fgen.l revision 1.41
1 %{ 2 /* $NetBSD: fgen.l,v 1.41 2024/05/20 20:46:05 wiz Exp $ */ 3 /* FLEX input for FORTH input file scanner */ 4 /* 5 * Copyright (c) 1998 Eduardo Horvath. 6 * All rights reserved. 7 * 8 * Redistribution and use in source and binary forms, with or without 9 * modification, are permitted provided that the following conditions 10 * are met: 11 * 1. Redistributions of source code must retain the above copyright 12 * notice, this list of conditions and the following disclaimer. 13 * 2. Redistributions in binary form must reproduce the above copyright 14 * notice, this list of conditions and the following disclaimer in the 15 * documentation and/or other materials provided with the distribution. 16 * 17 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 18 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 19 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 20 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 21 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 22 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 23 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 24 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 25 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 26 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 27 */ 28 /* 29 Specifications are as follows: 30 31 The function "yylex()" always returns a pointer to a structure: 32 33 struct tok { 34 int type; 35 char *text; 36 } 37 #define TOKEN struct tok 38 */ 39 #include <sys/cdefs.h> 40 #ifdef HAVE_NBTOOL_CONFIG_H 41 #include "nbtool_config.h" 42 #endif 43 44 #if defined(__RCSID) && !defined(lint) 45 __RCSID("$NetBSD: fgen.l,v 1.41 2024/05/20 20:46:05 wiz Exp $"); 46 #endif 47 48 %} 49 50 %option yylineno 51 52 hex [0-9A-Fa-f] 53 hexdot [0-9A-Fa-f.] 54 white [ \t\n\r\f] 55 tail {white} 56 57 %{ 58 #include <sys/types.h> 59 #include <arpa/inet.h> 60 61 #include <assert.h> 62 #include <err.h> 63 #include <errno.h> 64 #include <fcntl.h> 65 #include <stdarg.h> 66 #include <stdio.h> 67 #include <string.h> 68 #include <unistd.h> 69 #include <util.h> 70 71 #include "fgen.h" 72 static TOKEN ltoken; 73 74 /* 75 * Global variables that control the parse state. 76 */ 77 78 static struct fcode *dictionary = NULL; 79 static struct macro *aliases = NULL; 80 static int outf = 1; /* stdout */ 81 static int state = 0; 82 static int nextfcode = 0x800; 83 static int numbase = TOK_HEX; 84 static long outpos; 85 static char *outbuf = NULL; 86 static char *outfile, *infile; 87 #define BUFCLICK (1024*1024) 88 static size_t outbufsiz = 0; 89 static int offsetsize = 8; 90 static int defining = 0; 91 static int tokenizer = 0; 92 static int need_end0 = 1; 93 94 #define PSTKSIZ 1024 95 static Cell parse_stack[PSTKSIZ]; 96 static int parse_stack_ptr = 0; 97 98 static void token_err(int, const char *, const char *, const char *, ...) 99 __printflike(4, 5) __dead; 100 static YY_DECL; 101 102 static int debug = 0; 103 #define ASSERT if (debug) assert 104 #define STATE(y, x) do { if (debug) printf("%lx State %s: token `%s'\n", outpos, x, y); } while (0) 105 static int mark_fload = 0; 106 107 %} 108 109 %option nounput 110 111 %% 112 113 0 { ltoken.type = TOK_OTHER; ltoken.text = yytext; return <oken; } 114 115 1 { ltoken.type = TOK_OTHER; ltoken.text = yytext; return <oken; } 116 117 2 { ltoken.type = TOK_OTHER; ltoken.text = yytext; return <oken; } 118 119 3 { ltoken.type = TOK_OTHER; ltoken.text = yytext; return <oken; } 120 121 -1 { ltoken.type = TOK_OTHER; ltoken.text = yytext; return <oken; } 122 123 \. { ltoken.type = TOK_OTHER; ltoken.text = yytext; return <oken; } 124 125 {white}* /* whitespace -- keep looping */ ; 126 127 \\[^\n]*\n /* end of line comment -- keep looping */ { STATE(yytext, "EOL comment"); } 128 129 -?{hex}{hexdot}* { ltoken.type = TOK_NUMBER; ltoken.text = yytext; 130 return <oken; } 131 132 \'.\' { ltoken.type = TOK_C_LIT; ltoken.text = yytext; return <oken; } 133 134 \"{white}*(\\\"|[^"])*\" { ltoken.type = TOK_STRING_LIT; ltoken.text = yytext; 135 return <oken; } /* String started by `"' or `."' */ 136 137 \.\({white}*(\\\"|[^)])*\) { ltoken.type = TOK_PSTRING; ltoken.text = yytext; 138 return <oken; } /* String of type `.(.....)' */ 139 140 \.\"{white}*(\\\"|[^"])*\" { ltoken.type = TOK_PSTRING; ltoken.text = yytext; 141 return <oken; } 142 143 [aA][bB][oO][rR][tT]\"{white}*(\\\"|[^"])*\" { ltoken.type = TOK_ABORT_S; 144 ltoken.text = yytext; return <oken; } 145 146 "(" { ltoken.type = TOK_COMMENT; ltoken.text = yytext; 147 return <oken; } 148 149 ":" { ltoken.type = TOK_COLON; ltoken.text = yytext; 150 return <oken; } 151 152 ";" { ltoken.type = TOK_SEMICOLON; ltoken.text = yytext; 153 return <oken; } 154 155 \' { ltoken.type = TOK_TOKENIZE; ltoken.text = yytext; 156 return <oken; } 157 158 [aA][gG][aA][iI][nN] { ltoken.type = TOK_AGAIN; ltoken.text = yytext; 159 return <oken; } 160 161 [aA][lL][iI][aA][sS] { ltoken.type = TOK_ALIAS; ltoken.text = yytext; 162 return <oken; } 163 164 \[\'\] { ltoken.type = TOK_GETTOKEN; ltoken.text = yytext; 165 return <oken; } 166 167 [aA][sS][cC][iI][iI] { ltoken.type = TOK_ASCII; ltoken.text = yytext; 168 return <oken; } 169 170 [bB][eE][gG][iI][nN] { ltoken.type = TOK_BEGIN; ltoken.text = yytext; 171 return <oken; } 172 173 [bB][uU][fF][fF][eE][rR]: { ltoken.type = TOK_BUFFER; ltoken.text = yytext; 174 return <oken; } 175 176 [cC][aA][sS][eE] { ltoken.type = TOK_CASE; ltoken.text = yytext; 177 return <oken; } 178 179 [cC][oO][nN][sS][tT][aA][nN][tT] { ltoken.type = TOK_CONSTANT; ltoken.text = yytext; 180 return <oken; } 181 182 [cC][oO][nN][tT][rR][oO][lL] { ltoken.type = TOK_CONTROL; ltoken.text = yytext; 183 return <oken; } 184 185 [cC][rR][eE][aA][tT][eE] { ltoken.type = TOK_CREATE; ltoken.text = yytext; 186 return <oken; } 187 188 [dD]# { ltoken.type = TOK_DECIMAL; ltoken.text = yytext; 189 return <oken; } 190 191 [dD][eE][cC][iI][mM][aA][lL] { ltoken.type = TOK_DECIMAL; ltoken.text = yytext; 192 return <oken; } 193 194 [dD][eE][fF][eE][rR] { ltoken.type = TOK_DEFER; ltoken.text = yytext; 195 return <oken; } 196 197 \??[dD][oO] { ltoken.type = TOK_DO; ltoken.text = yytext; 198 return <oken; } 199 200 [eE][lL][sS][eE] { ltoken.type = TOK_ELSE; ltoken.text = yytext; 201 return <oken; } 202 203 [eE][nN][dD]0 { ltoken.type = TOK_END0; ltoken.text = yytext; 204 return <oken; } 205 206 [eE][nN][dD][cC][aA][sS][eE] { ltoken.type = TOK_ENDCASE; ltoken.text = yytext; 207 return <oken; } 208 209 [eE][nN][dD][oO][fF] { ltoken.type = TOK_ENDOF; ltoken.text = yytext; 210 return <oken; } 211 212 [eE][xX][tT][eE][rR][nN][aA][lL] { ltoken.type = TOK_EXTERNAL; ltoken.text = yytext; 213 return <oken; } 214 215 [fF][cC][oO][dD][eE]-[vV][eE][rR][sS][iI][oO][nN]2 { 216 ltoken.type = TOK_FCODE_VERSION2; ltoken.text = yytext; 217 return <oken; } 218 219 [fF][cC][oO][dD][eE]-[eE][nN][dD] { ltoken.type = TOK_FCODE_END; ltoken.text = yytext; 220 return <oken; } 221 222 [fF][iI][eE][lL][dD] { ltoken.type = TOK_FIELD; ltoken.text = yytext; 223 return <oken; } 224 225 [hH]# { ltoken.type = TOK_HEX; ltoken.text = yytext; 226 return <oken; } 227 228 [hH][eE][aA][dD][eE][rR][lL][eE][sS][sS] { ltoken.type = TOK_HEADERLESS; ltoken.text = yytext; 229 return <oken; } 230 231 [hH][eE][aA][dD][eE][rR][sS] { ltoken.type = TOK_HEADERS; ltoken.text = yytext; 232 return <oken; } 233 234 [hH][eE][xX] { ltoken.type = TOK_HEX; ltoken.text = yytext; 235 return <oken; } 236 237 [iI][fF] { ltoken.type = TOK_IF; ltoken.text = yytext; 238 return <oken; } 239 240 \??[lL][eE][aA][vV][eE] { ltoken.type = TOK_LEAVE; ltoken.text = yytext; 241 return <oken; } 242 243 \+?[lL][oO][oO][pP] { ltoken.type = TOK_LOOP; ltoken.text = yytext; 244 return <oken; } 245 246 [oO]# { ltoken.type = TOK_OCTAL; ltoken.text = yytext; 247 return <oken; } 248 249 [oO][cC][tT][aA][lL] { ltoken.type = TOK_OCTAL; ltoken.text = yytext; 250 return <oken; } 251 252 [oO][fF] { ltoken.type = TOK_OF; ltoken.text = yytext; 253 return <oken; } 254 255 [oO][fF][fF][sS][eE][tT]16 { ltoken.type = TOK_OFFSET16; ltoken.text = yytext; 256 return <oken; } 257 258 [rR][eE][pP][eE][aA][tT] { ltoken.type = TOK_REPEAT; ltoken.text = yytext; 259 return <oken; } 260 261 [sS][tT][aA][rR][tT][0124] { ltoken.type = TOK_STARTX; ltoken.text = yytext; 262 return <oken; } 263 264 [tT][hH][eE][nN] { ltoken.type = TOK_THEN; ltoken.text = yytext; 265 return <oken; } 266 267 [tT][oO] { ltoken.type = TOK_TO; ltoken.text = yytext; 268 return <oken; } 269 270 [uU][nN][tT][iI][lL] { ltoken.type = TOK_UNTIL; ltoken.text = yytext; 271 return <oken; } 272 273 [vV][aA][lL][uU][eE] { ltoken.type = TOK_VALUE; ltoken.text = yytext; 274 return <oken; } 275 276 [vV][aA][rR][iI][aA][bB][lL][eE] { ltoken.type = TOK_VARIABLE; ltoken.text = yytext; 277 return <oken; } 278 279 [vV][eE][rR][sS][iI][oO][nN]1 { ltoken.type = TOK_VERSION1; ltoken.text = yytext; 280 return <oken; } 281 282 [wW][hH][iI][lL][eE] { ltoken.type = TOK_WHILE; ltoken.text = yytext; 283 return <oken; } 284 285 tokenizer\[ { ltoken.type = TOK_BEGTOK; ltoken.text = yytext; 286 return <oken; } 287 288 emit-byte { ltoken.type = TOK_EMIT_BYTE; ltoken.text = yytext; 289 return <oken; } 290 291 \]tokenizer { ltoken.type = TOK_ENDTOK; ltoken.text = yytext; 292 return <oken; } 293 294 [fF][lL][oO][aA][dD] { ltoken.type = TOK_FLOAD; ltoken.text = yytext; 295 return <oken; } 296 297 298 [^ \n\t\r\f]+ { ltoken.type = TOK_OTHER; ltoken.text = yytext; 299 return <oken; } 300 301 <<EOF>> { return NULL; } 302 %% 303 304 /* Function definitions */ 305 static void push(Cell); 306 static Cell pop(void); 307 static int depth(void); 308 static int fadd(struct fcode *, struct fcode *); 309 static struct fcode *flookup(struct fcode *, const char *); 310 static int aadd(struct macro *, struct macro *); 311 static struct macro *alookup(struct macro *, const char *); 312 static void initdic(void); 313 __dead static void usage(void); 314 static void tokenize(YY_BUFFER_STATE); 315 static int emit(const char *); 316 static int spit(long); 317 static int offspit(long); 318 static void sspit(const char *); 319 static int apply_macros(YY_BUFFER_STATE, const char *); 320 static Cell cvt(const char *, char **, int base); 321 322 /* 323 * Standard FCode names and numbers. Includes standard 324 * tokenizer aliases. 325 */ 326 static struct fcode fcodes[] = { 327 { "end0", 0x0000, 0, NULL, NULL }, 328 { "b(lit)", 0x0010, 0, NULL, NULL }, 329 { "b(')", 0x0011, 0, NULL, NULL }, 330 { "b(\")", 0x0012, 0, NULL, NULL }, 331 { "bbranch", 0x0013, 0, NULL, NULL }, 332 { "b?branch", 0x0014, 0, NULL, NULL }, 333 { "b(loop)", 0x0015, 0, NULL, NULL }, 334 { "b(+loop)", 0x0016, 0, NULL, NULL }, 335 { "b(do)", 0x0017, 0, NULL, NULL }, 336 { "b(?do)", 0x0018, 0, NULL, NULL }, 337 { "i", 0x0019, 0, NULL, NULL }, 338 { "j", 0x001a, 0, NULL, NULL }, 339 { "b(leave)", 0x001b, 0, NULL, NULL }, 340 { "b(of)", 0x001c, 0, NULL, NULL }, 341 { "execute", 0x001d, 0, NULL, NULL }, 342 { "+", 0x001e, 0, NULL, NULL }, 343 { "-", 0x001f, 0, NULL, NULL }, 344 { "*", 0x0020, 0, NULL, NULL }, 345 { "/", 0x0021, 0, NULL, NULL }, 346 { "mod", 0x0022, 0, NULL, NULL }, 347 { "and", 0x0023, 0, NULL, NULL }, 348 { "or", 0x0024, 0, NULL, NULL }, 349 { "xor", 0x0025, 0, NULL, NULL }, 350 { "invert", 0x0026, 0, NULL, NULL }, 351 { "lshift", 0x0027, 0, NULL, NULL }, 352 { "rshift", 0x0028, 0, NULL, NULL }, 353 { ">>a", 0x0029, 0, NULL, NULL }, 354 { "/mod", 0x002a, 0, NULL, NULL }, 355 { "u/mod", 0x002b, 0, NULL, NULL }, 356 { "negate", 0x002c, 0, NULL, NULL }, 357 { "abs", 0x002d, 0, NULL, NULL }, 358 { "min", 0x002e, 0, NULL, NULL }, 359 { "max", 0x002f, 0, NULL, NULL }, 360 { ">r", 0x0030, 0, NULL, NULL }, 361 { "r>", 0x0031, 0, NULL, NULL }, 362 { "r@", 0x0032, 0, NULL, NULL }, 363 { "exit", 0x0033, 0, NULL, NULL }, 364 { "0=", 0x0034, 0, NULL, NULL }, 365 { "0<>", 0x0035, 0, NULL, NULL }, 366 { "0<", 0x0036, 0, NULL, NULL }, 367 { "0<=", 0x0037, 0, NULL, NULL }, 368 { "0>", 0x0038, 0, NULL, NULL }, 369 { "0>=", 0x0039, 0, NULL, NULL }, 370 { "<", 0x003a, 0, NULL, NULL }, 371 { ">", 0x003b, 0, NULL, NULL }, 372 { "=", 0x003c, 0, NULL, NULL }, 373 { "<>", 0x003d, 0, NULL, NULL }, 374 { "u>", 0x003e, 0, NULL, NULL }, 375 { "u<=", 0x003f, 0, NULL, NULL }, 376 { "u<", 0x0040, 0, NULL, NULL }, 377 { "u>=", 0x0041, 0, NULL, NULL }, 378 { ">=", 0x0042, 0, NULL, NULL }, 379 { "<=", 0x0043, 0, NULL, NULL }, 380 { "between", 0x0044, 0, NULL, NULL }, 381 { "within", 0x0045, 0, NULL, NULL }, 382 { "drop", 0x0046, 0, NULL, NULL }, 383 { "dup", 0x0047, 0, NULL, NULL }, 384 { "over", 0x0048, 0, NULL, NULL }, 385 { "swap", 0x0049, 0, NULL, NULL }, 386 { "rot", 0x004a, 0, NULL, NULL }, 387 { "-rot", 0x004b, 0, NULL, NULL }, 388 { "tuck", 0x004c, 0, NULL, NULL }, 389 { "nip", 0x004d, 0, NULL, NULL }, 390 { "pick", 0x004e, 0, NULL, NULL }, 391 { "roll", 0x004f, 0, NULL, NULL }, 392 { "?dup", 0x0050, 0, NULL, NULL }, 393 { "depth", 0x0051, 0, NULL, NULL }, 394 { "2drop", 0x0052, 0, NULL, NULL }, 395 { "2dup", 0x0053, 0, NULL, NULL }, 396 { "2over", 0x0054, 0, NULL, NULL }, 397 { "2swap", 0x0055, 0, NULL, NULL }, 398 { "2rot", 0x0056, 0, NULL, NULL }, 399 { "2/", 0x0057, 0, NULL, NULL }, 400 { "u2/", 0x0058, 0, NULL, NULL }, 401 { "2*", 0x0059, 0, NULL, NULL }, 402 { "/c", 0x005a, 0, NULL, NULL }, 403 { "/w", 0x005b, 0, NULL, NULL }, 404 { "/l", 0x005c, 0, NULL, NULL }, 405 { "/n", 0x005d, 0, NULL, NULL }, 406 { "ca+", 0x005e, 0, NULL, NULL }, 407 { "wa+", 0x005f, 0, NULL, NULL }, 408 { "la+", 0x0060, 0, NULL, NULL }, 409 { "na+", 0x0061, 0, NULL, NULL }, 410 { "char+", 0x0062, 0, NULL, NULL }, 411 { "wa1+", 0x0063, 0, NULL, NULL }, 412 { "la1+", 0x0064, 0, NULL, NULL }, 413 { "cell+", 0x0065, 0, NULL, NULL }, 414 { "chars", 0x0066, 0, NULL, NULL }, 415 { "/w*", 0x0067, 0, NULL, NULL }, 416 { "/l*", 0x0068, 0, NULL, NULL }, 417 { "cells", 0x0069, 0, NULL, NULL }, 418 { "on", 0x006a, 0, NULL, NULL }, 419 { "off", 0x006b, 0, NULL, NULL }, 420 { "+!", 0x006c, 0, NULL, NULL }, 421 { "@", 0x006d, 0, NULL, NULL }, 422 { "l@", 0x006e, 0, NULL, NULL }, 423 { "w@", 0x006f, 0, NULL, NULL }, 424 { "<w@", 0x0070, 0, NULL, NULL }, 425 { "c@", 0x0071, 0, NULL, NULL }, 426 { "!", 0x0072, 0, NULL, NULL }, 427 { "l!", 0x0073, 0, NULL, NULL }, 428 { "w!", 0x0074, 0, NULL, NULL }, 429 { "c!", 0x0075, 0, NULL, NULL }, 430 { "2@", 0x0076, 0, NULL, NULL }, 431 { "2!", 0x0077, 0, NULL, NULL }, 432 { "move", 0x0078, 0, NULL, NULL }, 433 { "fill", 0x0079, 0, NULL, NULL }, 434 { "comp", 0x007a, 0, NULL, NULL }, 435 { "noop", 0x007b, 0, NULL, NULL }, 436 { "lwsplit", 0x007c, 0, NULL, NULL }, 437 { "wjoin", 0x007d, 0, NULL, NULL }, 438 { "lbsplit", 0x007e, 0, NULL, NULL }, 439 { "bljoin", 0x007f, 0, NULL, NULL }, 440 { "wbflip", 0x0080, 0, NULL, NULL }, 441 { "upc", 0x0081, 0, NULL, NULL }, 442 { "lcc", 0x0082, 0, NULL, NULL }, 443 { "pack", 0x0083, 0, NULL, NULL }, 444 { "count", 0x0084, 0, NULL, NULL }, 445 { "body>", 0x0085, 0, NULL, NULL }, 446 { ">body", 0x0086, 0, NULL, NULL }, 447 { "fcode-revision", 0x0087, 0, NULL, NULL }, 448 { "span", 0x0088, 0, NULL, NULL }, 449 { "unloop", 0x0089, 0, NULL, NULL }, 450 { "expect", 0x008a, 0, NULL, NULL }, 451 { "alloc-mem", 0x008b, 0, NULL, NULL }, 452 { "free-mem", 0x008c, 0, NULL, NULL }, 453 { "key?", 0x008d, 0, NULL, NULL }, 454 { "key", 0x008e, 0, NULL, NULL }, 455 { "emit", 0x008f, 0, NULL, NULL }, 456 { "type", 0x0090, 0, NULL, NULL }, 457 { "(cr", 0x0091, 0, NULL, NULL }, 458 { "cr", 0x0092, 0, NULL, NULL }, 459 { "#out", 0x0093, 0, NULL, NULL }, 460 { "#line", 0x0094, 0, NULL, NULL }, 461 { "hold", 0x0095, 0, NULL, NULL }, 462 { "<#", 0x0096, 0, NULL, NULL }, 463 { "u#>", 0x0097, 0, NULL, NULL }, 464 { "sign", 0x0098, 0, NULL, NULL }, 465 { "u#", 0x0099, 0, NULL, NULL }, 466 { "u#s", 0x009a, 0, NULL, NULL }, 467 { "u.", 0x009b, 0, NULL, NULL }, 468 { "u.r", 0x009c, 0, NULL, NULL }, 469 { ".", 0x009d, 0, NULL, NULL }, 470 { ".r", 0x009e, 0, NULL, NULL }, 471 { ".s", 0x009f, 0, NULL, NULL }, 472 { "base", 0x00a0, 0, NULL, NULL }, 473 { "convert", 0x00a1, 0, NULL, NULL }, 474 { "$number", 0x00a2, 0, NULL, NULL }, 475 { "digit", 0x00a3, 0, NULL, NULL }, 476 { "-1", 0x00a4, 0, NULL, NULL }, 477 { "true", 0x00a4, 0, NULL, NULL }, 478 { "0", 0x00a5, 0, NULL, NULL }, 479 { "1", 0x00a6, 0, NULL, NULL }, 480 { "2", 0x00a7, 0, NULL, NULL }, 481 { "3", 0x00a8, 0, NULL, NULL }, 482 { "bl", 0x00a9, 0, NULL, NULL }, 483 { "bs", 0x00aa, 0, NULL, NULL }, 484 { "bell", 0x00ab, 0, NULL, NULL }, 485 { "bounds", 0x00ac, 0, NULL, NULL }, 486 { "here", 0x00ad, 0, NULL, NULL }, 487 { "aligned", 0x00ae, 0, NULL, NULL }, 488 { "wbsplit", 0x00af, 0, NULL, NULL }, 489 { "bwjoin", 0x00b0, 0, NULL, NULL }, 490 { "b(<mark)", 0x00b1, 0, NULL, NULL }, 491 { "b(>resolve)", 0x00b2, 0, NULL, NULL }, 492 { "set-token-table", 0x00b3, 0, NULL, NULL }, 493 { "set-table", 0x00b4, 0, NULL, NULL }, 494 { "new-token", 0x00b5, 0, NULL, NULL }, 495 { "named-token", 0x00b6, 0, NULL, NULL }, 496 { "b(:)", 0x00b7, 0, NULL, NULL }, 497 { "b(value)", 0x00b8, 0, NULL, NULL }, 498 { "b(variable)", 0x00b9, 0, NULL, NULL }, 499 { "b(constant)", 0x00ba, 0, NULL, NULL }, 500 { "b(create)", 0x00bb, 0, NULL, NULL }, 501 { "b(defer)", 0x00bc, 0, NULL, NULL }, 502 { "b(buffer:)", 0x00bd, 0, NULL, NULL }, 503 { "b(field)", 0x00be, 0, NULL, NULL }, 504 { "b(code)", 0x00bf, 0, NULL, NULL }, 505 { "instance", 0x00c0, 0, NULL, NULL }, 506 { "b(;)", 0x00c2, 0, NULL, NULL }, 507 { "b(to)", 0x00c3, 0, NULL, NULL }, 508 { "b(case)", 0x00c4, 0, NULL, NULL }, 509 { "b(endcase)", 0x00c5, 0, NULL, NULL }, 510 { "b(endof)", 0x00c6, 0, NULL, NULL }, 511 { "#", 0x00c7, 0, NULL, NULL }, 512 { "#s", 0x00c8, 0, NULL, NULL }, 513 { "#>", 0x00c9, 0, NULL, NULL }, 514 { "external-token", 0x00ca, 0, NULL, NULL }, 515 { "$find", 0x00cb, 0, NULL, NULL }, 516 { "offset16", 0x00cc, 0, NULL, NULL }, 517 { "evaluate", 0x00cd, 0, NULL, NULL }, 518 { "c,", 0x00d0, 0, NULL, NULL }, 519 { "w,", 0x00d1, 0, NULL, NULL }, 520 { "l,", 0x00d2, 0, NULL, NULL }, 521 { ",", 0x00d3, 0, NULL, NULL }, 522 { "um*", 0x00d4, 0, NULL, NULL }, 523 { "um/mod", 0x00d5, 0, NULL, NULL }, 524 { "d+", 0x00d8, 0, NULL, NULL }, 525 { "d-", 0x00d9, 0, NULL, NULL }, 526 { "get-token", 0x00da, 0, NULL, NULL }, 527 { "set-token", 0x00db, 0, NULL, NULL }, 528 { "state", 0x00dc, 0, NULL, NULL }, 529 { "compile,", 0x00dd, 0, NULL, NULL }, 530 { "behavior", 0x00de, 0, NULL, NULL }, 531 { "start0", 0x00f0, 0, NULL, NULL }, 532 { "start1", 0x00f1, 0, NULL, NULL }, 533 { "start2", 0x00f2, 0, NULL, NULL }, 534 { "start4", 0x00f3, 0, NULL, NULL }, 535 { "ferror", 0x00fc, 0, NULL, NULL }, 536 { "version1", 0x00fd, 0, NULL, NULL }, 537 { "4-byte-id", 0x00fe, 0, NULL, NULL }, 538 { "end1", 0x00ff, 0, NULL, NULL }, 539 { "dma-alloc", 0x0101, 0, NULL, NULL }, 540 { "my-address", 0x0102, 0, NULL, NULL }, 541 { "my-space", 0x0103, 0, NULL, NULL }, 542 { "memmap", 0x0104, 0, NULL, NULL }, 543 { "free-virtual", 0x0105, 0, NULL, NULL }, 544 { ">physical", 0x0106, 0, NULL, NULL }, 545 { "my-params", 0x010f, 0, NULL, NULL }, 546 { "property", 0x0110, 0, NULL, NULL }, 547 { "encode-int", 0x0111, 0, NULL, NULL }, 548 { "encode+", 0x0112, 0, NULL, NULL }, 549 { "encode-phys", 0x0113, 0, NULL, NULL }, 550 { "encode-string", 0x0114, 0, NULL, NULL }, 551 { "encode-bytes", 0x0115, 0, NULL, NULL }, 552 { "reg", 0x0116, 0, NULL, NULL }, 553 { "intr", 0x0117, 0, NULL, NULL }, 554 { "driver", 0x0118, 0, NULL, NULL }, 555 { "model", 0x0119, 0, NULL, NULL }, 556 { "device-type", 0x011a, 0, NULL, NULL }, 557 { "parse-2int", 0x011b, 0, NULL, NULL }, 558 { "is-install", 0x011c, 0, NULL, NULL }, 559 { "is-remove", 0x011d, 0, NULL, NULL }, 560 { "is-selftest", 0x011e, 0, NULL, NULL }, 561 { "new-device", 0x011f, 0, NULL, NULL }, 562 { "diagnostic-mode?", 0x0120, 0, NULL, NULL }, 563 { "display-status", 0x0121, 0, NULL, NULL }, 564 { "memory-test-suite", 0x0122, 0, NULL, NULL }, 565 { "group-code", 0x0123, 0, NULL, NULL }, 566 { "mask", 0x0124, 0, NULL, NULL }, 567 { "get-msecs", 0x0125, 0, NULL, NULL }, 568 { "ms", 0x0126, 0, NULL, NULL }, 569 { "finish-device", 0x0127, 0, NULL, NULL }, 570 { "decode-phys", 0x0128, 0, NULL, NULL }, 571 { "map-low", 0x0130, 0, NULL, NULL }, 572 { "sbus-intr>cpu", 0x0131, 0, NULL, NULL }, 573 { "#lines", 0x0150, 0, NULL, NULL }, 574 { "#columns", 0x0151, 0, NULL, NULL }, 575 { "line#", 0x0152, 0, NULL, NULL }, 576 { "column#", 0x0153, 0, NULL, NULL }, 577 { "inverse?", 0x0154, 0, NULL, NULL }, 578 { "inverse-screen?", 0x0155, 0, NULL, NULL }, 579 { "frame-buffer-busy?", 0x0156, 0, NULL, NULL }, 580 { "draw-character", 0x0157, 0, NULL, NULL }, 581 { "reset-screen", 0x0158, 0, NULL, NULL }, 582 { "toggle-cursor", 0x0159, 0, NULL, NULL }, 583 { "erase-screen", 0x015a, 0, NULL, NULL }, 584 { "blink-screen", 0x015b, 0, NULL, NULL }, 585 { "invert-screen", 0x015c, 0, NULL, NULL }, 586 { "insert-characters", 0x015d, 0, NULL, NULL }, 587 { "delete-characters", 0x015e, 0, NULL, NULL }, 588 { "insert-lines", 0x015f, 0, NULL, NULL }, 589 { "delete-lines", 0x0160, 0, NULL, NULL }, 590 { "draw-logo", 0x0161, 0, NULL, NULL }, 591 { "frame-buffer-addr", 0x0162, 0, NULL, NULL }, 592 { "screen-height", 0x0163, 0, NULL, NULL }, 593 { "screen-width", 0x0164, 0, NULL, NULL }, 594 { "window-top", 0x0165, 0, NULL, NULL }, 595 { "window-left", 0x0166, 0, NULL, NULL }, 596 { "default-font", 0x016a, 0, NULL, NULL }, 597 { "set-font", 0x016b, 0, NULL, NULL }, 598 { "char-height", 0x016c, 0, NULL, NULL }, 599 { "char-width", 0x016d, 0, NULL, NULL }, 600 { ">font", 0x016e, 0, NULL, NULL }, 601 { "fontbytes", 0x016f, 0, NULL, NULL }, 602 { "fb8-draw-character", 0x0180, 0, NULL, NULL }, 603 { "fb8-reset-screen", 0x0181, 0, NULL, NULL }, 604 { "fb8-toggle-cursor", 0x0182, 0, NULL, NULL }, 605 { "fb8-erase-screen", 0x0183, 0, NULL, NULL }, 606 { "fb8-blink-screen", 0x0184, 0, NULL, NULL }, 607 { "fb8-invert-screen", 0x0185, 0, NULL, NULL }, 608 { "fb8-insert-characters", 0x0186, 0, NULL, NULL }, 609 { "fb8-delete-characters", 0x0187, 0, NULL, NULL }, 610 { "fb8-inisert-lines", 0x0188, 0, NULL, NULL }, 611 { "fb8-delete-lines", 0x0189, 0, NULL, NULL }, 612 { "fb8-draw-logo", 0x018a, 0, NULL, NULL }, 613 { "fb8-install", 0x018b, 0, NULL, NULL }, 614 { "return-buffer", 0x01a0, 0, NULL, NULL }, 615 { "xmit-packet", 0x01a1, 0, NULL, NULL }, 616 { "poll-packet", 0x01a2, 0, NULL, NULL }, 617 { "mac-address", 0x01a4, 0, NULL, NULL }, 618 { "device-name", 0x0201, 0, NULL, NULL }, 619 { "my-args", 0x0202, 0, NULL, NULL }, 620 { "my-self", 0x0203, 0, NULL, NULL }, 621 { "find-package", 0x0204, 0, NULL, NULL }, 622 { "open-package", 0x0205, 0, NULL, NULL }, 623 { "close-package", 0x0206, 0, NULL, NULL }, 624 { "find-method", 0x0207, 0, NULL, NULL }, 625 { "call-package", 0x0208, 0, NULL, NULL }, 626 { "$call-parent", 0x0209, 0, NULL, NULL }, 627 { "my-parent", 0x020a, 0, NULL, NULL }, 628 { "ihandle>phandle", 0x020b, 0, NULL, NULL }, 629 { "my-unit", 0x020d, 0, NULL, NULL }, 630 { "$call-method", 0x020e, 0, NULL, NULL }, 631 { "$open-package", 0x020f, 0, NULL, NULL }, 632 { "processor-type", 0x0210, 0, NULL, NULL }, 633 { "firmware-version", 0x0211, 0, NULL, NULL }, 634 { "fcode-version", 0x0212, 0, NULL, NULL }, 635 { "alarm", 0x0213, 0, NULL, NULL }, 636 { "(is-user-word)", 0x0214, 0, NULL, NULL }, 637 { "suspend-fcode", 0x0215, 0, NULL, NULL }, 638 { "abort", 0x0216, 0, NULL, NULL }, 639 { "catch", 0x0217, 0, NULL, NULL }, 640 { "throw", 0x0218, 0, NULL, NULL }, 641 { "user-abort", 0x0219, 0, NULL, NULL }, 642 { "get-my-property", 0x021a, 0, NULL, NULL }, 643 { "decode-int", 0x021b, 0, NULL, NULL }, 644 { "decode-string", 0x021c, 0, NULL, NULL }, 645 { "get-inherited-property", 0x021d, 0, NULL, NULL }, 646 { "delete-property", 0x021e, 0, NULL, NULL }, 647 { "get-package-property", 0x021f, 0, NULL, NULL }, 648 { "cpeek", 0x0220, 0, NULL, NULL }, 649 { "wpeek", 0x0221, 0, NULL, NULL }, 650 { "lpeek", 0x0222, 0, NULL, NULL }, 651 { "cpoke", 0x0223, 0, NULL, NULL }, 652 { "wpoke", 0x0224, 0, NULL, NULL }, 653 { "lpoke", 0x0225, 0, NULL, NULL }, 654 { "lwflip", 0x0226, 0, NULL, NULL }, 655 { "lbflip", 0x0227, 0, NULL, NULL }, 656 { "lbflips", 0x0228, 0, NULL, NULL }, 657 { "adr-mask", 0x0229, 0, NULL, NULL }, 658 { "rb@", 0x0230, 0, NULL, NULL }, 659 { "rb!", 0x0231, 0, NULL, NULL }, 660 { "rw@", 0x0232, 0, NULL, NULL }, 661 { "rw!", 0x0233, 0, NULL, NULL }, 662 { "rl@", 0x0234, 0, NULL, NULL }, 663 { "rl!", 0x0235, 0, NULL, NULL }, 664 { "wbflips", 0x0236, 0, NULL, NULL }, 665 { "lwflips", 0x0237, 0, NULL, NULL }, 666 { "probe", 0x0238, 0, NULL, NULL }, 667 { "probe-virtual", 0x0239, 0, NULL, NULL }, 668 { "child", 0x023b, 0, NULL, NULL }, 669 { "peer", 0x023c, 0, NULL, NULL }, 670 { "next-property", 0x023d, 0, NULL, NULL }, 671 { "byte-load", 0x023e, 0, NULL, NULL }, 672 { "set-args", 0x023f, 0, NULL, NULL }, 673 { "left-parse-string", 0x0240, 0, NULL, NULL }, 674 /* 64-bit FCode extensions */ 675 { "bxjoin", 0x0241, 0, NULL, NULL }, 676 { "<l@", 0x0242, 0, NULL, NULL }, 677 { "lxjoin", 0x0243, 0, NULL, NULL }, 678 { "rx@", 0x022e, 0, NULL, NULL }, 679 { "rx!", 0x022f, 0, NULL, NULL }, 680 { "wxjoin", 0x0244, 0, NULL, NULL }, 681 { "x,", 0x0245, 0, NULL, NULL }, 682 { "x@", 0x0246, 0, NULL, NULL }, 683 { "x!", 0x0247, 0, NULL, NULL }, 684 { "/x", 0x0248, 0, NULL, NULL }, 685 { "/x*", 0x0249, 0, NULL, NULL }, 686 { "xa+", 0x024a, 0, NULL, NULL }, 687 { "xa1+", 0x024b, 0, NULL, NULL }, 688 { "xbflip", 0x024c, 0, NULL, NULL }, 689 { "xbflips", 0x024d, 0, NULL, NULL }, 690 { "xbsplit", 0x024e, 0, NULL, NULL }, 691 { "xlflip", 0x024f, 0, NULL, NULL }, 692 { "xlflips", 0x0250, 0, NULL, NULL }, 693 { "xlsplit", 0x0251, 0, NULL, NULL }, 694 { "xwflip", 0x0252, 0, NULL, NULL }, 695 { "xwflips", 0x0253, 0, NULL, NULL }, 696 { "xwsplit", 0x0254, 0, NULL, NULL }, 697 { NULL, 0, 0, NULL, NULL } 698 }; 699 700 /* 701 * Default macros -- can be overridden by colon definitions. 702 */ 703 static struct macro macros[] = { 704 { "eval", "evaluate", 0, NULL, NULL }, /* Build a more balanced tree */ 705 { "(.)", "dup abs <# u#s swap sign u#>", 0, NULL, NULL }, 706 { "<<", "lshift", 0, NULL, NULL }, 707 { ">>", "rshift", 0, NULL, NULL }, 708 { "?", "@ .", 0, NULL, NULL }, 709 { "1+", "1 +", 0, NULL, NULL }, 710 { "1-", "1 -", 0, NULL, NULL }, 711 { "2+", "2 +", 0, NULL, NULL }, 712 { "2-", "2 -", 0, NULL, NULL }, 713 { "abort\"", "-2 throw", 0, NULL, NULL }, 714 { "accept", "span @ -rot expect span @ swap span !", 0, NULL, NULL }, 715 { "allot", "0 max 0 ?do 0 c, loop", 0, NULL, NULL }, 716 { "blank", "bl fill", 0, NULL, NULL }, 717 { "/c*", "chars", 0, NULL, NULL }, 718 { "ca1+", "char+", 0, NULL, NULL }, 719 { "carret", "b(lit) 00 00 00 h# 0d", 0, NULL, NULL }, 720 { ".d", "base @ swap d# 0a base ! . base !", 0, NULL, NULL }, 721 { "decode-bytes", ">r over r@ + swap r@ - rot r>", 0, NULL, NULL }, 722 { "3drop", "drop 2drop", 0, NULL, NULL }, 723 { "3dup", "2 pick 2 pick 2 pick", 0, NULL, NULL }, 724 { "erase", "0 fill", 0, NULL, NULL }, 725 { "false", "0", 0, NULL, NULL }, 726 { ".h", "base @ swap d# 10 base ! . base !", 0, NULL, NULL }, 727 { "linefeed", "b(lit) 00 00 00 d# 0a", 0, NULL, NULL }, 728 { "/n*", "cells", 0, NULL, NULL }, 729 { "na1+", "cell+", 0, NULL, NULL }, 730 { "not", "invert", 0, NULL, NULL }, 731 { "s.", "(.) type space", 0, NULL, NULL }, 732 { "space", "bl emit", 0, NULL, NULL }, 733 { "spaces", "0 max 0 ?do space loop", 0, NULL, NULL }, 734 { "struct", "0", 0, NULL, NULL }, 735 { "true", "-1", 0, NULL, NULL }, 736 { "(u,)", "<# u#s u#>", 0, NULL, NULL }, 737 { NULL, NULL, 0, NULL, NULL } 738 }; 739 740 /* 741 * Utility functions. 742 */ 743 744 /* 745 * ASCII -> long int converter, eats `.'s 746 */ 747 #define strtol(x, y, z) cvt(x, y, z) 748 static Cell 749 cvt(const char *s, char **e, int base) 750 { 751 Cell v = 0; 752 int c, n = 0; 753 754 c = *s; 755 if (c == '-') { n = 1; s++; } 756 757 for (c = *s; (c = *s); s++) { 758 759 /* Ignore `.' */ 760 if (c == '.') 761 continue; 762 if (c >= '0' && c <= '9') 763 c -= '0'; 764 else if (c >= 'a' && c <= 'f') 765 c += 10 - 'a'; 766 else if (c >= 'A' && c <= 'F') 767 c += 10 - 'A'; 768 if (c >= base) 769 break; 770 v *= base; 771 v += c; 772 } 773 if (e) 774 *e = __UNCONST(s); 775 if (n) 776 return (-v); 777 return (v); 778 } 779 780 /* 781 * Parser stack control functions. 782 */ 783 784 static void 785 push(Cell val) 786 { 787 if (debug > 1) 788 printf("push %lx\n", (long)val); 789 parse_stack[parse_stack_ptr++] = val; 790 if (parse_stack_ptr >= PSTKSIZ) 791 errx(EXIT_FAILURE, "Parse stack overflow"); 792 } 793 794 static Cell 795 pop(void) 796 { 797 ASSERT(parse_stack_ptr); 798 if (debug > 1) 799 printf("pop %lx\n", (long)parse_stack[parse_stack_ptr-1]); 800 return parse_stack[--parse_stack_ptr]; 801 } 802 803 static int 804 depth(void) 805 { 806 return (parse_stack_ptr); 807 } 808 809 /* 810 * Insert fcode into dictionary. 811 */ 812 static int 813 fadd(struct fcode *dict, struct fcode *new) 814 { 815 int res = strcmp(dict->name, new->name); 816 817 new->type = FCODE; 818 ASSERT(dict->type == FCODE); 819 if (!res) { 820 /* 821 * Duplicate entry. Give the old name the new FCode 822 * number. 823 */ 824 dict->num = new->num; 825 return (0); 826 } 827 if (res < 0) { 828 if (dict->l) 829 return fadd(dict->l, new); 830 else { 831 if (debug > 5) 832 printf("fadd: new FCode `%s' is %lx\n", 833 new->name, new->num); 834 new->l = new->r = NULL; 835 dict->l = new; 836 } 837 } else { 838 if (dict->r) 839 return fadd(dict->r, new); 840 else { 841 if (debug > 5) 842 printf("fadd: new FCode `%s' is %lx\n", 843 new->name, new->num); 844 new->l = new->r = NULL; 845 dict->r = new; 846 } 847 } 848 return (1); 849 } 850 851 /* 852 * Look for a code in the dictionary. 853 */ 854 static struct fcode * 855 flookup(struct fcode *dict, const char *str) 856 { 857 int res; 858 if (!dict) return (dict); 859 860 res = strcmp(dict->name, str); 861 ASSERT(dict->type == FCODE); 862 if (debug > 5) 863 printf("flookup: `%s' and `%s' %s match\n", 864 str, dict->name, res?"don't":"do"); 865 if (!res) return (dict); 866 if (res < 0) 867 return (flookup(dict->l, str)); 868 else 869 return (flookup(dict->r, str)); 870 871 } 872 873 /* 874 * Insert alias into macros. 875 */ 876 static int 877 aadd(struct macro *dict, struct macro *new) 878 { 879 int res = strcmp(dict->name, new->name); 880 881 new->type = MACRO; 882 ASSERT(dict->type == MACRO); 883 if (!res) { 884 /* Duplicate name. Replace the old macro */ 885 dict->equiv = new->equiv; 886 /* We can't free the old equiv since it may be static data. */ 887 return (0); 888 } 889 if (res < 0) { 890 if (dict->l) 891 return aadd(dict->l, new); 892 else { 893 new->l = new->r = NULL; 894 dict->l = new; 895 if (debug > 5) 896 printf("aadd: new alias `%s' to `%s'\n", 897 new->name, new->equiv); 898 } 899 } else { 900 if (dict->r) 901 return aadd(dict->r, new); 902 else { 903 new->l = new->r = NULL; 904 dict->r = new; 905 if (debug > 5) 906 printf("aadd: new alias `%s' to `%s'\n", 907 new->name, new->equiv); 908 } 909 } 910 return (1); 911 } 912 913 /* 914 * Look for a macro in the aliases. 915 */ 916 static struct macro * 917 alookup(struct macro *dict, const char *str) 918 { 919 int res; 920 if (!dict) return (dict); 921 922 ASSERT(dict->type == MACRO); 923 res = strcmp(dict->name, str); 924 if (!res) return (dict); 925 if (res < 0) 926 return (alookup(dict->l, str)); 927 else 928 return (alookup(dict->r, str)); 929 930 } 931 932 /* 933 * Bootstrap the dictionary and then install 934 * all the standard FCodes. 935 */ 936 static void 937 initdic(void) 938 { 939 struct fcode *code = fcodes; 940 struct macro *alias = macros; 941 942 ASSERT(dictionary == NULL); 943 code->l = code->r = NULL; 944 dictionary = code; 945 code->type = FCODE; 946 947 while ((++code)->name) { 948 if(!fadd(dictionary, code)) { 949 warnx("%s: duplicate dictionary entry `%s'", __func__, 950 code->name); 951 } 952 } 953 954 ASSERT(aliases == NULL); 955 aliases = alias; 956 alias->l = alias->r = NULL; 957 alias->type = MACRO; 958 while ((++alias)->name) { 959 if(!aadd(aliases, alias)) { 960 warnx("%s: duplicate macro entry `%s'", __func__, 961 alias->name); 962 } 963 } 964 965 } 966 967 static int 968 apply_macros(YY_BUFFER_STATE yinput, const char *str) 969 { 970 struct macro *xform = alookup(aliases, str); 971 972 if (xform) { 973 YY_BUFFER_STATE newbuf; 974 975 if (debug > 1) 976 printf("Expanding %s to %s\n", str, xform->equiv); 977 978 newbuf = yy_scan_string(xform->equiv); 979 yy_switch_to_buffer(newbuf); 980 tokenize(newbuf); 981 yy_switch_to_buffer(yinput); 982 yy_delete_buffer(newbuf); 983 } 984 return (xform != NULL); 985 } 986 987 static void 988 usage(void) 989 { 990 (void)fprintf(stderr, "usage: %s [-d level] [-o outfile] infile\n", 991 getprogname()); 992 exit(EXIT_FAILURE); 993 } 994 995 int 996 main(int argc, char *argv[]) 997 { 998 int ch; 999 FILE *inf; 1000 struct fcode_header *fheader; 1001 YY_BUFFER_STATE inbuf; 1002 const char *hdrtype = "version1"; 1003 int i; 1004 1005 outf = 1; /* stdout */ 1006 1007 while ((ch = getopt(argc, argv, "d:o:")) != -1) 1008 switch(ch) { 1009 case 'd': 1010 mark_fload = 1; 1011 debug = atol(optarg); 1012 break; 1013 case 'o': 1014 outfile = optarg; 1015 break; 1016 default: 1017 usage(); 1018 } 1019 argc -= optind; 1020 argv += optind; 1021 1022 if (argc != 1) 1023 usage(); 1024 1025 infile = argv[0]; 1026 1027 /* 1028 * Initialization stuff. 1029 */ 1030 initdic(); 1031 outbufsiz = BUFCLICK; 1032 fheader = emalloc(outbufsiz); 1033 outbuf = (void *)fheader; 1034 outpos = 0; 1035 emit(hdrtype); 1036 outpos = sizeof(*fheader); 1037 1038 /* 1039 * Do it. 1040 */ 1041 if ((inf = fopen(infile, "r")) == NULL) 1042 err(EXIT_FAILURE, "Cannot open `%s'", infile); 1043 1044 inbuf = yy_create_buffer(inf, YY_BUF_SIZE); 1045 yy_switch_to_buffer(inbuf); 1046 tokenize(inbuf); 1047 yy_delete_buffer(inbuf); 1048 fclose(inf); 1049 if (need_end0) emit("end0"); 1050 1051 /* Now calculate length and checksum and stick them in the header */ 1052 fheader->format = 0x08; 1053 fheader->length = htonl(outpos); 1054 fheader->checksum = 0; 1055 for (i = sizeof(*fheader); i<outpos; i++) 1056 fheader->checksum += (unsigned char)outbuf[i]; 1057 fheader->checksum = htons(fheader->checksum); 1058 1059 if ((outf = open(outfile, O_WRONLY|O_CREAT|O_TRUNC, 0666)) == -1) 1060 err(EXIT_FAILURE, "Cannot open `%s'", outfile); 1061 1062 if (write(outf, outbuf, outpos) != outpos) { 1063 int serrno = errno; 1064 close(outf); 1065 unlink(outfile); 1066 errc(EXIT_FAILURE, serrno, "write error"); 1067 } 1068 close(outf); 1069 return EXIT_SUCCESS; 1070 }; 1071 1072 /* 1073 * Tokenize one file. This is a separate function so it can 1074 * be called recursively to parse multiple levels of include files. 1075 */ 1076 1077 static void 1078 tokenize(YY_BUFFER_STATE yinput) 1079 { 1080 FILE *inf; 1081 YY_BUFFER_STATE inbuf; 1082 TOKEN *token; 1083 const char *last_token = ""; 1084 struct fcode *fcode; 1085 int pos, off; 1086 1087 while ((token = yylex()) != NULL) { 1088 switch (token->type) { 1089 case TOK_NUMBER: 1090 STATE(token->text, "TOK_NUMBER"); 1091 { 1092 char *end; 1093 Cell value; 1094 1095 if (tokenizer) { 1096 push(strtol(token->text, &end, 16)); 1097 break; 1098 } 1099 value = strtol(token->text, &end, numbase); 1100 if (*end != 0) 1101 token_err(yylineno, infile, yytext, 1102 "illegal number conversion"); 1103 1104 /* 1105 * If this is a 64-bit value we need to store two literals 1106 * and issue a `lxjoin' to combine them. But that's a future 1107 * project. 1108 */ 1109 emit("b(lit)"); 1110 spit((value>>24)&0x0ff); 1111 spit((value>>16)&0x0ff); 1112 spit((value>>8)&0x0ff); 1113 spit(value&0x0ff); 1114 if ((value>>32) != value && (value>>32) != 0 && 1115 (value>>32) != -1) { 1116 emit("b(lit)"); 1117 spit((value>>56)&0x0ff); 1118 spit((value>>48)&0x0ff); 1119 spit((value>>40)&0x0ff); 1120 spit((value>>32)&0x0ff); 1121 emit("lxjoin"); 1122 } 1123 } 1124 break; 1125 case TOK_C_LIT: 1126 STATE(token->text, "TOK_C_LIT"); 1127 emit("b(lit)"); 1128 spit(0); 1129 spit(0); 1130 spit(0); 1131 spit(token->text[1]); 1132 break; 1133 case TOK_STRING_LIT: 1134 STATE(token->text, "TOK_STRING_LIT:"); 1135 { 1136 size_t len; 1137 char *p = token->text; 1138 1139 ++p; /* Skip the quote */ 1140 len = strlen(++p); /* Skip the 1st space */ 1141 1142 #define ERR_TOOLONG \ 1143 token_err(yylineno, infile, yytext, "string length %zu too long", len) 1144 1145 if (len > 255) 1146 ERR_TOOLONG; 1147 1148 if (p[len-1] == ')' || 1149 p[len-1] == '"') { 1150 p[len-1] = 0; 1151 } 1152 emit("b(\")"); 1153 sspit(p); 1154 } 1155 break; 1156 case TOK_PSTRING: 1157 STATE(token->text, "TOK_PSTRING:"); 1158 { 1159 size_t len; 1160 char *p = token->text; 1161 1162 if (*p++ == '.') p++; /* Skip over delimiter */ 1163 p++; /* Skip over space/tab */ 1164 1165 len = strlen(p); 1166 if (len > 255) 1167 ERR_TOOLONG; 1168 1169 if (p[len-1] == ')' || 1170 p[len-1] == '"') { 1171 p[len-1] = 0; 1172 } 1173 emit("b(\")"); 1174 sspit(p); 1175 emit("type"); 1176 } 1177 break; 1178 case TOK_ABORT_S: 1179 STATE(token->text, "TOK_PSTRING:"); 1180 { 1181 size_t len; 1182 Cell value = -2; 1183 char *p = token->text; 1184 1185 while (*p++ != ' '); /* Skip to the string */ 1186 1187 len = strlen(p); 1188 if (len > 255) 1189 ERR_TOOLONG; 1190 1191 if (p[len-1] == '"') { 1192 p[len-1] = 0; 1193 } 1194 emit("b?branch"); 1195 push(outpos); 1196 offspit(0); 1197 emit("b(\")"); 1198 sspit(p); 1199 emit("type"); 1200 emit("cr"); 1201 emit("b(lit)"); 1202 spit((value>>24)&0x0ff); 1203 spit((value>>16)&0x0ff); 1204 spit((value>>8)&0x0ff); 1205 spit(value&0x0ff); 1206 emit("throw"); 1207 emit("b(>resolve)"); 1208 pos = outpos; 1209 outpos = pop(); 1210 off = pos - outpos; 1211 offspit(off); 1212 outpos = pos; 1213 } 1214 break; 1215 1216 case TOK_TOKENIZE: 1217 STATE(token->text, "TOK_TOKENIZE"); 1218 /* The next pass should tokenize the FCODE number */ 1219 emit("b(')"); 1220 break; 1221 case TOK_COMMENT: 1222 STATE(token->text, "TOK_COMMENT:"); 1223 do { 1224 off = input(); 1225 } while ((off != ')') && (off != '\n') && 1226 (off != EOF)); 1227 break; 1228 case TOK_COLON: 1229 STATE(token->text, "TOK_COLON:"); 1230 1231 token = yylex(); 1232 if (token == NULL) 1233 token_err(yylineno, infile, yytext, 1234 "EOF in colon definition"); 1235 1236 /* Add new code to dictionary */ 1237 fcode = emalloc(sizeof(*fcode)); 1238 fcode->num = nextfcode++; 1239 fcode->name = estrdup(token->text); 1240 if (!fadd(dictionary, fcode)) { 1241 /* Duplicate definition. Free the memory. */ 1242 if (debug) 1243 printf("%s: duplicate FCode\n", 1244 token->text); 1245 free(__UNCONST(fcode->name)); 1246 free(fcode); 1247 } 1248 if (debug) 1249 printf("Adding %s to dictionary\n", token->text); 1250 if (state == 0) 1251 emit("new-token"); 1252 else { 1253 if (state == TOK_EXTERNAL) 1254 emit("external-token"); 1255 else 1256 /* Here we have a choice of new-token or named-token */ 1257 emit("named-token"); 1258 sspit(token->text); 1259 } 1260 spit(fcode->num); 1261 emit("b(:)"); 1262 last_token = fcode->name; 1263 defining = 1; 1264 break; 1265 case TOK_SEMICOLON: 1266 STATE(token->text, "TOK_SEMICOLON:"); 1267 emit("b(;)"); 1268 defining = 0; 1269 if (depth()) { 1270 token_err(yylineno, infile, NULL, 1271 "Warning: stack depth %d at end of %s\n", 1272 depth(), last_token); 1273 } 1274 last_token = ""; 1275 break; 1276 1277 /* These are special */ 1278 case TOK_AGAIN: 1279 STATE(token->text, "TOK_AGAIN"); 1280 emit("bbranch"); 1281 pos = pop(); 1282 pos = pos - outpos; 1283 offspit(pos); 1284 break; 1285 case TOK_ALIAS: 1286 STATE(token->text, "TOK_ALIAS"); 1287 { 1288 struct macro *alias; 1289 1290 token = yylex(); 1291 if (token == NULL) { 1292 warnx("EOF in alias definition"); 1293 return; 1294 } 1295 if (token->type != TOK_OTHER) { 1296 warnx("ENDCOMMENT aliasing weird token type %d", 1297 token->type); 1298 } 1299 alias = emalloc(sizeof(*alias)); 1300 alias->name = estrdup(token->text); 1301 token = yylex(); 1302 if (token == NULL) { 1303 warnx("EOF in alias definition"); 1304 free(__UNCONST(alias->name)); 1305 free(alias); 1306 return; 1307 } 1308 alias->equiv = estrdup(token->text); 1309 if (!aadd(aliases, alias)) { 1310 free(__UNCONST(alias->name)); 1311 free(alias); 1312 } 1313 } 1314 break; 1315 case TOK_GETTOKEN: 1316 STATE(token->text, "TOK_GETTOKEN"); 1317 /* This is caused by ['] */ 1318 emit("b(')"); 1319 token = yylex(); 1320 if (token == NULL) { 1321 warnx("EOF in [']"); 1322 return; 1323 } 1324 if ((fcode = flookup(dictionary, token->text)) == NULL) 1325 errx(EXIT_FAILURE, "[']: %s not found", 1326 token->text); 1327 spit(fcode->num); 1328 break; 1329 case TOK_ASCII: 1330 STATE(token->text, "TOK_ASCII"); 1331 token = yylex(); 1332 if (token == NULL) 1333 errx(EXIT_FAILURE, "EOF after \"ascii\""); 1334 emit("b(lit)"); 1335 spit(0); 1336 spit(0); 1337 spit(0); 1338 spit(token->text[0]); 1339 break; 1340 case TOK_BEGIN: 1341 STATE(token->text, "TOK_BEGIN"); 1342 emit("b(<mark)"); 1343 push(outpos); 1344 break; 1345 case TOK_BUFFER: 1346 STATE(token->text, "TOK_BUFFER"); 1347 1348 token = yylex(); 1349 if (token == NULL) { 1350 warnx("EOF in colon definition"); 1351 return; 1352 } 1353 1354 /* Add new code to dictionary */ 1355 fcode = emalloc(sizeof(*fcode)); 1356 fcode->num = nextfcode++; 1357 fcode->name = estrdup(token->text); 1358 fadd(dictionary, fcode); 1359 1360 if (state == 0) 1361 emit("new-token"); 1362 else { 1363 if (state == TOK_EXTERNAL) 1364 emit("external-token"); 1365 else 1366 /* Here we have a choice of new-token or named-token */ 1367 emit("named-token"); 1368 sspit(token->text); 1369 } 1370 spit(fcode->num); 1371 emit("b(buffer:)"); 1372 break; 1373 case TOK_CASE: 1374 STATE(token->text, "TOK_CASE"); 1375 emit("b(case)"); 1376 push(0); 1377 break; 1378 case TOK_CONSTANT: 1379 STATE(token->text, "TOK_CONSTANT"); 1380 1381 token = yylex(); 1382 if (token == NULL) { 1383 warnx("EOF in constant definition"); 1384 return; 1385 } 1386 1387 /* Add new code to dictionary */ 1388 fcode = emalloc(sizeof(*fcode)); 1389 fcode->num = nextfcode++; 1390 fcode->name = estrdup(token->text); 1391 fadd(dictionary, fcode); 1392 1393 if (state == 0) 1394 emit("new-token"); 1395 else { 1396 if (state == TOK_EXTERNAL) 1397 emit("external-token"); 1398 else 1399 /* Here we have a choice of new-token or named-token */ 1400 emit("named-token"); 1401 sspit(token->text); 1402 } 1403 spit(fcode->num); 1404 emit("b(constant)"); 1405 break; 1406 case TOK_CONTROL: 1407 STATE(token->text, "TOK_CONTROL"); 1408 token = yylex(); 1409 if (token == NULL) 1410 errx(EXIT_FAILURE, "EOF after \"ascii\""); 1411 emit("b(lit)"); 1412 spit(0); 1413 spit(0); 1414 spit(0); 1415 spit(token->text[0]&0x1f); 1416 break; 1417 case TOK_CREATE: 1418 STATE(token->text, "TOK_CREATE"); 1419 /* Don't know what this does or if it's right */ 1420 token = yylex(); 1421 if (token == NULL) { 1422 warnx("EOF in create definition"); 1423 return; 1424 } 1425 1426 /* Add new code to dictionary */ 1427 fcode = emalloc(sizeof(*fcode)); 1428 fcode->num = nextfcode++; 1429 fcode->name = estrdup(token->text); 1430 fadd(dictionary, fcode); 1431 1432 if (state == 0) 1433 emit("new-token"); 1434 else { 1435 if (state == TOK_EXTERNAL) 1436 emit("external-token"); 1437 else 1438 /* Here we have a choice of new-token or named-token */ 1439 emit("named-token"); 1440 sspit(token->text); 1441 } 1442 spit(fcode->num); 1443 emit("b(create)"); 1444 break; 1445 case TOK_DECIMAL: 1446 STATE(token->text, "TOK_DECIMAL"); 1447 if (token->text[1] != '#') { 1448 if (defining) { 1449 emit("b(lit)"); 1450 spit(0); 1451 spit(0); 1452 spit(0); 1453 spit(10); 1454 emit("base"); 1455 emit("!"); 1456 } else 1457 numbase = TOK_DECIMAL; 1458 } else { 1459 char *end; 1460 Cell value; 1461 1462 token = yylex(); 1463 if (token == NULL) { 1464 warnx("EOF after d#"); 1465 return; 1466 } 1467 if (token->type == TOK_OTHER) { 1468 if (strcmp("-1", token->text) == 0) { 1469 emit(token->text); 1470 break; 1471 } 1472 } 1473 value = strtol(token->text, &end, 10); 1474 if (*end != 0) 1475 token_err(yylineno, infile, NULL, 1476 "Illegal number conversion: %s", token->text); 1477 1478 /* 1479 * If this is a 64-bit value we need to store two literals 1480 * and issue a `lxjoin' to combine them. But that's a future 1481 * project. 1482 */ 1483 emit("b(lit)"); 1484 spit((value>>24)&0x0ff); 1485 spit((value>>16)&0x0ff); 1486 spit((value>>8)&0x0ff); 1487 spit(value&0x0ff); 1488 if ((value>>32) != value && (value>>32) != 0) { 1489 emit("b(lit)"); 1490 spit((value>>56)&0x0ff); 1491 spit((value>>48)&0x0ff); 1492 spit((value>>40)&0x0ff); 1493 spit((value>>32)&0x0ff); 1494 emit("lxjoin"); 1495 } 1496 } 1497 break; 1498 case TOK_DEFER: 1499 STATE(token->text, "TOK_DEFER"); 1500 /* Don't know what this does or if it's right */ 1501 token = yylex(); 1502 if (token == NULL) { 1503 warnx("EOF in colon definition"); 1504 return; 1505 } 1506 1507 /* Add new code to dictionary */ 1508 fcode = emalloc(sizeof(*fcode)); 1509 fcode->num = nextfcode++; 1510 fcode->name = estrdup(token->text); 1511 fadd(dictionary, fcode); 1512 1513 if (state == 0) 1514 emit("new-token"); 1515 else { 1516 if (state == TOK_EXTERNAL) 1517 emit("external-token"); 1518 else 1519 /* Here we have a choice of new-token or named-token */ 1520 emit("named-token"); 1521 sspit(token->text); 1522 } 1523 spit(fcode->num); 1524 emit("b(defer)"); 1525 break; 1526 case TOK_DO: 1527 STATE(token->text, "TOK_DO"); 1528 /* 1529 * From the 1275 spec. B is branch location, T is branch target. 1530 * 1531 * b(do) offset1 ... b(loop) offset2 ... 1532 * b(do) offset1 ... b(+loop) offset2 ... 1533 * b(?do) offset1 ... b(loop) offset2 ... 1534 * b(?do) offset1 ... b(+loop) offset2 ... 1535 * ^ ^ 1536 * B1 ^ ^ T1 1537 * T2 B2 1538 * 1539 * How we do this is we generate the b(do) or b(?do), spit out a 1540 * zero offset while remembering b1 and t2. Then we call tokenize() 1541 * to generate the body. When tokenize() finds a b(loop) or b(+loop), 1542 * it generates the FCode and returns, with outpos at b2. We then 1543 * calculate the offsets, put them in the right slots and finishup. 1544 */ 1545 1546 if (token->text[0] == '?') 1547 emit("b(?do)"); 1548 else 1549 emit("b(do)"); 1550 push(outpos); 1551 offspit(0); /* Place holder for later */ 1552 push(outpos); 1553 break; 1554 case TOK_END0: 1555 STATE(token->text, "TOK_END0"); 1556 emit("end0"); 1557 /* Remember we already generated end0 */ 1558 need_end0 = 0; 1559 break; 1560 case TOK_ELSE: 1561 STATE(token->text, "TOK_ELSE"); 1562 /* Get where we need to patch */ 1563 off = pop(); 1564 emit("bbranch"); 1565 /* Save where we are now. */ 1566 push(outpos); 1567 offspit(0); /* Place holder for later */ 1568 emit("b(>resolve)"); 1569 /* Rewind and patch the if branch */ 1570 pos = outpos; 1571 outpos = off; 1572 off = pos - off; 1573 offspit(off); /* Place holder for later */ 1574 /* revert to the end */ 1575 outpos = pos; 1576 break; 1577 case TOK_ENDCASE: 1578 STATE(token->text, "TOK_ENDCASE:"); 1579 emit("b(endcase)"); 1580 pos = outpos; /* Remember where we need to branch to */ 1581 1582 /* Thread our way backwards and install proper offsets */ 1583 off = pop(); 1584 while (off) { 1585 int disp; 1586 int next; 1587 1588 /* Move to this offset */ 1589 outpos = off; 1590 /* Load next offset to process */ 1591 disp = (signed char)(outbuf[outpos]); 1592 if (offsetsize == 16) { 1593 disp = (disp << 8) | 1594 (unsigned char)outbuf[outpos+1]; 1595 } 1596 next = outpos + disp; 1597 if (debug > -3) 1598 printf("Next endof: %x at %x\n", 1599 disp, next); 1600 1601 /* process this offset */ 1602 off = pos - outpos; 1603 offspit(off); 1604 if ((off = disp)) 1605 off = next; 1606 } 1607 outpos = pos; 1608 break; 1609 case TOK_ENDOF: 1610 STATE(token->text, "TOK_ENDOF"); 1611 off = pop(); 1612 emit("b(endof)"); 1613 /* 1614 * Save back pointer in the offset field so we can traverse 1615 * the linked list and patch it in the endcase. 1616 */ 1617 pos = pop(); /* get position of prev link. */ 1618 push(outpos); /* save position of this link. */ 1619 if (pos) 1620 /* save potision of prev link. */ 1621 offspit(pos - outpos); 1622 else 1623 /* This is the first statement */ 1624 offspit(0); 1625 pos = outpos; 1626 /* Now point the offset from b(of) here. */ 1627 outpos = off; 1628 off = pos - off; 1629 offspit(off); 1630 /* Restore position */ 1631 outpos = pos; 1632 break; 1633 case TOK_EXTERNAL: 1634 STATE(token->text, "TOK_EXTERNAL"); 1635 state = TOK_EXTERNAL; 1636 break; 1637 case TOK_FCODE_VERSION2: 1638 /* This is actually a tokenizer directive. */ 1639 STATE(token->text, "TOK_FCODE_VERSION2"); 1640 offsetsize = 16; 1641 pos = outpos; 1642 outpos = 0; 1643 emit("start1"); 1644 outpos = pos; 1645 break; 1646 case TOK_FCODE_END: 1647 /* 1648 * Another tokenizer directive. 1649 * 1650 * This should generate end0 and finish filling in 1651 * the FCode header. But that's all done in main(). 1652 */ 1653 STATE(token->text, "TOK_FCODE_END"); 1654 return; 1655 case TOK_FIELD: 1656 STATE(token->text, "TOK_FIELD"); 1657 1658 token = yylex(); 1659 if (token == NULL) { 1660 warnx("EOF in field definition"); 1661 return; 1662 } 1663 1664 /* Add new code to dictionary */ 1665 fcode = emalloc(sizeof(*fcode)); 1666 fcode->num = nextfcode++; 1667 fcode->name = estrdup(token->text); 1668 fadd(dictionary, fcode); 1669 1670 if (state == 0) 1671 emit("new-token"); 1672 else { 1673 if (state == TOK_EXTERNAL) 1674 emit("external-token"); 1675 else 1676 /* Here we have a choice of new-token or named-token */ 1677 emit("named-token"); 1678 sspit(token->text); 1679 } 1680 spit(fcode->num); 1681 emit("b(field)"); 1682 break; 1683 1684 case TOK_HEX: 1685 STATE(token->text, "TOK_HEX"); 1686 if (token->text[1] != '#') { 1687 if (defining) { 1688 emit("b(lit)"); 1689 spit(0); 1690 spit(0); 1691 spit(0); 1692 spit(16); 1693 emit("base"); 1694 emit("!"); 1695 } else 1696 numbase = TOK_HEX; 1697 } else { 1698 char *end; 1699 Cell value; 1700 1701 token = yylex(); 1702 if (token == NULL) { 1703 warnx("EOF after h#"); 1704 return; 1705 } 1706 value = strtol(token->text, &end, 16); 1707 if (*end != 0) 1708 errx(EXIT_FAILURE, "Illegal number" 1709 " conversion:%s:%d: %s\n", 1710 infile, yylineno, yytext); 1711 /* 1712 * If this is a 64-bit value we need to store two literals 1713 * and issue a `lxjoin' to combine them. But that's a future 1714 * project. 1715 */ 1716 emit("b(lit)"); 1717 spit((value>>24)&0x0ff); 1718 spit((value>>16)&0x0ff); 1719 spit((value>>8)&0x0ff); 1720 spit(value&0x0ff); 1721 if ((value>>32) != value && (value>>32) != 0) { 1722 emit("b(lit)"); 1723 spit((value>>56)&0x0ff); 1724 spit((value>>48)&0x0ff); 1725 spit((value>>40)&0x0ff); 1726 spit((value>>32)&0x0ff); 1727 emit("lxjoin"); 1728 } 1729 } 1730 break; 1731 case TOK_HEADERLESS: 1732 STATE(token->text, "TOK_HEADERLESS"); 1733 state = 0; 1734 break; 1735 case TOK_HEADERS: 1736 STATE(token->text, "TOK_HEADERS"); 1737 state = TOK_HEADERS; 1738 break; 1739 case TOK_IF: 1740 STATE(token->text, "TOK_IF"); 1741 /* 1742 * Similar to do but simpler since we only deal w/one branch. 1743 */ 1744 emit("b?branch"); 1745 push(outpos); 1746 offspit(0); /* Place holder for later */ 1747 break; 1748 case TOK_LEAVE: 1749 STATE(token->text, "TOK_LEAVE"); 1750 emit("b(leave)"); 1751 break; 1752 case TOK_LOOP: 1753 STATE(token->text, "TOK_LOOP"); 1754 1755 if (token->text[0] == '+') 1756 emit("b(+loop)"); 1757 else 1758 emit("b(loop)"); 1759 /* First do backwards branch of loop */ 1760 pos = pop(); 1761 off = pos - outpos; 1762 offspit(off); 1763 /* Now do forward branch of do */ 1764 pos = outpos; 1765 outpos = pop(); 1766 off = pos - outpos; 1767 spit(off); 1768 /* Restore output position */ 1769 outpos = pos; 1770 break; 1771 case TOK_OCTAL: 1772 STATE(token->text, "TOK_OCTAL"); 1773 if (token->text[1] != '#') { 1774 if (defining) { 1775 spit(16); 1776 emit("base"); 1777 emit("!"); 1778 } else 1779 numbase = TOK_OCTAL; 1780 } else { 1781 char *end; 1782 Cell value; 1783 1784 token = yylex(); 1785 if (token == NULL) { 1786 warnx("EOF after o#"); 1787 return; 1788 } 1789 value = strtol(token->text, &end, 8); 1790 if (*end != 0) { 1791 errx(EXIT_FAILURE, "Illegal number" 1792 " conversion:%s:%d: %s\n", 1793 infile, yylineno, yytext); 1794 } 1795 /* 1796 * If this is a 64-bit value we need to store two literals 1797 * and issue a `lxjoin' to combine them. But that's a future 1798 * project. 1799 */ 1800 emit("b(lit)"); 1801 spit((value>>24)&0x0ff); 1802 spit((value>>16)&0x0ff); 1803 spit((value>>8)&0x0ff); 1804 spit(value&0x0ff); 1805 if ((value>>32) != value && (value>>32) != 0) { 1806 emit("b(lit)"); 1807 spit((value>>56)&0x0ff); 1808 spit((value>>48)&0x0ff); 1809 spit((value>>40)&0x0ff); 1810 spit((value>>32)&0x0ff); 1811 emit("lxjoin"); 1812 } 1813 } 1814 break; 1815 case TOK_OF: 1816 STATE(token->text, "TOK_OF"); 1817 /* 1818 * Let's hope I get the semantics right. 1819 * 1820 * The `of' behaves almost the same as an 1821 * `if'. The difference is that `endof' 1822 * takes a branch offset to the associated 1823 * `endcase'. Here we will generate a temporary 1824 * offset of the `of' associated with the `endof'. 1825 * Then in `endcase' we should be pointing just 1826 * after the offset of the last `endof' so we 1827 * calculate the offset and thread our way backwards 1828 * searching for the previous `b(case)' or `b(endof)'. 1829 */ 1830 emit("b(of)"); 1831 push(outpos); 1832 offspit(0); /* Place holder for later */ 1833 break; 1834 case TOK_OFFSET16: 1835 STATE(token->text, "TOK_OFFSET16"); 1836 offsetsize = 16; 1837 emit("offset16"); 1838 break; 1839 case TOK_REPEAT: 1840 STATE(token->text, "TOK_REPEAT"); 1841 emit("bbranch"); 1842 pos = pop(); 1843 off = pop(); 1844 /* First the offset for the branch back to the begin */ 1845 off -= outpos; 1846 offspit(off); 1847 emit("b(>resolve)"); 1848 /* Now point the offset of the while here. */ 1849 off = outpos; 1850 outpos = pos; 1851 pos = off - pos; 1852 offspit(pos); 1853 /* Return to the end of the output */ 1854 outpos = off; 1855 break; 1856 case TOK_STARTX: 1857 /* Put a "startX" at addr 0. */ 1858 STATE(token->text, "TOK_FCODE_VERSION2"); 1859 offsetsize = 16; 1860 pos = outpos; 1861 outpos = 0; 1862 emit(token->text); 1863 outpos = pos; 1864 break; 1865 case TOK_THEN: 1866 STATE(token->text, "TOK_THEN"); 1867 emit("b(>resolve)"); 1868 pos = outpos; 1869 outpos = pop(); 1870 off = pos - outpos; 1871 offspit(off); 1872 outpos = pos; 1873 break; 1874 case TOK_TO: 1875 STATE(token->text, "TOK_TO"); 1876 /* The next pass should tokenize the FCODE number */ 1877 emit("b(to)"); 1878 break; 1879 case TOK_UNTIL: 1880 STATE(token->text, "TOK_UNTIL"); 1881 emit("b?branch"); 1882 pos = pop(); 1883 pos -= outpos; 1884 offspit(pos); 1885 break; 1886 case TOK_VALUE: 1887 STATE(token->text, "TOK_VALUE"); 1888 1889 token = yylex(); 1890 if (token == NULL) { 1891 warnx("EOF in value definition"); 1892 return; 1893 } 1894 1895 /* Add new code to dictionary */ 1896 fcode = emalloc(sizeof(*fcode)); 1897 fcode->num = nextfcode++; 1898 fcode->name = estrdup(token->text); 1899 fadd(dictionary, fcode); 1900 1901 if (state == 0) 1902 emit("new-token"); 1903 else { 1904 if (state == TOK_EXTERNAL) 1905 emit("external-token"); 1906 else 1907 /* Here we have a choice of new-token or named-token */ 1908 emit("named-token"); 1909 sspit(token->text); 1910 } 1911 spit(fcode->num); 1912 emit("b(value)"); 1913 break; 1914 case TOK_VARIABLE: 1915 STATE(token->text, "TOK_VARIABLE"); 1916 1917 token = yylex(); 1918 if (token == NULL) { 1919 warnx("EOF in variable definition"); 1920 return; 1921 } 1922 1923 /* Add new code to dictionary */ 1924 fcode = emalloc(sizeof(*fcode)); 1925 fcode->num = nextfcode++; 1926 fcode->name = estrdup(token->text); 1927 fadd(dictionary, fcode); 1928 1929 if (state == 0) 1930 emit("new-token"); 1931 else { 1932 if (state == TOK_EXTERNAL) 1933 emit("external-token"); 1934 else 1935 /* Here we have a choice of new-token or named-token */ 1936 emit("named-token"); 1937 sspit(token->text); 1938 } 1939 spit(fcode->num); 1940 emit("b(variable)"); 1941 break; 1942 case TOK_VERSION1: 1943 /* This is actually a tokenizer directive. */ 1944 STATE(token->text, "TOK_FCODE_VERSION1"); 1945 offsetsize = 8; 1946 pos = outpos; 1947 outpos = 0; 1948 emit("version1"); 1949 outpos = pos; 1950 break; 1951 case TOK_WHILE: 1952 STATE(token->text, "TOK_WHILE"); 1953 emit("b?branch"); 1954 push(outpos); 1955 offspit(0); 1956 break; 1957 1958 /* Tokenizer directives */ 1959 case TOK_BEGTOK: 1960 STATE(token->text, "TOK_BEGTOK"); 1961 tokenizer = 1; 1962 break; 1963 case TOK_EMIT_BYTE: 1964 STATE(token->text, "TOK_EMIT_BYTE"); 1965 spit(pop()); 1966 break; 1967 case TOK_ENDTOK: 1968 STATE(token->text, "TOK_ENDTOK"); 1969 tokenizer = 0; 1970 break; 1971 case TOK_FLOAD: 1972 { 1973 char *oldinfile = infile; 1974 1975 STATE(token->text, "TOK_FLOAD"); 1976 /* Parse a different file for a while */ 1977 token = yylex(); 1978 if ((inf = fopen(token->text, "r")) == NULL) { 1979 warn("Cannot open `%s'", token->text); 1980 break; 1981 } 1982 infile = estrdup(token->text); 1983 if (mark_fload) { 1984 /* 1985 * Insert commands to print out the 1986 * filename into the instruction 1987 * stream 1988 */ 1989 emit("b(\")"); 1990 sspit("fload-ing "); 1991 emit("type"); 1992 emit("b(\")"); 1993 sspit(infile); 1994 emit("type"); 1995 emit("cr"); 1996 emit(".s"); 1997 } 1998 inbuf = yy_create_buffer(inf, YY_BUF_SIZE); 1999 yy_switch_to_buffer(inbuf); 2000 2001 printf("======= fload file %s\n", infile); 2002 tokenize(inbuf); 2003 printf("======= done file %s\n", infile); 2004 yy_switch_to_buffer(yinput); 2005 yy_delete_buffer(inbuf); 2006 fclose(inf); 2007 if (mark_fload) { 2008 /* 2009 * Insert commands to print out the 2010 * filename into the instruction 2011 * stream 2012 */ 2013 emit("b(\")"); 2014 sspit("fload-ed "); 2015 emit("type"); 2016 emit("b(\")"); 2017 sspit(infile); 2018 emit("type"); 2019 emit("cr"); 2020 emit(".s"); 2021 emit("cr"); 2022 } 2023 free(infile); 2024 infile = oldinfile; 2025 } 2026 break; 2027 case TOK_OTHER: 2028 STATE(token->text, "TOK_OTHER"); 2029 if (apply_macros(yinput, token->text)) 2030 break; 2031 if (emit(token->text)) { 2032 #if 0 2033 /* 2034 * Call an external command 2035 * 2036 * XXXXX assumes it will always find the command 2037 */ 2038 sspit(token->text); 2039 emit("$find"); 2040 emit("drop"); 2041 emit("execute"); 2042 #else 2043 token_err(yylineno, infile, yytext, 2044 "%s: undefined token `%s'\n", 2045 __func__, token->text); 2046 #endif 2047 } 2048 break; 2049 default: 2050 /* Nothing */ ; 2051 } 2052 } 2053 return; 2054 } 2055 2056 /* 2057 * print a tokenizer error message 2058 */ 2059 static void 2060 token_err(int lineno, const char *file, const char *text, const char *fmt, ...) 2061 { 2062 va_list ap; 2063 2064 va_start(ap, fmt); 2065 fprintf(stderr, "%s: ", getprogname()); 2066 if (file) 2067 (void)fprintf(stderr, "%s,%d: ", file, lineno); 2068 if (fmt) 2069 (void)vfprintf(stderr, fmt, ap); 2070 fputc('\n', stderr); 2071 if (text) 2072 fprintf(stderr, "\t%s", text); 2073 va_end(ap); 2074 exit(EXIT_FAILURE); 2075 } 2076 2077 /* 2078 * Lookup fcode string in dictionary and spit it out. 2079 * 2080 * Fcode must be in dictionary. No alias conversion done. 2081 */ 2082 static int 2083 emit(const char *str) 2084 { 2085 struct fcode *code; 2086 if ((code = flookup(dictionary, str))) 2087 spit(code->num); 2088 if (debug > 1) { 2089 if (code) 2090 printf("emitting `%s'\n", code->name); 2091 else 2092 printf("emit: not found `%s'\n", str); 2093 } 2094 return (code == NULL); 2095 } 2096 2097 /* 2098 * Spit out an integral value as a series of FCodes. 2099 * 2100 * It will spit out one zero byte or as many bytes as are 2101 * non-zero. 2102 */ 2103 static int 2104 spit(long n) 2105 { 2106 int count = 1; 2107 2108 if (n >> 8) 2109 count += spit(n >> 8); 2110 if ((size_t)outpos >= outbufsiz) { 2111 while ((size_t)outpos >= outbufsiz) outbufsiz += BUFCLICK; 2112 outbuf = erealloc(outbuf, outbufsiz); 2113 } 2114 if (debug > 3) printf("%lx: spitting %2.2x\n", outpos, (unsigned char)n); 2115 outbuf[outpos++] = n; 2116 return (count); 2117 } 2118 2119 /* 2120 * Spit out an FCode string. 2121 */ 2122 static void 2123 sspit(const char *s) 2124 { 2125 int len = strlen(s); 2126 2127 if (len > 255) { 2128 warnx("string length %d too long", len); 2129 return; 2130 } 2131 if (debug > 2) 2132 printf("sspit: len %d str `%s'\n", len, s); 2133 spit(len); 2134 while (len--) 2135 spit(*s++); 2136 } 2137 2138 /* 2139 * Spit out an offset. Offsets can be 8 or 16 bits. 2140 * Bail if the value overflows. This is a little complicated since 2141 * offsets can be negative numbers. 2142 */ 2143 static int 2144 offspit(long n) 2145 { 2146 2147 if (offsetsize == 16) { 2148 volatile int16_t off16 = n; 2149 2150 if (n != off16) 2151 token_err(yylineno, infile, NULL, 2152 "Offset16 offset overflow: %lx != %x\n", 2153 n, off16); 2154 spit((n>>8) & 0xff); 2155 return spit(n & 0xff); 2156 } else { 2157 volatile int8_t off8 = n; 2158 2159 if (n != off8) 2160 token_err(yylineno, infile, NULL, 2161 "Offset8 offset overflow: %lx != %x\n", 2162 n, off8); 2163 return spit(n & 0x0ffL); 2164 } 2165 } 2166 2167 int 2168 yywrap(void) 2169 { 2170 /* Always generate EOF */ 2171 return (1); 2172 } 2173
Indexes created Thu Oct 02 14:10:14 GMT 2025