5 /* darkplaces has (or will have) a 64 bit prog loader
6 * where the 32 bit qc program is autoconverted on load.
7 * Since we may want to support that as well, let's redefine
10 typedef float qcfloat;
11 typedef int32_t qcint;
23 typedef char qcfloat_size_is_correct [sizeof(qcfloat) == 4 ?1:-1];
24 typedef char qcint_size_is_correct [sizeof(int) == 4 ?1:-1];
36 prog_section statements;
39 prog_section functions;
45 typedef prog_section_both prog_def;
46 typedef prog_section_function prog_function;
47 typedef prog_section_statement prog_statement;
51 VMERR_TEMPSTRING_ALLOC,
56 #define JUMPS_DEFAULT 1000000
58 #define VMXF_DEFAULT 0x0000
59 #define VMXF_TRACE 0x0001
60 #define VMXF_PROFILE 0x0002
64 typedef int (*prog_builtin)(struct qc_program_s *prog);
69 prog_function *function;
72 typedef struct qc_program_s {
75 MEM_VECTOR_MAKE(prog_statement, code);
76 MEM_VECTOR_MAKE(prog_def, defs);
77 MEM_VECTOR_MAKE(prog_def, fields);
78 MEM_VECTOR_MAKE(prog_function, functions);
79 MEM_VECTOR_MAKE(char, strings);
80 MEM_VECTOR_MAKE(qcint, globals);
81 MEM_VECTOR_MAKE(qcint, entitydata);
83 size_t tempstring_start;
88 MEM_VECTOR_MAKE(size_t, profile);
90 MEM_VECTOR_MAKE(prog_builtin, builtins);
95 bool allowworldwrites;
97 MEM_VECTOR_MAKE(qcint, localstack);
98 MEM_VECTOR_MAKE(qc_exec_stack, stack);
101 int argc; /* current arg count for debugging */
103 MEM_VEC_FUNCTIONS(qc_program, prog_statement, code)
104 MEM_VEC_FUNCTIONS(qc_program, prog_def, defs)
105 MEM_VEC_FUNCTIONS(qc_program, prog_def, fields)
106 MEM_VEC_FUNCTIONS(qc_program, prog_function, functions)
107 MEM_VEC_FUNCTIONS(qc_program, char, strings)
108 _MEM_VEC_FUN_APPEND(qc_program, char, strings)
109 _MEM_VEC_FUN_RESIZE(qc_program, char, strings)
110 MEM_VEC_FUNCTIONS(qc_program, qcint, globals)
111 MEM_VEC_FUNCTIONS(qc_program, qcint, entitydata)
113 MEM_VEC_FUNCTIONS(qc_program, qcint, localstack)
114 _MEM_VEC_FUN_APPEND(qc_program, qcint, localstack)
115 _MEM_VEC_FUN_RESIZE(qc_program, qcint, localstack)
116 MEM_VEC_FUNCTIONS(qc_program, qc_exec_stack, stack)
118 MEM_VEC_FUNCTIONS(qc_program, size_t, profile)
119 _MEM_VEC_FUN_RESIZE(qc_program, size_t, profile)
121 qc_program* prog_load(const char *filename)
127 file = fopen(filename, "rb");
131 if (fread(&header, sizeof(header), 1, file) != 1) {
137 if (header.version != 6) {
138 printf("header says this is a version %i progs, we need version 6\n",
144 prog = (qc_program*)mem_a(sizeof(qc_program));
147 printf("failed to allocate program data\n");
150 memset(prog, 0, sizeof(*prog));
152 prog->entityfields = header.entfield;
154 prog->filename = util_strdup(filename);
157 #define read_data(hdrvar, progvar, type) \
158 if (fseek(file, header.hdrvar.offset, SEEK_SET) != 0) { \
162 prog->progvar##_alloc = header.hdrvar.length; \
163 prog->progvar##_count = header.hdrvar.length; \
164 prog->progvar = (type*)mem_a(header.hdrvar.length * sizeof(*prog->progvar)); \
165 if (!prog->progvar) \
167 if (fread(prog->progvar, sizeof(*prog->progvar), header.hdrvar.length, file) \
168 != header.hdrvar.length) { \
172 #define read_data1(x, y) read_data(x, x, y)
174 read_data (statements, code, prog_statement);
175 read_data1(defs, prog_def);
176 read_data1(fields, prog_def);
177 read_data1(functions, prog_function);
178 read_data1(strings, char);
179 read_data1(globals, qcint);
183 /* profile counters */
184 if (!qc_program_profile_resize(prog, prog->code_count))
187 /* Add tempstring area */
188 prog->tempstring_start = prog->strings_count;
189 prog->tempstring_at = prog->strings_count;
190 if (!qc_program_strings_resize(prog, prog->strings_count + 16*1024))
196 if (prog->filename) mem_d(prog->filename);
197 if (prog->code) mem_d(prog->code);
198 if (prog->defs) mem_d(prog->defs);
199 if (prog->fields) mem_d(prog->fields);
200 if (prog->functions) mem_d(prog->functions);
201 if (prog->strings) mem_d(prog->strings);
202 if (prog->globals) mem_d(prog->globals);
203 if (prog->entitydata) mem_d(prog->entitydata);
208 void prog_delete(qc_program *prog)
210 if (prog->filename) mem_d(prog->filename);
211 MEM_VECTOR_CLEAR(prog, code);
212 MEM_VECTOR_CLEAR(prog, defs);
213 MEM_VECTOR_CLEAR(prog, fields);
214 MEM_VECTOR_CLEAR(prog, functions);
215 MEM_VECTOR_CLEAR(prog, strings);
216 MEM_VECTOR_CLEAR(prog, globals);
217 MEM_VECTOR_CLEAR(prog, entitydata);
218 MEM_VECTOR_CLEAR(prog, localstack);
219 MEM_VECTOR_CLEAR(prog, stack);
220 MEM_VECTOR_CLEAR(prog, profile);
224 /***********************************************************************
228 char* prog_getstring(qc_program *prog, qcint str)
230 if (str < 0 || str >= prog->strings_count)
231 return "<<<invalid string>>>";
232 return prog->strings + str;
235 prog_def* prog_entfield(qc_program *prog, qcint off)
238 for (i = 0; i < prog->fields_count; ++i) {
239 if (prog->fields[i].offset == off)
240 return (prog->fields + i);
245 prog_def* prog_getdef(qc_program *prog, qcint off)
248 for (i = 0; i < prog->defs_count; ++i) {
249 if (prog->defs[i].offset == off)
250 return (prog->defs + i);
255 qcany* prog_getedict(qc_program *prog, qcint e)
257 return (qcany*)(prog->entitydata + (prog->entityfields + e));
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 void trace_print_global(qc_program *prog, unsigned int glob, int vtype)
293 static char spaces[16+1] = " ";
301 def = prog_getdef(prog, glob);
302 value = (qcany*)(&prog->globals[glob]);
305 len = printf("[%s] ", prog_getstring(prog, def->name));
309 len = printf("[#%u] ", glob);
317 len += printf("%i,", value->_int);
320 len += printf("'%g %g %g',", value->vector[0],
325 len += printf("\"%s\",", prog_getstring(prog, value->string));
329 len += printf("%g,", value->_float);
335 spaces[16-len] = ' ';
339 static void prog_print_statement(qc_program *prog, prog_statement *st)
341 if (st->opcode >= (sizeof(asm_instr)/sizeof(asm_instr[0]))) {
342 printf("<illegal instruction %d>\n", st->opcode);
345 printf("%-12s", asm_instr[st->opcode].m);
346 if (st->opcode >= INSTR_IF &&
347 st->opcode <= INSTR_IFNOT)
349 trace_print_global(prog, st->o1.u1, TYPE_FLOAT);
350 printf("%d\n", st->o2.s1);
352 else if (st->opcode >= INSTR_CALL0 &&
353 st->opcode <= INSTR_CALL8)
357 else if (st->opcode == INSTR_GOTO)
359 printf("%i\n", st->o1.s1);
363 int t[3] = { TYPE_FLOAT, TYPE_FLOAT, TYPE_FLOAT };
367 t[1] = t[2] = TYPE_VECTOR;
370 t[0] = t[2] = TYPE_VECTOR;
373 t[0] = t[1] = TYPE_VECTOR;
379 t[0] = t[1] = t[2] = TYPE_VECTOR;
383 t[0] = t[1] = TYPE_STRING;
386 t[0] = t[1] = TYPE_VECTOR; t[2] = -1;
389 t[0] = t[1] = TYPE_STRING; t[2] = -1;
392 if (t[0] >= 0) trace_print_global(prog, st->o1.u1, t[0]);
393 if (t[1] >= 0) trace_print_global(prog, st->o2.u1, t[1]);
394 if (t[2] >= 0) trace_print_global(prog, st->o3.u1, t[2]);
399 static qcint prog_enterfunction(qc_program *prog, prog_function *func)
402 prog_function *cur = NULL;
404 if (prog->stack_count)
405 cur = prog->stack[prog->stack_count-1].function;
408 st.localsp = prog->localstack_count;
409 st.stmt = prog->statement;
414 qcint *globals = prog->globals + cur->firstlocal;
415 if (!qc_program_localstack_append(prog, globals, cur->locals))
417 printf("out of memory\n");
422 if (!qc_program_stack_add(prog, st)) {
423 printf("out of memory\n");
430 static qcint prog_leavefunction(qc_program *prog)
432 qc_exec_stack st = prog->stack[prog->stack_count-1];
433 if (!qc_program_stack_remove(prog, prog->stack_count-1)) {
434 printf("out of memory\n");
438 if (st.localsp != prog->localstack_count) {
439 if (!qc_program_localstack_resize(prog, st.localsp)) {
440 printf("out of memory\n");
448 bool prog_exec(qc_program *prog, prog_function *func, size_t flags, long maxjumps)
453 st = prog->code + prog_enterfunction(prog, func);
460 #define QCVM_PROFILE 0
462 # include "qcvm_execprogram.h"
467 #define QCVM_PROFILE 0
469 # include "qcvm_execprogram.h"
474 #define QCVM_PROFILE 1
476 # include "qcvm_execprogram.h"
479 case (VMXF_TRACE|VMXF_PROFILE):
481 #define QCVM_PROFILE 1
483 # include "qcvm_execprogram.h"
489 prog->localstack_count = 0;
490 prog->stack_count = 0;
494 /***********************************************************************
495 * main for when building the standalone executor
498 #if defined(QCVM_EXECUTOR)
499 int main(int argc, char **argv)
506 printf("usage: %s file\n", argv[0]);
510 prog = prog_load(argv[1]);
512 printf("failed to load program '%s'\n", argv[1]);
516 for (i = 1; i < prog->functions_count; ++i) {
517 const char *name = prog_getstring(prog, prog->functions[i].name);
518 printf("Found function: %s\n", name);
519 if (!strcmp(name, "main"))
524 prog_exec(prog, &prog->functions[fnmain], VMXF_TRACE, JUMPS_DEFAULT);
527 printf("No main function found\n");