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_CALLS OP_RET OP_RETS 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 IVAL_TRAM
  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                 | IVAL_TRAM imm_value COMMA imm_value {
 153                         struct initval_op *iop = xmalloc(sizeof(struct initval_op));
 154                         iop->type = IVAL_W_TRAM;
 155                         iop->args[0] = (unsigned int)(unsigned long)$2;
 156                         iop->args[1] = (unsigned int)(unsigned long)$4;
 157                         $$ = iop;
 158                   }
 159                 ;
 160
 161 statement       : asmdir {
 162                         struct asmdir *ad = $1;
 163                         if (ad) {
 164                                 struct statement *s = xmalloc(sizeof(struct statement));
 165                                 INIT_LIST_HEAD(&s->list);
 166                                 s->type = STMT_ASMDIR;
 167                                 s->u.asmdir = $1;
 168                                 $$ = s;
 169                         } else
 170                                 $$ = NULL;
 171                   }
 172                 | label {
 173                         struct statement *s = xmalloc(sizeof(struct statement));
 174                         INIT_LIST_HEAD(&s->list);
 175                         s->type = STMT_LABEL;
 176                         s->u.label = $1;
 177                         $$ = s;
 178                   }
 179                 | insn_add {
 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                         $$ = s;
 185                   }
 186                 | insn_addsc {
 187                         struct statement *s = xmalloc(sizeof(struct statement));
 188                         INIT_LIST_HEAD(&s->list);
 189                         s->type = STMT_INSN;
 190                         s->u.insn = $1;
 191                         $$ = s;
 192                   }
 193                 | insn_addc {
 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                         $$ = s;
 199                   }
 200                 | insn_addscc {
 201                         struct statement *s = xmalloc(sizeof(struct statement));
 202                         INIT_LIST_HEAD(&s->list);
 203                         s->type = STMT_INSN;
 204                         s->u.insn = $1;
 205                         $$ = s;
 206                   }
 207                 | insn_sub {
 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                         $$ = s;
 213                   }
 214                 | insn_subsc {
 215                         struct statement *s = xmalloc(sizeof(struct statement));
 216                         INIT_LIST_HEAD(&s->list);
 217                         s->type = STMT_INSN;
 218                         s->u.insn = $1;
 219                         $$ = s;
 220                   }
 221                 | insn_subc {
 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                         $$ = s;
 227                   }
 228                 | insn_subscc {
 229                         struct statement *s = xmalloc(sizeof(struct statement));
 230                         INIT_LIST_HEAD(&s->list);
 231                         s->type = STMT_INSN;
 232                         s->u.insn = $1;
 233                         $$ = s;
 234                   }
 235                 | insn_sra {
 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                         $$ = s;
 241                   }
 242                 | insn_or {
 243                         struct statement *s = xmalloc(sizeof(struct statement));
 244                         INIT_LIST_HEAD(&s->list);
 245                         s->type = STMT_INSN;
 246                         s->u.insn = $1;
 247                         $$ = s;
 248                   }
 249                 | insn_and {
 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                         $$ = s;
 255                   }
 256                 | insn_xor {
 257                         struct statement *s = xmalloc(sizeof(struct statement));
 258                         INIT_LIST_HEAD(&s->list);
 259                         s->type = STMT_INSN;
 260                         s->u.insn = $1;
 261                         $$ = s;
 262                   }
 263                 | insn_sr {
 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                         $$ = s;
 269                   }
 270                 | insn_srx {
 271                         struct statement *s = xmalloc(sizeof(struct statement));
 272                         INIT_LIST_HEAD(&s->list);
 273                         s->type = STMT_INSN;
 274                         s->u.insn = $1;
 275                         $$ = s;
 276                   }
 277                 | insn_sl {
 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                         $$ = s;
 283                   }
 284                 | insn_rl {
 285                         struct statement *s = xmalloc(sizeof(struct statement));
 286                         INIT_LIST_HEAD(&s->list);
 287                         s->type = STMT_INSN;
 288                         s->u.insn = $1;
 289                         $$ = s;
 290                   }
 291                 | insn_rr {
 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                         $$ = s;
 297                   }
 298                 | insn_nand {
 299                         struct statement *s = xmalloc(sizeof(struct statement));
 300                         INIT_LIST_HEAD(&s->list);
 301                         s->type = STMT_INSN;
 302                         s->u.insn = $1;
 303                         $$ = s;
 304                   }
 305                 | insn_orx {
 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                         $$ = s;
 311                   }
 312                 | insn_mov {
 313                         struct statement *s = xmalloc(sizeof(struct statement));
 314                         INIT_LIST_HEAD(&s->list);
 315                         s->type = STMT_INSN;
 316                         s->u.insn = $1;
 317                         $$ = s;
 318                   }
 319                 | insn_jmp {
 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                         $$ = s;
 325                   }
 326                 | insn_jand {
 327                         struct statement *s = xmalloc(sizeof(struct statement));
 328                         INIT_LIST_HEAD(&s->list);
 329                         s->type = STMT_INSN;
 330                         s->u.insn = $1;
 331                         $$ = s;
 332                   }
 333                 | insn_jnand {
 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                         $$ = s;
 339                   }
 340                 | insn_js {
 341                         struct statement *s = xmalloc(sizeof(struct statement));
 342                         INIT_LIST_HEAD(&s->list);
 343                         s->type = STMT_INSN;
 344                         s->u.insn = $1;
 345                         $$ = s;
 346                   }
 347                 | insn_jns {
 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                         $$ = s;
 353                   }
 354                 | insn_je {
 355                         struct statement *s = xmalloc(sizeof(struct statement));
 356                         INIT_LIST_HEAD(&s->list);
 357                         s->type = STMT_INSN;
 358                         s->u.insn = $1;
 359                         $$ = s;
 360                   }
 361                 | insn_jne {
 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                         $$ = s;
 367                   }
 368                 | insn_jls {
 369                         struct statement *s = xmalloc(sizeof(struct statement));
 370                         INIT_LIST_HEAD(&s->list);
 371                         s->type = STMT_INSN;
 372                         s->u.insn = $1;
 373                         $$ = s;
 374                   }
 375                 | insn_jges {
 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                         $$ = s;
 381                   }
 382                 | insn_jgs {
 383                         struct statement *s = xmalloc(sizeof(struct statement));
 384                         INIT_LIST_HEAD(&s->list);
 385                         s->type = STMT_INSN;
 386                         s->u.insn = $1;
 387                         $$ = s;
 388                   }
 389                 | insn_jles {
 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                         $$ = s;
 395                   }
 396                 | insn_jl {
 397                         struct statement *s = xmalloc(sizeof(struct statement));
 398                         INIT_LIST_HEAD(&s->list);
 399                         s->type = STMT_INSN;
 400                         s->u.insn = $1;
 401                         $$ = s;
 402                   }
 403                 | insn_jge {
 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                         $$ = s;
 409                   }
 410                 | insn_jg {
 411                         struct statement *s = xmalloc(sizeof(struct statement));
 412                         INIT_LIST_HEAD(&s->list);
 413                         s->type = STMT_INSN;
 414                         s->u.insn = $1;
 415                         $$ = s;
 416                   }
 417                 | insn_jle {
 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                         $$ = s;
 423                   }
 424                 | insn_jzx {
 425                         struct statement *s = xmalloc(sizeof(struct statement));
 426                         INIT_LIST_HEAD(&s->list);
 427                         s->type = STMT_INSN;
 428                         s->u.insn = $1;
 429                         $$ = s;
 430                   }
 431                 | insn_jnzx {
 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                         $$ = s;
 437                   }
 438                 | insn_jext {
 439                         struct statement *s = xmalloc(sizeof(struct statement));
 440                         INIT_LIST_HEAD(&s->list);
 441                         s->type = STMT_INSN;
 442                         s->u.insn = $1;
 443                         $$ = s;
 444                   }
 445                 | insn_jnext {
 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                         $$ = s;
 451                   }
 452                 | insn_call {
 453                         struct statement *s = xmalloc(sizeof(struct statement));
 454                         INIT_LIST_HEAD(&s->list);
 455                         s->type = STMT_INSN;
 456                         s->u.insn = $1;
 457                         $$ = s;
 458                   }
 459                 | insn_calls {
 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                         $$ = s;
 465                   }
 466                 | insn_ret {
 467                         struct statement *s = xmalloc(sizeof(struct statement));
 468                         INIT_LIST_HEAD(&s->list);
 469                         s->type = STMT_INSN;
 470                         s->u.insn = $1;
 471                         $$ = s;
 472                   }
 473                 | insn_rets {
 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                         $$ = s;
 479                   }
 480                 | insn_tkiph {
 481                         struct statement *s = xmalloc(sizeof(struct statement));
 482                         INIT_LIST_HEAD(&s->list);
 483                         s->type = STMT_INSN;
 484                         s->u.insn = $1;
 485                         $$ = s;
 486                   }
 487                 | insn_tkiphs {
 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                         $$ = s;
 493                   }
 494                 | insn_tkipl {
 495                         struct statement *s = xmalloc(sizeof(struct statement));
 496                         INIT_LIST_HEAD(&s->list);
 497                         s->type = STMT_INSN;
 498                         s->u.insn = $1;
 499                         $$ = s;
 500                   }
 501                 | insn_tkipls {
 502                         struct statement *s = xmalloc(sizeof(struct statement));
 503                         INIT_LIST_HEAD(&s->list);
 504                         s->type = STMT_INSN;
 505                         s->u.insn = $1;
 506                         $$ = s;
 507                   }
 508                 | insn_nap {
 509                         struct statement *s = xmalloc(sizeof(struct statement));
 510                         INIT_LIST_HEAD(&s->list);
 511                         s->type = STMT_INSN;
 512                         s->u.insn = $1;
 513                         $$ = s;
 514                   }
 515                 | insn_raw {
 516                         struct statement *s = xmalloc(sizeof(struct statement));
 517                         INIT_LIST_HEAD(&s->list);
 518                         s->type = STMT_INSN;
 519                         s->u.insn = $1;
 520                         $$ = s;
 521                   }
 522                 ;
 523
 524 /* ASM directives */
 525 asmdir          : ASM_ARCH hexnum_decnum {
 526                         struct asmdir *ad = xmalloc(sizeof(struct asmdir));
 527                         ad->type = ADIR_ARCH;
 528                         ad->u.arch = (unsigned int)(unsigned long)$2;
 529                         $$ = ad;
 530                   }
 531                 | ASM_START identifier {
 532                         struct asmdir *ad = xmalloc(sizeof(struct asmdir));
 533                         struct label *label = xmalloc(sizeof(struct label));
 534                         label->name = $2;
 535                         label->direction = LABELREF_ABSOLUTE;
 536                         ad->type = ADIR_START;
 537                         ad->u.start = label;
 538                         $$ = ad;
 539                   }
 540                 | asm_assert {
 541                         $$ = NULL;
 542                   }
 543                 ;
 544
 545 asm_assert      : ASM_ASSERT assertion {
 546                         unsigned int ok = (unsigned int)(unsigned long)$2;
 547                         if (!ok)
 548                                 assembler_assertion_failed();
 549                         $$ = NULL;
 550                   }
 551                 ;
 552
 553 assertion       : PAREN_OPEN assert_expr PAREN_CLOSE {
 554                         $$ = $2;
 555                   }
 556                 | PAREN_OPEN assertion LOGICAL_OR assertion PAREN_CLOSE {
 557                         unsigned int a = (unsigned int)(unsigned long)$2;
 558                         unsigned int b = (unsigned int)(unsigned long)$4;
 559                         unsigned int result = (a || b);
 560                         $$ = (void *)(unsigned long)result;
 561                   }
 562                 | PAREN_OPEN assertion LOGICAL_AND assertion PAREN_CLOSE {
 563                         unsigned int a = (unsigned int)(unsigned long)$2;
 564                         unsigned int b = (unsigned int)(unsigned long)$4;
 565                         unsigned int result = (a && b);
 566                         $$ = (void *)(unsigned long)result;
 567                   }
 568                 ;
 569
 570 assert_expr     : imm_value EQUAL imm_value {
 571                         unsigned int a = (unsigned int)(unsigned long)$1;
 572                         unsigned int b = (unsigned int)(unsigned long)$3;
 573                         unsigned int result = (a == b);
 574                         $$ = (void *)(unsigned long)result;
 575                   }
 576                 | imm_value NOT_EQUAL imm_value {
 577                         unsigned int a = (unsigned int)(unsigned long)$1;
 578                         unsigned int b = (unsigned int)(unsigned long)$3;
 579                         unsigned int result = (a != b);
 580                         $$ = (void *)(unsigned long)result;
 581                   }
 582                 ;
 583
 584 label           : LABEL {
 585                         struct label *label = xmalloc(sizeof(struct label));
 586                         char *l;
 587                         l = xstrdup(yytext);
 588                         l[strlen(l) - 1] = '\0';
 589                         label->name = l;
 590                         $$ = label;
 591                   }
 592                 ;
 593
 594 /* add */
 595 insn_add        : OP_ADD operlist_3 {
 596                         struct instruction *insn = xmalloc(sizeof(struct instruction));
 597                         insn->op = OP_ADD;
 598                         insn->operands = $2;
 599                         $$ = insn;
 600                   }
 601                 ;
 602
 603 /* add. */
 604 insn_addsc      : OP_ADDSC operlist_3 {
 605                         struct instruction *insn = xmalloc(sizeof(struct instruction));
 606                         insn->op = OP_ADDSC;
 607                         insn->operands = $2;
 608                         $$ = insn;
 609                   }
 610                 ;
 611
 612 /* addc */
 613 insn_addc       : OP_ADDC operlist_3 {
 614                         struct instruction *insn = xmalloc(sizeof(struct instruction));
 615                         insn->op = OP_ADDC;
 616                         insn->operands = $2;
 617                         $$ = insn;
 618                   }
 619                 ;
 620
 621 /* addc. */
 622 insn_addscc     : OP_ADDSCC operlist_3 {
 623                         struct instruction *insn = xmalloc(sizeof(struct instruction));
 624                         insn->op = OP_ADDSCC;
 625                         insn->operands = $2;
 626                         $$ = insn;
 627                   }
 628                 ;
 629
 630 /* sub */
 631 insn_sub        : OP_SUB operlist_3 {
 632                         struct instruction *insn = xmalloc(sizeof(struct instruction));
 633                         insn->op = OP_SUB;
 634                         insn->operands = $2;
 635                         $$ = insn;
 636                   }
 637                 ;
 638
 639 /* sub. */
 640 insn_subsc      : OP_SUBSC operlist_3 {
 641                         struct instruction *insn = xmalloc(sizeof(struct instruction));
 642                         insn->op = OP_SUBSC;
 643                         insn->operands = $2;
 644                         $$ = insn;
 645                   }
 646                 ;
 647
 648 /* subc */
 649 insn_subc       : OP_SUBC operlist_3 {
 650                         struct instruction *insn = xmalloc(sizeof(struct instruction));
 651                         insn->op = OP_SUBC;
 652                         insn->operands = $2;
 653                         $$ = insn;
 654                   }
 655                 ;
 656
 657 /* subc. */
 658 insn_subscc     : OP_SUBSCC operlist_3 {
 659                         struct instruction *insn = xmalloc(sizeof(struct instruction));
 660                         insn->op = OP_SUBSCC;
 661                         insn->operands = $2;
 662                         $$ = insn;
 663                   }
 664                 ;
 665
 666 insn_sra        : OP_SRA operlist_3 {
 667                         struct instruction *insn = xmalloc(sizeof(struct instruction));
 668                         insn->op = OP_SRA;
 669                         insn->operands = $2;
 670                         $$ = insn;
 671                   }
 672                 ;
 673
 674 insn_or         : OP_OR operlist_3 {
 675                         struct instruction *insn = xmalloc(sizeof(struct instruction));
 676                         insn->op = OP_OR;
 677                         insn->operands = $2;
 678                         $$ = insn;
 679                   }
 680                 ;
 681
 682 insn_and        : OP_AND operlist_3 {
 683                         struct instruction *insn = xmalloc(sizeof(struct instruction));
 684                         insn->op = OP_AND;
 685                         insn->operands = $2;
 686                         $$ = insn;
 687                   }
 688                 ;
 689
 690 insn_xor        : OP_XOR operlist_3 {
 691                         struct instruction *insn = xmalloc(sizeof(struct instruction));
 692                         insn->op = OP_XOR;
 693                         insn->operands = $2;
 694                         $$ = insn;
 695                   }
 696                 ;
 697
 698 insn_sr         : OP_SR operlist_3 {
 699                         struct instruction *insn = xmalloc(sizeof(struct instruction));
 700                         insn->op = OP_SR;
 701                         insn->operands = $2;
 702                         $$ = insn;
 703                   }
 704                 ;
 705
 706 insn_srx        : OP_SRX extended_operlist {
 707                         struct instruction *insn = xmalloc(sizeof(struct instruction));
 708                         insn->op = OP_SRX;
 709                         insn->operands = $2;
 710                         $$ = insn;
 711                   }
 712                 ;
 713
 714 insn_sl         : OP_SL operlist_3 {
 715                         struct instruction *insn = xmalloc(sizeof(struct instruction));
 716                         insn->op = OP_SL;
 717                         insn->operands = $2;
 718                         $$ = insn;
 719                   }
 720                 ;
 721
 722 insn_rl         : OP_RL operlist_3 {
 723                         struct instruction *insn = xmalloc(sizeof(struct instruction));
 724                         insn->op = OP_RL;
 725                         insn->operands = $2;
 726                         $$ = insn;
 727                   }
 728                 ;
 729
 730 insn_rr         : OP_RR operlist_3 {
 731                         struct instruction *insn = xmalloc(sizeof(struct instruction));
 732                         insn->op = OP_RR;
 733                         insn->operands = $2;
 734                         $$ = insn;
 735                   }
 736                 ;
 737
 738 insn_nand       : OP_NAND operlist_3 {
 739                         struct instruction *insn = xmalloc(sizeof(struct instruction));
 740                         insn->op = OP_NAND;
 741                         insn->operands = $2;
 742                         $$ = insn;
 743                   }
 744                 ;
 745
 746 insn_orx        : OP_ORX extended_operlist {
 747                         struct instruction *insn = xmalloc(sizeof(struct instruction));
 748                         insn->op = OP_ORX;
 749                         insn->operands = $2;
 750                         $$ = insn;
 751                   }
 752                 ;
 753
 754 insn_mov        : OP_MOV operlist_2 {
 755                         struct instruction *insn = xmalloc(sizeof(struct instruction));
 756                         insn->op = OP_MOV;
 757                         insn->operands = $2;
 758                         $$ = insn;
 759                   }
 760                 ;
 761
 762 insn_jmp        : OP_JMP labelref {
 763                         struct instruction *insn = xmalloc(sizeof(struct instruction));
 764                         struct operlist *ol = xmalloc(sizeof(struct operlist));
 765                         ol->oper[0] = $2;
 766                         insn->op = OP_JMP;
 767                         insn->operands = ol;
 768                         $$ = insn;
 769                   }
 770                 ;
 771
 772 insn_jand       : OP_JAND operlist_3 {
 773                         struct instruction *insn = xmalloc(sizeof(struct instruction));
 774                         insn->op = OP_JAND;
 775                         insn->operands = $2;
 776                         $$ = insn;
 777                   }
 778                 ;
 779
 780 insn_jnand      : OP_JNAND operlist_3 {
 781                         struct instruction *insn = xmalloc(sizeof(struct instruction));
 782                         insn->op = OP_JNAND;
 783                         insn->operands = $2;
 784                         $$ = insn;
 785                   }
 786                 ;
 787
 788 insn_js         : OP_JS operlist_3 {
 789                         struct instruction *insn = xmalloc(sizeof(struct instruction));
 790                         insn->op = OP_JS;
 791                         insn->operands = $2;
 792                         $$ = insn;
 793                   }
 794                 ;
 795
 796 insn_jns        : OP_JNS operlist_3 {
 797                         struct instruction *insn = xmalloc(sizeof(struct instruction));
 798                         insn->op = OP_JNS;
 799                         insn->operands = $2;
 800                         $$ = insn;
 801                   }
 802                 ;
 803
 804 insn_je         : OP_JE operlist_3 {
 805                         struct instruction *insn = xmalloc(sizeof(struct instruction));
 806                         insn->op = OP_JE;
 807                         insn->operands = $2;
 808                         $$ = insn;
 809                   }
 810                 ;
 811
 812 insn_jne        : OP_JNE operlist_3 {
 813                         struct instruction *insn = xmalloc(sizeof(struct instruction));
 814                         insn->op = OP_JNE;
 815                         insn->operands = $2;
 816                         $$ = insn;
 817                   }
 818                 ;
 819
 820 insn_jls        : OP_JLS operlist_3 {
 821                         struct instruction *insn = xmalloc(sizeof(struct instruction));
 822                         insn->op = OP_JLS;
 823                         insn->operands = $2;
 824                         $$ = insn;
 825                   }
 826                 ;
 827
 828 insn_jges       : OP_JGES operlist_3 {
 829                         struct instruction *insn = xmalloc(sizeof(struct instruction));
 830                         insn->op = OP_JGES;
 831                         insn->operands = $2;
 832                         $$ = insn;
 833                   }
 834                 ;
 835
 836 insn_jgs        : OP_JGS operlist_3 {
 837                         struct instruction *insn = xmalloc(sizeof(struct instruction));
 838                         insn->op = OP_JGS;
 839                         insn->operands = $2;
 840                         $$ = insn;
 841                   }
 842                 ;
 843
 844 insn_jles       : OP_JLES operlist_3 {
 845                         struct instruction *insn = xmalloc(sizeof(struct instruction));
 846                         insn->op = OP_JLES;
 847                         insn->operands = $2;
 848                         $$ = insn;
 849                   }
 850                 ;
 851
 852 insn_jl         : OP_JL operlist_3 {
 853                         struct instruction *insn = xmalloc(sizeof(struct instruction));
 854                         insn->op = OP_JL;
 855                         insn->operands = $2;
 856                         $$ = insn;
 857                   }
 858                 ;
 859
 860 insn_jge        : OP_JGE operlist_3 {
 861                         struct instruction *insn = xmalloc(sizeof(struct instruction));
 862                         insn->op = OP_JGE;
 863                         insn->operands = $2;
 864                         $$ = insn;
 865                   }
 866                 ;
 867
 868 insn_jg         : OP_JG operlist_3 {
 869                         struct instruction *insn = xmalloc(sizeof(struct instruction));
 870                         insn->op = OP_JG;
 871                         insn->operands = $2;
 872                         $$ = insn;
 873                   }
 874                 ;
 875
 876 insn_jle        : OP_JLE operlist_3 {
 877                         struct instruction *insn = xmalloc(sizeof(struct instruction));
 878                         insn->op = OP_JLE;
 879                         insn->operands = $2;
 880                         $$ = insn;
 881                   }
 882                 ;
 883
 884 insn_jzx        : OP_JZX extended_operlist {
 885                         struct instruction *insn = xmalloc(sizeof(struct instruction));
 886                         insn->op = OP_JZX;
 887                         insn->operands = $2;
 888                         $$ = insn;
 889                   }
 890                 ;
 891
 892 insn_jnzx       : OP_JNZX extended_operlist {
 893                         struct instruction *insn = xmalloc(sizeof(struct instruction));
 894                         insn->op = OP_JNZX;
 895                         insn->operands = $2;
 896                         $$ = insn;
 897                   }
 898                 ;
 899
 900 insn_jext       : OP_JEXT external_jump_operands {
 901                         struct instruction *insn = xmalloc(sizeof(struct instruction));
 902                         insn->op = OP_JEXT;
 903                         insn->operands = $2;
 904                         $$ = insn;
 905                   }
 906                 ;
 907
 908 insn_jnext      : OP_JNEXT external_jump_operands {
 909                         struct instruction *insn = xmalloc(sizeof(struct instruction));
 910                         insn->op = OP_JNEXT;
 911                         insn->operands = $2;
 912                         $$ = insn;
 913                   }
 914                 ;
 915
 916 linkreg         : LR regnr {
 917                         $$ = $2;
 918                   }
 919                 ;
 920
 921 insn_call       : OP_CALL linkreg COMMA labelref {
 922                         struct instruction *insn = xmalloc(sizeof(struct instruction));
 923                         struct operlist *ol = xmalloc(sizeof(struct operlist));
 924                         struct operand *oper_lr = xmalloc(sizeof(struct operand));
 925                         struct operand *oper_zero = xmalloc(sizeof(struct operand));
 926                         oper_zero->type = OPER_RAW;
 927                         oper_zero->u.raw = 0;
 928                         oper_lr->type = OPER_RAW;
 929                         oper_lr->u.raw = (unsigned long)$2;
 930                         ol->oper[0] = oper_lr;
 931                         ol->oper[1] = oper_zero;
 932                         ol->oper[2] = $4;
 933                         insn->op = OP_CALL;
 934                         insn->operands = ol;
 935                         $$ = insn;
 936                   }
 937                 ;
 938
 939 insn_calls      :  OP_CALLS labelref {
 940                         struct instruction *insn = xmalloc(sizeof(struct instruction));
 941                         struct operlist *ol = xmalloc(sizeof(struct operlist));
 942                         struct operand *oper_r0 = xmalloc(sizeof(struct operand));
 943                         struct registr *r0 = xmalloc(sizeof(struct registr));
 944                         r0->type = GPR;
 945                         r0->nr = 0;
 946                         oper_r0->type = OPER_REG;
 947                         oper_r0->u.reg = r0;
 948                         ol->oper[0] = oper_r0;
 949                         ol->oper[1] = oper_r0;
 950                         ol->oper[2] = $2;
 951                         insn->op = OP_CALLS;
 952                         insn->operands = ol;
 953                         $$ = insn;
 954                   }
 955                 ;
 956
 957 insn_ret        : OP_RET linkreg COMMA linkreg {
 958                         struct instruction *insn = xmalloc(sizeof(struct instruction));
 959                         struct operlist *ol = xmalloc(sizeof(struct operlist));
 960                         struct operand *oper_lr0 = xmalloc(sizeof(struct operand));
 961                         struct operand *oper_lr1 = xmalloc(sizeof(struct operand));
 962                         struct operand *oper_zero = xmalloc(sizeof(struct operand));
 963                         oper_zero->type = OPER_RAW;
 964                         oper_zero->u.raw = 0;
 965                         oper_lr0->type = OPER_RAW;
 966                         oper_lr0->u.raw = (unsigned long)$2;
 967                         oper_lr1->type = OPER_RAW;
 968                         oper_lr1->u.raw = (unsigned long)$4;
 969                         ol->oper[0] = oper_lr0;
 970                         ol->oper[1] = oper_zero;
 971                         ol->oper[2] = oper_lr1;
 972                         insn->op = OP_RET;
 973                         insn->operands = ol;
 974                         $$ = insn;
 975                   }
 976                 ;
 977
 978 insn_rets       : OP_RETS {
 979                         struct instruction *insn = xmalloc(sizeof(struct instruction));
 980                         struct operlist *ol = xmalloc(sizeof(struct operlist));
 981                         struct operand *oper_r0 = xmalloc(sizeof(struct operand));
 982                         struct operand *oper_zero = xmalloc(sizeof(struct operand));
 983                         struct registr *r0 = xmalloc(sizeof(struct registr));
 984                         oper_zero->type = OPER_RAW;
 985                         oper_zero->u.raw = 0;
 986                         r0->type = GPR;
 987                         r0->nr = 0;
 988                         oper_r0->type = OPER_REG;
 989                         oper_r0->u.reg = r0;
 990                         ol->oper[0] = oper_r0;
 991                         ol->oper[1] = oper_r0;
 992                         ol->oper[2] = oper_zero;
 993                         insn->op = OP_RETS;
 994                         insn->operands = ol;
 995                         $$ = insn;
 996                   }
 997                 ;
 998
 999 insn_tkiph      : OP_TKIPH operlist_2 {
1000                         struct instruction *insn = xmalloc(sizeof(struct instruction));
1001                         struct operlist *ol = $2;
1002                         struct operand *flags = xmalloc(sizeof(struct operand));
1003                         struct immediate *imm = xmalloc(sizeof(struct immediate));
1004                         imm->imm = 0x1;
1005                         flags->type = OPER_IMM;
1006                         flags->u.imm = imm;
1007                         ol->oper[2] = ol->oper[1];
1008                         ol->oper[1] = flags;
1009                         insn->op = OP_TKIPH;
1010                         insn->operands = ol;
1011                         $$ = insn;
1012                   }
1013                 ;
1014
1015 insn_tkiphs     : OP_TKIPHS operlist_2 {
1016                         struct instruction *insn = xmalloc(sizeof(struct instruction));
1017                         struct operlist *ol = $2;
1018                         struct operand *flags = xmalloc(sizeof(struct operand));
1019                         struct immediate *imm = xmalloc(sizeof(struct immediate));
1020                         imm->imm = 0x1 | 0x2;
1021                         flags->type = OPER_IMM;
1022                         flags->u.imm = imm;
1023                         ol->oper[2] = ol->oper[1];
1024                         ol->oper[1] = flags;
1025                         insn->op = OP_TKIPH;
1026                         insn->operands = ol;
1027                         $$ = insn;
1028                   }
1029                 ;
1030
1031 insn_tkipl      : OP_TKIPL operlist_2 {
1032                         struct instruction *insn = xmalloc(sizeof(struct instruction));
1033                         struct operlist *ol = $2;
1034                         struct operand *flags = xmalloc(sizeof(struct operand));
1035                         struct immediate *imm = xmalloc(sizeof(struct immediate));
1036                         imm->imm = 0x0;
1037                         flags->type = OPER_IMM;
1038                         flags->u.imm = imm;
1039                         ol->oper[2] = ol->oper[1];
1040                         ol->oper[1] = flags;
1041                         insn->op = OP_TKIPH;
1042                         insn->operands = ol;
1043                         $$ = insn;
1044                   }
1045                 ;
1046
1047 insn_tkipls     : OP_TKIPLS operlist_2 {
1048                         struct instruction *insn = xmalloc(sizeof(struct instruction));
1049                         struct operlist *ol = $2;
1050                         struct operand *flags = xmalloc(sizeof(struct operand));
1051                         struct immediate *imm = xmalloc(sizeof(struct immediate));
1052                         imm->imm = 0x0 | 0x2;
1053                         flags->type = OPER_IMM;
1054                         flags->u.imm = imm;
1055                         ol->oper[2] = ol->oper[1];
1056                         ol->oper[1] = flags;
1057                         insn->op = OP_TKIPH;
1058                         insn->operands = ol;
1059                         $$ = insn;
1060                   }
1061                 ;
1062
1063 insn_nap        : OP_NAP {
1064                         struct instruction *insn = xmalloc(sizeof(struct instruction));
1065                         struct operlist *ol = xmalloc(sizeof(struct operlist));
1066                         struct operand *regop = xmalloc(sizeof(struct operand));
1067                         struct operand *zeroop = xmalloc(sizeof(struct operand));
1068                         struct registr *r0 = xmalloc(sizeof(struct registr));
1069                         r0->type = GPR;
1070                         r0->nr = 0;
1071                         regop->type = OPER_REG;
1072                         regop->u.reg = r0;
1073                         zeroop->type = OPER_RAW;
1074                         zeroop->u.raw = 0x000;
1075                         ol->oper[0] = regop;
1076                         ol->oper[1] = regop;
1077                         ol->oper[2] = zeroop;
1078                         insn->op = OP_NAP;
1079                         insn->operands = ol;
1080                         $$ = insn;
1081                   }
1082                 ;
1083
1084 insn_raw        : raw_code operlist_3 {
1085                         struct instruction *insn = xmalloc(sizeof(struct instruction));
1086                         insn->op = RAW_CODE;
1087                         insn->operands = $2;
1088                         insn->opcode = (unsigned long)$1;
1089                         $$ = insn;
1090                   }
1091                 ;
1092
1093 raw_code        : RAW_CODE {
1094                         yytext++; /* skip @ */
1095                         $$ = (void *)(unsigned long)strtoul(yytext, NULL, 16);
1096                   }
1097                 ;
1098
1099 extended_operlist : imm_value COMMA imm_value COMMA operand COMMA operand COMMA operand {
1100                         struct operlist *ol = xmalloc(sizeof(struct operlist));
1101                         struct operand *mask_oper = xmalloc(sizeof(struct operand));
1102                         struct operand *shift_oper = xmalloc(sizeof(struct operand));
1103                         mask_oper->type = OPER_RAW;
1104                         mask_oper->u.raw = (unsigned long)$1;
1105                         shift_oper->type = OPER_RAW;
1106                         shift_oper->u.raw = (unsigned long)$3;
1107                         ol->oper[0] = mask_oper;
1108                         ol->oper[1] = shift_oper;
1109                         ol->oper[2] = $5;
1110                         ol->oper[3] = $7;
1111                         ol->oper[4] = store_oper_sanity($9);
1112                         $$ = ol;
1113                   }
1114                 ;
1115
1116 external_jump_operands : imm COMMA labelref {
1117                         struct operlist *ol = xmalloc(sizeof(struct operlist));
1118                         struct operand *cond = xmalloc(sizeof(struct operand));
1119                         cond->type = OPER_IMM;
1120                         cond->u.imm = $1;
1121                         ol->oper[0] = cond;
1122                         ol->oper[1] = $3;
1123                         $$ = ol;
1124                   }
1125                 ;
1126
1127 operlist_2      : operand COMMA operand {
1128                         struct operlist *ol = xmalloc(sizeof(struct operlist));
1129                         ol->oper[0] = $1;
1130                         ol->oper[1] = store_oper_sanity($3);
1131                         $$ = ol;
1132                   }
1133                 ;
1134
1135 operlist_3      : operand COMMA operand COMMA operand {
1136                         struct operlist *ol = xmalloc(sizeof(struct operlist));
1137                         ol->oper[0] = $1;
1138                         ol->oper[1] = $3;
1139                         ol->oper[2] = store_oper_sanity($5);
1140                         $$ = ol;
1141                   }
1142                 ;
1143
1144 operand         : reg {
1145                         struct operand *oper = xmalloc(sizeof(struct operand));
1146                         oper->type = OPER_REG;
1147                         oper->u.reg = $1;
1148                         $$ = oper;
1149                   }
1150                 | mem {
1151                         struct operand *oper = xmalloc(sizeof(struct operand));
1152                         oper->type = OPER_MEM;
1153                         oper->u.mem = $1;
1154                         $$ = oper;
1155                   }
1156                 | raw_code {
1157                         struct operand *oper = xmalloc(sizeof(struct operand));
1158                         oper->type = OPER_RAW;
1159                         oper->u.raw = (unsigned long)$1;
1160                         $$ = oper;
1161                   }
1162                 | imm {
1163                         struct operand *oper = xmalloc(sizeof(struct operand));
1164                         oper->type = OPER_IMM;
1165                         oper->u.imm = $1;
1166                         $$ = oper;
1167                   }
1168                 | labelref {
1169                         $$ = $1;
1170                   }
1171                 ;
1172
1173 reg             : GPR regnr {
1174                         struct registr *reg = xmalloc(sizeof(struct registr));
1175                         reg->type = GPR;
1176                         reg->nr = (unsigned long)$2;
1177                         $$ = reg;
1178                   }
1179                 | SPR {
1180                         struct registr *reg = xmalloc(sizeof(struct registr));
1181                         reg->type = SPR;
1182                         yytext += 3; /* skip "spr" */
1183                         reg->nr = strtoul(yytext, NULL, 16);
1184                         $$ = reg;
1185                   }
1186                 | OFFR regnr {
1187                         struct registr *reg = xmalloc(sizeof(struct registr));
1188                         reg->type = OFFR;
1189                         reg->nr = (unsigned long)$2;
1190                         $$ = reg;
1191                   }
1192                 ;
1193
1194 mem             : BRACK_OPEN imm BRACK_CLOSE {
1195                         struct memory *mem = xmalloc(sizeof(struct memory));
1196                         struct immediate *offset_imm = $2;
1197                         mem->type = MEM_DIRECT;
1198                         mem->offset = offset_imm->imm;
1199                         free(offset_imm);
1200                         $$ = mem;
1201                   }
1202                 | BRACK_OPEN imm COMMA OFFR regnr BRACK_CLOSE {
1203                         struct memory *mem = xmalloc(sizeof(struct memory));
1204                         struct immediate *offset_imm = $2;
1205                         mem->type = MEM_INDIRECT;
1206                         mem->offset = offset_imm->imm;
1207                         free(offset_imm);
1208                         mem->offr_nr = (unsigned long)$5;
1209                         $$ = mem;
1210                   }
1211                 ;
1212
1213 imm             : imm_value {
1214                         struct immediate *imm = xmalloc(sizeof(struct immediate));
1215                         imm->imm = (unsigned long)$1;
1216                         $$ = imm;
1217                   }
1218                 ;
1219
1220 imm_value       : hexnum_decnum {
1221                         $$ = $1;
1222                   }
1223                 | complex_imm {
1224                         $$ = $1;
1225                   }
1226                 ;
1227
1228 complex_imm     : PAREN_OPEN complex_imm_arg complex_imm_oper complex_imm_arg PAREN_CLOSE {
1229                         unsigned long a = (unsigned long)$2;
1230                         unsigned long b = (unsigned long)$4;
1231                         unsigned long operation = (unsigned long)$3;
1232                         unsigned long res = 31337;
1233                         switch (operation) {
1234                         case PLUS:
1235                                 res = a + b;
1236                                 break;
1237                         case MINUS:
1238                                 res = a - b;
1239                                 break;
1240                         case MULTIPLY:
1241                                 res = a * b;
1242                                 break;
1243                         case DIVIDE:
1244                                 res = a / b;
1245                                 break;
1246                         case BITW_OR:
1247                                 res = a | b;
1248                                 break;
1249                         case BITW_AND:
1250                                 res = a & b;
1251                                 break;
1252                         case BITW_XOR:
1253                                 res = a ^ b;
1254                                 break;
1255                         case LEFTSHIFT:
1256                                 res = a << b;
1257                                 break;
1258                         case RIGHTSHIFT:
1259                                 res = a >> b;
1260                                 break;
1261                         default:
1262                                 yyerror("Internal parser BUG. complex_imm oper unknown");
1263                         }
1264                         $$ = (void *)res;
1265                   }
1266                 | PAREN_OPEN complex_imm PAREN_CLOSE {
1267                         $$ = $2;
1268                   }
1269                 | PAREN_OPEN asm_assert PAREN_CLOSE {
1270                         /* Inline assertion. Always return zero */
1271                         $$ = (void *)(unsigned long)(unsigned int)0;
1272                   }
1273                 | PAREN_OPEN BITW_NOT complex_imm PAREN_CLOSE {
1274                         unsigned long n = (unsigned long)$3;
1275                         n = ~n;
1276                         $$ = (void *)n;
1277                   }
1278                 | PAREN_OPEN complex_imm_const PAREN_CLOSE {
1279                         $$ = $2;
1280                   }
1281                 ;
1282
1283 complex_imm_oper : PLUS {
1284                         $$ = (void *)(unsigned long)PLUS;
1285                   }
1286                 | MINUS {
1287                         $$ = (void *)(unsigned long)MINUS;
1288                   }
1289                 | MULTIPLY {
1290                         $$ = (void *)(unsigned long)MULTIPLY;
1291                   }
1292                 | DIVIDE {
1293                         $$ = (void *)(unsigned long)DIVIDE;
1294                   }
1295                 | BITW_OR {
1296                         $$ = (void *)(unsigned long)BITW_OR;
1297                   }
1298                 | BITW_AND {
1299                         $$ = (void *)(unsigned long)BITW_AND;
1300                   }
1301                 | BITW_XOR {
1302                         $$ = (void *)(unsigned long)BITW_XOR;
1303                   }
1304                 | LEFTSHIFT {
1305                         $$ = (void *)(unsigned long)LEFTSHIFT;
1306                   }
1307                 | RIGHTSHIFT {
1308                         $$ = (void *)(unsigned long)RIGHTSHIFT;
1309                   }
1310                 ;
1311
1312 complex_imm_arg : complex_imm_const {
1313                         $$ = $1;
1314                   }
1315                 | complex_imm {
1316                         $$ = $1;
1317                   }
1318                 ;
1319
1320 complex_imm_const : hexnum_decnum {
1321                         $$ = $1;
1322                   }
1323                 | BITW_NOT hexnum_decnum {
1324                         unsigned long n = (unsigned long)$2;
1325                         n = ~n;
1326                         $$ = (void *)n;
1327                   }
1328                 ;
1329
1330 hexnum          : HEXNUM {
1331                         while (yytext[0] != 'x') {
1332                                 if (yytext[0] == '\0')
1333                                         yyerror("Internal HEXNUM parser error");
1334                                 yytext++;
1335                         }
1336                         yytext++;
1337                         $$ = (void *)(unsigned long)strtoul(yytext, NULL, 16);
1338                   }
1339                 ;
1340
1341 decnum          : DECNUM {
1342                         $$ = (void *)(unsigned long)strtol(yytext, NULL, 10);
1343                   }
1344                 ;
1345
1346 hexnum_decnum   : hexnum {
1347                         $$ = $1;
1348                   }
1349                 | decnum {
1350                         $$ = $1;
1351                   }
1352                 ;
1353
1354 labelref        : identifier {
1355                         struct operand *oper = xmalloc(sizeof(struct operand));
1356                         struct label *label = xmalloc(sizeof(struct label));
1357                         label->name = $1;
1358                         label->direction = LABELREF_ABSOLUTE;
1359                         oper->type = OPER_LABEL;
1360                         oper->u.label = label;
1361                         $$ = oper;
1362                   }
1363                 | identifier MINUS {
1364                         struct operand *oper = xmalloc(sizeof(struct operand));
1365                         struct label *label = xmalloc(sizeof(struct label));
1366                         label->name = $1;
1367                         label->direction = LABELREF_RELATIVE_BACK;
1368                         oper->type = OPER_LABEL;
1369                         oper->u.label = label;
1370                         $$ = oper;
1371                   }
1372                 | identifier PLUS {
1373                         struct operand *oper = xmalloc(sizeof(struct operand));
1374                         struct label *label = xmalloc(sizeof(struct label));
1375                         label->name = $1;
1376                         label->direction = LABELREF_RELATIVE_FORWARD;
1377                         oper->type = OPER_LABEL;
1378                         oper->u.label = label;
1379                         $$ = oper;
1380                   }
1381                 ;
1382
1383 regnr           : DECNUM {
1384                         $$ = (void *)(unsigned long)strtoul(yytext, NULL, 10);
1385                   }
1386                 ;
1387
1388 identifier      : IDENT {
1389                         $$ = xstrdup(yytext);
1390                   }
1391                 ;
1392
1393 %%
1394
1395 int section = SECTION_TEXT; /* default to .text section */
1396 struct initvals_sect *cur_initvals_sect;
1397
1398 void yyerror(char *str)
1399 {
1400         unsigned int i;
1401
1402         fprintf(stderr,
1403                 "Parser ERROR (file \"%s\", line %u, col %u):\n",
1404                 cur_lineinfo.file,
1405                 cur_lineinfo.lineno,
1406                 cur_lineinfo.column);
1407         fprintf(stderr, "%s\n", cur_lineinfo.linecopy);
1408         for (i = 0; i < cur_lineinfo.column - 1; i++)
1409                 fprintf(stderr, " ");
1410         fprintf(stderr, "^\n");
1411         fprintf(stderr, "%s\n", str);
1412         exit(1);
1413 }
1414
1415 static struct operand * store_oper_sanity(struct operand *oper)
1416 {
1417         if (oper->type == OPER_IMM &&
1418             oper->u.imm->imm != 0) {
1419                 yyerror("Only 0x000 Immediate is allowed for "
1420                         "Output operands");
1421         }
1422         return oper;
1423 }
1424
1425 static void assembler_assertion_failed(void)
1426 {
1427         yyerror("Assembler %assert failed");
1428 }