/* pr_exec.c (description) Copyright (C) 1996-1997 Id Software, Inc. This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 2 of the License, or (at your option) any later version. This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with this program; if not, write to: Free Software Foundation, Inc. 59 Temple Place - Suite 330 Boston, MA 02111-1307, USA $Id$ */ #ifdef HAVE_CONFIG_H # include "config.h" #endif #ifdef HAVE_STRING_H # include #endif #ifdef HAVE_STRINGS_H # include #endif #include #include "QF/console.h" #include "QF/cvar.h" #include "QF/progs.h" #include "QF/sys.h" char *pr_opnames[] = { "DONE", "MUL_F", "MUL_V", "MUL_FV", "MUL_VF", "DIV", "ADD_F", "ADD_V", "SUB_F", "SUB_V", "EQ_F", "EQ_V", "EQ_S", "EQ_E", "EQ_FNC", "NE_F", "NE_V", "NE_S", "NE_E", "NE_FNC", "LE", "GE", "LT", "GT", "INDIRECT", "INDIRECT", "INDIRECT", "INDIRECT", "INDIRECT", "INDIRECT", "ADDRESS", "STORE_F", "STORE_V", "STORE_S", "STORE_ENT", "STORE_FLD", "STORE_FNC", "STOREP_F", "STOREP_V", "STOREP_S", "STOREP_ENT", "STOREP_FLD", "STOREP_FNC", "RETURN", "NOT_F", "NOT_V", "NOT_S", "NOT_ENT", "NOT_FNC", "IF", "IFNOT", "CALL0", "CALL1", "CALL2", "CALL3", "CALL4", "CALL5", "CALL6", "CALL7", "CALL8", "STATE", "GOTO", "AND", "OR", "BITAND", "BITOR" }; //============================================================================= /* PR_PrintStatement */ void PR_PrintStatement (progs_t * pr, dstatement_t *s) { int i; if ((unsigned int) s->op < sizeof (pr_opnames) / sizeof (pr_opnames[0])) { Con_Printf ("%s ", pr_opnames[s->op]); i = strlen (pr_opnames[s->op]); for (; i < 10; i++) Con_Printf (" "); } if (s->op == OP_IF || s->op == OP_IFNOT) Con_Printf ("%sbranch %i", PR_GlobalString (pr, (unsigned short) s->a), s->b); else if (s->op == OP_GOTO) { Con_Printf ("branch %i", s->a); } else if ((unsigned int) (s->op - OP_STORE_F) < 6) { Con_Printf ("%s", PR_GlobalString (pr, (unsigned short) s->a)); Con_Printf ("%s", PR_GlobalStringNoContents (pr, (unsigned short) s->b)); } else { if (s->a) Con_Printf ("%s", PR_GlobalString (pr, (unsigned short) s->a)); if (s->b) Con_Printf ("%s", PR_GlobalString (pr, (unsigned short) s->b)); if (s->c) Con_Printf ("%s", PR_GlobalStringNoContents (pr, (unsigned short) s->c)); } Con_Printf ("\n"); } /* PR_StackTrace */ void PR_StackTrace (progs_t * pr) { dfunction_t *f; int i; if (pr->pr_depth == 0) { Con_Printf ("\n"); return; } pr->pr_stack[pr->pr_depth].f = pr->pr_xfunction; for (i = pr->pr_depth; i >= 0; i--) { f = pr->pr_stack[i].f; if (!f) { Con_Printf ("\n"); } else Con_Printf ("%12s : %s\n", PR_GetString (pr, f->s_file), PR_GetString (pr, f->s_name)); } } /* PR_Profile */ void PR_Profile (progs_t * pr) { dfunction_t *f, *best; int max; int num; int i; num = 0; do { max = 0; best = NULL; for (i = 0; i < pr->progs->numfunctions; i++) { f = &pr->pr_functions[i]; if (f->profile > max) { max = f->profile; best = f; } } if (best) { if (num < 10) Con_Printf ("%7i %s\n", best->profile, PR_GetString (pr, best->s_name)); num++; best->profile = 0; } } while (best); } /* PR_RunError Aborts the currently executing function */ void PR_RunError (progs_t * pr, char *error, ...) { va_list argptr; char string[1024]; va_start (argptr, error); vsnprintf (string, sizeof (string), error, argptr); va_end (argptr); PR_PrintStatement (pr, pr->pr_statements + pr->pr_xstatement); PR_StackTrace (pr); Con_Printf ("%s\n", string); pr->pr_depth = 0; // dump the stack so PR_Error can // shutdown functions PR_Error (pr, "Program error"); } /* PR_ExecuteProgram The interpretation main loop */ /* PR_EnterFunction Returns the new program statement counter */ int PR_EnterFunction (progs_t * pr, dfunction_t *f) { int i, j, c, o; //printf("%s:\n", PR_GetString(pr,f->s_name)); pr->pr_stack[pr->pr_depth].s = pr->pr_xstatement; pr->pr_stack[pr->pr_depth].f = pr->pr_xfunction; pr->pr_depth++; if (pr->pr_depth >= MAX_STACK_DEPTH) PR_RunError (pr, "stack overflow"); // save off any locals that the new function steps on c = f->locals; if (pr->localstack_used + c > LOCALSTACK_SIZE) PR_RunError (pr, "PR_ExecuteProgram: locals stack overflow\n"); for (i = 0; i < c; i++) pr->localstack[pr->localstack_used + i] = ((int *) pr->pr_globals)[f->parm_start + i]; pr->localstack_used += c; // copy parameters o = f->parm_start; for (i = 0; i < f->numparms; i++) { for (j = 0; j < f->parm_size[i]; j++) { ((int *) pr->pr_globals)[o] = ((int *) pr->pr_globals)[OFS_PARM0 + i * 3 + j]; o++; } } pr->pr_xfunction = f; return f->first_statement - 1; // offset the s++ } /* PR_LeaveFunction */ int PR_LeaveFunction (progs_t * pr) { int i, c; if (pr->pr_depth <= 0) PR_Error (pr, "prog stack underflow"); // restore locals from the stack c = pr->pr_xfunction->locals; pr->localstack_used -= c; if (pr->localstack_used < 0) PR_RunError (pr, "PR_ExecuteProgram: locals stack underflow\n"); for (i = 0; i < c; i++) ((int *) pr->pr_globals)[pr->pr_xfunction->parm_start + i] = pr->localstack[pr->localstack_used + i]; // up stack pr->pr_depth--; pr->pr_xfunction = pr->pr_stack[pr->pr_depth].f; return pr->pr_stack[pr->pr_depth].s; } /* PR_ExecuteProgram */ #define OPA (pr->pr_globals[(unsigned short) st->a]) #define OPB (pr->pr_globals[(unsigned short) st->b]) #define OPC (pr->pr_globals[(unsigned short) st->c]) #define E_OPA ((eval_t *)&OPA) #define E_OPB ((eval_t *)&OPB) #define E_OPC ((eval_t *)&OPC) extern cvar_t *pr_boundscheck; void PR_ExecuteProgram (progs_t * pr, func_t fnum) { dstatement_t *st; dfunction_t *f, *newf; edict_t *ed; int exitdepth; eval_t *ptr; int profile, startprofile; if (!fnum || fnum >= pr->progs->numfunctions) { if (*pr->globals.self) ED_Print (pr, PROG_TO_EDICT (pr, *pr->globals.self)); PR_Error (pr, "PR_ExecuteProgram: NULL function"); } f = &pr->pr_functions[fnum]; //printf("%s:\n", PR_GetString(pr,f->s_name)); pr->pr_trace = false; // make a stack frame exitdepth = pr->pr_depth; st = &pr->pr_statements[PR_EnterFunction (pr, f)]; startprofile = profile = 0; while (1) { st++; if (++profile > 1000000) // LordHavoc: increased runaway loop // limit 10x { pr->pr_xstatement = st - pr->pr_statements; PR_RunError (pr, "runaway loop error"); } if (pr->pr_trace) PR_PrintStatement (pr, st); switch (st->op) { case OP_ADD_F: E_OPC->_float = E_OPA->_float + E_OPB->_float; break; case OP_ADD_V: E_OPC->vector[0] = E_OPA->vector[0] + E_OPB->vector[0]; E_OPC->vector[1] = E_OPA->vector[1] + E_OPB->vector[1]; E_OPC->vector[2] = E_OPA->vector[2] + E_OPB->vector[2]; break; case OP_SUB_F: E_OPC->_float = E_OPA->_float - E_OPB->_float; break; case OP_SUB_V: E_OPC->vector[0] = E_OPA->vector[0] - E_OPB->vector[0]; E_OPC->vector[1] = E_OPA->vector[1] - E_OPB->vector[1]; E_OPC->vector[2] = E_OPA->vector[2] - E_OPB->vector[2]; break; case OP_MUL_F: E_OPC->_float = E_OPA->_float * E_OPB->_float; break; case OP_MUL_V: E_OPC->_float = E_OPA->vector[0] * E_OPB->vector[0] + E_OPA->vector[1] * E_OPB->vector[1] + E_OPA->vector[2] * E_OPB->vector[2]; break; case OP_MUL_FV: E_OPC->vector[0] = E_OPA->_float * E_OPB->vector[0]; E_OPC->vector[1] = E_OPA->_float * E_OPB->vector[1]; E_OPC->vector[2] = E_OPA->_float * E_OPB->vector[2]; break; case OP_MUL_VF: E_OPC->vector[0] = E_OPB->_float * E_OPA->vector[0]; E_OPC->vector[1] = E_OPB->_float * E_OPA->vector[1]; E_OPC->vector[2] = E_OPB->_float * E_OPA->vector[2]; break; case OP_DIV_F: E_OPC->_float = E_OPA->_float / E_OPB->_float; break; case OP_BITAND: E_OPC->_float = (int) E_OPA->_float & (int) E_OPB->_float; break; case OP_BITOR: E_OPC->_float = (int) E_OPA->_float | (int) E_OPB->_float; break; case OP_GE: E_OPC->_float = E_OPA->_float >= E_OPB->_float; break; case OP_LE: E_OPC->_float = E_OPA->_float <= E_OPB->_float; break; case OP_GT: E_OPC->_float = E_OPA->_float > E_OPB->_float; break; case OP_LT: E_OPC->_float = E_OPA->_float < E_OPB->_float; break; case OP_AND: E_OPC->_float = E_OPA->_float && E_OPB->_float; break; case OP_OR: E_OPC->_float = E_OPA->_float || E_OPB->_float; break; case OP_NOT_F: E_OPC->_float = !E_OPA->_float; break; case OP_NOT_V: E_OPC->_float = !E_OPA->vector[0] && !E_OPA->vector[1] && !E_OPA->vector[2]; break; case OP_NOT_S: E_OPC->_float = !E_OPA->string || !*PR_GetString (pr, E_OPA->string); break; case OP_NOT_FNC: E_OPC->_float = !E_OPA->function; break; case OP_NOT_ENT: E_OPC->_float = (PROG_TO_EDICT (pr, E_OPA->edict) == *pr->edicts); break; case OP_EQ_F: E_OPC->_float = E_OPA->_float == E_OPB->_float; break; case OP_EQ_V: E_OPC->_float = (E_OPA->vector[0] == E_OPB->vector[0]) && (E_OPA->vector[1] == E_OPB->vector[1]) && (E_OPA->vector[2] == E_OPB->vector[2]); break; case OP_EQ_S: E_OPC->_float = !strcmp (PR_GetString (pr, E_OPA->string), PR_GetString (pr, E_OPB->string)); break; case OP_EQ_E: E_OPC->_float = E_OPA->_int == E_OPB->_int; break; case OP_EQ_FNC: E_OPC->_float = E_OPA->function == E_OPB->function; break; case OP_NE_F: E_OPC->_float = E_OPA->_float != E_OPB->_float; break; case OP_NE_V: E_OPC->_float = (E_OPA->vector[0] != E_OPB->vector[0]) || (E_OPA->vector[1] != E_OPB->vector[1]) || (E_OPA->vector[2] != E_OPB->vector[2]); break; case OP_NE_S: E_OPC->_float = strcmp (PR_GetString (pr, E_OPA->string), PR_GetString (pr, E_OPB->string)); break; case OP_NE_E: E_OPC->_float = E_OPA->_int != E_OPB->_int; break; case OP_NE_FNC: E_OPC->_float = E_OPA->function != E_OPB->function; break; // ================== case OP_STORE_F: case OP_STORE_ENT: case OP_STORE_FLD: // integers case OP_STORE_S: case OP_STORE_FNC: // pointers E_OPB->_int = E_OPA->_int; break; case OP_STORE_V: E_OPB->vector[0] = E_OPA->vector[0]; E_OPB->vector[1] = E_OPA->vector[1]; E_OPB->vector[2] = E_OPA->vector[2]; break; case OP_STOREP_F: case OP_STOREP_ENT: case OP_STOREP_FLD: // integers case OP_STOREP_S: case OP_STOREP_FNC: // pointers if (pr_boundscheck->int_val && (E_OPB->_int < 0 || E_OPB->_int + 4 > pr->pr_edictareasize)) { pr->pr_xstatement = st - pr->pr_statements; PR_RunError (pr, "Progs attempted to write to an out of bounds edict\n"); return; } if (pr_boundscheck->int_val && (E_OPB->_int % pr->pr_edict_size < ((byte *) & (*pr->edicts)->v - (byte *) * pr->edicts))) { pr->pr_xstatement = st - pr->pr_statements; PR_RunError (pr, "Progs attempted to write to an engine edict field\n"); return; } ptr = (eval_t *) ((byte *) * pr->edicts + E_OPB->_int); ptr->_int = E_OPA->_int; break; case OP_STOREP_V: if (pr_boundscheck->int_val && (E_OPB->_int < 0 || E_OPB->_int + 12 > pr->pr_edictareasize)) { pr->pr_xstatement = st - pr->pr_statements; PR_RunError (pr, "Progs attempted to write to an out of bounds edict\n"); return; } ptr = (eval_t *) ((byte *) * pr->edicts + E_OPB->_int); ptr->vector[0] = E_OPA->vector[0]; ptr->vector[1] = E_OPA->vector[1]; ptr->vector[2] = E_OPA->vector[2]; break; case OP_ADDRESS: if (pr_boundscheck->int_val && (E_OPA->edict < 0 || E_OPA->edict >= pr->pr_edictareasize)) { pr->pr_xstatement = st - pr->pr_statements; PR_RunError (pr, "Progs attempted to address an out of bounds edict\n"); return; } if (pr_boundscheck->int_val && (E_OPA->edict == 0 && pr->null_bad)) { pr->pr_xstatement = st - pr->pr_statements; PR_RunError (pr, "assignment to world entity"); return; } if (pr_boundscheck->int_val && (E_OPB->_int < 0 || E_OPB->_int >= pr->progs->entityfields)) { pr->pr_xstatement = st - pr->pr_statements; PR_RunError (pr, "Progs attempted to address an invalid field in an edict\n"); return; } ed = PROG_TO_EDICT (pr, E_OPA->edict); E_OPC->_int = (byte *) ((int *) &ed->v + E_OPB->_int) - (byte *) * pr->edicts; break; case OP_LOAD_F: case OP_LOAD_FLD: case OP_LOAD_ENT: case OP_LOAD_S: case OP_LOAD_FNC: if (pr_boundscheck->int_val && (E_OPA->edict < 0 || E_OPA->edict >= pr->pr_edictareasize)) { pr->pr_xstatement = st - pr->pr_statements; PR_RunError (pr, "Progs attempted to read an out of bounds edict number\n"); return; } if (pr_boundscheck->int_val && (E_OPB->_int < 0 || E_OPB->_int >= pr->progs->entityfields)) { pr->pr_xstatement = st - pr->pr_statements; PR_RunError (pr, "Progs attempted to read an invalid field in an edict\n"); return; } ed = PROG_TO_EDICT (pr, E_OPA->edict); E_OPC->_int = ((eval_t *) ((int *) &ed->v + E_OPB->_int))->_int; break; case OP_LOAD_V: if (pr_boundscheck->int_val && (E_OPA->edict < 0 || E_OPA->edict >= pr->pr_edictareasize)) { pr->pr_xstatement = st - pr->pr_statements; PR_RunError (pr, "Progs attempted to read an out of bounds edict number\n"); return; } if (pr_boundscheck->int_val && (E_OPB->_int < 0 || E_OPB->_int + 2 >= pr->progs->entityfields)) { pr->pr_xstatement = st - pr->pr_statements; PR_RunError (pr, "Progs attempted to read an invalid field in an edict\n"); return; } ed = PROG_TO_EDICT (pr, E_OPA->edict); E_OPC->vector[0] = ((eval_t *) ((int *) &ed->v + E_OPB->_int))->vector[0]; E_OPC->vector[1] = ((eval_t *) ((int *) &ed->v + E_OPB->_int))->vector[1]; E_OPC->vector[2] = ((eval_t *) ((int *) &ed->v + E_OPB->_int))->vector[2]; break; // ================== case OP_IFNOT: if (!E_OPA->_int) st += st->b - 1; // offset the s++ break; case OP_IF: if (E_OPA->_int) st += st->b - 1; // offset the s++ break; case OP_GOTO: st += st->a - 1; // offset the s++ break; case OP_CALL0: case OP_CALL1: case OP_CALL2: case OP_CALL3: case OP_CALL4: case OP_CALL5: case OP_CALL6: case OP_CALL7: case OP_CALL8: pr->pr_xfunction->profile += profile - startprofile; startprofile = profile; pr->pr_xstatement = st - pr->pr_statements; pr->pr_argc = st->op - OP_CALL0; if (!E_OPA->function) PR_RunError (pr, "NULL function"); newf = &pr->pr_functions[E_OPA->function]; if (newf->first_statement < 0) { // negative // statements are // built in functions int i = -newf->first_statement; if (i >= pr->numbuiltins) PR_RunError (pr, "Bad builtin call number"); pr->builtins[i] (pr); break; } st = &pr->pr_statements[PR_EnterFunction (pr, newf)]; break; case OP_DONE: case OP_RETURN: memcpy (&pr->pr_globals[OFS_RETURN], &OPA, 3 * sizeof (OPA)); st = &pr->pr_statements[PR_LeaveFunction (pr)]; if (pr->pr_depth == exitdepth) return; // all done break; case OP_STATE: ed = PROG_TO_EDICT (pr, *pr->globals.self); ed->v[pr->fields.nextthink].float_var = *pr->globals.time + 0.1; ed->v[pr->fields.frame].float_var = E_OPA->_float; ed->v[pr->fields.think].func_var = E_OPB->function; break; // LordHavoc: to be enabled when Progs version 7 (or whatever it will be numbered) is finalized /* case OP_ADD_I: E_OPC->_int = E_OPA->_int + E_OPB->_int; break; case OP_ADD_IF: E_OPC->_int = E_OPA->_int + (int) E_OPB->_float; break; case OP_ADD_FI: E_OPC->_float = E_OPA->_float + (float) E_OPB->_int; break; case OP_SUB_I: E_OPC->_int = E_OPA->_int - E_OPB->_int; break; case OP_SUB_IF: E_OPC->_int = E_OPA->_int - (int) E_OPB->_float; break; case OP_SUB_FI: E_OPC->_float = E_OPA->_float - (float) E_OPB->_int; break; case OP_MUL_I: E_OPC->_int = E_OPA->_int * E_OPB->_int; break; case OP_MUL_IF: E_OPC->_int = E_OPA->_int * (int) E_OPB->_float; break; case OP_MUL_FI: E_OPC->_float = E_OPA->_float * (float) E_OPB->_int; break; case OP_MUL_VI: E_OPC->vector[0] = (float) E_OPB->_int * E_OPA->vector[0]; E_OPC->vector[1] = (float) E_OPB->_int * E_OPA->vector[1]; E_OPC->vector[2] = (float) E_OPB->_int * E_OPA->vector[2]; break; case OP_DIV_VF: { float temp = 1.0f / E_OPB->_float; E_OPC->vector[0] = temp * E_OPA->vector[0]; E_OPC->vector[1] = temp * E_OPA->vector[1]; E_OPC->vector[2] = temp * E_OPA->vector[2]; } break; case OP_DIV_I: E_OPC->_int = E_OPA->_int / E_OPB->_int; break; case OP_DIV_IF: E_OPC->_int = E_OPA->_int / (int) E_OPB->_float; break; case OP_DIV_FI: E_OPC->_float = E_OPA->_float / (float) E_OPB->_int; break; case OP_CONV_IF: E_OPC->_float = E_OPA->_int; break; case OP_CONV_FI: E_OPC->_int = E_OPA->_float; break; case OP_BITAND_I: E_OPC->_int = E_OPA->_int & E_OPB->_int; break; case OP_BITOR_I: E_OPC->_int = E_OPA->_int | E_OPB->_int; break; case OP_BITAND_IF: E_OPC->_int = E_OPA->_int & (int) E_OPB->_float; break; case OP_BITOR_IF: E_OPC->_int = E_OPA->_int | (int) E_OPB->_float; break; case OP_BITAND_FI: E_OPC->_float = (int) E_OPA->_float & E_OPB->_int; break; case OP_BITOR_FI: E_OPC->_float = (int) E_OPA->_float | E_OPB->_int; break; case OP_GE_I: E_OPC->_float = E_OPA->_int >= E_OPB->_int; break; case OP_LE_I: E_OPC->_float = E_OPA->_int <= E_OPB->_int; break; case OP_GT_I: E_OPC->_float = E_OPA->_int > E_OPB->_int; break; case OP_LT_I: E_OPC->_float = E_OPA->_int < E_OPB->_int; break; case OP_AND_I: E_OPC->_float = E_OPA->_int && E_OPB->_int; break; case OP_OR_I: E_OPC->_float = E_OPA->_int || E_OPB->_int; break; case OP_GE_IF: E_OPC->_float = (float) E_OPA->_int >= E_OPB->_float; break; case OP_LE_IF: E_OPC->_float = (float) E_OPA->_int <= E_OPB->_float; break; case OP_GT_IF: E_OPC->_float = (float) E_OPA->_int > E_OPB->_float; break; case OP_LT_IF: E_OPC->_float = (float) E_OPA->_int < E_OPB->_float; break; case OP_AND_IF: E_OPC->_float = (float) E_OPA->_int && E_OPB->_float; break; case OP_OR_IF: E_OPC->_float = (float) E_OPA->_int || E_OPB->_float; break; case OP_GE_FI: E_OPC->_float = E_OPA->_float >= (float) E_OPB->_int; break; case OP_LE_FI: E_OPC->_float = E_OPA->_float <= (float) E_OPB->_int; break; case OP_GT_FI: E_OPC->_float = E_OPA->_float > (float) E_OPB->_int; break; case OP_LT_FI: E_OPC->_float = E_OPA->_float < (float) E_OPB->_int; break; case OP_AND_FI: E_OPC->_float = E_OPA->_float && (float) E_OPB->_int; break; case OP_OR_FI: E_OPC->_float = E_OPA->_float || (float) E_OPB->_int; break; case OP_NOT_I: E_OPC->_float = !E_OPA->_int; break; case OP_EQ_I: E_OPC->_float = E_OPA->_int == E_OPB->_int; break; case OP_EQ_IF: E_OPC->_float = (float) E_OPA->_int == E_OPB->_float; break; case OP_EQ_FI: E_OPC->_float = E_OPA->_float == (float) E_OPB->_int; break; case OP_NE_I: E_OPC->_float = E_OPA->_int != E_OPB->_int; break; case OP_NE_IF: E_OPC->_float = (float) E_OPA->_int != E_OPB->_float; break; case OP_NE_FI: E_OPC->_float = E_OPA->_float != (float) E_OPB->_int; break; case OP_STORE_I: E_OPB->_int = E_OPA->_int; break; case OP_STOREP_I: if (pr_boundscheck->int_val && (E_OPB->_int < 0 || E_OPB->_int + 4 > pr->pr_edictareasize)) { pr->pr_xstatement = st - pr->pr_statements; PR_RunError (pr, "Progs attempted to write to an out of bounds edict\n"); return; } if (pr_boundscheck->int_val && (E_OPB->_int % pr->pr_edict_size < ((byte *) & (*pr->edicts)->v - (byte *) *pr->edicts))) { pr->pr_xstatement = st - pr->pr_statements; PR_RunError (pr, "Progs attempted to write to an engine edict field\n"); return; } ptr = (eval_t *) ((byte *) *pr->edicts + E_OPB->_int); ptr->_int = E_OPA->_int; break; case OP_LOAD_I: if (pr_boundscheck->int_val && (E_OPA->edict < 0 || E_OPA->edict >= pr->pr_edictareasize)) { pr->pr_xstatement = st - pr->pr_statements; PR_RunError (pr, "Progs attempted to read an out of bounds edict number\n"); return; } if (pr_boundscheck->int_val && (E_OPB->_int < 0 || E_OPB->_int >= pr->progs->entityfields)) { pr->pr_xstatement = st - pr->pr_statements; PR_RunError (pr, "Progs attempted to read an invalid field in an edict\n"); return; } ed = PROG_TO_EDICT (pr, E_OPA->edict); E_OPC->_int = ((eval_t *) ((int *) &ed->v + E_OPB->_int))->_int; break; case OP_GSTOREP_I: case OP_GSTOREP_F: case OP_GSTOREP_ENT: case OP_GSTOREP_FLD: // integers case OP_GSTOREP_S: case OP_GSTOREP_FNC: // pointers if (pr_boundscheck->int_val && (E_OPB->_int < 0 || E_OPB->_int >= pr->pr_globaldefs)) { pr->pr_xstatement = st - pr->pr_statements; PR_RunError (pr, "Progs attempted to write to an invalid indexed global\n"); return; } pr->pr_globals[E_OPB->_int] = E_OPA->_float; break; case OP_GSTOREP_V: if (pr_boundscheck->int_val && (E_OPB->_int < 0 || E_OPB->_int + 2 >= pr->pr_globaldefs)) { pr->pr_xstatement = st - pr->pr_statements; PR_RunError (pr, "Progs attempted to write to an invalid indexed global\n"); return; } pr->pr_globals[E_OPB->_int] = E_OPA->vector[0]; pr->pr_globals[E_OPB->_int + 1] = E_OPA->vector[1]; pr->pr_globals[E_OPB->_int + 2] = E_OPA->vector[2]; break; case OP_GADDRESS: i = E_OPA->_int + (int) E_OPB->_float; if (pr_boundscheck->int_val && (i < 0 || i >= pr->pr_globaldefs)) { pr->pr_xstatement = st - pr->pr_statements; PR_RunError (pr, "Progs attempted to address an out of bounds global\n"); return; } E_OPC->_float = pr->pr_globals[i]; break; case OP_GLOAD_I: case OP_GLOAD_F: case OP_GLOAD_FLD: case OP_GLOAD_ENT: case OP_GLOAD_S: case OP_GLOAD_FNC: if (pr_boundscheck->int_val && (E_OPA->_int < 0 || E_OPA->_int >= pr->pr_globaldefs)) { pr->pr_xstatement = st - pr->pr_statements; PR_RunError (pr, "Progs attempted to read an invalid indexed global\n"); return; } E_OPC->_float = pr->pr_globals[E_OPA->_int]; break; case OP_GLOAD_V: if (pr_boundscheck->int_val && (E_OPA->_int < 0 || E_OPA->_int + 2 >= pr->pr_globaldefs)) { pr->pr_xstatement = st - pr->pr_statements; PR_RunError (pr, "Progs attempted to read an invalid indexed global\n"); return; } E_OPC->vector[0] = pr->pr_globals[E_OPA->_int]; E_OPC->vector[1] = pr->pr_globals[E_OPA->_int + 1]; E_OPC->vector[2] = pr->pr_globals[E_OPA->_int + 2]; break; case OP_BOUNDCHECK: if (E_OPA->_int < 0 || E_OPA->_int >= st->b) { pr->pr_xstatement = st - pr->pr_statements; PR_RunError (pr, "Progs boundcheck failed at line number %d, value is < 0 or >= %d\n", st->b, st->c); return; } break; */ default: pr->pr_xstatement = st - pr->pr_statements; PR_RunError (pr, "Bad opcode %i", st->op); } } }