2 // RMAC - Reboot's Macro Assembler for the Atari Jaguar Console System
3 // TOKEN.C - Token Handling
4 // Copyright (C) 199x Landon Dyer, 2011-2012 Reboot and Friends
5 // RMAC derived from MADMAC v1.07 Written by Landon Dyer, 1986
6 // Source Utilised with the Kind Permission of Landon Dyer
15 #define DECL_KW // Declare keyword arrays
16 #define DEF_KW // Declare keyword values
17 #include "kwtab.h" // Incl generated keyword tables & defs
20 int lnsave; // 1; strcpy() text of current line
21 int curlineno; // Current line number
22 int totlines; // Total # of lines
23 int mjump_align = 0; // mjump alignment flag
24 char lntag; // Line tag
25 char * curfname; // Current filename
26 char tolowertab[128]; // Uppercase ==> lowercase
27 char hextab[128]; // Table of hex values
28 char dotxtab[128]; // Table for ".b", ".s", etc.
29 char irbuf[LNSIZ]; // Text for .rept block line
30 char lnbuf[LNSIZ]; // Text of current line
31 WORD filecount; // Unique file number counter
32 WORD cfileno; // Current file number
33 TOKEN * tok; // Ptr to current token
34 TOKEN * etok; // Ptr past last token in tokbuf[]
35 TOKEN tokeol[1] = {EOL}; // Bailout end-of-line token
36 char * string[TOKBUFSIZE*2]; // Token buffer string pointer storage
38 // File record, used to maintain a list of every include file ever visited
39 #define FILEREC struct _filerec
49 INOBJ * cur_inobj; // Ptr current input obj (IFILE/IMACRO)
50 static INOBJ * f_inobj; // Ptr list of free INOBJs
51 static IFILE * f_ifile; // Ptr list of free IFILEs
52 static IMACRO * f_imacro; // Ptr list of free IMACROs
54 static TOKEN tokbuf[TOKBUFSIZE]; // Token buffer (stack-like, all files)
57 ILLEG, ILLEG, ILLEG, ILLEG, // NUL SOH STX ETX
58 ILLEG, ILLEG, ILLEG, ILLEG, // EOT ENQ ACK BEL
59 ILLEG, WHITE, ILLEG, ILLEG, // BS HT LF VT
60 WHITE, ILLEG, ILLEG, ILLEG, // FF CR SO SI
62 ILLEG, ILLEG, ILLEG, ILLEG, // DLE DC1 DC2 DC3
63 ILLEG, ILLEG, ILLEG, ILLEG, // DC4 NAK SYN ETB
64 ILLEG, ILLEG, ILLEG, ILLEG, // CAN EM SUB ESC
65 ILLEG, ILLEG, ILLEG, ILLEG, // FS GS RS US
67 WHITE, MULTX, MULTX, SELF, // SP ! " #
68 MULTX+CTSYM, MULTX, SELF, MULTX, // $ % & '
69 SELF, SELF, SELF, SELF, // ( ) * +
70 SELF, SELF, STSYM, SELF, // , - . /
72 DIGIT+HDIGIT+CTSYM, DIGIT+HDIGIT+CTSYM, // 0 1
73 DIGIT+HDIGIT+CTSYM, DIGIT+HDIGIT+CTSYM, // 2 3
74 DIGIT+HDIGIT+CTSYM, DIGIT+HDIGIT+CTSYM, // 4 5
75 DIGIT+HDIGIT+CTSYM, DIGIT+HDIGIT+CTSYM, // 6 7
76 DIGIT+HDIGIT+CTSYM, DIGIT+HDIGIT+CTSYM, // 8 9
78 MULTX, MULTX, MULTX, STSYM+CTSYM, // < = > ?
80 MULTX, STSYM+CTSYM+HDIGIT, // @ A
81 (char)((BYTE)DOT)+STSYM+CTSYM+HDIGIT, STSYM+CTSYM+HDIGIT, // B C
82 STSYM+CTSYM+HDIGIT, STSYM+CTSYM+HDIGIT, // D E
83 STSYM+CTSYM+HDIGIT, STSYM+CTSYM, // F G
84 STSYM+CTSYM, STSYM+CTSYM, STSYM+CTSYM, STSYM+CTSYM, // H I J K
85 (char)((BYTE)DOT)+STSYM+CTSYM, STSYM+CTSYM, STSYM+CTSYM, STSYM+CTSYM, // L M N O
87 STSYM+CTSYM, STSYM+CTSYM, STSYM+CTSYM, (char)((BYTE)DOT)+STSYM+CTSYM, // P Q R S
88 STSYM+CTSYM, STSYM+CTSYM, STSYM+CTSYM, (char)((BYTE)DOT)+STSYM+CTSYM, // T U V W
89 STSYM+CTSYM, STSYM+CTSYM, STSYM+CTSYM, SELF, // X Y Z [
90 SELF, SELF, MULTX, STSYM+CTSYM, // \ ] ^ _
92 ILLEG, STSYM+CTSYM+HDIGIT, // ` a
93 (char)((BYTE)DOT)+STSYM+CTSYM+HDIGIT, STSYM+CTSYM+HDIGIT, // b c
94 STSYM+CTSYM+HDIGIT, STSYM+CTSYM+HDIGIT, // d e
95 STSYM+CTSYM+HDIGIT, STSYM+CTSYM, // f g
96 STSYM+CTSYM, STSYM+CTSYM, STSYM+CTSYM, STSYM+CTSYM, // h i j k
97 (char)((BYTE)DOT)+STSYM+CTSYM, STSYM+CTSYM, STSYM+CTSYM, STSYM+CTSYM, // l m n o
99 STSYM+CTSYM, STSYM+CTSYM, STSYM+CTSYM, (char)((BYTE)DOT)+STSYM+CTSYM, // p q r s
100 STSYM+CTSYM, STSYM+CTSYM, STSYM+CTSYM, (char)((BYTE)DOT)+STSYM+CTSYM, // t u v w
101 STSYM+CTSYM, STSYM+CTSYM, STSYM+CTSYM, SELF, // x y z {
102 SELF, SELF, SELF, ILLEG // | } ~ DEL
105 // Names of registers
106 static char * regname[] = {
107 "d0", "d1", "d2", "d3", "d4", "d5", "d6", "d7",
108 "a0", "a1", "a2", "a3", "a4", "a5", "a6", "a7",
109 "pc", "ssp", "usp", "sr", "ccr"
112 static char * riscregname[] = {
113 "r0", "r1", "r2", "r3", "r4", "r5", "r6", "r7",
114 "r8", "r9", "r10", "r11", "r12", "r13", "r14", "r15",
115 "r16", "r17", "r18", "r19", "r20", "r21", "r22", "r23",
116 "r24", "r25", "r26", "r27", "r28", "r29", "r30", "r31"
121 // Initialize Tokenizer
123 void InitTokenizer(void)
126 char * htab = "0123456789abcdefABCDEF"; // Hex character table
128 lnsave = 0; // Don't save lines
129 curfname = ""; // No file, empty filename
130 filecount = (WORD)-1;
131 cfileno = (WORD)-1; // cfileno gets bumped to 0
143 // Initialize hex, "dot" and tolower tables
148 tolowertab[i] = (char)i;
151 for(i=0; htab[i]!=EOS; i++)
152 hextab[htab[i]] = (char)((i < 16) ? i : i - 6);
154 for(i='A'; i<='Z'; i++)
155 tolowertab[i] |= 0x20;
157 // These characters are legal immediately after a period
158 dotxtab['b'] = DOTB; // .b .B .s .S
162 dotxtab['w'] = DOTW; // .w .W
164 dotxtab['l'] = DOTL; // .l .L
166 dotxtab['i'] = DOTI; // .i .I (???)
171 void SetFilenameForErrorReporting(void)
175 // Check for absolute top filename (this should never happen)
178 curfname = "(*top*)";
182 FILEREC * fr = filerec;
184 // Advance to the correct record...
185 while (fr != NULL && fnum != 0)
191 // Check for file # record not found (this should never happen either)
194 curfname = "(*NOT FOUND*)";
198 curfname = fr->frec_name;
203 // Allocate an IFILE or IMACRO
205 INOBJ * a_inobj(int typ)
211 // Allocate and initialize INOBJ first
213 inobj = malloc(sizeof(INOBJ));
217 f_inobj = f_inobj->in_link;
222 case SRC_IFILE: // Alloc and init an IFILE
224 ifile = malloc(sizeof(IFILE));
228 f_ifile = f_ifile->if_link;
231 inobj->inobj.ifile = ifile;
233 case SRC_IMACRO: // Alloc and init an IMACRO
234 if (f_imacro == NULL)
235 imacro = malloc(sizeof(IMACRO));
239 f_imacro = f_imacro->im_link;
242 inobj->inobj.imacro = imacro;
244 case SRC_IREPT: // Alloc and init an IREPT
245 inobj->inobj.irept = malloc(sizeof(IREPT));
246 DEBUG printf("alloc IREPT\n");
250 // Install INOBJ on top of input stack
251 inobj->in_ifent = ifent; // Record .if context on entry
252 inobj->in_type = (WORD)typ;
253 inobj->in_otok = tok;
254 inobj->in_etok = etok;
255 inobj->in_link = cur_inobj;
263 // Perform macro substitution from 'orig' to 'dest'. Return OK or some error.
264 // A macro reference is in one of two forms:
265 // \name <non-name-character>
267 // A doubled backslash (\\) is compressed to a single backslash (\).
268 // Argument definitions have been pre-tokenized, so we have to turn them back
269 // into text. This means that numbers, in particular, become hex, regardless of
270 // their representation when the macro was invoked. This is a hack.
271 // A label may appear at the beginning of the line:
272 // :<name><whitespace>
273 // (the colon must be in the first column). These labels are stripped before
274 // macro expansion takes place.
276 int ExpandMacro(char * src, char * dest, int destsiz)
279 int questmark; // \? for testing argument existence
280 char mname[128]; // Assume max size of a formal arg name
281 char numbuf[20]; // Buffer for text of CONSTs
284 char ** symbolString;
286 DEBUG { printf("ExM: src=\"%s\"\n", src); }
288 IMACRO * imacro = cur_inobj->inobj.imacro;
289 int macnum = (int)(imacro->im_macro->sattr);
292 char * dst = dest; // Next dest slot
293 char * edst = dest + destsiz - 1; // End + 1(?) of dest buffer
295 // Check for (and skip over) any "label" on the line
301 while (*s != EOS && !(chrtab[*s] & WHITE))
305 s++; // Skip first whitespace
308 // Expand the rest of the line
311 // Copy single character
319 // Do macro expansion
327 case '\\': // \\, \ (collapse to single backslash)
333 case '?': // \? <macro> set `questmark' flag
337 case '#': // \#, number of arguments
338 sprintf(numbuf, "%d", (int)imacro->im_nargs);
340 case '!': // \! size suffix supplied on invocation
341 switch ((int)imacro->im_siz)
343 case SIZN: d = ""; break;
344 case SIZB: d = ".b"; break;
345 case SIZW: d = ".w"; break;
346 case SIZL: d = ".l"; break;
350 case '~': // ==> unique label string Mnnnn...
351 sprintf(numbuf, "M%u", curuniq);
367 return error("missing argument name");
370 // \n ==> argument number 'n', 0..9
371 if (chrtab[*s] & DIGIT)
381 // Get argument name: \name, \{name}
391 while (chrtab[*s] & CTSYM);
396 for(++s; *s != EOS && *s != '}';)
400 return error("missing '}'");
407 // Lookup the argument and copy its (string) value into the
408 // destination string
409 DEBUG printf("argument='%s'\n", mname);
411 if ((arg = lookup(mname, MACARG, macnum)) == NULL)
412 return errors("undefined argument: '%s'", mname);
415 // Convert a string of tokens (terminated with EOL) back into
416 // text. If an argument is out of range (not specified in the
417 // macro invocation) then it is ignored.
418 i = (int)arg->svalue;
420 DEBUG printf("~argnumber=%d (argBase=%u)\n", i, imacro->argBase);
423 if (i < imacro->im_nargs)
428 tk = argPtrs[imacro->argBase + i];
430 tk = imacro->argument[i].token;
431 symbolString = imacro->argument[i].string;
434 // printf("ExM: Preparing to parse argument #%u...\n", i);
441 // 0 if the argument is empty or non-existant,
442 // 1 if the argument is not empty
445 if (tk == NULL || *tk == EOL)
451 *dst++ = (char)(questmark + '0');
455 // Argument # is in range, so expand it
460 // Reverse-translation from a token number to a string.
461 // This is a hack. It might be better table-driven.
464 if ((*tk >= KW_D0) && !rdsp && !rgpu)
466 d = regname[(int)*tk++ - KW_D0];
469 else if ((*tk >= KW_R0) && (*tk <= KW_R31))
471 d = riscregname[(int)*tk++ - KW_R0];
480 // d = (char *)*tk++;
483 // This fix should be done for strings too
484 d = symbolString[*tk++];
485 DEBUG printf("ExM: SYMBOL=\"%s\"", d);
490 // d = (char *)*tk++;
493 d = symbolString[*tk++];
514 // Shamus: Changing the format specifier from %lx to %ux caused
515 // the assembler to choke on legitimate code... Need to investigate
516 // this further before changing anything else here!
518 sprintf(numbuf, "$%lx", (LONG)*tk++);
579 *dst++ = (char)*(tk - 1);
584 // If 'd' != NULL, copy string to destination
588 DEBUG printf("d='%s'\n", d);
605 DEBUG { printf("ExM: dst=\"%s\"\n", dest); }
610 DEBUG printf("*** OVERFLOW LINE ***\n%s\n", dest);
611 return fatal("line too long as a result of macro expansion");
616 // Get Next Line of Text from a Macro
618 char * GetNextMacroLine(void)
620 unsigned source_addr;
622 IMACRO * imacro = cur_inobj->inobj.imacro;
623 // LONG * strp = imacro->im_nextln;
624 struct LineList * strp = imacro->im_nextln;
626 if (strp == NULL) // End-of-macro
629 // imacro->im_nextln = (LONG *)*strp;
630 imacro->im_nextln = strp->next;
631 // ExpandMacro((char *)(strp + 1), imacro->im_lnbuf, LNSIZ);
632 ExpandMacro(strp->line, imacro->im_lnbuf, LNSIZ);
634 return imacro->im_lnbuf;
639 // Get Next Line of Text from a Repeat Block
641 char * GetNextRepeatLine(void)
644 IREPT * irept = cur_inobj->inobj.irept;
645 LONG * strp = irept->ir_nextln; // initial null
647 // Do repeat at end of .rept block's string list
650 DEBUG printf("back-to-top-of-repeat-block count=%d\n", (int)irept->ir_count);
651 irept->ir_nextln = irept->ir_firstln; // copy first line
653 if (irept->ir_count-- == 0)
655 DEBUG printf("end-repeat-block\n");
659 strp = irept->ir_nextln;
662 strcpy(irbuf, (char *)(irept->ir_nextln + 1));
663 DEBUG printf("repeat line='%s'\n", irbuf);
664 irept->ir_nextln = (LONG *)*strp;
671 // Include a Source File used at the Root, and for ".include" Files
673 int include(int handle, char * fname)
681 printf("[include: %s, cfileno=%u]\n", fname, cfileno);
683 // Alloc and initialize include-descriptors
684 inobj = a_inobj(SRC_IFILE);
685 ifile = inobj->inobj.ifile;
687 ifile->ifhandle = handle; // Setup file handle
688 ifile->ifind = ifile->ifcnt = 0; // Setup buffer indices
689 ifile->ifoldlineno = curlineno; // Save old line number
690 ifile->ifoldfname = curfname; // Save old filename
691 ifile->ifno = cfileno; // Save old file number
693 // cfileno = filecount++; // Compute new file number
694 // NB: This *must* be preincrement, we're adding one to the filecount here!
695 cfileno = ++filecount; // Compute NEW file number
696 curfname = strdup(fname); // Set current filename (alloc storage)
697 curlineno = 0; // Start on line zero
699 // Add another file to the file-record
700 fr = (FILEREC *)malloc(sizeof(FILEREC));
701 fr->frec_next = NULL;
702 fr->frec_name = curfname;
705 filerec = fr; // Add first filerec
707 last_fr->frec_next = fr; // Append to list of filerecs
710 DEBUG printf("[include: curfname: %s, cfileno=%u]\n", curfname, cfileno);
717 // Pop the Current Input Level
724 INOBJ * inobj = cur_inobj;
728 // Pop IFENT levels until we reach the conditional assembly context we
729 // were at when the input object was entered.
730 while (ifent != inobj->in_ifent)
733 tok = inobj->in_otok; // Restore tok and otok
734 etok = inobj->in_etok;
736 switch (inobj->in_type)
738 case SRC_IFILE: // Pop and release an IFILE
740 printf("[Leaving: %s]\n", curfname);
742 ifile = inobj->inobj.ifile;
743 ifile->if_link = f_ifile;
745 close(ifile->ifhandle); // Close source file
746 if (verb_flag) printf("[fpop (pre): curfname=%s]\n", curfname);
747 curfname = ifile->ifoldfname; // Set current filename
748 if (verb_flag) printf("[fpop (post): curfname=%s]\n", curfname);
749 if (verb_flag) printf("[fpop: (pre) cfileno=%d ifile->ifno=%d]\n", (int)cfileno, (int)ifile->ifno);
750 curlineno = ifile->ifoldlineno; // Set current line#
751 DEBUG printf("cfileno=%d ifile->ifno=%d\n", (int)cfileno, (int)ifile->ifno);
752 cfileno = ifile->ifno; // Restore current file number
753 if (verb_flag) printf("[fpop: (post) cfileno=%d ifile->ifno=%d]\n", (int)cfileno, (int)ifile->ifno);
755 case SRC_IMACRO: // Pop and release an IMACRO
756 imacro = inobj->inobj.imacro;
757 imacro->im_link = f_imacro;
760 case SRC_IREPT: // Pop and release an IREPT
761 DEBUG printf("dealloc IREPT\n");
762 p = inobj->inobj.irept->ir_firstln;
773 cur_inobj = inobj->in_link;
774 inobj->in_link = f_inobj;
783 // Get line from file into buf, return NULL on EOF or ptr to the start of a
786 char * GetNextLine(void)
790 int readamt = -1; // 0 if last read() yeilded 0 bytes
791 IFILE * fl = cur_inobj->inobj.ifile;
795 // Scan for next end-of-line; handle stupid text formats by treating
796 // \r\n the same as \n. (lone '\r' at end of buffer means we have to
800 d = &fl->ifbuf[fl->ifind];
802 for(p=d; i<j; i++, p++)
804 if (*p == '\r' || *p == '\n')
812 break; // Look for '\n' to eat
814 else if (p[1] == '\n')
828 // Handle hanging lines by ignoring them (Input file is exhausted, no
829 // \r or \n on last line)
830 if (!readamt && fl->ifcnt)
837 // Truncate and return absurdly long lines.
838 if (fl->ifcnt >= QUANTUM)
840 fl->ifbuf[fl->ifind + fl->ifcnt - 1] = '\0';
842 return &fl->ifbuf[fl->ifind];
845 // Relocate what's left of a line to the beginning of the buffer, and
846 // read some more of the file in; return NULL if the buffer's empty and
850 p = &fl->ifbuf[fl->ifind];
851 d = &fl->ifbuf[fl->ifcnt & 1];
853 for(i=0; i<fl->ifcnt; i++)
856 fl->ifind = fl->ifcnt & 1;
859 if ((readamt = read(fl->ifhandle, &fl->ifbuf[fl->ifind + fl->ifcnt], QUANTUM)) < 0)
862 if ((fl->ifcnt += readamt) == 0)
871 int TokenizeLine(void)
873 char * ln = NULL; // Ptr to current position in line
874 char * p; // Random character ptr
875 TOKEN * tk; // Token-deposit ptr
876 int state = 0; // State for keyword detector
877 int j = 0; // Var for keyword detector
878 char c; // Random char
879 VALUE v; // Random value
880 char * nullspot = NULL; // Spot to clobber for SYMBOL terminatn
881 int stuffnull; // 1:terminate SYMBOL '\0' at *nullspot
883 int stringNum = 0; // Pointer to string locations in tokenized line
887 if (cur_inobj == NULL) // Return EOF if input stack is empty
890 // Get another line of input from the current input source: a file,
891 // a macro, or a repeat-block
892 switch (cur_inobj->in_type)
896 // o bump source line number;
897 // o tag the listing-line with a space;
898 // o kludge lines generated by Alcyon C.
900 if ((ln = GetNextLine()) == NULL)
902 if (verb_flag) printf("TokenizeLine: Calling fpop() from SRC_IFILE...\n");
903 fpop(); // Pop input level
904 goto retry; // Try for more lines
907 curlineno++; // Bump line number
912 // AS68 compatibility, throw away all lines starting with
913 // back-quotes, tildes, or '*'
914 // On other lines, turn the first '*' into a semi-colon.
915 if (*ln == '`' || *ln == '~' || *ln == '*')
919 for(p=ln; *p!=EOS; p++)
932 // o Handle end-of-macro;
933 // o tag the listing-line with an at (@) sign.
935 if ((ln = GetNextMacroLine()) == NULL)
937 ExitMacro(); // Exit macro (pop args, do fpop(), etc)
938 goto retry; // Try for more lines...
944 // o Handle end-of-repeat-block;
945 // o tag the listing-line with a pound (#) sign.
947 if ((ln = GetNextRepeatLine()) == NULL)
949 if (verb_flag) printf("TokenizeLine: Calling fpop() from SRC_IREPT...\n");
958 // Save text of the line. We only do this during listings and within
959 // macro-type blocks, since it is expensive to unconditionally copy every
964 // General house-keeping
965 tok = tokeol; // Set "tok" to EOL in case of error
966 tk = etok; // Reset token ptr
967 stuffnull = 0; // Don't stuff nulls
968 totlines++; // Bump total #lines assembled
970 // See if the entire line is a comment. This is a win if the programmer
971 // puts in lots of comments
972 if (*ln == '*' || *ln == ';' || ((*ln == '/') && (*(ln + 1) == '/')))
975 // Main tokenization loop;
976 // o skip whitespace;
977 // o handle end-of-line;
979 // o handle single-character tokens (operators, etc.);
980 // o handle multiple-character tokens (constants, strings, etc.).
983 // Skip whitespace, handle EOL
984 while ((int)chrtab[*ln] & WHITE)
987 // Handle EOL, comment with ';'
988 if (*ln == EOS || *ln == ';'|| ((*ln == '/') && (*(ln + 1) == '/')))
991 // Handle start of symbol. Symbols are null-terminated in place. The
992 // termination is always one symbol behind, since there may be no place
993 // for a null in the case that an operator immediately follows the name.
998 if (stuffnull) // Terminate old symbol from previous pass
1001 v = 0; // Assume no DOT attrib follows symbol
1003 p = nullspot = ln++; // Nullspot -> start of this symbol
1005 // Find end of symbol (and compute its length)
1006 for(j=1; (int)chrtab[*ln]&CTSYM; j++)
1009 // Handle "DOT" special forms (like ".b") that follow a normal
1010 // symbol or keyword:
1013 *ln++ = EOS; // Terminate symbol
1014 stuffnull = 0; // And never try it again
1016 // Character following the `.' must have a DOT attribute, and
1017 // the chararacter after THAT one must not have a start-symbol
1018 // attribute (to prevent symbols that look like, for example,
1019 // "zingo.barf", which might be a good idea anyway....)
1020 if ((((int)chrtab[*ln] & DOT) == 0) || ((int)dotxtab[*ln] <= 0))
1021 return error("[bwsl] must follow `.' in symbol");
1023 v = (VALUE)dotxtab[*ln++];
1025 if ((int)chrtab[*ln] & CTSYM)
1026 return error("misuse of `.', not allowed in symbols");
1029 // If the symbol is small, check to see if it's really the name of
1033 for(state=0; state>=0;)
1035 j = (int)tolowertab[*p++];
1038 if (kwcheck[j] != state)
1044 if (*p == EOS || p == ln)
1058 // Make j = -1 if user tries to use a RISC register while in 68K mode
1059 if (!(rgpu || rdsp) && ((TOKEN)j >= KW_R0 && (TOKEN)j <= KW_R31))
1064 //make j = -1 if time, date etc with no preceeding ^^
1065 //defined, referenced, streq, macdef, date and time
1068 case 112: // defined
1069 case 113: // referenced
1078 // If not tokenized keyword OR token was not found
1079 if (j < 0 || state < 0)
1083 //problem here: nullspot is a char * but TOKEN is a uint32_t. On a 64-bit system,
1084 //this will cause all kinds of mischief.
1086 *tk++ = (TOKEN)nullspot;
1088 string[stringNum] = nullspot;
1099 if (v) // Record attribute token (if any)
1102 if (stuffnull) // Arrange for string termination on next pass
1108 // Handle identity tokens
1115 // Handle multiple-character tokens
1120 case '!': // ! or !=
1130 case '\'': // 'string'
1131 case '\"': // "string"
1135 // More char * stuffing (8 bytes) into the space of 4 (TOKEN).
1136 // Need to figure out how to fix this crap.
1140 string[stringNum] = ln;
1145 for(p=ln; *ln!=EOS && *ln!=c1;)
1154 return(error("unterminated string"));
1183 warn("bad backslash code in string");
1193 return error("unterminated string");
1197 case '$': // $, hex constant
1198 if ((int)chrtab[*ln] & HDIGIT)
1202 while ((int)hextab[*ln] >= 0)
1203 v = (v << 4) + (int)hextab[*ln++];
1207 if ((*(ln + 1) == 'b') || (*(ln + 1) == 'B'))
1213 if ((*(ln + 1) == 'w') || (*(ln + 1) == 'W'))
1219 if ((*(ln + 1) == 'l') || (*(ln + 1) == 'L'))
1232 case '<': // < or << or <> or <=
1251 case ':': // : or ::
1261 case '=': // = or ==
1271 case '>': // > or >> or >=
1286 case '%': // % or binary constant
1287 if (*ln < '0' || *ln > '1')
1295 while (*ln >= '0' && *ln <= '1')
1296 v = (v << 1) + *ln++ - '0';
1300 if ((*(ln + 1) == 'b') || (*(ln + 1) == 'B'))
1306 if ((*(ln + 1) == 'w') || (*(ln + 1) == 'W'))
1312 if ((*(ln + 1) == 'l') || (*(ln + 1) == 'L'))
1321 case '@': // @ or octal constant
1322 if (*ln < '0' || *ln > '7')
1330 while (*ln >= '0' && *ln <= '7')
1331 v = (v << 3) + *ln++ - '0';
1335 if ((*(ln+1) == 'b') || (*(ln+1) == 'B'))
1341 if ((*(ln+1) == 'w') || (*(ln+1) == 'W'))
1347 if ((*(ln+1) == 'l') || (*(ln+1) == 'L'))
1356 case '^': // ^ or ^^ <operator-name>
1363 if (((int)chrtab[*++ln] & STSYM) == 0)
1365 error("invalid symbol following ^^");
1371 while ((int)chrtab[*ln] & CTSYM)
1374 for(state=0; state>=0;)
1376 // Get char, convert to lowercase
1379 if (j >= 'A' && j <= 'Z')
1384 if (kwcheck[j] != state)
1390 if (*p == EOS || p == ln)
1399 if (j < 0 || state < 0)
1401 error("unknown symbol following ^^");
1408 interror(2); // Bad MULTX entry in chrtab
1413 // Handle decimal constant
1418 while ((int)chrtab[*ln] & DIGIT)
1419 v = (v * 10) + *ln++ - '0';
1421 // See if there's a .[bwl] after the constant & deal with it if so
1424 if ((*(ln + 1) == 'b') || (*(ln + 1) == 'B'))
1429 else if ((*(ln + 1) == 'w') || (*(ln + 1) == 'W'))
1434 else if ((*(ln + 1) == 'l') || (*(ln + 1) == 'L'))
1442 //printf("CONST: %i\n", v);
1446 // Handle illegal character
1447 return error("illegal character");
1450 // Terminate line of tokens and return "success."
1453 tok = etok; // Set tok to beginning of line
1455 if (stuffnull) // Terminate last SYMBOL
1465 // .GOTO <label> goto directive
1467 // The label is searched for starting from the first line of the current,
1468 // enclosing macro definition. If no enclosing macro exists, an error is
1471 // A label is of the form:
1473 // :<name><whitespace>
1475 // The colon must appear in column 1. The label is stripped prior to macro
1476 // expansion, and is NOT subject to macro expansion. The whitespace may also
1479 //int d_goto(WORD siz) {
1481 int d_goto(WORD unused)
1483 // char * sym; // Label to search for
1484 // LONG * defln; // Macro definition strings
1485 char * s1; // Temps for string comparison
1487 // IMACRO * imacro; // Macro invocation block
1489 // Setup for the search
1491 return error("missing label");
1493 // sym = (char *)tok[1];
1494 char * sym = string[tok[1]];
1497 if (cur_inobj->in_type != SRC_IMACRO)
1498 return error("goto not in macro");
1500 IMACRO * imacro = cur_inobj->inobj.imacro;
1501 // defln = (LONG *)imacro->im_macro->svalue;
1502 struct LineList * defln = imacro->im_macro->lineList;
1504 // Find the label, starting with the first line.
1505 // for(; defln!=NULL; defln=(LONG *)*defln)
1506 for(; defln!=NULL; defln=defln->next)
1508 // if (*(char *)(defln + 1) == ':')
1509 if (defln->line[0] == ':')
1511 // Compare names (sleazo string compare)
1512 // This string compare is not right. Doesn't check for lengths.
1513 // (actually it does, but in a crappy, unclear way.)
1514 #warning "!!! Bad string comparison !!!"
1516 // s2 = (char *)(defln + 1) + 1;
1530 // Found the label, set new macro next-line and return.
1531 if ((*s2 == EOS) || ((int)chrtab[*s2] & WHITE))
1533 imacro->im_nextln = defln;
1539 return error("goto label not found");
1543 void DumpTokenBuffer(void)
1546 printf("Tokens [%X]: ", sloc);
1548 for(t=tokbuf; *t!=EOL; t++)
1552 else if (*t == CONST)
1555 printf("[CONST: $%X]", (uint32_t)*t);
1557 else if (*t == ACONST)
1559 else if (*t == STRING)
1560 // printf("[STRING]");
1563 printf("[STRING:\"%s\"]", string[*t]);
1565 else if (*t == SYMBOL)
1568 printf("[SYMBOL:\"%s\"]", string[*t]);
1572 else if (*t == TKEOF)
1574 else if (*t == DEQUALS)
1575 printf("[DEQUALS]");
1580 else if (*t == DCOLON)
1592 else if (*t == UNMINUS)
1593 printf("[UNMINUS]");
1594 else if (*t == DOTB)
1596 else if (*t == DOTW)
1598 else if (*t == DOTL)
1600 else if (*t == DOTI)
1602 else if (*t == ENDEXPR)
1603 printf("[ENDEXPR]");
1604 else if (*t == CR_DEFINED)
1605 printf("[CR_DEFINED]");
1606 else if (*t == CR_REFERENCED)
1607 printf("[CR_REFERENCED]");
1608 else if (*t == CR_STREQ)
1609 printf("[CR_STREQ]");
1610 else if (*t == CR_MACDEF)
1611 printf("[CR_MACDEF]");
1612 else if (*t == CR_TIME)
1613 printf("[CR_TIME]");
1614 else if (*t == CR_DATE)
1615 printf("[CR_DATE]");
1616 else if (*t >= 0x20 && *t <= 0x2F)
1617 printf("[%c]", (char)*t);
1618 else if (*t >= 0x3A && *t <= 0x3F)
1619 printf("[%c]", (char)*t);
1620 else if (*t >= 0x80 && *t <= 0x87)
1621 printf("[D%u]", ((uint32_t)*t) - 0x80);
1622 else if (*t >= 0x88 && *t <= 0x8F)
1623 printf("[A%u]", ((uint32_t)*t) - 0x88);
1625 printf("[%X:%c]", (uint32_t)*t, (char)*t);
1626 // printf("[%X]", (uint32_t)*t);