assembler/parser.y

   1 %{
   2
   3 /*
   4  *   Copyright (C) 2006-2007  Michael Buesch <mb@bu3sch.de>
   5  *
   6  *   This program is free software; you can redistribute it and/or modify
   7  *   it under the terms of the GNU General Public License version 2
   8  *   as published by the Free Software Foundation.
   9  *
  10  *   This program is distributed in the hope that it will be useful,
  11  *   but WITHOUT ANY WARRANTY; without even the implied warranty of
  12  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13  *   GNU General Public License for more details.
  14  */
  15
  16 #include "main.h"
  17 #include "initvals.h"
  18 #include "util.h"
  19
  20 #include <stdlib.h>
  21 #include <stdio.h>
  22 #include <string.h>
  23 #include <stdint.h>
  24
  25 extern char *yytext;
  26 extern void yyerror(char *);
  27 extern int yyparse(void);
  28 extern int yylex(void);
  29
  30 static struct operand * store_oper_sanity(struct operand *oper);
  31
  32 /* The current .section */
  33 extern int section;
  34 /* Pointer to the current initvals section data structure. */
  35 extern struct initvals_sect *cur_initvals_sect;
  36
  37 %}
  38
  39 %token SECTION_TEXT SECTION_IVALS
  40
  41 %token ASM_ARCH ASM_START SPR GPR OFFR LR COMMA SEMICOLON BRACK_OPEN BRACK_CLOSE PAREN_OPEN PAREN_CLOSE HEXNUM DECNUM ARCH_NEWWORLD ARCH_OLDWORLD LABEL IDENT LABELREF
  42
  43 %token PLUS MINUS MULTIPLY DIVIDE BITW_OR BITW_AND BITW_XOR BITW_NOT LEFTSHIFT RIGHTSHIFT
  44
  45 %token OP_ADD OP_ADDSC OP_ADDC OP_ADDSCC OP_SUB OP_SUBSC OP_SUBC OP_SUBSCC OP_SRA OP_OR OP_AND OP_XOR OP_SR OP_SRX OP_SL OP_RL OP_RR OP_NAND OP_ORX OP_MOV OP_JMP OP_JAND OP_JNAND OP_JS OP_JNS OP_JE OP_JNE OP_JLS OP_JGES OP_JGS OP_JLES OP_JL OP_JGE OP_JG OP_JLE OP_JZX OP_JNZX OP_JEXT OP_JNEXT OP_CALL OP_RET OP_TKIPH OP_TKIPHS OP_TKIPL OP_TKIPLS OP_NAP RAW_CODE
  46
  47 %token IVAL_MMIO16 IVAL_MMIO32 IVAL_PHY IVAL_RADIO IVAL_SHM16 IVAL_SHM32
  48
  49 %start line
  50
  51 %%
  52
  53 line    : line_terminator {
  54                 /* empty */
  55           }
  56         | line statement line_terminator {
  57                 struct statement *s = $2;
  58                 if (section != SECTION_TEXT)
  59                         yyerror("Microcode text instruction in non .text section");
  60                 memcpy(&s->info, &cur_lineinfo, sizeof(struct lineinfo));
  61                 list_add_tail(&s->list, &infile.sl);
  62           }
  63         | line section_switch line_terminator {
  64           }
  65         | line ivals_write line_terminator {
  66                 struct initval_op *io = $2;
  67                 if (section != SECTION_IVALS)
  68                         yyerror("InitVals write in non .initvals section");
  69                 memcpy(&io->info, &cur_lineinfo, sizeof(struct lineinfo));
  70                 INIT_LIST_HEAD(&io->list);
  71                 list_add_tail(&io->list, &cur_initvals_sect->ops);
  72           }
  73         ;
  74
  75 /* Allow terminating lines with the ";" char */
  76 line_terminator : /* Nothing */
  77                 | SEMICOLON line_terminator
  78                 ;
  79
  80 section_switch  : SECTION_TEXT {
  81                         section = SECTION_TEXT;
  82                   }
  83                 | SECTION_IVALS PAREN_OPEN identifier PAREN_CLOSE {
  84                         const char *sectname = $3;
  85                         struct initvals_sect *s;
  86                         cur_initvals_sect = NULL;
  87                         /* Search if there already is a section by that name. */
  88                         list_for_each_entry(s, &infile.ivals, list) {
  89                                 if (strcmp(sectname, s->name) == 0)
  90                                         cur_initvals_sect = s;
  91                         }
  92                         if (!cur_initvals_sect) {
  93                                 /* Not found, create a new one. */
  94                                 s = xmalloc(sizeof(struct initvals_sect));
  95                                 s->name = sectname;
  96                                 INIT_LIST_HEAD(&s->ops);
  97                                 INIT_LIST_HEAD(&s->list);
  98                                 list_add_tail(&s->list, &infile.ivals);
  99                                 cur_initvals_sect = s;
 100                         }
 101                         section = SECTION_IVALS;
 102                   }
 103                 ;
 104
 105 ivals_write     : IVAL_MMIO16 hexnum_decnum COMMA hexnum_decnum {
 106                         struct initval_op *iop = xmalloc(sizeof(struct initval_op));
 107                         iop->type = IVAL_W_MMIO16;
 108                         iop->args[0] = (unsigned int)(unsigned long)$2;
 109                         iop->args[1] = (unsigned int)(unsigned long)$4;
 110                         $$ = iop;
 111                   }
 112                 | IVAL_MMIO32 hexnum_decnum COMMA hexnum_decnum {
 113                         struct initval_op *iop = xmalloc(sizeof(struct initval_op));
 114                         iop->type = IVAL_W_MMIO32;
 115                         iop->args[0] = (unsigned int)(unsigned long)$2;
 116                         iop->args[1] = (unsigned int)(unsigned long)$4;
 117                         $$ = iop;
 118                   }
 119                 | IVAL_PHY hexnum_decnum COMMA hexnum_decnum {
 120                         struct initval_op *iop = xmalloc(sizeof(struct initval_op));
 121                         iop->type = IVAL_W_PHY;
 122                         iop->args[0] = (unsigned int)(unsigned long)$2;
 123                         iop->args[1] = (unsigned int)(unsigned long)$4;
 124                         $$ = iop;
 125                   }
 126                 | IVAL_RADIO hexnum_decnum COMMA hexnum_decnum {
 127                         struct initval_op *iop = xmalloc(sizeof(struct initval_op));
 128                         iop->type = IVAL_W_RADIO;
 129                         iop->args[0] = (unsigned int)(unsigned long)$2;
 130                         iop->args[1] = (unsigned int)(unsigned long)$4;
 131                         $$ = iop;
 132                   }
 133                 | IVAL_SHM16 hexnum_decnum COMMA hexnum_decnum COMMA hexnum_decnum {
 134                         struct initval_op *iop = xmalloc(sizeof(struct initval_op));
 135                         iop->type = IVAL_W_SHM16;
 136                         iop->args[0] = (unsigned int)(unsigned long)$2;
 137                         iop->args[1] = (unsigned int)(unsigned long)$4;
 138                         iop->args[2] = (unsigned int)(unsigned long)$6;
 139                         $$ = iop;
 140                   }
 141                 | IVAL_SHM32 hexnum_decnum COMMA hexnum_decnum COMMA hexnum_decnum {
 142                         struct initval_op *iop = xmalloc(sizeof(struct initval_op));
 143                         iop->type = IVAL_W_SHM32;
 144                         iop->args[0] = (unsigned int)(unsigned long)$2;
 145                         iop->args[1] = (unsigned int)(unsigned long)$4;
 146                         iop->args[2] = (unsigned int)(unsigned long)$6;
 147                         $$ = iop;
 148                   }
 149                 ;
 150
 151 statement       : asmdir {
 152                         struct statement *s = xmalloc(sizeof(struct statement));
 153                         INIT_LIST_HEAD(&s->list);
 154                         s->type = STMT_ASMDIR;
 155                         s->u.asmdir = $1;
 156                         $$ = s;
 157                   }
 158                 | label {
 159                         struct statement *s = xmalloc(sizeof(struct statement));
 160                         INIT_LIST_HEAD(&s->list);
 161                         s->type = STMT_LABEL;
 162                         s->u.label = $1;
 163                         $$ = s;
 164                   }
 165                 | insn_add {
 166                         struct statement *s = xmalloc(sizeof(struct statement));
 167                         INIT_LIST_HEAD(&s->list);
 168                         s->type = STMT_INSN;
 169                         s->u.insn = $1;
 170                         $$ = s;
 171                   }
 172                 | insn_addsc {
 173                         struct statement *s = xmalloc(sizeof(struct statement));
 174                         INIT_LIST_HEAD(&s->list);
 175                         s->type = STMT_INSN;
 176                         s->u.insn = $1;
 177                         $$ = s;
 178                   }
 179                 | insn_addc {
 180                         struct statement *s = xmalloc(sizeof(struct statement));
 181                         INIT_LIST_HEAD(&s->list);
 182                         s->type = STMT_INSN;
 183                         s->u.insn = $1;
 184                         $$ = s;
 185                   }
 186                 | insn_addscc {
 187                         struct statement *s = xmalloc(sizeof(struct statement));
 188                         INIT_LIST_HEAD(&s->list);
 189                         s->type = STMT_INSN;
 190                         s->u.insn = $1;
 191                         $$ = s;
 192                   }
 193                 | insn_sub {
 194                         struct statement *s = xmalloc(sizeof(struct statement));
 195                         INIT_LIST_HEAD(&s->list);
 196                         s->type = STMT_INSN;
 197                         s->u.insn = $1;
 198                         $$ = s;
 199                   }
 200                 | insn_subsc {
 201                         struct statement *s = xmalloc(sizeof(struct statement));
 202                         INIT_LIST_HEAD(&s->list);
 203                         s->type = STMT_INSN;
 204                         s->u.insn = $1;
 205                         $$ = s;
 206                   }
 207                 | insn_subc {
 208                         struct statement *s = xmalloc(sizeof(struct statement));
 209                         INIT_LIST_HEAD(&s->list);
 210                         s->type = STMT_INSN;
 211                         s->u.insn = $1;
 212                         $$ = s;
 213                   }
 214                 | insn_subscc {
 215                         struct statement *s = xmalloc(sizeof(struct statement));
 216                         INIT_LIST_HEAD(&s->list);
 217                         s->type = STMT_INSN;
 218                         s->u.insn = $1;
 219                         $$ = s;
 220                   }
 221                 | insn_sra {
 222                         struct statement *s = xmalloc(sizeof(struct statement));
 223                         INIT_LIST_HEAD(&s->list);
 224                         s->type = STMT_INSN;
 225                         s->u.insn = $1;
 226                         $$ = s;
 227                   }
 228                 | insn_or {
 229                         struct statement *s = xmalloc(sizeof(struct statement));
 230                         INIT_LIST_HEAD(&s->list);
 231                         s->type = STMT_INSN;
 232                         s->u.insn = $1;
 233                         $$ = s;
 234                   }
 235                 | insn_and {
 236                         struct statement *s = xmalloc(sizeof(struct statement));
 237                         INIT_LIST_HEAD(&s->list);
 238                         s->type = STMT_INSN;
 239                         s->u.insn = $1;
 240                         $$ = s;
 241                   }
 242                 | insn_xor {
 243                         struct statement *s = xmalloc(sizeof(struct statement));
 244                         INIT_LIST_HEAD(&s->list);
 245                         s->type = STMT_INSN;
 246                         s->u.insn = $1;
 247                         $$ = s;
 248                   }
 249                 | insn_sr {
 250                         struct statement *s = xmalloc(sizeof(struct statement));
 251                         INIT_LIST_HEAD(&s->list);
 252                         s->type = STMT_INSN;
 253                         s->u.insn = $1;
 254                         $$ = s;
 255                   }
 256                 | insn_srx {
 257                         struct statement *s = xmalloc(sizeof(struct statement));
 258                         INIT_LIST_HEAD(&s->list);
 259                         s->type = STMT_INSN;
 260                         s->u.insn = $1;
 261                         $$ = s;
 262                   }
 263                 | insn_sl {
 264                         struct statement *s = xmalloc(sizeof(struct statement));
 265                         INIT_LIST_HEAD(&s->list);
 266                         s->type = STMT_INSN;
 267                         s->u.insn = $1;
 268                         $$ = s;
 269                   }
 270                 | insn_rl {
 271                         struct statement *s = xmalloc(sizeof(struct statement));
 272                         INIT_LIST_HEAD(&s->list);
 273                         s->type = STMT_INSN;
 274                         s->u.insn = $1;
 275                         $$ = s;
 276                   }
 277                 | insn_rr {
 278                         struct statement *s = xmalloc(sizeof(struct statement));
 279                         INIT_LIST_HEAD(&s->list);
 280                         s->type = STMT_INSN;
 281                         s->u.insn = $1;
 282                         $$ = s;
 283                   }
 284                 | insn_nand {
 285                         struct statement *s = xmalloc(sizeof(struct statement));
 286                         INIT_LIST_HEAD(&s->list);
 287                         s->type = STMT_INSN;
 288                         s->u.insn = $1;
 289                         $$ = s;
 290                   }
 291                 | insn_orx {
 292                         struct statement *s = xmalloc(sizeof(struct statement));
 293                         INIT_LIST_HEAD(&s->list);
 294                         s->type = STMT_INSN;
 295                         s->u.insn = $1;
 296                         $$ = s;
 297                   }
 298                 | insn_mov {
 299                         struct statement *s = xmalloc(sizeof(struct statement));
 300                         INIT_LIST_HEAD(&s->list);
 301                         s->type = STMT_INSN;
 302                         s->u.insn = $1;
 303                         $$ = s;
 304                   }
 305                 | insn_jmp {
 306                         struct statement *s = xmalloc(sizeof(struct statement));
 307                         INIT_LIST_HEAD(&s->list);
 308                         s->type = STMT_INSN;
 309                         s->u.insn = $1;
 310                         $$ = s;
 311                   }
 312                 | insn_jand {
 313                         struct statement *s = xmalloc(sizeof(struct statement));
 314                         INIT_LIST_HEAD(&s->list);
 315                         s->type = STMT_INSN;
 316                         s->u.insn = $1;
 317                         $$ = s;
 318                   }
 319                 | insn_jnand {
 320                         struct statement *s = xmalloc(sizeof(struct statement));
 321                         INIT_LIST_HEAD(&s->list);
 322                         s->type = STMT_INSN;
 323                         s->u.insn = $1;
 324                         $$ = s;
 325                   }
 326                 | insn_js {
 327                         struct statement *s = xmalloc(sizeof(struct statement));
 328                         INIT_LIST_HEAD(&s->list);
 329                         s->type = STMT_INSN;
 330                         s->u.insn = $1;
 331                         $$ = s;
 332                   }
 333                 | insn_jns {
 334                         struct statement *s = xmalloc(sizeof(struct statement));
 335                         INIT_LIST_HEAD(&s->list);
 336                         s->type = STMT_INSN;
 337                         s->u.insn = $1;
 338                         $$ = s;
 339                   }
 340                 | insn_je {
 341                         struct statement *s = xmalloc(sizeof(struct statement));
 342                         INIT_LIST_HEAD(&s->list);
 343                         s->type = STMT_INSN;
 344                         s->u.insn = $1;
 345                         $$ = s;
 346                   }
 347                 | insn_jne {
 348                         struct statement *s = xmalloc(sizeof(struct statement));
 349                         INIT_LIST_HEAD(&s->list);
 350                         s->type = STMT_INSN;
 351                         s->u.insn = $1;
 352                         $$ = s;
 353                   }
 354                 | insn_jls {
 355                         struct statement *s = xmalloc(sizeof(struct statement));
 356                         INIT_LIST_HEAD(&s->list);
 357                         s->type = STMT_INSN;
 358                         s->u.insn = $1;
 359                         $$ = s;
 360                   }
 361                 | insn_jges {
 362                         struct statement *s = xmalloc(sizeof(struct statement));
 363                         INIT_LIST_HEAD(&s->list);
 364                         s->type = STMT_INSN;
 365                         s->u.insn = $1;
 366                         $$ = s;
 367                   }
 368                 | insn_jgs {
 369                         struct statement *s = xmalloc(sizeof(struct statement));
 370                         INIT_LIST_HEAD(&s->list);
 371                         s->type = STMT_INSN;
 372                         s->u.insn = $1;
 373                         $$ = s;
 374                   }
 375                 | insn_jles {
 376                         struct statement *s = xmalloc(sizeof(struct statement));
 377                         INIT_LIST_HEAD(&s->list);
 378                         s->type = STMT_INSN;
 379                         s->u.insn = $1;
 380                         $$ = s;
 381                   }
 382                 | insn_jl {
 383                         struct statement *s = xmalloc(sizeof(struct statement));
 384                         INIT_LIST_HEAD(&s->list);
 385                         s->type = STMT_INSN;
 386                         s->u.insn = $1;
 387                         $$ = s;
 388                   }
 389                 | insn_jge {
 390                         struct statement *s = xmalloc(sizeof(struct statement));
 391                         INIT_LIST_HEAD(&s->list);
 392                         s->type = STMT_INSN;
 393                         s->u.insn = $1;
 394                         $$ = s;
 395                   }
 396                 | insn_jg {
 397                         struct statement *s = xmalloc(sizeof(struct statement));
 398                         INIT_LIST_HEAD(&s->list);
 399                         s->type = STMT_INSN;
 400                         s->u.insn = $1;
 401                         $$ = s;
 402                   }
 403                 | insn_jle {
 404                         struct statement *s = xmalloc(sizeof(struct statement));
 405                         INIT_LIST_HEAD(&s->list);
 406                         s->type = STMT_INSN;
 407                         s->u.insn = $1;
 408                         $$ = s;
 409                   }
 410                 | insn_jzx {
 411                         struct statement *s = xmalloc(sizeof(struct statement));
 412                         INIT_LIST_HEAD(&s->list);
 413                         s->type = STMT_INSN;
 414                         s->u.insn = $1;
 415                         $$ = s;
 416                   }
 417                 | insn_jnzx {
 418                         struct statement *s = xmalloc(sizeof(struct statement));
 419                         INIT_LIST_HEAD(&s->list);
 420                         s->type = STMT_INSN;
 421                         s->u.insn = $1;
 422                         $$ = s;
 423                   }
 424                 | insn_jext {
 425                         struct statement *s = xmalloc(sizeof(struct statement));
 426                         INIT_LIST_HEAD(&s->list);
 427                         s->type = STMT_INSN;
 428                         s->u.insn = $1;
 429                         $$ = s;
 430                   }
 431                 | insn_jnext {
 432                         struct statement *s = xmalloc(sizeof(struct statement));
 433                         INIT_LIST_HEAD(&s->list);
 434                         s->type = STMT_INSN;
 435                         s->u.insn = $1;
 436                         $$ = s;
 437                   }
 438                 | insn_call {
 439                         struct statement *s = xmalloc(sizeof(struct statement));
 440                         INIT_LIST_HEAD(&s->list);
 441                         s->type = STMT_INSN;
 442                         s->u.insn = $1;
 443                         $$ = s;
 444                   }
 445                 | insn_ret {
 446                         struct statement *s = xmalloc(sizeof(struct statement));
 447                         INIT_LIST_HEAD(&s->list);
 448                         s->type = STMT_INSN;
 449                         s->u.insn = $1;
 450                         $$ = s;
 451                   }
 452                 | insn_tkiph {
 453                         struct statement *s = xmalloc(sizeof(struct statement));
 454                         INIT_LIST_HEAD(&s->list);
 455                         s->type = STMT_INSN;
 456                         s->u.insn = $1;
 457                         $$ = s;
 458                   }
 459                 | insn_tkiphs {
 460                         struct statement *s = xmalloc(sizeof(struct statement));
 461                         INIT_LIST_HEAD(&s->list);
 462                         s->type = STMT_INSN;
 463                         s->u.insn = $1;
 464                         $$ = s;
 465                   }
 466                 | insn_tkipl {
 467                         struct statement *s = xmalloc(sizeof(struct statement));
 468                         INIT_LIST_HEAD(&s->list);
 469                         s->type = STMT_INSN;
 470                         s->u.insn = $1;
 471                         $$ = s;
 472                   }
 473                 | insn_tkipls {
 474                         struct statement *s = xmalloc(sizeof(struct statement));
 475                         INIT_LIST_HEAD(&s->list);
 476                         s->type = STMT_INSN;
 477                         s->u.insn = $1;
 478                         $$ = s;
 479                   }
 480                 | insn_nap {
 481                         struct statement *s = xmalloc(sizeof(struct statement));
 482                         INIT_LIST_HEAD(&s->list);
 483                         s->type = STMT_INSN;
 484                         s->u.insn = $1;
 485                         $$ = s;
 486                   }
 487                 | insn_raw {
 488                         struct statement *s = xmalloc(sizeof(struct statement));
 489                         INIT_LIST_HEAD(&s->list);
 490                         s->type = STMT_INSN;
 491                         s->u.insn = $1;
 492                         $$ = s;
 493                   }
 494                 ;
 495
 496 /* ASM directives */
 497 asmdir          : ASM_ARCH hexnum_decnum {
 498                         struct asmdir *ad = xmalloc(sizeof(struct asmdir));
 499                         ad->type = ADIR_ARCH;
 500                         ad->u.arch = (unsigned int)(unsigned long)$2;
 501                         $$ = ad;
 502                   }
 503                 | ASM_START identifier {
 504                         struct asmdir *ad = xmalloc(sizeof(struct asmdir));
 505                         struct label *label = xmalloc(sizeof(struct label));
 506                         label->name = $2;
 507                         label->direction = LABELREF_ABSOLUTE;
 508                         ad->type = ADIR_START;
 509                         ad->u.start = label;
 510                         $$ = ad;
 511                   }
 512                 ;
 513
 514 label           : LABEL {
 515                         struct label *label = xmalloc(sizeof(struct label));
 516                         char *l;
 517                         l = xstrdup(yytext);
 518                         l[strlen(l) - 1] = '\0';
 519                         label->name = l;
 520                         $$ = label;
 521                   }
 522                 ;
 523
 524 /* add */
 525 insn_add        : OP_ADD operlist_3 {
 526                         struct instruction *insn = xmalloc(sizeof(struct instruction));
 527                         insn->op = OP_ADD;
 528                         insn->operands = $2;
 529                         $$ = insn;
 530                   }
 531                 ;
 532
 533 /* add. */
 534 insn_addsc      : OP_ADDSC operlist_3 {
 535                         struct instruction *insn = xmalloc(sizeof(struct instruction));
 536                         insn->op = OP_ADDSC;
 537                         insn->operands = $2;
 538                         $$ = insn;
 539                   }
 540                 ;
 541
 542 /* addc */
 543 insn_addc       : OP_ADDC operlist_3 {
 544                         struct instruction *insn = xmalloc(sizeof(struct instruction));
 545                         insn->op = OP_ADDC;
 546                         insn->operands = $2;
 547                         $$ = insn;
 548                   }
 549                 ;
 550
 551 /* addc. */
 552 insn_addscc     : OP_ADDSCC operlist_3 {
 553                         struct instruction *insn = xmalloc(sizeof(struct instruction));
 554                         insn->op = OP_ADDSCC;
 555                         insn->operands = $2;
 556                         $$ = insn;
 557                   }
 558                 ;
 559
 560 /* sub */
 561 insn_sub        : OP_SUB operlist_3 {
 562                         struct instruction *insn = xmalloc(sizeof(struct instruction));
 563                         insn->op = OP_SUB;
 564                         insn->operands = $2;
 565                         $$ = insn;
 566                   }
 567                 ;
 568
 569 /* sub. */
 570 insn_subsc      : OP_SUBSC operlist_3 {
 571                         struct instruction *insn = xmalloc(sizeof(struct instruction));
 572                         insn->op = OP_SUBSC;
 573                         insn->operands = $2;
 574                         $$ = insn;
 575                   }
 576                 ;
 577
 578 /* subc */
 579 insn_subc       : OP_SUBC operlist_3 {
 580                         struct instruction *insn = xmalloc(sizeof(struct instruction));
 581                         insn->op = OP_SUBC;
 582                         insn->operands = $2;
 583                         $$ = insn;
 584                   }
 585                 ;
 586
 587 /* subc. */
 588 insn_subscc     : OP_SUBSCC operlist_3 {
 589                         struct instruction *insn = xmalloc(sizeof(struct instruction));
 590                         insn->op = OP_SUBSCC;
 591                         insn->operands = $2;
 592                         $$ = insn;
 593                   }
 594                 ;
 595
 596 insn_sra        : OP_SRA operlist_3 {
 597                         struct instruction *insn = xmalloc(sizeof(struct instruction));
 598                         insn->op = OP_SRA;
 599                         insn->operands = $2;
 600                         $$ = insn;
 601                   }
 602                 ;
 603
 604 insn_or         : OP_OR operlist_3 {
 605                         struct instruction *insn = xmalloc(sizeof(struct instruction));
 606                         insn->op = OP_OR;
 607                         insn->operands = $2;
 608                         $$ = insn;
 609                   }
 610                 ;
 611
 612 insn_and        : OP_AND operlist_3 {
 613                         struct instruction *insn = xmalloc(sizeof(struct instruction));
 614                         insn->op = OP_AND;
 615                         insn->operands = $2;
 616                         $$ = insn;
 617                   }
 618                 ;
 619
 620 insn_xor        : OP_XOR operlist_3 {
 621                         struct instruction *insn = xmalloc(sizeof(struct instruction));
 622                         insn->op = OP_XOR;
 623                         insn->operands = $2;
 624                         $$ = insn;
 625                   }
 626                 ;
 627
 628 insn_sr         : OP_SR operlist_3 {
 629                         struct instruction *insn = xmalloc(sizeof(struct instruction));
 630                         insn->op = OP_SR;
 631                         insn->operands = $2;
 632                         $$ = insn;
 633                   }
 634                 ;
 635
 636 insn_srx        : OP_SRX extended_operlist {
 637                         struct instruction *insn = xmalloc(sizeof(struct instruction));
 638                         insn->op = OP_SRX;
 639                         insn->operands = $2;
 640                         $$ = insn;
 641                   }
 642                 ;
 643
 644 insn_sl         : OP_SL operlist_3 {
 645                         struct instruction *insn = xmalloc(sizeof(struct instruction));
 646                         insn->op = OP_SL;
 647                         insn->operands = $2;
 648                         $$ = insn;
 649                   }
 650                 ;
 651
 652 insn_rl         : OP_RL operlist_3 {
 653                         struct instruction *insn = xmalloc(sizeof(struct instruction));
 654                         insn->op = OP_RL;
 655                         insn->operands = $2;
 656                         $$ = insn;
 657                   }
 658                 ;
 659
 660 insn_rr         : OP_RR operlist_3 {
 661                         struct instruction *insn = xmalloc(sizeof(struct instruction));
 662                         insn->op = OP_RR;
 663                         insn->operands = $2;
 664                         $$ = insn;
 665                   }
 666                 ;
 667
 668 insn_nand       : OP_NAND operlist_3 {
 669                         struct instruction *insn = xmalloc(sizeof(struct instruction));
 670                         insn->op = OP_NAND;
 671                         insn->operands = $2;
 672                         $$ = insn;
 673                   }
 674                 ;
 675
 676 insn_orx        : OP_ORX extended_operlist {
 677                         struct instruction *insn = xmalloc(sizeof(struct instruction));
 678                         insn->op = OP_ORX;
 679                         insn->operands = $2;
 680                         $$ = insn;
 681                   }
 682                 ;
 683
 684 insn_mov        : OP_MOV operlist_2 {
 685                         struct instruction *insn = xmalloc(sizeof(struct instruction));
 686                         insn->op = OP_MOV;
 687                         insn->operands = $2;
 688                         $$ = insn;
 689                   }
 690                 ;
 691
 692 insn_jmp        : OP_JMP labelref {
 693                         struct instruction *insn = xmalloc(sizeof(struct instruction));
 694                         struct operlist *ol = xmalloc(sizeof(struct operlist));
 695                         ol->oper[0] = $2;
 696                         insn->op = OP_JMP;
 697                         insn->operands = ol;
 698                         $$ = insn;
 699                   }
 700                 ;
 701
 702 insn_jand       : OP_JAND operlist_3 {
 703                         struct instruction *insn = xmalloc(sizeof(struct instruction));
 704                         insn->op = OP_JAND;
 705                         insn->operands = $2;
 706                         $$ = insn;
 707                   }
 708                 ;
 709
 710 insn_jnand      : OP_JNAND operlist_3 {
 711                         struct instruction *insn = xmalloc(sizeof(struct instruction));
 712                         insn->op = OP_JNAND;
 713                         insn->operands = $2;
 714                         $$ = insn;
 715                   }
 716                 ;
 717
 718 insn_js         : OP_JS operlist_3 {
 719                         struct instruction *insn = xmalloc(sizeof(struct instruction));
 720                         insn->op = OP_JS;
 721                         insn->operands = $2;
 722                         $$ = insn;
 723                   }
 724                 ;
 725
 726 insn_jns        : OP_JNS operlist_3 {
 727                         struct instruction *insn = xmalloc(sizeof(struct instruction));
 728                         insn->op = OP_JNS;
 729                         insn->operands = $2;
 730                         $$ = insn;
 731                   }
 732                 ;
 733
 734 insn_je         : OP_JE operlist_3 {
 735                         struct instruction *insn = xmalloc(sizeof(struct instruction));
 736                         insn->op = OP_JE;
 737                         insn->operands = $2;
 738                         $$ = insn;
 739                   }
 740                 ;
 741
 742 insn_jne        : OP_JNE operlist_3 {
 743                         struct instruction *insn = xmalloc(sizeof(struct instruction));
 744                         insn->op = OP_JNE;
 745                         insn->operands = $2;
 746                         $$ = insn;
 747                   }
 748                 ;
 749
 750 insn_jls        : OP_JLS operlist_3 {
 751                         struct instruction *insn = xmalloc(sizeof(struct instruction));
 752                         insn->op = OP_JLS;
 753                         insn->operands = $2;
 754                         $$ = insn;
 755                   }
 756                 ;
 757
 758 insn_jges       : OP_JGES operlist_3 {
 759                         struct instruction *insn = xmalloc(sizeof(struct instruction));
 760                         insn->op = OP_JGES;
 761                         insn->operands = $2;
 762                         $$ = insn;
 763                   }
 764                 ;
 765
 766 insn_jgs        : OP_JGS operlist_3 {
 767                         struct instruction *insn = xmalloc(sizeof(struct instruction));
 768                         insn->op = OP_JGS;
 769                         insn->operands = $2;
 770                         $$ = insn;
 771                   }
 772                 ;
 773
 774 insn_jles       : OP_JLES operlist_3 {
 775                         struct instruction *insn = xmalloc(sizeof(struct instruction));
 776                         insn->op = OP_JLES;
 777                         insn->operands = $2;
 778                         $$ = insn;
 779                   }
 780                 ;
 781
 782 insn_jl         : OP_JL operlist_3 {
 783                         struct instruction *insn = xmalloc(sizeof(struct instruction));
 784                         insn->op = OP_JL;
 785                         insn->operands = $2;
 786                         $$ = insn;
 787                   }
 788                 ;
 789
 790 insn_jge        : OP_JGE operlist_3 {
 791                         struct instruction *insn = xmalloc(sizeof(struct instruction));
 792                         insn->op = OP_JGE;
 793                         insn->operands = $2;
 794                         $$ = insn;
 795                   }
 796                 ;
 797
 798 insn_jg         : OP_JG operlist_3 {
 799                         struct instruction *insn = xmalloc(sizeof(struct instruction));
 800                         insn->op = OP_JG;
 801                         insn->operands = $2;
 802                         $$ = insn;
 803                   }
 804                 ;
 805
 806 insn_jle        : OP_JLE operlist_3 {
 807                         struct instruction *insn = xmalloc(sizeof(struct instruction));
 808                         insn->op = OP_JLE;
 809                         insn->operands = $2;
 810                         $$ = insn;
 811                   }
 812                 ;
 813
 814 insn_jzx        : OP_JZX extended_operlist {
 815                         struct instruction *insn = xmalloc(sizeof(struct instruction));
 816                         insn->op = OP_JZX;
 817                         insn->operands = $2;
 818                         $$ = insn;
 819                   }
 820                 ;
 821
 822 insn_jnzx       : OP_JNZX extended_operlist {
 823                         struct instruction *insn = xmalloc(sizeof(struct instruction));
 824                         insn->op = OP_JNZX;
 825                         insn->operands = $2;
 826                         $$ = insn;
 827                   }
 828                 ;
 829
 830 insn_jext       : OP_JEXT external_jump_operands {
 831                         struct instruction *insn = xmalloc(sizeof(struct instruction));
 832                         insn->op = OP_JEXT;
 833                         insn->operands = $2;
 834                         $$ = insn;
 835                   }
 836                 ;
 837
 838 insn_jnext      : OP_JNEXT external_jump_operands {
 839                         struct instruction *insn = xmalloc(sizeof(struct instruction));
 840                         insn->op = OP_JNEXT;
 841                         insn->operands = $2;
 842                         $$ = insn;
 843                   }
 844                 ;
 845
 846 linkreg         : LR regnr {
 847                         $$ = $2;
 848                   }
 849                 ;
 850
 851 insn_call       : OP_CALL linkreg COMMA labelref {
 852                         struct instruction *insn = xmalloc(sizeof(struct instruction));
 853                         struct operlist *ol = xmalloc(sizeof(struct operlist));
 854                         struct operand *oper_lr = xmalloc(sizeof(struct operand));
 855                         struct operand *oper_zero = xmalloc(sizeof(struct operand));
 856                         oper_zero->type = OPER_RAW;
 857                         oper_zero->u.raw = 0;
 858                         oper_lr->type = OPER_RAW;
 859                         oper_lr->u.raw = (unsigned long)$2;
 860                         ol->oper[0] = oper_lr;
 861                         ol->oper[1] = oper_zero;
 862                         ol->oper[2] = $4;
 863                         insn->op = OP_CALL;
 864                         insn->operands = ol;
 865                         $$ = insn;
 866                   }
 867                 ;
 868
 869 insn_ret        : OP_RET linkreg COMMA linkreg {
 870                         struct instruction *insn = xmalloc(sizeof(struct instruction));
 871                         struct operlist *ol = xmalloc(sizeof(struct operlist));
 872                         struct operand *oper_lr0 = xmalloc(sizeof(struct operand));
 873                         struct operand *oper_lr1 = xmalloc(sizeof(struct operand));
 874                         struct operand *oper_zero = xmalloc(sizeof(struct operand));
 875                         oper_zero->type = OPER_RAW;
 876                         oper_zero->u.raw = 0;
 877                         oper_lr0->type = OPER_RAW;
 878                         oper_lr0->u.raw = (unsigned long)$2;
 879                         oper_lr1->type = OPER_RAW;
 880                         oper_lr1->u.raw = (unsigned long)$4;
 881                         ol->oper[0] = oper_lr0;
 882                         ol->oper[1] = oper_zero;
 883                         ol->oper[2] = oper_lr1;
 884                         insn->op = OP_RET;
 885                         insn->operands = ol;
 886                         $$ = insn;
 887                   }
 888                 ;
 889
 890 insn_tkiph      : OP_TKIPH operlist_2 {
 891                         struct instruction *insn = xmalloc(sizeof(struct instruction));
 892                         struct operlist *ol = $2;
 893                         struct operand *flags = xmalloc(sizeof(struct operand));
 894                         struct immediate *imm = xmalloc(sizeof(struct immediate));
 895                         imm->imm = 0x1;
 896                         flags->type = OPER_IMM;
 897                         flags->u.imm = imm;
 898                         ol->oper[2] = ol->oper[1];
 899                         ol->oper[1] = flags;
 900                         insn->op = OP_TKIPH;
 901                         insn->operands = ol;
 902                         $$ = insn;
 903                   }
 904                 ;
 905
 906 insn_tkiphs     : OP_TKIPHS operlist_2 {
 907                         struct instruction *insn = xmalloc(sizeof(struct instruction));
 908                         struct operlist *ol = $2;
 909                         struct operand *flags = xmalloc(sizeof(struct operand));
 910                         struct immediate *imm = xmalloc(sizeof(struct immediate));
 911                         imm->imm = 0x1 | 0x2;
 912                         flags->type = OPER_IMM;
 913                         flags->u.imm = imm;
 914                         ol->oper[2] = ol->oper[1];
 915                         ol->oper[1] = flags;
 916                         insn->op = OP_TKIPH;
 917                         insn->operands = ol;
 918                         $$ = insn;
 919                   }
 920                 ;
 921
 922 insn_tkipl      : OP_TKIPL operlist_2 {
 923                         struct instruction *insn = xmalloc(sizeof(struct instruction));
 924                         struct operlist *ol = $2;
 925                         struct operand *flags = xmalloc(sizeof(struct operand));
 926                         struct immediate *imm = xmalloc(sizeof(struct immediate));
 927                         imm->imm = 0x0;
 928                         flags->type = OPER_IMM;
 929                         flags->u.imm = imm;
 930                         ol->oper[2] = ol->oper[1];
 931                         ol->oper[1] = flags;
 932                         insn->op = OP_TKIPH;
 933                         insn->operands = ol;
 934                         $$ = insn;
 935                   }
 936                 ;
 937
 938 insn_tkipls     : OP_TKIPLS operlist_2 {
 939                         struct instruction *insn = xmalloc(sizeof(struct instruction));
 940                         struct operlist *ol = $2;
 941                         struct operand *flags = xmalloc(sizeof(struct operand));
 942                         struct immediate *imm = xmalloc(sizeof(struct immediate));
 943                         imm->imm = 0x0 | 0x2;
 944                         flags->type = OPER_IMM;
 945                         flags->u.imm = imm;
 946                         ol->oper[2] = ol->oper[1];
 947                         ol->oper[1] = flags;
 948                         insn->op = OP_TKIPH;
 949                         insn->operands = ol;
 950                         $$ = insn;
 951                   }
 952                 ;
 953
 954 insn_nap        : OP_NAP {
 955                         struct instruction *insn = xmalloc(sizeof(struct instruction));
 956                         struct operlist *ol = xmalloc(sizeof(struct operlist));
 957                         struct operand *regop = xmalloc(sizeof(struct operand));
 958                         struct operand *zeroop = xmalloc(sizeof(struct operand));
 959                         struct registr *r0 = xmalloc(sizeof(struct registr));
 960                         r0->type = GPR;
 961                         r0->nr = 0;
 962                         regop->type = OPER_REG;
 963                         regop->u.reg = r0;
 964                         zeroop->type = OPER_RAW;
 965                         zeroop->u.raw = 0x000;
 966                         ol->oper[0] = regop;
 967                         ol->oper[1] = regop;
 968                         ol->oper[2] = zeroop;
 969                         insn->op = OP_NAP;
 970                         insn->operands = ol;
 971                         $$ = insn;
 972                   }
 973                 ;
 974
 975 insn_raw        : raw_code operlist_3 {
 976                         struct instruction *insn = xmalloc(sizeof(struct instruction));
 977                         insn->op = RAW_CODE;
 978                         insn->operands = $2;
 979                         insn->opcode = (unsigned long)$1;
 980                         $$ = insn;
 981                   }
 982                 ;
 983
 984 raw_code        : RAW_CODE {
 985                         yytext++; /* skip @ */
 986                         $$ = (void *)(unsigned long)strtoul(yytext, NULL, 16);
 987                   }
 988                 ;
 989
 990 extended_operlist : decnum COMMA decnum COMMA operand COMMA operand COMMA operand {
 991                         struct operlist *ol = xmalloc(sizeof(struct operlist));
 992                         struct operand *mask_oper = xmalloc(sizeof(struct operand));
 993                         struct operand *shift_oper = xmalloc(sizeof(struct operand));
 994                         mask_oper->type = OPER_RAW;
 995                         mask_oper->u.raw = (unsigned long)$1;
 996                         shift_oper->type = OPER_RAW;
 997                         shift_oper->u.raw = (unsigned long)$3;
 998                         ol->oper[0] = mask_oper;
 999                         ol->oper[1] = shift_oper;
1000                         ol->oper[2] = $5;
1001                         ol->oper[3] = $7;
1002                         ol->oper[4] = store_oper_sanity($9);
1003                         $$ = ol;
1004                   }
1005                 ;
1006
1007 external_jump_operands : imm COMMA operand COMMA operand COMMA labelref {
1008                         struct operlist *ol = xmalloc(sizeof(struct operlist));
1009                         struct operand *cond = xmalloc(sizeof(struct operand));
1010                         cond->type = OPER_IMM;
1011                         cond->u.imm = $1;
1012                         ol->oper[0] = cond;
1013                         ol->oper[1] = $3;
1014                         ol->oper[2] = $5;
1015                         ol->oper[3] = $7;
1016                         $$ = ol;
1017                   }
1018                 ;
1019
1020 operlist_2      : operand COMMA operand {
1021                         struct operlist *ol = xmalloc(sizeof(struct operlist));
1022                         ol->oper[0] = $1;
1023                         ol->oper[1] = store_oper_sanity($3);
1024                         $$ = ol;
1025                   }
1026                 ;
1027
1028 operlist_3      : operand COMMA operand COMMA operand {
1029                         struct operlist *ol = xmalloc(sizeof(struct operlist));
1030                         ol->oper[0] = $1;
1031                         ol->oper[1] = $3;
1032                         ol->oper[2] = store_oper_sanity($5);
1033                         $$ = ol;
1034                   }
1035                 ;
1036
1037 operand         : reg {
1038                         struct operand *oper = xmalloc(sizeof(struct operand));
1039                         oper->type = OPER_REG;
1040                         oper->u.reg = $1;
1041                         $$ = oper;
1042                   }
1043                 | mem {
1044                         struct operand *oper = xmalloc(sizeof(struct operand));
1045                         oper->type = OPER_MEM;
1046                         oper->u.mem = $1;
1047                         $$ = oper;
1048                   }
1049                 | raw_code {
1050                         struct operand *oper = xmalloc(sizeof(struct operand));
1051                         oper->type = OPER_RAW;
1052                         oper->u.raw = (unsigned long)$1;
1053                         $$ = oper;
1054                   }
1055                 | imm {
1056                         struct operand *oper = xmalloc(sizeof(struct operand));
1057                         oper->type = OPER_IMM;
1058                         oper->u.imm = $1;
1059                         $$ = oper;
1060                   }
1061                 | labelref {
1062                         $$ = $1;
1063                   }
1064                 ;
1065
1066 reg             : GPR regnr {
1067                         struct registr *reg = xmalloc(sizeof(struct registr));
1068                         reg->type = GPR;
1069                         reg->nr = (unsigned long)$2;
1070                         $$ = reg;
1071                   }
1072                 | SPR {
1073                         struct registr *reg = xmalloc(sizeof(struct registr));
1074                         reg->type = SPR;
1075                         yytext += 3; /* skip "spr" */
1076                         reg->nr = strtoul(yytext, NULL, 16);
1077                         $$ = reg;
1078                   }
1079                 | OFFR regnr {
1080                         struct registr *reg = xmalloc(sizeof(struct registr));
1081                         reg->type = OFFR;
1082                         reg->nr = (unsigned long)$2;
1083                         $$ = reg;
1084                   }
1085                 ;
1086
1087 mem             : BRACK_OPEN imm BRACK_CLOSE {
1088                         struct memory *mem = xmalloc(sizeof(struct memory));
1089                         struct immediate *offset_imm = $2;
1090                         mem->type = MEM_DIRECT;
1091                         mem->offset = offset_imm->imm;
1092                         free(offset_imm);
1093                         $$ = mem;
1094                   }
1095                 | BRACK_OPEN imm COMMA OFFR regnr BRACK_CLOSE {
1096                         struct memory *mem = xmalloc(sizeof(struct memory));
1097                         struct immediate *offset_imm = $2;
1098                         mem->type = MEM_INDIRECT;
1099                         mem->offset = offset_imm->imm;
1100                         free(offset_imm);
1101                         mem->offr_nr = (unsigned long)$5;
1102                         $$ = mem;
1103                   }
1104                 ;
1105
1106 imm             : hexnum_decnum {
1107                         struct immediate *imm = xmalloc(sizeof(struct immediate));
1108                         imm->imm = (unsigned long)$1;
1109                         $$ = imm;
1110                   }
1111                 | complex_imm {
1112                         struct immediate *imm = xmalloc(sizeof(struct immediate));
1113                         imm->imm = (unsigned long)$1;
1114                         $$ = imm;
1115                   }
1116                 ;
1117
1118 complex_imm     : PAREN_OPEN complex_imm_arg complex_imm_oper complex_imm_arg PAREN_CLOSE {
1119                         unsigned long a = (unsigned long)$2;
1120                         unsigned long b = (unsigned long)$4;
1121                         unsigned long operation = (unsigned long)$3;
1122                         unsigned long res = 31337;
1123                         switch (operation) {
1124                         case PLUS:
1125                                 res = a + b;
1126                                 break;
1127                         case MINUS:
1128                                 res = a - b;
1129                                 break;
1130                         case MULTIPLY:
1131                                 res = a * b;
1132                                 break;
1133                         case DIVIDE:
1134                                 res = a / b;
1135                                 break;
1136                         case BITW_OR:
1137                                 res = a | b;
1138                                 break;
1139                         case BITW_AND:
1140                                 res = a & b;
1141                                 break;
1142                         case BITW_XOR:
1143                                 res = a ^ b;
1144                                 break;
1145                         case LEFTSHIFT:
1146                                 res = a << b;
1147                                 break;
1148                         case RIGHTSHIFT:
1149                                 res = a >> b;
1150                                 break;
1151                         default:
1152                                 yyerror("Internal parser BUG. complex_imm oper unknown");
1153                         }
1154                         $$ = (void *)res;
1155                   }
1156                 | PAREN_OPEN complex_imm PAREN_CLOSE {
1157                         $$ = $2;
1158                   }
1159                 | PAREN_OPEN BITW_NOT complex_imm PAREN_CLOSE {
1160                         unsigned long n = (unsigned long)$3;
1161                         n = ~n;
1162                         $$ = (void *)n;
1163                   }
1164                 | PAREN_OPEN complex_imm_const PAREN_CLOSE {
1165                         $$ = $2;
1166                   }
1167                 ;
1168
1169 complex_imm_oper : PLUS {
1170                         $$ = (void *)(unsigned long)PLUS;
1171                   }
1172                 | MINUS {
1173                         $$ = (void *)(unsigned long)MINUS;
1174                   }
1175                 | MULTIPLY {
1176                         $$ = (void *)(unsigned long)MULTIPLY;
1177                   }
1178                 | DIVIDE {
1179                         $$ = (void *)(unsigned long)DIVIDE;
1180                   }
1181                 | BITW_OR {
1182                         $$ = (void *)(unsigned long)BITW_OR;
1183                   }
1184                 | BITW_AND {
1185                         $$ = (void *)(unsigned long)BITW_AND;
1186                   }
1187                 | BITW_XOR {
1188                         $$ = (void *)(unsigned long)BITW_XOR;
1189                   }
1190                 | LEFTSHIFT {
1191                         $$ = (void *)(unsigned long)LEFTSHIFT;
1192                   }
1193                 | RIGHTSHIFT {
1194                         $$ = (void *)(unsigned long)RIGHTSHIFT;
1195                   }
1196                 ;
1197
1198 complex_imm_arg : complex_imm_const {
1199                         $$ = $1;
1200                   }
1201                 | complex_imm {
1202                         $$ = $1;
1203                   }
1204                 ;
1205
1206 complex_imm_const : hexnum_decnum {
1207                         $$ = $1;
1208                   }
1209                 | BITW_NOT hexnum_decnum {
1210                         unsigned long n = (unsigned long)$2;
1211                         n = ~n;
1212                         $$ = (void *)n;
1213                   }
1214                 ;
1215
1216 hexnum          : HEXNUM {
1217                         while (yytext[0] != 'x') {
1218                                 if (yytext[0] == '\0')
1219                                         yyerror("Internal HEXNUM parser error");
1220                                 yytext++;
1221                         }
1222                         yytext++;
1223                         $$ = (void *)(unsigned long)strtoul(yytext, NULL, 16);
1224                   }
1225                 ;
1226
1227 decnum          : DECNUM {
1228                         $$ = (void *)(unsigned long)strtol(yytext, NULL, 10);
1229                   }
1230                 ;
1231
1232 hexnum_decnum   : hexnum {
1233                         $$ = $1;
1234                   }
1235                 | decnum {
1236                         $$ = $1;
1237                   }
1238                 ;
1239
1240 labelref        : identifier {
1241                         struct operand *oper = xmalloc(sizeof(struct operand));
1242                         struct label *label = xmalloc(sizeof(struct label));
1243                         label->name = $1;
1244                         label->direction = LABELREF_ABSOLUTE;
1245                         oper->type = OPER_LABEL;
1246                         oper->u.label = label;
1247                         $$ = oper;
1248                   }
1249                 | identifier MINUS {
1250                         struct operand *oper = xmalloc(sizeof(struct operand));
1251                         struct label *label = xmalloc(sizeof(struct label));
1252                         label->name = $1;
1253                         label->direction = LABELREF_RELATIVE_BACK;
1254                         oper->type = OPER_LABEL;
1255                         oper->u.label = label;
1256                         $$ = oper;
1257                   }
1258                 | identifier PLUS {
1259                         struct operand *oper = xmalloc(sizeof(struct operand));
1260                         struct label *label = xmalloc(sizeof(struct label));
1261                         label->name = $1;
1262                         label->direction = LABELREF_RELATIVE_FORWARD;
1263                         oper->type = OPER_LABEL;
1264                         oper->u.label = label;
1265                         $$ = oper;
1266                   }
1267                 ;
1268
1269 regnr           : DECNUM {
1270                         $$ = (void *)(unsigned long)strtoul(yytext, NULL, 10);
1271                   }
1272                 ;
1273
1274 identifier      : IDENT {
1275                         $$ = xstrdup(yytext);
1276                   }
1277                 ;
1278
1279 %%
1280
1281 int section = SECTION_TEXT; /* default to .text section */
1282 struct initvals_sect *cur_initvals_sect;
1283
1284 void yyerror(char *str)
1285 {
1286         unsigned int i;
1287
1288         fprintf(stderr,
1289                 "Parser ERROR (file \"%s\", line %u, col %u):\n",
1290                 cur_lineinfo.file,
1291                 cur_lineinfo.lineno,
1292                 cur_lineinfo.column);
1293         fprintf(stderr, "%s\n", cur_lineinfo.linecopy);
1294         for (i = 0; i < cur_lineinfo.column - 1; i++)
1295                 fprintf(stderr, " ");
1296         fprintf(stderr, "^\n");
1297         fprintf(stderr, "%s\n", str);
1298         exit(1);
1299 }
1300
1301 static struct operand * store_oper_sanity(struct operand *oper)
1302 {
1303         if (oper->type == OPER_IMM &&
1304             oper->u.imm->imm != 0) {
1305                 yyerror("Only 0x000 Immediate is allowed for "
1306                         "Output operands");
1307         }
1308         return oper;
1309 }