8 MEM_VEC_FUNCTIONS(qc_program, prog_section_statement, code)
9 MEM_VEC_FUNCTIONS(qc_program, prog_section_def, defs)
10 MEM_VEC_FUNCTIONS(qc_program, prog_section_def, fields)
11 MEM_VEC_FUNCTIONS(qc_program, prog_section_function, functions)
12 MEM_VEC_FUNCTIONS(qc_program, char, strings)
13 MEM_VEC_FUN_APPEND(qc_program, char, strings)
14 MEM_VEC_FUN_RESIZE(qc_program, char, strings)
15 MEM_VEC_FUNCTIONS(qc_program, qcint, globals)
16 MEM_VEC_FUNCTIONS(qc_program, qcint, entitydata)
17 MEM_VEC_FUNCTIONS(qc_program, bool, entitypool)
19 MEM_VEC_FUNCTIONS(qc_program, qcint, localstack)
20 MEM_VEC_FUN_APPEND(qc_program, qcint, localstack)
21 MEM_VEC_FUN_RESIZE(qc_program, qcint, localstack)
22 MEM_VEC_FUNCTIONS(qc_program, qc_exec_stack, stack)
24 MEM_VEC_FUNCTIONS(qc_program, size_t, profile)
25 MEM_VEC_FUN_RESIZE(qc_program, size_t, profile)
27 MEM_VEC_FUNCTIONS(qc_program, prog_builtin, builtins)
29 static void loaderror(const char *fmt, ...)
36 printf(": %s\n", strerror(err));
39 static void qcvmerror(qc_program *prog, const char *fmt, ...)
51 qc_program* prog_load(const char *filename)
58 file = util_fopen(filename, "rb");
62 if (fread(&header, sizeof(header), 1, file) != 1) {
63 loaderror("failed to read header from '%s'", filename);
68 if (header.version != 6) {
69 loaderror("header says this is a version %i progs, we need version 6\n", header.version);
74 prog = (qc_program*)mem_a(sizeof(qc_program));
77 printf("failed to allocate program data\n");
80 memset(prog, 0, sizeof(*prog));
82 prog->entityfields = header.entfield;
84 prog->filename = util_strdup(filename);
85 if (!prog->filename) {
86 loaderror("failed to store program name");
90 #define read_data(hdrvar, progvar, type) \
91 if (fseek(file, header.hdrvar.offset, SEEK_SET) != 0) { \
92 loaderror("seek failed"); \
95 prog->progvar##_alloc = header.hdrvar.length; \
96 prog->progvar##_count = header.hdrvar.length; \
97 prog->progvar = (type*)mem_a(header.hdrvar.length * sizeof(*prog->progvar)); \
100 if (fread(prog->progvar, sizeof(*prog->progvar), header.hdrvar.length, file) \
101 != header.hdrvar.length) { \
102 loaderror("read failed"); \
105 #define read_data1(x, y) read_data(x, x, y)
107 read_data (statements, code, prog_section_statement);
108 read_data1(defs, prog_section_def);
109 read_data1(fields, prog_section_def);
110 read_data1(functions, prog_section_function);
111 read_data1(strings, char);
112 read_data1(globals, qcint);
116 /* profile counters */
117 if (!qc_program_profile_resize(prog, prog->code_count))
120 /* Add tempstring area */
121 prog->tempstring_start = prog->strings_count;
122 prog->tempstring_at = prog->strings_count;
123 if (!qc_program_strings_resize(prog, prog->strings_count + 16*1024))
126 /* spawn the world entity */
127 if (!qc_program_entitypool_add(prog, true)) {
128 loaderror("failed to allocate world entity\n");
131 for (i = 0; i < prog->entityfields; ++i) {
132 if (!qc_program_entitydata_add(prog, 0)) {
133 loaderror("failed to allocate world data\n");
142 if (prog->filename) mem_d(prog->filename);
143 if (prog->code) mem_d(prog->code);
144 if (prog->defs) mem_d(prog->defs);
145 if (prog->fields) mem_d(prog->fields);
146 if (prog->functions) mem_d(prog->functions);
147 if (prog->strings) mem_d(prog->strings);
148 if (prog->globals) mem_d(prog->globals);
149 if (prog->entitydata) mem_d(prog->entitydata);
150 if (prog->entitypool) mem_d(prog->entitypool);
155 void prog_delete(qc_program *prog)
157 if (prog->filename) mem_d(prog->filename);
158 MEM_VECTOR_CLEAR(prog, code);
159 MEM_VECTOR_CLEAR(prog, defs);
160 MEM_VECTOR_CLEAR(prog, fields);
161 MEM_VECTOR_CLEAR(prog, functions);
162 MEM_VECTOR_CLEAR(prog, strings);
163 MEM_VECTOR_CLEAR(prog, globals);
164 MEM_VECTOR_CLEAR(prog, entitydata);
165 MEM_VECTOR_CLEAR(prog, entitypool);
166 MEM_VECTOR_CLEAR(prog, localstack);
167 MEM_VECTOR_CLEAR(prog, stack);
168 MEM_VECTOR_CLEAR(prog, profile);
170 if (prog->builtins_alloc) {
171 MEM_VECTOR_CLEAR(prog, builtins);
173 /* otherwise the builtins were statically allocated */
177 /***********************************************************************
181 char* prog_getstring(qc_program *prog, qcint str)
183 if (str < 0 || str >= prog->strings_count)
184 return "<<<invalid string>>>";
185 return prog->strings + str;
188 prog_section_def* prog_entfield(qc_program *prog, qcint off)
191 for (i = 0; i < prog->fields_count; ++i) {
192 if (prog->fields[i].offset == off)
193 return (prog->fields + i);
198 prog_section_def* prog_getdef(qc_program *prog, qcint off)
201 for (i = 0; i < prog->defs_count; ++i) {
202 if (prog->defs[i].offset == off)
203 return (prog->defs + i);
208 qcany* prog_getedict(qc_program *prog, qcint e)
210 if (e >= prog->entitypool_count) {
212 printf("Accessing out of bounds edict %i\n", (int)e);
215 return (qcany*)(prog->entitydata + (prog->entityfields * e));
218 qcint prog_spawn_entity(qc_program *prog)
222 for (e = 0; e < (qcint)prog->entitypool_count; ++e) {
223 if (!prog->entitypool[e]) {
224 char *data = (char*)(prog->entitydata + (prog->entityfields * e));
225 memset(data, 0, prog->entityfields * sizeof(qcint));
229 if (!qc_program_entitypool_add(prog, true)) {
231 printf("Failed to allocate entity\n");
235 for (i = 0; i < prog->entityfields; ++i) {
236 if (!qc_program_entitydata_add(prog, 0)) {
237 printf("Failed to allocate entity\n");
244 void prog_free_entity(qc_program *prog, qcint e)
248 printf("Trying to free world entity\n");
251 if (e >= prog->entitypool_count) {
253 printf("Trying to free out of bounds entity\n");
256 if (!prog->entitypool[e]) {
258 printf("Double free on entity\n");
261 prog->entitypool[e] = false;
264 qcint prog_tempstring(qc_program *prog, const char *_str)
266 /* we don't access it, but the macro-generated functions don't use
269 char *str = (char*)_str;
271 size_t len = strlen(str);
272 size_t at = prog->tempstring_at;
274 /* when we reach the end we start over */
275 if (at + len >= prog->strings_count)
276 at = prog->tempstring_start;
278 /* when it doesn't fit, reallocate */
279 if (at + len >= prog->strings_count)
281 prog->strings_count = at;
282 if (!qc_program_strings_append(prog, str, len+1)) {
283 prog->vmerror = VMERR_TEMPSTRING_ALLOC;
289 /* when it fits, just copy */
290 memcpy(prog->strings + at, str, len+1);
291 prog->tempstring_at += len+1;
295 static int print_escaped_string(const char *str)
301 case '\a': len += 2; putchar('\\'); putchar('a'); break;
302 case '\b': len += 2; putchar('\\'); putchar('b'); break;
303 case '\r': len += 2; putchar('\\'); putchar('r'); break;
304 case '\n': len += 2; putchar('\\'); putchar('n'); break;
305 case '\t': len += 2; putchar('\\'); putchar('t'); break;
306 case '\f': len += 2; putchar('\\'); putchar('f'); break;
307 case '\v': len += 2; putchar('\\'); putchar('v'); break;
308 case '\\': len += 2; putchar('\\'); putchar('\\'); break;
309 case '"': len += 2; putchar('\\'); putchar('"'); break;
321 static void trace_print_global(qc_program *prog, unsigned int glob, int vtype)
323 static char spaces[40+1] = " ";
324 prog_section_def *def;
329 len = printf("<null>,");
333 def = prog_getdef(prog, glob);
334 value = (qcany*)(&prog->globals[glob]);
337 len = printf("[%s] ", prog_getstring(prog, def->name));
341 len = printf("[@%u] ", glob);
349 len += printf("%i,", value->_int);
352 len += printf("'%g %g %g',", value->vector[0],
357 len += print_escaped_string(prog_getstring(prog, value->string));
359 /* len += printf("\"%s\",", prog_getstring(prog, value->string)); */
363 len += printf("%g,", value->_float);
367 if (len < sizeof(spaces)-1) {
368 spaces[sizeof(spaces)-1-len] = 0;
370 spaces[sizeof(spaces)-1-len] = ' ';
374 static void prog_print_statement(qc_program *prog, prog_section_statement *st)
376 if (st->opcode >= (sizeof(asm_instr)/sizeof(asm_instr[0]))) {
377 printf("<illegal instruction %d>\n", st->opcode);
380 printf(" <> %-12s", asm_instr[st->opcode].m);
381 if (st->opcode >= INSTR_IF &&
382 st->opcode <= INSTR_IFNOT)
384 trace_print_global(prog, st->o1.u1, TYPE_FLOAT);
385 printf("%d\n", st->o2.s1);
387 else if (st->opcode >= INSTR_CALL0 &&
388 st->opcode <= INSTR_CALL8)
392 else if (st->opcode == INSTR_GOTO)
394 printf("%i\n", st->o1.s1);
398 int t[3] = { TYPE_FLOAT, TYPE_FLOAT, TYPE_FLOAT };
402 t[1] = t[2] = TYPE_VECTOR;
405 t[0] = t[2] = TYPE_VECTOR;
408 t[0] = t[1] = TYPE_VECTOR;
414 t[0] = t[1] = t[2] = TYPE_VECTOR;
418 t[0] = t[1] = TYPE_STRING;
425 t[0] = t[1] = TYPE_VECTOR; t[2] = -1;
428 t[0] = t[1] = TYPE_STRING; t[2] = -1;
430 case INSTR_STORE_ENT:
431 t[0] = t[1] = TYPE_ENTITY; t[2] = -1;
433 case INSTR_STORE_FLD:
434 t[0] = t[1] = TYPE_FIELD; t[2] = -1;
436 case INSTR_STORE_FNC:
437 t[0] = t[1] = TYPE_FUNCTION; t[2] = -1;
440 t[0] = TYPE_VECTOR; t[1] = TYPE_ENTITY; t[2] = -1;
443 t[0] = TYPE_STRING; t[1] = TYPE_ENTITY; t[2] = -1;
445 case INSTR_STOREP_ENT:
446 t[0] = TYPE_ENTITY; t[1] = TYPE_ENTITY; t[2] = -1;
448 case INSTR_STOREP_FLD:
449 t[0] = TYPE_FIELD; t[1] = TYPE_ENTITY; t[2] = -1;
451 case INSTR_STOREP_FNC:
452 t[0] = TYPE_FUNCTION; t[1] = TYPE_ENTITY; t[2] = -1;
455 if (t[0] >= 0) trace_print_global(prog, st->o1.u1, t[0]);
456 else printf("(none), ");
457 if (t[1] >= 0) trace_print_global(prog, st->o2.u1, t[1]);
458 else printf("(none), ");
459 if (t[2] >= 0) trace_print_global(prog, st->o3.u1, t[2]);
460 else printf("(none)");
466 static qcint prog_enterfunction(qc_program *prog, prog_section_function *func)
472 st.localsp = prog->localstack_count;
473 st.stmt = prog->statement;
476 #ifdef QCVM_BACKUP_STRATEGY_CALLER_VARS
477 if (prog->stack_count)
479 prog_section_function *cur;
480 cur = prog->stack[prog->stack_count-1].function;
483 qcint *globals = prog->globals + cur->firstlocal;
484 if (!qc_program_localstack_append(prog, globals, cur->locals))
486 printf("out of memory\n");
493 qcint *globals = prog->globals + func->firstlocal;
494 if (!qc_program_localstack_append(prog, globals, func->locals))
496 printf("out of memory\n");
502 /* copy parameters */
503 parampos = func->firstlocal;
504 for (p = 0; p < func->nargs; ++p)
507 for (s = 0; s < func->argsize[p]; ++s) {
508 prog->globals[parampos] = prog->globals[OFS_PARM0 + 3*p + s];
513 if (!qc_program_stack_add(prog, st)) {
514 printf("out of memory\n");
521 static qcint prog_leavefunction(qc_program *prog)
523 prog_section_function *prev = NULL;
526 qc_exec_stack st = prog->stack[prog->stack_count-1];
528 #ifdef QCVM_BACKUP_STRATEGY_CALLER_VARS
529 if (prog->stack_count > 1) {
530 prev = prog->stack[prog->stack_count-2].function;
531 oldsp = prog->stack[prog->stack_count-2].localsp;
534 prev = prog->stack[prog->stack_count-1].function;
535 oldsp = prog->stack[prog->stack_count-1].localsp;
538 qcint *globals = prog->globals + prev->firstlocal;
539 memcpy(globals, prog->localstack + oldsp, prev->locals);
540 if (!qc_program_localstack_resize(prog, oldsp)) {
541 printf("out of memory\n");
546 if (!qc_program_stack_remove(prog, prog->stack_count-1)) {
547 printf("out of memory\n");
551 return st.stmt - 1; /* offset the ++st */
554 bool prog_exec(qc_program *prog, prog_section_function *func, size_t flags, long maxjumps)
557 prog_section_statement *st;
561 st = prog->code + prog_enterfunction(prog, func);
568 #define QCVM_PROFILE 0
570 # include "execloop.h"
575 #define QCVM_PROFILE 0
577 # include "execloop.h"
582 #define QCVM_PROFILE 1
584 # include "execloop.h"
587 case (VMXF_TRACE|VMXF_PROFILE):
589 #define QCVM_PROFILE 1
591 # include "execloop.h"
597 prog->localstack_count = 0;
598 prog->stack_count = 0;
604 /***********************************************************************
605 * main for when building the standalone executor
608 #if defined(QCVM_EXECUTOR)
609 bool opts_debug = false;
610 bool opts_memchk = false;
612 #define CheckArgs(num) do { \
613 if (prog->argc != (num)) { \
615 printf("ERROR: invalid number of arguments for %s: %i, expected %i\n", \
616 __FUNCTION__, prog->argc, (num)); \
621 #define GetGlobal(idx) ((qcany*)(prog->globals + (idx)))
622 #define GetArg(num) GetGlobal(OFS_PARM0 + 3*(num))
623 #define Return(any) *(GetGlobal(OFS_RETURN)) = (any)
625 static int qc_print(qc_program *prog)
628 for (i = 0; i < prog->argc; ++i) {
629 qcany *str = (qcany*)(prog->globals + OFS_PARM0 + 3*i);
630 printf("%s", prog_getstring(prog, str->string));
635 static int qc_ftos(qc_program *prog)
642 snprintf(buffer, sizeof(buffer), "%g", num->_float);
643 str.string = prog_tempstring(prog, buffer);
648 static int qc_spawn(qc_program *prog)
652 ent.edict = prog_spawn_entity(prog);
654 return (ent.edict ? 0 : -1);
657 static int qc_kill(qc_program *prog)
662 prog_free_entity(prog, ent->edict);
666 static prog_builtin qc_builtins[] = {
673 static size_t qc_builtins_count = sizeof(qc_builtins) / sizeof(qc_builtins[0]);
675 static const char *arg0 = NULL;
679 printf("usage: [-debug] %s file\n", arg0);
683 int main(int argc, char **argv)
688 size_t xflags = VMXF_DEFAULT;
696 if (!strcmp(argv[1], "-trace")) {
699 xflags |= VMXF_TRACE;
701 else if (!strcmp(argv[1], "-profile")) {
704 xflags |= VMXF_PROFILE;
711 prog = prog_load(argv[1]);
713 printf("failed to load program '%s'\n", argv[1]);
717 prog->builtins = qc_builtins;
718 prog->builtins_count = qc_builtins_count;
719 prog->builtins_alloc = 0;
721 for (i = 1; i < prog->functions_count; ++i) {
722 const char *name = prog_getstring(prog, prog->functions[i].name);
723 /* printf("Found function: %s\n", name); */
724 if (!strcmp(name, "main"))
727 printf("Entity field space: %i\n", (int)prog->entityfields);
730 prog_exec(prog, &prog->functions[fnmain], xflags, VM_JUMPS_DEFAULT);
733 printf("No main function found\n");