9 static void loaderror(const char *fmt, ...)
16 printf(": %s\n", util_strerror(err));
19 static void qcvmerror(qc_program_t *prog, const char *fmt, ...)
31 qc_program::qc_program(const char *name, uint16_t crc, size_t entfields)
34 , entityfields(entfields)
37 qc_program_t* prog_load(const char *filename, bool skipversion)
41 FILE *file = fopen(filename, "rb");
43 /* we need all those in order to support INSTR_STATE: */
44 bool has_self = false,
47 has_nextthink = false,
53 if (fread(&header, sizeof(header), 1, file) != 1) {
54 loaderror("failed to read header from '%s'", filename);
59 util_swap_header(header);
61 if (!skipversion && header.version != 6) {
62 loaderror("header says this is a version %i progs, we need version 6\n", header.version);
67 prog = new qc_program(filename, header.crc16, header.entfield);
69 #define read_data(hdrvar, progvar, reserved) \
70 if (fseek(file, header.hdrvar.offset, SEEK_SET) != 0) { \
71 loaderror("seek failed"); \
74 prog->progvar.resize(header.hdrvar.length + reserved); \
77 sizeof(prog->progvar[0]), \
78 header.hdrvar.length, \
80 )!= header.hdrvar.length \
82 loaderror("read failed"); \
85 #define read_data1(x) read_data(x, x, 0)
86 #define read_data2(x, y) read_data(x, x, y)
88 read_data (statements, code, 0);
91 read_data1(functions);
93 read_data2(globals, 2); /* reserve more in case a RETURN using with the global at "the end" exists */
95 util_swap_statements(prog->code);
96 util_swap_defs_fields(prog->defs);
97 util_swap_defs_fields(prog->fields);
98 util_swap_functions(prog->functions);
99 util_swap_globals(prog->globals);
103 /* profile counters */
104 prog->profile.resize(prog->code.size());
105 memset(&prog->profile[0], 0, sizeof(prog->profile[0]) * prog->profile.size());
107 /* Add tempstring area */
108 prog->tempstring_start = prog->strings.size();
109 prog->tempstring_at = prog->strings.size();
111 prog->strings.resize(prog->strings.size() + 16*1024, '\0');
113 /* spawn the world entity */
114 prog->entitypool.emplace_back(true);
115 prog->entitydata.resize(prog->entityfields);
116 memset(prog->entitydata.data(), 0, sizeof(prog->entitydata[0]) * prog->entityfields);
119 /* cache some globals and fields from names */
120 for (auto &it : prog->defs) {
121 const char *name = prog_getstring(prog, it.name);
122 if (!strcmp(name, "self")) {
123 prog->cached_globals.self = it.offset;
126 else if (!strcmp(name, "time")) {
127 prog->cached_globals.time = it.offset;
131 for (auto &it : prog->fields) {
132 const char *name = prog_getstring(prog, it.name);
133 if (!strcmp(name, "think")) {
134 prog->cached_fields.think = it.offset;
137 else if (!strcmp(name, "nextthink")) {
138 prog->cached_fields.nextthink = it.offset;
139 has_nextthink = true;
141 else if (!strcmp(name, "frame")) {
142 prog->cached_fields.frame = it.offset;
146 if (has_self && has_time && has_think && has_nextthink && has_frame)
147 prog->supports_state = true;
158 void prog_delete(qc_program_t *prog)
163 /***********************************************************************
167 const char* prog_getstring(qc_program_t *prog, qcint_t str) {
168 /* cast for return required for C++ */
169 if (str < 0 || str >= (qcint_t)prog->strings.size())
170 return "<<<invalid string>>>";
172 return &prog->strings[0] + str;
175 prog_section_def_t* prog_entfield(qc_program_t *prog, qcint_t off) {
176 for (auto &it : prog->fields)
177 if (it.offset == off)
182 prog_section_def_t* prog_getdef(qc_program_t *prog, qcint_t off)
184 for (auto &it : prog->defs)
185 if (it.offset == off)
190 qcany_t* prog_getedict(qc_program_t *prog, qcint_t e) {
191 if (e >= (qcint_t)prog->entitypool.size()) {
193 fprintf(stderr, "Accessing out of bounds edict %i\n", (int)e);
196 return (qcany_t*)&prog->entitydata[prog->entityfields * e];
199 static qcint_t prog_spawn_entity(qc_program_t *prog) {
202 for (e = 0; e < (qcint_t)prog->entitypool.size(); ++e) {
203 if (!prog->entitypool[e]) {
204 data = (char*)&prog->entitydata[prog->entityfields * e];
205 memset(data, 0, prog->entityfields * sizeof(qcint_t));
209 prog->entitypool.emplace_back(true);
211 size_t sz = prog->entitydata.size();
212 prog->entitydata.resize(sz + prog->entityfields);
213 data = (char*)&prog->entitydata[sz];
214 memset(data, 0, sz * sizeof(qcint_t));
219 static void prog_free_entity(qc_program_t *prog, qcint_t e) {
222 fprintf(stderr, "Trying to free world entity\n");
225 if (e >= (qcint_t)prog->entitypool.size()) {
227 fprintf(stderr, "Trying to free out of bounds entity\n");
230 if (!prog->entitypool[e]) {
232 fprintf(stderr, "Double free on entity\n");
235 prog->entitypool[e] = false;
238 qcint_t prog_tempstring(qc_program_t *prog, const char *str) {
239 size_t len = strlen(str);
240 size_t at = prog->tempstring_at;
242 /* when we reach the end we start over */
243 if (at + len >= prog->strings.size())
244 at = prog->tempstring_start;
246 /* when it doesn't fit, reallocate */
247 if (at + len >= prog->strings.size())
249 prog->strings.resize(prog->strings.size() + len+1);
250 memcpy(&prog->strings[0] + at, str, len+1);
254 /* when it fits, just copy */
255 memcpy(&prog->strings[0] + at, str, len+1);
256 prog->tempstring_at += len+1;
260 static size_t print_escaped_string(const char *str, size_t maxlen) {
263 --maxlen; /* because we're lazy and have escape sequences */
273 case '\a': len += 2; putchar('\\'); putchar('a'); break;
274 case '\b': len += 2; putchar('\\'); putchar('b'); break;
275 case '\r': len += 2; putchar('\\'); putchar('r'); break;
276 case '\n': len += 2; putchar('\\'); putchar('n'); break;
277 case '\t': len += 2; putchar('\\'); putchar('t'); break;
278 case '\f': len += 2; putchar('\\'); putchar('f'); break;
279 case '\v': len += 2; putchar('\\'); putchar('v'); break;
280 case '\\': len += 2; putchar('\\'); putchar('\\'); break;
281 case '"': len += 2; putchar('\\'); putchar('"'); break;
293 static void trace_print_global(qc_program_t *prog, unsigned int glob, int vtype) {
294 static char spaces[28+1] = " ";
295 prog_section_def_t *def;
300 if ((len = printf("<null>,")) == -1)
306 def = prog_getdef(prog, glob);
307 value = (qcany_t*)(&prog->globals[glob]);
309 len = printf("[@%u] ", glob);
311 const char *name = prog_getstring(prog, def->name);
315 len += printf("%s ", name);
316 vtype = def->type & DEF_TYPEMASK;
325 len += printf("(%i),", value->_int);
328 len += printf("'%g %g %g',", value->vector[0],
334 len += print_escaped_string(prog_getstring(prog, value->string), sizeof(spaces)-len-5);
336 len += printf("(null)");
338 /* len += printf("\"%s\",", prog_getstring(prog, value->string)); */
342 len += printf("%g,", value->_float);
346 if (len < (int)sizeof(spaces)-1) {
347 spaces[sizeof(spaces)-1-len] = 0;
348 fputs(spaces, stdout);
349 spaces[sizeof(spaces)-1-len] = ' ';
353 static void prog_print_statement(qc_program_t *prog, prog_section_statement_t *st) {
354 if (st->opcode >= VINSTR_END) {
355 printf("<illegal instruction %d>\n", st->opcode);
358 if ((prog->xflags & VMXF_TRACE) && !prog->function_stack.empty()) {
360 for (i = 0; i < prog->function_stack.size(); ++i)
362 printf("%s:", prog->function_stack.back());
364 printf(" <> %-12s", util_instr_str[st->opcode]);
365 if (st->opcode >= INSTR_IF &&
366 st->opcode <= INSTR_IFNOT)
368 trace_print_global(prog, st->o1.u1, TYPE_FLOAT);
369 printf("%d\n", st->o2.s1);
371 else if (st->opcode >= INSTR_CALL0 &&
372 st->opcode <= INSTR_CALL8)
374 trace_print_global(prog, st->o1.u1, TYPE_FUNCTION);
377 else if (st->opcode == INSTR_GOTO)
379 printf("%i\n", st->o1.s1);
383 int t[3] = { TYPE_FLOAT, TYPE_FLOAT, TYPE_FLOAT };
387 t[1] = t[2] = TYPE_VECTOR;
390 t[0] = t[2] = TYPE_VECTOR;
393 t[0] = t[1] = TYPE_VECTOR;
399 t[0] = t[1] = t[2] = TYPE_VECTOR;
403 t[0] = t[1] = TYPE_STRING;
410 t[0] = t[1] = TYPE_VECTOR; t[2] = -1;
413 t[0] = t[1] = TYPE_STRING; t[2] = -1;
415 case INSTR_STORE_ENT:
416 t[0] = t[1] = TYPE_ENTITY; t[2] = -1;
418 case INSTR_STORE_FLD:
419 t[0] = t[1] = TYPE_FIELD; t[2] = -1;
421 case INSTR_STORE_FNC:
422 t[0] = t[1] = TYPE_FUNCTION; t[2] = -1;
425 t[0] = TYPE_VECTOR; t[1] = TYPE_ENTITY; t[2] = -1;
428 t[0] = TYPE_STRING; t[1] = TYPE_ENTITY; t[2] = -1;
430 case INSTR_STOREP_ENT:
431 t[0] = TYPE_ENTITY; t[1] = TYPE_ENTITY; t[2] = -1;
433 case INSTR_STOREP_FLD:
434 t[0] = TYPE_FIELD; t[1] = TYPE_ENTITY; t[2] = -1;
436 case INSTR_STOREP_FNC:
437 t[0] = TYPE_FUNCTION; t[1] = TYPE_ENTITY; t[2] = -1;
440 if (t[0] >= 0) trace_print_global(prog, st->o1.u1, t[0]);
441 else printf("(none), ");
442 if (t[1] >= 0) trace_print_global(prog, st->o2.u1, t[1]);
443 else printf("(none), ");
444 if (t[2] >= 0) trace_print_global(prog, st->o3.u1, t[2]);
445 else printf("(none)");
450 static qcint_t prog_enterfunction(qc_program_t *prog, prog_section_function_t *func) {
456 st.localsp = prog->localstack.size();
457 st.stmt = prog->statement;
460 if (prog->xflags & VMXF_TRACE) {
461 const char *str = prog_getstring(prog, func->name);
462 prog->function_stack.emplace_back(str);
465 #ifdef QCVM_BACKUP_STRATEGY_CALLER_VARS
466 if (prog->stack.size())
468 prog_section_function_t *cur;
469 cur = prog->stack.back().function;
472 qcint_t *globals = &prog->globals[0] + cur->firstlocal;
473 prog->localstack.insert(prog->localstack.end(), globals, globals + cur->locals);
478 qcint_t *globals = &prog->globals[0] + func->firstlocal;
479 prog->localstack.insert(prog->localstack.end(), globals, globals + func->locals);
483 /* copy parameters */
484 parampos = func->firstlocal;
485 for (p = 0; p < func->nargs; ++p)
488 for (s = 0; s < func->argsize[p]; ++s) {
489 prog->globals[parampos] = prog->globals[OFS_PARM0 + 3*p + s];
494 prog->stack.emplace_back(st);
499 static qcint_t prog_leavefunction(qc_program_t *prog) {
500 prog_section_function_t *prev = nullptr;
503 qc_exec_stack_t st = prog->stack.back();
505 if (prog->xflags & VMXF_TRACE) {
506 if (!prog->function_stack.empty())
507 prog->function_stack.pop_back();
510 #ifdef QCVM_BACKUP_STRATEGY_CALLER_VARS
511 if (prog->stack.size() > 1) {
512 prev = prog->stack[prog->stack.size()-2].function;
513 oldsp = prog->stack[prog->stack.size()-2].localsp;
516 prev = prog->stack[prog->stack.size()-1].function;
517 oldsp = prog->stack[prog->stack.size()-1].localsp;
520 qcint_t *globals = &prog->globals[0] + prev->firstlocal;
521 memcpy(globals, &prog->localstack[oldsp], prev->locals * sizeof(prog->localstack[0]));
522 prog->localstack.resize(oldsp);
525 prog->stack.pop_back();
527 return st.stmt - 1; /* offset the ++st */
530 bool prog_exec(qc_program_t *prog, prog_section_function_t *func, size_t flags, long maxjumps) {
532 size_t oldxflags = prog->xflags;
533 prog_section_statement_t *st;
536 prog->xflags = flags;
538 st = &prog->code[0] + prog_enterfunction(prog, func);
546 #define QCVM_PROFILE 0
552 #define QCVM_PROFILE 0
558 #define QCVM_PROFILE 1
562 case (VMXF_TRACE|VMXF_PROFILE):
564 #define QCVM_PROFILE 1
571 prog->xflags = oldxflags;
572 prog->localstack.clear();
579 /***********************************************************************
580 * main for when building the standalone executor
585 const char *type_name[TYPE_COUNT] = {
606 struct qcvm_parameter {
611 static std::vector<qcvm_parameter> main_params;
613 #define CheckArgs(num) do { \
614 if (prog->argc != (num)) { \
616 fprintf(stderr, "ERROR: invalid number of arguments for %s: %i, expected %i\n", \
617 __func__, prog->argc, (num)); \
622 #define GetGlobal(idx) ((qcany_t*)(&prog->globals[0] + (idx)))
623 #define GetArg(num) GetGlobal(OFS_PARM0 + 3*(num))
624 #define Return(any) *(GetGlobal(OFS_RETURN)) = (any)
626 static int qc_print(qc_program_t *prog) {
628 const char *laststr = nullptr;
629 for (i = 0; i < (size_t)prog->argc; ++i) {
630 qcany_t *str = (qcany_t*)(&prog->globals[0] + OFS_PARM0 + 3*i);
631 laststr = prog_getstring(prog, str->string);
632 printf("%s", laststr);
634 if (laststr && (prog->xflags & VMXF_TRACE)) {
635 size_t len = strlen(laststr);
636 if (!len || laststr[len-1] != '\n')
642 static int qc_error(qc_program_t *prog) {
643 fprintf(stderr, "*** VM raised an error:\n");
649 static int qc_ftos(qc_program_t *prog) {
655 util_snprintf(buffer, sizeof(buffer), "%g", num->_float);
656 str.string = prog_tempstring(prog, buffer);
661 static int qc_stof(qc_program_t *prog) {
666 num._float = (float)strtod(prog_getstring(prog, str->string), nullptr);
671 static int qc_stov(qc_program_t *prog) {
676 (void)util_sscanf(prog_getstring(prog, str->string), " ' %f %f %f ' ",
684 static int qc_vtos(qc_program_t *prog) {
690 util_snprintf(buffer, sizeof(buffer), "'%g %g %g'", num->vector[0], num->vector[1], num->vector[2]);
691 str.string = prog_tempstring(prog, buffer);
696 static int qc_etos(qc_program_t *prog) {
702 util_snprintf(buffer, sizeof(buffer), "%i", num->_int);
703 str.string = prog_tempstring(prog, buffer);
708 static int qc_spawn(qc_program_t *prog) {
711 ent.edict = prog_spawn_entity(prog);
713 return (ent.edict ? 0 : -1);
716 static int qc_kill(qc_program_t *prog) {
720 prog_free_entity(prog, ent->edict);
724 static int qc_sqrt(qc_program_t *prog) {
728 out._float = sqrt(num->_float);
733 static int qc_vlen(qc_program_t *prog) {
737 len._float = sqrt(vec->vector[0] * vec->vector[0] +
738 vec->vector[1] * vec->vector[1] +
739 vec->vector[2] * vec->vector[2]);
744 static int qc_normalize(qc_program_t *prog) {
750 len = sqrt(vec->vector[0] * vec->vector[0] +
751 vec->vector[1] * vec->vector[1] +
752 vec->vector[2] * vec->vector[2]);
757 out.vector[0] = len * vec->vector[0];
758 out.vector[1] = len * vec->vector[1];
759 out.vector[2] = len * vec->vector[2];
764 static int qc_strcat(qc_program_t *prog) {
767 qcany_t *str1, *str2;
776 cstr1 = prog_getstring(prog, str1->string);
777 cstr2 = prog_getstring(prog, str2->string);
778 len1 = strlen(cstr1);
779 len2 = strlen(cstr2);
780 buffer = (char*)mem_a(len1 + len2 + 1);
781 memcpy(buffer, cstr1, len1);
782 memcpy(buffer+len1, cstr2, len2+1);
783 out.string = prog_tempstring(prog, buffer);
789 static int qc_strcmp(qc_program_t *prog) {
790 qcany_t *str1, *str2;
796 if (prog->argc != 2 && prog->argc != 3) {
797 fprintf(stderr, "ERROR: invalid number of arguments for strcmp/strncmp: %i, expected 2 or 3\n",
804 cstr1 = prog_getstring(prog, str1->string);
805 cstr2 = prog_getstring(prog, str2->string);
807 out._float = strncmp(cstr1, cstr2, GetArg(2)->_float);
809 out._float = strcmp(cstr1, cstr2);
814 static int qc_floor(qc_program_t *prog) {
818 out._float = floor(num->_float);
823 static int qc_pow(qc_program_t *prog) {
824 qcany_t *base, *exp, out;
828 out._float = powf(base->_float, exp->_float);
833 static prog_builtin_t qc_builtins[] = {
846 &qc_normalize, /* 12 */
853 static const char *arg0 = nullptr;
855 static void version(void) {
856 printf("GMQCC-QCVM %d.%d.%d Built %s %s\n",
865 static void usage(void) {
866 printf("usage: %s [options] [parameters] file\n", arg0);
867 printf("options:\n");
868 printf(" -h, --help print this message\n"
869 " -trace trace the execution\n"
870 " -profile perform profiling during execution\n"
871 " -info print information from the prog's header\n"
872 " -disasm disassemble and exit\n"
873 " -disasm-func func disassemble and exit\n"
874 " -printdefs list the defs section\n"
875 " -printfields list the field section\n"
876 " -printfuns list functions information\n"
878 " -vv be even more verbose\n");
879 printf("parameters:\n");
880 printf(" -vector <V> pass a vector parameter to main()\n"
881 " -float <f> pass a float parameter to main()\n"
882 " -string <s> pass a string parameter to main() \n");
885 static void prog_main_setparams(qc_program_t *prog) {
889 for (i = 0; i < main_params.size(); ++i) {
890 arg = GetGlobal(OFS_PARM0 + 3*i);
894 switch (main_params[i].vtype) {
896 (void)util_sscanf(main_params[i].value, " %f %f %f ",
902 arg->_float = atof(main_params[i].value);
905 arg->string = prog_tempstring(prog, main_params[i].value);
908 fprintf(stderr, "error: unhandled parameter type: %i\n", main_params[i].vtype);
914 static void prog_disasm_function(qc_program_t *prog, size_t id);
916 int main(int argc, char **argv) {
920 size_t xflags = VMXF_DEFAULT;
921 bool opts_printfields = false;
922 bool opts_printdefs = false;
923 bool opts_printfuns = false;
924 bool opts_disasm = false;
925 bool opts_info = false;
927 const char *progsfile = nullptr;
929 std::vector<const char*> dis_list;
939 if (!strcmp(argv[1], "-h") ||
940 !strcmp(argv[1], "-help") ||
941 !strcmp(argv[1], "--help"))
946 else if (!strcmp(argv[1], "-v")) {
951 else if (!strncmp(argv[1], "-vv", 3)) {
952 const char *av = argv[1]+1;
964 else if (!strcmp(argv[1], "-version") ||
965 !strcmp(argv[1], "--version"))
970 else if (!strcmp(argv[1], "-trace")) {
973 xflags |= VMXF_TRACE;
975 else if (!strcmp(argv[1], "-profile")) {
978 xflags |= VMXF_PROFILE;
980 else if (!strcmp(argv[1], "-info")) {
986 else if (!strcmp(argv[1], "-disasm")) {
992 else if (!strcmp(argv[1], "-disasm-func")) {
999 dis_list.emplace_back(argv[1]);
1004 else if (!strcmp(argv[1], "-printdefs")) {
1007 opts_printdefs = true;
1010 else if (!strcmp(argv[1], "-printfuns")) {
1013 opts_printfuns = true;
1016 else if (!strcmp(argv[1], "-printfields")) {
1019 opts_printfields = true;
1022 else if (!strcmp(argv[1], "-vector") ||
1023 !strcmp(argv[1], "-string") ||
1024 !strcmp(argv[1], "-float") )
1027 if (argv[1][1] == 'f')
1028 p.vtype = TYPE_FLOAT;
1029 else if (argv[1][1] == 's')
1030 p.vtype = TYPE_STRING;
1031 else if (argv[1][1] == 'v')
1032 p.vtype = TYPE_VECTOR;
1034 p.vtype = TYPE_VOID;
1044 main_params.emplace_back(p);
1048 else if (!strcmp(argv[1], "--")) {
1053 else if (argv[1][0] != '-') {
1055 fprintf(stderr, "only 1 program file may be specified\n");
1059 progsfile = argv[1];
1065 fprintf(stderr, "unknown parameter: %s\n", argv[1]);
1071 if (argc == 2 && !progsfile) {
1072 progsfile = argv[1];
1078 fprintf(stderr, "must specify a program to execute\n");
1083 prog = prog_load(progsfile, noexec);
1085 fprintf(stderr, "failed to load program '%s'\n", progsfile);
1089 prog->builtins = qc_builtins;
1090 prog->builtins_count = GMQCC_ARRAY_COUNT(qc_builtins);
1093 printf("Program's system-checksum = 0x%04x\n", (unsigned int)prog->crc16);
1094 printf("Entity field space: %u\n", (unsigned int)prog->entityfields);
1095 printf("Globals: %zu\n", prog->globals.size());
1104 prog->fields.size(),
1105 prog->functions.size(),
1106 prog->strings.size());
1113 for (i = 0; i < dis_list.size(); ++i) {
1115 printf("Looking for `%s`\n", dis_list[i]);
1116 for (k = 1; k < prog->functions.size(); ++k) {
1117 const char *name = prog_getstring(prog, prog->functions[k].name);
1118 if (!strcmp(name, dis_list[i])) {
1119 prog_disasm_function(prog, k);
1125 for (i = 1; i < prog->functions.size(); ++i)
1126 prog_disasm_function(prog, i);
1129 if (opts_printdefs) {
1130 const char *getstring = nullptr;
1131 for (auto &it : prog->defs) {
1132 printf("Global: %8s %-16s at %u%s",
1133 type_name[it.type & DEF_TYPEMASK],
1134 prog_getstring(prog, it.name),
1135 (unsigned int)it.offset,
1136 ((it.type & DEF_SAVEGLOBAL) ? " [SAVE]" : ""));
1138 switch (it.type & DEF_TYPEMASK) {
1140 printf(" [init: %g]", ((qcany_t*)(&prog->globals[0] + it.offset))->_float);
1143 printf(" [init: %i]", (int)( ((qcany_t*)(&prog->globals[0] + it.offset))->_int ));
1149 printf(" [init: %u]", (unsigned)( ((qcany_t*)(&prog->globals[0] + it.offset))->_int ));
1152 getstring = prog_getstring(prog, ((qcany_t*)(&prog->globals[0] + it.offset))->string);
1153 printf(" [init: `");
1154 print_escaped_string(getstring, strlen(getstring));
1164 if (opts_printfields) {
1165 for (auto &it : prog->fields) {
1166 printf("Field: %8s %-16s at %d%s\n",
1168 prog_getstring(prog, it.name),
1170 ((it.type & DEF_SAVEGLOBAL) ? " [SAVE]" : ""));
1173 if (opts_printfuns) {
1174 for (auto &it : prog->functions) {
1176 printf("Function: %-16s taking %u parameters:(",
1177 prog_getstring(prog, it.name),
1178 (unsigned int)it.nargs);
1179 for (a = 0; a < it.nargs; ++a) {
1180 printf(" %i", it.argsize[a]);
1183 int32_t start = it.entry;
1185 printf(") builtin %i\n", (int)-start);
1188 prog_section_statement_t *st = &prog->code[0] + start;
1189 for (;st->opcode != INSTR_DONE; ++st)
1191 printf(") - %zu instructions", funsize);
1193 printf(" - locals: %i + %i\n",
1202 printf(") locals: %i + %i\n",
1211 for (i = 1; i < prog->functions.size(); ++i) {
1212 const char *name = prog_getstring(prog, prog->functions[i].name);
1213 if (!strcmp(name, "main"))
1214 fnmain = (qcint_t)i;
1218 prog_main_setparams(prog);
1219 prog_exec(prog, &prog->functions[fnmain], xflags, VM_JUMPS_DEFAULT);
1222 fprintf(stderr, "No main function found\n");
1229 static void prog_disasm_function(qc_program_t *prog, size_t id) {
1230 prog_section_function_t *fdef = &prog->functions[0] + id;
1231 prog_section_statement_t *st;
1233 if (fdef->entry < 0) {
1234 printf("FUNCTION \"%s\" = builtin #%i\n", prog_getstring(prog, fdef->name), (int)-fdef->entry);
1238 printf("FUNCTION \"%s\"\n", prog_getstring(prog, fdef->name));
1240 st = &prog->code[0] + fdef->entry;
1241 while (st->opcode != INSTR_DONE) {
1242 prog_print_statement(prog, st);
1246 #else /* !QCVM_LOOP */
1248 * Everything from here on is not including into the compilation of the
1249 * executor. This is simply code that is #included via #include __FILE__
1250 * see when QCVM_LOOP is defined, the rest of the code above do not get
1251 * re-included. So this really just acts like one large macro, but it
1252 * sort of isn't, which makes it nicer looking.
1255 #define OPA ( (qcany_t*) (&prog->globals[0] + st->o1.u1) )
1256 #define OPB ( (qcany_t*) (&prog->globals[0] + st->o2.u1) )
1257 #define OPC ( (qcany_t*) (&prog->globals[0] + st->o3.u1) )
1259 #define GLOBAL(x) ( (qcany_t*) (&prog->globals[0] + (x)) )
1261 /* to be consistent with current darkplaces behaviour */
1262 #if !defined(FLOAT_IS_TRUE_FOR_INT)
1263 # define FLOAT_IS_TRUE_FOR_INT(x) ( (x) & 0x7FFFFFFF )
1266 while (prog->vmerror == 0) {
1267 prog_section_function_t *newf;
1274 prog->profile[st - &prog->code[0]]++;
1278 prog_print_statement(prog, st);
1284 qcvmerror(prog, "Illegal instruction in %s\n", prog->filename.c_str());
1289 /* TODO: add instruction count to function profile count */
1290 GLOBAL(OFS_RETURN)->ivector[0] = OPA->ivector[0];
1291 GLOBAL(OFS_RETURN)->ivector[1] = OPA->ivector[1];
1292 GLOBAL(OFS_RETURN)->ivector[2] = OPA->ivector[2];
1294 st = &prog->code[0] + prog_leavefunction(prog);
1295 if (prog->stack.empty())
1301 OPC->_float = OPA->_float * OPB->_float;
1304 OPC->_float = OPA->vector[0]*OPB->vector[0] +
1305 OPA->vector[1]*OPB->vector[1] +
1306 OPA->vector[2]*OPB->vector[2];
1310 qcfloat_t f = OPA->_float;
1311 OPC->vector[0] = f * OPB->vector[0];
1312 OPC->vector[1] = f * OPB->vector[1];
1313 OPC->vector[2] = f * OPB->vector[2];
1318 qcfloat_t f = OPB->_float;
1319 OPC->vector[0] = f * OPA->vector[0];
1320 OPC->vector[1] = f * OPA->vector[1];
1321 OPC->vector[2] = f * OPA->vector[2];
1325 if (OPB->_float != 0.0f)
1326 OPC->_float = OPA->_float / OPB->_float;
1332 OPC->_float = OPA->_float + OPB->_float;
1335 OPC->vector[0] = OPA->vector[0] + OPB->vector[0];
1336 OPC->vector[1] = OPA->vector[1] + OPB->vector[1];
1337 OPC->vector[2] = OPA->vector[2] + OPB->vector[2];
1340 OPC->_float = OPA->_float - OPB->_float;
1343 OPC->vector[0] = OPA->vector[0] - OPB->vector[0];
1344 OPC->vector[1] = OPA->vector[1] - OPB->vector[1];
1345 OPC->vector[2] = OPA->vector[2] - OPB->vector[2];
1349 OPC->_float = (OPA->_float == OPB->_float);
1352 OPC->_float = ((OPA->vector[0] == OPB->vector[0]) &&
1353 (OPA->vector[1] == OPB->vector[1]) &&
1354 (OPA->vector[2] == OPB->vector[2]) );
1357 OPC->_float = !strcmp(prog_getstring(prog, OPA->string),
1358 prog_getstring(prog, OPB->string));
1361 OPC->_float = (OPA->_int == OPB->_int);
1364 OPC->_float = (OPA->function == OPB->function);
1367 OPC->_float = (OPA->_float != OPB->_float);
1370 OPC->_float = ((OPA->vector[0] != OPB->vector[0]) ||
1371 (OPA->vector[1] != OPB->vector[1]) ||
1372 (OPA->vector[2] != OPB->vector[2]) );
1375 OPC->_float = !!strcmp(prog_getstring(prog, OPA->string),
1376 prog_getstring(prog, OPB->string));
1379 OPC->_float = (OPA->_int != OPB->_int);
1382 OPC->_float = (OPA->function != OPB->function);
1386 OPC->_float = (OPA->_float <= OPB->_float);
1389 OPC->_float = (OPA->_float >= OPB->_float);
1392 OPC->_float = (OPA->_float < OPB->_float);
1395 OPC->_float = (OPA->_float > OPB->_float);
1400 case INSTR_LOAD_FLD:
1401 case INSTR_LOAD_ENT:
1402 case INSTR_LOAD_FNC:
1403 if (OPA->edict < 0 || OPA->edict >= prog->entities) {
1404 qcvmerror(prog, "progs `%s` attempted to read an out of bounds entity", prog->filename.c_str());
1407 if ((unsigned int)(OPB->_int) >= (unsigned int)(prog->entityfields)) {
1408 qcvmerror(prog, "prog `%s` attempted to read an invalid field from entity (%i)",
1409 prog->filename.c_str(),
1413 ed = prog_getedict(prog, OPA->edict);
1414 OPC->_int = ((qcany_t*)( ((qcint_t*)ed) + OPB->_int ))->_int;
1417 if (OPA->edict < 0 || OPA->edict >= prog->entities) {
1418 qcvmerror(prog, "progs `%s` attempted to read an out of bounds entity", prog->filename.c_str());
1421 if (OPB->_int < 0 || OPB->_int + 3 > (qcint_t)prog->entityfields)
1423 qcvmerror(prog, "prog `%s` attempted to read an invalid field from entity (%i)",
1424 prog->filename.c_str(),
1428 ed = prog_getedict(prog, OPA->edict);
1429 ptr = (qcany_t*)( ((qcint_t*)ed) + OPB->_int );
1430 OPC->ivector[0] = ptr->ivector[0];
1431 OPC->ivector[1] = ptr->ivector[1];
1432 OPC->ivector[2] = ptr->ivector[2];
1436 if (OPA->edict < 0 || OPA->edict >= prog->entities) {
1437 qcvmerror(prog, "prog `%s` attempted to address an out of bounds entity %i", prog->filename.c_str(), OPA->edict);
1440 if ((unsigned int)(OPB->_int) >= (unsigned int)(prog->entityfields))
1442 qcvmerror(prog, "prog `%s` attempted to read an invalid field from entity (%i)",
1443 prog->filename.c_str(),
1448 ed = prog_getedict(prog, OPA->edict);
1449 OPC->_int = ((qcint_t*)ed) - prog->entitydata.data() + OPB->_int;
1454 case INSTR_STORE_ENT:
1455 case INSTR_STORE_FLD:
1456 case INSTR_STORE_FNC:
1457 OPB->_int = OPA->_int;
1460 OPB->ivector[0] = OPA->ivector[0];
1461 OPB->ivector[1] = OPA->ivector[1];
1462 OPB->ivector[2] = OPA->ivector[2];
1465 case INSTR_STOREP_F:
1466 case INSTR_STOREP_S:
1467 case INSTR_STOREP_ENT:
1468 case INSTR_STOREP_FLD:
1469 case INSTR_STOREP_FNC:
1470 if (OPB->_int < 0 || OPB->_int >= (qcint_t)prog->entitydata.size()) {
1471 qcvmerror(prog, "`%s` attempted to write to an out of bounds edict (%i)", prog->filename.c_str(), OPB->_int);
1474 if (OPB->_int < (qcint_t)prog->entityfields && !prog->allowworldwrites)
1475 qcvmerror(prog, "`%s` tried to assign to world.%s (field %i)\n",
1476 prog->filename.c_str(),
1477 prog_getstring(prog, prog_entfield(prog, OPB->_int)->name),
1479 ptr = (qcany_t*)&prog->entitydata[OPB->_int];
1480 ptr->_int = OPA->_int;
1482 case INSTR_STOREP_V:
1483 if (OPB->_int < 0 || OPB->_int + 2 >= (qcint_t)prog->entitydata.size()) {
1484 qcvmerror(prog, "`%s` attempted to write to an out of bounds edict (%i)", prog->filename.c_str(), OPB->_int);
1487 if (OPB->_int < (qcint_t)prog->entityfields && !prog->allowworldwrites)
1488 qcvmerror(prog, "`%s` tried to assign to world.%s (field %i)\n",
1489 prog->filename.c_str(),
1490 prog_getstring(prog, prog_entfield(prog, OPB->_int)->name),
1492 ptr = (qcany_t*)&prog->entitydata[OPB->_int];
1493 ptr->ivector[0] = OPA->ivector[0];
1494 ptr->ivector[1] = OPA->ivector[1];
1495 ptr->ivector[2] = OPA->ivector[2];
1499 OPC->_float = !FLOAT_IS_TRUE_FOR_INT(OPA->_int);
1502 OPC->_float = !OPA->vector[0] &&
1507 OPC->_float = !OPA->string ||
1508 !*prog_getstring(prog, OPA->string);
1511 OPC->_float = (OPA->edict == 0);
1514 OPC->_float = !OPA->function;
1518 /* this is consistent with darkplaces' behaviour */
1519 if(FLOAT_IS_TRUE_FOR_INT(OPA->_int))
1521 st += st->o2.s1 - 1; /* offset the s++ */
1522 if (++jumpcount >= maxjumps)
1523 qcvmerror(prog, "`%s` hit the runaway loop counter limit of %li jumps", prog->filename.c_str(), jumpcount);
1527 if(!FLOAT_IS_TRUE_FOR_INT(OPA->_int))
1529 st += st->o2.s1 - 1; /* offset the s++ */
1530 if (++jumpcount >= maxjumps)
1531 qcvmerror(prog, "`%s` hit the runaway loop counter limit of %li jumps", prog->filename.c_str(), jumpcount);
1544 prog->argc = st->opcode - INSTR_CALL0;
1546 qcvmerror(prog, "nullptr function in `%s`", prog->filename.c_str());
1548 if(!OPA->function || OPA->function >= (qcint_t)prog->functions.size())
1550 qcvmerror(prog, "CALL outside the program in `%s`", prog->filename.c_str());
1554 newf = &prog->functions[OPA->function];
1557 prog->statement = (st - &prog->code[0]) + 1;
1559 if (newf->entry < 0)
1561 /* negative statements are built in functions */
1562 qcint_t builtinnumber = -newf->entry;
1563 if (builtinnumber < (qcint_t)prog->builtins_count && prog->builtins[builtinnumber])
1564 prog->builtins[builtinnumber](prog);
1566 qcvmerror(prog, "No such builtin #%i in %s! Try updating your gmqcc sources",
1567 builtinnumber, prog->filename.c_str());
1570 st = &prog->code[0] + prog_enterfunction(prog, newf) - 1; /* offset st++ */
1577 qcfloat_t *nextthink;
1580 if (!prog->supports_state) {
1581 qcvmerror(prog, "`%s` tried to execute a STATE operation but misses its defs!", prog->filename.c_str());
1584 ed = prog_getedict(prog, prog->globals[prog->cached_globals.self]);
1585 ((qcint_t*)ed)[prog->cached_fields.think] = OPB->function;
1587 frame = (qcfloat_t*)&((qcint_t*)ed)[prog->cached_fields.frame];
1588 *frame = OPA->_float;
1589 nextthink = (qcfloat_t*)&((qcint_t*)ed)[prog->cached_fields.nextthink];
1590 time = (qcfloat_t*)(&prog->globals[0] + prog->cached_globals.time);
1591 *nextthink = *time + 0.1;
1596 st += st->o1.s1 - 1; /* offset the s++ */
1597 if (++jumpcount == 10000000)
1598 qcvmerror(prog, "`%s` hit the runaway loop counter limit of %li jumps", prog->filename.c_str(), jumpcount);
1602 OPC->_float = FLOAT_IS_TRUE_FOR_INT(OPA->_int) &&
1603 FLOAT_IS_TRUE_FOR_INT(OPB->_int);
1606 OPC->_float = FLOAT_IS_TRUE_FOR_INT(OPA->_int) ||
1607 FLOAT_IS_TRUE_FOR_INT(OPB->_int);
1611 OPC->_float = ((int)OPA->_float) & ((int)OPB->_float);
1614 OPC->_float = ((int)OPA->_float) | ((int)OPB->_float);
1621 #endif /* !QCVM_LOOP */