pr_execprogram.h

   1                 while (1)
   2                 {
   3                         st++;
   4                         if (++profile > 1000000) // LordHavoc: increased runaway loop limit 10x
   5                         {
   6                                 pr_xstatement = st - pr_statements;
   7                                 PR_RunError ("runaway loop error");
   8                         }
   9
  10 #if PRTRACE
  11                         PR_PrintStatement (st);
  12 #endif
  13
  14                         switch (st->op)
  15                         {
  16                         case OP_ADD_F:
  17                                 OPC->_float = OPA->_float + OPB->_float;
  18                                 break;
  19                         case OP_ADD_V:
  20                                 OPC->vector[0] = OPA->vector[0] + OPB->vector[0];
  21                                 OPC->vector[1] = OPA->vector[1] + OPB->vector[1];
  22                                 OPC->vector[2] = OPA->vector[2] + OPB->vector[2];
  23                                 break;
  24                         case OP_SUB_F:
  25                                 OPC->_float = OPA->_float - OPB->_float;
  26                                 break;
  27                         case OP_SUB_V:
  28                                 OPC->vector[0] = OPA->vector[0] - OPB->vector[0];
  29                                 OPC->vector[1] = OPA->vector[1] - OPB->vector[1];
  30                                 OPC->vector[2] = OPA->vector[2] - OPB->vector[2];
  31                                 break;
  32                         case OP_MUL_F:
  33                                 OPC->_float = OPA->_float * OPB->_float;
  34                                 break;
  35                         case OP_MUL_V:
  36                                 OPC->_float = OPA->vector[0]*OPB->vector[0] + OPA->vector[1]*OPB->vector[1] + OPA->vector[2]*OPB->vector[2];
  37                                 break;
  38                         case OP_MUL_FV:
  39                                 OPC->vector[0] = OPA->_float * OPB->vector[0];
  40                                 OPC->vector[1] = OPA->_float * OPB->vector[1];
  41                                 OPC->vector[2] = OPA->_float * OPB->vector[2];
  42                                 break;
  43                         case OP_MUL_VF:
  44                                 OPC->vector[0] = OPB->_float * OPA->vector[0];
  45                                 OPC->vector[1] = OPB->_float * OPA->vector[1];
  46                                 OPC->vector[2] = OPB->_float * OPA->vector[2];
  47                                 break;
  48                         case OP_DIV_F:
  49                                 OPC->_float = OPA->_float / OPB->_float;
  50                                 break;
  51                         case OP_BITAND:
  52                                 OPC->_float = (int)OPA->_float & (int)OPB->_float;
  53                                 break;
  54                         case OP_BITOR:
  55                                 OPC->_float = (int)OPA->_float | (int)OPB->_float;
  56                                 break;
  57                         case OP_GE:
  58                                 OPC->_float = OPA->_float >= OPB->_float;
  59                                 break;
  60                         case OP_LE:
  61                                 OPC->_float = OPA->_float <= OPB->_float;
  62                                 break;
  63                         case OP_GT:
  64                                 OPC->_float = OPA->_float > OPB->_float;
  65                                 break;
  66                         case OP_LT:
  67                                 OPC->_float = OPA->_float < OPB->_float;
  68                                 break;
  69                         case OP_AND:
  70                                 OPC->_float = OPA->_float && OPB->_float;
  71                                 break;
  72                         case OP_OR:
  73                                 OPC->_float = OPA->_float || OPB->_float;
  74                                 break;
  75                         case OP_NOT_F:
  76                                 OPC->_float = !OPA->_float;
  77                                 break;
  78                         case OP_NOT_V:
  79                                 OPC->_float = !OPA->vector[0] && !OPA->vector[1] && !OPA->vector[2];
  80                                 break;
  81                         case OP_NOT_S:
  82                                 OPC->_float = !OPA->string || !pr_strings[OPA->string];
  83                                 break;
  84                         case OP_NOT_FNC:
  85                                 OPC->_float = !OPA->function;
  86                                 break;
  87                         case OP_NOT_ENT:
  88                                 OPC->_float = (PROG_TO_EDICT(OPA->edict) == sv.edicts);
  89                                 break;
  90                         case OP_EQ_F:
  91                                 OPC->_float = OPA->_float == OPB->_float;
  92                                 break;
  93                         case OP_EQ_V:
  94                                 OPC->_float = (OPA->vector[0] == OPB->vector[0]) && (OPA->vector[1] == OPB->vector[1]) && (OPA->vector[2] == OPB->vector[2]);
  95                                 break;
  96                         case OP_EQ_S:
  97                                 OPC->_float = !strcmp(pr_strings+OPA->string,pr_strings+OPB->string);
  98                                 break;
  99                         case OP_EQ_E:
 100                                 OPC->_float = OPA->_int == OPB->_int;
 101                                 break;
 102                         case OP_EQ_FNC:
 103                                 OPC->_float = OPA->function == OPB->function;
 104                                 break;
 105                         case OP_NE_F:
 106                                 OPC->_float = OPA->_float != OPB->_float;
 107                                 break;
 108                         case OP_NE_V:
 109                                 OPC->_float = (OPA->vector[0] != OPB->vector[0]) || (OPA->vector[1] != OPB->vector[1]) || (OPA->vector[2] != OPB->vector[2]);
 110                                 break;
 111                         case OP_NE_S:
 112                                 OPC->_float = strcmp(pr_strings+OPA->string,pr_strings+OPB->string);
 113                                 break;
 114                         case OP_NE_E:
 115                                 OPC->_float = OPA->_int != OPB->_int;
 116                                 break;
 117                         case OP_NE_FNC:
 118                                 OPC->_float = OPA->function != OPB->function;
 119                                 break;
 120
 121                 //==================
 122                         case OP_STORE_F:
 123                         case OP_STORE_ENT:
 124                         case OP_STORE_FLD:              // integers
 125                         case OP_STORE_S:
 126                         case OP_STORE_FNC:              // pointers
 127                                 OPB->_int = OPA->_int;
 128                                 break;
 129                         case OP_STORE_V:
 130                                 OPB->vector[0] = OPA->vector[0];
 131                                 OPB->vector[1] = OPA->vector[1];
 132                                 OPB->vector[2] = OPA->vector[2];
 133                                 break;
 134
 135                         case OP_STOREP_F:
 136                         case OP_STOREP_ENT:
 137                         case OP_STOREP_FLD:             // integers
 138                         case OP_STOREP_S:
 139                         case OP_STOREP_FNC:             // pointers
 140 #if PRBOUNDSCHECK
 141                                 if (OPB->_int < 0 || OPB->_int + 4 > pr_edictareasize)
 142                                 {
 143                                         pr_xstatement = st - pr_statements;
 144                                         PR_RunError("Progs attempted to write to an out of bounds edict\n");
 145                                         return;
 146                                 }
 147                                 if (OPB->_int % pr_edict_size < ((byte *)&sv.edicts->v - (byte *)sv.edicts))
 148                                 {
 149                                         pr_xstatement = st - pr_statements;
 150                                         PR_RunError("Progs attempted to write to an engine edict field\n");
 151                                         return;
 152                                 }
 153 #endif
 154                                 ptr = (eval_t *)((byte *)sv.edicts + OPB->_int);
 155                                 ptr->_int = OPA->_int;
 156                                 break;
 157                         case OP_STOREP_V:
 158 #if PRBOUNDSCHECK
 159                                 if (OPB->_int < 0 || OPB->_int + 12 > pr_edictareasize)
 160                                 {
 161                                         pr_xstatement = st - pr_statements;
 162                                         PR_RunError("Progs attempted to write to an out of bounds edict\n");
 163                                         return;
 164                                 }
 165 #endif
 166                                 ptr = (eval_t *)((byte *)sv.edicts + OPB->_int);
 167                                 ptr->vector[0] = OPA->vector[0];
 168                                 ptr->vector[1] = OPA->vector[1];
 169                                 ptr->vector[2] = OPA->vector[2];
 170                                 break;
 171
 172                         case OP_ADDRESS:
 173 #if PRBOUNDSCHECK
 174                                 if (OPA->edict <= 0)
 175                                 {
 176                                         if (OPA->edict == 0 && sv.state == ss_active)
 177                                         {
 178                                                 pr_xstatement = st - pr_statements;
 179                                                 PR_RunError ("assignment to world entity");
 180                                                 return;
 181                                         }
 182                                         else
 183                                         {
 184                                                 pr_xstatement = st - pr_statements;
 185                                                 PR_RunError("Progs attempted to address an out of bounds edict\n");
 186                                                 return;
 187                                         }
 188                                 }
 189                                 else if (OPA->edict >= pr_edictareasize)
 190                                 {
 191                                         pr_xstatement = st - pr_statements;
 192                                         PR_RunError("Progs attempted to address an out of bounds edict\n");
 193                                         return;
 194                                 }
 195                                 if (OPB->_int < 0 || OPB->_int >= progs->entityfields)
 196                                 {
 197                                         pr_xstatement = st - pr_statements;
 198                                         PR_RunError("Progs attempted to address an invalid field in an edict\n");
 199                                         return;
 200                                 }
 201 #else
 202                                 if (OPA->edict == 0 && sv.state == ss_active)
 203                                 {
 204                                         pr_xstatement = st - pr_statements;
 205                                         PR_RunError ("assignment to world entity");
 206                                         return;
 207                                 }
 208 #endif
 209                                 ed = PROG_TO_EDICT(OPA->edict);
 210                                 OPC->_int = (byte *)((int *)&ed->v + OPB->_int) - (byte *)sv.edicts;
 211                                 break;
 212
 213                         case OP_LOAD_F:
 214                         case OP_LOAD_FLD:
 215                         case OP_LOAD_ENT:
 216                         case OP_LOAD_S:
 217                         case OP_LOAD_FNC:
 218 #if PRBOUNDSCHECK
 219                                 if (OPA->edict < 0 || OPA->edict >= pr_edictareasize)
 220                                 {
 221                                         pr_xstatement = st - pr_statements;
 222                                         PR_RunError("Progs attempted to read an out of bounds edict number\n");
 223                                         return;
 224                                 }
 225                                 if (OPB->_int < 0 || OPB->_int >= progs->entityfields)
 226                                 {
 227                                         pr_xstatement = st - pr_statements;
 228                                         PR_RunError("Progs attempted to read an invalid field in an edict\n");
 229                                         return;
 230                                 }
 231 #endif
 232                                 ed = PROG_TO_EDICT(OPA->edict);
 233                                 OPC->_int = ((eval_t *)((int *)&ed->v + OPB->_int))->_int;
 234                                 break;
 235
 236                         case OP_LOAD_V:
 237 #if PRBOUNDSCHECK
 238                                 if (OPA->edict < 0 || OPA->edict >= pr_edictareasize)
 239                                 {
 240                                         pr_xstatement = st - pr_statements;
 241                                         PR_RunError("Progs attempted to read an out of bounds edict number\n");
 242                                         return;
 243                                 }
 244                                 if (OPB->_int < 0 || OPB->_int + 2 >= progs->entityfields)
 245                                 {
 246                                         pr_xstatement = st - pr_statements;
 247                                         PR_RunError("Progs attempted to read an invalid field in an edict\n");
 248                                         return;
 249                                 }
 250 #endif
 251                                 ed = PROG_TO_EDICT(OPA->edict);
 252                                 OPC->vector[0] = ((eval_t *)((int *)&ed->v + OPB->_int))->vector[0];
 253                                 OPC->vector[1] = ((eval_t *)((int *)&ed->v + OPB->_int))->vector[1];
 254                                 OPC->vector[2] = ((eval_t *)((int *)&ed->v + OPB->_int))->vector[2];
 255                                 break;
 256
 257                 //==================
 258
 259                         case OP_IFNOT:
 260                                 if (!OPA->_int)
 261                                         st += st->b - 1;        // offset the s++
 262                                 break;
 263
 264                         case OP_IF:
 265                                 if (OPA->_int)
 266                                         st += st->b - 1;        // offset the s++
 267                                 break;
 268
 269                         case OP_GOTO:
 270                                 st += st->a - 1;        // offset the s++
 271                                 break;
 272
 273                         case OP_CALL0:
 274                         case OP_CALL1:
 275                         case OP_CALL2:
 276                         case OP_CALL3:
 277                         case OP_CALL4:
 278                         case OP_CALL5:
 279                         case OP_CALL6:
 280                         case OP_CALL7:
 281                         case OP_CALL8:
 282                                 pr_xfunction->profile += profile - startprofile;
 283                                 startprofile = profile;
 284                                 pr_xstatement = st - pr_statements;
 285                                 pr_argc = st->op - OP_CALL0;
 286                                 if (!OPA->function)
 287                                         PR_RunError ("NULL function");
 288
 289                                 newf = &pr_functions[OPA->function];
 290
 291                                 if (newf->first_statement < 0)
 292                                 {
 293                                         // negative statements are built in functions
 294                                         if ((-newf->first_statement) >= pr_numbuiltins)
 295                                                 PR_RunError ("Bad builtin call number");
 296                                         pr_builtins[-newf->first_statement] ();
 297                                 }
 298                                 else
 299                                         st = pr_statements + PR_EnterFunction(newf);
 300                                 break;
 301
 302                         case OP_DONE:
 303                         case OP_RETURN:
 304                                 pr_globals[OFS_RETURN] = pr_globals[(unsigned short) st->a];
 305                                 pr_globals[OFS_RETURN+1] = pr_globals[(unsigned short) st->a+1];
 306                                 pr_globals[OFS_RETURN+2] = pr_globals[(unsigned short) st->a+2];
 307
 308                                 st = pr_statements + PR_LeaveFunction();
 309                                 if (pr_depth <= exitdepth)
 310                                         return;         // all done
 311                                 if (pr_trace != cachedpr_trace)
 312                                         goto chooseexecprogram;
 313                                 break;
 314
 315                         case OP_STATE:
 316                                 ed = PROG_TO_EDICT(pr_global_struct->self);
 317                                 ed->v.nextthink = pr_global_struct->time + 0.1;
 318                                 ed->v.frame = OPA->_float;
 319                                 ed->v.think = OPB->function;
 320                                 break;
 321
 322 // LordHavoc: to be enabled when Progs version 7 (or whatever it will be numbered) is finalized
 323 /*
 324                         case OP_ADD_I:
 325                                 OPC->_int = OPA->_int + OPB->_int;
 326                                 break;
 327                         case OP_ADD_IF:
 328                                 OPC->_int = OPA->_int + (int) OPB->_float;
 329                                 break;
 330                         case OP_ADD_FI:
 331                                 OPC->_float = OPA->_float + (float) OPB->_int;
 332                                 break;
 333                         case OP_SUB_I:
 334                                 OPC->_int = OPA->_int - OPB->_int;
 335                                 break;
 336                         case OP_SUB_IF:
 337                                 OPC->_int = OPA->_int - (int) OPB->_float;
 338                                 break;
 339                         case OP_SUB_FI:
 340                                 OPC->_float = OPA->_float - (float) OPB->_int;
 341                                 break;
 342                         case OP_MUL_I:
 343                                 OPC->_int = OPA->_int * OPB->_int;
 344                                 break;
 345                         case OP_MUL_IF:
 346                                 OPC->_int = OPA->_int * (int) OPB->_float;
 347                                 break;
 348                         case OP_MUL_FI:
 349                                 OPC->_float = OPA->_float * (float) OPB->_int;
 350                                 break;
 351                         case OP_MUL_VI:
 352                                 OPC->vector[0] = (float) OPB->_int * OPA->vector[0];
 353                                 OPC->vector[1] = (float) OPB->_int * OPA->vector[1];
 354                                 OPC->vector[2] = (float) OPB->_int * OPA->vector[2];
 355                                 break;
 356                         case OP_DIV_VF:
 357                                 {
 358                                         float temp = 1.0f / OPB->_float;
 359                                         OPC->vector[0] = temp * OPA->vector[0];
 360                                         OPC->vector[1] = temp * OPA->vector[1];
 361                                         OPC->vector[2] = temp * OPA->vector[2];
 362                                 }
 363                                 break;
 364                         case OP_DIV_I:
 365                                 OPC->_int = OPA->_int / OPB->_int;
 366                                 break;
 367                         case OP_DIV_IF:
 368                                 OPC->_int = OPA->_int / (int) OPB->_float;
 369                                 break;
 370                         case OP_DIV_FI:
 371                                 OPC->_float = OPA->_float / (float) OPB->_int;
 372                                 break;
 373                         case OP_CONV_IF:
 374                                 OPC->_float = OPA->_int;
 375                                 break;
 376                         case OP_CONV_FI:
 377                                 OPC->_int = OPA->_float;
 378                                 break;
 379                         case OP_BITAND_I:
 380                                 OPC->_int = OPA->_int & OPB->_int;
 381                                 break;
 382                         case OP_BITOR_I:
 383                                 OPC->_int = OPA->_int | OPB->_int;
 384                                 break;
 385                         case OP_BITAND_IF:
 386                                 OPC->_int = OPA->_int & (int)OPB->_float;
 387                                 break;
 388                         case OP_BITOR_IF:
 389                                 OPC->_int = OPA->_int | (int)OPB->_float;
 390                                 break;
 391                         case OP_BITAND_FI:
 392                                 OPC->_float = (int)OPA->_float & OPB->_int;
 393                                 break;
 394                         case OP_BITOR_FI:
 395                                 OPC->_float = (int)OPA->_float | OPB->_int;
 396                                 break;
 397                         case OP_GE_I:
 398                                 OPC->_float = OPA->_int >= OPB->_int;
 399                                 break;
 400                         case OP_LE_I:
 401                                 OPC->_float = OPA->_int <= OPB->_int;
 402                                 break;
 403                         case OP_GT_I:
 404                                 OPC->_float = OPA->_int > OPB->_int;
 405                                 break;
 406                         case OP_LT_I:
 407                                 OPC->_float = OPA->_int < OPB->_int;
 408                                 break;
 409                         case OP_AND_I:
 410                                 OPC->_float = OPA->_int && OPB->_int;
 411                                 break;
 412                         case OP_OR_I:
 413                                 OPC->_float = OPA->_int || OPB->_int;
 414                                 break;
 415                         case OP_GE_IF:
 416                                 OPC->_float = (float)OPA->_int >= OPB->_float;
 417                                 break;
 418                         case OP_LE_IF:
 419                                 OPC->_float = (float)OPA->_int <= OPB->_float;
 420                                 break;
 421                         case OP_GT_IF:
 422                                 OPC->_float = (float)OPA->_int > OPB->_float;
 423                                 break;
 424                         case OP_LT_IF:
 425                                 OPC->_float = (float)OPA->_int < OPB->_float;
 426                                 break;
 427                         case OP_AND_IF:
 428                                 OPC->_float = (float)OPA->_int && OPB->_float;
 429                                 break;
 430                         case OP_OR_IF:
 431                                 OPC->_float = (float)OPA->_int || OPB->_float;
 432                                 break;
 433                         case OP_GE_FI:
 434                                 OPC->_float = OPA->_float >= (float)OPB->_int;
 435                                 break;
 436                         case OP_LE_FI:
 437                                 OPC->_float = OPA->_float <= (float)OPB->_int;
 438                                 break;
 439                         case OP_GT_FI:
 440                                 OPC->_float = OPA->_float > (float)OPB->_int;
 441                                 break;
 442                         case OP_LT_FI:
 443                                 OPC->_float = OPA->_float < (float)OPB->_int;
 444                                 break;
 445                         case OP_AND_FI:
 446                                 OPC->_float = OPA->_float && (float)OPB->_int;
 447                                 break;
 448                         case OP_OR_FI:
 449                                 OPC->_float = OPA->_float || (float)OPB->_int;
 450                                 break;
 451                         case OP_NOT_I:
 452                                 OPC->_float = !OPA->_int;
 453                                 break;
 454                         case OP_EQ_I:
 455                                 OPC->_float = OPA->_int == OPB->_int;
 456                                 break;
 457                         case OP_EQ_IF:
 458                                 OPC->_float = (float)OPA->_int == OPB->_float;
 459                                 break;
 460                         case OP_EQ_FI:
 461                                 OPC->_float = OPA->_float == (float)OPB->_int;
 462                                 break;
 463                         case OP_NE_I:
 464                                 OPC->_float = OPA->_int != OPB->_int;
 465                                 break;
 466                         case OP_NE_IF:
 467                                 OPC->_float = (float)OPA->_int != OPB->_float;
 468                                 break;
 469                         case OP_NE_FI:
 470                                 OPC->_float = OPA->_float != (float)OPB->_int;
 471                                 break;
 472                         case OP_STORE_I:
 473                                 OPB->_int = OPA->_int;
 474                                 break;
 475                         case OP_STOREP_I:
 476 #if PRBOUNDSCHECK
 477                                 if (OPB->_int < 0 || OPB->_int + 4 > pr_edictareasize)
 478                                 {
 479                                         pr_xstatement = st - pr_statements;
 480                                         PR_RunError("Progs attempted to write to an out of bounds edict\n");
 481                                         return;
 482                                 }
 483                                 if (OPB->_int % pr_edict_size < ((byte *)&sv.edicts->v - (byte *)sv.edicts))
 484                                 {
 485                                         pr_xstatement = st - pr_statements;
 486                                         PR_RunError("Progs attempted to write to an engine edict field\n");
 487                                         return;
 488                                 }
 489 #endif
 490                                 ptr = (eval_t *)((byte *)sv.edicts + OPB->_int);
 491                                 ptr->_int = OPA->_int;
 492                                 break;
 493                         case OP_LOAD_I:
 494 #if PRBOUNDSCHECK
 495                                 if (OPA->edict < 0 || OPA->edict >= pr_edictareasize)
 496                                 {
 497                                         pr_xstatement = st - pr_statements;
 498                                         PR_RunError("Progs attempted to read an out of bounds edict number\n");
 499                                         return;
 500                                 }
 501                                 if (OPB->_int < 0 || OPB->_int >= progs->entityfields)
 502                                 {
 503                                         pr_xstatement = st - pr_statements;
 504                                         PR_RunError("Progs attempted to read an invalid field in an edict\n");
 505                                         return;
 506                                 }
 507 #endif
 508                                 ed = PROG_TO_EDICT(OPA->edict);
 509                                 OPC->_int = ((eval_t *)((int *)&ed->v + OPB->_int))->_int;
 510                                 break;
 511
 512                         case OP_GSTOREP_I:
 513                         case OP_GSTOREP_F:
 514                         case OP_GSTOREP_ENT:
 515                         case OP_GSTOREP_FLD:            // integers
 516                         case OP_GSTOREP_S:
 517                         case OP_GSTOREP_FNC:            // pointers
 518 #if PRBOUNDSCHECK
 519                                 if (OPB->_int < 0 || OPB->_int >= pr_globaldefs)
 520                                 {
 521                                         pr_xstatement = st - pr_statements;
 522                                         PR_RunError("Progs attempted to write to an invalid indexed global\n");
 523                                         return;
 524                                 }
 525 #endif
 526                                 pr_globals[OPB->_int] = OPA->_float;
 527                                 break;
 528                         case OP_GSTOREP_V:
 529 #if PRBOUNDSCHECK
 530                                 if (OPB->_int < 0 || OPB->_int + 2 >= pr_globaldefs)
 531                                 {
 532                                         pr_xstatement = st - pr_statements;
 533                                         PR_RunError("Progs attempted to write to an invalid indexed global\n");
 534                                         return;
 535                                 }
 536 #endif
 537                                 pr_globals[OPB->_int  ] = OPA->vector[0];
 538                                 pr_globals[OPB->_int+1] = OPA->vector[1];
 539                                 pr_globals[OPB->_int+2] = OPA->vector[2];
 540                                 break;
 541
 542                         case OP_GADDRESS:
 543                                 i = OPA->_int + (int) OPB->_float;
 544 #if PRBOUNDSCHECK
 545                                 if (i < 0 || i >= pr_globaldefs)
 546                                 {
 547                                         pr_xstatement = st - pr_statements;
 548                                         PR_RunError("Progs attempted to address an out of bounds global\n");
 549                                         return;
 550                                 }
 551 #endif
 552                                 OPC->_float = pr_globals[i];
 553                                 break;
 554
 555                         case OP_GLOAD_I:
 556                         case OP_GLOAD_F:
 557                         case OP_GLOAD_FLD:
 558                         case OP_GLOAD_ENT:
 559                         case OP_GLOAD_S:
 560                         case OP_GLOAD_FNC:
 561 #if PRBOUNDSCHECK
 562                                 if (OPA->_int < 0 || OPA->_int >= pr_globaldefs)
 563                                 {
 564                                         pr_xstatement = st - pr_statements;
 565                                         PR_RunError("Progs attempted to read an invalid indexed global\n");
 566                                         return;
 567                                 }
 568 #endif
 569                                 OPC->_float = pr_globals[OPA->_int];
 570                                 break;
 571
 572                         case OP_GLOAD_V:
 573 #if PRBOUNDSCHECK
 574                                 if (OPA->_int < 0 || OPA->_int + 2 >= pr_globaldefs)
 575                                 {
 576                                         pr_xstatement = st - pr_statements;
 577                                         PR_RunError("Progs attempted to read an invalid indexed global\n");
 578                                         return;
 579                                 }
 580 #endif
 581                                 OPC->vector[0] = pr_globals[OPA->_int  ];
 582                                 OPC->vector[1] = pr_globals[OPA->_int+1];
 583                                 OPC->vector[2] = pr_globals[OPA->_int+2];
 584                                 break;
 585
 586                         case OP_BOUNDCHECK:
 587                                 if (OPA->_int < 0 || OPA->_int >= st->b)
 588                                 {
 589                                         pr_xstatement = st - pr_statements;
 590                                         PR_RunError("Progs boundcheck failed at line number %d, value is < 0 or >= %d\n", st->b, st->c);
 591                                         return;
 592                                 }
 593                                 break;
 594
 595 */
 596
 597                         default:
 598                                 pr_xstatement = st - pr_statements;
 599                                 PR_RunError ("Bad opcode %i", st->op);
 600                         }
 601                 }