7 MEM_VEC_FUNCTIONS(qc_program, prog_section_statement, code)
8 MEM_VEC_FUNCTIONS(qc_program, prog_section_def, defs)
9 MEM_VEC_FUNCTIONS(qc_program, prog_section_def, fields)
10 MEM_VEC_FUNCTIONS(qc_program, prog_section_function, functions)
11 MEM_VEC_FUNCTIONS(qc_program, char, strings)
12 MEM_VEC_FUN_APPEND(qc_program, char, strings)
13 MEM_VEC_FUN_RESIZE(qc_program, char, strings)
14 MEM_VEC_FUNCTIONS(qc_program, qcint, globals)
15 MEM_VEC_FUNCTIONS(qc_program, qcint, entitydata)
16 MEM_VEC_FUNCTIONS(qc_program, bool, entitypool)
18 MEM_VEC_FUNCTIONS(qc_program, qcint, localstack)
19 MEM_VEC_FUN_APPEND(qc_program, qcint, localstack)
20 MEM_VEC_FUN_RESIZE(qc_program, qcint, localstack)
21 MEM_VEC_FUNCTIONS(qc_program, qc_exec_stack, stack)
23 MEM_VEC_FUNCTIONS(qc_program, size_t, profile)
24 MEM_VEC_FUN_RESIZE(qc_program, size_t, profile)
26 MEM_VEC_FUNCTIONS(qc_program, prog_builtin, builtins)
28 static void loaderror(const char *fmt, ...)
35 printf(": %s\n", strerror(err));
38 static void printvmerr(const char *fmt, ...)
47 qc_program* prog_load(const char *filename)
54 file = fopen(filename, "rb");
58 if (fread(&header, sizeof(header), 1, file) != 1) {
59 loaderror("failed to read header from '%s'", filename);
64 if (header.version != 6) {
65 loaderror("header says this is a version %i progs, we need version 6\n", header.version);
70 prog = (qc_program*)mem_a(sizeof(qc_program));
73 printf("failed to allocate program data\n");
76 memset(prog, 0, sizeof(*prog));
78 prog->entityfields = header.entfield;
80 prog->filename = util_strdup(filename);
81 if (!prog->filename) {
82 loaderror("failed to store program name");
86 #define read_data(hdrvar, progvar, type) \
87 if (fseek(file, header.hdrvar.offset, SEEK_SET) != 0) { \
88 loaderror("seek failed"); \
91 prog->progvar##_alloc = header.hdrvar.length; \
92 prog->progvar##_count = header.hdrvar.length; \
93 prog->progvar = (type*)mem_a(header.hdrvar.length * sizeof(*prog->progvar)); \
96 if (fread(prog->progvar, sizeof(*prog->progvar), header.hdrvar.length, file) \
97 != header.hdrvar.length) { \
98 loaderror("read failed"); \
101 #define read_data1(x, y) read_data(x, x, y)
103 read_data (statements, code, prog_section_statement);
104 read_data1(defs, prog_section_def);
105 read_data1(fields, prog_section_def);
106 read_data1(functions, prog_section_function);
107 read_data1(strings, char);
108 read_data1(globals, qcint);
112 /* profile counters */
113 if (!qc_program_profile_resize(prog, prog->code_count))
116 /* Add tempstring area */
117 prog->tempstring_start = prog->strings_count;
118 prog->tempstring_at = prog->strings_count;
119 if (!qc_program_strings_resize(prog, prog->strings_count + 16*1024))
122 /* spawn the world entity */
123 if (!qc_program_entitypool_add(prog, true)) {
124 loaderror("failed to allocate world entity\n");
127 for (i = 0; i < prog->entityfields; ++i) {
128 if (!qc_program_entitydata_add(prog, 0)) {
129 loaderror("failed to allocate world data\n");
138 if (prog->filename) mem_d(prog->filename);
139 if (prog->code) mem_d(prog->code);
140 if (prog->defs) mem_d(prog->defs);
141 if (prog->fields) mem_d(prog->fields);
142 if (prog->functions) mem_d(prog->functions);
143 if (prog->strings) mem_d(prog->strings);
144 if (prog->globals) mem_d(prog->globals);
145 if (prog->entitydata) mem_d(prog->entitydata);
146 if (prog->entitypool) mem_d(prog->entitypool);
151 void prog_delete(qc_program *prog)
153 if (prog->filename) mem_d(prog->filename);
154 MEM_VECTOR_CLEAR(prog, code);
155 MEM_VECTOR_CLEAR(prog, defs);
156 MEM_VECTOR_CLEAR(prog, fields);
157 MEM_VECTOR_CLEAR(prog, functions);
158 MEM_VECTOR_CLEAR(prog, strings);
159 MEM_VECTOR_CLEAR(prog, globals);
160 MEM_VECTOR_CLEAR(prog, entitydata);
161 MEM_VECTOR_CLEAR(prog, entitypool);
162 MEM_VECTOR_CLEAR(prog, localstack);
163 MEM_VECTOR_CLEAR(prog, stack);
164 MEM_VECTOR_CLEAR(prog, profile);
166 if (prog->builtins_alloc) {
167 MEM_VECTOR_CLEAR(prog, builtins);
169 /* otherwise the builtins were statically allocated */
173 /***********************************************************************
177 char* prog_getstring(qc_program *prog, qcint str)
179 if (str < 0 || str >= prog->strings_count)
180 return "<<<invalid string>>>";
181 return prog->strings + str;
184 prog_section_def* prog_entfield(qc_program *prog, qcint off)
187 for (i = 0; i < prog->fields_count; ++i) {
188 if (prog->fields[i].offset == off)
189 return (prog->fields + i);
194 prog_section_def* prog_getdef(qc_program *prog, qcint off)
197 for (i = 0; i < prog->defs_count; ++i) {
198 if (prog->defs[i].offset == off)
199 return (prog->defs + i);
204 qcany* prog_getedict(qc_program *prog, qcint e)
206 if (e >= prog->entitypool_count) {
208 printf("Accessing out of bounds edict %i\n", (int)e);
211 return (qcany*)(prog->entitydata + (prog->entityfields * e));
214 qcint prog_spawn_entity(qc_program *prog)
218 for (e = 0; e < (qcint)prog->entitypool_count; ++e) {
219 if (!prog->entitypool[e]) {
220 char *data = (char*)(prog->entitydata + (prog->entityfields * e));
221 memset(data, 0, prog->entityfields * sizeof(qcint));
225 if (!qc_program_entitypool_add(prog, true)) {
227 printf("Failed to allocate entity\n");
231 for (i = 0; i < prog->entityfields; ++i) {
232 if (!qc_program_entitydata_add(prog, 0)) {
233 printf("Failed to allocate entity\n");
240 void prog_free_entity(qc_program *prog, qcint e)
244 printf("Trying to free world entity\n");
247 if (e >= prog->entitypool_count) {
249 printf("Trying to free out of bounds entity\n");
252 if (!prog->entitypool[e]) {
254 printf("Double free on entity\n");
257 prog->entitypool[e] = false;
260 qcint prog_tempstring(qc_program *prog, const char *_str)
262 /* we don't access it, but the macro-generated functions don't use
265 char *str = (char*)_str;
267 size_t len = strlen(str);
268 size_t at = prog->tempstring_at;
270 /* when we reach the end we start over */
271 if (at + len >= prog->strings_count)
272 at = prog->tempstring_start;
274 /* when it doesn't fit, reallocate */
275 if (at + len >= prog->strings_count)
277 prog->strings_count = at;
278 if (!qc_program_strings_append(prog, str, len+1)) {
279 prog->vmerror = VMERR_TEMPSTRING_ALLOC;
285 /* when it fits, just copy */
286 memcpy(prog->strings + at, str, len+1);
287 prog->tempstring_at += len+1;
291 static int print_escaped_string(const char *str)
297 case '\a': len += 2; putchar('\\'); putchar('a'); break;
298 case '\b': len += 2; putchar('\\'); putchar('b'); break;
299 case '\r': len += 2; putchar('\\'); putchar('r'); break;
300 case '\n': len += 2; putchar('\\'); putchar('n'); break;
301 case '\t': len += 2; putchar('\\'); putchar('t'); break;
302 case '\f': len += 2; putchar('\\'); putchar('f'); break;
303 case '\v': len += 2; putchar('\\'); putchar('v'); break;
304 case '\\': len += 2; putchar('\\'); putchar('\\'); break;
305 case '"': len += 2; putchar('\\'); putchar('"'); break;
317 static void trace_print_global(qc_program *prog, unsigned int glob, int vtype)
319 static char spaces[16+1] = " ";
320 prog_section_def *def;
327 def = prog_getdef(prog, glob);
328 value = (qcany*)(&prog->globals[glob]);
331 len = printf("[%s] ", prog_getstring(prog, def->name));
335 len = printf("[@%u] ", glob);
343 len += printf("%i,", value->_int);
346 len += printf("'%g %g %g',", value->vector[0],
351 len += print_escaped_string(prog_getstring(prog, value->string));
352 /* len += printf("\"%s\",", prog_getstring(prog, value->string)); */
356 len += printf("%g,", value->_float);
362 spaces[16-len] = ' ';
366 static void prog_print_statement(qc_program *prog, prog_section_statement *st)
368 if (st->opcode >= (sizeof(asm_instr)/sizeof(asm_instr[0]))) {
369 printf("<illegal instruction %d>\n", st->opcode);
372 printf(" <> %-12s", asm_instr[st->opcode].m);
373 if (st->opcode >= INSTR_IF &&
374 st->opcode <= INSTR_IFNOT)
376 trace_print_global(prog, st->o1.u1, TYPE_FLOAT);
377 printf("%d\n", st->o2.s1);
379 else if (st->opcode >= INSTR_CALL0 &&
380 st->opcode <= INSTR_CALL8)
384 else if (st->opcode == INSTR_GOTO)
386 printf("%i\n", st->o1.s1);
390 int t[3] = { TYPE_FLOAT, TYPE_FLOAT, TYPE_FLOAT };
394 t[1] = t[2] = TYPE_VECTOR;
397 t[0] = t[2] = TYPE_VECTOR;
400 t[0] = t[1] = TYPE_VECTOR;
406 t[0] = t[1] = t[2] = TYPE_VECTOR;
410 t[0] = t[1] = TYPE_STRING;
413 t[0] = t[1] = TYPE_VECTOR; t[2] = -1;
416 t[0] = t[1] = TYPE_STRING; t[2] = -1;
419 if (t[0] >= 0) trace_print_global(prog, st->o1.u1, t[0]);
420 if (t[1] >= 0) trace_print_global(prog, st->o2.u1, t[1]);
421 if (t[2] >= 0) trace_print_global(prog, st->o3.u1, t[2]);
426 static qcint prog_enterfunction(qc_program *prog, prog_section_function *func)
432 st.localsp = prog->localstack_count;
433 st.stmt = prog->statement;
436 #ifdef QCVM_BACKUP_STRATEGY_CALLER_VARS
437 if (prog->stack_count)
439 prog_section_function *cur;
440 cur = prog->stack[prog->stack_count-1].function;
443 qcint *globals = prog->globals + cur->firstlocal;
444 if (!qc_program_localstack_append(prog, globals, cur->locals))
446 printf("out of memory\n");
453 qcint *globals = prog->globals + func->firstlocal;
454 if (!qc_program_localstack_append(prog, globals, func->locals))
456 printf("out of memory\n");
462 /* copy parameters */
463 parampos = func->firstlocal;
464 for (p = 0; p < func->nargs; ++p)
467 for (s = 0; s < func->argsize[p]; ++s) {
468 prog->globals[parampos] = prog->globals[OFS_PARM0 + 3*p + s];
473 if (!qc_program_stack_add(prog, st)) {
474 printf("out of memory\n");
481 static qcint prog_leavefunction(qc_program *prog)
483 prog_section_function *prev = NULL;
486 qc_exec_stack st = prog->stack[prog->stack_count-1];
488 #ifdef QCVM_BACKUP_STRATEGY_CALLER_VARS
489 if (prog->stack_count > 1) {
490 prev = prog->stack[prog->stack_count-2].function;
491 oldsp = prog->stack[prog->stack_count-2].localsp;
494 prev = prog->stack[prog->stack_count-1].function;
495 oldsp = prog->stack[prog->stack_count-1].localsp;
498 qcint *globals = prog->globals + prev->firstlocal;
499 memcpy(globals, prog->localstack + oldsp, prev->locals);
500 if (!qc_program_localstack_resize(prog, oldsp)) {
501 printf("out of memory\n");
506 if (!qc_program_stack_remove(prog, prog->stack_count-1)) {
507 printf("out of memory\n");
514 bool prog_exec(qc_program *prog, prog_section_function *func, size_t flags, long maxjumps)
517 prog_section_statement *st;
521 st = prog->code + prog_enterfunction(prog, func);
528 #define QCVM_PROFILE 0
530 # include "execloop.h"
535 #define QCVM_PROFILE 0
537 # include "execloop.h"
542 #define QCVM_PROFILE 1
544 # include "execloop.h"
547 case (VMXF_TRACE|VMXF_PROFILE):
549 #define QCVM_PROFILE 1
551 # include "execloop.h"
557 prog->localstack_count = 0;
558 prog->stack_count = 0;
564 /***********************************************************************
565 * main for when building the standalone executor
568 #if defined(QCVM_EXECUTOR)
569 bool opts_debug = false;
570 bool opts_memchk = false;
572 #define CheckArgs(num) do { \
573 if (prog->argc != (num)) { \
575 printf("ERROR: invalid number of arguments for %s: %i, expected %i\n", \
576 __FUNCTION__, prog->argc, (num)); \
581 #define GetGlobal(idx) ((qcany*)(prog->globals + (idx)))
582 #define GetArg(num) GetGlobal(OFS_PARM0 + 3*(num))
583 #define Return(any) *(GetGlobal(OFS_RETURN)) = (any)
585 static int qc_print(qc_program *prog)
588 for (i = 0; i < prog->argc; ++i) {
589 qcany *str = (qcany*)(prog->globals + OFS_PARM0 + 3*i);
590 printf("%s", prog_getstring(prog, str->string));
595 static int qc_ftos(qc_program *prog)
602 snprintf(buffer, sizeof(buffer), "%g", num->_float);
603 str.string = prog_tempstring(prog, buffer);
608 static int qc_spawn(qc_program *prog)
612 ent.edict = prog_spawn_entity(prog);
614 return (ent.edict ? 0 : -1);
617 static int qc_kill(qc_program *prog)
622 prog_free_entity(prog, ent->edict);
626 static prog_builtin qc_builtins[] = {
633 static size_t qc_builtins_count = sizeof(qc_builtins) / sizeof(qc_builtins[0]);
635 int main(int argc, char **argv)
642 printf("usage: %s file\n", argv[0]);
646 prog = prog_load(argv[1]);
648 printf("failed to load program '%s'\n", argv[1]);
652 prog->builtins = qc_builtins;
653 prog->builtins_count = qc_builtins_count;
654 prog->builtins_alloc = 0;
656 for (i = 1; i < prog->functions_count; ++i) {
657 const char *name = prog_getstring(prog, prog->functions[i].name);
658 printf("Found function: %s\n", name);
659 if (!strcmp(name, "main"))
662 printf("Entity field space: %i\n", (int)prog->entityfields);
665 prog_exec(prog, &prog->functions[fnmain], VMXF_TRACE, VM_JUMPS_DEFAULT);
668 printf("No main function found\n");