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[/] [or1k_old/] [trunk/] [gdb-5.0/] [sim/] [ppc/] [sim-endian.h] - Blame information for rev 1782

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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_H_
23 
#define _SIM_ENDIAN_H_
24 
 
25 
 
26 
/* C byte conversion functions */
27 
 
28 
INLINE_SIM_ENDIAN(unsigned_1) endian_h2t_1(unsigned_1 x);
29 
INLINE_SIM_ENDIAN(unsigned_2) endian_h2t_2(unsigned_2 x);
30 
INLINE_SIM_ENDIAN(unsigned_4) endian_h2t_4(unsigned_4 x);
31 
INLINE_SIM_ENDIAN(unsigned_8) endian_h2t_8(unsigned_8 x);
32 
 
33 
INLINE_SIM_ENDIAN(unsigned_1) endian_t2h_1(unsigned_1 x);
34 
INLINE_SIM_ENDIAN(unsigned_2) endian_t2h_2(unsigned_2 x);
35 
INLINE_SIM_ENDIAN(unsigned_4) endian_t2h_4(unsigned_4 x);
36 
INLINE_SIM_ENDIAN(unsigned_8) endian_t2h_8(unsigned_8 x);
37 
 
38 
INLINE_SIM_ENDIAN(unsigned_1) swap_1(unsigned_1 x);
39 
INLINE_SIM_ENDIAN(unsigned_2) swap_2(unsigned_2 x);
40 
INLINE_SIM_ENDIAN(unsigned_4) swap_4(unsigned_4 x);
41 
INLINE_SIM_ENDIAN(unsigned_8) swap_8(unsigned_8 x);
42 
 
43 
INLINE_SIM_ENDIAN(unsigned_1) endian_h2be_1(unsigned_1 x);
44 
INLINE_SIM_ENDIAN(unsigned_2) endian_h2be_2(unsigned_2 x);
45 
INLINE_SIM_ENDIAN(unsigned_4) endian_h2be_4(unsigned_4 x);
46 
INLINE_SIM_ENDIAN(unsigned_8) endian_h2be_8(unsigned_8 x);
47 
 
48 
INLINE_SIM_ENDIAN(unsigned_1) endian_be2h_1(unsigned_1 x);
49 
INLINE_SIM_ENDIAN(unsigned_2) endian_be2h_2(unsigned_2 x);
50 
INLINE_SIM_ENDIAN(unsigned_4) endian_be2h_4(unsigned_4 x);
51 
INLINE_SIM_ENDIAN(unsigned_8) endian_be2h_8(unsigned_8 x);
52 
 
53 
INLINE_SIM_ENDIAN(unsigned_1) endian_h2le_1(unsigned_1 x);
54 
INLINE_SIM_ENDIAN(unsigned_2) endian_h2le_2(unsigned_2 x);
55 
INLINE_SIM_ENDIAN(unsigned_4) endian_h2le_4(unsigned_4 x);
56 
INLINE_SIM_ENDIAN(unsigned_8) endian_h2le_8(unsigned_8 x);
57 
 
58 
INLINE_SIM_ENDIAN(unsigned_1) endian_le2h_1(unsigned_1 x);
59 
INLINE_SIM_ENDIAN(unsigned_2) endian_le2h_2(unsigned_2 x);
60 
INLINE_SIM_ENDIAN(unsigned_4) endian_le2h_4(unsigned_4 x);
61 
INLINE_SIM_ENDIAN(unsigned_8) endian_le2h_8(unsigned_8 x);
62 
 
63 
 
64 
/* Host dependant:
65 
 
66 
   The CPP below defines information about the compilation host.  In
67 
   particular it defines the macro's:
68 
 
69 
        WITH_HOST_BYTE_ORDER    The byte order of the host. Could
70 
                                be any of LITTLE_ENDIAN, BIG_ENDIAN
71 
                                or 0 (unknown).  Those macro's also
72 
                                need to be defined.
73 
 
74 
 */
75 
 
76 
 
77 
/* NetBSD:
78 
 
79 
   NetBSD is easy, everything you could ever want is in a header file
80 
   (well almost :-) */
81 
 
82 
#if defined(__NetBSD__)
83 
# include <machine/endian.h>
84 
# if (WITH_HOST_BYTE_ORDER == 0)
85 
#  undef WITH_HOST_BYTE_ORDER
86 
#  define WITH_HOST_BYTE_ORDER BYTE_ORDER
87 
# endif
88 
# if (BYTE_ORDER != WITH_HOST_BYTE_ORDER)
89 
#  error "host endian incorrectly configured, check config.h"
90 
# endif
91 
#endif
92 
 
93 
/* Linux is similarly easy.  */
94 
 
95 
#if defined(__linux__)
96 
# include <endian.h>
97 
# include <asm/byteorder.h>
98 
# if defined(__LITTLE_ENDIAN) && !defined(LITTLE_ENDIAN)
99 
#  define LITTLE_ENDIAN __LITTLE_ENDIAN
100 
# endif
101 
# if defined(__BIG_ENDIAN) && !defined(BIG_ENDIAN)
102 
#  define BIG_ENDIAN __BIG_ENDIAN
103 
# endif
104 
# if defined(__BYTE_ORDER) && !defined(BYTE_ORDER)
105 
#  define BYTE_ORDER __BYTE_ORDER
106 
# endif
107 
# if (WITH_HOST_BYTE_ORDER == 0)
108 
#  undef WITH_HOST_BYTE_ORDER
109 
#  define WITH_HOST_BYTE_ORDER BYTE_ORDER
110 
# endif
111 
# if (BYTE_ORDER != WITH_HOST_BYTE_ORDER)
112 
#  error "host endian incorrectly configured, check config.h"
113 
# endif
114 
#endif
115 
 
116 
/* INSERT HERE - hosts that have available LITTLE_ENDIAN and
117 
   BIG_ENDIAN macro's */
118 
 
119 
 
120 
/* Some hosts don't define LITTLE_ENDIAN or BIG_ENDIAN, help them out */
121 
 
122 
#ifndef LITTLE_ENDIAN
123 
#define LITTLE_ENDIAN 1234
124 
#endif
125 
#ifndef BIG_ENDIAN
126 
#define BIG_ENDIAN 4321
127 
#endif
128 
 
129 
 
130 
/* SunOS on SPARC:
131 
 
132 
   Big endian last time I looked */
133 
 
134 
#if defined(sparc) || defined(__sparc__)
135 
# if (WITH_HOST_BYTE_ORDER == 0)
136 
#  undef WITH_HOST_BYTE_ORDER
137 
#  define WITH_HOST_BYTE_ORDER BIG_ENDIAN
138 
# endif
139 
# if (WITH_HOST_BYTE_ORDER != BIG_ENDIAN)
140 
#  error "sun was big endian last time I looked ..."
141 
# endif
142 
#endif
143 
 
144 
 
145 
/* Random x86
146 
 
147 
   Little endian last time I looked */
148 
 
149 
#if defined(i386) || defined(i486) || defined(i586) || defined (i686) || defined(__i386__) || defined(__i486__) || defined(__i586__) || defined (__i686__)
150 
# if (WITH_HOST_BYTE_ORDER == 0)
151 
#  undef WITH_HOST_BYTE_ORDER
152 
#  define WITH_HOST_BYTE_ORDER LITTLE_ENDIAN
153 
# endif
154 
# if (WITH_HOST_BYTE_ORDER != LITTLE_ENDIAN)
155 
#  error "x86 was little endian last time I looked ..."
156 
# endif
157 
#endif
158 
 
159 
#if (defined (__i486__) || defined (__i586__) || defined (__i686__)) && defined(__GNUC__) && WITH_BSWAP
160 
#undef  htonl
161 
#undef  ntohl
162 
#define htonl(IN) __extension__ ({ int _out; __asm__ ("bswap %0" : "=r" (_out) : "0" (IN)); _out; })
163 
#define ntohl(IN) __extension__ ({ int _out; __asm__ ("bswap %0" : "=r" (_out) : "0" (IN)); _out; })
164 
#endif
165 
 
166 
/* Power or PowerPC running AIX  */
167 
#if defined(_POWER) && defined(_AIX)
168 
# if (WITH_HOST_BYTE_ORDER == 0)
169 
#  undef WITH_HOST_BYTE_ORDER
170 
#  define WITH_HOST_BYTE_ORDER BIG_ENDIAN
171 
# endif
172 
# if (WITH_HOST_BYTE_ORDER != BIG_ENDIAN)
173 
#  error "Power/PowerPC AIX was big endian last time I looked ..."
174 
# endif
175 
#endif
176 
 
177 
/* Solaris running PowerPC */
178 
#if defined(__PPC) && defined(__sun__)
179 
# if (WITH_HOST_BYTE_ORDER == 0)
180 
#  undef WITH_HOST_BYTE_ORDER
181 
#  define WITH_HOST_BYTE_ORDER LITTLE_ENDIAN
182 
# endif
183 
# if (WITH_HOST_BYTE_ORDER != LITTLE_ENDIAN)
184 
#  error "Solaris on PowerPCs was little endian last time I looked ..."
185 
# endif
186 
#endif
187 
 
188 
/* HP/PA */
189 
#if defined(__hppa__)
190 
# if (WITH_HOST_BYTE_ORDER == 0)
191 
#  undef WITH_HOST_BYTE_ORDER
192 
#  define WITH_HOST_BYTE_ORDER BIG_ENDIAN
193 
# endif
194 
# if (WITH_HOST_BYTE_ORDER != BIG_ENDIAN)
195 
#  error "HP/PA was big endian last time I looked ..."
196 
# endif
197 
#endif
198 
 
199 
/* Big endian MIPS */
200 
#if defined(__MIPSEB__)
201 
# if (WITH_HOST_BYTE_ORDER == 0)
202 
#  undef WITH_HOST_BYTE_ORDER
203 
#  define WITH_HOST_BYTE_ORDER BIG_ENDIAN
204 
# endif
205 
# if (WITH_HOST_BYTE_ORDER != BIG_ENDIAN)
206 
#  error "MIPSEB was big endian last time I looked ..."
207 
# endif
208 
#endif
209 
 
210 
/* Little endian MIPS */
211 
#if defined(__MIPSEL__)
212 
# if (WITH_HOST_BYTE_ORDER == 0)
213 
#  undef WITH_HOST_BYTE_ORDER
214 
#  define WITH_HOST_BYTE_ORDER LITTLE_ENDIAN
215 
# endif
216 
# if (WITH_HOST_BYTE_ORDER != LITTLE_ENDIAN)
217 
#  error "MIPSEL was little endian last time I looked ..."
218 
# endif
219 
#endif
220 
 
221 
/* Windows NT */
222 
#if defined(__WIN32__)
223 
# if (WITH_HOST_BYTE_ORDER == 0)
224 
#  undef WITH_HOST_BYTE_ORDER
225 
#  define WITH_HOST_BYTE_ORDER LITTLE_ENDIAN
226 
# endif
227 
# if (WITH_HOST_BYTE_ORDER != LITTLE_ENDIAN)
228 
#  error "Windows NT was little endian last time I looked ..."
229 
# endif
230 
#endif
231 
 
232 
/* Alpha running DEC unix */
233 
#if defined(__osf__) && defined(__alpha__)
234 
# if (WITH_HOST_BYTE_ORDER == 0)
235 
#  undef WITH_HOST_BYTE_ORDER
236 
#  define WITH_HOST_BYTE_ORDER LITTLE_ENDIAN
237 
# endif
238 
# if (WITH_HOST_BYTE_ORDER != LITTLE_ENDIAN)
239 
#  error "AXP running DEC unix was little endian last time I looked ..."
240 
# endif
241 
#endif
242 
 
243 
 
244 
/* INSERT HERE - additional hosts that do not have LITTLE_ENDIAN and
245 
   BIG_ENDIAN definitions available.  */
246 
 
247 
/* SWAP */
248 
 
249 
#define SWAP_1(X) swap_1(X)
250 
#define SWAP_2(X) swap_2(X)
251 
#define SWAP_4(X) swap_4(X)
252 
#define SWAP_8(X) swap_8(X)
253 
 
254 
 
255 
/* HOST to BE */
256 
 
257 
#define H2BE_1(X) endian_h2be_1(X)
258 
#define H2BE_2(X) endian_h2be_2(X)
259 
#define H2BE_4(X) endian_h2be_4(X)
260 
#define H2BE_8(X) endian_h2be_8(X)
261 
#define BE2H_1(X) endian_be2h_1(X)
262 
#define BE2H_2(X) endian_be2h_2(X)
263 
#define BE2H_4(X) endian_be2h_4(X)
264 
#define BE2H_8(X) endian_be2h_8(X)
265 
 
266 
 
267 
/* HOST to LE */
268 
 
269 
#define H2LE_1(X) endian_h2le_1(X)
270 
#define H2LE_2(X) endian_h2le_2(X)
271 
#define H2LE_4(X) endian_h2le_4(X)
272 
#define H2LE_8(X) endian_h2le_8(X)
273 
#define LE2H_1(X) endian_le2h_1(X)
274 
#define LE2H_2(X) endian_le2h_2(X)
275 
#define LE2H_4(X) endian_le2h_4(X)
276 
#define LE2H_8(X) endian_le2h_8(X)
277 
 
278 
 
279 
/* HOST to TARGET */
280 
 
281 
#define H2T_1(X) endian_h2t_1(X)
282 
#define H2T_2(X) endian_h2t_2(X)
283 
#define H2T_4(X) endian_h2t_4(X)
284 
#define H2T_8(X) endian_h2t_8(X)
285 
#define T2H_1(X) endian_t2h_1(X)
286 
#define T2H_2(X) endian_t2h_2(X)
287 
#define T2H_4(X) endian_t2h_4(X)
288 
#define T2H_8(X) endian_t2h_8(X)
289 
 
290 
 
291 
/* CONVERT IN PLACE
292 
 
293 
   These macros, given an argument of unknown size, swap its value in
294 
   place if a host/target conversion is required. */
295 
 
296 
#define H2T(VARIABLE) \
297 
do { \
298 
  switch (sizeof(VARIABLE)) { \
299 
  case 1: VARIABLE = H2T_1(VARIABLE); break; \
300 
  case 2: VARIABLE = H2T_2(VARIABLE); break; \
301 
  case 4: VARIABLE = H2T_4(VARIABLE); break; \
302 
  case 8: VARIABLE = H2T_8(VARIABLE); break; \
303 
  } \
304 
} while (0)
305 
 
306 
#define T2H(VARIABLE) \
307 
do { \
308 
  switch (sizeof(VARIABLE)) { \
309 
  case 1: VARIABLE = T2H_1(VARIABLE); break; \
310 
  case 2: VARIABLE = T2H_2(VARIABLE); break; \
311 
  case 4: VARIABLE = T2H_4(VARIABLE); break; \
312 
  case 8: VARIABLE = T2H_8(VARIABLE); break; \
313 
  } \
314 
} while (0)
315 
 
316 
#define SWAP(VARIABLE) \
317 
do { \
318 
  switch (sizeof(VARIABLE)) { \
319 
  case 1: VARIABLE = SWAP_1(VARIABLE); break; \
320 
  case 2: VARIABLE = SWAP_2(VARIABLE); break; \
321 
  case 4: VARIABLE = SWAP_4(VARIABLE); break; \
322 
  case 8: VARIABLE = SWAP_8(VARIABLE); break; \
323 
  } \
324 
} while (0)
325 
 
326 
#define H2BE(VARIABLE) \
327 
do { \
328 
  switch (sizeof(VARIABLE)) { \
329 
  case 1: VARIABLE = H2BE_1(VARIABLE); break; \
330 
  case 2: VARIABLE = H2BE_2(VARIABLE); break; \
331 
  case 4: VARIABLE = H2BE_4(VARIABLE); break; \
332 
  case 8: VARIABLE = H2BE_8(VARIABLE); break; \
333 
  } \
334 
} while (0)
335 
 
336 
#define BE2H(VARIABLE) \
337 
do { \
338 
  switch (sizeof(VARIABLE)) { \
339 
  case 1: VARIABLE = BE2H_1(VARIABLE); break; \
340 
  case 2: VARIABLE = BE2H_2(VARIABLE); break; \
341 
  case 4: VARIABLE = BE2H_4(VARIABLE); break; \
342 
  case 8: VARIABLE = BE2H_8(VARIABLE); break; \
343 
  } \
344 
} while (0)
345 
 
346 
#define H2LE(VARIABLE) \
347 
do { \
348 
  switch (sizeof(VARIABLE)) { \
349 
  case 1: VARIABLE = H2LE_1(VARIABLE); break; \
350 
  case 2: VARIABLE = H2LE_2(VARIABLE); break; \
351 
  case 4: VARIABLE = H2LE_4(VARIABLE); break; \
352 
  case 8: VARIABLE = H2LE_8(VARIABLE); break; \
353 
  } \
354 
} while (0)
355 
 
356 
#define LE2H(VARIABLE) \
357 
do { \
358 
  switch (sizeof(VARIABLE)) { \
359 
  case 1: VARIABLE = LE2H_1(VARIABLE); break; \
360 
  case 2: VARIABLE = LE2H_2(VARIABLE); break; \
361 
  case 4: VARIABLE = LE2H_4(VARIABLE); break; \
362 
  case 8: VARIABLE = LE2H_8(VARIABLE); break; \
363 
  } \
364 
} while (0)
365 
 
366 
 
367 
 
368 
/* TARGET WORD:
369 
 
370 
   Byte swap a quantity the size of the targets word */
371 
 
372 
#if (WITH_TARGET_WORD_BITSIZE == 64)
373 
#define H2T_word(X) H2T_8(X)
374 
#define T2H_word(X) T2H_8(X)
375 
#define H2BE_word(X) H2BE_8(X)
376 
#define BE2H_word(X) BE2H_8(X)
377 
#define H2LE_word(X) H2LE_8(X)
378 
#define LE2H_word(X) LE2H_8(X)
379 
#define SWAP_word(X) SWAP_8(X)
380 
#endif
381 
#if (WITH_TARGET_WORD_BITSIZE == 32)
382 
#define H2T_word(X) H2T_4(X)
383 
#define T2H_word(X) T2H_4(X)
384 
#define H2BE_word(X) H2BE_4(X)
385 
#define BE2H_word(X) BE2H_4(X)
386 
#define H2LE_word(X) H2LE_4(X)
387 
#define LE2H_word(X) LE2H_4(X)
388 
#define SWAP_word(X) SWAP_4(X)
389 
#endif
390 
 
391 
 
392 
/* TARGET CELL:
393 
 
394 
   Byte swap a quantity the size of the targets IEEE 1275 memory cell */
395 
 
396 
#define H2T_cell(X) H2T_4(X)
397 
#define T2H_cell(X) T2H_4(X)
398 
#define H2BE_cell(X) H2BE_4(X)
399 
#define BE2H_cell(X) BE2H_4(X)
400 
#define H2LE_cell(X) H2LE_4(X)
401 
#define LE2H_cell(X) LE2H_4(X)
402 
#define SWAP_cell(X) SWAP_4(X)
403 
 
404 
 
405 
#if (SIM_ENDIAN_INLINE & INCLUDE_MODULE)
406 
# include "sim-endian.c"
407 
#endif
408 
 
409 
#endif /* _SIM_ENDIAN_H_ */

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