LE_1 endian_h2le_1
107
#define H2LE_2 endian_h2le_2
108
#define H2LE_4 endian_h2le_4
109
#define H2LE_8 endian_h2le_8
110
#define H2LE_16 endian_h2le_16
111
#define LE2H_1 endian_le2h_1
112
#define LE2H_2 endian_le2h_2
113
#define LE2H_4 endian_le2h_4
114
#define LE2H_8 endian_le2h_8
115
#define LE2H_16 endian_le2h_16
116
 
117
 
118
/* HOST to TARGET */
119
 
120
#define H2T_1 endian_h2t_1
121
#define H2T_2 endian_h2t_2
122
#define H2T_4 endian_h2t_4
123
#define H2T_8 endian_h2t_8
124
#define H2T_16 endian_h2t_16
125
#define T2H_1 endian_t2h_1
126
#define T2H_2 endian_t2h_2
127
#define T2H_4 endian_t2h_4
128
#define T2H_8 endian_t2h_8
129
#define T2H_16 endian_t2h_16
130
 
131
 
132
/* CONVERT IN PLACE
133
 
134
   These macros, given an argument of unknown size, swap its value in
135
   place if a host/target conversion is required. */
136
 
137
#define H2T(VARIABLE) \
138
do { \
139
  void *vp = &(VARIABLE); \
140
  switch (sizeof (VARIABLE)) { \
141
  case 1: *(unsigned_1*)vp = H2T_1(*(unsigned_1*)vp); break; \
142
  case 2: *(unsigned_2*)vp = H2T_2(*(unsigned_2*)vp); break; \
143
  case 4: *(unsigned_4*)vp = H2T_4(*(unsigned_4*)vp); break; \
144
  case 8: *(unsigned_8*)vp = H2T_8(*(unsigned_8*)vp); break; \
145
  case 16: *(unsigned_16*)vp = H2T_16(*(unsigned_16*)vp); break; \
146
  } \
147
} while (0)
148
 
149
#define T2H(VARIABLE) \
150
do { \
151
  switch (sizeof(VARIABLE)) { \
152
  case 1: VARIABLE = T2H_1(VARIABLE); break; \
153
  case 2: VARIABLE = T2H_2(VARIABLE); break; \
154
  case 4: VARIABLE = T2H_4(VARIABLE); break; \
155
  case 8: VARIABLE = T2H_8(VARIABLE); break; \
156
  /*case 16: VARIABLE = T2H_16(VARIABLE); break;*/ \
157
  } \
158
} while (0)
159
 
160
#define SWAP(VARIABLE) \
161
do { \
162
  switch (sizeof(VARIABLE)) { \
163
  case 1: VARIABLE = SWAP_1(VARIABLE); break; \
164
  case 2: VARIABLE = SWAP_2(VARIABLE); break; \
165
  case 4: VARIABLE = SWAP_4(VARIABLE); break; \
166
  case 8: VARIABLE = SWAP_8(VARIABLE); break; \
167
  /*case 16: VARIABLE = SWAP_16(VARIABLE); break;*/ \
168
  } \
169
} while (0)
170
 
171
#define H2BE(VARIABLE) \
172
do { \
173
  switch (sizeof(VARIABLE)) { \
174
  case 1: VARIABLE = H2BE_1(VARIABLE); break; \
175
  case 2: VARIABLE = H2BE_2(VARIABLE); break; \
176
  case 4: VARIABLE = H2BE_4(VARIABLE); break; \
177
  case 8: VARIABLE = H2BE_8(VARIABLE); break; \
178
  /*case 16: VARIABLE = H2BE_16(VARIABLE); break;*/ \
179
  } \
180
} while (0)
181
 
182
#define BE2H(VARIABLE) \
183
do { \
184
  switch (sizeof(VARIABLE)) { \
185
  case 1: VARIABLE = BE2H_1(VARIABLE); break; \
186
  case 2: VARIABLE = BE2H_2(VARIABLE); break; \
187
  case 4: VARIABLE = BE2H_4(VARIABLE); break; \
188
  case 8: VARIABLE = BE2H_8(VARIABLE); break; \
189
  /*case 16: VARIABLE = BE2H_16(VARIABLE); break;*/ \
190
  } \
191
} while (0)
192
 
193
#define H2LE(VARIABLE) \
194
do { \
195
  switch (sizeof(VARIABLE)) { \
196
  case 1: VARIABLE = H2LE_1(VARIABLE); break; \
197
  case 2: VARIABLE = H2LE_2(VARIABLE); break; \
198
  case 4: VARIABLE = H2LE_4(VARIABLE); break; \
199
  case 8: VARIABLE = H2LE_8(VARIABLE); break; \
200
  /*case 16: VARIABLE = H2LE_16(VARIABLE); break;*/ \
201
  } \
202
} while (0)
203
 
204
#define LE2H(VARIABLE) \
205
do { \
206
  switch (sizeof(VARIABLE)) { \
207
  case 1: VARIABLE = LE2H_1(VARIABLE); break; \
208
  case 2: VARIABLE = LE2H_2(VARIABLE); break; \
209
  case 4: VARIABLE = LE2H_4(VARIABLE); break; \
210
  case 8: VARIABLE = LE2H_8(VARIABLE); break; \
211
  /*case 16: VARIABLE = LE2H_16(VARIABLE); break;*/ \
212
  } \
213
} while (0)
214
 
215
 
216
 
217
/* TARGET WORD:
218
 
219
   Byte swap a quantity the size of the targets word */
220
 
221
#if (WITH_TARGET_WORD_BITSIZE == 64)
222
#define H2T_word H2T_8
223
#define T2H_word T2H_8
224
#define H2BE_word H2BE_8
225
#define BE2H_word BE2H_8
226
#define H2LE_word H2LE_8
227
#define LE2H_word LE2H_8
228
#define SWAP_word SWAP_8
229
#endif
230
#if (WITH_TARGET_WORD_BITSIZE == 32)
231
#define H2T_word H2T_4
232
#define T2H_word T2H_4
233
#define H2BE_word H2BE_4
234
#define BE2H_word BE2H_4
235
#define H2LE_word H2LE_4
236
#define LE2H_word LE2H_4
237
#define SWAP_word SWAP_4
238
#endif
239
 
240
 
241
 
242
/* TARGET CELL:
243
 
244
   Byte swap a quantity the size of the targets IEEE 1275 memory cell */
245
 
246
#define H2T_cell H2T_4
247
#define T2H_cell T2H_4
248
#define H2BE_cell H2BE_4
249
#define BE2H_cell BE2H_4
250
#define H2LE_cell H2LE_4
251
#define LE2H_cell LE2H_4
252
#define SWAP_cell SWAP_4
253
 
254
 
255
 
256
/* HOST Offsets:
257
 
258
   Address of high/low sub-word within a host word quantity.
259
 
260
   Address of sub-word N within a host word quantity.  NOTE: Numbering
261
   is BIG endian always. */
262
 
263
#define AH1_2(X) (unsigned_1*)offset_2((X), 1, 0)
264
#define AL1_2(X) (unsigned_1*)offset_2((X), 1, 1)
265
 
266
#define AH2_4(X) (unsigned_2*)offset_4((X), 2, 0)
267
#define AL2_4(X) (unsigned_2*)offset_4((X), 2, 1)
268
 
269
#define AH4_8(X) (unsigned_4*)offset_8((X), 4, 0)
270
#define AL4_8(X) (unsigned_4*)offset_8((X), 4, 1)
271
 
272
#define AH8_16(X) (unsigned_8*)offset_16((X), 8, 0)
273
#define AL8_16(X) (unsigned_8*)offset_16((X), 8, 1)
274
 
275
#if (WITH_TARGET_WORD_BITSIZE == 64)
276
#define AH_word(X) AH4_8(X)
277
#define AL_word(X) AL4_8(X)
278
#endif
279
#if (WITH_TARGET_WORD_BITSIZE == 32)
280
#define AH_word(X) AH2_4(X)
281
#define AL_word(X) AL2_4(X)
282
#endif
283
 
284
 
285
#define A1_2(X,N) (unsigned_1*)offset_2((X), 1, (N))
286
 
287
#define A1_4(X,N) (unsigned_1*)offset_4((X), 1, (N))
288
#define A2_4(X,N) (unsigned_2*)offset_4((X), 2, (N))
289
 
290
#define A1_8(X,N) (unsigned_1*)offset_8((X), 1, (N))
291
#define A2_8(X,N) (unsigned_2*)offset_8((X), 2, (N))
292
#define A4_8(X,N) (unsigned_4*)offset_8((X), 4, (N))
293
 
294
#define A1_16(X,N) (unsigned_1*)offset_16((X), 1, (N))
295
#define A2_16(X,N) (unsigned_2*)offset_16((X), 2, (N))
296
#define A4_16(X,N) (unsigned_4*)offset_16((X), 4, (N))
297
#define A8_16(X,N) (unsigned_8*)offset_16((X), 8, (N))
298
 
299
 
300
 
301
 
302
/* HOST Components:
303
 
304
   Value of sub-word within a host word quantity */
305
 
306
#define VH1_2(X) ((unsigned_1)((unsigned_2)(X) >> 8))
307
#define VL1_2(X) (unsigned_1)(X)
308
 
309
#define VH2_4(X) ((unsigned_2)((unsigned_4)(X) >> 16))
310
#define VL2_4(X) ((unsigned_2)(X))
311
 
312
#define VH4_8(X) ((unsigned_4)((unsigned_8)(X) >> 32))
313
#define VL4_8(X) ((unsigned_4)(X))
314
 
315
#define VH8_16(X) (sim_endian_split_16 ((X), 0))
316
#define VL8_16(X) (sim_endian_split_16 ((X), 1))
317
 
318
#if (WITH_TARGET_WORD_BITSIZE == 64)
319
#define VH_word(X) VH4_8(X)
320
#define VL_word(X) VL4_8(X)
321
#endif
322
#if (WITH_TARGET_WORD_BITSIZE == 32)
323
#define VH_word(X) VH2_4(X)
324
#define VL_word(X) VL2_4(X)
325
#endif
326
 
327
 
328
#define V1_2(X,N) ((unsigned_1)((unsigned_2)(X) >> ( 8 * (1 - (N)))))
329
 
330
#define V1_4(X,N) ((unsigned_1)((unsigned_4)(X) >> ( 8 * (3 - (N)))))
331
#define V2_4(X,N) ((unsigned_2)((unsigned_4)(X) >> (16 * (1 - (N)))))
332
 
333
#define V1_8(X,N) ((unsigned_1)((unsigned_8)(X) >> ( 8 * (7 - (N)))))
334
#define V2_8(X,N) ((unsigned_2)((unsigned_8)(X) >> (16 * (3 - (N)))))
335
#define V4_8(X,N) ((unsigned_4)((unsigned_8)(X) >> (32 * (1 - (N)))))
336
 
337
#define V1_16(X,N) (*A1_16 (&(X),N))
338
#define V2_16(X,N) (*A2_16 (&(X),N))
339
#define V4_16(X,N) (*A4_16 (&(X),N))
340
#define V8_16(X,N) (*A8_16 (&(X),N))
341
 
342
 
343
/* Reverse - insert sub-word into word quantity */
344
 
345
#define V2_H1(X) ((unsigned_2)(unsigned_1)(X) <<  8)
346
#define V2_L1(X) ((unsigned_2)(unsigned_1)(X))
347
 
348
#define V4_H2(X) ((unsigned_4)(unsigned_2)(X) << 16)
349
#define V4_L2(X) ((unsigned_4)(unsigned_2)(X))
350
 
351
#define V8_H4(X) ((unsigned_8)(unsigned_4)(X) << 32)
352
#define V8_L4(X) ((unsigned_8)(unsigned_4)(X))
353
 
354
#define V16_H8(X) ((unsigned_16)(unsigned_8)(X) << 64)
355
#define V16_L8(X) ((unsigned_16)(unsigned_8)(X))
356
 
357
 
358
#define V2_1(X,N) ((unsigned_2)(unsigned_1)(X) << ( 8 * (1 - (N))))
359
 
360
#define V4_1(X,N) ((unsigned_4)(unsigned_1)(X) << ( 8 * (3 - (N))))
361
#define V4_2(X,N) ((unsigned_4)(unsigned_2)(X) << (16 * (1 - (N))))
362
 
363
#define V8_1(X,N) ((unsigned_8)(unsigned_1)(X) << ( 8 * (7 - (N))))
364
#define V8_2(X,N) ((unsigned_8)(unsigned_2)(X) << (16 * (3 - (N))))
365
#define V8_4(X,N) ((unsigned_8)(unsigned_4)(X) << (32 * (1 - (N))))
366
 
367
#define V16_1(X,N) ((unsigned_16)(unsigned_1)(X) << ( 8 * (15 - (N))))
368
#define V16_2(X,N) ((unsigned_16)(unsigned_2)(X) << (16 * (7 - (N))))
369
#define V16_4(X,N) ((unsigned_16)(unsigned_4)(X) << (32 * (3 - (N))))
370
#define V16_8(X,N) ((unsigned_16)(unsigned_8)(X) << (64 * (1 - (N))))
371
 
372
 
373
/* Reverse - insert N sub-words into single word quantity */
374
 
375
#define U2_1(I0,I1) (V2_1(I0,0) | V2_1(I1,1))
376
#define U4_1(I0,I1,I2,I3) (V4_1(I0,0) | V4_1(I1,1) | V4_1(I2,2) | V4_1(I3,3))
377
#define U8_1(I0,I1,I2,I3,I4,I5,I6,I7) \
378
(V8_1(I0,0) | V8_1(I1,1) | V8_1(I2,2) | V8_1(I3,3) \
379
 | V8_1(I4,4) | V8_1(I5,5) | V8_1(I6,6) | V8_1(I7,7))
380
#define U16_1(I0,I1,I2,I3,I4,I5,I6,I7,I8,I9,I10,I11,I12,I13,I14,I15) \
381
(V16_1(I0,0) | V16_1(I1,1) | V16_1(I2,2) | V16_1(I3,3) \
382
 | V16_1(I4,4) | V16_1(I5,5) | V16_1(I6,6) | V16_1(I7,7) \
383
 | V16_1(I8,8) | V16_1(I9,9) | V16_1(I10,10) | V16_1(I11,11) \
384
 | V16_1(I12,12) | V16_1(I13,13) | V16_1(I14,14) | V16_1(I15,15))
385
 
386
#define U4_2(I0,I1) (V4_2(I0,0) | V4_2(I1,1))
387
#define U8_2(I0,I1,I2,I3) (V8_2(I0,0) | V8_2(I1,1) | V8_2(I2,2) | V8_2(I3,3))
388
#define U16_2(I0,I1,I2,I3,I4,I5,I6,I7) \
389
(V16_2(I0,0) | V16_2(I1,1) | V16_2(I2,2) | V16_2(I3,3) \
390
 | V16_2(I4,4) | V16_2(I5,5) | V16_2(I6,6) | V16_2(I7,7) )
391
 
392
#define U8_4(I0,I1) (V8_4(I0,0) | V8_4(I1,1))
393
#define U16_4(I0,I1,I2,I3) (V16_4(I0,0) | V16_4(I1,1) | V16_4(I2,2) | V16_4(I3,3))
394
 
395
#define U16_8(I0,I1) (sim_endian_join_16 (I0, I1))
396
 
397
 
398
#if (WITH_TARGET_WORD_BITSIZE == 64)
399
#define Vword_H(X) V8_H4(X)
400
#define Vword_L(X) V8_L4(X)
401
#endif
402
#if (WITH_TARGET_WORD_BITSIZE == 32)
403
#define Vword_H(X) V4_H2(X)
404
#define Vword_L(X) V4_L2(X)
405
#endif
406
 
407
 
408
 
409
 
410
#if H_REVEALS_MODULE_P (SIM_ENDIAN_INLINE)
411
#include "sim-endian.c"
412
#endif
413
 
414
#endif /* _SIM_ENDIAN_H_ */

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