| 1 | /* @(#) pf_save.c 98/01/26 1.3 */ |
| 2 | /*************************************************************** |
| 3 | ** Save and Load Dictionary |
| 4 | ** for PForth based on 'C' |
| 5 | ** |
| 6 | ** Compile file based version or static data based version |
| 7 | ** depending on PF_NO_FILEIO switch. |
| 8 | ** |
| 9 | ** Author: Phil Burk |
| 10 | ** Copyright 1994 3DO, Phil Burk, Larry Polansky, David Rosenboom |
| 11 | ** |
| 12 | ** Permission to use, copy, modify, and/or distribute this |
| 13 | ** software for any purpose with or without fee is hereby granted. |
| 14 | ** |
| 15 | ** THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL |
| 16 | ** WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED |
| 17 | ** WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL |
| 18 | ** THE AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR |
| 19 | ** CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING |
| 20 | ** FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF |
| 21 | ** CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF |
| 22 | ** OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. |
| 23 | ** |
| 24 | **************************************************************** |
| 25 | ** 940225 PLB Fixed CodePtr save, was using NAMEREL instead of CODEREL |
| 26 | ** This would only work if the relative location |
| 27 | ** of names and code was the same when saved and reloaded. |
| 28 | ** 940228 PLB Added PF_NO_FILEIO version |
| 29 | ** 961204 PLB Added PF_STATIC_DIC |
| 30 | ** 000623 PLB Cast chars as ucell_t before shifting for 16 bit systems. |
| 31 | ***************************************************************/ |
| 32 | |
| 33 | #include <assert.h> |
| 34 | |
| 35 | #include "pf_all.h" |
| 36 | |
| 37 | /* If no File I/O, then force static dictionary. */ |
| 38 | #ifdef PF_NO_FILEIO |
| 39 | #ifndef PF_STATIC_DIC |
| 40 | #define PF_STATIC_DIC |
| 41 | #endif |
| 42 | #endif |
| 43 | |
| 44 | #ifdef PF_STATIC_DIC |
| 45 | #include "pfdicdat.h" |
| 46 | #endif |
| 47 | |
| 48 | /* |
| 49 | Dictionary File Format based on IFF standard. |
| 50 | The chunk IDs, sizes, and data values are all Big Endian in conformance with the IFF standard. |
| 51 | The dictionaries may be big or little endian. |
| 52 | 'FORM' |
| 53 | size |
| 54 | 'P4TH' - Form Identifier |
| 55 | |
| 56 | Chunks |
| 57 | 'P4DI' |
| 58 | size |
| 59 | struct DictionaryInfoChunk |
| 60 | |
| 61 | 'P4NM' |
| 62 | size |
| 63 | Name and Header portion of dictionary. (Big or Little Endian) (Optional) |
| 64 | |
| 65 | 'P4CD' |
| 66 | size |
| 67 | Code portion of dictionary. (Big or Little Endian) |
| 68 | */ |
| 69 | |
| 70 | |
| 71 | /***************************************************************/ |
| 72 | /* Endian-ness tools. */ |
| 73 | ucell_t ReadCellBigEndian( const uint8_t *addr ) |
| 74 | { |
| 75 | ucell_t temp = (ucell_t)addr[0]; |
| 76 | temp = (temp << 8) | ((ucell_t)addr[1]); |
| 77 | temp = (temp << 8) | ((ucell_t)addr[2]); |
| 78 | temp = (temp << 8) | ((ucell_t)addr[3]); |
| 79 | if( sizeof(ucell_t) == 8 ) |
| 80 | { |
| 81 | temp = (temp << 8) | ((ucell_t)addr[4]); |
| 82 | temp = (temp << 8) | ((ucell_t)addr[5]); |
| 83 | temp = (temp << 8) | ((ucell_t)addr[6]); |
| 84 | temp = (temp << 8) | ((ucell_t)addr[7]); |
| 85 | } |
| 86 | |
| 87 | return temp; |
| 88 | } |
| 89 | /***************************************************************/ |
| 90 | /* Endian-ness tools. */ |
| 91 | uint32_t Read32BigEndian( const uint8_t *addr ) |
| 92 | { |
| 93 | uint32_t temp = (uint32_t)addr[0]; |
| 94 | temp = (temp << 8) | ((uint32_t)addr[1]); |
| 95 | temp = (temp << 8) | ((uint32_t)addr[2]); |
| 96 | temp = (temp << 8) | ((uint32_t)addr[3]); |
| 97 | return temp; |
| 98 | } |
| 99 | |
| 100 | /***************************************************************/ |
| 101 | uint16_t Read16BigEndian( const uint8_t *addr ) |
| 102 | { |
| 103 | return (uint16_t) ((addr[0]<<8) | addr[1]); |
| 104 | } |
| 105 | |
| 106 | /***************************************************************/ |
| 107 | ucell_t ReadCellLittleEndian( const uint8_t *addr ) |
| 108 | { |
| 109 | ucell_t temp = 0; |
| 110 | if( sizeof(ucell_t) == 8 ) |
| 111 | { |
| 112 | temp = (temp << 8) | ((uint32_t)addr[7]); |
| 113 | temp = (temp << 8) | ((uint32_t)addr[6]); |
| 114 | temp = (temp << 8) | ((uint32_t)addr[5]); |
| 115 | temp = (temp << 8) | ((uint32_t)addr[4]); |
| 116 | } |
| 117 | temp = (temp << 8) | ((uint32_t)addr[3]); |
| 118 | temp = (temp << 8) | ((uint32_t)addr[2]); |
| 119 | temp = (temp << 8) | ((uint32_t)addr[1]); |
| 120 | temp = (temp << 8) | ((uint32_t)addr[0]); |
| 121 | return temp; |
| 122 | } |
| 123 | |
| 124 | /***************************************************************/ |
| 125 | uint32_t Read32LittleEndian( const uint8_t *addr ) |
| 126 | { |
| 127 | uint32_t temp = (uint32_t)addr[3]; |
| 128 | temp = (temp << 8) | ((uint32_t)addr[2]); |
| 129 | temp = (temp << 8) | ((uint32_t)addr[1]); |
| 130 | temp = (temp << 8) | ((uint32_t)addr[0]); |
| 131 | return temp; |
| 132 | } |
| 133 | |
| 134 | /***************************************************************/ |
| 135 | uint16_t Read16LittleEndian( const uint8_t *addr ) |
| 136 | { |
| 137 | const unsigned char *bp = (const unsigned char *) addr; |
| 138 | return (uint16_t) ((bp[1]<<8) | bp[0]); |
| 139 | } |
| 140 | |
| 141 | #ifdef PF_SUPPORT_FP |
| 142 | |
| 143 | /***************************************************************/ |
| 144 | static void ReverseCopyFloat( const PF_FLOAT *src, PF_FLOAT *dst ); |
| 145 | |
| 146 | static void ReverseCopyFloat( const PF_FLOAT *src, PF_FLOAT *dst ) |
| 147 | { |
| 148 | int i; |
| 149 | unsigned char *d = (unsigned char *) dst; |
| 150 | const unsigned char *s = (const unsigned char *) src; |
| 151 | |
| 152 | for( i=0; i<sizeof(PF_FLOAT); i++ ) |
| 153 | { |
| 154 | d[i] = s[sizeof(PF_FLOAT) - 1 - i]; |
| 155 | } |
| 156 | } |
| 157 | |
| 158 | /***************************************************************/ |
| 159 | void WriteFloatBigEndian( PF_FLOAT *addr, PF_FLOAT data ) |
| 160 | { |
| 161 | if( IsHostLittleEndian() ) |
| 162 | { |
| 163 | ReverseCopyFloat( &data, addr ); |
| 164 | } |
| 165 | else |
| 166 | { |
| 167 | *addr = data; |
| 168 | } |
| 169 | } |
| 170 | |
| 171 | /***************************************************************/ |
| 172 | PF_FLOAT ReadFloatBigEndian( const PF_FLOAT *addr ) |
| 173 | { |
| 174 | PF_FLOAT data; |
| 175 | if( IsHostLittleEndian() ) |
| 176 | { |
| 177 | ReverseCopyFloat( addr, &data ); |
| 178 | return data; |
| 179 | } |
| 180 | else |
| 181 | { |
| 182 | return *addr; |
| 183 | } |
| 184 | } |
| 185 | |
| 186 | /***************************************************************/ |
| 187 | void WriteFloatLittleEndian( PF_FLOAT *addr, PF_FLOAT data ) |
| 188 | { |
| 189 | if( IsHostLittleEndian() ) |
| 190 | { |
| 191 | *addr = data; |
| 192 | } |
| 193 | else |
| 194 | { |
| 195 | ReverseCopyFloat( &data, addr ); |
| 196 | } |
| 197 | } |
| 198 | |
| 199 | /***************************************************************/ |
| 200 | PF_FLOAT ReadFloatLittleEndian( const PF_FLOAT *addr ) |
| 201 | { |
| 202 | PF_FLOAT data; |
| 203 | if( IsHostLittleEndian() ) |
| 204 | { |
| 205 | return *addr; |
| 206 | } |
| 207 | else |
| 208 | { |
| 209 | ReverseCopyFloat( addr, &data ); |
| 210 | return data; |
| 211 | } |
| 212 | } |
| 213 | |
| 214 | #endif /* PF_SUPPORT_FP */ |
| 215 | |
| 216 | /***************************************************************/ |
| 217 | void WriteCellBigEndian( uint8_t *addr, ucell_t data ) |
| 218 | { |
| 219 | /* Write should be in order of increasing address |
| 220 | * to optimize for burst writes to DRAM. */ |
| 221 | if( sizeof(ucell_t) == 8 ) |
| 222 | { |
| 223 | *addr++ = (uint8_t) (data>>56); |
| 224 | *addr++ = (uint8_t) (data>>48); |
| 225 | *addr++ = (uint8_t) (data>>40); |
| 226 | *addr++ = (uint8_t) (data>>32); |
| 227 | } |
| 228 | *addr++ = (uint8_t) (data>>24); |
| 229 | *addr++ = (uint8_t) (data>>16); |
| 230 | *addr++ = (uint8_t) (data>>8); |
| 231 | *addr = (uint8_t) (data); |
| 232 | } |
| 233 | |
| 234 | /***************************************************************/ |
| 235 | void Write32BigEndian( uint8_t *addr, uint32_t data ) |
| 236 | { |
| 237 | *addr++ = (uint8_t) (data>>24); |
| 238 | *addr++ = (uint8_t) (data>>16); |
| 239 | *addr++ = (uint8_t) (data>>8); |
| 240 | *addr = (uint8_t) (data); |
| 241 | } |
| 242 | |
| 243 | /***************************************************************/ |
| 244 | void Write16BigEndian( uint8_t *addr, uint16_t data ) |
| 245 | { |
| 246 | *addr++ = (uint8_t) (data>>8); |
| 247 | *addr = (uint8_t) (data); |
| 248 | } |
| 249 | |
| 250 | /***************************************************************/ |
| 251 | void WriteCellLittleEndian( uint8_t *addr, ucell_t data ) |
| 252 | { |
| 253 | /* Write should be in order of increasing address |
| 254 | * to optimize for burst writes to DRAM. */ |
| 255 | if( sizeof(ucell_t) == 8 ) |
| 256 | { |
| 257 | *addr++ = (uint8_t) data; /* LSB at near end */ |
| 258 | data = data >> 8; |
| 259 | *addr++ = (uint8_t) data; |
| 260 | data = data >> 8; |
| 261 | *addr++ = (uint8_t) data; |
| 262 | data = data >> 8; |
| 263 | *addr++ = (uint8_t) data; |
| 264 | data = data >> 8; |
| 265 | } |
| 266 | *addr++ = (uint8_t) data; |
| 267 | data = data >> 8; |
| 268 | *addr++ = (uint8_t) data; |
| 269 | data = data >> 8; |
| 270 | *addr++ = (uint8_t) data; |
| 271 | data = data >> 8; |
| 272 | *addr = (uint8_t) data; |
| 273 | } |
| 274 | /***************************************************************/ |
| 275 | void Write32LittleEndian( uint8_t *addr, uint32_t data ) |
| 276 | { |
| 277 | *addr++ = (uint8_t) data; |
| 278 | data = data >> 8; |
| 279 | *addr++ = (uint8_t) data; |
| 280 | data = data >> 8; |
| 281 | *addr++ = (uint8_t) data; |
| 282 | data = data >> 8; |
| 283 | *addr = (uint8_t) data; |
| 284 | } |
| 285 | |
| 286 | /***************************************************************/ |
| 287 | void Write16LittleEndian( uint8_t *addr, uint16_t data ) |
| 288 | { |
| 289 | *addr++ = (uint8_t) data; |
| 290 | data = data >> 8; |
| 291 | *addr = (uint8_t) data; |
| 292 | } |
| 293 | |
| 294 | /***************************************************************/ |
| 295 | /* Return 1 if host CPU is Little Endian */ |
| 296 | int IsHostLittleEndian( void ) |
| 297 | { |
| 298 | static int gEndianCheck = 1; |
| 299 | unsigned char *bp = (unsigned char *) &gEndianCheck; |
| 300 | return (int) (*bp); /* Return byte pointed to by address. If LSB then == 1 */ |
| 301 | } |
| 302 | |
| 303 | #if defined(PF_NO_FILEIO) || defined(PF_NO_SHELL) |
| 304 | |
| 305 | cell_t ffSaveForth( const char *FileName, ExecToken EntryPoint, cell_t NameSize, cell_t CodeSize) |
| 306 | { |
| 307 | TOUCH(FileName); |
| 308 | TOUCH(EntryPoint); |
| 309 | TOUCH(NameSize); |
| 310 | TOUCH(CodeSize); |
| 311 | |
| 312 | pfReportError("ffSaveForth", PF_ERR_NOT_SUPPORTED); |
| 313 | return -1; |
| 314 | } |
| 315 | |
| 316 | #else /* PF_NO_FILEIO or PF_NO_SHELL */ |
| 317 | |
| 318 | /***************************************************************/ |
| 319 | static int Write32ToFile( FileStream *fid, uint32_t Val ) |
| 320 | { |
| 321 | size_t numw; |
| 322 | uint8_t pad[4]; |
| 323 | |
| 324 | Write32BigEndian(pad,Val); |
| 325 | numw = sdWriteFile( pad, 1, sizeof(pad), fid ); |
| 326 | if( numw != sizeof(pad) ) return -1; |
| 327 | return 0; |
| 328 | } |
| 329 | |
| 330 | /***************************************************************/ |
| 331 | static cell_t WriteChunkToFile( FileStream *fid, cell_t ID, char *Data, int32_t NumBytes ) |
| 332 | { |
| 333 | cell_t numw; |
| 334 | cell_t EvenNumW; |
| 335 | |
| 336 | EvenNumW = EVENUP(NumBytes); |
| 337 | |
| 338 | assert(ID <= UINT32_MAX); |
| 339 | if( Write32ToFile( fid, (uint32_t)ID ) < 0 ) goto error; |
| 340 | assert(EvenNumW <= UINT32_MAX); |
| 341 | if( Write32ToFile( fid, (uint32_t)EvenNumW ) < 0 ) goto error; |
| 342 | |
| 343 | numw = sdWriteFile( Data, 1, EvenNumW, fid ); |
| 344 | if( numw != EvenNumW ) goto error; |
| 345 | return 0; |
| 346 | error: |
| 347 | pfReportError("WriteChunkToFile", PF_ERR_WRITE_FILE); |
| 348 | return -1; |
| 349 | } |
| 350 | |
| 351 | /* Convert dictionary info chunk between native and on-disk (big-endian). */ |
| 352 | static void |
| 353 | convertDictionaryInfoWrite (DictionaryInfoChunk *sd) |
| 354 | { |
| 355 | /* Convert all fields in DictionaryInfoChunk from Native to BigEndian. |
| 356 | * This assumes they are all 32-bit integers. |
| 357 | */ |
| 358 | int i; |
| 359 | uint32_t *p = (uint32_t *) sd; |
| 360 | for (i=0; i<((int)(sizeof(*sd)/sizeof(uint32_t))); i++) |
| 361 | { |
| 362 | Write32BigEndian( (uint8_t *)&p[i], p[i] ); |
| 363 | } |
| 364 | } |
| 365 | |
| 366 | static void |
| 367 | convertDictionaryInfoRead (DictionaryInfoChunk *sd) |
| 368 | { |
| 369 | /* Convert all fields in structure from BigEndian to Native. */ |
| 370 | int i; |
| 371 | uint32_t *p = (uint32_t *) sd; |
| 372 | for (i=0; i<((int)(sizeof(*sd)/sizeof(uint32_t))); i++) |
| 373 | { |
| 374 | p[i] = Read32BigEndian( (uint8_t *)&p[i] ); |
| 375 | } |
| 376 | } |
| 377 | |
| 378 | /**************************************************************** |
| 379 | ** Save Dictionary in File. |
| 380 | ** If EntryPoint is NULL, save as development environment. |
| 381 | ** If EntryPoint is non-NULL, save as turnKey environment with no names. |
| 382 | */ |
| 383 | cell_t ffSaveForth( const char *FileName, ExecToken EntryPoint, cell_t NameSize, cell_t CodeSize) |
| 384 | { |
| 385 | FileStream *fid; |
| 386 | DictionaryInfoChunk SD; |
| 387 | uint32_t FormSize; |
| 388 | uint32_t NameChunkSize = 0; |
| 389 | uint32_t CodeChunkSize; |
| 390 | uint32_t relativeCodePtr; |
| 391 | |
| 392 | fid = sdOpenFile( FileName, "wb" ); |
| 393 | if( fid == NULL ) |
| 394 | { |
| 395 | pfReportError("pfSaveDictionary", PF_ERR_OPEN_FILE); |
| 396 | return -1; |
| 397 | } |
| 398 | |
| 399 | /* Save in uninitialized form. */ |
| 400 | pfExecIfDefined("AUTO.TERM"); |
| 401 | |
| 402 | /* Write FORM Header ---------------------------- */ |
| 403 | if( Write32ToFile( fid, ID_FORM ) < 0 ) goto error; |
| 404 | if( Write32ToFile( fid, 0 ) < 0 ) goto error; |
| 405 | if( Write32ToFile( fid, ID_P4TH ) < 0 ) goto error; |
| 406 | |
| 407 | /* Write P4DI Dictionary Info ------------------ */ |
| 408 | SD.sd_Version = PF_FILE_VERSION; |
| 409 | |
| 410 | relativeCodePtr = ABS_TO_CODEREL(gCurrentDictionary->dic_CodePtr.Byte); /* 940225 */ |
| 411 | SD.sd_RelCodePtr = relativeCodePtr; |
| 412 | SD.sd_UserStackSize = sizeof(cell_t) * (gCurrentTask->td_StackBase - gCurrentTask->td_StackLimit); |
| 413 | SD.sd_ReturnStackSize = sizeof(cell_t) * (gCurrentTask->td_ReturnBase - gCurrentTask->td_ReturnLimit); |
| 414 | SD.sd_NumPrimitives = gNumPrimitives; /* Must match compiled dictionary. */ |
| 415 | |
| 416 | #ifdef PF_SUPPORT_FP |
| 417 | SD.sd_FloatSize = sizeof(PF_FLOAT); /* Must match compiled dictionary. */ |
| 418 | #else |
| 419 | SD.sd_FloatSize = 0; |
| 420 | #endif |
| 421 | |
| 422 | SD.sd_CellSize = sizeof(cell_t); |
| 423 | |
| 424 | /* Set bit that specifies whether dictionary is BIG or LITTLE Endian. */ |
| 425 | { |
| 426 | #if defined(PF_BIG_ENDIAN_DIC) |
| 427 | int eflag = SD_F_BIG_ENDIAN_DIC; |
| 428 | #elif defined(PF_LITTLE_ENDIAN_DIC) |
| 429 | int eflag = 0; |
| 430 | #else |
| 431 | int eflag = IsHostLittleEndian() ? 0 : SD_F_BIG_ENDIAN_DIC; |
| 432 | #endif |
| 433 | SD.sd_Flags = eflag; |
| 434 | } |
| 435 | |
| 436 | if( EntryPoint ) |
| 437 | { |
| 438 | SD.sd_EntryPoint = EntryPoint; /* Turnkey! */ |
| 439 | } |
| 440 | else |
| 441 | { |
| 442 | SD.sd_EntryPoint = 0; |
| 443 | } |
| 444 | |
| 445 | /* Do we save names? */ |
| 446 | if( NameSize == 0 ) |
| 447 | { |
| 448 | SD.sd_RelContext = 0; |
| 449 | SD.sd_RelHeaderPtr = 0; |
| 450 | SD.sd_NameSize = 0; |
| 451 | } |
| 452 | else |
| 453 | { |
| 454 | uint32_t relativeHeaderPtr; |
| 455 | /* Development mode. */ |
| 456 | SD.sd_RelContext = ABS_TO_NAMEREL(gVarContext); |
| 457 | relativeHeaderPtr = ABS_TO_NAMEREL(gCurrentDictionary->dic_HeaderPtr); |
| 458 | SD.sd_RelHeaderPtr = relativeHeaderPtr; |
| 459 | |
| 460 | /* How much real name space is there? */ |
| 461 | NameChunkSize = QUADUP(relativeHeaderPtr); /* Align */ |
| 462 | |
| 463 | /* NameSize must be 0 or greater than NameChunkSize + 1K */ |
| 464 | NameSize = QUADUP(NameSize); /* Align */ |
| 465 | if( NameSize > 0 ) |
| 466 | { |
| 467 | NameSize = MAX( (ucell_t)NameSize, (NameChunkSize + 1024) ); |
| 468 | } |
| 469 | SD.sd_NameSize = NameSize; |
| 470 | } |
| 471 | |
| 472 | /* How much real code is there? */ |
| 473 | CodeChunkSize = QUADUP(relativeCodePtr); |
| 474 | CodeSize = QUADUP(CodeSize); /* Align */ |
| 475 | CodeSize = MAX( (ucell_t)CodeSize, (CodeChunkSize + 2048) ); |
| 476 | SD.sd_CodeSize = CodeSize; |
| 477 | |
| 478 | |
| 479 | convertDictionaryInfoWrite (&SD); |
| 480 | |
| 481 | if( WriteChunkToFile( fid, ID_P4DI, (char *) &SD, sizeof(DictionaryInfoChunk) ) < 0 ) goto error; |
| 482 | |
| 483 | /* Write Name Fields if NameSize non-zero ------- */ |
| 484 | if( NameSize > 0 ) |
| 485 | { |
| 486 | if( WriteChunkToFile( fid, ID_P4NM, (char *) NAME_BASE, |
| 487 | NameChunkSize ) < 0 ) goto error; |
| 488 | } |
| 489 | |
| 490 | /* Write Code Fields ---------------------------- */ |
| 491 | if( WriteChunkToFile( fid, ID_P4CD, (char *) CODE_BASE, |
| 492 | CodeChunkSize ) < 0 ) goto error; |
| 493 | |
| 494 | FormSize = (uint32_t) sdTellFile( fid ) - 8; |
| 495 | sdSeekFile( fid, 4, PF_SEEK_SET ); |
| 496 | if( Write32ToFile( fid, FormSize ) < 0 ) goto error; |
| 497 | |
| 498 | sdCloseFile( fid ); |
| 499 | |
| 500 | /* Restore initialization. */ |
| 501 | pfExecIfDefined("AUTO.INIT"); |
| 502 | return 0; |
| 503 | |
| 504 | error: |
| 505 | sdSeekFile( fid, 0, PF_SEEK_SET ); |
| 506 | Write32ToFile( fid, ID_BADF ); /* Mark file as bad. */ |
| 507 | sdCloseFile( fid ); |
| 508 | |
| 509 | /* Restore initialization. */ |
| 510 | pfExecIfDefined("AUTO.INIT"); |
| 511 | |
| 512 | return -1; |
| 513 | } |
| 514 | |
| 515 | #endif /* !PF_NO_FILEIO and !PF_NO_SHELL */ |
| 516 | |
| 517 | |
| 518 | #ifndef PF_NO_FILEIO |
| 519 | |
| 520 | /***************************************************************/ |
| 521 | static int32_t Read32FromFile( FileStream *fid, uint32_t *ValPtr ) |
| 522 | { |
| 523 | cell_t numr; |
| 524 | uint8_t pad[4]; |
| 525 | numr = sdReadFile( pad, 1, sizeof(pad), fid ); |
| 526 | if( numr != sizeof(pad) ) return -1; |
| 527 | *ValPtr = Read32BigEndian( pad ); |
| 528 | return 0; |
| 529 | } |
| 530 | |
| 531 | /***************************************************************/ |
| 532 | PForthDictionary pfLoadDictionary( const char *FileName, ExecToken *EntryPointPtr ) |
| 533 | { |
| 534 | pfDictionary_t *dic = NULL; |
| 535 | FileStream *fid; |
| 536 | DictionaryInfoChunk *sd; |
| 537 | uint32_t ChunkID; |
| 538 | uint32_t ChunkSize; |
| 539 | uint32_t FormSize; |
| 540 | uint32_t BytesLeft; |
| 541 | cell_t numr; |
| 542 | int isDicBigEndian; |
| 543 | |
| 544 | DBUG(("pfLoadDictionary( %s )\n", FileName )); |
| 545 | |
| 546 | /* Open file. */ |
| 547 | fid = sdOpenFile( FileName, "rb" ); |
| 548 | if( fid == NULL ) |
| 549 | { |
| 550 | pfReportError("pfLoadDictionary", PF_ERR_OPEN_FILE); |
| 551 | goto xt_error; |
| 552 | } |
| 553 | |
| 554 | /* Read FORM, Size, ID */ |
| 555 | if (Read32FromFile( fid, &ChunkID ) < 0) goto read_error; |
| 556 | if( ChunkID != ID_FORM ) |
| 557 | { |
| 558 | pfReportError("pfLoadDictionary", PF_ERR_WRONG_FILE); |
| 559 | goto error; |
| 560 | } |
| 561 | |
| 562 | if (Read32FromFile( fid, &FormSize ) < 0) goto read_error; |
| 563 | BytesLeft = FormSize; |
| 564 | |
| 565 | if (Read32FromFile( fid, &ChunkID ) < 0) goto read_error; |
| 566 | BytesLeft -= 4; |
| 567 | if( ChunkID != ID_P4TH ) |
| 568 | { |
| 569 | pfReportError("pfLoadDictionary", PF_ERR_BAD_FILE); |
| 570 | goto error; |
| 571 | } |
| 572 | |
| 573 | /* Scan and parse all chunks in file. */ |
| 574 | while( BytesLeft > 0 ) |
| 575 | { |
| 576 | if (Read32FromFile( fid, &ChunkID ) < 0) goto read_error; |
| 577 | if (Read32FromFile( fid, &ChunkSize ) < 0) goto read_error; |
| 578 | BytesLeft -= 8; |
| 579 | |
| 580 | DBUG(("ChunkID = %4s, Size = %d\n", (char *)&ChunkID, ChunkSize )); |
| 581 | |
| 582 | switch( ChunkID ) |
| 583 | { |
| 584 | case ID_P4DI: |
| 585 | sd = (DictionaryInfoChunk *) pfAllocMem( ChunkSize ); |
| 586 | if( sd == NULL ) goto nomem_error; |
| 587 | |
| 588 | numr = sdReadFile( sd, 1, ChunkSize, fid ); |
| 589 | if( numr != ChunkSize ) goto read_error; |
| 590 | BytesLeft -= ChunkSize; |
| 591 | |
| 592 | convertDictionaryInfoRead (sd); |
| 593 | |
| 594 | isDicBigEndian = sd->sd_Flags & SD_F_BIG_ENDIAN_DIC; |
| 595 | |
| 596 | if( !gVarQuiet ) |
| 597 | { |
| 598 | MSG("pForth loading dictionary from file "); MSG(FileName); |
| 599 | EMIT_CR; |
| 600 | MSG_NUM_D(" File format version is ", sd->sd_Version ); |
| 601 | MSG_NUM_D(" Name space size = ", sd->sd_NameSize ); |
| 602 | MSG_NUM_D(" Code space size = ", sd->sd_CodeSize ); |
| 603 | MSG_NUM_D(" Entry Point = ", sd->sd_EntryPoint ); |
| 604 | MSG_NUM_D(" Cell Size = ", sd->sd_CellSize ); |
| 605 | MSG( (isDicBigEndian ? " Big Endian Dictionary" : |
| 606 | " Little Endian Dictionary") ); |
| 607 | if( isDicBigEndian == IsHostLittleEndian() ) MSG(" !!!!"); |
| 608 | EMIT_CR; |
| 609 | } |
| 610 | |
| 611 | if( sd->sd_Version > PF_FILE_VERSION ) |
| 612 | { |
| 613 | pfReportError("pfLoadDictionary", PF_ERR_VERSION_FUTURE ); |
| 614 | goto error; |
| 615 | } |
| 616 | if( sd->sd_Version < PF_EARLIEST_FILE_VERSION ) |
| 617 | { |
| 618 | pfReportError("pfLoadDictionary", PF_ERR_VERSION_PAST ); |
| 619 | goto error; |
| 620 | } |
| 621 | if( sd->sd_CellSize != sizeof(cell_t) ) |
| 622 | { |
| 623 | pfReportError("pfLoadDictionary", PF_ERR_CELL_SIZE_CONFLICT ); |
| 624 | goto error; |
| 625 | } |
| 626 | if( sd->sd_NumPrimitives > NUM_PRIMITIVES ) |
| 627 | { |
| 628 | pfReportError("pfLoadDictionary", PF_ERR_NOT_SUPPORTED ); |
| 629 | goto error; |
| 630 | } |
| 631 | |
| 632 | /* Check to make sure that EndianNess of dictionary matches mode of pForth. */ |
| 633 | #if defined(PF_BIG_ENDIAN_DIC) |
| 634 | if(isDicBigEndian == 0) |
| 635 | #elif defined(PF_LITTLE_ENDIAN_DIC) |
| 636 | if(isDicBigEndian == 1) |
| 637 | #else |
| 638 | if( isDicBigEndian == IsHostLittleEndian() ) |
| 639 | #endif |
| 640 | { |
| 641 | pfReportError("pfLoadDictionary", PF_ERR_ENDIAN_CONFLICT ); |
| 642 | goto error; |
| 643 | } |
| 644 | |
| 645 | /* Check for compatible float size. */ |
| 646 | #ifdef PF_SUPPORT_FP |
| 647 | if( sd->sd_FloatSize != sizeof(PF_FLOAT) ) |
| 648 | #else |
| 649 | if( sd->sd_FloatSize != 0 ) |
| 650 | #endif |
| 651 | { |
| 652 | pfReportError("pfLoadDictionary", PF_ERR_FLOAT_CONFLICT ); |
| 653 | goto error; |
| 654 | } |
| 655 | |
| 656 | dic = pfCreateDictionary( sd->sd_NameSize, sd->sd_CodeSize ); |
| 657 | if( dic == NULL ) goto nomem_error; |
| 658 | gCurrentDictionary = dic; |
| 659 | if( sd->sd_NameSize > 0 ) |
| 660 | { |
| 661 | gVarContext = NAMEREL_TO_ABS(sd->sd_RelContext); /* Restore context. */ |
| 662 | gCurrentDictionary->dic_HeaderPtr = (ucell_t)(uint8_t *) |
| 663 | NAMEREL_TO_ABS(sd->sd_RelHeaderPtr); |
| 664 | } |
| 665 | else |
| 666 | { |
| 667 | gVarContext = 0; |
| 668 | gCurrentDictionary->dic_HeaderPtr = (ucell_t)NULL; |
| 669 | } |
| 670 | gCurrentDictionary->dic_CodePtr.Byte = (uint8_t *) CODEREL_TO_ABS(sd->sd_RelCodePtr); |
| 671 | gNumPrimitives = sd->sd_NumPrimitives; /* Must match compiled dictionary. */ |
| 672 | /* Pass EntryPoint back to caller. */ |
| 673 | if( EntryPointPtr != NULL ) *EntryPointPtr = sd->sd_EntryPoint; |
| 674 | pfFreeMem(sd); |
| 675 | break; |
| 676 | |
| 677 | case ID_P4NM: |
| 678 | #ifdef PF_NO_SHELL |
| 679 | pfReportError("pfLoadDictionary", PF_ERR_NO_SHELL ); |
| 680 | goto error; |
| 681 | #else |
| 682 | if( NAME_BASE == 0 ) |
| 683 | { |
| 684 | pfReportError("pfLoadDictionary", PF_ERR_NO_NAMES ); |
| 685 | goto error; |
| 686 | } |
| 687 | if( gCurrentDictionary == NULL ) |
| 688 | { |
| 689 | pfReportError("pfLoadDictionary", PF_ERR_BAD_FILE ); |
| 690 | goto error; |
| 691 | } |
| 692 | if( ChunkSize > NAME_SIZE ) |
| 693 | { |
| 694 | pfReportError("pfLoadDictionary", PF_ERR_TOO_BIG); |
| 695 | goto error; |
| 696 | } |
| 697 | numr = sdReadFile( (char *) NAME_BASE, 1, ChunkSize, fid ); |
| 698 | if( numr != ChunkSize ) goto read_error; |
| 699 | BytesLeft -= ChunkSize; |
| 700 | #endif /* PF_NO_SHELL */ |
| 701 | break; |
| 702 | |
| 703 | case ID_P4CD: |
| 704 | if( gCurrentDictionary == NULL ) |
| 705 | { |
| 706 | pfReportError("pfLoadDictionary", PF_ERR_BAD_FILE ); |
| 707 | goto error; |
| 708 | } |
| 709 | if( ChunkSize > CODE_SIZE ) |
| 710 | { |
| 711 | pfReportError("pfLoadDictionary", PF_ERR_TOO_BIG); |
| 712 | goto error; |
| 713 | } |
| 714 | numr = sdReadFile( (uint8_t *) CODE_BASE, 1, ChunkSize, fid ); |
| 715 | if( numr != ChunkSize ) goto read_error; |
| 716 | BytesLeft -= ChunkSize; |
| 717 | break; |
| 718 | |
| 719 | default: |
| 720 | pfReportError("pfLoadDictionary", PF_ERR_BAD_FILE ); |
| 721 | sdSeekFile( fid, ChunkSize, PF_SEEK_CUR ); |
| 722 | break; |
| 723 | } |
| 724 | } |
| 725 | |
| 726 | sdCloseFile( fid ); |
| 727 | |
| 728 | if( NAME_BASE != 0) |
| 729 | { |
| 730 | cell_t Result; |
| 731 | /* Find special words in dictionary for global XTs. */ |
| 732 | if( (Result = FindSpecialXTs()) < 0 ) |
| 733 | { |
| 734 | pfReportError("pfLoadDictionary: FindSpecialXTs", (Err)Result); |
| 735 | goto error; |
| 736 | } |
| 737 | } |
| 738 | |
| 739 | DBUG(("pfLoadDictionary: return %p\n", dic)); |
| 740 | return (PForthDictionary) dic; |
| 741 | |
| 742 | nomem_error: |
| 743 | pfReportError("pfLoadDictionary", PF_ERR_NO_MEM); |
| 744 | sdCloseFile( fid ); |
| 745 | return NULL; |
| 746 | |
| 747 | read_error: |
| 748 | pfReportError("pfLoadDictionary", PF_ERR_READ_FILE); |
| 749 | error: |
| 750 | sdCloseFile( fid ); |
| 751 | xt_error: |
| 752 | return NULL; |
| 753 | } |
| 754 | |
| 755 | #else |
| 756 | |
| 757 | PForthDictionary pfLoadDictionary( const char *FileName, ExecToken *EntryPointPtr ) |
| 758 | { |
| 759 | (void) FileName; |
| 760 | (void) EntryPointPtr; |
| 761 | return NULL; |
| 762 | } |
| 763 | #endif /* !PF_NO_FILEIO */ |
| 764 | |
| 765 | |
| 766 | |
| 767 | /***************************************************************/ |
| 768 | PForthDictionary pfLoadStaticDictionary( void ) |
| 769 | { |
| 770 | #ifdef PF_STATIC_DIC |
| 771 | cell_t Result; |
| 772 | pfDictionary_t *dic; |
| 773 | cell_t NewNameSize, NewCodeSize; |
| 774 | |
| 775 | if( IF_LITTLE_ENDIAN != IsHostLittleEndian() ) |
| 776 | { |
| 777 | MSG( (IF_LITTLE_ENDIAN ? |
| 778 | "Little Endian Dictionary on " : |
| 779 | "Big Endian Dictionary on ") ); |
| 780 | MSG( (IsHostLittleEndian() ? |
| 781 | "Little Endian CPU" : |
| 782 | "Big Endian CPU") ); |
| 783 | EMIT_CR; |
| 784 | } |
| 785 | |
| 786 | /* Check to make sure that EndianNess of dictionary matches mode of pForth. */ |
| 787 | #if defined(PF_BIG_ENDIAN_DIC) |
| 788 | if(IF_LITTLE_ENDIAN == 1) |
| 789 | #elif defined(PF_LITTLE_ENDIAN_DIC) |
| 790 | if(IF_LITTLE_ENDIAN == 0) |
| 791 | #else /* Code is native endian! */ |
| 792 | if( IF_LITTLE_ENDIAN != IsHostLittleEndian() ) |
| 793 | #endif |
| 794 | { |
| 795 | pfReportError("pfLoadStaticDictionary", PF_ERR_ENDIAN_CONFLICT ); |
| 796 | goto error; |
| 797 | } |
| 798 | |
| 799 | |
| 800 | #ifndef PF_EXTRA_HEADERS |
| 801 | #define PF_EXTRA_HEADERS (20000) |
| 802 | #endif |
| 803 | #ifndef PF_EXTRA_CODE |
| 804 | #define PF_EXTRA_CODE (40000) |
| 805 | #endif |
| 806 | |
| 807 | /* Copy static const data to allocated dictionaries. */ |
| 808 | NewNameSize = sizeof(MinDicNames) + PF_EXTRA_HEADERS; |
| 809 | NewCodeSize = sizeof(MinDicCode) + PF_EXTRA_CODE; |
| 810 | |
| 811 | DBUG_NUM_D( "static dic name size = ", NewNameSize ); |
| 812 | DBUG_NUM_D( "static dic code size = ", NewCodeSize ); |
| 813 | |
| 814 | gCurrentDictionary = dic = pfCreateDictionary( NewNameSize, NewCodeSize ); |
| 815 | if( !dic ) goto nomem_error; |
| 816 | |
| 817 | pfCopyMemory( (uint8_t *) dic->dic_HeaderBase, MinDicNames, sizeof(MinDicNames) ); |
| 818 | pfCopyMemory( (uint8_t *) dic->dic_CodeBase, MinDicCode, sizeof(MinDicCode) ); |
| 819 | DBUG(("Static data copied to newly allocated dictionaries.\n")); |
| 820 | |
| 821 | dic->dic_CodePtr.Byte = (uint8_t *) CODEREL_TO_ABS(CODEPTR); |
| 822 | gNumPrimitives = NUM_PRIMITIVES; |
| 823 | |
| 824 | if( NAME_BASE != 0) |
| 825 | { |
| 826 | /* Setup name space. */ |
| 827 | dic->dic_HeaderPtr = (ucell_t)(uint8_t *) NAMEREL_TO_ABS(HEADERPTR); |
| 828 | gVarContext = NAMEREL_TO_ABS(RELCONTEXT); /* Restore context. */ |
| 829 | |
| 830 | /* Find special words in dictionary for global XTs. */ |
| 831 | if( (Result = FindSpecialXTs()) < 0 ) |
| 832 | { |
| 833 | pfReportError("pfLoadStaticDictionary: FindSpecialXTs", Result); |
| 834 | goto error; |
| 835 | } |
| 836 | } |
| 837 | |
| 838 | return (PForthDictionary) dic; |
| 839 | |
| 840 | error: |
| 841 | return NULL; |
| 842 | |
| 843 | nomem_error: |
| 844 | pfReportError("pfLoadStaticDictionary", PF_ERR_NO_MEM); |
| 845 | #endif /* PF_STATIC_DIC */ |
| 846 | |
| 847 | return NULL; |
| 848 | } |
| 849 | |