5 qc_program* prog_load(const char *filename)
11 file = fopen(filename, "rb");
15 if (fread(&header, sizeof(header), 1, file) != 1) {
21 if (header.version != 6) {
22 printf("header says this is a version %i progs, we need version 6\n",
28 prog = (qc_program*)mem_a(sizeof(qc_program));
31 printf("failed to allocate program data\n");
34 memset(prog, 0, sizeof(*prog));
36 prog->entityfields = header.entfield;
38 prog->filename = util_strdup(filename);
41 #define read_data(hdrvar, progvar, type) \
42 if (fseek(file, header.hdrvar.offset, SEEK_SET) != 0) { \
46 prog->progvar##_alloc = header.hdrvar.length; \
47 prog->progvar##_count = header.hdrvar.length; \
48 prog->progvar = (type*)mem_a(header.hdrvar.length * sizeof(*prog->progvar)); \
51 if (fread(prog->progvar, sizeof(*prog->progvar), header.hdrvar.length, file) \
52 != header.hdrvar.length) { \
56 #define read_data1(x, y) read_data(x, x, y)
58 read_data (statements, code, prog_statement);
59 read_data1(defs, prog_def);
60 read_data1(fields, prog_def);
61 read_data1(functions, prog_function);
62 read_data1(strings, char);
63 read_data1(globals, qcint);
67 /* profile counters */
68 if (!qc_program_profile_resize(prog, prog->code_count))
71 /* Add tempstring area */
72 prog->tempstring_start = prog->strings_count;
73 prog->tempstring_at = prog->strings_count;
74 if (!qc_program_strings_resize(prog, prog->strings_count + 16*1024))
80 if (prog->filename) mem_d(prog->filename);
81 if (prog->code) mem_d(prog->code);
82 if (prog->defs) mem_d(prog->defs);
83 if (prog->fields) mem_d(prog->fields);
84 if (prog->functions) mem_d(prog->functions);
85 if (prog->strings) mem_d(prog->strings);
86 if (prog->globals) mem_d(prog->globals);
87 if (prog->entitydata) mem_d(prog->entitydata);
92 void prog_delete(qc_program *prog)
94 if (prog->filename) mem_d(prog->filename);
95 MEM_VECTOR_CLEAR(prog, code);
96 MEM_VECTOR_CLEAR(prog, defs);
97 MEM_VECTOR_CLEAR(prog, fields);
98 MEM_VECTOR_CLEAR(prog, functions);
99 MEM_VECTOR_CLEAR(prog, strings);
100 MEM_VECTOR_CLEAR(prog, globals);
101 MEM_VECTOR_CLEAR(prog, entitydata);
102 MEM_VECTOR_CLEAR(prog, localstack);
103 MEM_VECTOR_CLEAR(prog, stack);
104 MEM_VECTOR_CLEAR(prog, profile);
108 /***********************************************************************
112 char* prog_getstring(qc_program *prog, qcint str)
114 if (str < 0 || str >= prog->strings_count)
115 return "<<<invalid string>>>";
116 return prog->strings + str;
119 prog_def* prog_entfield(qc_program *prog, qcint off)
122 for (i = 0; i < prog->fields_count; ++i) {
123 if (prog->fields[i].offset == off)
124 return (prog->fields + i);
129 prog_def* prog_getdef(qc_program *prog, qcint off)
132 for (i = 0; i < prog->defs_count; ++i) {
133 if (prog->defs[i].offset == off)
134 return (prog->defs + i);
139 qcany* prog_getedict(qc_program *prog, qcint e)
141 return (qcany*)(prog->entitydata + (prog->entityfields + e));
144 qcint prog_tempstring(qc_program *prog, const char *_str)
146 /* we don't access it, but the macro-generated functions don't use
149 char *str = (char*)_str;
151 size_t len = strlen(str);
152 size_t at = prog->tempstring_at;
154 /* when we reach the end we start over */
155 if (at + len >= prog->strings_count)
156 at = prog->tempstring_start;
158 /* when it doesn't fit, reallocate */
159 if (at + len >= prog->strings_count)
161 prog->strings_count = at;
162 if (!qc_program_strings_append(prog, str, len+1)) {
163 prog->vmerror = VMERR_TEMPSTRING_ALLOC;
169 /* when it fits, just copy */
170 memcpy(prog->strings + at, str, len+1);
171 prog->tempstring_at += len+1;
175 static void trace_print_global(qc_program *prog, unsigned int glob, int vtype)
177 static char spaces[16+1] = " ";
185 def = prog_getdef(prog, glob);
186 value = (qcany*)(&prog->globals[glob]);
189 len = printf("[%s] ", prog_getstring(prog, def->name));
193 len = printf("[#%u] ", glob);
201 len += printf("%i,", value->_int);
204 len += printf("'%g %g %g',", value->vector[0],
209 len += printf("\"%s\",", prog_getstring(prog, value->string));
213 len += printf("%g,", value->_float);
219 spaces[16-len] = ' ';
223 static void prog_print_statement(qc_program *prog, prog_statement *st)
225 if (st->opcode >= (sizeof(asm_instr)/sizeof(asm_instr[0]))) {
226 printf("<illegal instruction %d>\n", st->opcode);
229 printf("%-12s", asm_instr[st->opcode].m);
230 if (st->opcode >= INSTR_IF &&
231 st->opcode <= INSTR_IFNOT)
233 trace_print_global(prog, st->o1.u1, TYPE_FLOAT);
234 printf("%d\n", st->o2.s1);
236 else if (st->opcode >= INSTR_CALL0 &&
237 st->opcode <= INSTR_CALL8)
241 else if (st->opcode == INSTR_GOTO)
243 printf("%i\n", st->o1.s1);
247 int t[3] = { TYPE_FLOAT, TYPE_FLOAT, TYPE_FLOAT };
251 t[1] = t[2] = TYPE_VECTOR;
254 t[0] = t[2] = TYPE_VECTOR;
257 t[0] = t[1] = TYPE_VECTOR;
263 t[0] = t[1] = t[2] = TYPE_VECTOR;
267 t[0] = t[1] = TYPE_STRING;
270 t[0] = t[1] = TYPE_VECTOR; t[2] = -1;
273 t[0] = t[1] = TYPE_STRING; t[2] = -1;
276 if (t[0] >= 0) trace_print_global(prog, st->o1.u1, t[0]);
277 if (t[1] >= 0) trace_print_global(prog, st->o2.u1, t[1]);
278 if (t[2] >= 0) trace_print_global(prog, st->o3.u1, t[2]);
283 static qcint prog_enterfunction(qc_program *prog, prog_function *func)
286 prog_function *cur = NULL;
288 if (prog->stack_count)
289 cur = prog->stack[prog->stack_count-1].function;
292 st.localsp = prog->localstack_count;
293 st.stmt = prog->statement;
298 qcint *globals = prog->globals + cur->firstlocal;
299 if (!qc_program_localstack_append(prog, globals, cur->locals))
301 printf("out of memory\n");
306 if (!qc_program_stack_add(prog, st)) {
307 printf("out of memory\n");
314 static qcint prog_leavefunction(qc_program *prog)
316 qc_exec_stack st = prog->stack[prog->stack_count-1];
317 if (!qc_program_stack_remove(prog, prog->stack_count-1)) {
318 printf("out of memory\n");
322 if (st.localsp != prog->localstack_count) {
323 if (!qc_program_localstack_resize(prog, st.localsp)) {
324 printf("out of memory\n");
332 bool prog_exec(qc_program *prog, prog_function *func, size_t flags, long maxjumps)
337 st = prog->code + prog_enterfunction(prog, func);
344 #define QCVM_PROFILE 0
346 # include "qcvm_execprogram.h"
351 #define QCVM_PROFILE 0
353 # include "qcvm_execprogram.h"
358 #define QCVM_PROFILE 1
360 # include "qcvm_execprogram.h"
363 case (VMXF_TRACE|VMXF_PROFILE):
365 #define QCVM_PROFILE 1
367 # include "qcvm_execprogram.h"
373 prog->localstack_count = 0;
374 prog->stack_count = 0;
378 /***********************************************************************
379 * main for when building the standalone executor
382 #if defined(QCVM_EXECUTOR)
383 int main(int argc, char **argv)
390 printf("usage: %s file\n", argv[0]);
394 prog = prog_load(argv[1]);
396 printf("failed to load program '%s'\n", argv[1]);
400 for (i = 1; i < prog->functions_count; ++i) {
401 const char *name = prog_getstring(prog, prog->functions[i].name);
402 printf("Found function: %s\n", name);
403 if (!strcmp(name, "main"))
408 prog_exec(prog, &prog->functions[fnmain], VMXF_TRACE, JUMPS_DEFAULT);
411 printf("No main function found\n");