misc/source/fteqcc-src/pr_exec.c

   1 #define PROGSUSED
   2 #include "progsint.h"
   3 //#include "editor.h"
   4
   5 #define HunkAlloc BADGDFG sdfhhsf FHS
   6
   7
   8 #define Host_Error Sys_Error
   9
  10 // I put the following here to resolve "undefined reference to `__imp__vsnprintf'" with MinGW64 ~ Moodles
  11 #ifdef _WIN32
  12         #if (_MSC_VER >= 1400)
  13                 //with MSVC 8, use MS extensions
  14                 #define snprintf linuxlike_snprintf_vc8
  15                 int VARGS linuxlike_snprintf_vc8(char *buffer, int size, const char *format, ...) LIKEPRINTF(3);
  16                 #define vsnprintf(a, b, c, d) vsnprintf_s(a, b, _TRUNCATE, c, d)
  17         #else
  18                 //msvc crap
  19                 #define snprintf linuxlike_snprintf
  20                 int VARGS linuxlike_snprintf(char *buffer, int size, const char *format, ...) LIKEPRINTF(3);
  21                 #define vsnprintf linuxlike_vsnprintf
  22                 int VARGS linuxlike_vsnprintf(char *buffer, int size, const char *format, va_list argptr);
  23         #endif
  24 #endif
  25
  26
  27 //=============================================================================
  28
  29 /*
  30 =================
  31 PR_PrintStatement
  32 =================
  33 */
  34 /*
  35 void PR_PrintStatement (progfuncs_t *progfuncs, dstatement16_t *s)
  36 {
  37         int             i;
  38 printf("PR_PrintStatement is unsupported\n");
  39 return;
  40         if ( (unsigned)s->op < OP_NUMOPS)
  41         {
  42                 printf ("%s ",  pr_opcodes[s->op].name);
  43                 i = strlen(pr_opcodes[s->op].name);
  44                 for ( ; i<10 ; i++)
  45                         printf (" ");
  46         }
  47
  48         if (s->op == OP_IF || s->op == OP_IFNOT)
  49                 printf ("%sbranch %i",PR_GlobalString(progfuncs, s->a),s->b);
  50         else if (s->op == OP_GOTO)
  51         {
  52                 printf ("branch %i",s->a);
  53         }
  54         else if ( (unsigned)(s->op - OP_STORE_F) < 6)
  55         {
  56                 printf ("%s",PR_GlobalString(progfuncs, s->a));
  57                 printf ("%s", PR_GlobalStringNoContents(progfuncs, s->b));
  58         }
  59         else
  60         {
  61                 if (s->a)
  62                         printf ("%s",PR_GlobalString(progfuncs, s->a));
  63                 if (s->b)
  64                         printf ("%s",PR_GlobalString(progfuncs, s->b));
  65                 if (s->c)
  66                         printf ("%s", PR_GlobalStringNoContents(progfuncs, s->c));
  67         }
  68         printf ("\n");
  69 }
  70 */
  71
  72 /*
  73 ============
  74 PR_StackTrace
  75 ============
  76 */
  77 char *QC_ucase(char *str)
  78 {
  79         static char s[1024];
  80         strcpy(s, str);
  81         str = s;
  82
  83         while(*str)
  84         {
  85                 if (*str >= 'a' && *str <= 'z')
  86                         *str = *str - 'a' + 'A';
  87                 str++;
  88         }
  89         return s;
  90 }
  91
  92 void PR_StackTrace (progfuncs_t *progfuncs)
  93 {
  94         dfunction_t     *f;
  95         int                     i;
  96         int progs;
  97
  98 #ifdef STACKTRACE
  99         int arg;
 100         int *globalbase;
 101 #endif
 102         progs = -1;
 103
 104         if (pr_depth == 0)
 105         {
 106                 printf ("<NO STACK>\n");
 107                 return;
 108         }
 109
 110 #ifdef STACKTRACE
 111         globalbase = (int *)pr_globals + pr_xfunction->parm_start - pr_xfunction->locals;
 112 #endif
 113
 114         pr_stack[pr_depth].f = pr_xfunction;
 115         pr_stack[pr_depth].s = pr_xstatement;
 116         for (i=pr_depth ; i>0 ; i--)
 117         {
 118                 f = pr_stack[i].f;
 119
 120                 if (!f)
 121                 {
 122                         printf ("<NO FUNCTION>\n");
 123                 }
 124                 else
 125                 {
 126                         if (pr_stack[i].progsnum != progs)
 127                         {
 128                                 progs = pr_stack[i].progsnum;
 129
 130                                 printf ("<%s>\n", pr_progstate[progs].filename);
 131                         }
 132                         if (!f->s_file)
 133                                 printf ("stripped     : %s\n", f->s_name+progfuncs->stringtable);
 134                         else
 135                         {
 136                                 if (pr_progstate[progs].linenums)
 137                                         printf ("%12s %i : %s\n", f->s_file+progfuncs->stringtable, pr_progstate[progs].linenums[pr_stack[i].s], f->s_name+progfuncs->stringtable);
 138                                 else
 139                                         printf ("%12s : %s\n", f->s_file+progfuncs->stringtable, f->s_name+progfuncs->stringtable);
 140                         }
 141
 142 #ifdef STACKTRACE
 143
 144                         for (arg = 0; arg < f->locals; arg++)
 145                         {
 146                                 ddef16_t *local;
 147                                 local = ED_GlobalAtOfs16(progfuncs, f->parm_start+arg);
 148                                 if (!local)
 149                                 {
 150                                         printf("    ofs %i: %f : %i\n", f->parm_start+arg, *(float *)(globalbase - f->locals+arg), *(int *)(globalbase - f->locals+arg) );
 151                                 }
 152                                 else
 153                                 {
 154                                         printf("    %s: %s\n", local->s_name+progfuncs->stringtable, PR_ValueString(progfuncs, local->type, (eval_t*)(globalbase - f->locals+arg)));
 155                                         if (local->type == ev_vector)
 156                                                 arg+=2;
 157                                 }
 158                         }
 159
 160                         if (i == pr_depth)
 161                                 globalbase = localstack + localstack_used;
 162                         else
 163                                 globalbase -= f->locals;
 164 #endif
 165                 }
 166         }
 167 }
 168
 169 /*
 170 ============
 171 PR_Profile_f
 172
 173 ============
 174 */
 175 /*
 176 void PR_Profile_f (void)
 177 {
 178         dfunction_t     *f, *best;
 179         int                     max;
 180         int                     num;
 181         unsigned int                    i;
 182
 183         num = 0;
 184         do
 185         {
 186                 max = 0;
 187                 best = NULL;
 188                 for (i=0 ; i<pr_progs->numfunctions ; i++)
 189                 {
 190                         f = &pr_functions[i];
 191                         if (f->profile > max && f->first_statement >=0)
 192                         {
 193                                 max = f->profile;
 194                                 best = f;
 195                         }
 196                 }
 197                 if (best)
 198                 {
 199                         if (num < 10)
 200                                 printf ("%7i %s\n", best->profile, best->s_name);
 201                         num++;
 202                         best->profile = 0;
 203                 }
 204         } while (best);
 205 }
 206 */
 207
 208
 209 /*
 210 ============
 211 PR_RunError
 212
 213 Aborts the currently executing function
 214 ============
 215 */
 216 void VARGS PR_RunError (progfuncs_t *progfuncs, char *error, ...)
 217 {
 218         va_list         argptr;
 219         char            string[1024];
 220
 221         va_start (argptr,error);
 222         Q_vsnprintf (string,sizeof(string)-1, error,argptr);
 223         va_end (argptr);
 224
 225 //      {
 226 //              void SV_EndRedirect (void);
 227 //              SV_EndRedirect();
 228 //      }
 229
 230 //      PR_PrintStatement (pr_statements + pr_xstatement);
 231         PR_StackTrace (progfuncs);
 232         printf ("\n");
 233
 234 //editbadfile(pr_strings + pr_xfunction->s_file, -1);
 235
 236 //      pr_depth = 0;           // dump the stack so host_error can shutdown functions
 237 //      prinst->exitdepth = 0;
 238
 239         Abort ("%s", string);
 240 }
 241
 242 /*
 243 ============================================================================
 244 PR_ExecuteProgram
 245
 246 The interpretation main loop
 247 ============================================================================
 248 */
 249
 250 /*
 251 ====================
 252 PR_EnterFunction
 253
 254 Returns the new program statement counter
 255 ====================
 256 */
 257 void    PR_AbortStack                   (progfuncs_t *progfuncs);
 258 int ASMCALL PR_EnterFunction (progfuncs_t *progfuncs, dfunction_t *f, int progsnum)
 259 {
 260         int             i, j, c, o;
 261
 262         pr_stack[pr_depth].s = pr_xstatement;
 263         pr_stack[pr_depth].f = pr_xfunction;
 264         pr_stack[pr_depth].progsnum = progsnum;
 265         pr_stack[pr_depth].pushed = pr_spushed;
 266         pr_depth++;
 267         if (pr_depth == MAX_STACK_DEPTH)
 268         {
 269                 pr_depth--;
 270                 PR_StackTrace (progfuncs);
 271
 272                 printf ("stack overflow on call to %s\n", progfuncs->stringtable+f->s_name);
 273
 274                 //comment this out if you want the progs to try to continue anyway (could cause infinate loops)
 275                 PR_AbortStack(progfuncs);
 276                 Abort("Stack Overflow in %s\n", progfuncs->stringtable+f->s_name);
 277                 return pr_xstatement;
 278         }
 279
 280         localstack_used += pr_spushed;  //make sure the call doesn't hurt pushed pointers
 281
 282 // save off any locals that the new function steps on (to a side place, fromwhere they are restored on exit)
 283         c = f->locals;
 284         if (localstack_used + c > LOCALSTACK_SIZE)
 285         {
 286                 localstack_used -= pr_spushed;
 287                 pr_depth--;
 288                 PR_RunError (progfuncs, "PR_ExecuteProgram: locals stack overflow\n");
 289         }
 290
 291         for (i=0 ; i < c ; i++)
 292                 localstack[localstack_used+i] = ((int *)pr_globals)[f->parm_start + i];
 293         localstack_used += c;
 294
 295 // copy parameters (set initial values)
 296         o = f->parm_start;
 297         for (i=0 ; i<f->numparms ; i++)
 298         {
 299                 for (j=0 ; j<f->parm_size[i] ; j++)
 300                 {
 301                         ((int *)pr_globals)[o] = ((int *)pr_globals)[OFS_PARM0+i*3+j];
 302                         o++;
 303                 }
 304         }
 305
 306         pr_xfunction = f;
 307         return f->first_statement - 1;  // offset the s++
 308 }
 309
 310 /*
 311 ====================
 312 PR_LeaveFunction
 313 ====================
 314 */
 315 int ASMCALL PR_LeaveFunction (progfuncs_t *progfuncs)
 316 {
 317         int             i, c;
 318
 319         if (pr_depth <= 0)
 320                 Sys_Error ("prog stack underflow");
 321
 322 // restore locals from the stack
 323         c = pr_xfunction->locals;
 324         localstack_used -= c;
 325         if (localstack_used < 0)
 326                 PR_RunError (progfuncs, "PR_ExecuteProgram: locals stack underflow\n");
 327
 328         for (i=0 ; i < c ; i++)
 329                 ((int *)pr_globals)[pr_xfunction->parm_start + i] = localstack[localstack_used+i];
 330
 331 // up stack
 332         pr_depth--;
 333         PR_MoveParms(progfuncs, pr_stack[pr_depth].progsnum, pr_typecurrent);
 334         PR_SwitchProgs(progfuncs, pr_stack[pr_depth].progsnum);
 335         pr_xfunction = pr_stack[pr_depth].f;
 336         pr_spushed = pr_stack[pr_depth].pushed;
 337
 338         localstack_used -= pr_spushed;
 339         return pr_stack[pr_depth].s;
 340 }
 341
 342 ddef32_t *ED_FindLocalOrGlobal(progfuncs_t *progfuncs, char *name, eval_t **val)
 343 {
 344         static ddef32_t def;
 345         ddef32_t *def32;
 346         ddef16_t *def16;
 347         int i;
 348
 349         switch (pr_progstate[pr_typecurrent].structtype)
 350         {
 351         case PST_DEFAULT:
 352         case PST_KKQWSV:
 353                 //this gets parms fine, but not locals
 354                 if (pr_xfunction)
 355                 for (i = 0; i < pr_xfunction->numparms; i++)
 356                 {
 357                         def16 = ED_GlobalAtOfs16(progfuncs, pr_xfunction->parm_start+i);
 358                         if (!def16)
 359                                 continue;
 360                         if (!strcmp(def16->s_name+progfuncs->stringtable, name))
 361                         {
 362                                 *val = (eval_t *)&pr_progstate[pr_typecurrent].globals[pr_xfunction->parm_start+i];
 363
 364                                 //we need something like this for functions that are not the top layer
 365         //                      *val = (eval_t *)&localstack[localstack_used-pr_xfunction->numparms*4];
 366                                 def.ofs = def16->ofs;
 367                                 def.s_name = def16->s_name;
 368                                 def.type = def16->type;
 369                                 return &def;
 370                         }
 371                 }
 372                 def16 = ED_FindGlobal16(progfuncs, name);
 373                 if (!def16)
 374                         return NULL;
 375                 def.ofs = def16->ofs;
 376                 def.type = def16->type;
 377                 def.s_name = def16->s_name;
 378                 def32 = &def;
 379                 break;
 380         case PST_QTEST:
 381         case PST_FTE32:
 382                 //this gets parms fine, but not locals
 383                 if (pr_xfunction)
 384                 for (i = 0; i < pr_xfunction->numparms; i++)
 385                 {
 386                         def32 = ED_GlobalAtOfs32(progfuncs, pr_xfunction->parm_start+i);
 387                         if (!def32)
 388                                 continue;
 389                         if (!strcmp(def32->s_name+progfuncs->stringtable, name))
 390                         {
 391                                 *val = (eval_t *)&pr_progstate[pr_typecurrent].globals[pr_xfunction->parm_start+i];
 392
 393                                 //we need something like this for functions that are not the top layer
 394         //                      *val = (eval_t *)&localstack[localstack_used-pr_xfunction->numparms*4];
 395                                 return def32;
 396                         }
 397                 }
 398                 def32 = ED_FindGlobal32(progfuncs, name);
 399                 if (!def32)
 400                         return NULL;
 401                 break;
 402         default:
 403                 Sys_Error("Bad struct type in ED_FindLocalOrGlobal");
 404                 def32 = NULL;
 405         }
 406
 407         *val = (eval_t *)&pr_progstate[pr_typecurrent].globals[def32->ofs];
 408         return &def;
 409 }
 410
 411 char *COM_TrimString(char *str)
 412 {
 413         int i;
 414         static char buffer[256];
 415         while (*str <= ' ' && *str>'\0')
 416                 str++;
 417
 418         for (i = 0; i < 255; i++)
 419         {
 420                 if (*str <= ' ')
 421                         break;
 422                 buffer[i] = *str++;
 423         }
 424         buffer[i] = '\0';
 425         return buffer;
 426 }
 427
 428 char *EvaluateDebugString(progfuncs_t *progfuncs, char *key)
 429 {
 430         static char buf[256];
 431         char *c, *c2;
 432         ddef32_t *def;
 433         fdef_t *fdef;
 434         eval_t *val;
 435         char *assignment;
 436         int type;
 437         ddef32_t fakedef;
 438         eval_t fakeval;
 439
 440         assignment = strchr(key, '=');
 441         if (assignment)
 442                 *assignment = '\0';
 443
 444         c = strchr(key, '.');
 445         if (c) *c = '\0';
 446         def = ED_FindLocalOrGlobal(progfuncs, key, &val);
 447         if (!def)
 448         {
 449                 if (atoi(key))
 450                 {
 451                         def = &fakedef;
 452                         def->ofs = 0;
 453                         def->type = ev_entity;
 454                         val = &fakeval;
 455                         val->edict = atoi(key);
 456                 }
 457         }
 458         if (c) *c = '.';
 459         if (!def)
 460         {
 461                 return "(Bad string)";
 462         }
 463         type = def->type;
 464
 465         //go through ent vars
 466         c = strchr(key, '.');
 467         while(c)
 468         {
 469                 c2 = c+1;
 470                 c = strchr(c2, '.');
 471                 type = type &~DEF_SAVEGLOBAL;
 472                 if (current_progstate->types)
 473                         type = current_progstate->types[type].type;
 474                 if (type != ev_entity)
 475                         return "'.' without entity";
 476                 if (c)*c = '\0';
 477                 fdef = ED_FindField(progfuncs, COM_TrimString(c2));
 478                 if (c)*c = '.';
 479                 if (!fdef)
 480                         return "(Bad string)";
 481                 val = (eval_t *) (((char *)PROG_TO_EDICT(progfuncs, val->_int)->fields) + fdef->ofs*4);
 482                 type = fdef->type;
 483         }
 484
 485         if (assignment)
 486         {
 487                 assignment++;
 488                 switch (type&~DEF_SAVEGLOBAL)
 489                 {
 490                 case ev_string:
 491                         *(string_t *)val = PR_StringToProgs(progfuncs, ED_NewString (progfuncs, assignment, 0));
 492                         break;
 493
 494                 case ev_float:
 495                         *(float *)val = (float)atof (assignment);
 496                         break;
 497
 498                 case ev_integer:
 499                         *(int *)val = atoi (assignment);
 500                         break;
 501
 502 /*              case ev_vector:
 503                         strcpy (string, assignment);
 504                         v = string;
 505                         w = string;
 506                         for (i=0 ; i<3 ; i++)
 507                         {
 508                                 while (*v && *v != ' ')
 509                                         v++;
 510                                 *v = 0;
 511                                 ((float *)d)[i] = (float)atof (w);
 512                                 w = v = v+1;
 513                         }
 514                         break;
 515 */
 516                 case ev_entity:
 517                         *(int *)val = EDICT_TO_PROG(progfuncs, EDICT_NUM(progfuncs, atoi (assignment)));
 518                         break;
 519
 520                 case ev_field:
 521                         fdef = ED_FindField (progfuncs, assignment);
 522                         if (!fdef)
 523                         {
 524                                 size_t l,nl = strlen(assignment);
 525                                 strcpy(buf, "Can't find field ");
 526                                 l = strlen(buf);
 527                                 if (nl > sizeof(buf)-l-2)
 528                                         nl = sizeof(buf)-l-2;
 529                                 memcpy(buf+l, assignment, nl);
 530                                 assignment[l+nl+0] = '\n';
 531                                 assignment[l+nl+1] = 0;
 532                                 return buf;
 533                         }
 534                         *(int *)val = G_INT(fdef->ofs);
 535                         break;
 536
 537                 case ev_function:
 538                         {
 539                                 dfunction_t *func;
 540                                 int i;
 541                                 int progsnum = -1;
 542                                 char *s = assignment;
 543                                 if (s[0] && s[1] == ':')
 544                                 {
 545                                         progsnum = atoi(s);
 546                                         s+=2;
 547                                 }
 548                                 else if (s[0] && s[1] && s[2] == ':')
 549                                 {
 550                                         progsnum = atoi(s);
 551                                         s+=3;
 552                                 }
 553
 554                                 func = ED_FindFunction (progfuncs, s, &i, progsnum);
 555                                 if (!func)
 556                                 {
 557                                         size_t l,nl = strlen(s);
 558
 559                                         assignment[-1] = '=';
 560
 561                                         strcpy(buf, "Can't find field ");
 562                                         l = strlen(buf);
 563                                         if (nl > sizeof(buf)-l-2)
 564                                                 nl = sizeof(buf)-l-2;
 565                                         memcpy(buf+l, assignment, nl);
 566                                         assignment[l+nl+0] = '\n';
 567                                         assignment[l+nl+1] = 0;
 568                                         return buf;
 569                                 }
 570                                 *(func_t *)val = (func - pr_progstate[i].functions) | (i<<24);
 571                         }
 572                         break;
 573
 574                 default:
 575                         break;
 576
 577                 }
 578                 assignment[-1] = '=';
 579         }
 580         strcpy(buf, PR_ValueString(progfuncs, type, val));
 581
 582         return buf;
 583 }
 584
 585 int debugstatement;
 586 //int EditorHighlightLine(window_t *wnd, int line);
 587 void SetExecutionToLine(progfuncs_t *progfuncs, int linenum)
 588 {
 589         int pn = pr_typecurrent;
 590         int snum;
 591         dfunction_t *f = pr_xfunction;
 592
 593         switch(current_progstate->structtype)
 594         {
 595         case PST_DEFAULT:
 596         case PST_QTEST:
 597                 for (snum = f->first_statement; pr_progstate[pn].linenums[snum] < linenum; snum++)
 598                 {
 599                         if (pr_statements16[snum].op == OP_DONE)
 600                                 return;
 601                 }
 602                 break;
 603         case PST_KKQWSV:
 604         case PST_FTE32:
 605                 for (snum = f->first_statement; pr_progstate[pn].linenums[snum] < linenum; snum++)
 606                 {
 607                         if (pr_statements32[snum].op == OP_DONE)
 608                                 return;
 609                 }
 610                 break;
 611         default:
 612                 Sys_Error("Bad struct type");
 613                 snum = 0;
 614         }
 615         debugstatement = snum;
 616 //      EditorHighlightLine(editwnd, pr_progstate[pn].linenums[snum]);
 617 }
 618
 619 //0 clear. 1 set, 2 toggle, 3 check
 620 int PR_ToggleBreakpoint(progfuncs_t *progfuncs, char *filename, int linenum, int flag)  //write alternate route to work by function name.
 621 {
 622         int ret=0;
 623         unsigned int fl;
 624         unsigned int i;
 625         int pn = pr_typecurrent;
 626         dfunction_t *f;
 627         int op = 0; //warning about not being initialized before use
 628
 629         for (pn = 0; (unsigned)pn < maxprogs; pn++)
 630         {
 631                 if (!pr_progstate || !pr_progstate[pn].progs)
 632                         continue;
 633
 634                 if (linenum)    //linenum is set means to set the breakpoint on a file and line
 635                 {
 636                         if (!pr_progstate[pn].linenums)
 637                                 continue;
 638
 639                         for (f = pr_progstate[pn].functions, fl = 0; fl < pr_progstate[pn].progs->numfunctions; f++, fl++)
 640                         {
 641                                 if (!stricmp(f->s_file+progfuncs->stringtable, filename))
 642                                 {
 643                                         for (i = f->first_statement; ; i++)
 644                                         {
 645                                                 if (pr_progstate[pn].linenums[i] >= linenum)
 646                                                 {
 647                                                         fl = pr_progstate[pn].linenums[i];
 648                                                         for (; ; i++)
 649                                                         {
 650                                                                 if ((unsigned int)pr_progstate[pn].linenums[i] > fl)
 651                                                                         break;
 652
 653                                                                 switch(pr_progstate[pn].structtype)
 654                                                                 {
 655                                                                 case PST_DEFAULT:
 656                                                                 case PST_QTEST:
 657                                                                         op = ((dstatement16_t*)pr_progstate[pn].statements + i)->op;
 658                                                                         break;
 659                                                                 case PST_KKQWSV:
 660                                                                 case PST_FTE32:
 661                                                                         op = ((dstatement32_t*)pr_progstate[pn].statements + i)->op;
 662                                                                         break;
 663                                                                 default:
 664                                                                         Sys_Error("Bad structtype");
 665                                                                         op = 0;
 666                                                                 }
 667                                                                 switch (flag)
 668                                                                 {
 669                                                                 default:
 670                                                                         if (op & 0x8000)
 671                                                                         {
 672                                                                                 op &= ~0x8000;
 673                                                                                 ret = false;
 674                                                                                 flag = 0;
 675                                                                         }
 676                                                                         else
 677                                                                         {
 678                                                                                 op |= 0x8000;
 679                                                                                 ret = true;
 680                                                                                 flag = 1;
 681                                                                         }
 682                                                                         break;
 683                                                                 case 0:
 684                                                                         op &= ~0x8000;
 685                                                                         ret = false;
 686                                                                         break;
 687                                                                 case 1:
 688                                                                         op |= 0x8000;
 689                                                                         ret = true;
 690                                                                         break;
 691                                                                 case 3:
 692                                                                         if (op & 0x8000)
 693                                                                                 return true;
 694                                                                 }
 695                                                                 switch(pr_progstate[pn].structtype)
 696                                                                 {
 697                                                                 case PST_DEFAULT:
 698                                                                 case PST_QTEST:
 699                                                                         ((dstatement16_t*)pr_progstate[pn].statements + i)->op = op;
 700                                                                         break;
 701                                                                 case PST_KKQWSV:
 702                                                                 case PST_FTE32:
 703                                                                         ((dstatement32_t*)pr_progstate[pn].statements + i)->op = op;
 704                                                                         break;
 705                                                                 default:
 706                                                                         Sys_Error("Bad structtype");
 707                                                                         op = 0;
 708                                                                 }
 709                                                         }
 710                                                         goto cont;
 711                                                 }
 712                                         }
 713                                 }
 714                         }
 715                 }
 716                 else    //set the breakpoint on the first statement of the function specified.
 717                 {
 718                         for (f = pr_progstate[pn].functions, fl = 0; fl < pr_progstate[pn].progs->numfunctions; f++, fl++)
 719                         {
 720                                 if (!strcmp(f->s_name+progfuncs->stringtable, filename))
 721                                 {
 722                                         i = f->first_statement;
 723                                         switch(pr_progstate[pn].structtype)
 724                                         {
 725                                         case PST_DEFAULT:
 726                                         case PST_QTEST:
 727                                                 op = ((dstatement16_t*)pr_progstate[pn].statements + i)->op;
 728                                                 break;
 729                                         case PST_KKQWSV:
 730                                         case PST_FTE32:
 731                                                 op = ((dstatement32_t*)pr_progstate[pn].statements + i)->op;
 732                                                 break;
 733                                         default:
 734                                                 Sys_Error("Bad structtype");
 735                                         }
 736                                         switch (flag)
 737                                         {
 738                                         default:
 739                                                 if (op & 0x8000)
 740                                                 {
 741                                                         op &= ~0x8000;
 742                                                         ret = false;
 743                                                         flag = 0;
 744                                                 }
 745                                                 else
 746                                                 {
 747                                                         op |= 0x8000;
 748                                                         ret = true;
 749                                                         flag = 1;
 750                                                 }
 751                                                 break;
 752                                         case 0:
 753                                                 op &= ~0x8000;
 754                                                 ret = false;
 755                                                 break;
 756                                         case 1:
 757                                                 op |= 0x8000;
 758                                                 ret = true;
 759                                                 break;
 760                                         case 3:
 761                                                 if (op & 0x8000)
 762                                                         return true;
 763                                         }
 764                                         switch(pr_progstate[pn].structtype)
 765                                         {
 766                                         case PST_DEFAULT:
 767                                         case PST_QTEST:
 768                                                 ((dstatement16_t*)pr_progstate[pn].statements + i)->op = op;
 769                                                 break;
 770                                         case PST_KKQWSV:
 771                                         case PST_FTE32:
 772                                                 ((dstatement32_t*)pr_progstate[pn].statements + i)->op = op;
 773                                                 break;
 774                                         default:
 775                                                 Sys_Error("Bad structtype");
 776                                         }
 777                                         break;
 778                                 }
 779                         }
 780                 }
 781 cont:
 782                 continue;
 783         }
 784
 785         return ret;
 786 }
 787
 788 int ShowStep(progfuncs_t *progfuncs, int statement)
 789 {
 790 //      return statement;
 791 //      texture realcursortex;
 792 static int lastline = 0;
 793 static char *lastfile = 0;
 794
 795         int pn = pr_typecurrent;
 796         int i;
 797         dfunction_t *f = pr_xfunction;
 798
 799         if (f && pr_progstate[pn].linenums && externs->useeditor)
 800         {
 801                 if (lastline == pr_progstate[pn].linenums[statement] && lastfile == f->s_file+progfuncs->stringtable)
 802                         return statement;       //no info/same line as last time
 803
 804                 lastline = pr_progstate[pn].linenums[statement];
 805                 lastfile = f->s_file+progfuncs->stringtable;
 806
 807                 lastline = externs->useeditor(progfuncs, lastfile, lastline, 0, NULL);
 808
 809                 if (pr_progstate[pn].linenums[statement] != lastline)
 810                 {
 811                         for (i = f->first_statement; ; i++)
 812                         {
 813                                 if (lastline == pr_progstate[pn].linenums[i])
 814                                 {
 815                                         return i;
 816                                 }
 817                                 else if (lastline <= pr_progstate[pn].linenums[i])
 818                                 {
 819                                         return statement;
 820                                 }
 821                         }
 822                 }
 823         }
 824         else if (f)     //annoying.
 825         {
 826                 if (*(f->s_file+progfuncs->stringtable))        //if we can't get the filename, then it was stripped, and debugging it like this is useless
 827                         if (externs->useeditor)
 828                                 externs->useeditor(progfuncs, f->s_file+progfuncs->stringtable, -1, 0, NULL);
 829                 return statement;
 830         }
 831
 832
 833         return statement;
 834 }
 835
 836 //DMW: all pointer functions are modified to be absoloute pointers from NULL not sv_edicts
 837 /*
 838 ====================
 839 PR_ExecuteProgram
 840 ====================
 841 */
 842 void PR_ExecuteCode (progfuncs_t *progfuncs, int s)
 843 {
 844         eval_t  *t, *swtch=NULL;
 845
 846         int swtchtype = 0; //warning about not being initialized before use
 847         dstatement16_t  *st16;
 848         dstatement32_t  *st32;
 849         dfunction_t     *newf;
 850         int             runaway;
 851         int             i;
 852         int p;
 853         edictrun_t      *ed;
 854         eval_t  *ptr;
 855
 856         float *glob;
 857
 858         int fnum;
 859
 860         prinst->continuestatement = -1;
 861 #ifdef QCJIT
 862         if (prinst->jit)
 863         {
 864                 PR_EnterJIT(progfuncs, prinst->jit, s);
 865                 return;
 866         }
 867 #endif
 868         fnum = pr_xfunction - pr_functions;
 869
 870         runaway = 100000000;
 871
 872 #define PRBOUNDSCHECK
 873 #define RUNAWAYCHECK()                                                  \
 874         if (!--runaway)                                                         \
 875         {                                                                                       \
 876                 pr_xstatement = st-pr_statements;               \
 877                 PR_StackTrace(progfuncs);                               \
 878                 printf ("runaway loop error");                  \
 879                 while(pr_depth > prinst->exitdepth)             \
 880                         PR_LeaveFunction(progfuncs);            \
 881                 pr_spushed = 0;                                                 \
 882                 return;                                                                 \
 883         }
 884
 885 #define OPA ((eval_t *)&glob[st->a])
 886 #define OPB ((eval_t *)&glob[st->b])
 887 #define OPC ((eval_t *)&glob[st->c])
 888
 889 restart:        //jumped to when the progs might have changed.
 890         glob = pr_globals;
 891         switch (current_progstate->structtype)
 892         {
 893         case PST_DEFAULT:
 894         case PST_QTEST:
 895 #define INTSIZE 16
 896                 st16 = &pr_statements16[s];
 897                 while (pr_trace)
 898                 {
 899                         #define DEBUGABLE
 900                         #ifdef SEPARATEINCLUDES
 901                                 #include "execloop16d.h"
 902                         #else
 903                                 #include "execloop.h"
 904                         #endif
 905                         #undef DEBUGABLE
 906                 }
 907
 908                 while(1)
 909                 {
 910                         #include "execloop.h"
 911                 }
 912 #undef INTSIZE
 913                 Sys_Error("PR_ExecuteProgram - should be unreachable");
 914                 break;
 915         case PST_KKQWSV:
 916         case PST_FTE32:
 917 #define INTSIZE 32
 918                 st32 = &pr_statements32[s];
 919                 while (pr_trace)
 920                 {
 921                         #define DEBUGABLE
 922                         #ifdef SEPARATEINCLUDES
 923                                 #include "execloop32d.h"
 924                         #else
 925                                 #include "execloop.h"
 926                         #endif
 927                         #undef DEBUGABLE
 928                 }
 929
 930                 while(1)
 931                 {
 932                         #ifdef SEPARATEINCLUDES
 933                                 #include "execloop32.h"
 934                         #else
 935                                 #include "execloop.h"
 936                         #endif
 937                 }
 938 #undef INTSIZE
 939                 Sys_Error("PR_ExecuteProgram - should be unreachable");
 940                 break;
 941         default:
 942                 Sys_Error("PR_ExecuteProgram - bad structtype");
 943         }
 944 }
 945
 946
 947 void PR_ExecuteProgram (progfuncs_t *progfuncs, func_t fnum)
 948 {
 949         dfunction_t     *f;
 950         int             i;
 951         unsigned int initial_progs;
 952         int             oldexitdepth;
 953
 954         int s;
 955
 956         int tempdepth;
 957
 958         unsigned int newprogs = (fnum & 0xff000000)>>24;
 959
 960         initial_progs = pr_typecurrent;
 961         if (newprogs != initial_progs)
 962         {
 963                 if (newprogs >= maxprogs || !&pr_progstate[newprogs].globals)   //can happen with hexen2...
 964                 {
 965                         printf("PR_ExecuteProgram: tried branching into invalid progs\n");
 966                         return;
 967                 }
 968                 PR_MoveParms(progfuncs, newprogs, pr_typecurrent);
 969                 PR_SwitchProgs(progfuncs, newprogs);
 970         }
 971
 972         if (!(fnum & ~0xff000000) || (signed)(fnum & ~0xff000000) >= pr_progs->numfunctions)
 973         {
 974 //              if (pr_global_struct->self)
 975 //                      ED_Print (PROG_TO_EDICT(pr_global_struct->self));
 976                 printf("PR_ExecuteProgram: NULL function from exe\n");
 977 //              Host_Error ("PR_ExecuteProgram: NULL function from exe");
 978
 979 //              PR_MoveParms(0, pr_typecurrent);
 980                 PR_SwitchProgs(progfuncs, initial_progs);
 981                 return;
 982         }
 983
 984         oldexitdepth = prinst->exitdepth;
 985
 986         f = &pr_functions[fnum & ~0xff000000];
 987
 988         if (f->first_statement < 0)
 989         {       // negative statements are built in functions
 990                 i = -f->first_statement;
 991
 992                 if (i < externs->numglobalbuiltins)
 993                         (*externs->globalbuiltins[i]) (progfuncs, (struct globalvars_s *)current_progstate->globals);
 994                 else
 995                 {
 996                         i -= externs->numglobalbuiltins;
 997                         if (i > current_progstate->numbuiltins)
 998                         {
 999                                 printf ("Bad builtin call number %i (from exe)\n", -f->first_statement);
1000                         //      PR_MoveParms(p, pr_typecurrent);
1001                                 PR_SwitchProgs(progfuncs, initial_progs);
1002                                 return;
1003                         }
1004                         current_progstate->builtins [i] (progfuncs, (struct globalvars_s *)current_progstate->globals);
1005                 }
1006                 PR_MoveParms(progfuncs, initial_progs, pr_typecurrent);
1007                 PR_SwitchProgs(progfuncs, initial_progs);
1008                 return;
1009         }
1010
1011         if (pr_trace)
1012                 pr_trace--;
1013
1014 // make a stack frame
1015         prinst->exitdepth = pr_depth;
1016
1017
1018         s = PR_EnterFunction (progfuncs, f, initial_progs);
1019
1020         tempdepth = prinst->numtempstringsstack;
1021         PR_ExecuteCode(progfuncs, s);
1022
1023
1024         PR_MoveParms(progfuncs, initial_progs, pr_typecurrent);
1025         PR_SwitchProgs(progfuncs, initial_progs);
1026
1027         PR_FreeTemps(progfuncs, tempdepth);
1028         prinst->numtempstringsstack = tempdepth;
1029
1030         prinst->exitdepth = oldexitdepth;
1031 }
1032
1033
1034
1035
1036
1037
1038 typedef struct {
1039         int fnum;
1040         int progsnum;
1041         int statement;
1042 } qcthreadstack_t;
1043 typedef struct qcthread_s {
1044         int fstackdepth;
1045         qcthreadstack_t fstack[MAX_STACK_DEPTH];
1046         int lstackused;
1047         int lstack[LOCALSTACK_SIZE];
1048         int xstatement;
1049         int xfunction;
1050         progsnum_t xprogs;
1051 } qcthread_t;
1052
1053 struct qcthread_s *PR_ForkStack(progfuncs_t *progfuncs)
1054 {       //QC code can call builtins that call qc code.
1055         //to get around the problems of restoring the builtins we simply don't save the thread over the builtin.
1056         int i, l;
1057         int ed = prinst->exitdepth;
1058         int localsoffset, baselocalsoffset;
1059         qcthread_t *thread = memalloc(sizeof(qcthread_t));
1060         dfunction_t *f;
1061
1062         //copy out the functions stack.
1063         for (i = 0,localsoffset=0; i < ed; i++)
1064         {
1065                 if (i+1 == pr_depth)
1066                         f = pr_xfunction;
1067                 else
1068                         f = pr_stack[i+1].f;
1069                 localsoffset += f->locals;      //this is where it crashes
1070         }
1071         baselocalsoffset = localsoffset;
1072         for (i = ed; i < pr_depth; i++)
1073         {
1074                 thread->fstack[i-ed].fnum = pr_stack[i].f - pr_progstate[pr_stack[i].progsnum].functions;
1075                 thread->fstack[i-ed].progsnum = pr_stack[i].progsnum;
1076                 thread->fstack[i-ed].statement = pr_stack[i].s;
1077
1078                 if (i+1 == pr_depth)
1079                         f = pr_xfunction;
1080                 else
1081                         f = pr_stack[i+1].f;
1082                 localsoffset += f->locals;
1083         }
1084         thread->fstackdepth = pr_depth - ed;
1085
1086         for (i = pr_depth - 1; i >= ed ; i--)
1087         {
1088                 if (i+1 == pr_depth)
1089                         f = pr_xfunction;
1090                 else
1091                         f = pr_stack[i+1].f;
1092                 localsoffset -= f->locals;
1093                 for (l = 0; l < f->locals; l++)
1094                 {
1095                         thread->lstack[localsoffset-baselocalsoffset + l ] = ((int *)pr_globals)[f->parm_start + l];
1096                         ((int *)pr_globals)[f->parm_start + l] = localstack[localsoffset+l];    //copy the old value into the globals (so the older functions have the correct locals.
1097                 }
1098         }
1099
1100         for (i = ed; i < pr_depth ; i++)        //we need to get the locals back to how they were.
1101         {
1102                 if (i+1 == pr_depth)
1103                         f = pr_xfunction;
1104                 else
1105                         f = pr_stack[i+1].f;
1106
1107                 for (l = 0; l < f->locals; l++)
1108                 {
1109                         ((int *)pr_globals)[f->parm_start + l] = thread->lstack[localsoffset-baselocalsoffset + l];
1110                 }
1111                 localsoffset += f->locals;
1112         }
1113         thread->lstackused = localsoffset - baselocalsoffset;
1114
1115         thread->xstatement = pr_xstatement;
1116         thread->xfunction = pr_xfunction - pr_progstate[pr_typecurrent].functions;
1117         thread->xprogs = pr_typecurrent;
1118
1119         return thread;
1120 }
1121
1122 void PR_ResumeThread (progfuncs_t *progfuncs, struct qcthread_s *thread)
1123 {
1124         dfunction_t     *f, *oldf;
1125         int             i,l,ls;
1126         progsnum_t initial_progs;
1127         int             oldexitdepth;
1128
1129         int s;
1130         int tempdepth;
1131
1132         progsnum_t prnum = thread->xprogs;
1133         int fnum = thread->xfunction;
1134
1135         if (localstack_used + thread->lstackused > LOCALSTACK_SIZE)
1136                 PR_RunError(progfuncs, "Too many locals on resumtion of QC thread\n");
1137
1138         if (pr_depth + thread->fstackdepth > MAX_STACK_DEPTH)
1139                 PR_RunError(progfuncs, "Too large stack on resumtion of QC thread\n");
1140
1141
1142         //do progs switching stuff as appropriate. (fteqw only)
1143         initial_progs = pr_typecurrent;
1144         PR_MoveParms(progfuncs, prnum, pr_typecurrent);
1145         PR_SwitchProgs(progfuncs, prnum);
1146
1147
1148         oldexitdepth = prinst->exitdepth;
1149         prinst->exitdepth = pr_depth;
1150
1151         ls = 0;
1152         //add on the callstack.
1153         for (i = 0; i < thread->fstackdepth; i++)
1154         {
1155                 if (pr_depth == prinst->exitdepth)
1156                 {
1157                         pr_stack[pr_depth].f = pr_xfunction;
1158                         pr_stack[pr_depth].s = pr_xstatement;
1159                         pr_stack[pr_depth].progsnum = initial_progs;
1160                 }
1161                 else
1162                 {
1163                         pr_stack[pr_depth].progsnum = thread->fstack[i].progsnum;
1164                         pr_stack[pr_depth].f = pr_progstate[thread->fstack[i].progsnum].functions + thread->fstack[i].fnum;
1165                         pr_stack[pr_depth].s = thread->fstack[i].statement;
1166                 }
1167
1168                 if (i+1 == thread->fstackdepth)
1169                         f = &pr_functions[fnum];
1170                 else
1171                         f = pr_progstate[thread->fstack[i+1].progsnum].functions + thread->fstack[i+1].fnum;
1172                 for (l = 0; l < f->locals; l++)
1173                 {
1174                         localstack[localstack_used++] = ((int *)pr_globals)[f->parm_start + l];
1175                         ((int *)pr_globals)[f->parm_start + l] = thread->lstack[ls++];
1176                 }
1177
1178                 pr_depth++;
1179         }
1180
1181         if (ls != thread->lstackused)
1182                 PR_RunError(progfuncs, "Thread stores incorrect locals count\n");
1183
1184
1185         f = &pr_functions[fnum];
1186
1187 //      thread->lstackused -= f->locals;        //the current function is the odd one out.
1188
1189         //add on the locals stack
1190         memcpy(localstack+localstack_used, thread->lstack, sizeof(int)*thread->lstackused);
1191         localstack_used += thread->lstackused;
1192
1193         //bung the locals of the current function on the stack.
1194 //      for (i=0 ; i < f->locals ; i++)
1195 //              ((int *)pr_globals)[f->parm_start + i] = 0xff00ff00;//thread->lstack[thread->lstackused+i];
1196
1197
1198 //      PR_EnterFunction (progfuncs, f, initial_progs);
1199         oldf = pr_xfunction;
1200         pr_xfunction = f;
1201         s = thread->xstatement;
1202
1203         tempdepth = prinst->numtempstringsstack;
1204         PR_ExecuteCode(progfuncs, s);
1205
1206
1207         PR_MoveParms(progfuncs, initial_progs, pr_typecurrent);
1208         PR_SwitchProgs(progfuncs, initial_progs);
1209         PR_FreeTemps(progfuncs, tempdepth);
1210         prinst->numtempstringsstack = tempdepth;
1211
1212         prinst->exitdepth = oldexitdepth;
1213         pr_xfunction = oldf;
1214 }
1215
1216 void    PR_AbortStack                   (progfuncs_t *progfuncs)
1217 {
1218         while(pr_depth > prinst->exitdepth+1)
1219                 PR_LeaveFunction(progfuncs);
1220         prinst->continuestatement = 0;
1221 }
1222