sim/common/sim-endian.h

   1 /*  This file is part of the program psim.
   2
   3     Copyright (C) 1994-1995, Andrew Cagney <cagney@highland.com.au>
   4     Copyright (C) 1997, Free Software Foundation, Inc.
   5
   6     This program is free software; you can redistribute it and/or modify
   7     it under the terms of the GNU General Public License as published by
   8     the Free Software Foundation; either version 2 of the License, or
   9     (at your option) any later version.
  10
  11     This program is distributed in the hope that it will be useful,
  12     but WITHOUT ANY WARRANTY; without even the implied warranty of
  13     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14     GNU General Public License for more details.
  15
  16     You should have received a copy of the GNU General Public License
  17     along with this program; if not, write to the Free Software
  18     Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
  19
  20     */
  21
  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);
  37 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
  78 /* SWAP */
  79
  80 #define SWAP_1(X) swap_1(X)
  81 #define SWAP_2(X) swap_2(X)
  82 #define SWAP_4(X) swap_4(X)
  83 #define SWAP_8(X) swap_8(X)
  84 #define SWAP_16(X) swap_16(X)
  85
  86
  87 /* HOST to BE */
  88
  89 #define H2BE_1(X) endian_h2be_1(X)
  90 #define H2BE_2(X) endian_h2be_2(X)
  91 #define H2BE_4(X) endian_h2be_4(X)
  92 #define H2BE_8(X) endian_h2be_8(X)
  93 #define H2BE_16(X) endian_h2be_16(X)
  94 #define BE2H_1(X) endian_be2h_1(X)
  95 #define BE2H_2(X) endian_be2h_2(X)
  96 #define BE2H_4(X) endian_be2h_4(X)
  97 #define BE2H_8(X) endian_be2h_8(X)
  98 #define BE2H_16(X) endian_be2h_16(X)
  99
 100
 101 /* HOST to LE */
 102
 103 #define H2LE_1(X) endian_h2le_1(X)
 104 #define H2LE_2(X) endian_h2le_2(X)
 105 #define H2LE_4(X) endian_h2le_4(X)
 106 #define H2LE_8(X) endian_h2le_8(X)
 107 #define H2LE_16(X) endian_h2le_16(X)
 108 #define LE2H_1(X) endian_le2h_1(X)
 109 #define LE2H_2(X) endian_le2h_2(X)
 110 #define LE2H_4(X) endian_le2h_4(X)
 111 #define LE2H_8(X) endian_le2h_8(X)
 112 #define LE2H_16(X) endian_le2h_16(X)
 113
 114
 115 /* HOST to TARGET */
 116
 117 #define H2T_1(X) endian_h2t_1(X)
 118 #define H2T_2(X) endian_h2t_2(X)
 119 #define H2T_4(X) endian_h2t_4(X)
 120 #define H2T_8(X) endian_h2t_8(X)
 121 #define H2T_16(X) endian_h2t_16(X)
 122 #define T2H_1(X) endian_t2h_1(X)
 123 #define T2H_2(X) endian_t2h_2(X)
 124 #define T2H_4(X) endian_t2h_4(X)
 125 #define T2H_8(X) endian_t2h_8(X)
 126 #define T2H_16(X) endian_t2h_16(X)
 127
 128
 129 /* CONVERT IN PLACE
 130
 131    These macros, given an argument of unknown size, swap its value in
 132    place if a host/target conversion is required. */
 133
 134 #define H2T(VARIABLE) \
 135 do { \
 136   void *vp = &(VARIABLE); \
 137   switch (sizeof (VARIABLE)) { \
 138   case 1: *(unsigned_1*)vp = H2T_1(*(unsigned_1*)vp); break; \
 139   case 2: *(unsigned_2*)vp = H2T_2(*(unsigned_2*)vp); break; \
 140   case 4: *(unsigned_4*)vp = H2T_4(*(unsigned_4*)vp); break; \
 141   case 8: *(unsigned_8*)vp = H2T_8(*(unsigned_8*)vp); break; \
 142   case 16: *(unsigned_16*)vp = H2T_16(*(unsigned_16*)vp); break; \
 143   } \
 144 } while (0)
 145
 146 #define T2H(VARIABLE) \
 147 do { \
 148   switch (sizeof(VARIABLE)) { \
 149   case 1: VARIABLE = T2H_1(VARIABLE); break; \
 150   case 2: VARIABLE = T2H_2(VARIABLE); break; \
 151   case 4: VARIABLE = T2H_4(VARIABLE); break; \
 152   case 8: VARIABLE = T2H_8(VARIABLE); break; \
 153   /*case 16: VARIABLE = T2H_16(VARIABLE); break;*/ \
 154   } \
 155 } while (0)
 156
 157 #define SWAP(VARIABLE) \
 158 do { \
 159   switch (sizeof(VARIABLE)) { \
 160   case 1: VARIABLE = SWAP_1(VARIABLE); break; \
 161   case 2: VARIABLE = SWAP_2(VARIABLE); break; \
 162   case 4: VARIABLE = SWAP_4(VARIABLE); break; \
 163   case 8: VARIABLE = SWAP_8(VARIABLE); break; \
 164   /*case 16: VARIABLE = SWAP_16(VARIABLE); break;*/ \
 165   } \
 166 } while (0)
 167
 168 #define H2BE(VARIABLE) \
 169 do { \
 170   switch (sizeof(VARIABLE)) { \
 171   case 1: VARIABLE = H2BE_1(VARIABLE); break; \
 172   case 2: VARIABLE = H2BE_2(VARIABLE); break; \
 173   case 4: VARIABLE = H2BE_4(VARIABLE); break; \
 174   case 8: VARIABLE = H2BE_8(VARIABLE); break; \
 175   /*case 16: VARIABLE = H2BE_16(VARIABLE); break;*/ \
 176   } \
 177 } while (0)
 178
 179 #define BE2H(VARIABLE) \
 180 do { \
 181   switch (sizeof(VARIABLE)) { \
 182   case 1: VARIABLE = BE2H_1(VARIABLE); break; \
 183   case 2: VARIABLE = BE2H_2(VARIABLE); break; \
 184   case 4: VARIABLE = BE2H_4(VARIABLE); break; \
 185   case 8: VARIABLE = BE2H_8(VARIABLE); break; \
 186   /*case 16: VARIABLE = BE2H_16(VARIABLE); break;*/ \
 187   } \
 188 } while (0)
 189
 190 #define H2LE(VARIABLE) \
 191 do { \
 192   switch (sizeof(VARIABLE)) { \
 193   case 1: VARIABLE = H2LE_1(VARIABLE); break; \
 194   case 2: VARIABLE = H2LE_2(VARIABLE); break; \
 195   case 4: VARIABLE = H2LE_4(VARIABLE); break; \
 196   case 8: VARIABLE = H2LE_8(VARIABLE); break; \
 197   /*case 16: VARIABLE = H2LE_16(VARIABLE); break;*/ \
 198   } \
 199 } while (0)
 200
 201 #define LE2H(VARIABLE) \
 202 do { \
 203   switch (sizeof(VARIABLE)) { \
 204   case 1: VARIABLE = LE2H_1(VARIABLE); break; \
 205   case 2: VARIABLE = LE2H_2(VARIABLE); break; \
 206   case 4: VARIABLE = LE2H_4(VARIABLE); break; \
 207   case 8: VARIABLE = LE2H_8(VARIABLE); break; \
 208   /*case 16: VARIABLE = LE2H_16(VARIABLE); break;*/ \
 209   } \
 210 } while (0)
 211
 212
 213
 214 /* TARGET WORD:
 215
 216    Byte swap a quantity the size of the targets word */
 217
 218 #if (WITH_TARGET_WORD_BITSIZE == 64)
 219 #define H2T_word(X) H2T_8(X)
 220 #define T2H_word(X) T2H_8(X)
 221 #define H2BE_word(X) H2BE_8(X)
 222 #define BE2H_word(X) BE2H_8(X)
 223 #define H2LE_word(X) H2LE_8(X)
 224 #define LE2H_word(X) LE2H_8(X)
 225 #define SWAP_word(X) SWAP_8(X)
 226 #endif
 227 #if (WITH_TARGET_WORD_BITSIZE == 32)
 228 #define H2T_word(X) H2T_4(X)
 229 #define T2H_word(X) T2H_4(X)
 230 #define H2BE_word(X) H2BE_4(X)
 231 #define BE2H_word(X) BE2H_4(X)
 232 #define H2LE_word(X) H2LE_4(X)
 233 #define LE2H_word(X) LE2H_4(X)
 234 #define SWAP_word(X) SWAP_4(X)
 235 #endif
 236
 237
 238
 239 /* TARGET CELL:
 240
 241    Byte swap a quantity the size of the targets IEEE 1275 memory cell */
 242
 243 #define H2T_cell(X) H2T_4(X)
 244 #define T2H_cell(X) T2H_4(X)
 245 #define H2BE_cell(X) H2BE_4(X)
 246 #define BE2H_cell(X) BE2H_4(X)
 247 #define H2LE_cell(X) H2LE_4(X)
 248 #define LE2H_cell(X) LE2H_4(X)
 249 #define SWAP_cell(X) SWAP_4(X)
 250
 251
 252
 253 /* HOST Offsets:
 254
 255    Address of high/low sub-word within a host word quantity.
 256
 257    Address of sub-word N within a host word quantity.  NOTE: Numbering
 258    is BIG endian always. */
 259
 260 #define AH1_2(X) (unsigned_1*)offset_2((X), 1, 0)
 261 #define AL1_2(X) (unsigned_1*)offset_2((X), 1, 1)
 262
 263 #define AH2_4(X) (unsigned_2*)offset_4((X), 2, 0)
 264 #define AL2_4(X) (unsigned_2*)offset_4((X), 2, 1)
 265
 266 #define AH4_8(X) (unsigned_4*)offset_8((X), 4, 0)
 267 #define AL4_8(X) (unsigned_4*)offset_8((X), 4, 1)
 268
 269 #define AH8_16(X) (unsigned_8*)offset_16((X), 8, 0)
 270 #define AL8_16(X) (unsigned_8*)offset_16((X), 8, 1)
 271
 272 #if (WITH_TARGET_WORD_BITSIZE == 64)
 273 #define AH_word(X) AH4_8(X)
 274 #define AL_word(X) AL4_8(X)
 275 #endif
 276 #if (WITH_TARGET_WORD_BITSIZE == 32)
 277 #define AH_word(X) AH2_4(X)
 278 #define AL_word(X) AL2_4(X)
 279 #endif
 280
 281
 282 #define A1_2(X,N) (unsigned_1*)offset_2((X), 1, (N))
 283
 284 #define A1_4(X,N) (unsigned_1*)offset_4((X), 1, (N))
 285 #define A2_4(X,N) (unsigned_2*)offset_4((X), 2, (N))
 286
 287 #define A1_8(X,N) (unsigned_1*)offset_8((X), 1, (N))
 288 #define A2_8(X,N) (unsigned_2*)offset_8((X), 2, (N))
 289 #define A4_8(X,N) (unsigned_4*)offset_8((X), 4, (N))
 290
 291 #define A1_16(X,N) (unsigned_1*)offset_16((X), 1, (N))
 292 #define A2_16(X,N) (unsigned_2*)offset_16((X), 2, (N))
 293 #define A4_16(X,N) (unsigned_4*)offset_16((X), 4, (N))
 294 #define A8_16(X,N) (unsigned_8*)offset_16((X), 8, (N))
 295
 296
 297
 298
 299 /* HOST Components:
 300
 301    Value of sub-word within a host word quantity */
 302
 303 #define VH1_2(X) ((unsigned_1)((unsigned_2)(X) >> 8))
 304 #define VL1_2(X) (unsigned_1)(X)
 305
 306 #define VH2_4(X) ((unsigned_2)((unsigned_4)(X) >> 16))
 307 #define VL2_4(X) ((unsigned_2)(X))
 308
 309 #define VH4_8(X) ((unsigned_4)((unsigned_8)(X) >> 32))
 310 #define VL4_8(X) ((unsigned_4)(X))
 311
 312 #define VH8_16(X) ((unsigned_8)((unsigned_16)(X) >> 64))
 313 #define VL8_16(X) ((unsigned_8)(X))
 314
 315 #if (WITH_TARGET_WORD_BITSIZE == 64)
 316 #define VH_word(X) VH4_8(X)
 317 #define VL_word(X) VL4_8(X)
 318 #endif
 319 #if (WITH_TARGET_WORD_BITSIZE == 32)
 320 #define VH_word(X) VH2_4(X)
 321 #define VL_word(X) VL2_4(X)
 322 #endif
 323
 324
 325 #define V1_2(X,N) ((unsigned_1)((unsigned_2)(X) >> ( 8 * (1 - (N)))))
 326
 327 #define V1_4(X,N) ((unsigned_1)((unsigned_4)(X) >> ( 8 * (3 - (N)))))
 328 #define V2_4(X,N) ((unsigned_2)((unsigned_4)(X) >> (16 * (1 - (N)))))
 329
 330 #define V1_8(X,N) ((unsigned_1)((unsigned_8)(X) >> ( 8 * (7 - (N)))))
 331 #define V2_8(X,N) ((unsigned_2)((unsigned_8)(X) >> (16 * (3 - (N)))))
 332 #define V4_8(X,N) ((unsigned_4)((unsigned_8)(X) >> (32 * (1 - (N)))))
 333
 334 #define V1_16(X,N) (*A1_16 (&(X),N))
 335 #define V2_16(X,N) (*A2_16 (&(X),N))
 336 #define V4_16(X,N) (*A4_16 (&(X),N))
 337 #define V8_16(X,N) (*A8_16 (&(X),N))
 338
 339
 340 /* Reverse - insert sub-word into word quantity */
 341
 342 #define V2_H1(X) ((unsigned_2)(unsigned_1)(X) <<  8)
 343 #define V2_L1(X) ((unsigned_2)(unsigned_1)(X))
 344
 345 #define V4_H2(X) ((unsigned_4)(unsigned_2)(X) << 16)
 346 #define V4_L2(X) ((unsigned_4)(unsigned_2)(X))
 347
 348 #define V8_H4(X) ((unsigned_8)(unsigned_4)(X) << 32)
 349 #define V8_L4(X) ((unsigned_8)(unsigned_4)(X))
 350
 351 #define V16_H8(X) ((unsigned_16)(unsigned_8)(X) << 64)
 352 #define V16_L8(X) ((unsigned_16)(unsigned_8)(X))
 353
 354
 355 #define V2_1(X,N) ((unsigned_2)(unsigned_1)(X) << ( 8 * (1 - (N))))
 356
 357 #define V4_1(X,N) ((unsigned_4)(unsigned_1)(X) << ( 8 * (3 - (N))))
 358 #define V4_2(X,N) ((unsigned_4)(unsigned_2)(X) << (16 * (1 - (N))))
 359
 360 #define V8_1(X,N) ((unsigned_8)(unsigned_1)(X) << ( 8 * (7 - (N))))
 361 #define V8_2(X,N) ((unsigned_8)(unsigned_2)(X) << (16 * (3 - (N))))
 362 #define V8_4(X,N) ((unsigned_8)(unsigned_4)(X) << (32 * (1 - (N))))
 363
 364 #define V16_1(X,N) ((unsigned_16)(unsigned_1)(X) << ( 8 * (15 - (N))))
 365 #define V16_2(X,N) ((unsigned_16)(unsigned_2)(X) << (16 * (7 - (N))))
 366 #define V16_4(X,N) ((unsigned_16)(unsigned_4)(X) << (32 * (3 - (N))))
 367 #define V16_8(X,N) ((unsigned_16)(unsigned_8)(X) << (64 * (1 - (N))))
 368
 369
 370 /* Reverse - insert N sub-words into single word quantity */
 371
 372 #define U2_1(I0,I1) (V2_1(I0,0) | V2_1(I1,1))
 373 #define U4_1(I0,I1,I2,I3) (V4_1(I0,0) | V4_1(I1,1) | V4_1(I2,2) | V4_1(I3,3))
 374 #define U8_1(I0,I1,I2,I3,I4,I5,I6,I7) \
 375 (V8_1(I0,0) | V8_1(I1,1) | V8_1(I2,2) | V8_1(I3,3) \
 376  | V8_1(I4,4) | V8_1(I5,5) | V8_1(I6,6) | V8_1(I7,7))
 377 #define U16_1(I0,I1,I2,I3,I4,I5,I6,I7,I8,I9,I10,I11,I12,I13,I14,I15) \
 378 (V16_1(I0,0) | V16_1(I1,1) | V16_1(I2,2) | V16_1(I3,3) \
 379  | V16_1(I4,4) | V16_1(I5,5) | V16_1(I6,6) | V16_1(I7,7) \
 380  | V16_1(I8,8) | V16_1(I9,9) | V16_1(I10,10) | V16_1(I11,11) \
 381  | V16_1(I12,12) | V16_1(I13,13) | V16_1(I14,14) | V16_1(I15,15))
 382
 383 #define U4_2(I0,I1) (V4_2(I0,0) | V4_2(I1,1))
 384 #define U8_2(I0,I1,I2,I3) (V8_2(I0,0) | V8_2(I1,1) | V8_2(I2,2) | V8_2(I3,3))
 385 #define U16_2(I0,I1,I2,I3,I4,I5,I6,I7) \
 386 (V16_2(I0,0) | V16_2(I1,1) | V16_2(I2,2) | V16_2(I3,3) \
 387  | V16_2(I4,4) | V16_2(I5,5) | V16_2(I6,6) | V16_2(I7,7) )
 388
 389 #define U8_4(I0,I1) (V8_4(I0,0) | V8_4(I1,1))
 390 #define U16_4(I0,I1,I2,I3) (V16_4(I0,0) | V16_4(I1,1) | V16_4(I2,2) | V16_4(I3,3))
 391
 392 #define U16_8(I0,I1) (V16_8(I0,0) | V16_8(I1,1))
 393
 394
 395 #if (WITH_TARGET_WORD_BITSIZE == 64)
 396 #define Vword_H(X) V8_H4(X)
 397 #define Vword_L(X) V8_L4(X)
 398 #endif
 399 #if (WITH_TARGET_WORD_BITSIZE == 32)
 400 #define Vword_H(X) V4_H2(X)
 401 #define Vword_L(X) V4_L2(X)
 402 #endif
 403
 404
 405
 406
 407 #if (SIM_ENDIAN_INLINE & INCLUDE_MODULE)
 408 # include "sim-endian.c"
 409 #endif
 410
 411 #endif /* _SIM_ENDIAN_H_ */