X-Git-Url: http://shamusworld.gotdns.org/cgi-bin/gitweb.cgi?p=rmac;a=blobdiff_plain;f=token.c;h=ac76526e89d6c039635ed9f8358a30f0366abc20;hp=a1d3be8203501a32bb1c5420a6251918aed6f0e9;hb=03dd34951a331e0b8971195ccef1600fffaea2e6;hpb=322522e2a9c1469134226f5d978e7ba900c1893d diff --git a/token.c b/token.c index a1d3be8..ac76526 100644 --- a/token.c +++ b/token.c @@ -1,29 +1,32 @@ // -// RMAC - Reboot's Macro Assembler for the Atari Jaguar Console System +// RMAC - Reboot's Macro Assembler for all Atari computers // TOKEN.C - Token Handling -// Copyright (C) 199x Landon Dyer, 2011-2012 Reboot and Friends +// Copyright (C) 199x Landon Dyer, 2011-2017 Reboot and Friends // RMAC derived from MADMAC v1.07 Written by Landon Dyer, 1986 -// Source Utilised with the Kind Permission of Landon Dyer +// Source utilised with the kind permission of Landon Dyer // #include "token.h" +#include "direct.h" #include "error.h" #include "macro.h" #include "procln.h" +#include "sect.h" #include "symbol.h" #define DECL_KW // Declare keyword arrays -#define DEF_KW // Declare keyword values +#define DEF_KW // Declare keyword values #include "kwtab.h" // Incl generated keyword tables & defs + int lnsave; // 1; strcpy() text of current line -int curlineno; // Current line number +uint16_t curlineno; // Current line number (64K max currently) int totlines; // Total # of lines int mjump_align = 0; // mjump alignment flag char lntag; // Line tag char * curfname; // Current filename -char tolowertab[128]; // Uppercase ==> lowercase -char hextab[128]; // Table of hex values +char tolowertab[128]; // Uppercase ==> lowercase +int8_t hextab[128]; // Table of hex values char dotxtab[128]; // Table for ".b", ".s", etc. char irbuf[LNSIZ]; // Text for .rept block line char lnbuf[LNSIZ]; // Text of current line @@ -53,124 +56,151 @@ static IMACRO * f_imacro; // Ptr list of free IMACROs static TOKEN tokbuf[TOKBUFSIZE]; // Token buffer (stack-like, all files) char chrtab[] = { - ILLEG, ILLEG, ILLEG, ILLEG, // NUL SOH STX ETX - ILLEG, ILLEG, ILLEG, ILLEG, // EOT ENQ ACK BEL - ILLEG, WHITE, ILLEG, ILLEG, // BS HT LF VT - WHITE, ILLEG, ILLEG, ILLEG, // FF CR SO SI + ILLEG, ILLEG, ILLEG, ILLEG, // NUL SOH STX ETX + ILLEG, ILLEG, ILLEG, ILLEG, // EOT ENQ ACK BEL + ILLEG, WHITE, ILLEG, ILLEG, // BS HT LF VT + WHITE, ILLEG, ILLEG, ILLEG, // FF CR SO SI - ILLEG, ILLEG, ILLEG, ILLEG, // DLE DC1 DC2 DC3 - ILLEG, ILLEG, ILLEG, ILLEG, // DC4 NAK SYN ETB - ILLEG, ILLEG, ILLEG, ILLEG, // CAN EM SUB ESC - ILLEG, ILLEG, ILLEG, ILLEG, // FS GS RS US + ILLEG, ILLEG, ILLEG, ILLEG, // DLE DC1 DC2 DC3 + ILLEG, ILLEG, ILLEG, ILLEG, // DC4 NAK SYN ETB + ILLEG, ILLEG, ILLEG, ILLEG, // CAN EM SUB ESC + ILLEG, ILLEG, ILLEG, ILLEG, // FS GS RS US WHITE, MULTX, MULTX, SELF, // SP ! " # MULTX+CTSYM, MULTX, SELF, MULTX, // $ % & ' SELF, SELF, SELF, SELF, // ( ) * + SELF, SELF, STSYM, SELF, // , - . / - DIGIT+HDIGIT+CTSYM, DIGIT+HDIGIT+CTSYM, // 0 1 - DIGIT+HDIGIT+CTSYM, DIGIT+HDIGIT+CTSYM, // 2 3 - DIGIT+HDIGIT+CTSYM, DIGIT+HDIGIT+CTSYM, // 4 5 - DIGIT+HDIGIT+CTSYM, DIGIT+HDIGIT+CTSYM, // 6 7 - DIGIT+HDIGIT+CTSYM, DIGIT+HDIGIT+CTSYM, // 8 9 - MULTX, MULTX, // : ; - MULTX, MULTX, MULTX, STSYM+CTSYM, // < = > ? + DIGIT+HDIGIT+CTSYM, DIGIT+HDIGIT+CTSYM, // 0 1 + DIGIT+HDIGIT+CTSYM, DIGIT+HDIGIT+CTSYM, // 2 3 + DIGIT+HDIGIT+CTSYM, DIGIT+HDIGIT+CTSYM, // 4 5 + DIGIT+HDIGIT+CTSYM, DIGIT+HDIGIT+CTSYM, // 6 7 + DIGIT+HDIGIT+CTSYM, DIGIT+HDIGIT+CTSYM, // 8 9 + MULTX, MULTX, // : ; + MULTX, MULTX, MULTX, STSYM+CTSYM, // < = > ? MULTX, STSYM+CTSYM+HDIGIT, // @ A (char)((BYTE)DOT)+STSYM+CTSYM+HDIGIT, STSYM+CTSYM+HDIGIT, // B C - STSYM+CTSYM+HDIGIT, STSYM+CTSYM+HDIGIT, // D E + (char)((BYTE)DOT)+STSYM+CTSYM+HDIGIT, STSYM+CTSYM+HDIGIT, // D E STSYM+CTSYM+HDIGIT, STSYM+CTSYM, // F G - STSYM+CTSYM, STSYM+CTSYM, STSYM+CTSYM, STSYM+CTSYM, // H I J K + STSYM+CTSYM, (char)((BYTE)DOT)+STSYM+CTSYM, STSYM+CTSYM, STSYM+CTSYM, // H I J K (char)((BYTE)DOT)+STSYM+CTSYM, STSYM+CTSYM, STSYM+CTSYM, STSYM+CTSYM, // L M N O - STSYM+CTSYM, STSYM+CTSYM, STSYM+CTSYM, (char)((BYTE)DOT)+STSYM+CTSYM, // P Q R S + (char)((BYTE)DOT)+STSYM+CTSYM, (char)((BYTE)DOT)+STSYM+CTSYM, STSYM+CTSYM, (char)((BYTE)DOT)+STSYM+CTSYM, // P Q R S STSYM+CTSYM, STSYM+CTSYM, STSYM+CTSYM, (char)((BYTE)DOT)+STSYM+CTSYM, // T U V W STSYM+CTSYM, STSYM+CTSYM, STSYM+CTSYM, SELF, // X Y Z [ SELF, SELF, MULTX, STSYM+CTSYM, // \ ] ^ _ ILLEG, STSYM+CTSYM+HDIGIT, // ` a (char)((BYTE)DOT)+STSYM+CTSYM+HDIGIT, STSYM+CTSYM+HDIGIT, // b c - STSYM+CTSYM+HDIGIT, STSYM+CTSYM+HDIGIT, // d e + (char)((BYTE)DOT)+STSYM+CTSYM+HDIGIT, STSYM+CTSYM+HDIGIT, // d e STSYM+CTSYM+HDIGIT, STSYM+CTSYM, // f g - STSYM+CTSYM, STSYM+CTSYM, STSYM+CTSYM, STSYM+CTSYM, // h i j k + STSYM+CTSYM, (char)((BYTE)DOT)+STSYM+CTSYM, STSYM+CTSYM, STSYM+CTSYM, // h i j k (char)((BYTE)DOT)+STSYM+CTSYM, STSYM+CTSYM, STSYM+CTSYM, STSYM+CTSYM, // l m n o - STSYM+CTSYM, STSYM+CTSYM, STSYM+CTSYM, (char)((BYTE)DOT)+STSYM+CTSYM, // p q r s - STSYM+CTSYM, STSYM+CTSYM, STSYM+CTSYM, (char)((BYTE)DOT)+STSYM+CTSYM, // t u v w - STSYM+CTSYM, STSYM+CTSYM, STSYM+CTSYM, SELF, // x y z { - SELF, SELF, SELF, ILLEG // | } ~ DEL + (char)((BYTE)DOT)+STSYM+CTSYM, (char)((BYTE)DOT)+STSYM+CTSYM, STSYM+CTSYM, (char)((BYTE)DOT)+STSYM+CTSYM, // p q r s + STSYM+CTSYM, STSYM+CTSYM, STSYM+CTSYM, (char)((BYTE)DOT)+STSYM+CTSYM, // t u v w + (char)((BYTE)DOT)+STSYM+CTSYM, STSYM+CTSYM, STSYM+CTSYM, SELF, // x y z { + SELF, SELF, SELF, ILLEG // | } ~ DEL }; // Names of registers static char * regname[] = { - "d0", "d1", "d2", "d3", "d4", "d5", "d6", "d7", - "a0", "a1", "a2", "a3", "a4", "a5", "a6", "a7", - "pc", "ssp", "usp", "sr", "ccr" + "d0","d1","d2","d3","d4","d5","d6","d7", // 128,135 + "a0","a1","a2","a3","a4","a5","a6","sp", // 136,143 + "ssp","pc","sr","ccr","regequ","set","reg","r0", // 144,151 + "r1","r2","r3","r4","r5","r6","r7","r8", // 152,159 + "r9","r10","r11","r12","r13","r14","r15","r16", // 160,167 + "r17","r18","r19","r20","r21","r22","r23","r24", // 168,175 + "r25","r26","r27","r28","r29","r30","r31","ccdef", // 176,183 + "usp","ic40","dc40","bc40","sfc","dfc","","vbr", // 184,191 + "cacr","caar","msp","isp","tc","itt0","itt1","dtt0", // 192,199 + "dtt1","mmusr","urp","srp","iacr0","iacr1","dacr0","dacr1", // 200,207 + "tt0","tt1","crp","","","","","", // 208,215 + "","","","","fpiar","fpsr","fpcr","", // 216,223 + "fp0","fp1","fp2","fp3","fp4","fp5","fp6","fp7", // 224,231 + "","","","","","","","", // 232,239 + "","","","","","","","", // 240,247 + "","","","","","","","", // 248,255 + "","","","","x0","x1","y0","y1", // 256,263 + "","b0","","b2","","b1","a","b", // 264,271 + "mr","omr","la","lc","ssh","ssl","ss","", // 272,279 + "n0","n1","n2","n3","n4","n5","n6","n7", // 280,287 + "m0","m1","m2","m3","m4","m5","m6","m7", // 288,295 + "","","","","","","l","p", // 296,303 + "mr","omr","la","lc","ssh","ssl","ss","", // 304,311 + "a10","b10","x","y","","","ab","ba" // 312,319 }; static char * riscregname[] = { - "r0", "r1", "r2", "r3", "r4", "r5", "r6", "r7", + "r0", "r1", "r2", "r3", "r4", "r5", "r6", "r7", "r8", "r9", "r10", "r11", "r12", "r13", "r14", "r15", "r16", "r17", "r18", "r19", "r20", "r21", "r22", "r23", "r24", "r25", "r26", "r27", "r28", "r29", "r30", "r31" }; -// Removing this, provided it doesn't cause unwanted side-effects :-P -#if 0 // -// Make `fnum' the Current `curfname' -// NOTE: This is currently only called from error() in error.c +// Initialize tokenizer // -void setfnum(WORD fnum) +void InitTokenizer(void) { -#if 0 - // NOTE: fnum is ZERO based, this can cause problems if you're not careful! - FILEREC * fr = filerec; + int i; // Iterator + char * htab = "0123456789abcdefABCDEF"; // Hex character table - DEBUG printf("[setfnum: fnum=%u]\n", fnum); + lnsave = 0; // Don't save lines + curfname = ""; // No file, empty filename + filecount = (WORD)-1; + cfileno = (WORD)-1; // cfileno gets bumped to 0 + curlineno = 0; + totlines = 0; + etok = tokbuf; + f_inobj = NULL; + f_ifile = NULL; + f_imacro = NULL; + cur_inobj = NULL; + filerec = NULL; + last_fr = NULL; + lntag = SPACE; - // Advance to the correct record... - while (fr != NULL && fnum != 0) + // Initialize hex, "dot" and tolower tables + for(i=0; i<128; i++) { - fr = fr->frec_next; - fnum--; + hextab[i] = -1; + dotxtab[i] = 0; + tolowertab[i] = (char)i; } - if (fr == NULL) - curfname = "(*top*)"; - else - curfname = fr->frec_name; - - DEBUG printf("[setfnum: curfname=%s]\n", curfname); -#else - // Check for absolute top filename (this should never happen) - if (fnum == -1) - { - curfname = "(*top*)"; - return; - } + for(i=0; htab[i]!=EOS; i++) + hextab[htab[i]] = (char)((i < 16) ? i : i - 6); - FILEREC * fr = filerec; + for(i='A'; i<='Z'; i++) + tolowertab[i] |= 0x20; - // Advance to the correct record... - while (fr != NULL && fnum != 0) - { - fr = fr->frec_next; - fnum--; - } + // These characters are legal immediately after a period + dotxtab['b'] = DOTB; // .b .B .s .S + dotxtab['B'] = DOTB; + //dotxtab['s'] = DOTB; + //dotxtab['S'] = DOTB; + dotxtab['w'] = DOTW; // .w .W + dotxtab['W'] = DOTW; + dotxtab['l'] = DOTL; // .l .L + dotxtab['L'] = DOTL; + dotxtab['i'] = DOTI; // .i .I (???) + dotxtab['I'] = DOTI; + dotxtab['D'] = DOTD; // .d .D (quad word) + dotxtab['d'] = DOTD; + dotxtab['S'] = DOTS; // .s .S + dotxtab['s'] = DOTS; + dotxtab['Q'] = DOTQ; // .q .Q + dotxtab['q'] = DOTQ; + dotxtab['X'] = DOTX; // .x .x + dotxtab['x'] = DOTX; + dotxtab['P'] = DOTP; // .p .P + dotxtab['p'] = DOTP; +} - // Check for file # record not found (this should never happen either) - if (fr == NULL) - { - curfname = "(*NOT FOUND*)"; - return; - } - curfname = fr->frec_name; -#endif -} -#else void SetFilenameForErrorReporting(void) { WORD fnum = cfileno; @@ -200,7 +230,6 @@ void SetFilenameForErrorReporting(void) curfname = fr->frec_name; } -#endif // @@ -234,7 +263,7 @@ INOBJ * a_inobj(int typ) inobj->inobj.ifile = ifile; break; - case SRC_IMACRO: // Alloc and init an IMACRO + case SRC_IMACRO: // Alloc and init an IMACRO if (f_imacro == NULL) imacro = malloc(sizeof(IMACRO)); else @@ -292,7 +321,6 @@ int ExpandMacro(char * src, char * dest, int destsiz) IMACRO * imacro = cur_inobj->inobj.imacro; int macnum = (int)(imacro->im_macro->sattr); -// destsiz--; char * dst = dest; // Next dest slot char * edst = dest + destsiz - 1; // End + 1(?) of dest buffer @@ -318,6 +346,11 @@ int ExpandMacro(char * src, char * dest, int destsiz) if (dst >= edst) goto overflow; + // Skip comments in case a loose @ or \ is in there + // In that case the tokeniser was trying to expand it. + if ((*s == ';') || ((*s == '/') && (*(s + 1) == '/'))) + goto skipcomments; + *dst++ = *s++; } // Do macro expansion @@ -334,11 +367,11 @@ int ExpandMacro(char * src, char * dest, int destsiz) *dst++ = *s++; continue; - case '?': // \? set `questmark' flag + case '?': // \? set `questmark' flag ++s; questmark = 1; break; - case '#': // \#, number of arguments + case '#': // \#, number of arguments sprintf(numbuf, "%d", (int)imacro->im_nargs); goto copystr; case '!': // \! size suffix supplied on invocation @@ -351,7 +384,7 @@ int ExpandMacro(char * src, char * dest, int destsiz) } goto copy_d; - case '~': // ==> unique label string Mnnnn... + case '~': // ==> unique label string Mnnnn... sprintf(numbuf, "M%u", curuniq); copystr: d = numbuf; @@ -456,7 +489,8 @@ arg_num: continue; } - if (tk != NULL) // arg # is in range, so expand it + // Argument # is in range, so expand it + if (tk != NULL) { while (*tk != EOL) { @@ -514,11 +548,11 @@ DEBUG printf("ExM: SYMBOL=\"%s\"", d); *dst++ = '"'; continue; break; -// Shamus: Changing the format specifier from %lx to %ux caused -// the assembler to choke on legitimate code... Need to investigate -// this further before changing anything else here! +// Shamus: Changing the format specifier from %lx to %ux caused the assembler +// to choke on legitimate code... Need to investigate this further +// before changing anything else here! case CONST: - sprintf(numbuf, "$%lx", (LONG)*tk++); + sprintf(numbuf, "$%lx", (long unsigned int)*tk++); d = numbuf; break; case DEQUALS: @@ -557,6 +591,9 @@ DEBUG printf("ExM: SYMBOL=\"%s\"", d); case DOTL: d = ".l"; break; + case CR_ABSCOUNT: + d = "^^abscount"; + break; case CR_DATE: d = "^^date"; break; @@ -604,6 +641,8 @@ strcopy: } } +skipcomments: + *dst = EOS; DEBUG { printf("ExM: dst=\"%s\"\n", dest); } return OK; @@ -616,12 +655,10 @@ overflow: // -// Get Next Line of Text from a Macro +// Get next line of text from a macro // -char * getmln(void) +char * GetNextMacroLine(void) { - unsigned source_addr; - IMACRO * imacro = cur_inobj->inobj.imacro; // LONG * strp = imacro->im_nextln; struct LineList * strp = imacro->im_nextln; @@ -629,45 +666,19 @@ char * getmln(void) if (strp == NULL) // End-of-macro return NULL; -// imacro->im_nextln = (LONG *)*strp; imacro->im_nextln = strp->next; // ExpandMacro((char *)(strp + 1), imacro->im_lnbuf, LNSIZ); ExpandMacro(strp->line, imacro->im_lnbuf, LNSIZ); - if (!strcmp(imacro->im_macro->sname, "mjump") && !mjump_align) - { - // if we need to adjust the alignment of the jump source address to - // meet the rules of gpu main execution we need to skip the first nop - // of the macro. This is simpler than trying to insert nop's mid macro. - source_addr = (orgactive ? orgaddr : sloc); - source_addr += 8; - - if (source_addr % 4) - { - strp = imacro->im_nextln; - - if (strp == NULL) - return NULL; - -// imacro->im_nextln = (LONG *)*strp; -// ExpandMacro((char *)(strp + 1), imacro->im_lnbuf, LNSIZ); - imacro->im_nextln = strp->next; - ExpandMacro(strp->line, imacro->im_lnbuf, LNSIZ); - } - - mjump_align = 1; - } - return imacro->im_lnbuf; } // -// Get Next Line of Text from a Repeat Block +// Get next line of text from a repeat block // -char * getrln(void) +char * GetNextRepeatLine(void) { - IREPT * irept = cur_inobj->inobj.irept; LONG * strp = irept->ir_nextln; // initial null @@ -683,7 +694,7 @@ char * getrln(void) return NULL; } - strp = irept->ir_nextln; //strp + strp = irept->ir_nextln; } strcpy(irbuf, (char *)(irept->ir_nextln + 1)); @@ -695,21 +706,17 @@ char * getrln(void) // -// Include a Source File used at the Root, and for ".include" Files +// Include a source file used at the root, and for ".include" files // int include(int handle, char * fname) { - IFILE * ifile; - INOBJ * inobj; - FILEREC * fr; - - // Verbose mode - if (verb_flag) + // Debug mode + if (debug) printf("[include: %s, cfileno=%u]\n", fname, cfileno); // Alloc and initialize include-descriptors - inobj = a_inobj(SRC_IFILE); - ifile = inobj->inobj.ifile; + INOBJ * inobj = a_inobj(SRC_IFILE); + IFILE * ifile = inobj->inobj.ifile; ifile->ifhandle = handle; // Setup file handle ifile->ifind = ifile->ifcnt = 0; // Setup buffer indices @@ -717,21 +724,20 @@ int include(int handle, char * fname) ifile->ifoldfname = curfname; // Save old filename ifile->ifno = cfileno; // Save old file number -// cfileno = filecount++; // Compute new file number // NB: This *must* be preincrement, we're adding one to the filecount here! cfileno = ++filecount; // Compute NEW file number curfname = strdup(fname); // Set current filename (alloc storage) curlineno = 0; // Start on line zero // Add another file to the file-record - fr = (FILEREC *)malloc(sizeof(FILEREC)); + FILEREC * fr = (FILEREC *)malloc(sizeof(FILEREC)); fr->frec_next = NULL; fr->frec_name = curfname; if (last_fr == NULL) - filerec = fr; // Add first filerec + filerec = fr; // Add first filerec else - last_fr->frec_next = fr; // Append to list of filerecs + last_fr->frec_next = fr; // Append to list of filerecs last_fr = fr; DEBUG printf("[include: curfname: %s, cfileno=%u]\n", curfname, cfileno); @@ -741,58 +747,7 @@ int include(int handle, char * fname) // -// Initialize Tokenizer -// -void init_token(void) -{ - int i; // Iterator - char * htab = "0123456789abcdefABCDEF"; // Hex character table - - lnsave = 0; // Don't save lines - curfname = ""; // No file, empty filename - filecount = (WORD)-1; - cfileno = (WORD)-1; // cfileno gets bumped to 0 - curlineno = 0; - totlines = 0; - etok = tokbuf; - f_inobj = NULL; - f_ifile = NULL; - f_imacro = NULL; - cur_inobj = NULL; - filerec = NULL; - last_fr = NULL; - lntag = SPACE; - - // Initialize hex, "dot" and tolower tables - for(i=0; i<128; i++) - { - hextab[i] = -1; - dotxtab[i] = 0; - tolowertab[i] = (char)i; - } - - for(i=0; htab[i]!=EOS; i++) - hextab[htab[i]] = (char)((i < 16) ? i : i - 6); - - for(i='A'; i<='Z'; i++) - tolowertab[i] |= 0x20; - - // These characters are legal immediately after a period - dotxtab['b'] = DOTB; // .b .B .s .S - dotxtab['B'] = DOTB; - dotxtab['s'] = DOTB; - dotxtab['S'] = DOTB; - dotxtab['w'] = DOTW; // .w .W - dotxtab['W'] = DOTW; - dotxtab['l'] = DOTL; // .l .L - dotxtab['L'] = DOTL; - dotxtab['I'] = DOTI; // .l .L - dotxtab['I'] = DOTI; -} - - -// -// Pop the Current Input Level +// Pop the current input level // int fpop(void) { @@ -805,30 +760,41 @@ int fpop(void) { // Pop IFENT levels until we reach the conditional assembly context we // were at when the input object was entered. + int numUnmatched = 0; + while (ifent != inobj->in_ifent) - d_endif(); + { + if (d_endif() != 0) // Something bad happened during endif parsing? + return -1; // If yes, bail instead of getting stuck in a loop - tok = inobj->in_otok; // Restore tok and otok + numUnmatched++; + } + + // Give a warning to the user that we had to wipe their bum for them + if (numUnmatched > 0) + warni("missing %d .endif(s)", numUnmatched); + + tok = inobj->in_otok; // Restore tok and otok etok = inobj->in_etok; switch (inobj->in_type) { - case SRC_IFILE: // Pop and release an IFILE - if (verb_flag) + case SRC_IFILE: // Pop and release an IFILE + if (debug) printf("[Leaving: %s]\n", curfname); ifile = inobj->inobj.ifile; ifile->if_link = f_ifile; f_ifile = ifile; close(ifile->ifhandle); // Close source file -if (verb_flag) printf("[fpop (pre): curfname=%s]\n", curfname); +if (debug) printf("[fpop (pre): curfname=%s]\n", curfname); curfname = ifile->ifoldfname; // Set current filename -if (verb_flag) printf("[fpop (post): curfname=%s]\n", curfname); -if (verb_flag) printf("[fpop: (pre) cfileno=%d ifile->ifno=%d]\n", (int)cfileno, (int)ifile->ifno); - curlineno = ifile->ifoldlineno; // Set current line# +if (debug) printf("[fpop (post): curfname=%s]\n", curfname); +if (debug) printf("[fpop: (pre) cfileno=%d ifile->ifno=%d]\n", (int)cfileno, (int)ifile->ifno); + curlineno = ifile->ifoldlineno; // Set current line# DEBUG printf("cfileno=%d ifile->ifno=%d\n", (int)cfileno, (int)ifile->ifno); cfileno = ifile->ifno; // Restore current file number -if (verb_flag) printf("[fpop: (post) cfileno=%d ifile->ifno=%d]\n", (int)cfileno, (int)ifile->ifno); +if (debug) printf("[fpop: (post) cfileno=%d ifile->ifno=%d]\n", (int)cfileno, (int)ifile->ifno); break; case SRC_IMACRO: // Pop and release an IMACRO imacro = inobj->inobj.imacro; @@ -861,7 +827,7 @@ if (verb_flag) printf("[fpop: (post) cfileno=%d ifile->ifno=%d]\n", (int)cfileno // Get line from file into buf, return NULL on EOF or ptr to the start of a // null-term line // -char * getln(void) +char * GetNextLine(void) { int i, j; char * p, * d; @@ -873,11 +839,9 @@ char * getln(void) // Scan for next end-of-line; handle stupid text formats by treating // \r\n the same as \n. (lone '\r' at end of buffer means we have to // check for '\n'). - i = 0; - j = fl->ifcnt; d = &fl->ifbuf[fl->ifind]; - for(p=d; iifcnt; i= j) - { - break; // Look for '\n' to eat - } + break; // Need to read more, then look for '\n' to eat else if (p[1] == '\n') - { i++; - } } + // Cover up the newline with end-of-string sentinel *p = '\0'; fl->ifind += i; @@ -905,11 +866,20 @@ char * getln(void) // Handle hanging lines by ignoring them (Input file is exhausted, no // \r or \n on last line) + // Shamus: This is retarded. Never ignore any input! if (!readamt && fl->ifcnt) { +#if 0 fl->ifcnt = 0; *p = '\0'; return NULL; +#else + // Really should check to see if we're at the end of the buffer! + // :-P + fl->ifbuf[fl->ifind + fl->ifcnt] = '\0'; + fl->ifcnt = 0; + return &fl->ifbuf[fl->ifind]; +#endif } // Truncate and return absurdly long lines. @@ -934,7 +904,9 @@ char * getln(void) fl->ifind = fl->ifcnt & 1; } - if ((readamt = read(fl->ifhandle, &fl->ifbuf[fl->ifind + fl->ifcnt], QUANTUM)) < 0) + readamt = read(fl->ifhandle, &fl->ifbuf[fl->ifind + fl->ifcnt], QUANTUM); + + if (readamt < 0) return NULL; if ((fl->ifcnt += readamt) == 0) @@ -944,29 +916,29 @@ char * getln(void) // -// Tokenize a Line +// Tokenize a line // -int tokln(void) +int TokenizeLine(void) { - char * ln = NULL; // Ptr to current position in line - char * p; // Random character ptr - TOKEN * tk; // Token-deposit ptr - int state = 0; // State for keyword detector - int j = 0; // Var for keyword detector - char c; // Random char - VALUE v; // Random value - char * nullspot = NULL; // Spot to clobber for SYMBOL terminatn - int stuffnull; // 1:terminate SYMBOL '\0' at *nullspot + char * ln = NULL; // Ptr to current position in line + char * p; // Random character ptr + TOKEN * tk; // Token-deposit ptr + int state = 0; // State for keyword detector + int j = 0; // Var for keyword detector + char c; // Random char + VALUE v; // Random value + char * nullspot = NULL; // Spot to clobber for SYMBOL termination + int stuffnull; // 1:terminate SYMBOL '\0' at *nullspot char c1; - int stringNum = 0; // Pointer to string locations in tokenized line + int stringNum = 0; // Pointer to string locations in tokenized line - retry: +retry: if (cur_inobj == NULL) // Return EOF if input stack is empty return TKEOF; - // Get another line of input from the current input source: a file, - // a macro, or a repeat-block + // Get another line of input from the current input source: a file, a + // macro, or a repeat-block switch (cur_inobj->in_type) { // Include-file: @@ -975,11 +947,16 @@ int tokln(void) // o tag the listing-line with a space; // o kludge lines generated by Alcyon C. case SRC_IFILE: - if ((ln = getln()) == NULL) + if ((ln = GetNextLine()) == NULL) { -if (verb_flag) printf("tokln: Calling fpop() from SRC_IFILE...\n"); - fpop(); // Pop input level - goto retry; // Try for more lines +if (debug) printf("TokenizeLine: Calling fpop() from SRC_IFILE...\n"); + if (fpop() == 0) // Pop input level + goto retry; // Try for more lines + else + { + ifent->if_prev = (IFENT *) - 1; //Signal Assemble() that we have reached EOF with unbalanced if/endifs + return TKEOF; + } } curlineno++; // Bump line number @@ -1010,10 +987,12 @@ if (verb_flag) printf("tokln: Calling fpop() from SRC_IFILE...\n"); // o Handle end-of-macro; // o tag the listing-line with an at (@) sign. case SRC_IMACRO: - if ((ln = getmln()) == NULL) + if ((ln = GetNextMacroLine()) == NULL) { - ExitMacro(); // Exit macro (pop args, do fpop(), etc) - goto retry; // Try for more lines... + if (ExitMacro() == 0) // Exit macro (pop args, do fpop(), etc) + goto retry; // Try for more lines... + else + return TKEOF; // Oops, we got a non zero return code, signal EOF } lntag = '@'; @@ -1022,9 +1001,9 @@ if (verb_flag) printf("tokln: Calling fpop() from SRC_IFILE...\n"); // o Handle end-of-repeat-block; // o tag the listing-line with a pound (#) sign. case SRC_IREPT: - if ((ln = getrln()) == NULL) + if ((ln = GetNextRepeatLine()) == NULL) { -if (verb_flag) printf("tokln: Calling fpop() from SRC_IREPT...\n"); +if (debug) printf("TokenizeLine: Calling fpop() from SRC_IREPT...\n"); fpop(); goto retry; } @@ -1040,10 +1019,10 @@ if (verb_flag) printf("tokln: Calling fpop() from SRC_IREPT...\n"); strcpy(lnbuf, ln); // General house-keeping - tok = tokeol; // Set "tok" to EOL in case of error - tk = etok; // Reset token ptr - stuffnull = 0; // Don't stuff nulls - totlines++; // Bump total #lines assembled + tok = tokeol; // Set "tok" to EOL in case of error + tk = etok; // Reset token ptr + stuffnull = 0; // Don't stuff nulls + totlines++; // Bump total #lines assembled // See if the entire line is a comment. This is a win if the programmer // puts in lots of comments @@ -1063,7 +1042,7 @@ if (verb_flag) printf("tokln: Calling fpop() from SRC_IREPT...\n"); ln++; // Handle EOL, comment with ';' - if (*ln == EOS || *ln == ';'|| ((*ln == '/') && (*(ln + 1) == '/'))) + if (*ln == EOS || *ln == ';'|| ((*ln == '/') && (*(ln + 1) == '/'))) break; // Handle start of symbol. Symbols are null-terminated in place. The @@ -1073,12 +1052,33 @@ if (verb_flag) printf("tokln: Calling fpop() from SRC_IREPT...\n"); if (c & STSYM) { - if (stuffnull) // Terminate old symbol from previous pass + if (stuffnull) // Terminate old symbol from previous pass *nullspot = EOS; - v = 0; // Assume no DOT attrib follows symbol + v = 0; // Assume no DOT attrib follows symbol stuffnull = 1; - p = nullspot = ln++; // Nullspot -> start of this symbol + + // In some cases, we need to check for a DOTx at the *beginning* + // of a symbol, as the "start" of the line we're currently looking + // at could be somewhere in the middle of that line! + if (*ln == '.') + { + // Make sure that it's *only* a .[bwsl] following, and not the + // start of a local symbol: + if ((chrtab[*(ln + 1)] & DOT) + && (dotxtab[*(ln + 1)] != 0) + && !(chrtab[*(ln + 2)] & CTSYM)) + { + // We found a legitimate DOTx construct, so add it to the + // token stream: + ln++; + stuffnull = 0; + *tk++ = (TOKEN)dotxtab[*ln++]; + continue; + } + } + + p = nullspot = ln++; // Nullspot -> start of this symbol // Find end of symbol (and compute its length) for(j=1; (int)chrtab[*ln]&CTSYM; j++) @@ -1088,20 +1088,20 @@ if (verb_flag) printf("tokln: Calling fpop() from SRC_IREPT...\n"); // symbol or keyword: if (*ln == '.') { - *ln++ = EOS; // Terminate symbol - stuffnull = 0; // And never try it again + *ln++ = EOS; // Terminate symbol + stuffnull = 0; // And never try it again // Character following the `.' must have a DOT attribute, and // the chararacter after THAT one must not have a start-symbol // attribute (to prevent symbols that look like, for example, // "zingo.barf", which might be a good idea anyway....) - if ((((int)chrtab[*ln] & DOT) == 0) || ((int)dotxtab[*ln] <= 0)) - return error("[bwsl] must follow `.' in symbol"); + if (((chrtab[*ln] & DOT) == 0) || (dotxtab[*ln] == 0)) + return error("[bwsl] must follow '.' in symbol"); v = (VALUE)dotxtab[*ln++]; - if ((int)chrtab[*ln] & CTSYM) - return error("misuse of `.', not allowed in symbols"); + if (chrtab[*ln] & CTSYM) + return error("misuse of '.', not allowed in symbols"); } // If the symbol is small, check to see if it's really the name of @@ -1133,8 +1133,14 @@ if (verb_flag) printf("tokln: Calling fpop() from SRC_IREPT...\n"); j = -1; } - //make j = -1 if time, date etc with no preceeding ^^ - //defined, referenced, streq, macdef, date and time + // Make j = -1 if user tries to use a RISC register while in 68K mode + if (!(rgpu || rdsp) && ((TOKEN)j >= KW_R0 && (TOKEN)j <= KW_R31)) + { + j = -1; + } + + // Make j = -1 if time, date etc with no preceeding ^^ + // defined, referenced, streq, macdef, date and time switch ((TOKEN)j) { case 112: // defined @@ -1144,15 +1150,15 @@ if (verb_flag) printf("tokln: Calling fpop() from SRC_IREPT...\n"); case 120: // time case 121: // date j = -1; - break; } - if (j < 0 || state < 0) + // If not tokenized keyword OR token was not found + if ((j < 0) || (state < 0)) { *tk++ = SYMBOL; //#warning -//problem here: nullspot is a char * but TOKEN is a uint32_t. On a 64-bit system, -//this will cause all kinds of mischief. +//problem here: nullspot is a char * but TOKEN is a uint32_t. On a 64-bit +//system, this will cause all kinds of mischief. #if 0 *tk++ = (TOKEN)nullspot; #else @@ -1186,9 +1192,10 @@ if (verb_flag) printf("tokln: Calling fpop() from SRC_IREPT...\n"); // Handle multiple-character tokens if (c & MULTX) { + switch (*ln++) { - case '!': // ! or != + case '!': // ! or != if (*ln == '=') { *tk++ = NE; @@ -1198,20 +1205,21 @@ if (verb_flag) printf("tokln: Calling fpop() from SRC_IREPT...\n"); *tk++ = '!'; continue; - case '\'': // 'string' - case '\"': // "string" - c1 = ln[-1]; + case '\'': // 'string' + if (m6502) + { + // Hardcoded for now, maybe this will change in the future + *tk++ = STRINGA8; + goto dostring; + } + // Fall through + case '\"': // "string" *tk++ = STRING; -//#warning -// More char * stuffing (8 bytes) into the space of 4 (TOKEN). -// Need to figure out how to fix this crap. -#if 0 - *tk++ = (TOKEN)ln; -#else +dostring: + c1 = ln[-1]; string[stringNum] = ln; *tk++ = stringNum; stringNum++; -#endif for(p=ln; *ln!=EOS && *ln!=c1;) { @@ -1252,7 +1260,7 @@ if (verb_flag) printf("tokln: Calling fpop() from SRC_IREPT...\n"); break; default: warn("bad backslash code in string"); - --ln; + ln--; break; } } @@ -1265,42 +1273,61 @@ if (verb_flag) printf("tokln: Calling fpop() from SRC_IREPT...\n"); *p++ = EOS; continue; - case '$': // $, hex constant - if ((int)chrtab[*ln] & HDIGIT) + case '$': // $, hex constant + if (chrtab[*ln] & HDIGIT) { v = 0; - while ((int)hextab[*ln] >= 0) + // Parse the hex value + while (hextab[*ln] >= 0) v = (v << 4) + (int)hextab[*ln++]; if (*ln == '.') { - if ((*(ln+1) == 'b') || (*(ln+1) == 'B')) + if (obj_format == BSD) { - v &= 0x000000FF; - ln += 2; + if ((*(ln + 1) & 0xDF) == 'B') + { + v &= 0x000000FF; + ln += 2; + } + else if ((*(ln + 1) & 0xDF) == 'W') + { + v &= 0x0000FFFF; + ln += 2; + } + else if ((*(ln + 1) & 0xDF) == 'L') + { + ln += 2; + } } + } - if ((*(ln+1) == 'w') || (*(ln+1) == 'W')) - { - v &= 0x0000FFFF; - ln += 2; - } + *tk++ = CONST; + *tk++ = v; - if ((*(ln+1) == 'l') || (*(ln+1) == 'L')) + if (obj_format == ALCYON) + { + if (*ln == '.') { - ln += 2; + if ((*(ln + 1) == 'w') || (*(ln + 1) == 'W')) + { + *tk++ = DOTW; + ln += 2; + } + else if ((*(ln + 1) == 'l') || (*(ln + 1) == 'L')) + { + *tk++ = DOTL; + ln += 2; + } } } - - *tk++ = CONST; - *tk++ = v; } else *tk++ = '$'; continue; - case '<': // < or << or <> or <= + case '<': // < or << or <> or <= switch (*ln) { case '<': @@ -1319,7 +1346,7 @@ if (verb_flag) printf("tokln: Calling fpop() from SRC_IREPT...\n"); *tk++ = '<'; continue; } - case ':': // : or :: + case ':': // : or :: if (*ln == ':') { *tk++ = DCOLON; @@ -1329,7 +1356,7 @@ if (verb_flag) printf("tokln: Calling fpop() from SRC_IREPT...\n"); *tk++ = ':'; continue; - case '=': // = or == + case '=': // = or == if (*ln == '=') { *tk++ = DEQUALS; @@ -1339,22 +1366,22 @@ if (verb_flag) printf("tokln: Calling fpop() from SRC_IREPT...\n"); *tk++ = '='; continue; - case '>': // > or >> or >= + case '>': // > or >> or >= switch (*ln) { case '>': *tk++ = SHR; - ++ln; + ln++; continue; case '=': *tk++ = GE; - ++ln; + ln++; continue; default: *tk++ = '>'; continue; } - case '%': // % or binary constant + case '%': // % or binary constant if (*ln < '0' || *ln > '1') { *tk++ = '%'; @@ -1389,7 +1416,7 @@ if (verb_flag) printf("tokln: Calling fpop() from SRC_IREPT...\n"); *tk++ = CONST; *tk++ = v; continue; - case '@': // @ or octal constant + case '@': // @ or octal constant if (*ln < '0' || *ln > '7') { *tk++ = '@'; @@ -1424,7 +1451,7 @@ if (verb_flag) printf("tokln: Calling fpop() from SRC_IREPT...\n"); *tk++ = CONST; *tk++ = v; continue; - case '^': // ^ or ^^ + case '^': // ^ or ^^ if (*ln != '^') { *tk++ = '^'; @@ -1444,7 +1471,7 @@ if (verb_flag) printf("tokln: Calling fpop() from SRC_IREPT...\n"); for(state=0; state>=0;) { - // Get char, convert to lowercase + // Get char, convert to lowercase j = *p++; if (j >= 'A' && j <= 'Z') @@ -1476,7 +1503,7 @@ if (verb_flag) printf("tokln: Calling fpop() from SRC_IREPT...\n"); *tk++ = (TOKEN)j; continue; default: - interror(2); // Bad MULTX entry in chrtab + interror(2); // Bad MULTX entry in chrtab continue; } } @@ -1489,22 +1516,20 @@ if (verb_flag) printf("tokln: Calling fpop() from SRC_IREPT...\n"); while ((int)chrtab[*ln] & DIGIT) v = (v * 10) + *ln++ - '0'; - // See if there's a .[bwl] after the constant, & deal with it + // See if there's a .[bwl] after the constant & deal with it if so if (*ln == '.') { - if ((*(ln+1) == 'b') || (*(ln+1) == 'B')) + if ((*(ln + 1) == 'b') || (*(ln + 1) == 'B')) { v &= 0x000000FF; ln += 2; } - - if ((*(ln+1) == 'w') || (*(ln+1) == 'W')) + else if ((*(ln + 1) == 'w') || (*(ln + 1) == 'W')) { v &= 0x0000FFFF; ln += 2; } - - if ((*(ln+1) == 'l') || (*(ln+1) == 'L')) + else if ((*(ln + 1) == 'l') || (*(ln + 1) == 'L')) { ln += 2; } @@ -1512,6 +1537,7 @@ if (verb_flag) printf("tokln: Calling fpop() from SRC_IREPT...\n"); *tk++ = CONST; *tk++ = v; +//printf("CONST: %i\n", v); continue; } @@ -1535,34 +1561,25 @@ goteol: // // .GOTO