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 {
 520                         $$ = NULL;
 521                   }
 522                 ;
 523
 524 asm_assert      : ASM_ASSERT assertion {
 525                         unsigned int ok = (unsigned int)(unsigned long)$2;
 526                         if (!ok)
 527                                 assembler_assertion_failed();
 528                         $$ = NULL;
 529                   }
 530                 ;
 531
 532 assertion       : PAREN_OPEN assert_expr PAREN_CLOSE {
 533                         $$ = $2;
 534                   }
 535                 | PAREN_OPEN assertion LOGICAL_OR assertion PAREN_CLOSE {
 536                         unsigned int a = (unsigned int)(unsigned long)$2;
 537                         unsigned int b = (unsigned int)(unsigned long)$4;
 538                         unsigned int result = (a || b);
 539                         $$ = (void *)(unsigned long)result;
 540                   }
 541                 | PAREN_OPEN assertion LOGICAL_AND assertion PAREN_CLOSE {
 542                         unsigned int a = (unsigned int)(unsigned long)$2;
 543                         unsigned int b = (unsigned int)(unsigned long)$4;
 544                         unsigned int result = (a && b);
 545                         $$ = (void *)(unsigned long)result;
 546                   }
 547                 ;
 548
 549 assert_expr     : imm_value EQUAL imm_value {
 550                         unsigned int a = (unsigned int)(unsigned long)$1;
 551                         unsigned int b = (unsigned int)(unsigned long)$3;
 552                         unsigned int result = (a == b);
 553                         $$ = (void *)(unsigned long)result;
 554                   }
 555                 | imm_value NOT_EQUAL imm_value {
 556                         unsigned int a = (unsigned int)(unsigned long)$1;
 557                         unsigned int b = (unsigned int)(unsigned long)$3;
 558                         unsigned int result = (a != b);
 559                         $$ = (void *)(unsigned long)result;
 560                   }
 561                 ;
 562
 563 label           : LABEL {
 564                         struct label *label = xmalloc(sizeof(struct label));
 565                         char *l;
 566                         l = xstrdup(yytext);
 567                         l[strlen(l) - 1] = '\0';
 568                         label->name = l;
 569                         $$ = label;
 570                   }
 571                 ;
 572
 573 /* add */
 574 insn_add        : OP_ADD operlist_3 {
 575                         struct instruction *insn = xmalloc(sizeof(struct instruction));
 576                         insn->op = OP_ADD;
 577                         insn->operands = $2;
 578                         $$ = insn;
 579                   }
 580                 ;
 581
 582 /* add. */
 583 insn_addsc      : OP_ADDSC operlist_3 {
 584                         struct instruction *insn = xmalloc(sizeof(struct instruction));
 585                         insn->op = OP_ADDSC;
 586                         insn->operands = $2;
 587                         $$ = insn;
 588                   }
 589                 ;
 590
 591 /* addc */
 592 insn_addc       : OP_ADDC operlist_3 {
 593                         struct instruction *insn = xmalloc(sizeof(struct instruction));
 594                         insn->op = OP_ADDC;
 595                         insn->operands = $2;
 596                         $$ = insn;
 597                   }
 598                 ;
 599
 600 /* addc. */
 601 insn_addscc     : OP_ADDSCC operlist_3 {
 602                         struct instruction *insn = xmalloc(sizeof(struct instruction));
 603                         insn->op = OP_ADDSCC;
 604                         insn->operands = $2;
 605                         $$ = insn;
 606                   }
 607                 ;
 608
 609 /* sub */
 610 insn_sub        : OP_SUB operlist_3 {
 611                         struct instruction *insn = xmalloc(sizeof(struct instruction));
 612                         insn->op = OP_SUB;
 613                         insn->operands = $2;
 614                         $$ = insn;
 615                   }
 616                 ;
 617
 618 /* sub. */
 619 insn_subsc      : OP_SUBSC operlist_3 {
 620                         struct instruction *insn = xmalloc(sizeof(struct instruction));
 621                         insn->op = OP_SUBSC;
 622                         insn->operands = $2;
 623                         $$ = insn;
 624                   }
 625                 ;
 626
 627 /* subc */
 628 insn_subc       : OP_SUBC operlist_3 {
 629                         struct instruction *insn = xmalloc(sizeof(struct instruction));
 630                         insn->op = OP_SUBC;
 631                         insn->operands = $2;
 632                         $$ = insn;
 633                   }
 634                 ;
 635
 636 /* subc. */
 637 insn_subscc     : OP_SUBSCC operlist_3 {
 638                         struct instruction *insn = xmalloc(sizeof(struct instruction));
 639                         insn->op = OP_SUBSCC;
 640                         insn->operands = $2;
 641                         $$ = insn;
 642                   }
 643                 ;
 644
 645 insn_sra        : OP_SRA operlist_3 {
 646                         struct instruction *insn = xmalloc(sizeof(struct instruction));
 647                         insn->op = OP_SRA;
 648                         insn->operands = $2;
 649                         $$ = insn;
 650                   }
 651                 ;
 652
 653 insn_or         : OP_OR operlist_3 {
 654                         struct instruction *insn = xmalloc(sizeof(struct instruction));
 655                         insn->op = OP_OR;
 656                         insn->operands = $2;
 657                         $$ = insn;
 658                   }
 659                 ;
 660
 661 insn_and        : OP_AND operlist_3 {
 662                         struct instruction *insn = xmalloc(sizeof(struct instruction));
 663                         insn->op = OP_AND;
 664                         insn->operands = $2;
 665                         $$ = insn;
 666                   }
 667                 ;
 668
 669 insn_xor        : OP_XOR operlist_3 {
 670                         struct instruction *insn = xmalloc(sizeof(struct instruction));
 671                         insn->op = OP_XOR;
 672                         insn->operands = $2;
 673                         $$ = insn;
 674                   }
 675                 ;
 676
 677 insn_sr         : OP_SR operlist_3 {
 678                         struct instruction *insn = xmalloc(sizeof(struct instruction));
 679                         insn->op = OP_SR;
 680                         insn->operands = $2;
 681                         $$ = insn;
 682                   }
 683                 ;
 684
 685 insn_srx        : OP_SRX extended_operlist {
 686                         struct instruction *insn = xmalloc(sizeof(struct instruction));
 687                         insn->op = OP_SRX;
 688                         insn->operands = $2;
 689                         $$ = insn;
 690                   }
 691                 ;
 692
 693 insn_sl         : OP_SL operlist_3 {
 694                         struct instruction *insn = xmalloc(sizeof(struct instruction));
 695                         insn->op = OP_SL;
 696                         insn->operands = $2;
 697                         $$ = insn;
 698                   }
 699                 ;
 700
 701 insn_rl         : OP_RL operlist_3 {
 702                         struct instruction *insn = xmalloc(sizeof(struct instruction));
 703                         insn->op = OP_RL;
 704                         insn->operands = $2;
 705                         $$ = insn;
 706                   }
 707                 ;
 708
 709 insn_rr         : OP_RR operlist_3 {
 710                         struct instruction *insn = xmalloc(sizeof(struct instruction));
 711                         insn->op = OP_RR;
 712                         insn->operands = $2;
 713                         $$ = insn;
 714                   }
 715                 ;
 716
 717 insn_nand       : OP_NAND operlist_3 {
 718                         struct instruction *insn = xmalloc(sizeof(struct instruction));
 719                         insn->op = OP_NAND;
 720                         insn->operands = $2;
 721                         $$ = insn;
 722                   }
 723                 ;
 724
 725 insn_orx        : OP_ORX extended_operlist {
 726                         struct instruction *insn = xmalloc(sizeof(struct instruction));
 727                         insn->op = OP_ORX;
 728                         insn->operands = $2;
 729                         $$ = insn;
 730                   }
 731                 ;
 732
 733 insn_mov        : OP_MOV operlist_2 {
 734                         struct instruction *insn = xmalloc(sizeof(struct instruction));
 735                         insn->op = OP_MOV;
 736                         insn->operands = $2;
 737                         $$ = insn;
 738                   }
 739                 ;
 740
 741 insn_jmp        : OP_JMP labelref {
 742                         struct instruction *insn = xmalloc(sizeof(struct instruction));
 743                         struct operlist *ol = xmalloc(sizeof(struct operlist));
 744                         ol->oper[0] = $2;
 745                         insn->op = OP_JMP;
 746                         insn->operands = ol;
 747                         $$ = insn;
 748                   }
 749                 ;
 750
 751 insn_jand       : OP_JAND operlist_3 {
 752                         struct instruction *insn = xmalloc(sizeof(struct instruction));
 753                         insn->op = OP_JAND;
 754                         insn->operands = $2;
 755                         $$ = insn;
 756                   }
 757                 ;
 758
 759 insn_jnand      : OP_JNAND operlist_3 {
 760                         struct instruction *insn = xmalloc(sizeof(struct instruction));
 761                         insn->op = OP_JNAND;
 762                         insn->operands = $2;
 763                         $$ = insn;
 764                   }
 765                 ;
 766
 767 insn_js         : OP_JS operlist_3 {
 768                         struct instruction *insn = xmalloc(sizeof(struct instruction));
 769                         insn->op = OP_JS;
 770                         insn->operands = $2;
 771                         $$ = insn;
 772                   }
 773                 ;
 774
 775 insn_jns        : OP_JNS operlist_3 {
 776                         struct instruction *insn = xmalloc(sizeof(struct instruction));
 777                         insn->op = OP_JNS;
 778                         insn->operands = $2;
 779                         $$ = insn;
 780                   }
 781                 ;
 782
 783 insn_je         : OP_JE operlist_3 {
 784                         struct instruction *insn = xmalloc(sizeof(struct instruction));
 785                         insn->op = OP_JE;
 786                         insn->operands = $2;
 787                         $$ = insn;
 788                   }
 789                 ;
 790
 791 insn_jne        : OP_JNE operlist_3 {
 792                         struct instruction *insn = xmalloc(sizeof(struct instruction));
 793                         insn->op = OP_JNE;
 794                         insn->operands = $2;
 795                         $$ = insn;
 796                   }
 797                 ;
 798
 799 insn_jls        : OP_JLS operlist_3 {
 800                         struct instruction *insn = xmalloc(sizeof(struct instruction));
 801                         insn->op = OP_JLS;
 802                         insn->operands = $2;
 803                         $$ = insn;
 804                   }
 805                 ;
 806
 807 insn_jges       : OP_JGES operlist_3 {
 808                         struct instruction *insn = xmalloc(sizeof(struct instruction));
 809                         insn->op = OP_JGES;
 810                         insn->operands = $2;
 811                         $$ = insn;
 812                   }
 813                 ;
 814
 815 insn_jgs        : OP_JGS operlist_3 {
 816                         struct instruction *insn = xmalloc(sizeof(struct instruction));
 817                         insn->op = OP_JGS;
 818                         insn->operands = $2;
 819                         $$ = insn;
 820                   }
 821                 ;
 822
 823 insn_jles       : OP_JLES operlist_3 {
 824                         struct instruction *insn = xmalloc(sizeof(struct instruction));
 825                         insn->op = OP_JLES;
 826                         insn->operands = $2;
 827                         $$ = insn;
 828                   }
 829                 ;
 830
 831 insn_jl         : OP_JL operlist_3 {
 832                         struct instruction *insn = xmalloc(sizeof(struct instruction));
 833                         insn->op = OP_JL;
 834                         insn->operands = $2;
 835                         $$ = insn;
 836                   }
 837                 ;
 838
 839 insn_jge        : OP_JGE operlist_3 {
 840                         struct instruction *insn = xmalloc(sizeof(struct instruction));
 841                         insn->op = OP_JGE;
 842                         insn->operands = $2;
 843                         $$ = insn;
 844                   }
 845                 ;
 846
 847 insn_jg         : OP_JG operlist_3 {
 848                         struct instruction *insn = xmalloc(sizeof(struct instruction));
 849                         insn->op = OP_JG;
 850                         insn->operands = $2;
 851                         $$ = insn;
 852                   }
 853                 ;
 854
 855 insn_jle        : OP_JLE operlist_3 {
 856                         struct instruction *insn = xmalloc(sizeof(struct instruction));
 857                         insn->op = OP_JLE;
 858                         insn->operands = $2;
 859                         $$ = insn;
 860                   }
 861                 ;
 862
 863 insn_jzx        : OP_JZX extended_operlist {
 864                         struct instruction *insn = xmalloc(sizeof(struct instruction));
 865                         insn->op = OP_JZX;
 866                         insn->operands = $2;
 867                         $$ = insn;
 868                   }
 869                 ;
 870
 871 insn_jnzx       : OP_JNZX extended_operlist {
 872                         struct instruction *insn = xmalloc(sizeof(struct instruction));
 873                         insn->op = OP_JNZX;
 874                         insn->operands = $2;
 875                         $$ = insn;
 876                   }
 877                 ;
 878
 879 insn_jext       : OP_JEXT external_jump_operands {
 880                         struct instruction *insn = xmalloc(sizeof(struct instruction));
 881                         insn->op = OP_JEXT;
 882                         insn->operands = $2;
 883                         $$ = insn;
 884                   }
 885                 ;
 886
 887 insn_jnext      : OP_JNEXT external_jump_operands {
 888                         struct instruction *insn = xmalloc(sizeof(struct instruction));
 889                         insn->op = OP_JNEXT;
 890                         insn->operands = $2;
 891                         $$ = insn;
 892                   }
 893                 ;
 894
 895 linkreg         : LR regnr {
 896                         $$ = $2;
 897                   }
 898                 ;
 899
 900 insn_call       : OP_CALL linkreg COMMA labelref {
 901                         struct instruction *insn = xmalloc(sizeof(struct instruction));
 902                         struct operlist *ol = xmalloc(sizeof(struct operlist));
 903                         struct operand *oper_lr = xmalloc(sizeof(struct operand));
 904                         struct operand *oper_zero = xmalloc(sizeof(struct operand));
 905                         oper_zero->type = OPER_RAW;
 906                         oper_zero->u.raw = 0;
 907                         oper_lr->type = OPER_RAW;
 908                         oper_lr->u.raw = (unsigned long)$2;
 909                         ol->oper[0] = oper_lr;
 910                         ol->oper[1] = oper_zero;
 911                         ol->oper[2] = $4;
 912                         insn->op = OP_CALL;
 913                         insn->operands = ol;
 914                         $$ = insn;
 915                   }
 916                 ;
 917
 918 insn_ret        : OP_RET linkreg COMMA linkreg {
 919                         struct instruction *insn = xmalloc(sizeof(struct instruction));
 920                         struct operlist *ol = xmalloc(sizeof(struct operlist));
 921                         struct operand *oper_lr0 = xmalloc(sizeof(struct operand));
 922                         struct operand *oper_lr1 = xmalloc(sizeof(struct operand));
 923                         struct operand *oper_zero = xmalloc(sizeof(struct operand));
 924                         oper_zero->type = OPER_RAW;
 925                         oper_zero->u.raw = 0;
 926                         oper_lr0->type = OPER_RAW;
 927                         oper_lr0->u.raw = (unsigned long)$2;
 928                         oper_lr1->type = OPER_RAW;
 929                         oper_lr1->u.raw = (unsigned long)$4;
 930                         ol->oper[0] = oper_lr0;
 931                         ol->oper[1] = oper_zero;
 932                         ol->oper[2] = oper_lr1;
 933                         insn->op = OP_RET;
 934                         insn->operands = ol;
 935                         $$ = insn;
 936                   }
 937                 ;
 938
 939 insn_tkiph      : OP_TKIPH operlist_2 {
 940                         struct instruction *insn = xmalloc(sizeof(struct instruction));
 941                         struct operlist *ol = $2;
 942                         struct operand *flags = xmalloc(sizeof(struct operand));
 943                         struct immediate *imm = xmalloc(sizeof(struct immediate));
 944                         imm->imm = 0x1;
 945                         flags->type = OPER_IMM;
 946                         flags->u.imm = imm;
 947                         ol->oper[2] = ol->oper[1];
 948                         ol->oper[1] = flags;
 949                         insn->op = OP_TKIPH;
 950                         insn->operands = ol;
 951                         $$ = insn;
 952                   }
 953                 ;
 954
 955 insn_tkiphs     : OP_TKIPHS operlist_2 {
 956                         struct instruction *insn = xmalloc(sizeof(struct instruction));
 957                         struct operlist *ol = $2;
 958                         struct operand *flags = xmalloc(sizeof(struct operand));
 959                         struct immediate *imm = xmalloc(sizeof(struct immediate));
 960                         imm->imm = 0x1 | 0x2;
 961                         flags->type = OPER_IMM;
 962                         flags->u.imm = imm;
 963                         ol->oper[2] = ol->oper[1];
 964                         ol->oper[1] = flags;
 965                         insn->op = OP_TKIPH;
 966                         insn->operands = ol;
 967                         $$ = insn;
 968                   }
 969                 ;
 970
 971 insn_tkipl      : OP_TKIPL operlist_2 {
 972                         struct instruction *insn = xmalloc(sizeof(struct instruction));
 973                         struct operlist *ol = $2;
 974                         struct operand *flags = xmalloc(sizeof(struct operand));
 975                         struct immediate *imm = xmalloc(sizeof(struct immediate));
 976                         imm->imm = 0x0;
 977                         flags->type = OPER_IMM;
 978                         flags->u.imm = imm;
 979                         ol->oper[2] = ol->oper[1];
 980                         ol->oper[1] = flags;
 981                         insn->op = OP_TKIPH;
 982                         insn->operands = ol;
 983                         $$ = insn;
 984                   }
 985                 ;
 986
 987 insn_tkipls     : OP_TKIPLS operlist_2 {
 988                         struct instruction *insn = xmalloc(sizeof(struct instruction));
 989                         struct operlist *ol = $2;
 990                         struct operand *flags = xmalloc(sizeof(struct operand));
 991                         struct immediate *imm = xmalloc(sizeof(struct immediate));
 992                         imm->imm = 0x0 | 0x2;
 993                         flags->type = OPER_IMM;
 994                         flags->u.imm = imm;
 995                         ol->oper[2] = ol->oper[1];
 996                         ol->oper[1] = flags;
 997                         insn->op = OP_TKIPH;
 998                         insn->operands = ol;
 999                         $$ = insn;
1000                   }
1001                 ;
1002
1003 insn_nap        : OP_NAP {
1004                         struct instruction *insn = xmalloc(sizeof(struct instruction));
1005                         struct operlist *ol = xmalloc(sizeof(struct operlist));
1006                         struct operand *regop = xmalloc(sizeof(struct operand));
1007                         struct operand *zeroop = xmalloc(sizeof(struct operand));
1008                         struct registr *r0 = xmalloc(sizeof(struct registr));
1009                         r0->type = GPR;
1010                         r0->nr = 0;
1011                         regop->type = OPER_REG;
1012                         regop->u.reg = r0;
1013                         zeroop->type = OPER_RAW;
1014                         zeroop->u.raw = 0x000;
1015                         ol->oper[0] = regop;
1016                         ol->oper[1] = regop;
1017                         ol->oper[2] = zeroop;
1018                         insn->op = OP_NAP;
1019                         insn->operands = ol;
1020                         $$ = insn;
1021                   }
1022                 ;
1023
1024 insn_raw        : raw_code operlist_3 {
1025                         struct instruction *insn = xmalloc(sizeof(struct instruction));
1026                         insn->op = RAW_CODE;
1027                         insn->operands = $2;
1028                         insn->opcode = (unsigned long)$1;
1029                         $$ = insn;
1030                   }
1031                 ;
1032
1033 raw_code        : RAW_CODE {
1034                         yytext++; /* skip @ */
1035                         $$ = (void *)(unsigned long)strtoul(yytext, NULL, 16);
1036                   }
1037                 ;
1038
1039 extended_operlist : imm_value COMMA imm_value COMMA operand COMMA operand COMMA operand {
1040                         struct operlist *ol = xmalloc(sizeof(struct operlist));
1041                         struct operand *mask_oper = xmalloc(sizeof(struct operand));
1042                         struct operand *shift_oper = xmalloc(sizeof(struct operand));
1043                         mask_oper->type = OPER_RAW;
1044                         mask_oper->u.raw = (unsigned long)$1;
1045                         shift_oper->type = OPER_RAW;
1046                         shift_oper->u.raw = (unsigned long)$3;
1047                         ol->oper[0] = mask_oper;
1048                         ol->oper[1] = shift_oper;
1049                         ol->oper[2] = $5;
1050                         ol->oper[3] = $7;
1051                         ol->oper[4] = store_oper_sanity($9);
1052                         $$ = ol;
1053                   }
1054                 ;
1055
1056 external_jump_operands : imm COMMA labelref {
1057                         struct operlist *ol = xmalloc(sizeof(struct operlist));
1058                         struct operand *cond = xmalloc(sizeof(struct operand));
1059                         cond->type = OPER_IMM;
1060                         cond->u.imm = $1;
1061                         ol->oper[0] = cond;
1062                         ol->oper[1] = $3;
1063                         $$ = ol;
1064                   }
1065                 ;
1066
1067 operlist_2      : operand COMMA operand {
1068                         struct operlist *ol = xmalloc(sizeof(struct operlist));
1069                         ol->oper[0] = $1;
1070                         ol->oper[1] = store_oper_sanity($3);
1071                         $$ = ol;
1072                   }
1073                 ;
1074
1075 operlist_3      : operand COMMA operand COMMA operand {
1076                         struct operlist *ol = xmalloc(sizeof(struct operlist));
1077                         ol->oper[0] = $1;
1078                         ol->oper[1] = $3;
1079                         ol->oper[2] = store_oper_sanity($5);
1080                         $$ = ol;
1081                   }
1082                 ;
1083
1084 operand         : reg {
1085                         struct operand *oper = xmalloc(sizeof(struct operand));
1086                         oper->type = OPER_REG;
1087                         oper->u.reg = $1;
1088                         $$ = oper;
1089                   }
1090                 | mem {
1091                         struct operand *oper = xmalloc(sizeof(struct operand));
1092                         oper->type = OPER_MEM;
1093                         oper->u.mem = $1;
1094                         $$ = oper;
1095                   }
1096                 | raw_code {
1097                         struct operand *oper = xmalloc(sizeof(struct operand));
1098                         oper->type = OPER_RAW;
1099                         oper->u.raw = (unsigned long)$1;
1100                         $$ = oper;
1101                   }
1102                 | imm {
1103                         struct operand *oper = xmalloc(sizeof(struct operand));
1104                         oper->type = OPER_IMM;
1105                         oper->u.imm = $1;
1106                         $$ = oper;
1107                   }
1108                 | labelref {
1109                         $$ = $1;
1110                   }
1111                 ;
1112
1113 reg             : GPR regnr {
1114                         struct registr *reg = xmalloc(sizeof(struct registr));
1115                         reg->type = GPR;
1116                         reg->nr = (unsigned long)$2;
1117                         $$ = reg;
1118                   }
1119                 | SPR {
1120                         struct registr *reg = xmalloc(sizeof(struct registr));
1121                         reg->type = SPR;
1122                         yytext += 3; /* skip "spr" */
1123                         reg->nr = strtoul(yytext, NULL, 16);
1124                         $$ = reg;
1125                   }
1126                 | OFFR regnr {
1127                         struct registr *reg = xmalloc(sizeof(struct registr));
1128                         reg->type = OFFR;
1129                         reg->nr = (unsigned long)$2;
1130                         $$ = reg;
1131                   }
1132                 ;
1133
1134 mem             : BRACK_OPEN imm BRACK_CLOSE {
1135                         struct memory *mem = xmalloc(sizeof(struct memory));
1136                         struct immediate *offset_imm = $2;
1137                         mem->type = MEM_DIRECT;
1138                         mem->offset = offset_imm->imm;
1139                         free(offset_imm);
1140                         $$ = mem;
1141                   }
1142                 | BRACK_OPEN imm COMMA OFFR regnr BRACK_CLOSE {
1143                         struct memory *mem = xmalloc(sizeof(struct memory));
1144                         struct immediate *offset_imm = $2;
1145                         mem->type = MEM_INDIRECT;
1146                         mem->offset = offset_imm->imm;
1147                         free(offset_imm);
1148                         mem->offr_nr = (unsigned long)$5;
1149                         $$ = mem;
1150                   }
1151                 ;
1152
1153 imm             : imm_value {
1154                         struct immediate *imm = xmalloc(sizeof(struct immediate));
1155                         imm->imm = (unsigned long)$1;
1156                         $$ = imm;
1157                   }
1158                 ;
1159
1160 imm_value       : hexnum_decnum {
1161                         $$ = $1;
1162                   }
1163                 | complex_imm {
1164                         $$ = $1;
1165                   }
1166                 ;
1167
1168 complex_imm     : PAREN_OPEN complex_imm_arg complex_imm_oper complex_imm_arg PAREN_CLOSE {
1169                         unsigned long a = (unsigned long)$2;
1170                         unsigned long b = (unsigned long)$4;
1171                         unsigned long operation = (unsigned long)$3;
1172                         unsigned long res = 31337;
1173                         switch (operation) {
1174                         case PLUS:
1175                                 res = a + b;
1176                                 break;
1177                         case MINUS:
1178                                 res = a - b;
1179                                 break;
1180                         case MULTIPLY:
1181                                 res = a * b;
1182                                 break;
1183                         case DIVIDE:
1184                                 res = a / b;
1185                                 break;
1186                         case BITW_OR:
1187                                 res = a | b;
1188                                 break;
1189                         case BITW_AND:
1190                                 res = a & b;
1191                                 break;
1192                         case BITW_XOR:
1193                                 res = a ^ b;
1194                                 break;
1195                         case LEFTSHIFT:
1196                                 res = a << b;
1197                                 break;
1198                         case RIGHTSHIFT:
1199                                 res = a >> b;
1200                                 break;
1201                         default:
1202                                 yyerror("Internal parser BUG. complex_imm oper unknown");
1203                         }
1204                         $$ = (void *)res;
1205                   }
1206                 | PAREN_OPEN complex_imm PAREN_CLOSE {
1207                         $$ = $2;
1208                   }
1209                 | PAREN_OPEN asm_assert PAREN_CLOSE {
1210                         /* Inline assertion. Always return zero */
1211                         $$ = (void *)(unsigned long)(unsigned int)0;
1212                   }
1213                 | PAREN_OPEN BITW_NOT complex_imm PAREN_CLOSE {
1214                         unsigned long n = (unsigned long)$3;
1215                         n = ~n;
1216                         $$ = (void *)n;
1217                   }
1218                 | PAREN_OPEN complex_imm_const PAREN_CLOSE {
1219                         $$ = $2;
1220                   }
1221                 ;
1222
1223 complex_imm_oper : PLUS {
1224                         $$ = (void *)(unsigned long)PLUS;
1225                   }
1226                 | MINUS {
1227                         $$ = (void *)(unsigned long)MINUS;
1228                   }
1229                 | MULTIPLY {
1230                         $$ = (void *)(unsigned long)MULTIPLY;
1231                   }
1232                 | DIVIDE {
1233                         $$ = (void *)(unsigned long)DIVIDE;
1234                   }
1235                 | BITW_OR {
1236                         $$ = (void *)(unsigned long)BITW_OR;
1237                   }
1238                 | BITW_AND {
1239                         $$ = (void *)(unsigned long)BITW_AND;
1240                   }
1241                 | BITW_XOR {
1242                         $$ = (void *)(unsigned long)BITW_XOR;
1243                   }
1244                 | LEFTSHIFT {
1245                         $$ = (void *)(unsigned long)LEFTSHIFT;
1246                   }
1247                 | RIGHTSHIFT {
1248                         $$ = (void *)(unsigned long)RIGHTSHIFT;
1249                   }
1250                 ;
1251
1252 complex_imm_arg : complex_imm_const {
1253                         $$ = $1;
1254                   }
1255                 | complex_imm {
1256                         $$ = $1;
1257                   }
1258                 ;
1259
1260 complex_imm_const : hexnum_decnum {
1261                         $$ = $1;
1262                   }
1263                 | BITW_NOT hexnum_decnum {
1264                         unsigned long n = (unsigned long)$2;
1265                         n = ~n;
1266                         $$ = (void *)n;
1267                   }
1268                 ;
1269
1270 hexnum          : HEXNUM {
1271                         while (yytext[0] != 'x') {
1272                                 if (yytext[0] == '\0')
1273                                         yyerror("Internal HEXNUM parser error");
1274                                 yytext++;
1275                         }
1276                         yytext++;
1277                         $$ = (void *)(unsigned long)strtoul(yytext, NULL, 16);
1278                   }
1279                 ;
1280
1281 decnum          : DECNUM {
1282                         $$ = (void *)(unsigned long)strtol(yytext, NULL, 10);
1283                   }
1284                 ;
1285
1286 hexnum_decnum   : hexnum {
1287                         $$ = $1;
1288                   }
1289                 | decnum {
1290                         $$ = $1;
1291                   }
1292                 ;
1293
1294 labelref        : identifier {
1295                         struct operand *oper = xmalloc(sizeof(struct operand));
1296                         struct label *label = xmalloc(sizeof(struct label));
1297                         label->name = $1;
1298                         label->direction = LABELREF_ABSOLUTE;
1299                         oper->type = OPER_LABEL;
1300                         oper->u.label = label;
1301                         $$ = oper;
1302                   }
1303                 | identifier MINUS {
1304                         struct operand *oper = xmalloc(sizeof(struct operand));
1305                         struct label *label = xmalloc(sizeof(struct label));
1306                         label->name = $1;
1307                         label->direction = LABELREF_RELATIVE_BACK;
1308                         oper->type = OPER_LABEL;
1309                         oper->u.label = label;
1310                         $$ = oper;
1311                   }
1312                 | identifier PLUS {
1313                         struct operand *oper = xmalloc(sizeof(struct operand));
1314                         struct label *label = xmalloc(sizeof(struct label));
1315                         label->name = $1;
1316                         label->direction = LABELREF_RELATIVE_FORWARD;
1317                         oper->type = OPER_LABEL;
1318                         oper->u.label = label;
1319                         $$ = oper;
1320                   }
1321                 ;
1322
1323 regnr           : DECNUM {
1324                         $$ = (void *)(unsigned long)strtoul(yytext, NULL, 10);
1325                   }
1326                 ;
1327
1328 identifier      : IDENT {
1329                         $$ = xstrdup(yytext);
1330                   }
1331                 ;
1332
1333 %%
1334
1335 int section = SECTION_TEXT; /* default to .text section */
1336 struct initvals_sect *cur_initvals_sect;
1337
1338 void yyerror(char *str)
1339 {
1340         unsigned int i;
1341
1342         fprintf(stderr,
1343                 "Parser ERROR (file \"%s\", line %u, col %u):\n",
1344                 cur_lineinfo.file,
1345                 cur_lineinfo.lineno,
1346                 cur_lineinfo.column);
1347         fprintf(stderr, "%s\n", cur_lineinfo.linecopy);
1348         for (i = 0; i < cur_lineinfo.column - 1; i++)
1349                 fprintf(stderr, " ");
1350         fprintf(stderr, "^\n");
1351         fprintf(stderr, "%s\n", str);
1352         exit(1);
1353 }
1354
1355 static struct operand * store_oper_sanity(struct operand *oper)
1356 {
1357         if (oper->type == OPER_IMM &&
1358             oper->u.imm->imm != 0) {
1359                 yyerror("Only 0x000 Immediate is allowed for "
1360                         "Output operands");
1361         }
1362         return oper;
1363 }
1364
1365 static void assembler_assertion_failed(void)
1366 {
1367         yyerror("Assembler %assert failed");
1368 }