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Implement FLUSH-FILE
[pforth] / csrc / pfcompil.c
CommitLineData
8e9db35f
PB		 1/* @(#) pfcompil.c 98/01/26 1.5 */
2/***************************************************************
3** Compiler for PForth based on 'C'
4**
5** These routines could be left out of an execute only version.
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** 941004 PLB Extracted IO calls from pforth_main.c
21** 950320 RDG Added underflow checking for FP stack
22***************************************************************/
23
24#include "pf_all.h"
25#include "pfcompil.h"
26
27#define ABORT_RETURN_CODE (10)
28#define UINT32_MASK ((sizeof(ucell_t)-1))
29
30/***************************************************************/
31/************** Static Prototypes ******************************/
32/***************************************************************/
33
34static void ffStringColon( const ForthStringPtr FName );
35static cell_t CheckRedefinition( const ForthStringPtr FName );
36static void ffUnSmudge( void );
37static cell_t FindAndCompile( const char *theWord );
38static cell_t ffCheckDicRoom( void );
39
40#ifndef PF_NO_INIT
41 static void CreateDeferredC( ExecToken DefaultXT, const char *CName );
42#endif
43
44cell_t NotCompiled( const char *FunctionName )
45{
46 MSG("Function ");
47 MSG(FunctionName);
48 MSG(" not compiled in this version of PForth.\n");
49 return -1;
50}
51
52#ifndef PF_NO_SHELL
53/***************************************************************
54** Create an entry in the Dictionary for the given ExecutionToken.
55** FName is name in Forth format.
56*/
57void CreateDicEntry( ExecToken XT, const ForthStringPtr FName, ucell_t Flags )
58{
59 cfNameLinks *cfnl;
60
61 cfnl = (cfNameLinks *) gCurrentDictionary->dic_HeaderPtr;
62
63/* Set link to previous header, if any. */
64 if( gVarContext )
65 {
66 WRITE_CELL_DIC( &cfnl->cfnl_PreviousName, ABS_TO_NAMEREL( gVarContext ) );
67 }
68 else
69 {
70 cfnl->cfnl_PreviousName = 0;
71 }
72
73/* Put Execution token in header. */
74 WRITE_CELL_DIC( &cfnl->cfnl_ExecToken, XT );
75
76/* Advance Header Dictionary Pointer */
77 gCurrentDictionary->dic_HeaderPtr += sizeof(cfNameLinks);
78
79/* Laydown name. */
80 gVarContext = gCurrentDictionary->dic_HeaderPtr;
81 pfCopyMemory( (uint8_t *) gCurrentDictionary->dic_HeaderPtr, FName, (*FName)+1 );
82 gCurrentDictionary->dic_HeaderPtr += (*FName)+1;
83
84/* Set flags. */
85 *(char*)gVarContext |= (char) Flags;
86
87/* Align to quad byte boundaries with zeroes. */
88 while( gCurrentDictionary->dic_HeaderPtr & UINT32_MASK )
89 {
90 *(char*)(gCurrentDictionary->dic_HeaderPtr++) = 0;
91 }
92}
93
94/***************************************************************
95** Convert name then create dictionary entry.
96*/
97void CreateDicEntryC( ExecToken XT, const char *CName, ucell_t Flags )
98{
99 ForthString FName[40];
100 CStringToForth( FName, CName, sizeof(FName) );
101 CreateDicEntry( XT, FName, Flags );
102}
103
104/***************************************************************
105** Convert absolute namefield address to previous absolute name
106** field address or NULL.
107*/
108const ForthString *NameToPrevious( const ForthString *NFA )
109{
110 cell_t RelNamePtr;
111 const cfNameLinks *cfnl;
112
113/* DBUG(("\nNameToPrevious: NFA = 0x%x\n", (cell_t) NFA)); */
114 cfnl = (const cfNameLinks *) ( ((const char *) NFA) - sizeof(cfNameLinks) );
115
116 RelNamePtr = READ_CELL_DIC((const cell_t *) (&cfnl->cfnl_PreviousName));
117/* DBUG(("\nNameToPrevious: RelNamePtr = 0x%x\n", (cell_t) RelNamePtr )); */
118 if( RelNamePtr )
119 {
120 return ( (ForthString *) NAMEREL_TO_ABS( RelNamePtr ) );
121 }
122 else
123 {
124 return NULL;
125 }
126}
127/***************************************************************
128** Convert NFA to ExecToken.
129*/
130ExecToken NameToToken( const ForthString *NFA )
131{
132 const cfNameLinks *cfnl;
133
134/* Convert absolute namefield address to absolute link field address. */
135 cfnl = (const cfNameLinks *) ( ((const char *) NFA) - sizeof(cfNameLinks) );
136
137 return READ_CELL_DIC((const cell_t *) (&cfnl->cfnl_ExecToken));
138}
139
140/***************************************************************
141** Find XTs needed by compiler.
142*/
143cell_t FindSpecialXTs( void )
144{
145 if( ffFindC( "(QUIT)", &gQuitP_XT ) == 0) goto nofind;
146 if( ffFindC( "NUMBER?", &gNumberQ_XT ) == 0) goto nofind;
147 if( ffFindC( "ACCEPT", &gAcceptP_XT ) == 0) goto nofind;
148DBUG(("gNumberQ_XT = 0x%x\n", (unsigned int)gNumberQ_XT ));
149 return 0;
150
151nofind:
152 ERR("FindSpecialXTs failed!\n");
153 return -1;
154}
155
156/***************************************************************
157** Build a dictionary from scratch.
158*/
159#ifndef PF_NO_INIT
160PForthDictionary pfBuildDictionary( cell_t HeaderSize, cell_t CodeSize )
161{
162 pfDictionary_t *dic;
163
164 dic = pfCreateDictionary( HeaderSize, CodeSize );
165 if( !dic ) goto nomem;
166
167 pfDebugMessage("pfBuildDictionary: Start adding dictionary entries.\n");
168
169 gCurrentDictionary = dic;
170 gNumPrimitives = NUM_PRIMITIVES;
171
172 CreateDicEntryC( ID_EXIT, "EXIT", 0 );
173 pfDebugMessage("pfBuildDictionary: added EXIT\n");
174 CreateDicEntryC( ID_1MINUS, "1-", 0 );
175 pfDebugMessage("pfBuildDictionary: added 1-\n");
176 CreateDicEntryC( ID_1PLUS, "1+", 0 );
177 CreateDicEntryC( ID_2_R_FETCH, "2R@", 0 );
178 CreateDicEntryC( ID_2_R_FROM, "2R>", 0 );
179 CreateDicEntryC( ID_2_TO_R, "2>R", 0 );
180 CreateDicEntryC( ID_2DUP, "2DUP", 0 );
181 CreateDicEntryC( ID_2LITERAL, "2LITERAL", FLAG_IMMEDIATE );
182 CreateDicEntryC( ID_2LITERAL_P, "(2LITERAL)", 0 );
183 CreateDicEntryC( ID_2MINUS, "2-", 0 );
184 CreateDicEntryC( ID_2PLUS, "2+", 0 );
185 CreateDicEntryC( ID_2OVER, "2OVER", 0 );
186 CreateDicEntryC( ID_2SWAP, "2SWAP", 0 );
187 CreateDicEntryC( ID_ACCEPT_P, "(ACCEPT)", 0 );
188 CreateDeferredC( ID_ACCEPT_P, "ACCEPT" );
189 CreateDicEntryC( ID_ALITERAL, "ALITERAL", FLAG_IMMEDIATE );
190 CreateDicEntryC( ID_ALITERAL_P, "(ALITERAL)", 0 );
191 CreateDicEntryC( ID_ALLOCATE, "ALLOCATE", 0 );
192 pfDebugMessage("pfBuildDictionary: added ALLOCATE\n");
193 CreateDicEntryC( ID_ARSHIFT, "ARSHIFT", 0 );
194 CreateDicEntryC( ID_AND, "AND", 0 );
195 CreateDicEntryC( ID_BAIL, "BAIL", 0 );
196 CreateDicEntryC( ID_BRANCH, "BRANCH", 0 );
197 CreateDicEntryC( ID_BODY_OFFSET, "BODY_OFFSET", 0 );
198 CreateDicEntryC( ID_BYE, "BYE", 0 );
199 CreateDicEntryC( ID_CATCH, "CATCH", 0 );
200 CreateDicEntryC( ID_CELL, "CELL", 0 );
201 CreateDicEntryC( ID_CELLS, "CELLS", 0 );
202 CreateDicEntryC( ID_CFETCH, "C@", 0 );
203 CreateDicEntryC( ID_CMOVE, "CMOVE", 0 );
204 CreateDicEntryC( ID_CMOVE_UP, "CMOVE>", 0 );
205 CreateDicEntryC( ID_COLON, ":", 0 );
206 CreateDicEntryC( ID_COLON_P, "(:)", 0 );
207 CreateDicEntryC( ID_COMPARE, "COMPARE", 0 );
208 CreateDicEntryC( ID_COMP_EQUAL, "=", 0 );
209 CreateDicEntryC( ID_COMP_NOT_EQUAL, "<>", 0 );
210 CreateDicEntryC( ID_COMP_GREATERTHAN, ">", 0 );
211 CreateDicEntryC( ID_COMP_U_GREATERTHAN, "U>", 0 );
212 pfDebugMessage("pfBuildDictionary: added U>\n");
213 CreateDicEntryC( ID_COMP_LESSTHAN, "<", 0 );
214 CreateDicEntryC( ID_COMP_U_LESSTHAN, "U<", 0 );
215 CreateDicEntryC( ID_COMP_ZERO_EQUAL, "0=", 0 );
216 CreateDicEntryC( ID_COMP_ZERO_NOT_EQUAL, "0<>", 0 );
217 CreateDicEntryC( ID_COMP_ZERO_GREATERTHAN, "0>", 0 );
218 CreateDicEntryC( ID_COMP_ZERO_LESSTHAN, "0<", 0 );
219 CreateDicEntryC( ID_CR, "CR", 0 );
220 CreateDicEntryC( ID_CREATE, "CREATE", 0 );
221 CreateDicEntryC( ID_CREATE_P, "(CREATE)", 0 );
222 CreateDicEntryC( ID_D_PLUS, "D+", 0 );
223 CreateDicEntryC( ID_D_MINUS, "D-", 0 );
224 CreateDicEntryC( ID_D_UMSMOD, "UM/MOD", 0 );
225 CreateDicEntryC( ID_D_MUSMOD, "MU/MOD", 0 );
226 CreateDicEntryC( ID_D_MTIMES, "M*", 0 );
227 pfDebugMessage("pfBuildDictionary: added M*\n");
228 CreateDicEntryC( ID_D_UMTIMES, "UM*", 0 );
229 CreateDicEntryC( ID_DEFER, "DEFER", 0 );
230 CreateDicEntryC( ID_CSTORE, "C!", 0 );
231 CreateDicEntryC( ID_DEPTH, "DEPTH", 0 );
232 pfDebugMessage("pfBuildDictionary: added DEPTH\n");
233 CreateDicEntryC( ID_DIVIDE, "/", 0 );
234 CreateDicEntryC( ID_DOT, ".", 0 );
235 CreateDicEntryC( ID_DOTS, ".S", 0 );
236 pfDebugMessage("pfBuildDictionary: added .S\n");
237 CreateDicEntryC( ID_DO_P, "(DO)", 0 );
238 CreateDicEntryC( ID_DROP, "DROP", 0 );
239 CreateDicEntryC( ID_DUMP, "DUMP", 0 );
240 CreateDicEntryC( ID_DUP, "DUP", 0 );
241 CreateDicEntryC( ID_EMIT_P, "(EMIT)", 0 );
242 pfDebugMessage("pfBuildDictionary: added (EMIT)\n");
243 CreateDeferredC( ID_EMIT_P, "EMIT");
244 pfDebugMessage("pfBuildDictionary: added EMIT\n");
245 CreateDicEntryC( ID_EOL, "EOL", 0 );
246 CreateDicEntryC( ID_ERRORQ_P, "(?ERROR)", 0 );
247 CreateDicEntryC( ID_ERRORQ_P, "?ERROR", 0 );
248 CreateDicEntryC( ID_EXECUTE, "EXECUTE", 0 );
249 CreateDicEntryC( ID_FETCH, "@", 0 );
250 CreateDicEntryC( ID_FILL, "FILL", 0 );
251 CreateDicEntryC( ID_FIND, "FIND", 0 );
252 CreateDicEntryC( ID_FILE_CREATE, "CREATE-FILE", 0 );
253 CreateDicEntryC( ID_FILE_DELETE, "DELETE-FILE", 0 );
254 CreateDicEntryC( ID_FILE_OPEN, "OPEN-FILE", 0 );
255 CreateDicEntryC( ID_FILE_CLOSE, "CLOSE-FILE", 0 );
256 CreateDicEntryC( ID_FILE_READ, "READ-FILE", 0 );
257 CreateDicEntryC( ID_FILE_SIZE, "FILE-SIZE", 0 );
258 CreateDicEntryC( ID_FILE_WRITE, "WRITE-FILE", 0 );
259 CreateDicEntryC( ID_FILE_POSITION, "FILE-POSITION", 0 );
260 CreateDicEntryC( ID_FILE_REPOSITION, "REPOSITION-FILE", 0 );
8bf2fe25 261 CreateDicEntryC( ID_FILE_FLUSH, "FLUSH-FILE", 0 );
8e9db35f
PB		 262 CreateDicEntryC( ID_FILE_RO, "R/O", 0 );
263 CreateDicEntryC( ID_FILE_RW, "R/W", 0 );
264 CreateDicEntryC( ID_FILE_WO, "W/O", 0 );
265 CreateDicEntryC( ID_FILE_BIN, "BIN", 0 );
266 CreateDicEntryC( ID_FINDNFA, "FINDNFA", 0 );
267 CreateDicEntryC( ID_FLUSHEMIT, "FLUSHEMIT", 0 );
268 CreateDicEntryC( ID_FREE, "FREE", 0 );
269#include "pfcompfp.h"
270 CreateDicEntryC( ID_HERE, "HERE", 0 );
271 CreateDicEntryC( ID_NUMBERQ_P, "(SNUMBER?)", 0 );
272 CreateDicEntryC( ID_I, "I", 0 );
273 CreateDicEntryC( ID_INTERPRET, "INTERPRET", 0 );
274 CreateDicEntryC( ID_J, "J", 0 );
275 CreateDicEntryC( ID_INCLUDE_FILE, "INCLUDE-FILE", 0 );
276 CreateDicEntryC( ID_KEY, "KEY", 0 );
277 CreateDicEntryC( ID_LEAVE_P, "(LEAVE)", 0 );
278 CreateDicEntryC( ID_LITERAL, "LITERAL", FLAG_IMMEDIATE );
279 CreateDicEntryC( ID_LITERAL_P, "(LITERAL)", 0 );
280 CreateDicEntryC( ID_LOADSYS, "LOADSYS", 0 );
281 CreateDicEntryC( ID_LOCAL_COMPILER, "LOCAL-COMPILER", 0 );
282 CreateDicEntryC( ID_LOCAL_ENTRY, "(LOCAL.ENTRY)", 0 );
283 CreateDicEntryC( ID_LOCAL_EXIT, "(LOCAL.EXIT)", 0 );
284 CreateDicEntryC( ID_LOCAL_FETCH, "(LOCAL@)", 0 );
285 CreateDicEntryC( ID_LOCAL_FETCH_1, "(1_LOCAL@)", 0 );
286 CreateDicEntryC( ID_LOCAL_FETCH_2, "(2_LOCAL@)", 0 );
287 CreateDicEntryC( ID_LOCAL_FETCH_3, "(3_LOCAL@)", 0 );
288 CreateDicEntryC( ID_LOCAL_FETCH_4, "(4_LOCAL@)", 0 );
289 CreateDicEntryC( ID_LOCAL_FETCH_5, "(5_LOCAL@)", 0 );
290 CreateDicEntryC( ID_LOCAL_FETCH_6, "(6_LOCAL@)", 0 );
291 CreateDicEntryC( ID_LOCAL_FETCH_7, "(7_LOCAL@)", 0 );
292 CreateDicEntryC( ID_LOCAL_FETCH_8, "(8_LOCAL@)", 0 );
293 CreateDicEntryC( ID_LOCAL_STORE, "(LOCAL!)", 0 );
294 CreateDicEntryC( ID_LOCAL_STORE_1, "(1_LOCAL!)", 0 );
295 CreateDicEntryC( ID_LOCAL_STORE_2, "(2_LOCAL!)", 0 );
296 CreateDicEntryC( ID_LOCAL_STORE_3, "(3_LOCAL!)", 0 );
297 CreateDicEntryC( ID_LOCAL_STORE_4, "(4_LOCAL!)", 0 );
298 CreateDicEntryC( ID_LOCAL_STORE_5, "(5_LOCAL!)", 0 );
299 CreateDicEntryC( ID_LOCAL_STORE_6, "(6_LOCAL!)", 0 );
300 CreateDicEntryC( ID_LOCAL_STORE_7, "(7_LOCAL!)", 0 );
301 CreateDicEntryC( ID_LOCAL_STORE_8, "(8_LOCAL!)", 0 );
302 CreateDicEntryC( ID_LOCAL_PLUSSTORE, "(LOCAL+!)", 0 );
303 CreateDicEntryC( ID_LOOP_P, "(LOOP)", 0 );
304 CreateDicEntryC( ID_LSHIFT, "LSHIFT", 0 );
305 CreateDicEntryC( ID_MAX, "MAX", 0 );
306 CreateDicEntryC( ID_MIN, "MIN", 0 );
307 CreateDicEntryC( ID_MINUS, "-", 0 );
308 CreateDicEntryC( ID_NAME_TO_TOKEN, "NAME>", 0 );
309 CreateDicEntryC( ID_NAME_TO_PREVIOUS, "PREVNAME", 0 );
310 CreateDicEntryC( ID_NOOP, "NOOP", 0 );
311 CreateDeferredC( ID_NUMBERQ_P, "NUMBER?" );
312 CreateDicEntryC( ID_OR, "OR", 0 );
313 CreateDicEntryC( ID_OVER, "OVER", 0 );
314 pfDebugMessage("pfBuildDictionary: added OVER\n");
315 CreateDicEntryC( ID_PICK, "PICK", 0 );
316 CreateDicEntryC( ID_PLUS, "+", 0 );
317 CreateDicEntryC( ID_PLUSLOOP_P, "(+LOOP)", 0 );
318 CreateDicEntryC( ID_PLUS_STORE, "+!", 0 );
319 CreateDicEntryC( ID_QUIT_P, "(QUIT)", 0 );
320 CreateDeferredC( ID_QUIT_P, "QUIT" );
321 CreateDicEntryC( ID_QDO_P, "(?DO)", 0 );
322 CreateDicEntryC( ID_QDUP, "?DUP", 0 );
323 CreateDicEntryC( ID_QTERMINAL, "?TERMINAL", 0 );
324 CreateDicEntryC( ID_QTERMINAL, "KEY?", 0 );
325 CreateDicEntryC( ID_REFILL, "REFILL", 0 );
326 CreateDicEntryC( ID_RESIZE, "RESIZE", 0 );
327 CreateDicEntryC( ID_ROLL, "ROLL", 0 );
328 CreateDicEntryC( ID_ROT, "ROT", 0 );
329 CreateDicEntryC( ID_RSHIFT, "RSHIFT", 0 );
330 CreateDicEntryC( ID_R_DROP, "RDROP", 0 );
331 CreateDicEntryC( ID_R_FETCH, "R@", 0 );
332 CreateDicEntryC( ID_R_FROM, "R>", 0 );
333 CreateDicEntryC( ID_RP_FETCH, "RP@", 0 );
334 CreateDicEntryC( ID_RP_STORE, "RP!", 0 );
335 CreateDicEntryC( ID_SEMICOLON, ";", FLAG_IMMEDIATE );
336 CreateDicEntryC( ID_SP_FETCH, "SP@", 0 );
337 CreateDicEntryC( ID_SP_STORE, "SP!", 0 );
338 CreateDicEntryC( ID_STORE, "!", 0 );
339 CreateDicEntryC( ID_SAVE_FORTH_P, "(SAVE-FORTH)", 0 );
340 CreateDicEntryC( ID_SCAN, "SCAN", 0 );
341 CreateDicEntryC( ID_SKIP, "SKIP", 0 );
342 CreateDicEntryC( ID_SOURCE, "SOURCE", 0 );
343 CreateDicEntryC( ID_SOURCE_SET, "SET-SOURCE", 0 );
344 CreateDicEntryC( ID_SOURCE_ID, "SOURCE-ID", 0 );
345 CreateDicEntryC( ID_SOURCE_ID_PUSH, "PUSH-SOURCE-ID", 0 );
346 CreateDicEntryC( ID_SOURCE_ID_POP, "POP-SOURCE-ID", 0 );
08689895
HE		 347 CreateDicEntryC( ID_SOURCE_LINE_NUMBER_FETCH, "SOURCE-LINE-NUMBER@", 0 );
348 CreateDicEntryC( ID_SOURCE_LINE_NUMBER_STORE, "SOURCE-LINE-NUMBER!", 0 );
8e9db35f
PB		 349 CreateDicEntryC( ID_SWAP, "SWAP", 0 );
350 CreateDicEntryC( ID_TEST1, "TEST1", 0 );
351 CreateDicEntryC( ID_TEST2, "TEST2", 0 );
352 CreateDicEntryC( ID_TICK, "'", 0 );
353 CreateDicEntryC( ID_TIMES, "*", 0 );
354 CreateDicEntryC( ID_THROW, "THROW", 0 );
355 CreateDicEntryC( ID_TO_R, ">R", 0 );
356 CreateDicEntryC( ID_TYPE, "TYPE", 0 );
357 CreateDicEntryC( ID_VAR_BASE, "BASE", 0 );
358 CreateDicEntryC( ID_VAR_CODE_BASE, "CODE-BASE", 0 );
359 CreateDicEntryC( ID_VAR_CODE_LIMIT, "CODE-LIMIT", 0 );
360 CreateDicEntryC( ID_VAR_CONTEXT, "CONTEXT", 0 );
361 CreateDicEntryC( ID_VAR_DP, "DP", 0 );
362 CreateDicEntryC( ID_VAR_ECHO, "ECHO", 0 );
363 CreateDicEntryC( ID_VAR_HEADERS_PTR, "HEADERS-PTR", 0 );
364 CreateDicEntryC( ID_VAR_HEADERS_BASE, "HEADERS-BASE", 0 );
365 CreateDicEntryC( ID_VAR_HEADERS_LIMIT, "HEADERS-LIMIT", 0 );
366 CreateDicEntryC( ID_VAR_NUM_TIB, "#TIB", 0 );
367 CreateDicEntryC( ID_VAR_RETURN_CODE, "RETURN-CODE", 0 );
368 CreateDicEntryC( ID_VAR_TRACE_FLAGS, "TRACE-FLAGS", 0 );
369 CreateDicEntryC( ID_VAR_TRACE_LEVEL, "TRACE-LEVEL", 0 );
370 CreateDicEntryC( ID_VAR_TRACE_STACK, "TRACE-STACK", 0 );
371 CreateDicEntryC( ID_VAR_OUT, "OUT", 0 );
372 CreateDicEntryC( ID_VAR_STATE, "STATE", 0 );
373 CreateDicEntryC( ID_VAR_TO_IN, ">IN", 0 );
374 CreateDicEntryC( ID_WORD, "WORD", 0 );
375 CreateDicEntryC( ID_WORD_FETCH, "W@", 0 );
376 CreateDicEntryC( ID_WORD_STORE, "W!", 0 );
377 CreateDicEntryC( ID_XOR, "XOR", 0 );
378 CreateDicEntryC( ID_ZERO_BRANCH, "0BRANCH", 0 );
379
380 pfDebugMessage("pfBuildDictionary: FindSpecialXTs\n");
381 if( FindSpecialXTs() < 0 ) goto error;
382
383 if( CompileCustomFunctions() < 0 ) goto error; /* Call custom 'C' call builder. */
384
385#ifdef PF_DEBUG
386 DumpMemory( dic->dic_HeaderBase, 256 );
387 DumpMemory( dic->dic_CodeBase, 256 );
388#endif
389
390 pfDebugMessage("pfBuildDictionary: Finished adding dictionary entries.\n");
391 return (PForthDictionary) dic;
392
393error:
394 pfDebugMessage("pfBuildDictionary: Error adding dictionary entries.\n");
395 pfDeleteDictionary( dic );
396 return NULL;
397
398nomem:
399 return NULL;
400}
401#endif /* !PF_NO_INIT */
402
403/*
404** ( xt -- nfa 1 , x 0 , find NFA in dictionary from XT )
405** 1 for IMMEDIATE values
406*/
407cell_t ffTokenToName( ExecToken XT, const ForthString **NFAPtr )
408{
409 const ForthString *NameField;
410 cell_t Searching = TRUE;
411 cell_t Result = 0;
412 ExecToken TempXT;
413
414 NameField = (ForthString *) gVarContext;
415DBUGX(("\ffCodeToName: gVarContext = 0x%x\n", gVarContext));
416
417 do
418 {
419 TempXT = NameToToken( NameField );
420
421 if( TempXT == XT )
422 {
423DBUGX(("ffCodeToName: NFA = 0x%x\n", NameField));
424 *NFAPtr = NameField ;
425 Result = 1;
426 Searching = FALSE;
427 }
428 else
429 {
430 NameField = NameToPrevious( NameField );
431 if( NameField == NULL )
432 {
433 *NFAPtr = 0;
434 Searching = FALSE;
435 }
436 }
437 } while ( Searching);
438
439 return Result;
440}
441
442/*
443** ( $name -- $addr 0 | nfa -1 | nfa 1 , find NFA in dictionary )
444** 1 for IMMEDIATE values
445*/
446cell_t ffFindNFA( const ForthString *WordName, const ForthString **NFAPtr )
447{
448 const ForthString *WordChar;
449 uint8_t WordLen;
450 const char *NameField, *NameChar;
451 int8_t NameLen;
452 cell_t Searching = TRUE;
453 cell_t Result = 0;
454
455 WordLen = (uint8_t) ((ucell_t)*WordName & 0x1F);
456 WordChar = WordName+1;
457
458 NameField = (ForthString *) gVarContext;
459DBUG(("\nffFindNFA: WordLen = %d, WordName = %*s\n", WordLen, WordLen, WordChar ));
460DBUG(("\nffFindNFA: gVarContext = 0x%x\n", gVarContext));
461 do
462 {
463 NameLen = (uint8_t) ((ucell_t)(*NameField) & MASK_NAME_SIZE);
464 NameChar = NameField+1;
465/* DBUG((" %c\n", (*NameField & FLAG_SMUDGE) ? 'S' : 'V' )); */
466 if( ((*NameField & FLAG_SMUDGE) == 0) &&
467 (NameLen == WordLen) &&
468 ffCompareTextCaseN( NameChar, WordChar, WordLen ) ) /* FIXME - slow */
469 {
470DBUG(("ffFindNFA: found it at NFA = 0x%x\n", NameField));
471 *NFAPtr = NameField ;
472 Result = ((*NameField) & FLAG_IMMEDIATE) ? 1 : -1;
473 Searching = FALSE;
474 }
475 else
476 {
477 NameField = NameToPrevious( NameField );
478 if( NameField == NULL )
479 {
480 *NFAPtr = WordName;
481 Searching = FALSE;
482 }
483 }
484 } while ( Searching);
485DBUG(("ffFindNFA: returns 0x%x\n", Result));
486 return Result;
487}
488
489
490/***************************************************************
491** ( $name -- $name 0 | xt -1 | xt 1 )
492** 1 for IMMEDIATE values
493*/
494cell_t ffFind( const ForthString *WordName, ExecToken *pXT )
495{
496 const ForthString *NFA;
497 cell_t Result;
498
499 Result = ffFindNFA( WordName, &NFA );
500DBUG(("ffFind: %8s at 0x%x\n", WordName+1, NFA)); /* WARNING, not NUL terminated. %Q */
501 if( Result )
502 {
503 *pXT = NameToToken( NFA );
504 }
505 else
506 {
507 *pXT = (ExecToken) WordName;
508 }
509
510 return Result;
511}
512
513/****************************************************************
514** Find name when passed 'C' string.
515*/
516cell_t ffFindC( const char *WordName, ExecToken *pXT )
517{
518DBUG(("ffFindC: %s\n", WordName ));
519 CStringToForth( gScratch, WordName, sizeof(gScratch) );
520 return ffFind( gScratch, pXT );
521}
522
523
524/***********************************************************/
525/********* Compiling New Words *****************************/
526/***********************************************************/
527#define DIC_SAFETY_MARGIN (400)
528
529/*************************************************************
530** Check for dictionary overflow.
531*/
532static cell_t ffCheckDicRoom( void )
533{
534 cell_t RoomLeft;
535 RoomLeft = (char *)gCurrentDictionary->dic_HeaderLimit -
536 (char *)gCurrentDictionary->dic_HeaderPtr;
537 if( RoomLeft < DIC_SAFETY_MARGIN )
538 {
539 pfReportError("ffCheckDicRoom", PF_ERR_HEADER_ROOM);
540 return PF_ERR_HEADER_ROOM;
541 }
542
543 RoomLeft = (char *)gCurrentDictionary->dic_CodeLimit -
544 (char *)gCurrentDictionary->dic_CodePtr.Byte;
545 if( RoomLeft < DIC_SAFETY_MARGIN )
546 {
547 pfReportError("ffCheckDicRoom", PF_ERR_CODE_ROOM);
548 return PF_ERR_CODE_ROOM;
549 }
550 return 0;
551}
552
553/*************************************************************
554** Create a dictionary entry given a string name.
555*/
556void ffCreateSecondaryHeader( const ForthStringPtr FName)
557{
558 pfDebugMessage("ffCreateSecondaryHeader()\n");
559/* Check for dictionary overflow. */
560 if( ffCheckDicRoom() ) return;
561
562 pfDebugMessage("ffCreateSecondaryHeader: CheckRedefinition()\n");
563 CheckRedefinition( FName );
564/* Align CODE_HERE */
565 CODE_HERE = (cell_t *)( (((ucell_t)CODE_HERE) + UINT32_MASK) & ~UINT32_MASK);
566 CreateDicEntry( (ExecToken) ABS_TO_CODEREL(CODE_HERE), FName, FLAG_SMUDGE );
567}
568
569/*************************************************************
570** Begin compiling a secondary word.
571*/
572static void ffStringColon( const ForthStringPtr FName)
573{
574 ffCreateSecondaryHeader( FName );
575 gVarState = 1;
576}
577
578/*************************************************************
579** Read the next ExecToken from the Source and create a word.
580*/
581void ffColon( void )
582{
583 char *FName;
584
585 gDepthAtColon = DATA_STACK_DEPTH;
586
587 FName = ffWord( BLANK );
588 if( *FName > 0 )
589 {
590 ffStringColon( FName );
591 }
592}
593
594/*************************************************************
595** Check to see if name is already in dictionary.
596*/
597static cell_t CheckRedefinition( const ForthStringPtr FName )
598{
599 cell_t flag;
600 ExecToken XT;
601
602 flag = ffFind( FName, &XT);
603 if ( flag && !gVarQuiet)
604 {
605 ioType( FName+1, (cell_t) *FName );
606 MSG( " redefined.\n" ); /* FIXME - allow user to run off this warning. */
607 }
608 return flag;
609}
610
611void ffStringCreate( char *FName)
612{
613 ffCreateSecondaryHeader( FName );
614
615 CODE_COMMA( ID_CREATE_P );
616 CODE_COMMA( ID_EXIT );
617 ffFinishSecondary();
618
619}
620
621/* Read the next ExecToken from the Source and create a word. */
622void ffCreate( void )
623{
624 char *FName;
625
626 FName = ffWord( BLANK );
627 if( *FName > 0 )
628 {
629 ffStringCreate( FName );
630 }
631}
632
633void ffStringDefer( const ForthStringPtr FName, ExecToken DefaultXT )
634{
635 pfDebugMessage("ffStringDefer()\n");
636 ffCreateSecondaryHeader( FName );
637
638 CODE_COMMA( ID_DEFER_P );
639 CODE_COMMA( DefaultXT );
640
641 ffFinishSecondary();
642
643}
644#ifndef PF_NO_INIT
645/* Convert name then create deferred dictionary entry. */
646static void CreateDeferredC( ExecToken DefaultXT, const char *CName )
647{
648 char FName[40];
649 CStringToForth( FName, CName, sizeof(FName) );
650 ffStringDefer( FName, DefaultXT );
651}
652#endif
653
654/* Read the next token from the Source and create a word. */
655void ffDefer( void )
656{
657 char *FName;
658
659 FName = ffWord( BLANK );
660 if( *FName > 0 )
661 {
662 ffStringDefer( FName, ID_QUIT_P );
663 }
664}
665
666/* Unsmudge the word to make it visible. */
fb2f857a 667static void ffUnSmudge( void )
8e9db35f
PB		 668{
669 *(char*)gVarContext &= ~FLAG_SMUDGE;
670}
671
672/* Implement ; */
673ThrowCode ffSemiColon( void )
674{
675 ThrowCode exception = 0;
676 gVarState = 0;
677
678 if( (gDepthAtColon != DATA_STACK_DEPTH) &&
679 (gDepthAtColon != DEPTH_AT_COLON_INVALID) ) /* Ignore if no ':' */
680 {
681 exception = THROW_SEMICOLON;
682 }
683 else
684 {
685 ffFinishSecondary();
686 }
687 gDepthAtColon = DEPTH_AT_COLON_INVALID;
688 return exception;
689}
690
691/* Finish the definition of a Forth word. */
692void ffFinishSecondary( void )
693{
694 CODE_COMMA( ID_EXIT );
695 ffUnSmudge();
696}
697
698/**************************************************************/
699/* Used to pull a number from the dictionary to the stack */
700void ff2Literal( cell_t dHi, cell_t dLo )
701{
702 CODE_COMMA( ID_2LITERAL_P );
703 CODE_COMMA( dHi );
704 CODE_COMMA( dLo );
705}
706void ffALiteral( cell_t Num )
707{
708 CODE_COMMA( ID_ALITERAL_P );
709 CODE_COMMA( Num );
710}
711void ffLiteral( cell_t Num )
712{
713 CODE_COMMA( ID_LITERAL_P );
714 CODE_COMMA( Num );
715}
716
717#ifdef PF_SUPPORT_FP
718void ffFPLiteral( PF_FLOAT fnum )
719{
720 /* Hack for Metrowerks complier which won't compile the
721 * original expression.
722 */
723 PF_FLOAT *temp;
724 cell_t *dicPtr;
725
726/* Make sure that literal float data is float aligned. */
727 dicPtr = CODE_HERE + 1;
728 while( (((ucell_t) dicPtr++) & (sizeof(PF_FLOAT) - 1)) != 0)
729 {
730 DBUG((" comma NOOP to align FPLiteral\n"));
731 CODE_COMMA( ID_NOOP );
732 }
733 CODE_COMMA( ID_FP_FLITERAL_P );
734
735 temp = (PF_FLOAT *)CODE_HERE;
736 WRITE_FLOAT_DIC(temp,fnum); /* Write to dictionary. */
737 temp++;
738 CODE_HERE = (cell_t *) temp;
739}
740#endif /* PF_SUPPORT_FP */
741
742/**************************************************************/
fb2f857a 743static ThrowCode FindAndCompile( const char *theWord )
8e9db35f
PB		 744{
745 cell_t Flag;
746 ExecToken XT;
747 cell_t Num;
748 ThrowCode exception = 0;
749
750 Flag = ffFind( theWord, &XT);
751DBUG(("FindAndCompile: theWord = %8s, XT = 0x%x, Flag = %d\n", theWord, XT, Flag ));
752
753/* Is it a normal word ? */
754 if( Flag == -1 )
755 {
756 if( gVarState ) /* compiling? */
757 {
758 CODE_COMMA( XT );
759 }
760 else
761 {
762 exception = pfCatch( XT );
763 }
764 }
765 else if ( Flag == 1 ) /* or is it IMMEDIATE ? */
766 {
767DBUG(("FindAndCompile: IMMEDIATE, theWord = 0x%x\n", theWord ));
768 exception = pfCatch( XT );
769 }
770 else /* try to interpret it as a number. */
771 {
772/* Call deferred NUMBER? */
773 cell_t NumResult;
774
775DBUG(("FindAndCompile: not found, try number?\n" ));
776 PUSH_DATA_STACK( theWord ); /* Push text of number */
777 exception = pfCatch( gNumberQ_XT );
778 if( exception ) goto error;
779
780DBUG(("FindAndCompile: after number?\n" ));
781 NumResult = POP_DATA_STACK; /* Success? */
782 switch( NumResult )
783 {
784 case NUM_TYPE_SINGLE:
785 if( gVarState ) /* compiling? */
786 {
787 Num = POP_DATA_STACK;
788 ffLiteral( Num );
789 }
790 break;
791
792 case NUM_TYPE_DOUBLE:
793 if( gVarState ) /* compiling? */
794 {
795 Num = POP_DATA_STACK; /* get hi portion */
796 ff2Literal( Num, POP_DATA_STACK );
797 }
798 break;
799
800#ifdef PF_SUPPORT_FP
801 case NUM_TYPE_FLOAT:
802 if( gVarState ) /* compiling? */
803 {
804 ffFPLiteral( *gCurrentTask->td_FloatStackPtr++ );
805 }
806 break;
807#endif
808
809 case NUM_TYPE_BAD:
810 default:
811 ioType( theWord+1, *theWord );
812 MSG( " ? - unrecognized word!\n" );
813 exception = THROW_UNDEFINED_WORD;
814 break;
815
816 }
817 }
818error:
819 return exception;
820}
821
822/**************************************************************
823** Forth outer interpreter. Parses words from Source.
824** Executes them or compiles them based on STATE.
825*/
826ThrowCode ffInterpret( void )
827{
828 cell_t flag;
829 char *theWord;
830 ThrowCode exception = 0;
831
832/* Is there any text left in Source ? */
833 while( gCurrentTask->td_IN < (gCurrentTask->td_SourceNum) )
834 {
835
836 pfDebugMessage("ffInterpret: calling ffWord(()\n");
f7548536 837 theWord = ffLWord( BLANK );
8e9db35f
PB		 838 DBUG(("ffInterpret: theWord = 0x%x, Len = %d\n", theWord, *theWord ));
839
840 if( *theWord > 0 )
841 {
842 flag = 0;
843 if( gLocalCompiler_XT )
844 {
845 PUSH_DATA_STACK( theWord ); /* Push word. */
846 exception = pfCatch( gLocalCompiler_XT );
847 if( exception ) goto error;
848 flag = POP_DATA_STACK; /* Compiled local? */
849 }
850 if( flag == 0 )
851 {
852 exception = FindAndCompile( theWord );
853 if( exception ) goto error;
854 }
855 }
856
857 DBUG(("ffInterpret: IN=%d, SourceNum=%d\n", gCurrentTask->td_IN,
858 gCurrentTask->td_SourceNum ) );
859 }
860error:
861 return exception;
862}
863
864/**************************************************************/
865ThrowCode ffOK( void )
866{
867 cell_t exception = 0;
868/* Check for stack underflow. %Q what about overflows? */
869 if( (gCurrentTask->td_StackBase - gCurrentTask->td_StackPtr) < 0 )
870 {
871 exception = THROW_STACK_UNDERFLOW;
872 }
873#ifdef PF_SUPPORT_FP /* Check floating point stack too! */
874 else if((gCurrentTask->td_FloatStackBase - gCurrentTask->td_FloatStackPtr) < 0)
875 {
876 exception = THROW_FLOAT_STACK_UNDERFLOW;
877 }
878#endif
879 else if( gCurrentTask->td_InputStream == PF_STDIN)
880 {
881 if( !gVarState ) /* executing? */
882 {
883 if( !gVarQuiet )
884 {
885 MSG( " ok\n" );
886 if(gVarTraceStack) ffDotS();
887 }
888 else
889 {
890 EMIT_CR;
891 }
892 }
893 }
894 return exception;
895}
896
897/***************************************************************
898** Cleanup Include stack by popping and closing files.
899***************************************************************/
900void pfHandleIncludeError( void )
901{
902 FileStream *cur;
903
904 while( (cur = ffPopInputStream()) != PF_STDIN)
905 {
906 DBUG(("ffCleanIncludeStack: closing 0x%x\n", cur ));
907 sdCloseFile(cur);
908 }
909}
910
911/***************************************************************
912** Interpret input in a loop.
913***************************************************************/
914ThrowCode ffOuterInterpreterLoop( void )
915{
916 cell_t exception = 0;
917 do
918 {
919 exception = ffRefill();
920 if(exception <= 0) break;
921
922 exception = ffInterpret();
923 if( exception == 0 )
924 {
925 exception = ffOK();
926 }
927
928 } while( exception == 0 );
929 return exception;
930}
931
932/***************************************************************
933** Include then close a file
934***************************************************************/
935
936ThrowCode ffIncludeFile( FileStream *InputFile )
937{
938 ThrowCode exception;
939
940/* Push file stream. */
941 exception = ffPushInputStream( InputFile );
942 if( exception < 0 ) return exception;
943
944/* Run outer interpreter for stream. */
945 exception = ffOuterInterpreterLoop();
946 if( exception )
947 {
948 int i;
949/* Report line number and nesting level. */
950 MSG("INCLUDE error on line #"); ffDot(gCurrentTask->td_LineNumber);
951 MSG(", level = "); ffDot(gIncludeIndex );
952 EMIT_CR
953
954/* Dump line of error and show offset in line for >IN */
955 for( i=0; i<gCurrentTask->td_SourceNum; i++ )
956 {
957 char c = gCurrentTask->td_SourcePtr[i];
958 if( c == '\t' ) c = ' ';
959 EMIT(c);
960 }
961 EMIT_CR;
962 for( i=0; i<(gCurrentTask->td_IN - 1); i++ ) EMIT('^');
963 EMIT_CR;
964 }
965
966/* Pop file stream. */
967 ffPopInputStream();
968
969/* ANSI spec specifies that this should also close the file. */
970 sdCloseFile(InputFile);
971
972 return exception;
973}
974
975#endif /* !PF_NO_SHELL */
976
977/***************************************************************
978** Save current input stream on stack, use this new one.
979***************************************************************/
980Err ffPushInputStream( FileStream *InputFile )
981{
982 cell_t Result = 0;
983 IncludeFrame *inf;
984
985/* Push current input state onto special include stack. */
986 if( gIncludeIndex < MAX_INCLUDE_DEPTH )
987 {
988 inf = &gIncludeStack[gIncludeIndex++];
989 inf->inf_FileID = gCurrentTask->td_InputStream;
990 inf->inf_IN = gCurrentTask->td_IN;
991 inf->inf_LineNumber = gCurrentTask->td_LineNumber;
992 inf->inf_SourceNum = gCurrentTask->td_SourceNum;
993/* Copy TIB plus any NUL terminator into saved area. */
994 if( (inf->inf_SourceNum > 0) && (inf->inf_SourceNum < (TIB_SIZE-1)) )
995 {
996 pfCopyMemory( inf->inf_SaveTIB, gCurrentTask->td_TIB, inf->inf_SourceNum+1 );
997 }
998
999/* Set new current input. */
1000 DBUG(( "ffPushInputStream: InputFile = 0x%x\n", InputFile ));
1001 gCurrentTask->td_InputStream = InputFile;
1002 gCurrentTask->td_LineNumber = 0;
1003 }
1004 else
1005 {
1006 ERR("ffPushInputStream: max depth exceeded.\n");
1007 return -1;
1008 }
1009
1010
1011 return Result;
1012}
1013
1014/***************************************************************
1015** Go back to reading previous stream.
1016** Just return gCurrentTask->td_InputStream upon underflow.
1017***************************************************************/
1018FileStream *ffPopInputStream( void )
1019{
1020 IncludeFrame *inf;
1021 FileStream *Result;
1022
1023DBUG(("ffPopInputStream: gIncludeIndex = %d\n", gIncludeIndex));
1024 Result = gCurrentTask->td_InputStream;
1025
1026/* Restore input state. */
1027 if( gIncludeIndex > 0 )
1028 {
1029 inf = &gIncludeStack[--gIncludeIndex];
1030 gCurrentTask->td_InputStream = inf->inf_FileID;
1031 DBUG(("ffPopInputStream: stream = 0x%x\n", gCurrentTask->td_InputStream ));
1032 gCurrentTask->td_IN = inf->inf_IN;
1033 gCurrentTask->td_LineNumber = inf->inf_LineNumber;
1034 gCurrentTask->td_SourceNum = inf->inf_SourceNum;
1035/* Copy TIB plus any NUL terminator into saved area. */
1036 if( (inf->inf_SourceNum > 0) && (inf->inf_SourceNum < (TIB_SIZE-1)) )
1037 {
1038 pfCopyMemory( gCurrentTask->td_TIB, inf->inf_SaveTIB, inf->inf_SourceNum+1 );
1039 }
1040
1041 }
1042DBUG(("ffPopInputStream: return = 0x%x\n", Result ));
1043
1044 return Result;
1045}
1046
1047/***************************************************************
1048** Convert file pointer to value consistent with SOURCE-ID.
1049***************************************************************/
1050cell_t ffConvertStreamToSourceID( FileStream *Stream )
1051{
1052 cell_t Result;
1053 if(Stream == PF_STDIN)
1054 {
1055 Result = 0;
1056 }
1057 else if(Stream == NULL)
1058 {
1059 Result = -1;
1060 }
1061 else
1062 {
1063 Result = (cell_t) Stream;
1064 }
1065 return Result;
1066}
1067
1068/***************************************************************
1069** Convert file pointer to value consistent with SOURCE-ID.
1070***************************************************************/
1071FileStream * ffConvertSourceIDToStream( cell_t id )
1072{
1073 FileStream *stream;
1074
1075 if( id == 0 )
1076 {
1077 stream = PF_STDIN;
1078 }
1079 else if( id == -1 )
1080 {
1081 stream = NULL;
1082 }
1083 else
1084 {
1085 stream = (FileStream *) id;
1086 }
1087 return stream;
1088}
1089
1090/**************************************************************
1091** Receive line from input stream.
1092** Return length, or -1 for EOF.
1093*/
1094#define BACKSPACE (8)
1095static cell_t readLineFromStream( char *buffer, cell_t maxChars, FileStream *stream )
1096{
1097 int c;
1098 int len;
1099 char *p;
1100 static int lastChar = 0;
1101 int done = 0;
1102
1103DBUGX(("readLineFromStream(0x%x, 0x%x, 0x%x)\n", buffer, len, stream ));
1104 p = buffer;
1105 len = 0;
1106 while( (len < maxChars) && !done )
1107 {
1108 c = sdInputChar(stream);
1109 switch(c)
1110 {
1111 case EOF:
1112 DBUG(("EOF\n"));
1113 done = 1;
1114 if( len <= 0 ) len = -1;
1115 break;
1116
1117 case '\n':
1118 DBUGX(("EOL=\\n\n"));
1119 if( lastChar != '\r' ) done = 1;
1120 break;
1121
1122 case '\r':
1123 DBUGX(("EOL=\\r\n"));
1124 done = 1;
1125 break;
1126
1127 default:
1128 *p++ = (char) c;
1129 len++;
1130 break;
1131 }
1132 lastChar = c;
1133 }
1134
1135/* NUL terminate line to simplify printing when debugging. */
1136 if( (len >= 0) && (len < maxChars) ) p[len] = '\0';
1137
1138 return len;
1139}
1140
1141/**************************************************************
1142** ( -- , fill Source from current stream )
1143** Return 1 if successful, 0 for EOF, or a negative error.
1144*/
1145cell_t ffRefill( void )
1146{
1147 cell_t Num;
1148 cell_t Result = 1;
1149
1150/* reset >IN for parser */
1151 gCurrentTask->td_IN = 0;
1152
1153/* get line from current stream */
1154 if( gCurrentTask->td_InputStream == PF_STDIN )
1155 {
1156 /* ACCEPT is deferred so we call it through the dictionary. */
1157 PUSH_DATA_STACK( gCurrentTask->td_SourcePtr );
1158 PUSH_DATA_STACK( TIB_SIZE );
1159 pfCatch( gAcceptP_XT );
1160 Num = POP_DATA_STACK;
1161 if( Num < 0 )
1162 {
1163 Result = Num;
1164 goto error;
1165 }
1166 }
1167 else
1168 {
1169 Num = readLineFromStream( gCurrentTask->td_SourcePtr, TIB_SIZE,
1170 gCurrentTask->td_InputStream );
1171 if( Num == EOF )
1172 {
1173 Result = 0;
1174 Num = 0;
1175 }
1176 }
1177
1178 gCurrentTask->td_SourceNum = Num;
1179 gCurrentTask->td_LineNumber++; /* Bump for include. */
1180
1181/* echo input if requested */
1182 if( gVarEcho && ( Num > 0))
1183 {
1184 ioType( gCurrentTask->td_SourcePtr, gCurrentTask->td_SourceNum );
1185 EMIT_CR;
1186 }
1187
1188error:
1189 return Result;
1190}
Fork of 'github/philburk/pforth', a portable ANS-like Forth written in ANSI C.