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