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 if (prog->entitydata.size())
117 memset(prog->entitydata.data(), 0, sizeof(prog->entitydata[0]) * prog->entityfields);
120 /* cache some globals and fields from names */
121 for (auto &it : prog->defs) {
122 const char *name = prog_getstring(prog, it.name);
123 if (!strcmp(name, "self")) {
124 prog->cached_globals.self = it.offset;
127 else if (!strcmp(name, "time")) {
128 prog->cached_globals.time = it.offset;
132 for (auto &it : prog->fields) {
133 const char *name = prog_getstring(prog, it.name);
134 if (!strcmp(name, "think")) {
135 prog->cached_fields.think = it.offset;
138 else if (!strcmp(name, "nextthink")) {
139 prog->cached_fields.nextthink = it.offset;
140 has_nextthink = true;
142 else if (!strcmp(name, "frame")) {
143 prog->cached_fields.frame = it.offset;
147 if (has_self && has_time && has_think && has_nextthink && has_frame)
148 prog->supports_state = true;
159 void prog_delete(qc_program_t *prog)
164 /***********************************************************************
168 const char* prog_getstring(qc_program_t *prog, qcint_t str) {
169 /* cast for return required for C++ */
170 if (str < 0 || str >= (qcint_t)prog->strings.size())
171 return "<<<invalid string>>>";
173 return &prog->strings[0] + str;
176 prog_section_def_t* prog_entfield(qc_program_t *prog, qcint_t off) {
177 for (auto &it : prog->fields)
178 if (it.offset == off)
183 prog_section_def_t* prog_getdef(qc_program_t *prog, qcint_t off)
185 for (auto &it : prog->defs)
186 if (it.offset == off)
191 qcany_t* prog_getedict(qc_program_t *prog, qcint_t e) {
192 if (e >= (qcint_t)prog->entitypool.size()) {
194 fprintf(stderr, "Accessing out of bounds edict %i\n", (int)e);
197 return (qcany_t*)&prog->entitydata[prog->entityfields * e];
200 static qcint_t prog_spawn_entity(qc_program_t *prog) {
203 for (e = 0; e < (qcint_t)prog->entitypool.size(); ++e) {
204 if (!prog->entitypool[e]) {
205 data = (char*)&prog->entitydata[prog->entityfields * e];
206 memset(data, 0, prog->entityfields * sizeof(qcint_t));
210 prog->entitypool.emplace_back(true);
212 size_t sz = prog->entitydata.size();
213 prog->entitydata.resize(sz + prog->entityfields);
214 data = (char*)&prog->entitydata[sz];
215 memset(data, 0, prog->entityfields * sizeof(qcint_t));
220 static void prog_free_entity(qc_program_t *prog, qcint_t e) {
223 fprintf(stderr, "Trying to free world entity\n");
226 if (e >= (qcint_t)prog->entitypool.size()) {
228 fprintf(stderr, "Trying to free out of bounds entity\n");
231 if (!prog->entitypool[e]) {
233 fprintf(stderr, "Double free on entity\n");
236 prog->entitypool[e] = false;
239 qcint_t prog_tempstring(qc_program_t *prog, const char *str) {
240 size_t len = strlen(str);
241 size_t at = prog->tempstring_at;
243 /* when we reach the end we start over */
244 if (at + len >= prog->strings.size())
245 at = prog->tempstring_start;
247 /* when it doesn't fit, reallocate */
248 if (at + len >= prog->strings.size())
250 prog->strings.resize(prog->strings.size() + len+1);
251 memcpy(&prog->strings[0] + at, str, len+1);
255 /* when it fits, just copy */
256 memcpy(&prog->strings[0] + at, str, len+1);
257 prog->tempstring_at += len+1;
261 static size_t print_escaped_string(const char *str, size_t maxlen) {
264 --maxlen; /* because we're lazy and have escape sequences */
274 case '\a': len += 2; putchar('\\'); putchar('a'); break;
275 case '\b': len += 2; putchar('\\'); putchar('b'); break;
276 case '\r': len += 2; putchar('\\'); putchar('r'); break;
277 case '\n': len += 2; putchar('\\'); putchar('n'); break;
278 case '\t': len += 2; putchar('\\'); putchar('t'); break;
279 case '\f': len += 2; putchar('\\'); putchar('f'); break;
280 case '\v': len += 2; putchar('\\'); putchar('v'); break;
281 case '\\': len += 2; putchar('\\'); putchar('\\'); break;
282 case '"': len += 2; putchar('\\'); putchar('"'); break;
294 static void trace_print_global(qc_program_t *prog, unsigned int glob, int vtype) {
295 static char spaces[28+1] = " ";
296 prog_section_def_t *def;
301 if ((len = printf("<null>,")) == -1)
307 def = prog_getdef(prog, glob);
308 value = (qcany_t*)(&prog->globals[glob]);
310 len = printf("[@%u] ", glob);
312 const char *name = prog_getstring(prog, def->name);
316 len += printf("%s ", name);
317 vtype = def->type & DEF_TYPEMASK;
326 len += printf("(%i),", value->_int);
329 len += printf("'%g %g %g',", value->vector[0],
335 len += print_escaped_string(prog_getstring(prog, value->string), sizeof(spaces)-len-5);
337 len += printf("(null)");
339 /* len += printf("\"%s\",", prog_getstring(prog, value->string)); */
343 len += printf("%g,", value->_float);
347 if (len < (int)sizeof(spaces)-1) {
348 spaces[sizeof(spaces)-1-len] = 0;
349 fputs(spaces, stdout);
350 spaces[sizeof(spaces)-1-len] = ' ';
354 static void prog_print_statement(qc_program_t *prog, prog_section_statement_t *st) {
355 if (st->opcode >= VINSTR_END) {
356 printf("<illegal instruction %d>\n", st->opcode);
359 if ((prog->xflags & VMXF_TRACE) && !prog->function_stack.empty()) {
361 for (i = 0; i < prog->function_stack.size(); ++i)
363 printf("%s:", prog->function_stack.back());
365 printf(" <> %-12s", util_instr_str[st->opcode]);
366 if (st->opcode >= INSTR_IF &&
367 st->opcode <= INSTR_IFNOT)
369 trace_print_global(prog, st->o1.u1, TYPE_FLOAT);
370 printf("%d\n", st->o2.s1);
372 else if (st->opcode >= INSTR_CALL0 &&
373 st->opcode <= INSTR_CALL8)
375 trace_print_global(prog, st->o1.u1, TYPE_FUNCTION);
378 else if (st->opcode == INSTR_GOTO)
380 printf("%i\n", st->o1.s1);
384 int t[3] = { TYPE_FLOAT, TYPE_FLOAT, TYPE_FLOAT };
388 t[1] = t[2] = TYPE_VECTOR;
391 t[0] = t[2] = TYPE_VECTOR;
394 t[0] = t[1] = TYPE_VECTOR;
400 t[0] = t[1] = t[2] = TYPE_VECTOR;
404 t[0] = t[1] = TYPE_STRING;
411 t[0] = t[1] = TYPE_VECTOR; t[2] = -1;
414 t[0] = t[1] = TYPE_STRING; t[2] = -1;
416 case INSTR_STORE_ENT:
417 t[0] = t[1] = TYPE_ENTITY; t[2] = -1;
419 case INSTR_STORE_FLD:
420 t[0] = t[1] = TYPE_FIELD; t[2] = -1;
422 case INSTR_STORE_FNC:
423 t[0] = t[1] = TYPE_FUNCTION; t[2] = -1;
426 t[0] = TYPE_VECTOR; t[1] = TYPE_ENTITY; t[2] = -1;
429 t[0] = TYPE_STRING; t[1] = TYPE_ENTITY; t[2] = -1;
431 case INSTR_STOREP_ENT:
432 t[0] = TYPE_ENTITY; t[1] = TYPE_ENTITY; t[2] = -1;
434 case INSTR_STOREP_FLD:
435 t[0] = TYPE_FIELD; t[1] = TYPE_ENTITY; t[2] = -1;
437 case INSTR_STOREP_FNC:
438 t[0] = TYPE_FUNCTION; t[1] = TYPE_ENTITY; t[2] = -1;
441 if (t[0] >= 0) trace_print_global(prog, st->o1.u1, t[0]);
442 else printf("(none), ");
443 if (t[1] >= 0) trace_print_global(prog, st->o2.u1, t[1]);
444 else printf("(none), ");
445 if (t[2] >= 0) trace_print_global(prog, st->o3.u1, t[2]);
446 else printf("(none)");
451 static qcint_t prog_enterfunction(qc_program_t *prog, prog_section_function_t *func) {
457 st.localsp = prog->localstack.size();
458 st.stmt = prog->statement;
461 if (prog->xflags & VMXF_TRACE) {
462 const char *str = prog_getstring(prog, func->name);
463 prog->function_stack.emplace_back(str);
466 #ifdef QCVM_BACKUP_STRATEGY_CALLER_VARS
467 if (prog->stack.size())
469 prog_section_function_t *cur;
470 cur = prog->stack.back().function;
473 qcint_t *globals = &prog->globals[0] + cur->firstlocal;
474 prog->localstack.insert(prog->localstack.end(), globals, globals + cur->locals);
479 qcint_t *globals = &prog->globals[0] + func->firstlocal;
480 prog->localstack.insert(prog->localstack.end(), globals, globals + func->locals);
484 /* copy parameters */
485 parampos = func->firstlocal;
486 for (p = 0; p < func->nargs; ++p)
489 for (s = 0; s < func->argsize[p]; ++s) {
490 prog->globals[parampos] = prog->globals[OFS_PARM0 + 3*p + s];
495 prog->stack.emplace_back(st);
500 static qcint_t prog_leavefunction(qc_program_t *prog) {
501 prog_section_function_t *prev = nullptr;
504 qc_exec_stack_t st = prog->stack.back();
506 if (prog->xflags & VMXF_TRACE) {
507 if (!prog->function_stack.empty())
508 prog->function_stack.pop_back();
511 #ifdef QCVM_BACKUP_STRATEGY_CALLER_VARS
512 if (prog->stack.size() > 1) {
513 prev = prog->stack[prog->stack.size()-2].function;
514 oldsp = prog->stack[prog->stack.size()-2].localsp;
517 prev = prog->stack[prog->stack.size()-1].function;
518 oldsp = prog->stack[prog->stack.size()-1].localsp;
522 qcint_t *globals = &prog->globals[0] + prev->firstlocal;
523 memcpy(globals, &prog->localstack[oldsp], prev->locals * sizeof(prog->localstack[0]));
525 prog->localstack.resize(oldsp);
528 prog->stack.pop_back();
530 return st.stmt - 1; /* offset the ++st */
533 bool prog_exec(qc_program_t *prog, prog_section_function_t *func, size_t flags, long maxjumps) {
535 size_t oldxflags = prog->xflags;
536 prog_section_statement_t *st;
539 prog->xflags = flags;
541 st = &prog->code[0] + prog_enterfunction(prog, func);
549 #define QCVM_PROFILE 0
555 #define QCVM_PROFILE 0
561 #define QCVM_PROFILE 1
565 case (VMXF_TRACE|VMXF_PROFILE):
567 #define QCVM_PROFILE 1
574 prog->xflags = oldxflags;
575 prog->localstack.clear();
582 /***********************************************************************
583 * main for when building the standalone executor
588 const char *type_name[TYPE_COUNT] = {
609 struct qcvm_parameter {
614 static std::vector<qcvm_parameter> main_params;
616 #define CheckArgs(num) do { \
617 if (prog->argc != (num)) { \
619 fprintf(stderr, "ERROR: invalid number of arguments for %s: %i, expected %i\n", \
620 __func__, prog->argc, (num)); \
625 #define GetGlobal(idx) ((qcany_t*)(&prog->globals[0] + (idx)))
626 #define GetArg(num) GetGlobal(OFS_PARM0 + 3*(num))
627 #define Return(any) *(GetGlobal(OFS_RETURN)) = (any)
629 static int qc_print(qc_program_t *prog) {
631 const char *laststr = nullptr;
632 for (i = 0; i < (size_t)prog->argc; ++i) {
633 qcany_t *str = (qcany_t*)(&prog->globals[0] + OFS_PARM0 + 3*i);
634 laststr = prog_getstring(prog, str->string);
635 printf("%s", laststr);
637 if (laststr && (prog->xflags & VMXF_TRACE)) {
638 size_t len = strlen(laststr);
639 if (!len || laststr[len-1] != '\n')
645 static int qc_error(qc_program_t *prog) {
646 fprintf(stderr, "*** VM raised an error:\n");
652 static int qc_ftos(qc_program_t *prog) {
658 util_snprintf(buffer, sizeof(buffer), "%g", num->_float);
659 str.string = prog_tempstring(prog, buffer);
664 static int qc_stof(qc_program_t *prog) {
669 num._float = (float)strtod(prog_getstring(prog, str->string), nullptr);
674 static int qc_stov(qc_program_t *prog) {
679 (void)util_sscanf(prog_getstring(prog, str->string), " ' %f %f %f ' ",
687 static int qc_vtos(qc_program_t *prog) {
693 util_snprintf(buffer, sizeof(buffer), "'%g %g %g'", num->vector[0], num->vector[1], num->vector[2]);
694 str.string = prog_tempstring(prog, buffer);
699 static int qc_etos(qc_program_t *prog) {
705 util_snprintf(buffer, sizeof(buffer), "%i", num->_int);
706 str.string = prog_tempstring(prog, buffer);
711 static int qc_spawn(qc_program_t *prog) {
714 ent.edict = prog_spawn_entity(prog);
716 return (ent.edict ? 0 : -1);
719 static int qc_kill(qc_program_t *prog) {
723 prog_free_entity(prog, ent->edict);
727 static int qc_sqrt(qc_program_t *prog) {
731 out._float = sqrt(num->_float);
736 static int qc_vlen(qc_program_t *prog) {
740 len._float = sqrt(vec->vector[0] * vec->vector[0] +
741 vec->vector[1] * vec->vector[1] +
742 vec->vector[2] * vec->vector[2]);
747 static int qc_normalize(qc_program_t *prog) {
753 len = sqrt(vec->vector[0] * vec->vector[0] +
754 vec->vector[1] * vec->vector[1] +
755 vec->vector[2] * vec->vector[2]);
760 out.vector[0] = len * vec->vector[0];
761 out.vector[1] = len * vec->vector[1];
762 out.vector[2] = len * vec->vector[2];
767 static int qc_strcat(qc_program_t *prog) {
770 qcany_t *str1, *str2;
779 cstr1 = prog_getstring(prog, str1->string);
780 cstr2 = prog_getstring(prog, str2->string);
781 len1 = strlen(cstr1);
782 len2 = strlen(cstr2);
783 buffer = (char*)mem_a(len1 + len2 + 1);
784 memcpy(buffer, cstr1, len1);
785 memcpy(buffer+len1, cstr2, len2+1);
786 out.string = prog_tempstring(prog, buffer);
792 static int qc_strcmp(qc_program_t *prog) {
793 qcany_t *str1, *str2;
799 if (prog->argc != 2 && prog->argc != 3) {
800 fprintf(stderr, "ERROR: invalid number of arguments for strcmp/strncmp: %i, expected 2 or 3\n",
807 cstr1 = prog_getstring(prog, str1->string);
808 cstr2 = prog_getstring(prog, str2->string);
810 out._float = strncmp(cstr1, cstr2, GetArg(2)->_float);
812 out._float = strcmp(cstr1, cstr2);
817 static int qc_floor(qc_program_t *prog) {
821 out._float = floor(num->_float);
826 static int qc_pow(qc_program_t *prog) {
827 qcany_t *base, *exp, out;
831 out._float = powf(base->_float, exp->_float);
836 static prog_builtin_t qc_builtins[] = {
849 &qc_normalize, /* 12 */
856 static const char *arg0 = nullptr;
858 static void version(void) {
859 printf("GMQCC-QCVM %d.%d.%d Built %s %s\n",
868 static void usage(void) {
869 printf("usage: %s [options] [parameters] file\n", arg0);
870 printf("options:\n");
871 printf(" -h, --help print this message\n"
872 " -trace trace the execution\n"
873 " -profile perform profiling during execution\n"
874 " -info print information from the prog's header\n"
875 " -disasm disassemble and exit\n"
876 " -disasm-func func disassemble and exit\n"
877 " -printdefs list the defs section\n"
878 " -printfields list the field section\n"
879 " -printfuns list functions information\n"
881 " -vv be even more verbose\n");
882 printf("parameters:\n");
883 printf(" -vector <V> pass a vector parameter to main()\n"
884 " -float <f> pass a float parameter to main()\n"
885 " -string <s> pass a string parameter to main() \n");
888 static void prog_main_setparams(qc_program_t *prog) {
892 for (i = 0; i < main_params.size(); ++i) {
893 arg = GetGlobal(OFS_PARM0 + 3*i);
897 switch (main_params[i].vtype) {
899 (void)util_sscanf(main_params[i].value, " %f %f %f ",
905 arg->_float = atof(main_params[i].value);
908 arg->string = prog_tempstring(prog, main_params[i].value);
911 fprintf(stderr, "error: unhandled parameter type: %i\n", main_params[i].vtype);
917 static void prog_disasm_function(qc_program_t *prog, size_t id);
919 int main(int argc, char **argv) {
923 size_t xflags = VMXF_DEFAULT;
924 bool opts_printfields = false;
925 bool opts_printdefs = false;
926 bool opts_printfuns = false;
927 bool opts_disasm = false;
928 bool opts_info = false;
930 const char *progsfile = nullptr;
932 std::vector<const char*> dis_list;
942 if (!strcmp(argv[1], "-h") ||
943 !strcmp(argv[1], "-help") ||
944 !strcmp(argv[1], "--help"))
949 else if (!strcmp(argv[1], "-v")) {
954 else if (!strncmp(argv[1], "-vv", 3)) {
955 const char *av = argv[1]+1;
967 else if (!strcmp(argv[1], "-version") ||
968 !strcmp(argv[1], "--version"))
973 else if (!strcmp(argv[1], "-trace")) {
976 xflags |= VMXF_TRACE;
978 else if (!strcmp(argv[1], "-profile")) {
981 xflags |= VMXF_PROFILE;
983 else if (!strcmp(argv[1], "-info")) {
989 else if (!strcmp(argv[1], "-disasm")) {
995 else if (!strcmp(argv[1], "-disasm-func")) {
1002 dis_list.emplace_back(argv[1]);
1007 else if (!strcmp(argv[1], "-printdefs")) {
1010 opts_printdefs = true;
1013 else if (!strcmp(argv[1], "-printfuns")) {
1016 opts_printfuns = true;
1019 else if (!strcmp(argv[1], "-printfields")) {
1022 opts_printfields = true;
1025 else if (!strcmp(argv[1], "-vector") ||
1026 !strcmp(argv[1], "-string") ||
1027 !strcmp(argv[1], "-float") )
1030 if (argv[1][1] == 'f')
1031 p.vtype = TYPE_FLOAT;
1032 else if (argv[1][1] == 's')
1033 p.vtype = TYPE_STRING;
1034 else if (argv[1][1] == 'v')
1035 p.vtype = TYPE_VECTOR;
1037 p.vtype = TYPE_VOID;
1047 main_params.emplace_back(p);
1051 else if (!strcmp(argv[1], "--")) {
1056 else if (argv[1][0] != '-') {
1058 fprintf(stderr, "only 1 program file may be specified\n");
1062 progsfile = argv[1];
1068 fprintf(stderr, "unknown parameter: %s\n", argv[1]);
1074 if (argc == 2 && !progsfile) {
1075 progsfile = argv[1];
1081 fprintf(stderr, "must specify a program to execute\n");
1086 prog = prog_load(progsfile, noexec);
1088 fprintf(stderr, "failed to load program '%s'\n", progsfile);
1092 prog->builtins = qc_builtins;
1093 prog->builtins_count = GMQCC_ARRAY_COUNT(qc_builtins);
1096 printf("Program's system-checksum = 0x%04x\n", (unsigned int)prog->crc16);
1097 printf("Entity field space: %u\n", (unsigned int)prog->entityfields);
1098 printf("Globals: %zu\n", prog->globals.size());
1107 prog->fields.size(),
1108 prog->functions.size(),
1109 prog->strings.size());
1116 for (i = 0; i < dis_list.size(); ++i) {
1118 printf("Looking for `%s`\n", dis_list[i]);
1119 for (k = 1; k < prog->functions.size(); ++k) {
1120 const char *name = prog_getstring(prog, prog->functions[k].name);
1121 if (!strcmp(name, dis_list[i])) {
1122 prog_disasm_function(prog, k);
1128 for (i = 1; i < prog->functions.size(); ++i)
1129 prog_disasm_function(prog, i);
1132 if (opts_printdefs) {
1133 const char *getstring = nullptr;
1134 for (auto &it : prog->defs) {
1135 printf("Global: %8s %-16s at %u%s",
1136 type_name[it.type & DEF_TYPEMASK],
1137 prog_getstring(prog, it.name),
1138 (unsigned int)it.offset,
1139 ((it.type & DEF_SAVEGLOBAL) ? " [SAVE]" : ""));
1141 switch (it.type & DEF_TYPEMASK) {
1143 printf(" [init: %g]", ((qcany_t*)(&prog->globals[0] + it.offset))->_float);
1146 printf(" [init: %i]", (int)( ((qcany_t*)(&prog->globals[0] + it.offset))->_int ));
1152 printf(" [init: %u]", (unsigned)( ((qcany_t*)(&prog->globals[0] + it.offset))->_int ));
1155 getstring = prog_getstring(prog, ((qcany_t*)(&prog->globals[0] + it.offset))->string);
1156 printf(" [init: `");
1157 print_escaped_string(getstring, strlen(getstring));
1167 if (opts_printfields) {
1168 for (auto &it : prog->fields) {
1169 printf("Field: %8s %-16s at %d%s\n",
1171 prog_getstring(prog, it.name),
1173 ((it.type & DEF_SAVEGLOBAL) ? " [SAVE]" : ""));
1176 if (opts_printfuns) {
1177 for (auto &it : prog->functions) {
1179 printf("Function: %-16s taking %u parameters:(",
1180 prog_getstring(prog, it.name),
1181 (unsigned int)it.nargs);
1182 for (a = 0; a < it.nargs; ++a) {
1183 printf(" %i", it.argsize[a]);
1186 int32_t start = it.entry;
1188 printf(") builtin %i\n", (int)-start);
1191 prog_section_statement_t *st = &prog->code[0] + start;
1192 for (;st->opcode != INSTR_DONE; ++st)
1194 printf(") - %zu instructions", funsize);
1196 printf(" - locals: %i + %i\n",
1205 printf(") locals: %i + %i\n",
1214 for (i = 1; i < prog->functions.size(); ++i) {
1215 const char *name = prog_getstring(prog, prog->functions[i].name);
1216 if (!strcmp(name, "main"))
1217 fnmain = (qcint_t)i;
1221 prog_main_setparams(prog);
1222 prog_exec(prog, &prog->functions[fnmain], xflags, VM_JUMPS_DEFAULT);
1225 fprintf(stderr, "No main function found\n");
1232 static void prog_disasm_function(qc_program_t *prog, size_t id) {
1233 prog_section_function_t *fdef = &prog->functions[0] + id;
1234 prog_section_statement_t *st;
1236 if (fdef->entry < 0) {
1237 printf("FUNCTION \"%s\" = builtin #%i\n", prog_getstring(prog, fdef->name), (int)-fdef->entry);
1241 printf("FUNCTION \"%s\"\n", prog_getstring(prog, fdef->name));
1243 st = &prog->code[0] + fdef->entry;
1244 while (st->opcode != INSTR_DONE) {
1245 prog_print_statement(prog, st);
1249 #else /* !QCVM_LOOP */
1251 * Everything from here on is not including into the compilation of the
1252 * executor. This is simply code that is #included via #include __FILE__
1253 * see when QCVM_LOOP is defined, the rest of the code above do not get
1254 * re-included. So this really just acts like one large macro, but it
1255 * sort of isn't, which makes it nicer looking.
1258 #define OPA ( (qcany_t*) (&prog->globals[0] + st->o1.u1) )
1259 #define OPB ( (qcany_t*) (&prog->globals[0] + st->o2.u1) )
1260 #define OPC ( (qcany_t*) (&prog->globals[0] + st->o3.u1) )
1262 #define GLOBAL(x) ( (qcany_t*) (&prog->globals[0] + (x)) )
1264 /* to be consistent with current darkplaces behaviour */
1265 #if !defined(FLOAT_IS_TRUE_FOR_INT)
1266 # define FLOAT_IS_TRUE_FOR_INT(x) ( (x) & 0x7FFFFFFF )
1269 while (prog->vmerror == 0) {
1270 prog_section_function_t *newf;
1277 prog->profile[st - &prog->code[0]]++;
1281 prog_print_statement(prog, st);
1287 qcvmerror(prog, "Illegal instruction in %s\n", prog->filename.c_str());
1292 /* TODO: add instruction count to function profile count */
1293 GLOBAL(OFS_RETURN)->ivector[0] = OPA->ivector[0];
1294 GLOBAL(OFS_RETURN)->ivector[1] = OPA->ivector[1];
1295 GLOBAL(OFS_RETURN)->ivector[2] = OPA->ivector[2];
1297 st = &prog->code[0] + prog_leavefunction(prog);
1298 if (prog->stack.empty())
1304 OPC->_float = OPA->_float * OPB->_float;
1307 OPC->_float = OPA->vector[0]*OPB->vector[0] +
1308 OPA->vector[1]*OPB->vector[1] +
1309 OPA->vector[2]*OPB->vector[2];
1313 qcfloat_t f = OPA->_float;
1314 OPC->vector[0] = f * OPB->vector[0];
1315 OPC->vector[1] = f * OPB->vector[1];
1316 OPC->vector[2] = f * OPB->vector[2];
1321 qcfloat_t f = OPB->_float;
1322 OPC->vector[0] = f * OPA->vector[0];
1323 OPC->vector[1] = f * OPA->vector[1];
1324 OPC->vector[2] = f * OPA->vector[2];
1328 if (OPB->_float != 0.0f)
1329 OPC->_float = OPA->_float / OPB->_float;
1335 OPC->_float = OPA->_float + OPB->_float;
1338 OPC->vector[0] = OPA->vector[0] + OPB->vector[0];
1339 OPC->vector[1] = OPA->vector[1] + OPB->vector[1];
1340 OPC->vector[2] = OPA->vector[2] + OPB->vector[2];
1343 OPC->_float = OPA->_float - OPB->_float;
1346 OPC->vector[0] = OPA->vector[0] - OPB->vector[0];
1347 OPC->vector[1] = OPA->vector[1] - OPB->vector[1];
1348 OPC->vector[2] = OPA->vector[2] - OPB->vector[2];
1352 OPC->_float = (OPA->_float == OPB->_float);
1355 OPC->_float = ((OPA->vector[0] == OPB->vector[0]) &&
1356 (OPA->vector[1] == OPB->vector[1]) &&
1357 (OPA->vector[2] == OPB->vector[2]) );
1360 OPC->_float = !strcmp(prog_getstring(prog, OPA->string),
1361 prog_getstring(prog, OPB->string));
1364 OPC->_float = (OPA->_int == OPB->_int);
1367 OPC->_float = (OPA->function == OPB->function);
1370 OPC->_float = (OPA->_float != OPB->_float);
1373 OPC->_float = ((OPA->vector[0] != OPB->vector[0]) ||
1374 (OPA->vector[1] != OPB->vector[1]) ||
1375 (OPA->vector[2] != OPB->vector[2]) );
1378 OPC->_float = !!strcmp(prog_getstring(prog, OPA->string),
1379 prog_getstring(prog, OPB->string));
1382 OPC->_float = (OPA->_int != OPB->_int);
1385 OPC->_float = (OPA->function != OPB->function);
1389 OPC->_float = (OPA->_float <= OPB->_float);
1392 OPC->_float = (OPA->_float >= OPB->_float);
1395 OPC->_float = (OPA->_float < OPB->_float);
1398 OPC->_float = (OPA->_float > OPB->_float);
1403 case INSTR_LOAD_FLD:
1404 case INSTR_LOAD_ENT:
1405 case INSTR_LOAD_FNC:
1406 if (OPA->edict < 0 || OPA->edict >= prog->entities) {
1407 qcvmerror(prog, "progs `%s` attempted to read an out of bounds entity", prog->filename.c_str());
1410 if ((unsigned int)(OPB->_int) >= (unsigned int)(prog->entityfields)) {
1411 qcvmerror(prog, "prog `%s` attempted to read an invalid field from entity (%i)",
1412 prog->filename.c_str(),
1416 ed = prog_getedict(prog, OPA->edict);
1417 OPC->_int = ((qcany_t*)( ((qcint_t*)ed) + OPB->_int ))->_int;
1420 if (OPA->edict < 0 || OPA->edict >= prog->entities) {
1421 qcvmerror(prog, "progs `%s` attempted to read an out of bounds entity", prog->filename.c_str());
1424 if (OPB->_int < 0 || OPB->_int + 3 > (qcint_t)prog->entityfields)
1426 qcvmerror(prog, "prog `%s` attempted to read an invalid field from entity (%i)",
1427 prog->filename.c_str(),
1431 ed = prog_getedict(prog, OPA->edict);
1432 ptr = (qcany_t*)( ((qcint_t*)ed) + OPB->_int );
1433 OPC->ivector[0] = ptr->ivector[0];
1434 OPC->ivector[1] = ptr->ivector[1];
1435 OPC->ivector[2] = ptr->ivector[2];
1439 if (OPA->edict < 0 || OPA->edict >= prog->entities) {
1440 qcvmerror(prog, "prog `%s` attempted to address an out of bounds entity %i", prog->filename.c_str(), OPA->edict);
1443 if ((unsigned int)(OPB->_int) >= (unsigned int)(prog->entityfields))
1445 qcvmerror(prog, "prog `%s` attempted to read an invalid field from entity (%i)",
1446 prog->filename.c_str(),
1451 ed = prog_getedict(prog, OPA->edict);
1452 OPC->_int = ((qcint_t*)ed) - prog->entitydata.data() + OPB->_int;
1457 case INSTR_STORE_ENT:
1458 case INSTR_STORE_FLD:
1459 case INSTR_STORE_FNC:
1460 OPB->_int = OPA->_int;
1463 OPB->ivector[0] = OPA->ivector[0];
1464 OPB->ivector[1] = OPA->ivector[1];
1465 OPB->ivector[2] = OPA->ivector[2];
1468 case INSTR_STOREP_F:
1469 case INSTR_STOREP_S:
1470 case INSTR_STOREP_ENT:
1471 case INSTR_STOREP_FLD:
1472 case INSTR_STOREP_FNC:
1473 if (OPB->_int < 0 || OPB->_int >= (qcint_t)prog->entitydata.size()) {
1474 qcvmerror(prog, "`%s` attempted to write to an out of bounds edict (%i)", prog->filename.c_str(), OPB->_int);
1477 if (OPB->_int < (qcint_t)prog->entityfields && !prog->allowworldwrites)
1478 qcvmerror(prog, "`%s` tried to assign to world.%s (field %i)\n",
1479 prog->filename.c_str(),
1480 prog_getstring(prog, prog_entfield(prog, OPB->_int)->name),
1482 ptr = (qcany_t*)&prog->entitydata[OPB->_int];
1483 ptr->_int = OPA->_int;
1485 case INSTR_STOREP_V:
1486 if (OPB->_int < 0 || OPB->_int + 2 >= (qcint_t)prog->entitydata.size()) {
1487 qcvmerror(prog, "`%s` attempted to write to an out of bounds edict (%i)", prog->filename.c_str(), OPB->_int);
1490 if (OPB->_int < (qcint_t)prog->entityfields && !prog->allowworldwrites)
1491 qcvmerror(prog, "`%s` tried to assign to world.%s (field %i)\n",
1492 prog->filename.c_str(),
1493 prog_getstring(prog, prog_entfield(prog, OPB->_int)->name),
1495 ptr = (qcany_t*)&prog->entitydata[OPB->_int];
1496 ptr->ivector[0] = OPA->ivector[0];
1497 ptr->ivector[1] = OPA->ivector[1];
1498 ptr->ivector[2] = OPA->ivector[2];
1502 OPC->_float = !FLOAT_IS_TRUE_FOR_INT(OPA->_int);
1505 OPC->_float = !OPA->vector[0] &&
1510 OPC->_float = !OPA->string ||
1511 !*prog_getstring(prog, OPA->string);
1514 OPC->_float = (OPA->edict == 0);
1517 OPC->_float = !OPA->function;
1521 /* this is consistent with darkplaces' behaviour */
1522 if(FLOAT_IS_TRUE_FOR_INT(OPA->_int))
1524 st += st->o2.s1 - 1; /* offset the s++ */
1525 if (++jumpcount >= maxjumps)
1526 qcvmerror(prog, "`%s` hit the runaway loop counter limit of %li jumps", prog->filename.c_str(), jumpcount);
1530 if(!FLOAT_IS_TRUE_FOR_INT(OPA->_int))
1532 st += st->o2.s1 - 1; /* offset the s++ */
1533 if (++jumpcount >= maxjumps)
1534 qcvmerror(prog, "`%s` hit the runaway loop counter limit of %li jumps", prog->filename.c_str(), jumpcount);
1547 prog->argc = st->opcode - INSTR_CALL0;
1549 qcvmerror(prog, "nullptr function in `%s`", prog->filename.c_str());
1551 if(!OPA->function || OPA->function >= (qcint_t)prog->functions.size())
1553 qcvmerror(prog, "CALL outside the program in `%s`", prog->filename.c_str());
1557 newf = &prog->functions[OPA->function];
1560 prog->statement = (st - &prog->code[0]) + 1;
1562 if (newf->entry < 0)
1564 /* negative statements are built in functions */
1565 qcint_t builtinnumber = -newf->entry;
1566 if (builtinnumber < (qcint_t)prog->builtins_count && prog->builtins[builtinnumber])
1567 prog->builtins[builtinnumber](prog);
1569 qcvmerror(prog, "No such builtin #%i in %s! Try updating your gmqcc sources",
1570 builtinnumber, prog->filename.c_str());
1573 st = &prog->code[0] + prog_enterfunction(prog, newf) - 1; /* offset st++ */
1580 qcfloat_t *nextthink;
1583 if (!prog->supports_state) {
1584 qcvmerror(prog, "`%s` tried to execute a STATE operation but misses its defs!", prog->filename.c_str());
1587 ed = prog_getedict(prog, prog->globals[prog->cached_globals.self]);
1588 ((qcint_t*)ed)[prog->cached_fields.think] = OPB->function;
1590 frame = (qcfloat_t*)&((qcint_t*)ed)[prog->cached_fields.frame];
1591 *frame = OPA->_float;
1592 nextthink = (qcfloat_t*)&((qcint_t*)ed)[prog->cached_fields.nextthink];
1593 time = (qcfloat_t*)(&prog->globals[0] + prog->cached_globals.time);
1594 *nextthink = *time + 0.1;
1599 st += st->o1.s1 - 1; /* offset the s++ */
1600 if (++jumpcount == 10000000)
1601 qcvmerror(prog, "`%s` hit the runaway loop counter limit of %li jumps", prog->filename.c_str(), jumpcount);
1605 OPC->_float = FLOAT_IS_TRUE_FOR_INT(OPA->_int) &&
1606 FLOAT_IS_TRUE_FOR_INT(OPB->_int);
1609 OPC->_float = FLOAT_IS_TRUE_FOR_INT(OPA->_int) ||
1610 FLOAT_IS_TRUE_FOR_INT(OPB->_int);
1614 OPC->_float = ((int)OPA->_float) & ((int)OPB->_float);
1617 OPC->_float = ((int)OPA->_float) | ((int)OPB->_float);
1624 #endif /* !QCVM_LOOP */