1 /*****************************************************************************/
5 /* Main program for the ca65 macroassembler */
9 /* (C) 1998-2003 Ullrich von Bassewitz */
11 /* D-70794 Filderstadt */
12 /* EMail: uz@cc65.org */
15 /* This software is provided 'as-is', without any expressed or implied */
16 /* warranty. In no event will the authors be held liable for any damages */
17 /* arising from the use of this software. */
19 /* Permission is granted to anyone to use this software for any purpose, */
20 /* including commercial applications, and to alter it and redistribute it */
21 /* freely, subject to the following restrictions: */
23 /* 1. The origin of this software must not be misrepresented; you must not */
24 /* claim that you wrote the original software. If you use this software */
25 /* in a product, an acknowledgment in the product documentation would be */
26 /* appreciated but is not required. */
27 /* 2. Altered source versions must be plainly marked as such, and must not */
28 /* be misrepresented as being the original software. */
29 /* 3. This notice may not be removed or altered from any source */
32 /*****************************************************************************/
78 /*****************************************************************************/
80 /*****************************************************************************/
84 static void Usage (void)
85 /* Print usage information and exit */
88 "Usage: %s [options] file\n"
90 " -D name[=value]\tDefine a symbol\n"
91 " -I dir\t\tSet an include directory search path\n"
92 " -U\t\t\tMark unresolved symbols as import\n"
93 " -V\t\t\tPrint the assembler version\n"
94 " -W n\t\t\tSet warning level n\n"
95 " -g\t\t\tAdd debug info to object file\n"
96 " -h\t\t\tHelp (this text)\n"
97 " -i\t\t\tIgnore case of symbols\n"
98 " -l\t\t\tCreate a listing if assembly was ok\n"
99 " -mm model\t\tSet the memory model\n"
100 " -o name\t\tName the output file\n"
101 " -s\t\t\tEnable smart mode\n"
102 " -t sys\t\tSet the target system\n"
103 " -v\t\t\tIncrease verbosity\n"
106 " --auto-import\t\tMark unresolved symbols as import\n"
107 " --cpu type\t\tSet cpu type\n"
108 " --debug-info\t\tAdd debug info to object file\n"
109 " --feature name\tSet an emulation feature\n"
110 " --help\t\tHelp (this text)\n"
111 " --ignore-case\t\tIgnore case of symbols\n"
112 " --include-dir dir\tSet an include directory search path\n"
113 " --listing\t\tCreate a listing if assembly was ok\n"
114 " --memory-model model\tSet the memory model\n"
115 " --pagelength n\tSet the page length for the listing\n"
116 " --smart\t\tEnable smart mode\n"
117 " --target sys\t\tSet the target system\n"
118 " --verbose\t\tIncrease verbosity\n"
119 " --version\t\tPrint the assembler version\n",
125 static void SetOptions (void)
126 /* Set the option for the translator */
130 /* Set the translator */
131 sprintf (Buf, "ca65 V%u.%u.%u", VER_MAJOR, VER_MINOR, VER_PATCH);
134 /* Set date and time */
135 OptDateTime ((unsigned long) time(0));
140 static void DefineSymbol (const char* Def)
141 /* Define a symbol from the command line */
146 char SymName [MAX_STR_LEN+1];
151 /* The symbol must start with a character or underline */
152 if (Def [0] != '_' && !IsAlpha (Def [0])) {
157 /* Copy the symbol, checking the rest */
159 while (IsAlNum (*P) || *P == '_') {
160 if (I <= MAX_STR_LEN) {
167 /* Do we have a value given? */
174 /* We have a value */
178 if (sscanf (P, "%lx", &Val) != 1) {
182 if (sscanf (P, "%li", &Val) != 1) {
188 /* Search for the symbol, allocate a new one if it doesn't exist */
189 Sym = SymFind (CurrentScope, SymName, SYM_ALLOC_NEW);
191 /* Check if have already a symbol with this name */
192 if (SymIsDef (Sym)) {
193 AbEnd ("`%s' is already defined", SymName);
196 /* Generate an expression for the symbol */
197 Expr = GenLiteralExpr (Val);
199 /* Mark the symbol as defined */
200 SymDef (Sym, Expr, ADDR_SIZE_DEFAULT, SF_NONE);
205 static void OptAutoImport (const char* Opt attribute ((unused)),
206 const char* Arg attribute ((unused)))
207 /* Mark unresolved symbols as imported */
214 static void OptCPU (const char* Opt attribute ((unused)), const char* Arg)
215 /* Handle the --cpu option */
217 cpu_t CPU = FindCPU (Arg);
218 if (CPU == CPU_UNKNOWN) {
219 AbEnd ("Invalid CPU: `%s'", Arg);
227 static void OptDebugInfo (const char* Opt attribute ((unused)),
228 const char* Arg attribute ((unused)))
229 /* Add debug info to the object file */
236 static void OptFeature (const char* Opt attribute ((unused)), const char* Arg)
237 /* Set an emulation feature */
239 /* Set the feature, check for errors */
240 if (SetFeature (Arg) == FEAT_UNKNOWN) {
241 AbEnd ("Illegal emulation feature: `%s'", Arg);
247 static void OptHelp (const char* Opt attribute ((unused)),
248 const char* Arg attribute ((unused)))
249 /* Print usage information and exit */
257 static void OptIgnoreCase (const char* Opt attribute ((unused)),
258 const char* Arg attribute ((unused)))
259 /* Ignore case on symbols */
266 static void OptIncludeDir (const char* Opt attribute ((unused)), const char* Arg)
267 /* Add an include search path */
269 AddIncludePath (Arg);
274 static void OptListing (const char* Opt attribute ((unused)),
275 const char* Arg attribute ((unused)))
276 /* Create a listing file */
283 static void OptMemoryModel (const char* Opt, const char* Arg)
284 /* Set the memory model */
288 /* Check the current memory model */
289 if (MemoryModel != MMODEL_UNKNOWN) {
290 AbEnd ("Cannot use option `%s' twice", Opt);
293 /* Translate the memory model name and check it */
294 M = FindMemoryModel (Arg);
295 if (M == MMODEL_UNKNOWN) {
296 AbEnd ("Unknown memory model: %s", Arg);
297 } else if (M == MMODEL_HUGE) {
298 AbEnd ("Unsupported memory model: %s", Arg);
301 /* Set the memory model */
307 static void OptPageLength (const char* Opt attribute ((unused)), const char* Arg)
308 /* Handle the --pagelength option */
310 int Len = atoi (Arg);
311 if (Len != -1 && (Len < MIN_PAGE_LEN || Len > MAX_PAGE_LEN)) {
312 AbEnd ("Invalid page length: %d", Len);
319 static void OptSmart (const char* Opt attribute ((unused)),
320 const char* Arg attribute ((unused)))
321 /* Handle the -s/--smart options */
328 static void OptTarget (const char* Opt attribute ((unused)), const char* Arg)
329 /* Set the target system */
331 /* Map the target name to a target id */
332 Target = FindTarget (Arg);
333 if (Target == TGT_UNKNOWN) {
334 AbEnd ("Invalid target name: `%s'", Arg);
335 } else if (Target == TGT_MODULE) {
336 AbEnd ("Cannot use `module' as a target for the assembler");
342 static void OptVerbose (const char* Opt attribute ((unused)),
343 const char* Arg attribute ((unused)))
344 /* Increase verbosity */
351 static void OptVersion (const char* Opt attribute ((unused)),
352 const char* Arg attribute ((unused)))
353 /* Print the assembler version */
356 "ca65 V%u.%u.%u - %s\n",
357 VER_MAJOR, VER_MINOR, VER_PATCH, Copyright);
362 static void DoPCAssign (void)
363 /* Start absolute code */
365 long PC = ConstExpression ();
366 if (PC < 0 || PC > 0xFFFFFF) {
367 Error ("Range error");
375 static void OneLine (void)
376 /* Assemble one line */
379 unsigned long PC = 0;
383 /* Initialize the new listing line if we are actually reading from file
384 * and not from internally pushed input.
386 if (!HavePushedInput ()) {
390 if (Tok == TOK_COLON) {
391 /* An unnamed label */
396 /* Assemble the line */
397 if (Tok == TOK_LOCAL_IDENT || (Tok == TOK_IDENT && !IsMacro (SVal))) {
399 /* Did we have whitespace before the ident? */
402 /* Generate the symbol table entry, then skip the name */
403 if (Tok == TOK_IDENT) {
404 Sym = SymFind (CurrentScope, SVal, SYM_ALLOC_NEW);
406 Sym = SymFindLocal (SymLast, SVal, SYM_ALLOC_NEW);
410 /* If a colon follows, this is a label definition. If there
411 * is no colon, it's an assignment.
413 if (Tok == TOK_EQ || Tok == TOK_ASSIGN) {
414 /* If it's an assign token, we have a label */
415 unsigned Flags = (Tok == TOK_ASSIGN)? SF_LABEL : SF_NONE;
418 /* Define the symbol with the expression following the '=' */
419 SymDef (Sym, Expression(), ADDR_SIZE_DEFAULT, Flags);
420 /* Don't allow anything after a symbol definition */
423 /* A label. Remember the current segment, so we can later
424 * determine the size of the data stored under the label.
429 /* Define the label */
430 SymDef (Sym, GenCurrentPC (), ADDR_SIZE_DEFAULT, SF_LABEL);
432 /* Skip the colon. If NoColonLabels is enabled, allow labels
433 * without a colon if there is no whitespace before the
436 if (Tok != TOK_COLON) {
437 if (HadWS || !NoColonLabels) {
438 Error ("`:' expected");
439 /* Try some smart error recovery */
440 if (Tok == TOK_NAMESPACE) {
453 if (Tok >= TOK_FIRSTPSEUDO && Tok <= TOK_LASTPSEUDO) {
454 /* A control command */
456 } else if (Tok == TOK_MNEMO) {
457 /* A mnemonic - assemble one instruction */
458 HandleInstruction (IVal);
459 } else if (Tok == TOK_IDENT && IsMacro (SVal)) {
460 /* A macro expansion */
462 } else if (PCAssignment && (Tok == TOK_STAR || Tok == TOK_PC)) {
465 Error ("`=' expected");
468 /* Skip the equal sign */
470 /* Enter absolute mode */
475 /* If we have defined a label, remember its size. Sym is also set by
476 * a symbol assignment, but in this case Done is false, so we don't
481 if (Seg == ActiveSeg) {
483 Size = GetPC () - PC;
485 /* The line has switched the segment */
488 DefSizeOfSymbol (Sym, Size);
492 /* Line separator must come here */
498 static void Assemble (void)
499 /* Start the ball rolling ... */
504 /* Assemble lines until end of file */
505 while (Tok != TOK_EOF) {
512 static void CreateObjFile (void)
513 /* Create the object file */
515 /* Open the object, write the header */
518 /* Write the object file options */
521 /* Write the list of input files */
524 /* Write the segment data to the file */
527 /* Write the import list */
530 /* Write the export list */
533 /* Write debug symbols if requested */
536 /* Write line infos if requested */
539 /* Write the string pool */
542 /* Write the assertions */
545 /* Write an updated header and close the file */
551 int main (int argc, char* argv [])
552 /* Assembler main program */
554 /* Program long options */
555 static const LongOpt OptTab[] = {
556 { "--auto-import", 0, OptAutoImport },
557 { "--cpu", 1, OptCPU },
558 { "--debug-info", 0, OptDebugInfo },
559 { "--feature", 1, OptFeature },
560 { "--help", 0, OptHelp },
561 { "--ignore-case", 0, OptIgnoreCase },
562 { "--include-dir", 1, OptIncludeDir },
563 { "--listing", 0, OptListing },
564 { "--memory-model", 1, OptMemoryModel },
565 { "--pagelength", 1, OptPageLength },
566 { "--smart", 0, OptSmart },
567 { "--target", 1, OptTarget },
568 { "--verbose", 0, OptVerbose },
569 { "--version", 0, OptVersion },
574 /* Initialize the cmdline module */
575 InitCmdLine (&argc, &argv, "ca65");
577 /* Enter the base lexical level. We must do that here, since we may
578 * define symbols using -D.
580 SymEnterLevel ("", ST_GLOBAL, ADDR_SIZE_DEFAULT);
582 /* Check the parameters */
584 while (I < ArgCount) {
586 /* Get the argument */
587 const char* Arg = ArgVec [I];
589 /* Check for an option */
594 LongOption (&I, OptTab, sizeof(OptTab)/sizeof(OptTab[0]));
598 OptDebugInfo (Arg, 0);
606 OptIgnoreCase (Arg, 0);
615 OptMemoryModel (Arg, GetArg (&I, 3));
622 OutFile = GetArg (&I, 2);
630 OptTarget (Arg, GetArg (&I, 2));
638 DefineSymbol (GetArg (&I, 2));
642 OptIncludeDir (Arg, GetArg (&I, 2));
646 OptAutoImport (Arg, 0);
654 WarnLevel = atoi (GetArg (&I, 2));
663 /* Filename. Check if we already had one */
665 fprintf (stderr, "%s: Don't know what to do with `%s'\n",
677 /* Do we have an input file? */
679 fprintf (stderr, "%s: No input files\n", ProgName);
683 /* If no CPU given, use the default CPU for the target */
684 if (GetCPU () == CPU_UNKNOWN) {
685 if (Target != TGT_UNKNOWN) {
686 SetCPU (DefaultCPU[Target]);
692 /* If no memory model was given, use the default */
693 if (MemoryModel == MMODEL_UNKNOWN) {
694 SetMemoryModel (MMODEL_NEAR);
697 /* Intialize the target translation tables */
700 /* Initialize the segments */
703 /* Initialize the scanner, open the input file */
704 InitScanner (InFile);
706 /* Define the default options */
709 /* Assemble the input */
712 /* If we didn't have any errors, check the segment stack */
713 if (ErrorCount == 0) {
717 /* If we didn't have any errors, check the unnamed labels */
718 if (ErrorCount == 0) {
722 /* If we didn't have any errors, check the symbol table */
723 if (ErrorCount == 0) {
727 /* If we didn't have any errors, check and resolve the segment data */
728 if (ErrorCount == 0) {
732 /* If we didn't have an errors, index the line infos */
733 MakeLineInfoIndex ();
736 if (Verbosity >= 2) {
741 /* If we didn't have any errors, create the object and listing files */
742 if (ErrorCount == 0) {
749 /* Close the input file */
752 /* Return an apropriate exit code */
753 return (ErrorCount == 0)? EXIT_SUCCESS : EXIT_FAILURE;