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 static void assembler_assertion_failed(void);
  32
  33 /* The current .section */
  34 extern int section;
  35 /* Pointer to the current initvals section data structure. */
  36 extern struct initvals_sect *cur_initvals_sect;
  37
  38 %}
  39
  40 %token SECTION_TEXT SECTION_IVALS
  41
  42 %token ASM_ARCH ASM_START ASM_ASSERT SPR GPR OFFR LR COMMA SEMICOLON BRACK_OPEN BRACK_CLOSE PAREN_OPEN PAREN_CLOSE HEXNUM DECNUM ARCH_NEWWORLD ARCH_OLDWORLD LABEL IDENT LABELREF
  43
  44 %token EQUAL NOT_EQUAL LOGICAL_OR LOGICAL_AND PLUS MINUS MULTIPLY DIVIDE BITW_OR BITW_AND BITW_XOR BITW_NOT LEFTSHIFT RIGHTSHIFT
  45
  46 %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
  47
  48 %token IVAL_MMIO16 IVAL_MMIO32 IVAL_PHY IVAL_RADIO IVAL_SHM16 IVAL_SHM32
  49
  50 %start line
  51
  52 %%
  53
  54 line    : line_terminator {
  55                 /* empty */
  56           }
  57         | line statement line_terminator {
  58                 struct statement *s = $2;
  59                 if (s) {
  60                         if (section != SECTION_TEXT)
  61                                 yyerror("Microcode text instruction in non .text section");
  62                         memcpy(&s->info, &cur_lineinfo, sizeof(struct lineinfo));
  63                         list_add_tail(&s->list, &infile.sl);
  64                 }
  65           }
  66         | line section_switch line_terminator {
  67           }
  68         | line ivals_write line_terminator {
  69                 struct initval_op *io = $2;
  70                 if (section != SECTION_IVALS)
  71                         yyerror("InitVals write in non .initvals section");
  72                 memcpy(&io->info, &cur_lineinfo, sizeof(struct lineinfo));
  73                 INIT_LIST_HEAD(&io->list);
  74                 list_add_tail(&io->list, &cur_initvals_sect->ops);
  75           }
  76         ;
  77
  78 /* Allow terminating lines with the ";" char */
  79 line_terminator : /* Nothing */
  80                 | SEMICOLON line_terminator
  81                 ;
  82
  83 section_switch  : SECTION_TEXT {
  84                         section = SECTION_TEXT;
  85                   }
  86                 | SECTION_IVALS PAREN_OPEN identifier PAREN_CLOSE {
  87                         const char *sectname = $3;
  88                         struct initvals_sect *s;
  89                         cur_initvals_sect = NULL;
  90                         /* Search if there already is a section by that name. */
  91                         list_for_each_entry(s, &infile.ivals, list) {
  92                                 if (strcmp(sectname, s->name) == 0)
  93                                         cur_initvals_sect = s;
  94                         }
  95                         if (!cur_initvals_sect) {
  96                                 /* Not found, create a new one. */
  97                                 s = xmalloc(sizeof(struct initvals_sect));
  98                                 s->name = sectname;
  99                                 INIT_LIST_HEAD(&s->ops);
 100                                 INIT_LIST_HEAD(&s->list);
 101                                 list_add_tail(&s->list, &infile.ivals);
 102                                 cur_initvals_sect = s;
 103                         }
 104                         section = SECTION_IVALS;
 105                   }
 106                 ;
 107
 108 ivals_write     : IVAL_MMIO16 imm_value COMMA imm_value {
 109                         struct initval_op *iop = xmalloc(sizeof(struct initval_op));
 110                         iop->type = IVAL_W_MMIO16;
 111                         iop->args[0] = (unsigned int)(unsigned long)$2;
 112                         iop->args[1] = (unsigned int)(unsigned long)$4;
 113                         $$ = iop;
 114                   }
 115                 | IVAL_MMIO32 imm_value COMMA imm_value {
 116                         struct initval_op *iop = xmalloc(sizeof(struct initval_op));
 117                         iop->type = IVAL_W_MMIO32;
 118                         iop->args[0] = (unsigned int)(unsigned long)$2;
 119                         iop->args[1] = (unsigned int)(unsigned long)$4;
 120                         $$ = iop;
 121                   }
 122                 | IVAL_PHY imm_value COMMA imm_value {
 123                         struct initval_op *iop = xmalloc(sizeof(struct initval_op));
 124                         iop->type = IVAL_W_PHY;
 125                         iop->args[0] = (unsigned int)(unsigned long)$2;
 126                         iop->args[1] = (unsigned int)(unsigned long)$4;
 127                         $$ = iop;
 128                   }
 129                 | IVAL_RADIO imm_value COMMA imm_value {
 130                         struct initval_op *iop = xmalloc(sizeof(struct initval_op));
 131                         iop->type = IVAL_W_RADIO;
 132                         iop->args[0] = (unsigned int)(unsigned long)$2;
 133                         iop->args[1] = (unsigned int)(unsigned long)$4;
 134                         $$ = iop;
 135                   }
 136                 | IVAL_SHM16 imm_value COMMA imm_value COMMA imm_value {
 137                         struct initval_op *iop = xmalloc(sizeof(struct initval_op));
 138                         iop->type = IVAL_W_SHM16;
 139                         iop->args[0] = (unsigned int)(unsigned long)$2;
 140                         iop->args[1] = (unsigned int)(unsigned long)$4;
 141                         iop->args[2] = (unsigned int)(unsigned long)$6;
 142                         $$ = iop;
 143                   }
 144                 | IVAL_SHM32 imm_value COMMA imm_value COMMA imm_value {
 145                         struct initval_op *iop = xmalloc(sizeof(struct initval_op));
 146                         iop->type = IVAL_W_SHM32;
 147                         iop->args[0] = (unsigned int)(unsigned long)$2;
 148                         iop->args[1] = (unsigned int)(unsigned long)$4;
 149                         iop->args[2] = (unsigned int)(unsigned long)$6;
 150                         $$ = iop;
 151                   }
 152                 ;
 153
 154 statement       : asmdir {
 155                         struct asmdir *ad = $1;
 156                         if (ad) {
 157                                 struct statement *s = xmalloc(sizeof(struct statement));
 158                                 INIT_LIST_HEAD(&s->list);
 159                                 s->type = STMT_ASMDIR;
 160                                 s->u.asmdir = $1;
 161                                 $$ = s;
 162                         } else
 163                                 $$ = NULL;
 164                   }
 165                 | label {
 166                         struct statement *s = xmalloc(sizeof(struct statement));
 167                         INIT_LIST_HEAD(&s->list);
 168                         s->type = STMT_LABEL;
 169                         s->u.label = $1;
 170                         $$ = s;
 171                   }
 172                 | insn_add {
 173                         struct statement *s = xmalloc(sizeof(struct statement));
 174                         INIT_LIST_HEAD(&s->list);
 175                         s->type = STMT_INSN;
 176                         s->u.insn = $1;
 177                         $$ = s;
 178                   }
 179                 | insn_addsc {
 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                         $$ = s;
 185                   }
 186                 | insn_addc {
 187                         struct statement *s = xmalloc(sizeof(struct statement));
 188                         INIT_LIST_HEAD(&s->list);
 189                         s->type = STMT_INSN;
 190                         s->u.insn = $1;
 191                         $$ = s;
 192                   }
 193                 | insn_addscc {
 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                         $$ = s;
 199                   }
 200                 | insn_sub {
 201                         struct statement *s = xmalloc(sizeof(struct statement));
 202                         INIT_LIST_HEAD(&s->list);
 203                         s->type = STMT_INSN;
 204                         s->u.insn = $1;
 205                         $$ = s;
 206                   }
 207                 | insn_subsc {
 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                         $$ = s;
 213                   }
 214                 | insn_subc {
 215                         struct statement *s = xmalloc(sizeof(struct statement));
 216                         INIT_LIST_HEAD(&s->list);
 217                         s->type = STMT_INSN;
 218                         s->u.insn = $1;
 219                         $$ = s;
 220                   }
 221                 | insn_subscc {
 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                         $$ = s;
 227                   }
 228                 | insn_sra {
 229                         struct statement *s = xmalloc(sizeof(struct statement));
 230                         INIT_LIST_HEAD(&s->list);
 231                         s->type = STMT_INSN;
 232                         s->u.insn = $1;
 233                         $$ = s;
 234                   }
 235                 | insn_or {
 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                         $$ = s;
 241                   }
 242                 | insn_and {
 243                         struct statement *s = xmalloc(sizeof(struct statement));
 244                         INIT_LIST_HEAD(&s->list);
 245                         s->type = STMT_INSN;
 246                         s->u.insn = $1;
 247                         $$ = s;
 248                   }
 249                 | insn_xor {
 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                         $$ = s;
 255                   }
 256                 | insn_sr {
 257                         struct statement *s = xmalloc(sizeof(struct statement));
 258                         INIT_LIST_HEAD(&s->list);
 259                         s->type = STMT_INSN;
 260                         s->u.insn = $1;
 261                         $$ = s;
 262                   }
 263                 | insn_srx {
 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                         $$ = s;
 269                   }
 270                 | insn_sl {
 271                         struct statement *s = xmalloc(sizeof(struct statement));
 272                         INIT_LIST_HEAD(&s->list);
 273                         s->type = STMT_INSN;
 274                         s->u.insn = $1;
 275                         $$ = s;
 276                   }
 277                 | insn_rl {
 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                         $$ = s;
 283                   }
 284                 | insn_rr {
 285                         struct statement *s = xmalloc(sizeof(struct statement));
 286                         INIT_LIST_HEAD(&s->list);
 287                         s->type = STMT_INSN;
 288                         s->u.insn = $1;
 289                         $$ = s;
 290                   }
 291                 | insn_nand {
 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                         $$ = s;
 297                   }
 298                 | insn_orx {
 299                         struct statement *s = xmalloc(sizeof(struct statement));
 300                         INIT_LIST_HEAD(&s->list);
 301                         s->type = STMT_INSN;
 302                         s->u.insn = $1;
 303                         $$ = s;
 304                   }
 305                 | insn_mov {
 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                         $$ = s;
 311                   }
 312                 | insn_jmp {
 313                         struct statement *s = xmalloc(sizeof(struct statement));
 314                         INIT_LIST_HEAD(&s->list);
 315                         s->type = STMT_INSN;
 316                         s->u.insn = $1;
 317                         $$ = s;
 318                   }
 319                 | insn_jand {
 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                         $$ = s;
 325                   }
 326                 | insn_jnand {
 327                         struct statement *s = xmalloc(sizeof(struct statement));
 328                         INIT_LIST_HEAD(&s->list);
 329                         s->type = STMT_INSN;
 330                         s->u.insn = $1;
 331                         $$ = s;
 332                   }
 333                 | insn_js {
 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                         $$ = s;
 339                   }
 340                 | insn_jns {
 341                         struct statement *s = xmalloc(sizeof(struct statement));
 342                         INIT_LIST_HEAD(&s->list);
 343                         s->type = STMT_INSN;
 344                         s->u.insn = $1;
 345                         $$ = s;
 346                   }
 347                 | insn_je {
 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                         $$ = s;
 353                   }
 354                 | insn_jne {
 355                         struct statement *s = xmalloc(sizeof(struct statement));
 356                         INIT_LIST_HEAD(&s->list);
 357                         s->type = STMT_INSN;
 358                         s->u.insn = $1;
 359                         $$ = s;
 360                   }
 361                 | insn_jls {
 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                         $$ = s;
 367                   }
 368                 | insn_jges {
 369                         struct statement *s = xmalloc(sizeof(struct statement));
 370                         INIT_LIST_HEAD(&s->list);
 371                         s->type = STMT_INSN;
 372                         s->u.insn = $1;
 373                         $$ = s;
 374                   }
 375                 | insn_jgs {
 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                         $$ = s;
 381                   }
 382                 | insn_jles {
 383                         struct statement *s = xmalloc(sizeof(struct statement));
 384                         INIT_LIST_HEAD(&s->list);
 385                         s->type = STMT_INSN;
 386                         s->u.insn = $1;
 387                         $$ = s;
 388                   }
 389                 | insn_jl {
 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                         $$ = s;
 395                   }
 396                 | insn_jge {
 397                         struct statement *s = xmalloc(sizeof(struct statement));
 398                         INIT_LIST_HEAD(&s->list);
 399                         s->type = STMT_INSN;
 400                         s->u.insn = $1;
 401                         $$ = s;
 402                   }
 403                 | insn_jg {
 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                         $$ = s;
 409                   }
 410                 | insn_jle {
 411                         struct statement *s = xmalloc(sizeof(struct statement));
 412                         INIT_LIST_HEAD(&s->list);
 413                         s->type = STMT_INSN;
 414                         s->u.insn = $1;
 415                         $$ = s;
 416                   }
 417                 | insn_jzx {
 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                         $$ = s;
 423                   }
 424                 | insn_jnzx {
 425                         struct statement *s = xmalloc(sizeof(struct statement));
 426                         INIT_LIST_HEAD(&s->list);
 427                         s->type = STMT_INSN;
 428                         s->u.insn = $1;
 429                         $$ = s;
 430                   }
 431                 | insn_jext {
 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                         $$ = s;
 437                   }
 438                 | insn_jnext {
 439                         struct statement *s = xmalloc(sizeof(struct statement));
 440                         INIT_LIST_HEAD(&s->list);
 441                         s->type = STMT_INSN;
 442                         s->u.insn = $1;
 443                         $$ = s;
 444                   }
 445                 | insn_call {
 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                         $$ = s;
 451                   }
 452                 | insn_ret {
 453                         struct statement *s = xmalloc(sizeof(struct statement));
 454                         INIT_LIST_HEAD(&s->list);
 455                         s->type = STMT_INSN;
 456                         s->u.insn = $1;
 457                         $$ = s;
 458                   }
 459                 | insn_tkiph {
 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                         $$ = s;
 465                   }
 466                 | insn_tkiphs {
 467                         struct statement *s = xmalloc(sizeof(struct statement));
 468                         INIT_LIST_HEAD(&s->list);
 469                         s->type = STMT_INSN;
 470                         s->u.insn = $1;
 471                         $$ = s;
 472                   }
 473                 | insn_tkipl {
 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                         $$ = s;
 479                   }
 480                 | insn_tkipls {
 481                         struct statement *s = xmalloc(sizeof(struct statement));
 482                         INIT_LIST_HEAD(&s->list);
 483                         s->type = STMT_INSN;
 484                         s->u.insn = $1;
 485                         $$ = s;
 486                   }
 487                 | insn_nap {
 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                         $$ = s;
 493                   }
 494                 | insn_raw {
 495                         struct statement *s = xmalloc(sizeof(struct statement));
 496                         INIT_LIST_HEAD(&s->list);
 497                         s->type = STMT_INSN;
 498                         s->u.insn = $1;
 499                         $$ = s;
 500                   }
 501                 ;
 502
 503 /* ASM directives */
 504 asmdir          : ASM_ARCH hexnum_decnum {
 505                         struct asmdir *ad = xmalloc(sizeof(struct asmdir));
 506                         ad->type = ADIR_ARCH;
 507                         ad->u.arch = (unsigned int)(unsigned long)$2;
 508                         $$ = ad;
 509                   }
 510                 | ASM_START identifier {
 511                         struct asmdir *ad = xmalloc(sizeof(struct asmdir));
 512                         struct label *label = xmalloc(sizeof(struct label));
 513                         label->name = $2;
 514                         label->direction = LABELREF_ABSOLUTE;
 515                         ad->type = ADIR_START;
 516                         ad->u.start = label;
 517                         $$ = ad;
 518                   }
 519                 | ASM_ASSERT assertion {
 520                         unsigned int ok = (unsigned int)(unsigned long)$2;
 521                         if (!ok)
 522                                 assembler_assertion_failed();
 523                         $$ = NULL;
 524                   }
 525                 ;
 526
 527 assertion       : PAREN_OPEN assert_expr PAREN_CLOSE {
 528                         $$ = $2;
 529                   }
 530                 | PAREN_OPEN assertion LOGICAL_OR assertion PAREN_CLOSE {
 531                         unsigned int a = (unsigned int)(unsigned long)$2;
 532                         unsigned int b = (unsigned int)(unsigned long)$4;
 533                         unsigned int result = (a || b);
 534                         $$ = (void *)(unsigned long)result;
 535                   }
 536                 | PAREN_OPEN assertion LOGICAL_AND assertion PAREN_CLOSE {
 537                         unsigned int a = (unsigned int)(unsigned long)$2;
 538                         unsigned int b = (unsigned int)(unsigned long)$4;
 539                         unsigned int result = (a && b);
 540                         $$ = (void *)(unsigned long)result;
 541                   }
 542                 ;
 543
 544 assert_expr     : imm_value EQUAL imm_value {
 545                         unsigned int a = (unsigned int)(unsigned long)$1;
 546                         unsigned int b = (unsigned int)(unsigned long)$3;
 547                         unsigned int result = (a == b);
 548                         $$ = (void *)(unsigned long)result;
 549                   }
 550                 | imm_value NOT_EQUAL imm_value {
 551                         unsigned int a = (unsigned int)(unsigned long)$1;
 552                         unsigned int b = (unsigned int)(unsigned long)$3;
 553                         unsigned int result = (a != b);
 554                         $$ = (void *)(unsigned long)result;
 555                   }
 556                 ;
 557
 558 label           : LABEL {
 559                         struct label *label = xmalloc(sizeof(struct label));
 560                         char *l;
 561                         l = xstrdup(yytext);
 562                         l[strlen(l) - 1] = '\0';
 563                         label->name = l;
 564                         $$ = label;
 565                   }
 566                 ;
 567
 568 /* add */
 569 insn_add        : OP_ADD operlist_3 {
 570                         struct instruction *insn = xmalloc(sizeof(struct instruction));
 571                         insn->op = OP_ADD;
 572                         insn->operands = $2;
 573                         $$ = insn;
 574                   }
 575                 ;
 576
 577 /* add. */
 578 insn_addsc      : OP_ADDSC operlist_3 {
 579                         struct instruction *insn = xmalloc(sizeof(struct instruction));
 580                         insn->op = OP_ADDSC;
 581                         insn->operands = $2;
 582                         $$ = insn;
 583                   }
 584                 ;
 585
 586 /* addc */
 587 insn_addc       : OP_ADDC operlist_3 {
 588                         struct instruction *insn = xmalloc(sizeof(struct instruction));
 589                         insn->op = OP_ADDC;
 590                         insn->operands = $2;
 591                         $$ = insn;
 592                   }
 593                 ;
 594
 595 /* addc. */
 596 insn_addscc     : OP_ADDSCC operlist_3 {
 597                         struct instruction *insn = xmalloc(sizeof(struct instruction));
 598                         insn->op = OP_ADDSCC;
 599                         insn->operands = $2;
 600                         $$ = insn;
 601                   }
 602                 ;
 603
 604 /* sub */
 605 insn_sub        : OP_SUB operlist_3 {
 606                         struct instruction *insn = xmalloc(sizeof(struct instruction));
 607                         insn->op = OP_SUB;
 608                         insn->operands = $2;
 609                         $$ = insn;
 610                   }
 611                 ;
 612
 613 /* sub. */
 614 insn_subsc      : OP_SUBSC operlist_3 {
 615                         struct instruction *insn = xmalloc(sizeof(struct instruction));
 616                         insn->op = OP_SUBSC;
 617                         insn->operands = $2;
 618                         $$ = insn;
 619                   }
 620                 ;
 621
 622 /* subc */
 623 insn_subc       : OP_SUBC operlist_3 {
 624                         struct instruction *insn = xmalloc(sizeof(struct instruction));
 625                         insn->op = OP_SUBC;
 626                         insn->operands = $2;
 627                         $$ = insn;
 628                   }
 629                 ;
 630
 631 /* subc. */
 632 insn_subscc     : OP_SUBSCC operlist_3 {
 633                         struct instruction *insn = xmalloc(sizeof(struct instruction));
 634                         insn->op = OP_SUBSCC;
 635                         insn->operands = $2;
 636                         $$ = insn;
 637                   }
 638                 ;
 639
 640 insn_sra        : OP_SRA operlist_3 {
 641                         struct instruction *insn = xmalloc(sizeof(struct instruction));
 642                         insn->op = OP_SRA;
 643                         insn->operands = $2;
 644                         $$ = insn;
 645                   }
 646                 ;
 647
 648 insn_or         : OP_OR operlist_3 {
 649                         struct instruction *insn = xmalloc(sizeof(struct instruction));
 650                         insn->op = OP_OR;
 651                         insn->operands = $2;
 652                         $$ = insn;
 653                   }
 654                 ;
 655
 656 insn_and        : OP_AND operlist_3 {
 657                         struct instruction *insn = xmalloc(sizeof(struct instruction));
 658                         insn->op = OP_AND;
 659                         insn->operands = $2;
 660                         $$ = insn;
 661                   }
 662                 ;
 663
 664 insn_xor        : OP_XOR operlist_3 {
 665                         struct instruction *insn = xmalloc(sizeof(struct instruction));
 666                         insn->op = OP_XOR;
 667                         insn->operands = $2;
 668                         $$ = insn;
 669                   }
 670                 ;
 671
 672 insn_sr         : OP_SR operlist_3 {
 673                         struct instruction *insn = xmalloc(sizeof(struct instruction));
 674                         insn->op = OP_SR;
 675                         insn->operands = $2;
 676                         $$ = insn;
 677                   }
 678                 ;
 679
 680 insn_srx        : OP_SRX extended_operlist {
 681                         struct instruction *insn = xmalloc(sizeof(struct instruction));
 682                         insn->op = OP_SRX;
 683                         insn->operands = $2;
 684                         $$ = insn;
 685                   }
 686                 ;
 687
 688 insn_sl         : OP_SL operlist_3 {
 689                         struct instruction *insn = xmalloc(sizeof(struct instruction));
 690                         insn->op = OP_SL;
 691                         insn->operands = $2;
 692                         $$ = insn;
 693                   }
 694                 ;
 695
 696 insn_rl         : OP_RL operlist_3 {
 697                         struct instruction *insn = xmalloc(sizeof(struct instruction));
 698                         insn->op = OP_RL;
 699                         insn->operands = $2;
 700                         $$ = insn;
 701                   }
 702                 ;
 703
 704 insn_rr         : OP_RR operlist_3 {
 705                         struct instruction *insn = xmalloc(sizeof(struct instruction));
 706                         insn->op = OP_RR;
 707                         insn->operands = $2;
 708                         $$ = insn;
 709                   }
 710                 ;
 711
 712 insn_nand       : OP_NAND operlist_3 {
 713                         struct instruction *insn = xmalloc(sizeof(struct instruction));
 714                         insn->op = OP_NAND;
 715                         insn->operands = $2;
 716                         $$ = insn;
 717                   }
 718                 ;
 719
 720 insn_orx        : OP_ORX extended_operlist {
 721                         struct instruction *insn = xmalloc(sizeof(struct instruction));
 722                         insn->op = OP_ORX;
 723                         insn->operands = $2;
 724                         $$ = insn;
 725                   }
 726                 ;
 727
 728 insn_mov        : OP_MOV operlist_2 {
 729                         struct instruction *insn = xmalloc(sizeof(struct instruction));
 730                         insn->op = OP_MOV;
 731                         insn->operands = $2;
 732                         $$ = insn;
 733                   }
 734                 ;
 735
 736 insn_jmp        : OP_JMP labelref {
 737                         struct instruction *insn = xmalloc(sizeof(struct instruction));
 738                         struct operlist *ol = xmalloc(sizeof(struct operlist));
 739                         ol->oper[0] = $2;
 740                         insn->op = OP_JMP;
 741                         insn->operands = ol;
 742                         $$ = insn;
 743                   }
 744                 ;
 745
 746 insn_jand       : OP_JAND operlist_3 {
 747                         struct instruction *insn = xmalloc(sizeof(struct instruction));
 748                         insn->op = OP_JAND;
 749                         insn->operands = $2;
 750                         $$ = insn;
 751                   }
 752                 ;
 753
 754 insn_jnand      : OP_JNAND operlist_3 {
 755                         struct instruction *insn = xmalloc(sizeof(struct instruction));
 756                         insn->op = OP_JNAND;
 757                         insn->operands = $2;
 758                         $$ = insn;
 759                   }
 760                 ;
 761
 762 insn_js         : OP_JS operlist_3 {
 763                         struct instruction *insn = xmalloc(sizeof(struct instruction));
 764                         insn->op = OP_JS;
 765                         insn->operands = $2;
 766                         $$ = insn;
 767                   }
 768                 ;
 769
 770 insn_jns        : OP_JNS operlist_3 {
 771                         struct instruction *insn = xmalloc(sizeof(struct instruction));
 772                         insn->op = OP_JNS;
 773                         insn->operands = $2;
 774                         $$ = insn;
 775                   }
 776                 ;
 777
 778 insn_je         : OP_JE operlist_3 {
 779                         struct instruction *insn = xmalloc(sizeof(struct instruction));
 780                         insn->op = OP_JE;
 781                         insn->operands = $2;
 782                         $$ = insn;
 783                   }
 784                 ;
 785
 786 insn_jne        : OP_JNE operlist_3 {
 787                         struct instruction *insn = xmalloc(sizeof(struct instruction));
 788                         insn->op = OP_JNE;
 789                         insn->operands = $2;
 790                         $$ = insn;
 791                   }
 792                 ;
 793
 794 insn_jls        : OP_JLS operlist_3 {
 795                         struct instruction *insn = xmalloc(sizeof(struct instruction));
 796                         insn->op = OP_JLS;
 797                         insn->operands = $2;
 798                         $$ = insn;
 799                   }
 800                 ;
 801
 802 insn_jges       : OP_JGES operlist_3 {
 803                         struct instruction *insn = xmalloc(sizeof(struct instruction));
 804                         insn->op = OP_JGES;
 805                         insn->operands = $2;
 806                         $$ = insn;
 807                   }
 808                 ;
 809
 810 insn_jgs        : OP_JGS operlist_3 {
 811                         struct instruction *insn = xmalloc(sizeof(struct instruction));
 812                         insn->op = OP_JGS;
 813                         insn->operands = $2;
 814                         $$ = insn;
 815                   }
 816                 ;
 817
 818 insn_jles       : OP_JLES operlist_3 {
 819                         struct instruction *insn = xmalloc(sizeof(struct instruction));
 820                         insn->op = OP_JLES;
 821                         insn->operands = $2;
 822                         $$ = insn;
 823                   }
 824                 ;
 825
 826 insn_jl         : OP_JL operlist_3 {
 827                         struct instruction *insn = xmalloc(sizeof(struct instruction));
 828                         insn->op = OP_JL;
 829                         insn->operands = $2;
 830                         $$ = insn;
 831                   }
 832                 ;
 833
 834 insn_jge        : OP_JGE operlist_3 {
 835                         struct instruction *insn = xmalloc(sizeof(struct instruction));
 836                         insn->op = OP_JGE;
 837                         insn->operands = $2;
 838                         $$ = insn;
 839                   }
 840                 ;
 841
 842 insn_jg         : OP_JG operlist_3 {
 843                         struct instruction *insn = xmalloc(sizeof(struct instruction));
 844                         insn->op = OP_JG;
 845                         insn->operands = $2;
 846                         $$ = insn;
 847                   }
 848                 ;
 849
 850 insn_jle        : OP_JLE operlist_3 {
 851                         struct instruction *insn = xmalloc(sizeof(struct instruction));
 852                         insn->op = OP_JLE;
 853                         insn->operands = $2;
 854                         $$ = insn;
 855                   }
 856                 ;
 857
 858 insn_jzx        : OP_JZX extended_operlist {
 859                         struct instruction *insn = xmalloc(sizeof(struct instruction));
 860                         insn->op = OP_JZX;
 861                         insn->operands = $2;
 862                         $$ = insn;
 863                   }
 864                 ;
 865
 866 insn_jnzx       : OP_JNZX extended_operlist {
 867                         struct instruction *insn = xmalloc(sizeof(struct instruction));
 868                         insn->op = OP_JNZX;
 869                         insn->operands = $2;
 870                         $$ = insn;
 871                   }
 872                 ;
 873
 874 insn_jext       : OP_JEXT external_jump_operands {
 875                         struct instruction *insn = xmalloc(sizeof(struct instruction));
 876                         insn->op = OP_JEXT;
 877                         insn->operands = $2;
 878                         $$ = insn;
 879                   }
 880                 ;
 881
 882 insn_jnext      : OP_JNEXT external_jump_operands {
 883                         struct instruction *insn = xmalloc(sizeof(struct instruction));
 884                         insn->op = OP_JNEXT;
 885                         insn->operands = $2;
 886                         $$ = insn;
 887                   }
 888                 ;
 889
 890 linkreg         : LR regnr {
 891                         $$ = $2;
 892                   }
 893                 ;
 894
 895 insn_call       : OP_CALL linkreg COMMA labelref {
 896                         struct instruction *insn = xmalloc(sizeof(struct instruction));
 897                         struct operlist *ol = xmalloc(sizeof(struct operlist));
 898                         struct operand *oper_lr = xmalloc(sizeof(struct operand));
 899                         struct operand *oper_zero = xmalloc(sizeof(struct operand));
 900                         oper_zero->type = OPER_RAW;
 901                         oper_zero->u.raw = 0;
 902                         oper_lr->type = OPER_RAW;
 903                         oper_lr->u.raw = (unsigned long)$2;
 904                         ol->oper[0] = oper_lr;
 905                         ol->oper[1] = oper_zero;
 906                         ol->oper[2] = $4;
 907                         insn->op = OP_CALL;
 908                         insn->operands = ol;
 909                         $$ = insn;
 910                   }
 911                 ;
 912
 913 insn_ret        : OP_RET linkreg COMMA linkreg {
 914                         struct instruction *insn = xmalloc(sizeof(struct instruction));
 915                         struct operlist *ol = xmalloc(sizeof(struct operlist));
 916                         struct operand *oper_lr0 = xmalloc(sizeof(struct operand));
 917                         struct operand *oper_lr1 = xmalloc(sizeof(struct operand));
 918                         struct operand *oper_zero = xmalloc(sizeof(struct operand));
 919                         oper_zero->type = OPER_RAW;
 920                         oper_zero->u.raw = 0;
 921                         oper_lr0->type = OPER_RAW;
 922                         oper_lr0->u.raw = (unsigned long)$2;
 923                         oper_lr1->type = OPER_RAW;
 924                         oper_lr1->u.raw = (unsigned long)$4;
 925                         ol->oper[0] = oper_lr0;
 926                         ol->oper[1] = oper_zero;
 927                         ol->oper[2] = oper_lr1;
 928                         insn->op = OP_RET;
 929                         insn->operands = ol;
 930                         $$ = insn;
 931                   }
 932                 ;
 933
 934 insn_tkiph      : OP_TKIPH operlist_2 {
 935                         struct instruction *insn = xmalloc(sizeof(struct instruction));
 936                         struct operlist *ol = $2;
 937                         struct operand *flags = xmalloc(sizeof(struct operand));
 938                         struct immediate *imm = xmalloc(sizeof(struct immediate));
 939                         imm->imm = 0x1;
 940                         flags->type = OPER_IMM;
 941                         flags->u.imm = imm;
 942                         ol->oper[2] = ol->oper[1];
 943                         ol->oper[1] = flags;
 944                         insn->op = OP_TKIPH;
 945                         insn->operands = ol;
 946                         $$ = insn;
 947                   }
 948                 ;
 949
 950 insn_tkiphs     : OP_TKIPHS operlist_2 {
 951                         struct instruction *insn = xmalloc(sizeof(struct instruction));
 952                         struct operlist *ol = $2;
 953                         struct operand *flags = xmalloc(sizeof(struct operand));
 954                         struct immediate *imm = xmalloc(sizeof(struct immediate));
 955                         imm->imm = 0x1 | 0x2;
 956                         flags->type = OPER_IMM;
 957                         flags->u.imm = imm;
 958                         ol->oper[2] = ol->oper[1];
 959                         ol->oper[1] = flags;
 960                         insn->op = OP_TKIPH;
 961                         insn->operands = ol;
 962                         $$ = insn;
 963                   }
 964                 ;
 965
 966 insn_tkipl      : OP_TKIPL operlist_2 {
 967                         struct instruction *insn = xmalloc(sizeof(struct instruction));
 968                         struct operlist *ol = $2;
 969                         struct operand *flags = xmalloc(sizeof(struct operand));
 970                         struct immediate *imm = xmalloc(sizeof(struct immediate));
 971                         imm->imm = 0x0;
 972                         flags->type = OPER_IMM;
 973                         flags->u.imm = imm;
 974                         ol->oper[2] = ol->oper[1];
 975                         ol->oper[1] = flags;
 976                         insn->op = OP_TKIPH;
 977                         insn->operands = ol;
 978                         $$ = insn;
 979                   }
 980                 ;
 981
 982 insn_tkipls     : OP_TKIPLS operlist_2 {
 983                         struct instruction *insn = xmalloc(sizeof(struct instruction));
 984                         struct operlist *ol = $2;
 985                         struct operand *flags = xmalloc(sizeof(struct operand));
 986                         struct immediate *imm = xmalloc(sizeof(struct immediate));
 987                         imm->imm = 0x0 | 0x2;
 988                         flags->type = OPER_IMM;
 989                         flags->u.imm = imm;
 990                         ol->oper[2] = ol->oper[1];
 991                         ol->oper[1] = flags;
 992                         insn->op = OP_TKIPH;
 993                         insn->operands = ol;
 994                         $$ = insn;
 995                   }
 996                 ;
 997
 998 insn_nap        : OP_NAP {
 999                         struct instruction *insn = xmalloc(sizeof(struct instruction));
1000                         struct operlist *ol = xmalloc(sizeof(struct operlist));
1001                         struct operand *regop = xmalloc(sizeof(struct operand));
1002                         struct operand *zeroop = xmalloc(sizeof(struct operand));
1003                         struct registr *r0 = xmalloc(sizeof(struct registr));
1004                         r0->type = GPR;
1005                         r0->nr = 0;
1006                         regop->type = OPER_REG;
1007                         regop->u.reg = r0;
1008                         zeroop->type = OPER_RAW;
1009                         zeroop->u.raw = 0x000;
1010                         ol->oper[0] = regop;
1011                         ol->oper[1] = regop;
1012                         ol->oper[2] = zeroop;
1013                         insn->op = OP_NAP;
1014                         insn->operands = ol;
1015                         $$ = insn;
1016                   }
1017                 ;
1018
1019 insn_raw        : raw_code operlist_3 {
1020                         struct instruction *insn = xmalloc(sizeof(struct instruction));
1021                         insn->op = RAW_CODE;
1022                         insn->operands = $2;
1023                         insn->opcode = (unsigned long)$1;
1024                         $$ = insn;
1025                   }
1026                 ;
1027
1028 raw_code        : RAW_CODE {
1029                         yytext++; /* skip @ */
1030                         $$ = (void *)(unsigned long)strtoul(yytext, NULL, 16);
1031                   }
1032                 ;
1033
1034 extended_operlist : imm_value COMMA imm_value COMMA operand COMMA operand COMMA operand {
1035                         struct operlist *ol = xmalloc(sizeof(struct operlist));
1036                         struct operand *mask_oper = xmalloc(sizeof(struct operand));
1037                         struct operand *shift_oper = xmalloc(sizeof(struct operand));
1038                         mask_oper->type = OPER_RAW;
1039                         mask_oper->u.raw = (unsigned long)$1;
1040                         shift_oper->type = OPER_RAW;
1041                         shift_oper->u.raw = (unsigned long)$3;
1042                         ol->oper[0] = mask_oper;
1043                         ol->oper[1] = shift_oper;
1044                         ol->oper[2] = $5;
1045                         ol->oper[3] = $7;
1046                         ol->oper[4] = store_oper_sanity($9);
1047                         $$ = ol;
1048                   }
1049                 ;
1050
1051 external_jump_operands : imm COMMA labelref {
1052                         struct operlist *ol = xmalloc(sizeof(struct operlist));
1053                         struct operand *cond = xmalloc(sizeof(struct operand));
1054                         cond->type = OPER_IMM;
1055                         cond->u.imm = $1;
1056                         ol->oper[0] = cond;
1057                         ol->oper[1] = $3;
1058                         $$ = ol;
1059                   }
1060                 ;
1061
1062 operlist_2      : operand COMMA operand {
1063                         struct operlist *ol = xmalloc(sizeof(struct operlist));
1064                         ol->oper[0] = $1;
1065                         ol->oper[1] = store_oper_sanity($3);
1066                         $$ = ol;
1067                   }
1068                 ;
1069
1070 operlist_3      : operand COMMA operand COMMA operand {
1071                         struct operlist *ol = xmalloc(sizeof(struct operlist));
1072                         ol->oper[0] = $1;
1073                         ol->oper[1] = $3;
1074                         ol->oper[2] = store_oper_sanity($5);
1075                         $$ = ol;
1076                   }
1077                 ;
1078
1079 operand         : reg {
1080                         struct operand *oper = xmalloc(sizeof(struct operand));
1081                         oper->type = OPER_REG;
1082                         oper->u.reg = $1;
1083                         $$ = oper;
1084                   }
1085                 | mem {
1086                         struct operand *oper = xmalloc(sizeof(struct operand));
1087                         oper->type = OPER_MEM;
1088                         oper->u.mem = $1;
1089                         $$ = oper;
1090                   }
1091                 | raw_code {
1092                         struct operand *oper = xmalloc(sizeof(struct operand));
1093                         oper->type = OPER_RAW;
1094                         oper->u.raw = (unsigned long)$1;
1095                         $$ = oper;
1096                   }
1097                 | imm {
1098                         struct operand *oper = xmalloc(sizeof(struct operand));
1099                         oper->type = OPER_IMM;
1100                         oper->u.imm = $1;
1101                         $$ = oper;
1102                   }
1103                 | labelref {
1104                         $$ = $1;
1105                   }
1106                 ;
1107
1108 reg             : GPR regnr {
1109                         struct registr *reg = xmalloc(sizeof(struct registr));
1110                         reg->type = GPR;
1111                         reg->nr = (unsigned long)$2;
1112                         $$ = reg;
1113                   }
1114                 | SPR {
1115                         struct registr *reg = xmalloc(sizeof(struct registr));
1116                         reg->type = SPR;
1117                         yytext += 3; /* skip "spr" */
1118                         reg->nr = strtoul(yytext, NULL, 16);
1119                         $$ = reg;
1120                   }
1121                 | OFFR regnr {
1122                         struct registr *reg = xmalloc(sizeof(struct registr));
1123                         reg->type = OFFR;
1124                         reg->nr = (unsigned long)$2;
1125                         $$ = reg;
1126                   }
1127                 ;
1128
1129 mem             : BRACK_OPEN imm BRACK_CLOSE {
1130                         struct memory *mem = xmalloc(sizeof(struct memory));
1131                         struct immediate *offset_imm = $2;
1132                         mem->type = MEM_DIRECT;
1133                         mem->offset = offset_imm->imm;
1134                         free(offset_imm);
1135                         $$ = mem;
1136                   }
1137                 | BRACK_OPEN imm COMMA OFFR regnr BRACK_CLOSE {
1138                         struct memory *mem = xmalloc(sizeof(struct memory));
1139                         struct immediate *offset_imm = $2;
1140                         mem->type = MEM_INDIRECT;
1141                         mem->offset = offset_imm->imm;
1142                         free(offset_imm);
1143                         mem->offr_nr = (unsigned long)$5;
1144                         $$ = mem;
1145                   }
1146                 ;
1147
1148 imm             : imm_value {
1149                         struct immediate *imm = xmalloc(sizeof(struct immediate));
1150                         imm->imm = (unsigned long)$1;
1151                         $$ = imm;
1152                   }
1153                 ;
1154
1155 imm_value       : hexnum_decnum {
1156                         $$ = $1;
1157                   }
1158                 | complex_imm {
1159                         $$ = $1;
1160                   }
1161                 ;
1162
1163 complex_imm     : PAREN_OPEN complex_imm_arg complex_imm_oper complex_imm_arg PAREN_CLOSE {
1164                         unsigned long a = (unsigned long)$2;
1165                         unsigned long b = (unsigned long)$4;
1166                         unsigned long operation = (unsigned long)$3;
1167                         unsigned long res = 31337;
1168                         switch (operation) {
1169                         case PLUS:
1170                                 res = a + b;
1171                                 break;
1172                         case MINUS:
1173                                 res = a - b;
1174                                 break;
1175                         case MULTIPLY:
1176                                 res = a * b;
1177                                 break;
1178                         case DIVIDE:
1179                                 res = a / b;
1180                                 break;
1181                         case BITW_OR:
1182                                 res = a | b;
1183                                 break;
1184                         case BITW_AND:
1185                                 res = a & b;
1186                                 break;
1187                         case BITW_XOR:
1188                                 res = a ^ b;
1189                                 break;
1190                         case LEFTSHIFT:
1191                                 res = a << b;
1192                                 break;
1193                         case RIGHTSHIFT:
1194                                 res = a >> b;
1195                                 break;
1196                         default:
1197                                 yyerror("Internal parser BUG. complex_imm oper unknown");
1198                         }
1199                         $$ = (void *)res;
1200                   }
1201                 | PAREN_OPEN complex_imm PAREN_CLOSE {
1202                         $$ = $2;
1203                   }
1204                 | PAREN_OPEN BITW_NOT complex_imm PAREN_CLOSE {
1205                         unsigned long n = (unsigned long)$3;
1206                         n = ~n;
1207                         $$ = (void *)n;
1208                   }
1209                 | PAREN_OPEN complex_imm_const PAREN_CLOSE {
1210                         $$ = $2;
1211                   }
1212                 ;
1213
1214 complex_imm_oper : PLUS {
1215                         $$ = (void *)(unsigned long)PLUS;
1216                   }
1217                 | MINUS {
1218                         $$ = (void *)(unsigned long)MINUS;
1219                   }
1220                 | MULTIPLY {
1221                         $$ = (void *)(unsigned long)MULTIPLY;
1222                   }
1223                 | DIVIDE {
1224                         $$ = (void *)(unsigned long)DIVIDE;
1225                   }
1226                 | BITW_OR {
1227                         $$ = (void *)(unsigned long)BITW_OR;
1228                   }
1229                 | BITW_AND {
1230                         $$ = (void *)(unsigned long)BITW_AND;
1231                   }
1232                 | BITW_XOR {
1233                         $$ = (void *)(unsigned long)BITW_XOR;
1234                   }
1235                 | LEFTSHIFT {
1236                         $$ = (void *)(unsigned long)LEFTSHIFT;
1237                   }
1238                 | RIGHTSHIFT {
1239                         $$ = (void *)(unsigned long)RIGHTSHIFT;
1240                   }
1241                 ;
1242
1243 complex_imm_arg : complex_imm_const {
1244                         $$ = $1;
1245                   }
1246                 | complex_imm {
1247                         $$ = $1;
1248                   }
1249                 ;
1250
1251 complex_imm_const : hexnum_decnum {
1252                         $$ = $1;
1253                   }
1254                 | BITW_NOT hexnum_decnum {
1255                         unsigned long n = (unsigned long)$2;
1256                         n = ~n;
1257                         $$ = (void *)n;
1258                   }
1259                 ;
1260
1261 hexnum          : HEXNUM {
1262                         while (yytext[0] != 'x') {
1263                                 if (yytext[0] == '\0')
1264                                         yyerror("Internal HEXNUM parser error");
1265                                 yytext++;
1266                         }
1267                         yytext++;
1268                         $$ = (void *)(unsigned long)strtoul(yytext, NULL, 16);
1269                   }
1270                 ;
1271
1272 decnum          : DECNUM {
1273                         $$ = (void *)(unsigned long)strtol(yytext, NULL, 10);
1274                   }
1275                 ;
1276
1277 hexnum_decnum   : hexnum {
1278                         $$ = $1;
1279                   }
1280                 | decnum {
1281                         $$ = $1;
1282                   }
1283                 ;
1284
1285 labelref        : identifier {
1286                         struct operand *oper = xmalloc(sizeof(struct operand));
1287                         struct label *label = xmalloc(sizeof(struct label));
1288                         label->name = $1;
1289                         label->direction = LABELREF_ABSOLUTE;
1290                         oper->type = OPER_LABEL;
1291                         oper->u.label = label;
1292                         $$ = oper;
1293                   }
1294                 | identifier MINUS {
1295                         struct operand *oper = xmalloc(sizeof(struct operand));
1296                         struct label *label = xmalloc(sizeof(struct label));
1297                         label->name = $1;
1298                         label->direction = LABELREF_RELATIVE_BACK;
1299                         oper->type = OPER_LABEL;
1300                         oper->u.label = label;
1301                         $$ = oper;
1302                   }
1303                 | identifier PLUS {
1304                         struct operand *oper = xmalloc(sizeof(struct operand));
1305                         struct label *label = xmalloc(sizeof(struct label));
1306                         label->name = $1;
1307                         label->direction = LABELREF_RELATIVE_FORWARD;
1308                         oper->type = OPER_LABEL;
1309                         oper->u.label = label;
1310                         $$ = oper;
1311                   }
1312                 ;
1313
1314 regnr           : DECNUM {
1315                         $$ = (void *)(unsigned long)strtoul(yytext, NULL, 10);
1316                   }
1317                 ;
1318
1319 identifier      : IDENT {
1320                         $$ = xstrdup(yytext);
1321                   }
1322                 ;
1323
1324 %%
1325
1326 int section = SECTION_TEXT; /* default to .text section */
1327 struct initvals_sect *cur_initvals_sect;
1328
1329 void yyerror(char *str)
1330 {
1331         unsigned int i;
1332
1333         fprintf(stderr,
1334                 "Parser ERROR (file \"%s\", line %u, col %u):\n",
1335                 cur_lineinfo.file,
1336                 cur_lineinfo.lineno,
1337                 cur_lineinfo.column);
1338         fprintf(stderr, "%s\n", cur_lineinfo.linecopy);
1339         for (i = 0; i < cur_lineinfo.column - 1; i++)
1340                 fprintf(stderr, " ");
1341         fprintf(stderr, "^\n");
1342         fprintf(stderr, "%s\n", str);
1343         exit(1);
1344 }
1345
1346 static struct operand * store_oper_sanity(struct operand *oper)
1347 {
1348         if (oper->type == OPER_IMM &&
1349             oper->u.imm->imm != 0) {
1350                 yyerror("Only 0x000 Immediate is allowed for "
1351                         "Output operands");
1352         }
1353         return oper;
1354 }
1355
1356 static void assembler_assertion_failed(void)
1357 {
1358         yyerror("Assembler %assert failed");
1359 }