| 1 | /* @(#) pf_core.c 98/01/28 1.5 */ |
| 2 | /*************************************************************** |
| 3 | ** Forth based on 'C' |
| 4 | ** |
| 5 | ** This file has the main entry points to the pForth library. |
| 6 | ** |
| 7 | ** Author: Phil Burk |
| 8 | ** Copyright 1994 3DO, Phil Burk, Larry Polansky, David Rosenboom |
| 9 | ** |
| 10 | ** The pForth software code is dedicated to the public domain, |
| 11 | ** and any third party may reproduce, distribute and modify |
| 12 | ** the pForth software code or any derivative works thereof |
| 13 | ** without any compensation or license. The pForth software |
| 14 | ** code is provided on an "as is" basis without any warranty |
| 15 | ** of any kind, including, without limitation, the implied |
| 16 | ** warranties of merchantability and fitness for a particular |
| 17 | ** purpose and their equivalents under the laws of any jurisdiction. |
| 18 | ** |
| 19 | **************************************************************** |
| 20 | ** 940502 PLB Creation. |
| 21 | ** 940505 PLB More macros. |
| 22 | ** 940509 PLB Moved all stack handling into inner interpreter. |
| 23 | ** Added Create, Colon, Semicolon, HNumberQ, etc. |
| 24 | ** 940510 PLB Got inner interpreter working with secondaries. |
| 25 | ** Added (LITERAL). Compiles colon definitions. |
| 26 | ** 940511 PLB Added conditionals, LITERAL, CREATE DOES> |
| 27 | ** 940512 PLB Added DO LOOP DEFER, fixed R> |
| 28 | ** 940520 PLB Added INCLUDE |
| 29 | ** 940521 PLB Added NUMBER? |
| 30 | ** 940930 PLB Outer Interpreter now uses deferred NUMBER? |
| 31 | ** 941005 PLB Added ANSI locals, LEAVE, modularised |
| 32 | ** 950320 RDG Added underflow checking for FP stack |
| 33 | ** 970702 PLB Added STACK_SAFETY to FP stack size. |
| 34 | ***************************************************************/ |
| 35 | |
| 36 | #include "pf_all.h" |
| 37 | |
| 38 | /*************************************************************** |
| 39 | ** Global Data |
| 40 | ***************************************************************/ |
| 41 | |
| 42 | char gScratch[TIB_SIZE]; |
| 43 | pfTaskData_t *gCurrentTask = NULL; |
| 44 | pfDictionary_t *gCurrentDictionary; |
| 45 | cell_t gNumPrimitives; |
| 46 | |
| 47 | ExecToken gLocalCompiler_XT; /* custom compiler for local variables */ |
| 48 | ExecToken gNumberQ_XT; /* XT of NUMBER? */ |
| 49 | ExecToken gQuitP_XT; /* XT of (QUIT) */ |
| 50 | ExecToken gAcceptP_XT; /* XT of ACCEPT */ |
| 51 | |
| 52 | /* Depth of data stack when colon called. */ |
| 53 | cell_t gDepthAtColon; |
| 54 | |
| 55 | /* Global Forth variables. */ |
| 56 | cell_t gVarContext; /* Points to last name field. */ |
| 57 | cell_t gVarState; /* 1 if compiling. */ |
| 58 | cell_t gVarBase; /* Numeric Base. */ |
| 59 | cell_t gVarEcho; /* Echo input. */ |
| 60 | cell_t gVarTraceLevel; /* Trace Level for Inner Interpreter. */ |
| 61 | cell_t gVarTraceStack; /* Dump Stack each time if true. */ |
| 62 | cell_t gVarTraceFlags; /* Enable various internal debug messages. */ |
| 63 | cell_t gVarQuiet; /* Suppress unnecessary messages, OK, etc. */ |
| 64 | cell_t gVarReturnCode; /* Returned to caller of Forth, eg. UNIX shell. */ |
| 65 | |
| 66 | /* data for INCLUDE that allows multiple nested files. */ |
| 67 | IncludeFrame gIncludeStack[MAX_INCLUDE_DEPTH]; |
| 68 | cell_t gIncludeIndex; |
| 69 | |
| 70 | static void pfResetForthTask( void ); |
| 71 | static void pfInit( void ); |
| 72 | static void pfTerm( void ); |
| 73 | |
| 74 | /* TODO move to pf_config.h header. */ |
| 75 | #define DEFAULT_RETURN_DEPTH (512) |
| 76 | #define DEFAULT_USER_DEPTH (512) |
| 77 | #define DEFAULT_HEADER_SIZE (120000) |
| 78 | #define DEFAULT_CODE_SIZE (300000) |
| 79 | |
| 80 | /* Initialize globals in a function to simplify loading on |
| 81 | * embedded systems which may not support initialization of data section. |
| 82 | */ |
| 83 | static void pfInit( void ) |
| 84 | { |
| 85 | /* all zero */ |
| 86 | gCurrentTask = NULL; |
| 87 | gCurrentDictionary = NULL; |
| 88 | gNumPrimitives = 0; |
| 89 | gLocalCompiler_XT = 0; |
| 90 | gVarContext = (cell_t)NULL; /* Points to last name field. */ |
| 91 | gVarState = 0; /* 1 if compiling. */ |
| 92 | gVarEcho = 0; /* Echo input. */ |
| 93 | gVarTraceLevel = 0; /* Trace Level for Inner Interpreter. */ |
| 94 | gVarTraceFlags = 0; /* Enable various internal debug messages. */ |
| 95 | gVarReturnCode = 0; /* Returned to caller of Forth, eg. UNIX shell. */ |
| 96 | gIncludeIndex = 0; |
| 97 | |
| 98 | /* non-zero */ |
| 99 | gVarBase = 10; /* Numeric Base. */ |
| 100 | gDepthAtColon = DEPTH_AT_COLON_INVALID; |
| 101 | gVarTraceStack = 1; |
| 102 | |
| 103 | pfInitMemoryAllocator(); |
| 104 | ioInit(); |
| 105 | } |
| 106 | static void pfTerm( void ) |
| 107 | { |
| 108 | ioTerm(); |
| 109 | } |
| 110 | |
| 111 | /*************************************************************** |
| 112 | ** Task Management |
| 113 | ***************************************************************/ |
| 114 | |
| 115 | void pfDeleteTask( PForthTask task ) |
| 116 | { |
| 117 | pfTaskData_t *cftd = (pfTaskData_t *)task; |
| 118 | FREE_VAR( cftd->td_ReturnLimit ); |
| 119 | FREE_VAR( cftd->td_StackLimit ); |
| 120 | pfFreeMem( cftd ); |
| 121 | } |
| 122 | |
| 123 | /* Allocate some extra cells to protect against mild stack underflows. */ |
| 124 | #define STACK_SAFETY (8) |
| 125 | PForthTask pfCreateTask( cell_t UserStackDepth, cell_t ReturnStackDepth ) |
| 126 | { |
| 127 | pfTaskData_t *cftd; |
| 128 | |
| 129 | cftd = ( pfTaskData_t * ) pfAllocMem( sizeof( pfTaskData_t ) ); |
| 130 | if( !cftd ) goto nomem; |
| 131 | pfSetMemory( cftd, 0, sizeof( pfTaskData_t )); |
| 132 | |
| 133 | /* Allocate User Stack */ |
| 134 | cftd->td_StackLimit = (cell_t *) pfAllocMem((ucell_t)(sizeof(cell_t) * |
| 135 | (UserStackDepth + STACK_SAFETY))); |
| 136 | if( !cftd->td_StackLimit ) goto nomem; |
| 137 | cftd->td_StackBase = cftd->td_StackLimit + UserStackDepth; |
| 138 | cftd->td_StackPtr = cftd->td_StackBase; |
| 139 | |
| 140 | /* Allocate Return Stack */ |
| 141 | cftd->td_ReturnLimit = (cell_t *) pfAllocMem((ucell_t)(sizeof(cell_t) * ReturnStackDepth) ); |
| 142 | if( !cftd->td_ReturnLimit ) goto nomem; |
| 143 | cftd->td_ReturnBase = cftd->td_ReturnLimit + ReturnStackDepth; |
| 144 | cftd->td_ReturnPtr = cftd->td_ReturnBase; |
| 145 | |
| 146 | /* Allocate Float Stack */ |
| 147 | #ifdef PF_SUPPORT_FP |
| 148 | /* Allocate room for as many Floats as we do regular data. */ |
| 149 | cftd->td_FloatStackLimit = (PF_FLOAT *) pfAllocMem((ucell_t)(sizeof(PF_FLOAT) * |
| 150 | (UserStackDepth + STACK_SAFETY))); |
| 151 | if( !cftd->td_FloatStackLimit ) goto nomem; |
| 152 | cftd->td_FloatStackBase = cftd->td_FloatStackLimit + UserStackDepth; |
| 153 | cftd->td_FloatStackPtr = cftd->td_FloatStackBase; |
| 154 | #endif |
| 155 | |
| 156 | cftd->td_InputStream = PF_STDIN; |
| 157 | |
| 158 | cftd->td_SourcePtr = &cftd->td_TIB[0]; |
| 159 | cftd->td_SourceNum = 0; |
| 160 | |
| 161 | return (PForthTask) cftd; |
| 162 | |
| 163 | nomem: |
| 164 | ERR("CreateTaskContext: insufficient memory.\n"); |
| 165 | if( cftd ) pfDeleteTask( (PForthTask) cftd ); |
| 166 | return NULL; |
| 167 | } |
| 168 | |
| 169 | /*************************************************************** |
| 170 | ** Dictionary Management |
| 171 | ***************************************************************/ |
| 172 | |
| 173 | cell_t pfExecIfDefined( const char *CString ) |
| 174 | { |
| 175 | int result = 0; |
| 176 | if( NAME_BASE != (cell_t)NULL) |
| 177 | { |
| 178 | ExecToken XT; |
| 179 | if( ffFindC( CString, &XT ) ) |
| 180 | { |
| 181 | result = pfCatch( XT ); |
| 182 | } |
| 183 | } |
| 184 | return result; |
| 185 | } |
| 186 | |
| 187 | /*************************************************************** |
| 188 | ** Delete a dictionary created by pfCreateDictionary() |
| 189 | */ |
| 190 | void pfDeleteDictionary( PForthDictionary dictionary ) |
| 191 | { |
| 192 | pfDictionary_t *dic = (pfDictionary_t *) dictionary; |
| 193 | if( !dic ) return; |
| 194 | |
| 195 | if( dic->dic_Flags & PF_DICF_ALLOCATED_SEGMENTS ) |
| 196 | { |
| 197 | FREE_VAR( dic->dic_HeaderBaseUnaligned ); |
| 198 | FREE_VAR( dic->dic_CodeBaseUnaligned ); |
| 199 | } |
| 200 | pfFreeMem( dic ); |
| 201 | } |
| 202 | |
| 203 | /*************************************************************** |
| 204 | ** Create a complete dictionary. |
| 205 | ** The dictionary consists of two parts, the header with the names, |
| 206 | ** and the code portion. |
| 207 | ** Delete using pfDeleteDictionary(). |
| 208 | ** Return pointer to dictionary management structure. |
| 209 | */ |
| 210 | PForthDictionary pfCreateDictionary( cell_t HeaderSize, cell_t CodeSize ) |
| 211 | { |
| 212 | /* Allocate memory for initial dictionary. */ |
| 213 | pfDictionary_t *dic; |
| 214 | |
| 215 | dic = ( pfDictionary_t * ) pfAllocMem( sizeof( pfDictionary_t ) ); |
| 216 | if( !dic ) goto nomem; |
| 217 | pfSetMemory( dic, 0, sizeof( pfDictionary_t )); |
| 218 | |
| 219 | dic->dic_Flags |= PF_DICF_ALLOCATED_SEGMENTS; |
| 220 | |
| 221 | /* Align dictionary segments to preserve alignment of floats across hosts. |
| 222 | * Thank you Helmut Proelss for pointing out that this needs to be cast |
| 223 | * to (ucell_t) on 16 bit systems. |
| 224 | */ |
| 225 | #define DIC_ALIGNMENT_SIZE ((ucell_t)(0x10)) |
| 226 | #define DIC_ALIGN(addr) ((((ucell_t)(addr)) + DIC_ALIGNMENT_SIZE - 1) & ~(DIC_ALIGNMENT_SIZE - 1)) |
| 227 | |
| 228 | /* Allocate memory for header. */ |
| 229 | if( HeaderSize > 0 ) |
| 230 | { |
| 231 | dic->dic_HeaderBaseUnaligned = (ucell_t) pfAllocMem( (ucell_t) HeaderSize + DIC_ALIGNMENT_SIZE ); |
| 232 | if( !dic->dic_HeaderBaseUnaligned ) goto nomem; |
| 233 | /* Align header base. */ |
| 234 | dic->dic_HeaderBase = DIC_ALIGN(dic->dic_HeaderBaseUnaligned); |
| 235 | pfSetMemory( (char *) dic->dic_HeaderBase, 0xA5, (ucell_t) HeaderSize); |
| 236 | dic->dic_HeaderLimit = dic->dic_HeaderBase + HeaderSize; |
| 237 | dic->dic_HeaderPtr = dic->dic_HeaderBase; |
| 238 | } |
| 239 | else |
| 240 | { |
| 241 | dic->dic_HeaderBase = 0; |
| 242 | } |
| 243 | |
| 244 | /* Allocate memory for code. */ |
| 245 | dic->dic_CodeBaseUnaligned = (ucell_t) pfAllocMem( (ucell_t) CodeSize + DIC_ALIGNMENT_SIZE ); |
| 246 | if( !dic->dic_CodeBaseUnaligned ) goto nomem; |
| 247 | dic->dic_CodeBase = DIC_ALIGN(dic->dic_CodeBaseUnaligned); |
| 248 | pfSetMemory( (char *) dic->dic_CodeBase, 0x5A, (ucell_t) CodeSize); |
| 249 | |
| 250 | dic->dic_CodeLimit = dic->dic_CodeBase + CodeSize; |
| 251 | dic->dic_CodePtr.Byte = ((uint8_t *) (dic->dic_CodeBase + QUADUP(NUM_PRIMITIVES))); |
| 252 | |
| 253 | return (PForthDictionary) dic; |
| 254 | nomem: |
| 255 | pfDeleteDictionary( dic ); |
| 256 | return NULL; |
| 257 | } |
| 258 | |
| 259 | /*************************************************************** |
| 260 | ** Used by Quit and other routines to restore system. |
| 261 | ***************************************************************/ |
| 262 | |
| 263 | static void pfResetForthTask( void ) |
| 264 | { |
| 265 | /* Go back to terminal input. */ |
| 266 | gCurrentTask->td_InputStream = PF_STDIN; |
| 267 | |
| 268 | /* Reset stacks. */ |
| 269 | gCurrentTask->td_StackPtr = gCurrentTask->td_StackBase; |
| 270 | gCurrentTask->td_ReturnPtr = gCurrentTask->td_ReturnBase; |
| 271 | #ifdef PF_SUPPORT_FP /* Reset Floating Point stack too! */ |
| 272 | gCurrentTask->td_FloatStackPtr = gCurrentTask->td_FloatStackBase; |
| 273 | #endif |
| 274 | |
| 275 | /* Advance >IN to end of input. */ |
| 276 | gCurrentTask->td_IN = gCurrentTask->td_SourceNum; |
| 277 | gVarState = 0; |
| 278 | } |
| 279 | |
| 280 | /*************************************************************** |
| 281 | ** Set current task context. |
| 282 | ***************************************************************/ |
| 283 | |
| 284 | void pfSetCurrentTask( PForthTask task ) |
| 285 | { |
| 286 | gCurrentTask = (pfTaskData_t *) task; |
| 287 | } |
| 288 | |
| 289 | /*************************************************************** |
| 290 | ** Set Quiet Flag. |
| 291 | ***************************************************************/ |
| 292 | |
| 293 | void pfSetQuiet( cell_t IfQuiet ) |
| 294 | { |
| 295 | gVarQuiet = (cell_t) IfQuiet; |
| 296 | } |
| 297 | |
| 298 | /*************************************************************** |
| 299 | ** Query message status. |
| 300 | ***************************************************************/ |
| 301 | |
| 302 | cell_t pfQueryQuiet( void ) |
| 303 | { |
| 304 | return gVarQuiet; |
| 305 | } |
| 306 | |
| 307 | /*************************************************************** |
| 308 | ** Top level interpreter. |
| 309 | ***************************************************************/ |
| 310 | ThrowCode pfQuit( void ) |
| 311 | { |
| 312 | ThrowCode exception; |
| 313 | int go = 1; |
| 314 | |
| 315 | while(go) |
| 316 | { |
| 317 | exception = ffOuterInterpreterLoop(); |
| 318 | if( exception == 0 ) |
| 319 | { |
| 320 | exception = ffOK(); |
| 321 | } |
| 322 | |
| 323 | switch( exception ) |
| 324 | { |
| 325 | case 0: |
| 326 | break; |
| 327 | |
| 328 | case THROW_BYE: |
| 329 | go = 0; |
| 330 | break; |
| 331 | |
| 332 | case THROW_ABORT: |
| 333 | default: |
| 334 | ffDotS(); |
| 335 | pfReportThrow( exception ); |
| 336 | pfHandleIncludeError(); |
| 337 | pfResetForthTask(); |
| 338 | break; |
| 339 | } |
| 340 | } |
| 341 | |
| 342 | return gVarReturnCode; |
| 343 | } |
| 344 | |
| 345 | /*************************************************************** |
| 346 | ** Include file based on 'C' name. |
| 347 | ***************************************************************/ |
| 348 | |
| 349 | cell_t pfIncludeFile( const char *FileName ) |
| 350 | { |
| 351 | FileStream *fid; |
| 352 | cell_t Result; |
| 353 | char buffer[32]; |
| 354 | cell_t numChars, len; |
| 355 | |
| 356 | /* Open file. */ |
| 357 | fid = sdOpenFile( FileName, "r" ); |
| 358 | if( fid == NULL ) |
| 359 | { |
| 360 | ERR("pfIncludeFile could not open "); |
| 361 | ERR(FileName); |
| 362 | EMIT_CR; |
| 363 | return -1; |
| 364 | } |
| 365 | |
| 366 | /* Create a dictionary word named ::::FileName for FILE? */ |
| 367 | pfCopyMemory( &buffer[0], "::::", 4); |
| 368 | len = (cell_t) pfCStringLength(FileName); |
| 369 | numChars = ( len > (32-4-1) ) ? (32-4-1) : len; |
| 370 | pfCopyMemory( &buffer[4], &FileName[len-numChars], numChars+1 ); |
| 371 | CreateDicEntryC( ID_NOOP, buffer, 0 ); |
| 372 | |
| 373 | Result = ffIncludeFile( fid ); /* Also close the file. */ |
| 374 | |
| 375 | /* Create a dictionary word named ;;;; for FILE? */ |
| 376 | CreateDicEntryC( ID_NOOP, ";;;;", 0 ); |
| 377 | |
| 378 | return Result; |
| 379 | } |
| 380 | |
| 381 | /*************************************************************** |
| 382 | ** Output 'C' string message. |
| 383 | ** Use sdTerminalOut which works before initializing gCurrentTask. |
| 384 | ***************************************************************/ |
| 385 | void pfDebugMessage( const char *CString ) |
| 386 | { |
| 387 | #if 0 |
| 388 | while( *CString ) |
| 389 | { |
| 390 | char c = *CString++; |
| 391 | if( c == '\n' ) |
| 392 | { |
| 393 | sdTerminalOut( 0x0D ); |
| 394 | sdTerminalOut( 0x0A ); |
| 395 | pfDebugMessage( "DBG: " ); |
| 396 | } |
| 397 | else |
| 398 | { |
| 399 | sdTerminalOut( c ); |
| 400 | } |
| 401 | } |
| 402 | #else |
| 403 | (void)CString; |
| 404 | #endif |
| 405 | } |
| 406 | |
| 407 | /*************************************************************** |
| 408 | ** Print a decimal number to debug output. |
| 409 | */ |
| 410 | void pfDebugPrintDecimalNumber( int n ) |
| 411 | { |
| 412 | pfDebugMessage( ConvertNumberToText( n, 10, TRUE, 1 ) ); |
| 413 | } |
| 414 | |
| 415 | |
| 416 | /*************************************************************** |
| 417 | ** Output 'C' string message. |
| 418 | ** This is provided to help avoid the use of printf() and other I/O |
| 419 | ** which may not be present on a small embedded system. |
| 420 | ** Uses ioType & ioEmit so requires that gCurrentTask has been initialized. |
| 421 | ***************************************************************/ |
| 422 | void pfMessage( const char *CString ) |
| 423 | { |
| 424 | ioType( CString, (cell_t) pfCStringLength(CString) ); |
| 425 | } |
| 426 | |
| 427 | /************************************************************************** |
| 428 | ** Main entry point for pForth. |
| 429 | */ |
| 430 | cell_t pfDoForth( const char *DicFileName, const char *SourceName, cell_t IfInit ) |
| 431 | { |
| 432 | pfTaskData_t *cftd; |
| 433 | pfDictionary_t *dic = NULL; |
| 434 | cell_t Result = 0; |
| 435 | ExecToken EntryPoint = 0; |
| 436 | |
| 437 | #ifdef PF_USER_INIT |
| 438 | Result = PF_USER_INIT; |
| 439 | if( Result < 0 ) goto error1; |
| 440 | #endif |
| 441 | |
| 442 | pfInit(); |
| 443 | |
| 444 | /* Allocate Task structure. */ |
| 445 | pfDebugMessage("pfDoForth: call pfCreateTask()\n"); |
| 446 | cftd = pfCreateTask( DEFAULT_USER_DEPTH, DEFAULT_RETURN_DEPTH ); |
| 447 | |
| 448 | if( cftd ) |
| 449 | { |
| 450 | pfSetCurrentTask( cftd ); |
| 451 | |
| 452 | if( !gVarQuiet ) |
| 453 | { |
| 454 | MSG( "PForth V"PFORTH_VERSION ); |
| 455 | if( IsHostLittleEndian() ) MSG("-LE"); |
| 456 | else MSG("-BE"); |
| 457 | #if PF_BIG_ENDIAN_DIC |
| 458 | MSG("/BE"); |
| 459 | #elif PF_LITTLE_ENDIAN_DIC |
| 460 | MSG("/LE"); |
| 461 | #endif |
| 462 | if (sizeof(cell_t) == 8) |
| 463 | { |
| 464 | MSG("/64"); |
| 465 | } |
| 466 | else if (sizeof(cell_t) == 4) |
| 467 | { |
| 468 | MSG("/32"); |
| 469 | } |
| 470 | |
| 471 | MSG( ", built "__DATE__" "__TIME__ ); |
| 472 | } |
| 473 | |
| 474 | /* Don't use MSG before task set. */ |
| 475 | if( SourceName ) |
| 476 | { |
| 477 | pfDebugMessage("SourceName = "); pfDebugMessage(SourceName); pfDebugMessage("\n"); |
| 478 | } |
| 479 | |
| 480 | |
| 481 | #ifdef PF_NO_GLOBAL_INIT |
| 482 | if( LoadCustomFunctionTable() < 0 ) goto error2; /* Init custom 'C' call array. */ |
| 483 | #endif |
| 484 | |
| 485 | #if (!defined(PF_NO_INIT)) && (!defined(PF_NO_SHELL)) |
| 486 | if( IfInit ) |
| 487 | { |
| 488 | pfDebugMessage("Build dictionary from scratch.\n"); |
| 489 | dic = pfBuildDictionary( DEFAULT_HEADER_SIZE, DEFAULT_CODE_SIZE ); |
| 490 | } |
| 491 | else |
| 492 | #else |
| 493 | TOUCH(IfInit); |
| 494 | #endif /* !PF_NO_INIT && !PF_NO_SHELL*/ |
| 495 | { |
| 496 | if( DicFileName ) |
| 497 | { |
| 498 | pfDebugMessage("DicFileName = "); pfDebugMessage(DicFileName); pfDebugMessage("\n"); |
| 499 | if( !gVarQuiet ) |
| 500 | { |
| 501 | EMIT_CR; |
| 502 | } |
| 503 | dic = pfLoadDictionary( DicFileName, &EntryPoint ); |
| 504 | } |
| 505 | else |
| 506 | { |
| 507 | if( !gVarQuiet ) |
| 508 | { |
| 509 | MSG(" (static)"); |
| 510 | EMIT_CR; |
| 511 | } |
| 512 | dic = pfLoadStaticDictionary(); |
| 513 | } |
| 514 | } |
| 515 | if( dic == NULL ) goto error2; |
| 516 | |
| 517 | if( !gVarQuiet ) |
| 518 | { |
| 519 | EMIT_CR; |
| 520 | } |
| 521 | |
| 522 | pfDebugMessage("pfDoForth: try AUTO.INIT\n"); |
| 523 | Result = pfExecIfDefined("AUTO.INIT"); |
| 524 | if( Result != 0 ) |
| 525 | { |
| 526 | MSG("Error in AUTO.INIT"); |
| 527 | goto error2; |
| 528 | } |
| 529 | |
| 530 | if( EntryPoint != 0 ) |
| 531 | { |
| 532 | Result = pfCatch( EntryPoint ); |
| 533 | } |
| 534 | #ifndef PF_NO_SHELL |
| 535 | else |
| 536 | { |
| 537 | if( SourceName == NULL ) |
| 538 | { |
| 539 | pfDebugMessage("pfDoForth: pfQuit\n"); |
| 540 | Result = pfQuit(); |
| 541 | } |
| 542 | else |
| 543 | { |
| 544 | if( !gVarQuiet ) |
| 545 | { |
| 546 | MSG("Including: "); |
| 547 | MSG(SourceName); |
| 548 | MSG("\n"); |
| 549 | } |
| 550 | Result = pfIncludeFile( SourceName ); |
| 551 | } |
| 552 | } |
| 553 | #endif /* PF_NO_SHELL */ |
| 554 | |
| 555 | /* Clean up after running Forth. */ |
| 556 | pfExecIfDefined("AUTO.TERM"); |
| 557 | pfDeleteDictionary( dic ); |
| 558 | pfDeleteTask( cftd ); |
| 559 | } |
| 560 | |
| 561 | pfTerm(); |
| 562 | |
| 563 | #ifdef PF_USER_TERM |
| 564 | PF_USER_TERM; |
| 565 | #endif |
| 566 | |
| 567 | return Result; |
| 568 | |
| 569 | error2: |
| 570 | MSG("pfDoForth: Error occured.\n"); |
| 571 | pfDeleteTask( cftd ); |
| 572 | /* Terminate so we restore normal shell tty mode. */ |
| 573 | pfTerm(); |
| 574 | |
| 575 | #ifdef PF_USER_INIT |
| 576 | error1: |
| 577 | #endif |
| 578 | |
| 579 | return -1; |
| 580 | } |
| 581 | |
| 582 | |
| 583 | #ifdef PF_UNIT_TEST |
| 584 | cell_t pfUnitTest( void ) |
| 585 | { |
| 586 | cell_t numErrors = 0; |
| 587 | numErrors += pfUnitTestText(); |
| 588 | return numErrors; |
| 589 | } |
| 590 | #endif |