Mercurial > hg > Members > kono > os9 > sbc09
annotate a09.c @ 33:7c5379eb406e
nitors9 version
| author | Shinji KONO <kono@ie.u-ryukyu.ac.jp> |
|---|---|
| date | Sat, 14 Jul 2018 15:22:54 +0900 |
| parents | 3c14d647bb51 |
| children | 2032755628dc |
| rev | line source |
|---|---|
| 33 | 1 /* A09, 6809 Assembler2 |
| 0 | 2 |
| 3 created 1993,1994 by L.C. Benschop. | |
| 4 copyleft (c) 1994-2014 by the sbc09 team, see AUTHORS for more details. | |
| 5 license: GNU General Public License version 2, see LICENSE for more details. | |
| 6 THERE IS NO WARRANTY ON THIS PROGRAM. | |
| 7 | |
| 8 Generates binary image file from the lowest to | |
| 9 the highest address with actually assembled data. | |
| 10 | |
| 5 | 11 Machin edependencies: |
| 0 | 12 char is 8 bits. |
| 13 short is 16 bits. | |
| 14 integer arithmetic is twos complement. | |
| 15 | |
| 16 syntax a09 [-o filename] [-l filename] sourcefile. | |
| 17 | |
| 18 Options | |
| 19 -o filename name of the output file (default name minus a09 suffix) | |
| 20 -s filename name of the s-record output file (default its a binary file) | |
| 21 -l filename list file name (default no listing) | |
| 22 -d enable debugging | |
| 23 | |
| 24 recognized pseudoops: | |
| 25 extern public | |
| 26 macro endm if else endif | |
| 27 org equ set setdp | |
| 28 fcb fcw fdb fcc rmb | |
| 29 end include title | |
| 30 | |
| 31 Not all of these are actually IMPLEMENTED!!!!!! | |
| 32 | |
| 33 Revisions: | |
| 34 1993-11-03 v0.1 | |
| 35 Initial version. | |
| 36 1994/03/21 v0.2 | |
| 37 Fixed PC relative addressing bug | |
| 38 Added SET, SETDP, INCLUDE. IF/ELSE/ENDIF | |
| 39 No macros yet, and no separate linkable modules. | |
| 40 2012-06-04 j at klasek at | |
| 41 New: debugging parameter/option. | |
| 42 Fixed additional possible issue PC relative addressing. | |
| 43 Compatibility: Octal number prefix "&". | |
| 44 2014-07-15 j at klasek at | |
| 45 Fixed usage message. | |
|
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46 2018-07-11 |
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47 leax $ED00/256,x kernel offset in map |
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48 should be positive offset expr should be int(32bit) |
| 0 | 49 */ |
| 50 | |
| 51 #include <stdlib.h> | |
| 52 #include <stdio.h> | |
| 53 #include <string.h> | |
| 54 #include <ctype.h> | |
| 55 | |
| 56 #define NLABELS 2048 | |
| 57 #define MAXIDLEN 16 | |
| 58 #define MAXLISTBYTES 8 | |
| 59 #define FNLEN 30 | |
| 60 #define LINELEN 128 | |
| 61 | |
| 62 static int debug=0; | |
| 33 | 63 static struct incl { |
| 64 char *name; | |
| 65 struct incl *next; | |
| 66 } *incls = 0; | |
| 67 | |
| 68 static struct longer { | |
| 69 int gline; | |
| 70 int change; | |
| 71 struct longer *next; | |
| 72 } *lglist = 0; | |
| 73 | |
| 74 void makelonger(int gl) { | |
| 75 for(struct longer *p=lglist;p;p=p->next) { | |
| 76 if (p->gline==gl) { // already fixed | |
| 77 p->change = 1; | |
| 78 return; | |
| 79 } | |
| 80 } | |
| 81 struct longer *p = (struct longer *)calloc(sizeof(struct longer *),1); | |
| 82 p->gline=gl; | |
| 83 p->next = lglist; | |
| 84 lglist = p; | |
| 85 } | |
| 86 | |
| 87 int longer() { | |
| 88 for(struct longer *p=lglist;p;p=p->next) { | |
| 89 if (p->change == 0) return 1; | |
| 90 } | |
| 91 return 0; | |
| 92 } | |
| 0 | 93 |
| 94 struct oprecord{char * name; | |
| 95 unsigned char cat; | |
| 96 unsigned short code;}; | |
| 97 | |
| 98 /* Instruction categories: | |
| 99 0 one byte oprcodes NOP | |
| 100 1 two byte opcodes SWI2 | |
| 101 2 opcodes w. imm byte ANDCC | |
| 102 3 LEAX etc. | |
| 103 4 short branches. BGE | |
| 104 5 long branches 2byte opc LBGE | |
| 105 6 long branches 1byte opc LBRA | |
| 106 7 accumulator instr. ADDA | |
| 107 8 double reg instr 1byte opc LDX | |
| 108 9 double reg instr 2 byte opc LDY | |
| 109 10 single address instrs NEG | |
| 110 11 TFR, EXG | |
| 111 12 push,pull | |
| 112 13 pseudoops | |
| 113 */ | |
| 114 | |
| 115 struct oprecord optable[]={ | |
| 116 {"ABX",0,0x3a},{"ADCA",7,0x89},{"ADCB",7,0xc9}, | |
| 117 {"ADDA",7,0x8b},{"ADDB",7,0xcb},{"ADDD",8,0xc3}, | |
| 118 {"ANDA",7,0X84},{"ANDB",7,0xc4},{"ANDCC",2,0x1c}, | |
| 119 {"ASL",10,0x08},{"ASLA",0,0x48},{"ASLB",0,0x58}, | |
| 120 {"ASR",10,0x07},{"ASRA",0,0x47},{"ASRB",0,0x57}, | |
| 121 {"BCC",4,0x24},{"BCS",4,0x25},{"BEQ",4,0x27}, | |
| 122 {"BGE",4,0x2c},{"BGT",4,0x2e},{"BHI",4,0x22}, | |
| 123 {"BHS",4,0x24},{"BITA",7,0x85},{"BITB",7,0xc5}, | |
| 124 {"BLE",4,0x2f},{"BLO",4,0x25},{"BLS",4,0x23}, | |
| 125 {"BLT",4,0x2d},{"BMI",4,0x2b},{"BNE",4,0x26}, | |
| 126 {"BPL",4,0x2a},{"BRA",4,0x20},{"BRN",4,0x21}, | |
| 127 {"BSR",4,0x8d}, | |
| 128 {"BVC",4,0x28},{"BVS",4,0x29}, | |
| 129 {"CLC",1,0x1cfe},{"CLF",1,0x1cbf},{"CLI",1,0x1cef}, | |
| 130 {"CLIF",1,0x1caf}, | |
| 131 {"CLR",10,0x0f},{"CLRA",0,0x4f},{"CLRB",0,0x5f}, | |
| 132 {"CLV",1,0x1cfd}, | |
| 133 {"CMPA",7,0x81},{"CMPB",7,0xc1},{"CMPD",9,0x1083}, | |
| 134 {"CMPS",9,0x118c},{"CMPU",9,0x1183},{"CMPX",8,0x8c}, | |
| 135 {"CMPY",9,0x108c}, | |
| 136 {"COM",10,0x03},{"COMA",0,0x43},{"COMB",0,0x53}, | |
| 137 {"CWAI",2,0x3c},{"DAA",0,0x19}, | |
| 138 {"DEC",10,0x0a},{"DECA",0,0x4a},{"DECB",0,0x5a}, | |
| 139 {"DES",1,0x327f},{"DEU",1,0x335f},{"DEX",1,0x301f}, | |
| 140 {"DEY",1,0x313f}, | |
| 141 {"ELSE",13,1}, | |
| 142 {"EMOD",13,25}, | |
| 143 {"END",13,2}, | |
| 144 {"ENDC",13,3}, | |
| 145 {"ENDIF",13,3}, | |
| 146 {"ENDM",13,4}, | |
| 147 {"EORA",7,0x88},{"EORB",7,0xc8}, | |
| 148 {"EQU",13,5},{"EXG",11,0x1e},{"EXTERN",13,6}, | |
| 149 {"FCB",13,7},{"FCC",13,8}, | |
| 150 {"FCS",13,23}, | |
| 151 {"FCW",13,9}, | |
| 152 {"FDB",13,9}, | |
| 153 {"IF",13,10}, | |
| 33 | 154 {"IFEQ",13,30}, |
| 155 {"IFGT",13,29}, | |
| 156 {"IFNDEF",13,33}, | |
| 0 | 157 {"IFNE",13,28}, |
| 158 {"IFP1",13,21}, | |
| 159 {"INC",10,0x0c},{"INCA",0,0x4c},{"INCB",0,0x5c}, | |
| 160 {"INCLUDE",13,16}, | |
| 161 {"INS",1,0x3261},{"INU",1,0x3341},{"INX",1,0x3001}, | |
| 162 {"INY",1,0x3121},{"JMP",10,0x0e},{"JSR",8,0x8d}, | |
| 163 {"LBCC",5,0x1024},{"LBCS",5,0x1025},{"LBEQ",5,0x1027}, | |
| 164 {"LBGE",5,0x102c},{"LBGT",5,0x102e},{"LBHI",5,0x1022}, | |
| 165 {"LBHS",5,0x1024}, | |
| 166 {"LBLE",5,0x102f},{"LBLO",5,0x1025},{"LBLS",5,0x1023}, | |
| 167 {"LBLT",5,0x102d},{"LBMI",5,0x102b},{"LBNE",5,0x1026}, | |
| 168 {"LBPL",5,0x102a},{"LBRA",6,0x16},{"LBRN",5,0x1021}, | |
| 169 {"LBSR",6,0x17}, | |
| 170 {"LBVC",5,0x1028},{"LBVS",5,0x1029}, | |
| 171 {"LDA",7,0x86},{"LDB",7,0xc6},{"LDD",8,0xcc}, | |
| 172 {"LDS",9,0x10ce},{"LDU",8,0xce},{"LDX",8,0x8e}, | |
| 173 {"LDY",9,0x108e},{"LEAS",3,0x32}, | |
| 174 {"LEAU",3,0x33},{"LEAX",3,0x30},{"LEAY",3,0x31}, | |
| 175 {"LSL",10,0x08},{"LSLA",0,0x48},{"LSLB",0,0x58}, | |
| 176 {"LSR",10,0x04},{"LSRA",0,0x44},{"LSRB",0,0x54}, | |
| 177 {"MACRO",13,11}, | |
| 178 {"MOD",13,24}, | |
| 179 {"MUL",0,0x3d}, | |
| 180 {"NAM",13,26}, | |
| 181 {"NEG",10,0x00},{"NEGA",0,0x40},{"NEGB",0,0x50}, | |
| 182 {"NOP",0,0x12}, | |
| 183 {"OPT",13,19}, | |
| 184 {"ORA",7,0x8a},{"ORB",7,0xca},{"ORCC",2,0x1a}, | |
| 185 {"ORG",13,12}, | |
| 186 {"OS9",13,32}, | |
| 187 {"PAG",13,20}, {"PAGE",13,20}, | |
| 188 {"PSHS",12,0x34},{"PSHU",12,0x36},{"PUBLIC",13,13}, | |
| 189 {"PULS",12,0x35},{"PULU",12,0x37},{"RMB",13,0}, | |
| 190 {"ROL",10,0x09},{"ROLA",0,0x49},{"ROLB",0,0x59}, | |
| 191 {"ROR",10,0x06},{"RORA",0,0x46},{"RORB",0,0x56}, | |
| 192 {"RTI",0,0x3b},{"RTS",0,0x39}, | |
| 193 {"SBCA",7,0x82},{"SBCB",7,0xc2}, | |
| 194 {"SEC",1,0x1a01},{"SEF",1,0x1a40},{"SEI",1,0x1a10}, | |
| 195 {"SEIF",1,0x1a50},{"SET",13,15}, | |
| 196 {"SETDP",13,14},{"SEV",1,0x1a02},{"SEX",0,0x1d}, | |
| 197 {"STA",7,0x87},{"STB",7,0xc7},{"STD",8,0xcd}, | |
| 198 {"STS",9,0x10cf},{"STU",8,0xcf},{"STX",8,0x8f}, | |
| 199 {"STY",9,0x108f}, | |
| 200 {"SUBA",7,0x80},{"SUBB",7,0xc0},{"SUBD",8,0x83}, | |
| 201 {"SWI",0,0x3f},{"SWI2",1,0x103f},{"SWI3",1,0x113f}, | |
| 202 {"SYNC",0,0x13},{"TFR",11,0x1f}, | |
| 203 {"TITLE",13,18}, | |
| 204 {"TST",10,0x0d},{"TSTA",0,0x4d},{"TSTB",0,0x5d}, | |
| 205 {"TTL",13,18}, | |
| 206 {"USE",13,27}, | |
| 207 }; | |
| 208 | |
| 209 struct symrecord{char name[MAXIDLEN+1]; | |
| 210 char cat; | |
| 211 unsigned short value; | |
| 33 | 212 struct symrecord *next; |
| 0 | 213 }; |
| 214 | |
| 215 int symcounter=0; | |
| 3 | 216 int os9 = 0; // os9 flag |
| 6 | 217 int prevloc = 0; |
| 33 | 218 int prevrmb = 0; |
| 26 | 219 struct symrecord * prevlp = 0; |
| 0 | 220 |
| 8 | 221 /* expression categories... |
| 222 ECORD all zeros is ordinary constant. | |
| 223 ECADR bit 1 indicates address within module. | |
| 224 ECEXT bit 2 indicates external address. | |
| 225 ECLBL bit 3 public label | |
| 226 ECABS bit 4 indicates this can't be relocated if it's an address. | |
| 227 ECNEG bit 5 indicates address (if any) is negative. | |
| 228 */ | |
| 229 | |
| 230 | |
| 231 /* Symbol categories. exprcat ( symcat & 0xe ) | |
| 232 0 SCC Constant value (from equ). ECORD | |
| 233 1 SCV Variable value (from set) ECORD | |
| 234 2 SCC__ADR Address within program module (label). ECADR | |
| 235 3 SCV__ADR Variable containing address. ECADR | |
| 236 4 SC_E_ADR Adress in other program module (extern) ECEXT | |
| 237 5 SCVE_ADR Variable containing external address. ECEXT | |
| 238 6 SCU _ADR Unresolved address. ECEXT+ECADR | |
| 239 7 SCV_UADR Variable containing unresolved address. ECEXT+ECADR | |
| 240 8 SC___LBL Public label. ECLBL | |
| 241 9 SCMACRO Macro definition. xxx | |
| 242 10 SCU__LBL Public label (yet undefined). ECADR+ECLBL | |
| 243 11 SCPARAM parameter name. ECADR+ECLBL | |
| 244 12 SCLOCAL local label. ECEXT+ECLBL | |
| 245 13 SCEMPTY empty. xxx | |
| 0 | 246 */ |
| 247 | |
| 248 struct symrecord symtable[NLABELS]; | |
| 249 | |
| 250 void processfile(char *name); | |
| 251 | |
| 252 struct oprecord * findop(char * nm) | |
| 253 /* Find operation (mnemonic) in table using binary search */ | |
| 254 { | |
| 255 int lo,hi,i,s; | |
| 256 lo=0;hi=sizeof(optable)/sizeof(optable[0])-1; | |
| 257 do { | |
| 258 i=(lo+hi)/2; | |
| 259 s=strcmp(optable[i].name,nm); | |
| 260 if(s<0) lo=i+1; | |
| 261 else if(s>0) hi=i-1; | |
| 262 else break; | |
| 263 } while(hi>=lo); | |
| 264 if (s) return NULL; | |
| 265 return optable+i; | |
| 266 } | |
| 267 | |
| 268 struct symrecord * findsym(char * nm) | |
| 269 /* finds symbol table record; inserts if not found | |
| 270 uses binary search, maintains sorted table */ | |
| 271 { | |
| 272 int lo,hi,i,j,s; | |
| 273 lo=0;hi=symcounter-1; | |
| 274 s=1;i=0; | |
| 275 while (hi>=lo) { | |
| 276 i=(lo+hi)/2; | |
| 277 s=strcmp(symtable[i].name,nm); | |
| 278 if(s<0) lo=i+1; | |
| 279 else if(s>0) hi=i-1; | |
| 280 else break; | |
| 281 } | |
| 282 if(s) { | |
| 283 i=(s<0?i+1:i); | |
| 284 if(symcounter==NLABELS) { | |
| 285 fprintf(stderr,"Sorry, no storage for symbols!!!"); | |
| 286 exit(4); | |
| 287 } | |
| 288 for(j=symcounter;j>i;j--) symtable[j]=symtable[j-1]; | |
| 289 symcounter++; | |
| 290 strcpy(symtable[i].name,nm); | |
| 291 symtable[i].cat=13; | |
| 292 } | |
| 293 return symtable+i; | |
| 294 } | |
| 295 | |
| 296 FILE *listfile,*objfile; | |
| 297 char *listname,*objname,*srcname,*curname; | |
| 33 | 298 int lineno,glineno; |
| 0 | 299 |
| 300 void | |
| 301 outsymtable() | |
| 302 { | |
| 303 int i,j=0; | |
| 304 fprintf(listfile,"\nSYMBOL TABLE"); | |
| 305 for(i=0;i<symcounter;i++) | |
| 306 if(symtable[i].cat!=13) { | |
| 307 if(j%4==0)fprintf(listfile,"\n"); | |
| 308 fprintf(listfile,"%10s %02d %04x",symtable[i].name,symtable[i].cat, | |
| 309 symtable[i].value); | |
| 310 j++; | |
| 311 } | |
| 312 fprintf(listfile,"\n"); | |
| 313 } | |
| 314 | |
| 315 struct regrecord{char *name;unsigned char tfr,psh;}; | |
| 316 struct regrecord regtable[]= | |
| 317 {{"D",0x00,0x06},{"X",0x01,0x10},{"Y",0x02,0x20}, | |
| 318 {"U",0x03,0x40},{"S",0x04,0x40},{"PC",0x05,0x80}, | |
| 319 {"A",0x08,0x02},{"B",0x09,0x04},{"CC",0x0a,0x01}, | |
| 320 {"CCR",0x0a,0x01},{"DP",0x0b,0x08},{"DPR",0x0b,0x08}}; | |
| 321 | |
| 322 struct regrecord * findreg(char *nm) | |
| 323 { | |
| 324 int i; | |
| 325 for(i=0;i<12;i++) { | |
| 326 if(strcmp(regtable[i].name,nm)==0) return regtable+i; | |
| 327 } | |
| 328 return 0; | |
| 329 } | |
| 330 | |
| 331 | |
| 332 char pass; /* Assembler pass=1 or 2 */ | |
| 333 char listing; /* flag to indicate listing */ | |
| 334 char relocatable; /* flag to indicate relocatable object. */ | |
| 335 char terminate; /* flag to indicate termination. */ | |
| 336 char generating; /* flag to indicate that we generate code */ | |
| 337 unsigned short loccounter,oldlc; /* Location counter */ | |
| 338 | |
| 339 char inpline[128]; /* Current input line (not expanded)*/ | |
| 340 char srcline[128]; /* Current source line */ | |
| 341 char * srcptr; /* Pointer to line being parsed */ | |
| 342 | |
| 343 char unknown; /* flag to indicate value unknown */ | |
| 344 char certain; /* flag to indicate value is certain at pass 1*/ | |
| 345 int error; /* flags indicating errors in current line. */ | |
| 346 int errors; /* number of errors */ | |
| 347 char exprcat; /* category of expression being parsed, eg. | |
| 348 label or constant, this is important when | |
| 349 generating relocatable object code. */ | |
| 350 | |
| 6 | 351 void generate() |
| 352 { | |
| 353 generating = 1; | |
| 354 if (prevloc) { | |
| 33 | 355 prevrmb = loccounter+1; // we were in rmb mode |
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356 oldlc = loccounter = prevloc-1 ; |
| 33 | 357 prevloc = 0; |
| 6 | 358 } |
| 359 } | |
| 360 | |
| 0 | 361 |
| 362 char namebuf[MAXIDLEN+1]; | |
| 363 | |
| 364 void | |
| 365 err(int er) { | |
| 366 error |= er ; | |
| 367 } | |
| 368 | |
| 369 void | |
| 370 scanname() | |
| 371 { | |
| 372 int i=0; | |
| 373 char c; | |
| 374 while(1) { | |
| 375 c=*srcptr++; | |
| 376 if(c>='a'&&c<='z')c-=32; | |
| 33 | 377 if(c!='_'&&c!='@'&&c!='.'&&c!='$'&&(c<'0'||c>'9')&&(c<'A'||c>'Z'))break; |
| 0 | 378 if(i<MAXIDLEN)namebuf[i++]=c; |
| 379 } | |
| 380 namebuf[i]=0; | |
| 381 srcptr--; | |
| 382 } | |
| 383 | |
| 384 void | |
| 385 skipspace() | |
| 386 { | |
| 387 char c; | |
| 388 do { | |
| 389 c=*srcptr++; | |
| 390 } while(c==' '||c=='\t'); | |
| 391 srcptr--; | |
| 392 } | |
| 393 | |
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394 int scanexpr(int); |
| 0 | 395 |
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396 int scandecimal() |
| 0 | 397 { |
| 398 char c; | |
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399 int t=0; |
| 0 | 400 c=*srcptr++; |
| 401 while(isdigit(c)) { | |
| 402 t=t*10+c-'0'; | |
| 403 c=*srcptr++; | |
| 404 } | |
| 405 srcptr--; | |
| 406 return t; | |
| 407 } | |
| 408 | |
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409 int scanhex() |
| 0 | 410 { |
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411 int t=0,i=0; |
| 0 | 412 srcptr++; |
| 413 scanname(); | |
| 414 while(namebuf[i]>='0'&&namebuf[i]<='F') { | |
| 415 t=t*16+namebuf[i]-'0'; | |
| 416 if(namebuf[i]>'9')t-=7; | |
| 417 i++; | |
| 418 } | |
| 419 if(i==0)error|=1; | |
| 420 return t; | |
| 421 } | |
| 422 | |
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423 int scanchar() |
| 0 | 424 { |
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425 int t; |
| 0 | 426 srcptr++; |
| 427 t=*srcptr; | |
| 428 if(t)srcptr++; | |
| 429 if (*srcptr=='\'')srcptr++; | |
| 430 return t; | |
| 431 } | |
| 432 | |
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433 int scanbin() |
| 0 | 434 { |
| 435 char c; | |
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436 int t=0; |
| 0 | 437 srcptr++; |
| 438 c=*srcptr++; | |
| 439 while(c=='0'||c=='1') { | |
| 440 t=t*2+c-'0'; | |
| 441 c=*srcptr++; | |
| 442 } | |
| 443 srcptr--; | |
| 444 return t; | |
| 445 } | |
| 446 | |
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447 int scanoct() |
| 0 | 448 { |
| 449 char c; | |
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Shinji KONO <kono@ie.u-ryukyu.ac.jp>
parents:
26
diff
changeset
|
450 int t=0; |
| 0 | 451 srcptr++; |
| 452 c=*srcptr++; | |
| 453 while(c>='0'&&c<='7') { | |
| 454 t=t*8+c-'0'; | |
| 455 c=*srcptr++; | |
| 456 } | |
| 457 srcptr--; | |
| 458 return t; | |
| 459 } | |
| 460 | |
| 461 | |
|
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3c14d647bb51
assembler and emulator fix
Shinji KONO <kono@ie.u-ryukyu.ac.jp>
parents:
26
diff
changeset
|
462 int scanlabel() |
| 0 | 463 { |
| 464 struct symrecord * p; | |
| 465 scanname(); | |
| 466 p=findsym(namebuf); | |
| 467 if(p->cat==13) { | |
| 468 p->cat=6; | |
| 469 p->value=0; | |
| 470 } | |
| 471 if(p->cat==9||p->cat==11)error|=1; | |
| 472 exprcat=p->cat&14; | |
| 473 if(exprcat==6||exprcat==10)unknown=1; | |
| 474 if(((exprcat==2||exprcat==8) | |
| 475 && (unsigned short)(p->value)>(unsigned short)loccounter)|| | |
| 476 exprcat==4) | |
| 477 certain=0; | |
| 478 if(exprcat==8||exprcat==6||exprcat==10)exprcat=2; | |
| 479 return p->value; | |
| 480 } | |
| 481 | |
| 482 | |
|
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3c14d647bb51
assembler and emulator fix
Shinji KONO <kono@ie.u-ryukyu.ac.jp>
parents:
26
diff
changeset
|
483 int scanfactor() |
| 0 | 484 { |
| 485 char c; | |
|
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3c14d647bb51
assembler and emulator fix
Shinji KONO <kono@ie.u-ryukyu.ac.jp>
parents:
26
diff
changeset
|
486 int t; |
| 0 | 487 skipspace(); |
| 488 c=*srcptr; | |
| 489 if(isalpha(c))return scanlabel(); | |
| 490 else if(isdigit(c))return scandecimal(); | |
| 491 else switch(c) { | |
| 33 | 492 case '*' : srcptr++;exprcat|=2; if(prevloc) return prevloc-1; else return loccounter; |
| 493 case '.' : srcptr++;exprcat|=2; if(prevrmb) return prevrmb-1; else return loccounter; | |
| 0 | 494 case '$' : return scanhex(); |
| 495 case '%' : return scanbin(); | |
| 496 case '&' : /* compatibility */ | |
| 497 case '@' : return scanoct(); | |
| 498 case '\'' : return scanchar(); | |
| 499 case '(' : srcptr++;t=scanexpr(0);skipspace(); | |
| 500 if(*srcptr==')')srcptr++;else error|=1; | |
| 501 return t; | |
| 502 case '-' : srcptr++;exprcat^=32;return -scanfactor(); | |
| 503 case '+' : srcptr++;return scanfactor(); | |
| 504 case '!' : srcptr++;exprcat|=16;return !scanfactor(); | |
| 505 case '^' : | |
| 506 case '~' : srcptr++;exprcat|=16;return ~scanfactor(); | |
| 507 } | |
| 508 error|=1; | |
| 509 return 0; | |
| 510 } | |
| 511 | |
| 512 #define EXITEVAL {srcptr--;return t;} | |
| 513 | |
| 514 #define RESOLVECAT if((oldcat&15)==0)oldcat=0;\ | |
| 515 if((exprcat&15)==0)exprcat=0;\ | |
| 516 if((exprcat==2&&oldcat==34)||(exprcat==34&&oldcat==2)) {\ | |
| 517 exprcat=0;\ | |
| 518 oldcat=0;}\ | |
| 519 exprcat|=oldcat;\ | |
| 520 /* resolve such cases as constant added to address or difference between | |
| 521 two addresses in same module */ | |
| 522 | |
| 523 | |
|
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3c14d647bb51
assembler and emulator fix
Shinji KONO <kono@ie.u-ryukyu.ac.jp>
parents:
26
diff
changeset
|
524 int scanexpr(int level) /* This is what you call _recursive_ descent!!!*/ |
| 0 | 525 { |
|
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3c14d647bb51
assembler and emulator fix
Shinji KONO <kono@ie.u-ryukyu.ac.jp>
parents:
26
diff
changeset
|
526 int t,u; |
| 0 | 527 char oldcat,c; |
| 528 exprcat=0; | |
| 529 if(level==10)return scanfactor(); | |
| 530 t=scanexpr(level+1); | |
| 531 while(1) { | |
| 5 | 532 // skipspace(); |
| 0 | 533 c=*srcptr++; |
| 534 switch(c) { | |
| 535 case '*':oldcat=exprcat; | |
| 536 t*=scanexpr(10); | |
| 537 exprcat|=oldcat|16; | |
| 538 break; | |
| 539 case '/':oldcat=exprcat; | |
| 540 u=scanexpr(10); | |
| 541 if(u)t/=u;else error|=1; | |
| 542 exprcat|=oldcat|16; | |
| 543 break; | |
| 544 case '%':oldcat=exprcat; | |
| 545 u=scanexpr(10); | |
| 546 if(u)t%=u;else error|=1; | |
| 547 exprcat|=oldcat|16; | |
| 548 break; | |
| 549 case '+':if(level==9)EXITEVAL | |
| 550 oldcat=exprcat; | |
| 551 t+=scanexpr(9); | |
| 552 RESOLVECAT | |
| 553 break; | |
| 554 case '-':if(level==9)EXITEVAL | |
| 555 oldcat=exprcat; | |
| 556 t-=scanexpr(9); | |
| 557 exprcat^=32; | |
| 558 RESOLVECAT | |
| 559 break; | |
| 560 case '<':if(*(srcptr)=='<') { | |
| 561 if(level>=8)EXITEVAL | |
| 562 srcptr++; | |
| 563 oldcat=exprcat; | |
| 564 t<<=scanexpr(8); | |
| 565 exprcat|=oldcat|16; | |
| 566 break; | |
| 567 } else if(*(srcptr)=='=') { | |
| 568 if(level>=7)EXITEVAL | |
| 569 srcptr++; | |
| 570 oldcat=exprcat; | |
| 571 t=t<=scanexpr(7); | |
| 572 exprcat|=oldcat|16; | |
| 573 break; | |
| 574 } else { | |
| 575 if(level>=7)EXITEVAL | |
| 576 oldcat=exprcat; | |
| 577 t=t<scanexpr(7); | |
| 578 exprcat|=oldcat|16; | |
| 579 break; | |
| 580 } | |
| 581 case '>':if(*(srcptr)=='>') { | |
| 582 if(level>=8)EXITEVAL | |
| 583 srcptr++; | |
| 584 oldcat=exprcat; | |
| 585 t>>=scanexpr(8); | |
| 586 exprcat|=oldcat|16; | |
| 587 break; | |
| 588 } else if(*(srcptr)=='=') { | |
| 589 if(level>=7)EXITEVAL | |
| 590 srcptr++; | |
| 591 oldcat=exprcat; | |
| 592 t=t>=scanexpr(7); | |
| 593 exprcat|=oldcat|16; | |
| 594 break; | |
| 595 } else { | |
| 596 if(level>=7)EXITEVAL | |
| 597 oldcat=exprcat; | |
| 598 t=t>scanexpr(7); | |
| 599 exprcat|=oldcat|16; | |
| 600 break; | |
| 601 } | |
| 5 | 602 case '!':if(level>=6) { |
| 603 if (*srcptr=='=') { | |
| 604 srcptr++; | |
| 605 oldcat=exprcat; | |
| 606 t=t!=scanexpr(6); | |
| 607 exprcat|=oldcat|16; | |
| 608 } else { | |
| 609 oldcat=exprcat; | |
| 610 t|=scanexpr(6); | |
| 611 exprcat|=oldcat|16; | |
| 612 } | |
| 613 } | |
| 0 | 614 break; |
| 615 case '=':if(level>=6)EXITEVAL | |
| 616 if(*srcptr=='=')srcptr++; | |
| 617 oldcat=exprcat; | |
| 618 t=t==scanexpr(6); | |
| 619 exprcat|=oldcat|16; | |
| 620 break; | |
| 621 case '&':if(level>=5)EXITEVAL | |
| 622 oldcat=exprcat; | |
| 623 t&=scanexpr(5); | |
| 624 exprcat|=oldcat|16; | |
| 625 break; | |
| 626 case '^':if(level>=4)EXITEVAL | |
| 627 oldcat=exprcat; | |
| 628 t^=scanexpr(4); | |
| 629 exprcat|=oldcat|16; | |
| 630 break; | |
| 631 case '|':if(level>=3)EXITEVAL | |
| 632 oldcat=exprcat; | |
| 633 t|=scanexpr(3); | |
| 634 exprcat|=oldcat|16; | |
| 635 default: EXITEVAL | |
| 636 } | |
| 637 } | |
| 638 } | |
| 639 | |
| 640 char mode; /* addressing mode 0=immediate,1=direct,2=extended,3=postbyte | |
| 641 4=pcrelative(with postbyte) 5=indirect 6=pcrel&indirect*/ | |
| 642 char opsize; /*desired operand size 0=dunno,1=5,2=8,3=16*/ | |
| 643 short operand; | |
| 644 unsigned char postbyte; | |
| 645 | |
| 646 int dpsetting; | |
| 647 | |
| 648 | |
| 649 int scanindexreg() | |
| 650 { | |
| 651 char c; | |
| 652 c=*srcptr; | |
| 653 if(islower(c))c-=32; | |
| 654 if (debug) fprintf(stderr,"DEBUG: scanindexreg: indexreg=%d, mode=%d, opsize=%d, error=%d, postbyte=%02X\n",c,mode,opsize,error,postbyte); | |
| 655 switch(c) { | |
| 656 case 'X':return 1; | |
| 657 case 'Y':postbyte|=0x20;return 1; | |
| 658 case 'U':postbyte|=0x40;return 1; | |
| 659 case 'S':postbyte|=0x60;return 1; | |
| 660 default: return 0; | |
| 661 } | |
| 662 } | |
| 663 | |
| 664 void | |
| 665 set3() | |
| 666 { | |
| 667 if(mode<3)mode=3; | |
| 668 } | |
| 669 | |
| 670 void | |
| 671 scanspecial() | |
| 672 { | |
| 673 set3(); | |
| 674 skipspace(); | |
| 675 if(*srcptr=='-') { | |
| 676 srcptr++; | |
| 677 if(*srcptr=='-') { | |
| 678 srcptr++; | |
| 679 postbyte=0x83; | |
| 680 } else postbyte=0x82; | |
| 681 if(!scanindexreg())error|=2;else srcptr++; | |
| 682 } else { | |
| 683 postbyte=0x80; | |
| 684 if(!scanindexreg())error|=2;else srcptr++; | |
| 685 if(*srcptr=='+') { | |
| 686 srcptr++; | |
| 687 if(*srcptr=='+') { | |
| 688 srcptr++; | |
| 689 postbyte+=1; | |
| 690 } | |
| 691 } else postbyte+=4; | |
| 692 } | |
| 693 } | |
| 694 | |
| 695 void | |
| 696 scanindexed() | |
| 697 { | |
| 698 set3(); | |
| 699 postbyte=0; | |
| 700 if(scanindexreg()) { | |
| 701 srcptr++; | |
| 702 if(opsize==0) { | |
| 703 if(unknown||!certain)opsize=3; | |
| 704 else if(operand>=-16&&operand<16&&mode==3)opsize=1; | |
| 705 else if(operand>=-128&&operand<128)opsize=2; | |
| 706 else opsize=3; | |
| 707 } | |
| 708 switch(opsize) { | |
| 709 case 1:postbyte+=(operand&31);opsize=0;break; | |
| 710 case 2:postbyte+=0x88;break; | |
| 711 case 3:postbyte+=0x89;break; | |
| 712 } | |
| 713 } else { /*pc relative*/ | |
| 714 if(toupper(*srcptr)!='P')error|=2; | |
| 715 else { | |
| 716 srcptr++; | |
| 717 if(toupper(*srcptr)!='C')error|=2; | |
| 718 else { | |
| 719 srcptr++; | |
| 720 if(toupper(*srcptr)=='R')srcptr++; | |
| 721 } | |
| 722 } | |
| 723 mode++;postbyte+=0x8c; | |
| 724 if(opsize==1)opsize=2; | |
| 725 } | |
| 726 } | |
| 727 | |
| 728 #define RESTORE {srcptr=oldsrcptr;c=*srcptr;goto dodefault;} | |
| 729 | |
| 730 void | |
| 731 scanoperands() | |
| 732 { | |
| 733 char c,d,*oldsrcptr; | |
| 734 unknown=0; | |
| 735 opsize=0; | |
| 736 certain=1; | |
| 737 skipspace(); | |
| 738 c=*srcptr; | |
| 739 mode=0; | |
| 740 if(c=='[') { | |
| 741 srcptr++; | |
| 742 c=*srcptr; | |
| 743 mode=5; | |
| 744 } | |
| 745 if (debug) fprintf(stderr,"DEBUG: scanoperands: c=%c (%02X)\n",c,c); | |
| 746 switch(c) { | |
| 747 case 'D': case 'd': | |
| 748 oldsrcptr=srcptr; | |
| 749 srcptr++; | |
| 750 skipspace(); | |
| 751 if(*srcptr!=',')RESTORE else { | |
| 752 postbyte=0x8b; | |
| 753 srcptr++; | |
| 754 if(!scanindexreg())RESTORE else {srcptr++;set3();} | |
| 755 } | |
| 756 break; | |
| 757 case 'A': case 'a': | |
| 758 oldsrcptr=srcptr; | |
| 759 srcptr++; | |
| 760 skipspace(); | |
| 761 if(*srcptr!=',')RESTORE else { | |
| 762 postbyte=0x86; | |
| 763 srcptr++; | |
| 764 if(!scanindexreg())RESTORE else {srcptr++;set3();} | |
| 765 } | |
| 766 break; | |
| 767 case 'B': case 'b': | |
| 768 oldsrcptr=srcptr; | |
| 769 srcptr++; | |
| 770 skipspace(); | |
| 771 if(*srcptr!=',')RESTORE else { | |
| 772 postbyte=0x85; | |
| 773 srcptr++; | |
| 774 if (debug) fprintf(stderr,"DEBUG: scanoperands: breg preindex: c=%c (%02X)\n",*srcptr,*srcptr); | |
| 775 if(!scanindexreg())RESTORE else {srcptr++;set3();} | |
| 776 if (debug) fprintf(stderr,"DEBUG: scanoperands: breg: postindex c=%c (%02X)\n",*srcptr,*srcptr); | |
| 777 } | |
| 778 break; | |
| 779 case ',': | |
| 780 srcptr++; | |
| 781 scanspecial(); | |
| 782 break; | |
| 783 case '#': | |
| 784 if(mode==5)error|=2;else mode=0; | |
| 785 srcptr++; | |
| 5 | 786 if (*srcptr=='"') { |
| 787 operand = (srcptr[1]<<8) + srcptr[2] ; | |
| 788 srcptr += 3; | |
| 789 break; | |
| 790 } | |
| 0 | 791 operand=scanexpr(0); |
| 792 break; | |
| 793 case '<': | |
| 794 srcptr++; | |
| 795 if(*srcptr=='<') { | |
| 796 srcptr++; | |
| 797 opsize=1; | |
| 798 } else opsize=2; | |
| 799 goto dodefault; | |
| 800 case '>': | |
| 801 srcptr++; | |
| 802 opsize=3; | |
| 803 default: dodefault: | |
| 804 operand=scanexpr(0); | |
| 805 skipspace(); | |
| 806 if(*srcptr==',') { | |
| 807 srcptr++; | |
| 808 scanindexed(); | |
| 809 } else { | |
| 810 if(opsize==0) { | |
| 811 if(unknown||!certain||dpsetting==-1|| | |
| 812 (unsigned short)(operand-dpsetting*256)>=256) | |
| 813 opsize=3; else opsize=2; | |
| 814 } | |
| 815 if(opsize==1)opsize=2; | |
| 816 if(mode==5){ | |
| 817 postbyte=0x8f; | |
| 818 opsize=3; | |
| 819 } else mode=opsize-1; | |
| 820 } | |
| 821 } | |
| 822 if (debug) fprintf(stderr,"DEBUG: scanoperands: mode=%d, error=%d, postbyte=%02X\n",mode,error,postbyte); | |
| 823 if(mode>=5) { | |
| 824 skipspace(); | |
| 825 postbyte|=0x10; | |
| 826 if(*srcptr!=']')error|=2;else srcptr++; | |
| 827 } | |
| 828 if(pass==2&&unknown)error|=4; | |
| 829 } | |
| 830 | |
| 831 unsigned char codebuf[128]; | |
| 832 int codeptr; /* byte offset within instruction */ | |
| 833 int suppress; /* 0=no suppress 1=until ENDIF 2=until ELSE 3=until ENDM */ | |
| 834 int ifcount; /* count of nested IFs within suppressed text */ | |
| 835 | |
| 836 unsigned char outmode; /* 0 is binary, 1 is s-records */ | |
| 837 | |
| 838 unsigned short hexaddr; | |
| 839 int hexcount; | |
| 840 unsigned char hexbuffer[16]; | |
| 841 unsigned int chksum; | |
| 842 | |
| 843 extern int os9crc(unsigned char c, int crcp); | |
| 844 int crc; | |
| 845 | |
| 846 void | |
| 847 reset_crc() | |
| 848 { | |
| 849 crc = -1; | |
| 850 } | |
| 851 | |
| 852 | |
| 853 void | |
| 854 flushhex() | |
| 855 { | |
| 856 int i; | |
| 857 if(hexcount){ | |
| 858 fprintf(objfile,"S1%02X%04X",(hexcount+3)&0xff,hexaddr&0xffff); | |
| 859 for(i=0;i<hexcount;i++)fprintf(objfile,"%02X",hexbuffer[i]); | |
| 860 chksum+=(hexaddr&0xff)+((hexaddr>>8)&0xff)+hexcount+3; | |
| 861 fprintf(objfile,"%02X\n",0xff-(chksum&0xff)); | |
| 862 hexaddr+=hexcount; | |
| 863 hexcount=0; | |
| 864 chksum=0; | |
| 865 } | |
| 866 } | |
| 867 | |
| 868 void | |
| 869 outhex(unsigned char x) | |
| 870 { | |
| 871 if(hexcount==16)flushhex(); | |
| 872 hexbuffer[hexcount++]=x; | |
| 873 chksum+=x; | |
| 874 } | |
| 875 | |
| 876 void | |
| 877 outbuffer() | |
| 878 { | |
| 879 int i; | |
| 880 for(i=0;i<codeptr;i++) { | |
| 881 crc = os9crc(codebuf[i],crc); | |
| 882 if(!outmode)fputc(codebuf[i],objfile);else outhex(codebuf[i]); | |
| 883 } | |
| 884 } | |
| 885 | |
| 886 char *errormsg[]={"Error in expression", | |
| 887 "Illegal addressing mode", | |
| 888 "Undefined label", | |
| 889 "Multiple definitions of label", | |
| 890 "Relative branch out of range", | |
| 891 "Missing label", | |
| 892 "","","","","","","","","", | |
| 893 "Illegal mnemonic" | |
| 894 }; | |
| 895 | |
| 896 void | |
| 897 report() | |
| 898 { | |
| 899 int i; | |
| 900 fprintf(stderr,"File %s, line %d:%s\n",curname,lineno,srcline); | |
| 901 for(i=0;i<16;i++) { | |
| 902 if(error&1) { | |
| 903 fprintf(stderr,"%s\n",errormsg[i]); | |
| 904 if(pass==2&&listing)fprintf(listfile,"**** %s\n",errormsg[i]); | |
| 905 } | |
| 906 error>>=1; | |
| 907 } | |
| 5 | 908 error = 0; |
| 0 | 909 errors++; |
| 910 } | |
| 911 | |
| 912 void | |
| 913 outlist() | |
| 914 { | |
| 915 int i; | |
| 916 fprintf(listfile,"%04X: ",oldlc); | |
| 917 for(i=0;i<codeptr&&i<MAXLISTBYTES;i++) | |
| 918 fprintf(listfile,"%02X",codebuf[i]); | |
| 919 for(;i<=MAXLISTBYTES;i++) | |
| 920 fprintf(listfile," "); | |
| 921 fprintf(listfile,"%s\n",srcline); | |
| 922 while(i<codeptr) { | |
| 923 fprintf(listfile,"%04X: ",oldlc + i); | |
| 924 for(int j=0;i<codeptr&&j<MAXLISTBYTES;j++) { | |
| 925 fprintf(listfile,"%02X",codebuf[i]); i++; | |
| 926 } | |
| 927 fprintf(listfile,"\n"); | |
| 928 } | |
| 929 } | |
| 930 | |
| 931 void | |
| 932 setlabel(struct symrecord * lp) | |
| 933 { | |
| 33 | 934 while (prevlp) { |
| 26 | 935 struct symrecord *l = prevlp; |
| 33 | 936 prevlp = prevlp->next; |
| 26 | 937 setlabel(l); |
| 938 } | |
| 0 | 939 if(lp) { |
| 940 if(lp->cat!=13&&lp->cat!=6) { | |
| 941 if(lp->cat!=2||lp->value!=loccounter) | |
| 33 | 942 ; // error|=8; |
| 0 | 943 } else { |
| 944 lp->cat=2; | |
| 945 lp->value=loccounter; | |
| 946 } | |
| 947 } | |
| 948 } | |
| 949 | |
| 950 void | |
| 951 putbyte(unsigned char b) | |
| 952 { | |
| 953 codebuf[codeptr++]=b; | |
| 954 } | |
| 955 | |
| 956 void | |
| 957 putword(unsigned short w) | |
| 958 { | |
| 959 codebuf[codeptr++]=w>>8; | |
| 960 codebuf[codeptr++]=w&0x0ff; | |
| 961 } | |
| 962 | |
| 963 void | |
| 964 doaddress() /* assemble the right addressing bytes for an instruction */ | |
| 965 { | |
| 966 int offs; | |
| 967 switch(mode) { | |
| 968 case 0: if(opsize==2)putbyte(operand);else putword(operand);break; | |
| 969 case 1: putbyte(operand);break; | |
| 970 case 2: putword(operand);break; | |
| 971 case 3: case 5: putbyte(postbyte); | |
| 972 switch(opsize) { | |
| 973 case 2: putbyte(operand);break; | |
| 974 case 3: putword(operand); | |
| 975 } | |
| 976 break; | |
| 977 case 4: case 6: offs=(unsigned short)operand-loccounter-codeptr-2; | |
| 978 if(offs<-128||offs>=128||opsize==3||unknown||!certain) { | |
| 33 | 979 if((!unknown)&&opsize==2&&(offs<-128||offs>=128) ) { |
| 980 error|=16; makelonger(glineno); | |
| 981 } | |
|
12
111e5defb8ab
boot is called, rti failed
Shinji KONO <kono@ie.u-ryukyu.ac.jp>
parents:
11
diff
changeset
|
982 offs--; |
|
111e5defb8ab
boot is called, rti failed
Shinji KONO <kono@ie.u-ryukyu.ac.jp>
parents:
11
diff
changeset
|
983 opsize=3; |
|
111e5defb8ab
boot is called, rti failed
Shinji KONO <kono@ie.u-ryukyu.ac.jp>
parents:
11
diff
changeset
|
984 postbyte++; |
| 0 | 985 } |
| 986 putbyte(postbyte); | |
| 987 if (debug) fprintf(stderr,"DEBUG: doaddress: mode=%d, opsize=%d, error=%d, postbyte=%02X, operand=%04X offs=%d\n",mode,opsize,error,postbyte,operand,offs); | |
| 988 if(opsize==3)putword(offs); | |
| 989 else putbyte(offs); | |
| 990 } | |
| 991 } | |
| 992 | |
| 993 void | |
| 994 onebyte(int co) | |
| 995 { | |
| 996 putbyte(co); | |
| 997 } | |
| 998 | |
| 999 void | |
| 1000 twobyte(int co) | |
| 1001 { | |
| 1002 putword(co); | |
| 1003 } | |
| 1004 | |
| 1005 void | |
| 1006 oneimm(int co) | |
| 1007 { | |
| 1008 scanoperands(); | |
| 5 | 1009 if(mode>=3) |
| 1010 error|=2; | |
| 0 | 1011 putbyte(co); |
| 1012 putbyte(operand); | |
| 1013 } | |
| 1014 | |
| 1015 void | |
| 1016 lea(int co) | |
| 1017 { | |
| 1018 putbyte(co); | |
| 1019 scanoperands(); | |
| 1020 if(mode==0) error|=2; | |
| 1021 if(mode<3) { | |
| 1022 opsize=3; | |
| 1023 postbyte=0x8f; | |
| 1024 mode=3; | |
| 1025 } | |
| 1026 if (debug) fprintf(stderr,"DEBUG: lea: mode=%d, opsize=%d, error=%d, postbyte=%02X, *src=%c\n",mode,opsize,error,postbyte,*srcptr); | |
| 1027 doaddress(); | |
| 1028 } | |
| 1029 | |
| 1030 void | |
| 1031 sbranch(int co) | |
| 1032 { | |
| 1033 int offs; | |
| 1034 scanoperands(); | |
| 1035 if(mode!=1&&mode!=2)error|=2; | |
| 1036 offs=(unsigned short)operand-loccounter-2; | |
| 33 | 1037 if(!unknown&&(offs<-128||offs>=128)) { |
| 1038 error|=16;makelonger(glineno); | |
| 1039 if (co==0x20) { | |
| 1040 if(mode!=1&&mode!=2)error|=2; | |
| 1041 putbyte(0x16); | |
| 1042 putword(operand-loccounter-3); | |
| 1043 } else { | |
| 1044 if(mode!=1&&mode!=2)error|=2; | |
| 1045 putbyte(0x10); | |
| 1046 putbyte(co); | |
| 1047 putword(operand-loccounter-4); | |
| 1048 } | |
| 1049 return; | |
| 1050 } | |
| 0 | 1051 if(pass==2&&unknown)error|=4; |
| 1052 putbyte(co); | |
| 1053 putbyte(offs); | |
| 1054 } | |
| 1055 | |
| 1056 void | |
| 1057 lbra(int co) | |
| 1058 { | |
| 1059 scanoperands(); | |
| 1060 if(mode!=1&&mode!=2)error|=2; | |
| 1061 putbyte(co); | |
| 1062 putword(operand-loccounter-3); | |
| 1063 } | |
| 1064 | |
| 1065 void | |
| 1066 lbranch(int co) | |
| 1067 { | |
| 1068 scanoperands(); | |
| 1069 if(mode!=1&&mode!=2)error|=2; | |
| 1070 putword(co); | |
| 1071 putword(operand-loccounter-4); | |
| 1072 } | |
| 1073 | |
| 1074 void | |
| 1075 arith(int co) | |
| 1076 { | |
| 1077 scanoperands(); | |
| 1078 switch(mode) { | |
| 1079 case 0:opsize=2;putbyte(co);break; | |
| 1080 case 1:putbyte(co+0x010);break; | |
| 1081 case 2:putbyte(co+0x030);break; | |
| 1082 default:putbyte(co+0x020); | |
| 1083 } | |
| 1084 doaddress(); | |
| 1085 } | |
| 1086 | |
| 1087 void | |
| 1088 darith(int co) | |
| 1089 { | |
| 1090 scanoperands(); | |
| 1091 switch(mode) { | |
| 1092 case 0:opsize=3;putbyte(co);break; | |
| 1093 case 1:putbyte(co+0x010);break; | |
| 1094 case 2:putbyte(co+0x030);break; | |
| 1095 default:putbyte(co+0x020); | |
| 1096 } | |
| 1097 doaddress(); | |
| 1098 } | |
| 1099 | |
| 1100 void | |
| 1101 d2arith(int co) | |
| 1102 { | |
| 1103 scanoperands(); | |
| 1104 switch(mode) { | |
| 1105 case 0:opsize=3;putword(co);break; | |
| 1106 case 1:putword(co+0x010);break; | |
| 1107 case 2:putword(co+0x030);break; | |
| 1108 default:putword(co+0x020); | |
| 1109 } | |
| 1110 doaddress(); | |
| 1111 } | |
| 1112 | |
| 1113 void | |
| 1114 oneaddr(int co) | |
| 1115 { | |
| 1116 scanoperands(); | |
| 1117 switch(mode) { | |
| 1118 case 0: error|=2;break; | |
| 1119 case 1: putbyte(co);break; | |
| 1120 case 2: putbyte(co+0x70);break; | |
| 1121 default: putbyte(co+0x60);break; | |
| 1122 } | |
| 1123 doaddress(); | |
| 1124 } | |
| 1125 | |
| 1126 void | |
| 1127 tfrexg(int co) | |
| 1128 { | |
| 1129 struct regrecord * p; | |
| 1130 putbyte(co); | |
| 1131 skipspace(); | |
| 1132 scanname(); | |
| 1133 if((p=findreg(namebuf))==0)error|=2; | |
| 1134 else postbyte=(p->tfr)<<4; | |
| 1135 skipspace(); | |
| 1136 if(*srcptr==',')srcptr++;else error|=2; | |
| 1137 skipspace(); | |
| 1138 scanname(); | |
| 1139 if((p=findreg(namebuf))==0)error|=2; | |
| 1140 else postbyte|=p->tfr; | |
| 1141 putbyte(postbyte); | |
| 1142 } | |
| 1143 | |
| 1144 void | |
| 1145 pshpul(int co) | |
| 1146 { | |
| 1147 struct regrecord *p; | |
| 1148 putbyte(co); | |
| 1149 postbyte=0; | |
| 1150 do { | |
| 1151 if(*srcptr==',')srcptr++; | |
| 1152 skipspace(); | |
| 1153 scanname(); | |
| 1154 if((p=findreg(namebuf))==0)error|=2; | |
| 1155 else postbyte|=p->psh; | |
| 1156 skipspace(); | |
| 1157 }while (*srcptr==','); | |
| 1158 putbyte(postbyte); | |
| 1159 } | |
| 1160 | |
| 1161 void | |
| 1162 skipComma() | |
| 1163 { | |
| 1164 while(*srcptr && *srcptr!='\n' && *srcptr!=',')srcptr++; | |
| 1165 if (*srcptr==',') { | |
| 1166 srcptr++; | |
| 1167 } else { | |
| 1168 error|=1; | |
| 1169 } | |
| 1170 } | |
| 1171 | |
| 1172 int modStart; | |
| 1173 | |
| 1174 void os9begin() | |
| 1175 { | |
| 6 | 1176 generate(); |
| 3 | 1177 os9=1; // contiguous code generation ( i.e. ignore org nor rmb ) |
| 0 | 1178 modStart = loccounter; |
| 1179 reset_crc(); | |
| 1180 putword(0x87cd); | |
| 1181 putword(scanexpr(0)-loccounter); // module size | |
| 1182 skipComma(); | |
| 1183 putword(scanexpr(0)-loccounter); // offset to module name | |
| 1184 skipComma(); | |
| 1185 putbyte(scanexpr(0)); // type / language | |
| 1186 skipComma(); | |
| 1187 putbyte(scanexpr(0)); // attribute | |
| 1188 int parity=0; | |
| 1189 for(int i=0; i< 8; i++) parity^=codebuf[i]; | |
| 1190 putbyte(parity^0xff); // header parity | |
| 1191 skipspace(); | |
| 1192 while (*srcptr==',') { // there are some more | |
| 1193 srcptr++; | |
| 1194 putword(scanexpr(0)); | |
| 1195 skipspace(); | |
| 1196 } | |
| 1197 } | |
| 1198 | |
| 1199 void os9end() | |
| 1200 { | |
| 1201 crc = crc ^ 0xffffff; | |
| 1202 | |
| 1203 putbyte((crc>>16)&0xff); | |
| 1204 putbyte((crc>>8)&0xff); | |
| 1205 putbyte(crc&0xff); | |
| 1206 } | |
| 1207 | |
| 1208 | |
| 1209 void | |
| 1210 pseudoop(int co,struct symrecord * lp) | |
| 1211 { | |
| 1212 int i; | |
| 1213 char c; | |
| 1214 char *fname; | |
| 1215 int locsave; | |
| 1216 | |
| 1217 switch(co) { | |
| 1218 case 0:/* RMB */ | |
| 3 | 1219 // in OS9 mode, this generates no data |
| 1220 // loccounter will be reset after any code to the current code generation | |
| 33 | 1221 if (prevrmb) { |
| 1222 oldlc = loccounter = prevrmb-1 ; | |
| 1223 prevrmb = 0; | |
| 1224 } | |
| 0 | 1225 setlabel(lp); |
| 1226 operand=scanexpr(0); | |
| 1227 if(unknown)error|=4; | |
| 1228 loccounter+=operand; | |
| 1229 if(generating&&pass==2) { | |
| 6 | 1230 if(!outmode && !os9 ) { |
| 1231 for(i=0;i<operand;i++) { fputc(0,objfile); } | |
| 1232 } else | |
| 1233 flushhex(); | |
| 0 | 1234 } |
| 1235 hexaddr=loccounter; | |
| 1236 break; | |
| 1237 case 5:/* EQU */ | |
| 1238 operand=scanexpr(0); | |
| 1239 if(!lp)error|=32; | |
| 1240 else { | |
| 1241 if(lp->cat==13||lp->cat==6|| | |
| 1242 (lp->value==(unsigned short)operand&&pass==2)) { | |
| 1243 if(exprcat==2)lp->cat=2; | |
| 1244 else lp->cat=0; | |
| 1245 lp->value=operand; | |
| 33 | 1246 } // else error|=8; |
| 0 | 1247 } |
| 1248 break; | |
| 1249 case 7:/* FCB */ | |
| 6 | 1250 generate(); |
| 0 | 1251 setlabel(lp); |
| 1252 do { | |
| 1253 if(*srcptr==',')srcptr++; | |
| 1254 skipspace(); | |
| 1255 if(*srcptr=='\"') { | |
| 1256 srcptr++; | |
| 1257 while(*srcptr!='\"'&&*srcptr) | |
| 1258 putbyte(*srcptr++); | |
| 1259 if(*srcptr=='\"')srcptr++; | |
| 1260 } else { | |
| 1261 putbyte(scanexpr(0)); | |
| 1262 if(unknown&&pass==2)error|=4; | |
| 1263 } | |
| 1264 skipspace(); | |
| 1265 } while(*srcptr==','); | |
| 1266 break; | |
| 1267 case 8:/* FCC */ | |
| 6 | 1268 generate(); |
| 0 | 1269 setlabel(lp); |
| 1270 skipspace(); | |
| 1271 c=*srcptr++; | |
| 1272 while(*srcptr!=c&&*srcptr) | |
| 1273 putbyte(*srcptr++); | |
| 1274 if(*srcptr==c)srcptr++; | |
| 1275 break; | |
| 1276 case 9:/* FDB */ | |
| 6 | 1277 generate(); |
| 0 | 1278 setlabel(lp); |
| 1279 do { | |
| 1280 if(*srcptr==',')srcptr++; | |
| 1281 skipspace(); | |
| 1282 putword(scanexpr(0)); | |
| 1283 if(unknown&&pass==2)error|=4; | |
| 1284 skipspace(); | |
| 1285 } while(*srcptr==','); | |
| 1286 break; | |
| 1287 case 23 :/* FCS */ | |
| 6 | 1288 generate(); |
| 0 | 1289 setlabel(lp); |
| 1290 skipspace(); | |
| 1291 int sep = *srcptr; | |
| 1292 if(sep=='\"' || sep=='/') { | |
| 1293 srcptr++; | |
| 1294 while(*srcptr!=sep&&*srcptr) | |
| 1295 putbyte(*srcptr++); | |
| 1296 if(*srcptr==sep)srcptr++; | |
| 1297 codebuf[codeptr-1] |= 0x80; // os9 string termination | |
| 1298 } | |
| 1299 break; | |
| 1300 case 1: /* ELSE */ | |
| 1301 suppress=1; | |
| 1302 break; | |
| 1303 case 21: /* IFP1 */ | |
| 1304 if(pass==2)suppress=2; | |
| 1305 break; | |
| 1306 case 29: /* IFGT */ | |
| 1307 operand=scanexpr(0); | |
| 33 | 1308 if(operand<=0)suppress=2; |
| 0 | 1309 break; |
| 1310 case 31: /* IFLT */ | |
| 1311 operand=scanexpr(0); | |
| 33 | 1312 if(operand>=0)suppress=2; |
| 0 | 1313 break; |
| 3 | 1314 case 30: /* IFEQ */ |
| 0 | 1315 operand=scanexpr(0); |
| 33 | 1316 if(operand!=0)suppress=2; |
| 0 | 1317 break; |
| 3 | 1318 case 28: /* IFNE */ |
| 0 | 1319 case 10: /* IF */ |
| 1320 operand=scanexpr(0); | |
| 33 | 1321 if(operand==0)suppress=2; |
| 1322 break; | |
| 1323 case 33: /* IFNDEF */ | |
| 1324 operand=scanexpr(0); | |
| 1325 if(!unknown)suppress=2; | |
| 0 | 1326 break; |
| 1327 case 12: /* ORG */ | |
| 1328 operand=scanexpr(0); | |
| 1329 if(unknown)error|=4; | |
| 3 | 1330 if(generating&&pass==2&&!outmode&&!os9) { |
| 0 | 1331 for(i=0;i<(unsigned short)operand-loccounter;i++) |
| 3 | 1332 fputc(0,objfile); |
| 1333 } else flushhex(); | |
| 0 | 1334 loccounter=operand; |
| 1335 hexaddr=loccounter; | |
| 1336 break; | |
| 1337 case 14: /* SETDP */ | |
| 1338 operand=scanexpr(0); | |
| 1339 if(unknown)error|=4; | |
| 1340 if(!(operand&255))operand=(unsigned short)operand>>8; | |
| 1341 if((unsigned)operand>255)operand=-1; | |
| 1342 dpsetting=operand; | |
| 1343 break; | |
| 1344 case 15: /* SET */ | |
| 1345 operand=scanexpr(0); | |
| 1346 if(!lp)error|=32; | |
| 1347 else { | |
| 1348 if(lp->cat&1||lp->cat==6) { | |
| 1349 if(exprcat==2)lp->cat=3; | |
| 1350 else lp->cat=1; | |
| 1351 lp->value=operand; | |
| 33 | 1352 } // else error|=8; |
| 0 | 1353 } |
| 1354 break; | |
| 1355 case 2: /* END */ | |
| 1356 terminate=1; | |
| 1357 break; | |
| 1358 case 27: /* USE */ | |
| 6 | 1359 // locsave = loccounter ; |
| 0 | 1360 case 16: /* INCLUDE */ |
| 1361 skipspace(); | |
| 1362 if(*srcptr=='"')srcptr++; | |
| 1363 i = 0; | |
| 1364 for(i=0; !(srcptr[i]==0||srcptr[i]=='"'); i++); | |
| 1365 int len = i; | |
| 1366 fname = calloc(1,len); | |
| 1367 for(i=0;i<len;i++) { | |
| 1368 if(*srcptr==0||*srcptr=='"')break; | |
| 1369 fname[i]=*srcptr++; | |
| 1370 } | |
| 1371 fname[i]=0; | |
| 1372 processfile(fname); | |
| 1373 codeptr=0; | |
| 1374 srcline[0]=0; | |
| 3 | 1375 // if (co==27) loccounter = locsave; |
| 0 | 1376 break; |
| 1377 case 24: /* MOD */ | |
| 6 | 1378 oldlc = loccounter = 0; |
| 0 | 1379 setlabel(lp); |
| 1380 os9begin(); | |
| 1381 break; | |
| 1382 case 25: /* EMOD */ | |
| 1383 os9end(); | |
| 1384 break; | |
| 1385 case 32: /* OS9 */ | |
| 6 | 1386 generate(); |
| 0 | 1387 setlabel(lp); |
| 3 | 1388 putword(0x103f); // SWI2 |
| 0 | 1389 putbyte(scanexpr(0)); |
| 15 | 1390 if(unknown&&pass==2)error|=4; |
| 0 | 1391 break; |
| 1392 case 18: /* TTL */ | |
| 1393 break; | |
| 1394 case 19: /* OPT */ | |
| 1395 case 26: /* NAM */ | |
| 1396 case 20: /* PAG */ | |
| 1397 case 3: /* ENDIF/ENDC */ | |
| 1398 break; | |
| 1399 } | |
| 1400 } | |
| 1401 | |
| 1402 | |
| 1403 void | |
| 1404 processline() | |
| 1405 { | |
| 1406 struct symrecord * lp; | |
| 1407 struct oprecord * op; | |
| 1408 int co; | |
| 1409 char c; | |
| 1410 srcptr=srcline; | |
| 1411 oldlc=loccounter; | |
| 5 | 1412 // error=0; |
| 0 | 1413 unknown=0;certain=1; |
| 1414 lp=0; | |
| 1415 codeptr=0; | |
| 1416 if(isalnum(*srcptr)) { | |
| 1417 scanname();lp=findsym(namebuf); | |
| 1418 if(*srcptr==':') srcptr++; | |
| 26 | 1419 if(lp && pass==2) { |
| 1420 oldlc = lp->value; | |
| 1421 } | |
| 0 | 1422 } |
| 1423 skipspace(); | |
| 1424 if(isalnum(*srcptr)) { | |
| 1425 scanname(); | |
| 1426 op=findop(namebuf); | |
| 1427 if(op) { | |
| 1428 if(op->cat!=13){ | |
| 6 | 1429 generate(); |
| 0 | 1430 setlabel(lp); |
| 1431 } | |
| 1432 co=op->code; | |
| 1433 switch(op->cat) { | |
| 1434 case 0:onebyte(co);break; | |
| 1435 case 1:twobyte(co);break; | |
| 1436 case 2:oneimm(co);break; | |
| 1437 case 3:lea(co);break; | |
| 1438 case 4:sbranch(co);break; | |
| 1439 case 5:lbranch(co);break; | |
| 1440 case 6:lbra(co);break; | |
| 1441 case 7:arith(co);break; | |
| 1442 case 8:darith(co);break; | |
| 1443 case 9:d2arith(co);break; | |
| 1444 case 10:oneaddr(co);break; | |
| 1445 case 11:tfrexg(co);break; | |
| 1446 case 12:pshpul(co);break; | |
| 1447 case 13:pseudoop(co,lp); | |
| 1448 } | |
| 1449 c=*srcptr; | |
| 1450 if (debug) fprintf(stderr,"DEBUG: processline: mode=%d, opsize=%d, error=%d, postbyte=%02X c=%c\n",mode,opsize,error,postbyte,c); | |
| 1451 if(c!=' '&&*(srcptr-1)!=' '&&c!=0&&c!=';')error|=2; | |
| 1452 } | |
| 1453 else error|=0x8000; | |
| 26 | 1454 } else { |
| 33 | 1455 if (lp) { |
| 1456 lp->next = prevlp; | |
| 1457 prevlp = lp; // os9 mode label can be data or code | |
| 1458 } | |
| 26 | 1459 } |
| 0 | 1460 if(pass==2) { |
| 1461 outbuffer(); | |
| 1462 if(listing)outlist(); | |
| 1463 } | |
| 1464 if(error)report(); | |
| 1465 loccounter+=codeptr; | |
| 25 | 1466 if (os9 && prevloc==0 ) { |
| 1467 prevloc = loccounter+1; | |
| 1468 oldlc = loccounter = 0; | |
| 1469 } | |
| 0 | 1470 } |
| 1471 | |
| 1472 void | |
| 1473 suppressline() | |
| 1474 { | |
| 1475 struct oprecord * op; | |
| 1476 srcptr=srcline; | |
| 1477 oldlc=loccounter; | |
| 1478 codeptr=0; | |
| 1479 if(isalnum(*srcptr)) { | |
| 1480 scanname(); | |
| 1481 if(*srcptr==':')srcptr++; | |
| 1482 } | |
| 1483 skipspace(); | |
| 1484 scanname();op=findop(namebuf); | |
| 1485 if(op && op->cat==13) { | |
| 33 | 1486 if(op->code==10||op->code==13||op->code==29||op->code==28||op->code==21||op->code==30||op->code==31||op->code==33) ifcount++; |
| 0 | 1487 else if(op->code==3) { |
| 1488 if(ifcount>0)ifcount--;else if(suppress==1|suppress==2)suppress=0; | |
| 1489 } else if(op->code==1) { | |
| 1490 if(ifcount==0 && suppress==2)suppress=0; | |
| 1491 } | |
| 1492 } | |
| 6 | 1493 if(pass==2&&listing)outlist(); } |
| 0 | 1494 |
| 1495 void | |
| 1496 usage(char*nm) | |
| 1497 { | |
| 1498 fprintf(stderr,"Usage: %s [-o objname] [-l listname] [-s srecord-file] srcname\n",nm); | |
| 1499 exit(2); | |
| 1500 } | |
| 1501 | |
| 1502 char * | |
| 1503 strconcat(char *s,int spos,char *d) | |
| 1504 { | |
| 1505 int slen = strlen(s); | |
| 1506 int dlen = strlen(d); | |
| 1507 if ( spos == 0) spos = slen; | |
| 1508 char *out = calloc(1,spos+dlen+1); | |
| 1509 int i = 0; | |
| 1510 for(; i< spos; i++ ) out[i] = s[i]; | |
| 1511 for(; i< spos+dlen+1; i++ ) out[i] = *d++; | |
| 1512 return out; | |
| 1513 } | |
| 1514 | |
| 1515 | |
| 1516 void | |
| 1517 getoptions(int c,char*v[]) | |
| 1518 { | |
| 6 | 1519 int i=1; |
| 0 | 1520 if(c==1)usage(v[0]); |
| 6 | 1521 while(v[i]) { |
| 1522 if(strcmp(v[i],"-d")==0) { | |
| 1523 debug=1; | |
| 1524 i++; | |
| 1525 } else if(strcmp(v[i],"-o")==0) { | |
| 1526 objname = v[i+1]; | |
| 1527 i+=2; | |
| 1528 } else if(strcmp(v[i],"-s")==0) { | |
| 1529 objname=v[i+1]; | |
| 1530 outmode=1; | |
| 1531 i+=2; | |
| 1532 } else if(strcmp(v[i],"-l")==0) { | |
| 1533 listname=v[i+1]; | |
| 1534 i+=2; | |
| 33 | 1535 } else if(strcmp(v[i],"-I")==0) { |
| 1536 struct incl *j = (struct incl *)malloc(sizeof(struct incl)); | |
| 1537 j->name = v[i+1]; | |
| 1538 j->next = 0; | |
| 1539 if (!incls) incls = j; | |
| 1540 else { | |
| 1541 struct incl *k=incls ; | |
| 1542 for(; k->next ; k = k->next ) ; | |
| 1543 k->next = j; | |
| 1544 } | |
| 1545 i+=2; | |
| 6 | 1546 } else if(*v[i]=='-') { |
| 1547 usage(v[0]); | |
| 1548 } else { | |
| 1549 if (srcname) usage(v[0]); | |
| 1550 srcname=v[i]; | |
| 1551 i++; | |
| 1552 } | |
| 0 | 1553 } |
| 1554 if(objname==0) { | |
| 1555 for(i=0;srcname[i]!='.' && srcname[i]!=0 ;i++) ; | |
| 1556 objname = strconcat(srcname,i,".b"); | |
| 1557 } | |
| 1558 listing=(listname!=0); | |
| 1559 } | |
| 1560 | |
| 1561 void | |
| 1562 expandline() | |
| 1563 { | |
| 1564 int i=0,j=0,k,j1; | |
| 1565 for(i=0;i<128&&j<128;i++) | |
| 1566 { | |
| 1567 if(inpline[i]=='\n') { | |
| 1568 srcline[j]=0;break; | |
| 1569 } | |
| 1570 if(inpline[i]=='\t') { | |
| 1571 j1=j; | |
| 1572 for(k=0;k<8-j1%8 && j<128;k++)srcline[j++]=' '; | |
| 1573 }else srcline[j++]=inpline[i]; | |
| 1574 } | |
| 1575 srcline[127]=0; | |
| 1576 } | |
| 1577 | |
| 1578 | |
| 1579 void | |
| 1580 processfile(char *name) | |
| 1581 { | |
| 1582 char *oldname; | |
| 1583 int oldno; | |
| 1584 FILE *srcfile; | |
| 1585 oldname=curname; | |
| 1586 curname=name; | |
| 1587 oldno=lineno; | |
| 1588 lineno=0; | |
| 1589 if((srcfile=fopen(name,"r"))==0) { | |
| 6 | 1590 int i = 0; |
| 1591 if (oldname) { | |
| 1592 i = strlen(oldname); | |
| 1593 while(i>0 && oldname[i]!='/') i--; | |
| 1594 } | |
| 0 | 1595 if (i>0) { |
| 1596 char *next = strconcat(oldname,i+1,name); | |
| 33 | 1597 if((srcfile=fopen(next,"r"))!=0) { |
| 1598 curname = next; | |
| 0 | 1599 } |
| 33 | 1600 } |
| 1601 if (!srcfile) { | |
| 1602 for( struct incl *d = incls; d ; d = d->next) { | |
| 1603 char *next = strconcat(d->name,0,name); | |
| 1604 if((srcfile=fopen(next,"r"))!=0) { | |
| 1605 curname = next; | |
| 1606 break; | |
| 1607 } | |
| 1608 } | |
| 1609 } | |
| 1610 } | |
| 1611 if (!srcfile) { | |
| 0 | 1612 fprintf(stderr,"Cannot open source file %s\n",name); |
| 1613 exit(4); | |
| 1614 } | |
| 1615 while(!terminate&&fgets(inpline,128,srcfile)) { | |
| 1616 expandline(); | |
| 33 | 1617 lineno++; glineno++; |
| 0 | 1618 srcptr=srcline; |
| 1619 if(suppress)suppressline(); else processline(); | |
| 1620 } | |
| 26 | 1621 setlabel(0); // process prevlp |
| 0 | 1622 fclose(srcfile); |
| 1623 if(suppress) { | |
| 1624 fprintf(stderr,"improperly nested IF statements in %s",curname); | |
| 1625 errors++; | |
| 1626 suppress=0; | |
| 1627 } | |
| 1628 lineno=oldno; | |
| 1629 curname=oldname; | |
| 1630 } | |
| 1631 | |
| 1632 int | |
| 1633 main(int argc,char *argv[]) | |
| 1634 { | |
| 1635 char c; | |
| 1636 getoptions(argc,argv); | |
| 1637 pass=1; | |
| 1638 errors=0; | |
| 1639 generating=0; | |
| 1640 terminate=0; | |
| 1641 processfile(srcname); | |
| 1642 if(errors) { | |
| 1643 fprintf(stderr,"%d Pass 1 Errors, Continue?",errors); | |
| 1644 c=getchar(); | |
| 1645 if(c=='n'||c=='N') exit(3); | |
| 1646 } | |
| 33 | 1647 do { |
| 0 | 1648 pass=2; |
| 6 | 1649 prevloc = 0; |
| 0 | 1650 loccounter=0; |
| 1651 errors=0; | |
| 1652 generating=0; | |
| 1653 terminate=0; | |
| 33 | 1654 glineno=0; |
| 0 | 1655 if(listing&&((listfile=fopen(listname,"w"))==0)) { |
| 1656 fprintf(stderr,"Cannot open list file"); | |
| 1657 exit(4); | |
| 1658 } | |
| 1659 if((objfile=fopen(objname,outmode?"w":"wb"))==0) { | |
| 1660 fprintf(stderr,"Cannot write object file\n"); | |
| 1661 exit(4); | |
| 1662 } | |
| 1663 processfile(srcname); | |
| 33 | 1664 } while (longer()); |
| 0 | 1665 fprintf(stderr,"%d Pass 2 errors.\n",errors); |
| 1666 if(listing) { | |
| 1667 fprintf(listfile,"%d Pass 2 errors.\n",errors); | |
| 1668 outsymtable(); | |
| 1669 fclose(listfile); | |
| 1670 } | |
| 1671 if(outmode){ | |
| 1672 flushhex(); | |
| 1673 fprintf(objfile,"S9030000FC\n"); | |
| 1674 } | |
| 1675 fclose(objfile); | |
| 1676 return 0; | |
| 1677 } | |
| 1678 |