aboutsummaryrefslogtreecommitdiff
path: root/sim/common/sim-endian.h
blob: 589169ea11cf217354a0e6452436c86817d8dceb (plain)
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
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
/* The common simulator framework for GDB, the GNU Debugger.

   Copyright 2002-2023 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_H
#define SIM_ENDIAN_H

/* C byte conversion functions */

INLINE_SIM_ENDIAN(unsigned_1) endian_h2t_1(unsigned_1 x);
INLINE_SIM_ENDIAN(unsigned_2) endian_h2t_2(unsigned_2 x);
INLINE_SIM_ENDIAN(unsigned_4) endian_h2t_4(unsigned_4 x);
INLINE_SIM_ENDIAN(unsigned_8) endian_h2t_8(unsigned_8 x);
INLINE_SIM_ENDIAN(unsigned_16) endian_h2t_16(unsigned_16 x);

INLINE_SIM_ENDIAN(unsigned_1) endian_t2h_1(unsigned_1 x);
INLINE_SIM_ENDIAN(unsigned_2) endian_t2h_2(unsigned_2 x);
INLINE_SIM_ENDIAN(unsigned_4) endian_t2h_4(unsigned_4 x);
INLINE_SIM_ENDIAN(unsigned_8) endian_t2h_8(unsigned_8 x);
INLINE_SIM_ENDIAN(unsigned_16) endian_t2h_16(unsigned_16 x);

INLINE_SIM_ENDIAN(unsigned_1) swap_1(unsigned_1 x);
INLINE_SIM_ENDIAN(unsigned_2) swap_2(unsigned_2 x);
INLINE_SIM_ENDIAN(unsigned_4) swap_4(unsigned_4 x);
INLINE_SIM_ENDIAN(unsigned_8) swap_8(unsigned_8 x);
INLINE_SIM_ENDIAN(unsigned_16) swap_16(unsigned_16 x);

INLINE_SIM_ENDIAN(unsigned_1) endian_h2be_1(unsigned_1 x);
INLINE_SIM_ENDIAN(unsigned_2) endian_h2be_2(unsigned_2 x);
INLINE_SIM_ENDIAN(unsigned_4) endian_h2be_4(unsigned_4 x);
INLINE_SIM_ENDIAN(unsigned_8) endian_h2be_8(unsigned_8 x);
INLINE_SIM_ENDIAN(unsigned_16) endian_h2be_16(unsigned_16 x);

INLINE_SIM_ENDIAN(unsigned_1) endian_be2h_1(unsigned_1 x);
INLINE_SIM_ENDIAN(unsigned_2) endian_be2h_2(unsigned_2 x);
INLINE_SIM_ENDIAN(unsigned_4) endian_be2h_4(unsigned_4 x);
INLINE_SIM_ENDIAN(unsigned_8) endian_be2h_8(unsigned_8 x);
INLINE_SIM_ENDIAN(unsigned_16) endian_be2h_16(unsigned_16 x);

INLINE_SIM_ENDIAN(unsigned_1) endian_h2le_1(unsigned_1 x);
INLINE_SIM_ENDIAN(unsigned_2) endian_h2le_2(unsigned_2 x);
INLINE_SIM_ENDIAN(unsigned_4) endian_h2le_4(unsigned_4 x);
INLINE_SIM_ENDIAN(unsigned_8) endian_h2le_8(unsigned_8 x);
INLINE_SIM_ENDIAN(unsigned_16) endian_h2le_16(unsigned_16 x);

INLINE_SIM_ENDIAN(unsigned_1) endian_le2h_1(unsigned_1 x);
INLINE_SIM_ENDIAN(unsigned_2) endian_le2h_2(unsigned_2 x);
INLINE_SIM_ENDIAN(unsigned_4) endian_le2h_4(unsigned_4 x);
INLINE_SIM_ENDIAN(unsigned_8) endian_le2h_8(unsigned_8 x);
INLINE_SIM_ENDIAN(unsigned_16) endian_le2h_16(unsigned_16 x);

INLINE_SIM_ENDIAN(void*) offset_1(unsigned_1 *x, unsigned ws, unsigned w);
INLINE_SIM_ENDIAN(void*) offset_2(unsigned_2 *x, unsigned ws, unsigned w);
INLINE_SIM_ENDIAN(void*) offset_4(unsigned_4 *x, unsigned ws, unsigned w);
INLINE_SIM_ENDIAN(void*) offset_8(unsigned_8 *x, unsigned ws, unsigned w);
INLINE_SIM_ENDIAN(void*) offset_16(unsigned_16 *x, unsigned ws, unsigned w);

INLINE_SIM_ENDIAN(unsigned_16) sim_endian_join_16 (unsigned_8 h, unsigned_8 l);
INLINE_SIM_ENDIAN(unsigned_8) sim_endian_split_16 (unsigned_16 word, int w);


/* SWAP */

#define SWAP_1 swap_1
#define SWAP_2 swap_2
#define SWAP_4 swap_4
#define SWAP_8 swap_8
#define SWAP_16 swap_16


/* HOST to BE */

#define H2BE_1 endian_h2be_1
#define H2BE_2 endian_h2be_2
#define H2BE_4 endian_h2be_4
#define H2BE_8 endian_h2be_8
#define H2BE_16 endian_h2be_16
#define BE2H_1 endian_be2h_1
#define BE2H_2 endian_be2h_2
#define BE2H_4 endian_be2h_4
#define BE2H_8 endian_be2h_8
#define BE2H_16 endian_be2h_16


/* HOST to LE */

#define H2LE_1 endian_h2le_1
#define H2LE_2 endian_h2le_2
#define H2LE_4 endian_h2le_4
#define H2LE_8 endian_h2le_8
#define H2LE_16 endian_h2le_16
#define LE2H_1 endian_le2h_1
#define LE2H_2 endian_le2h_2
#define LE2H_4 endian_le2h_4
#define LE2H_8 endian_le2h_8
#define LE2H_16 endian_le2h_16


/* HOST to TARGET */

#define H2T_1 endian_h2t_1
#define H2T_2 endian_h2t_2
#define H2T_4 endian_h2t_4
#define H2T_8 endian_h2t_8
#define H2T_16 endian_h2t_16
#define T2H_1 endian_t2h_1
#define T2H_2 endian_t2h_2
#define T2H_4 endian_t2h_4
#define T2H_8 endian_t2h_8
#define T2H_16 endian_t2h_16


/* CONVERT IN PLACE

   These macros, given an argument of unknown size, swap its value in
   place if a host/target conversion is required. */

#define H2T(VARIABLE) \
do { \
  void *vp = &(VARIABLE); \
  switch (sizeof (VARIABLE)) { \
  case 1: *(unsigned_1*)vp = H2T_1(*(unsigned_1*)vp); break; \
  case 2: *(unsigned_2*)vp = H2T_2(*(unsigned_2*)vp); break; \
  case 4: *(unsigned_4*)vp = H2T_4(*(unsigned_4*)vp); break; \
  case 8: *(unsigned_8*)vp = H2T_8(*(unsigned_8*)vp); break; \
  case 16: *(unsigned_16*)vp = H2T_16(*(unsigned_16*)vp); break; \
  } \
} while (0)

#define T2H(VARIABLE) \
do { \
  switch (sizeof(VARIABLE)) { \
  case 1: VARIABLE = T2H_1(VARIABLE); break; \
  case 2: VARIABLE = T2H_2(VARIABLE); break; \
  case 4: VARIABLE = T2H_4(VARIABLE); break; \
  case 8: VARIABLE = T2H_8(VARIABLE); break; \
  /*case 16: VARIABLE = T2H_16(VARIABLE); break;*/ \
  } \
} while (0)

#define SWAP(VARIABLE) \
do { \
  switch (sizeof(VARIABLE)) { \
  case 1: VARIABLE = SWAP_1(VARIABLE); break; \
  case 2: VARIABLE = SWAP_2(VARIABLE); break; \
  case 4: VARIABLE = SWAP_4(VARIABLE); break; \
  case 8: VARIABLE = SWAP_8(VARIABLE); break; \
  /*case 16: VARIABLE = SWAP_16(VARIABLE); break;*/ \
  } \
} while (0)

#define H2BE(VARIABLE) \
do { \
  switch (sizeof(VARIABLE)) { \
  case 1: VARIABLE = H2BE_1(VARIABLE); break; \
  case 2: VARIABLE = H2BE_2(VARIABLE); break; \
  case 4: VARIABLE = H2BE_4(VARIABLE); break; \
  case 8: VARIABLE = H2BE_8(VARIABLE); break; \
  /*case 16: VARIABLE = H2BE_16(VARIABLE); break;*/ \
  } \
} while (0)

#define BE2H(VARIABLE) \
do { \
  switch (sizeof(VARIABLE)) { \
  case 1: VARIABLE = BE2H_1(VARIABLE); break; \
  case 2: VARIABLE = BE2H_2(VARIABLE); break; \
  case 4: VARIABLE = BE2H_4(VARIABLE); break; \
  case 8: VARIABLE = BE2H_8(VARIABLE); break; \
  /*case 16: VARIABLE = BE2H_16(VARIABLE); break;*/ \
  } \
} while (0)

#define H2LE(VARIABLE) \
do { \
  switch (sizeof(VARIABLE)) { \
  case 1: VARIABLE = H2LE_1(VARIABLE); break; \
  case 2: VARIABLE = H2LE_2(VARIABLE); break; \
  case 4: VARIABLE = H2LE_4(VARIABLE); break; \
  case 8: VARIABLE = H2LE_8(VARIABLE); break; \
  /*case 16: VARIABLE = H2LE_16(VARIABLE); break;*/ \
  } \
} while (0)

#define LE2H(VARIABLE) \
do { \
  switch (sizeof(VARIABLE)) { \
  case 1: VARIABLE = LE2H_1(VARIABLE); break; \
  case 2: VARIABLE = LE2H_2(VARIABLE); break; \
  case 4: VARIABLE = LE2H_4(VARIABLE); break; \
  case 8: VARIABLE = LE2H_8(VARIABLE); break; \
  /*case 16: VARIABLE = LE2H_16(VARIABLE); break;*/ \
  } \
} while (0)



/* TARGET WORD:

   Byte swap a quantity the size of the targets word */

#if (WITH_TARGET_WORD_BITSIZE == 64)
#define H2T_word H2T_8
#define T2H_word T2H_8
#define H2BE_word H2BE_8
#define BE2H_word BE2H_8
#define H2LE_word H2LE_8
#define LE2H_word LE2H_8
#define SWAP_word SWAP_8
#endif
#if (WITH_TARGET_WORD_BITSIZE == 32)
#define H2T_word H2T_4
#define T2H_word T2H_4
#define H2BE_word H2BE_4
#define BE2H_word BE2H_4
#define H2LE_word H2LE_4
#define LE2H_word LE2H_4
#define SWAP_word SWAP_4
#endif



/* TARGET CELL:

   Byte swap a quantity the size of the targets IEEE 1275 memory cell */

#define H2T_cell H2T_4
#define T2H_cell T2H_4
#define H2BE_cell H2BE_4
#define BE2H_cell BE2H_4
#define H2LE_cell H2LE_4
#define LE2H_cell LE2H_4
#define SWAP_cell SWAP_4



/* HOST Offsets:

   Address of high/low sub-word within a host word quantity.

   Address of sub-word N within a host word quantity.  NOTE: Numbering
   is BIG endian always. */

#define AH1_2(X) (unsigned_1*)offset_2((X), 1, 0)
#define AL1_2(X) (unsigned_1*)offset_2((X), 1, 1)

#define AH2_4(X) (unsigned_2*)offset_4((X), 2, 0)
#define AL2_4(X) (unsigned_2*)offset_4((X), 2, 1)

#define AH4_8(X) (unsigned_4*)offset_8((X), 4, 0)
#define AL4_8(X) (unsigned_4*)offset_8((X), 4, 1)

#define AH8_16(X) (unsigned_8*)offset_16((X), 8, 0)
#define AL8_16(X) (unsigned_8*)offset_16((X), 8, 1)

#if (WITH_TARGET_WORD_BITSIZE == 64)
#define AH_word(X) AH4_8(X)
#define AL_word(X) AL4_8(X)
#endif
#if (WITH_TARGET_WORD_BITSIZE == 32)
#define AH_word(X) AH2_4(X)
#define AL_word(X) AL2_4(X)
#endif


#define A1_2(X,N) (unsigned_1*)offset_2((X), 1, (N))

#define A1_4(X,N) (unsigned_1*)offset_4((X), 1, (N))
#define A2_4(X,N) (unsigned_2*)offset_4((X), 2, (N))

#define A1_8(X,N) (unsigned_1*)offset_8((X), 1, (N))
#define A2_8(X,N) (unsigned_2*)offset_8((X), 2, (N))
#define A4_8(X,N) (unsigned_4*)offset_8((X), 4, (N))

#define A1_16(X,N) (unsigned_1*)offset_16((X), 1, (N))
#define A2_16(X,N) (unsigned_2*)offset_16((X), 2, (N))
#define A4_16(X,N) (unsigned_4*)offset_16((X), 4, (N))
#define A8_16(X,N) (unsigned_8*)offset_16((X), 8, (N))




/* HOST Components:

   Value of sub-word within a host word quantity */

#define VH1_2(X) ((unsigned_1)((unsigned_2)(X) >> 8))
#define VL1_2(X) (unsigned_1)(X)

#define VH2_4(X) ((unsigned_2)((unsigned_4)(X) >> 16))
#define VL2_4(X) ((unsigned_2)(X))

#define VH4_8(X) ((unsigned_4)((unsigned_8)(X) >> 32))
#define VL4_8(X) ((unsigned_4)(X))

#define VH8_16(X) (sim_endian_split_16 ((X), 0))
#define VL8_16(X) (sim_endian_split_16 ((X), 1))

#if (WITH_TARGET_WORD_BITSIZE == 64)
#define VH_word(X) VH4_8(X)
#define VL_word(X) VL4_8(X)
#endif
#if (WITH_TARGET_WORD_BITSIZE == 32)
#define VH_word(X) VH2_4(X)
#define VL_word(X) VL2_4(X)
#endif


#define V1_2(X,N) ((unsigned_1)((unsigned_2)(X) >> ( 8 * (1 - (N)))))

#define V1_4(X,N) ((unsigned_1)((unsigned_4)(X) >> ( 8 * (3 - (N)))))
#define V2_4(X,N) ((unsigned_2)((unsigned_4)(X) >> (16 * (1 - (N)))))

#define V1_8(X,N) ((unsigned_1)((unsigned_8)(X) >> ( 8 * (7 - (N)))))
#define V2_8(X,N) ((unsigned_2)((unsigned_8)(X) >> (16 * (3 - (N)))))
#define V4_8(X,N) ((unsigned_4)((unsigned_8)(X) >> (32 * (1 - (N)))))

#define V1_16(X,N) (*A1_16 (&(X),N))
#define V2_16(X,N) (*A2_16 (&(X),N))
#define V4_16(X,N) (*A4_16 (&(X),N))
#define V8_16(X,N) (*A8_16 (&(X),N))


/* Reverse - insert sub-word into word quantity */

#define V2_H1(X) ((unsigned_2)(unsigned_1)(X) <<  8)
#define V2_L1(X) ((unsigned_2)(unsigned_1)(X))

#define V4_H2(X) ((unsigned_4)(unsigned_2)(X) << 16)
#define V4_L2(X) ((unsigned_4)(unsigned_2)(X))

#define V8_H4(X) ((unsigned_8)(unsigned_4)(X) << 32)
#define V8_L4(X) ((unsigned_8)(unsigned_4)(X))

#define V16_H8(X) ((unsigned_16)(unsigned_8)(X) << 64)
#define V16_L8(X) ((unsigned_16)(unsigned_8)(X))


#define V2_1(X,N) ((unsigned_2)(unsigned_1)(X) << ( 8 * (1 - (N))))

#define V4_1(X,N) ((unsigned_4)(unsigned_1)(X) << ( 8 * (3 - (N))))
#define V4_2(X,N) ((unsigned_4)(unsigned_2)(X) << (16 * (1 - (N))))

#define V8_1(X,N) ((unsigned_8)(unsigned_1)(X) << ( 8 * (7 - (N))))
#define V8_2(X,N) ((unsigned_8)(unsigned_2)(X) << (16 * (3 - (N))))
#define V8_4(X,N) ((unsigned_8)(unsigned_4)(X) << (32 * (1 - (N))))

#define V16_1(X,N) ((unsigned_16)(unsigned_1)(X) << ( 8 * (15 - (N))))
#define V16_2(X,N) ((unsigned_16)(unsigned_2)(X) << (16 * (7 - (N))))
#define V16_4(X,N) ((unsigned_16)(unsigned_4)(X) << (32 * (3 - (N))))
#define V16_8(X,N) ((unsigned_16)(unsigned_8)(X) << (64 * (1 - (N))))


/* Reverse - insert N sub-words into single word quantity */

#define U2_1(I0,I1) (V2_1(I0,0) | V2_1(I1,1))
#define U4_1(I0,I1,I2,I3) (V4_1(I0,0) | V4_1(I1,1) | V4_1(I2,2) | V4_1(I3,3))
#define U8_1(I0,I1,I2,I3,I4,I5,I6,I7) \
(V8_1(I0,0) | V8_1(I1,1) | V8_1(I2,2) | V8_1(I3,3) \
 | V8_1(I4,4) | V8_1(I5,5) | V8_1(I6,6) | V8_1(I7,7))
#define U16_1(I0,I1,I2,I3,I4,I5,I6,I7,I8,I9,I10,I11,I12,I13,I14,I15) \
(V16_1(I0,0) | V16_1(I1,1) | V16_1(I2,2) | V16_1(I3,3) \
 | V16_1(I4,4) | V16_1(I5,5) | V16_1(I6,6) | V16_1(I7,7) \
 | V16_1(I8,8) | V16_1(I9,9) | V16_1(I10,10) | V16_1(I11,11) \
 | V16_1(I12,12) | V16_1(I13,13) | V16_1(I14,14) | V16_1(I15,15))

#define U4_2(I0,I1) (V4_2(I0,0) | V4_2(I1,1))
#define U8_2(I0,I1,I2,I3) (V8_2(I0,0) | V8_2(I1,1) | V8_2(I2,2) | V8_2(I3,3))
#define U16_2(I0,I1,I2,I3,I4,I5,I6,I7) \
(V16_2(I0,0) | V16_2(I1,1) | V16_2(I2,2) | V16_2(I3,3) \
 | V16_2(I4,4) | V16_2(I5,5) | V16_2(I6,6) | V16_2(I7,7) )

#define U8_4(I0,I1) (V8_4(I0,0) | V8_4(I1,1))
#define U16_4(I0,I1,I2,I3) (V16_4(I0,0) | V16_4(I1,1) | V16_4(I2,2) | V16_4(I3,3))

#define U16_8(I0,I1) (sim_endian_join_16 (I0, I1))


#if (WITH_TARGET_WORD_BITSIZE == 64)
#define Vword_H(X) V8_H4(X)
#define Vword_L(X) V8_L4(X)
#endif
#if (WITH_TARGET_WORD_BITSIZE == 32)
#define Vword_H(X) V4_H2(X)
#define Vword_L(X) V4_L2(X)
#endif




#if H_REVEALS_MODULE_P (SIM_ENDIAN_INLINE)
#include "sim-endian.c"
#endif

#endif /* SIM_ENDIAN_H */