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gmqcc/execloop.h

349 lines
10 KiB
C
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#if 0
/* Expected variables */
qc_program *prog;
#endif
#define OPA ( (qcany*) (prog->globals + st->o1.u1) )
#define OPB ( (qcany*) (prog->globals + st->o2.u1) )
#define OPC ( (qcany*) (prog->globals + st->o3.u1) )
#define GLOBAL(x) ( (qcany*) (prog->globals + (x)) )
/* to be consistent with current darkplaces behaviour */
#if !defined(FLOAT_IS_TRUE_FOR_INT)
# define FLOAT_IS_TRUE_FOR_INT(x) ( (x) & 0x7FFFFFFF )
#endif
while (1) {
prog_section_function *newf;
qcany *ed;
qcany *ptr;
++st;
#if QCVM_PROFILE
prog->profile[st - prog->code]++;
#endif
#if QCVM_TRACE
prog_print_statement(prog, st);
#endif
switch (st->opcode)
{
default:
qcvmerror(prog, "Illegal instruction in %s\n", prog->filename);
goto cleanup;
case INSTR_DONE:
case INSTR_RETURN:
/* TODO: add instruction count to function profile count */
GLOBAL(OFS_RETURN)->ivector[0] = OPA->ivector[0];
GLOBAL(OFS_RETURN)->ivector[1] = OPA->ivector[1];
GLOBAL(OFS_RETURN)->ivector[2] = OPA->ivector[2];
st = prog->code + prog_leavefunction(prog);
if (!prog->stack_count)
goto cleanup;
break;
case INSTR_MUL_F:
OPC->_float = OPA->_float * OPB->_float;
break;
case INSTR_MUL_V:
OPC->_float = OPA->vector[0]*OPB->vector[0] +
OPA->vector[1]*OPB->vector[1] +
OPA->vector[2]*OPB->vector[2];
break;
case INSTR_MUL_FV:
OPC->vector[0] = OPA->_float * OPB->vector[0];
OPC->vector[1] = OPA->_float * OPB->vector[1];
OPC->vector[2] = OPA->_float * OPB->vector[2];
break;
case INSTR_MUL_VF:
OPC->vector[0] = OPB->_float * OPA->vector[0];
OPC->vector[1] = OPB->_float * OPA->vector[1];
OPC->vector[2] = OPB->_float * OPA->vector[2];
break;
case INSTR_DIV_F:
if (OPB->_float != 0.0f)
OPC->_float = OPA->_float / OPB->_float;
else
OPC->_float = 0;
break;
case INSTR_ADD_F:
OPC->_float = OPA->_float + OPB->_float;
break;
case INSTR_ADD_V:
OPC->vector[0] = OPA->vector[0] + OPB->vector[0];
OPC->vector[1] = OPA->vector[1] + OPB->vector[1];
OPC->vector[2] = OPA->vector[2] + OPB->vector[2];
break;
case INSTR_SUB_F:
OPC->_float = OPA->_float - OPB->_float;
break;
case INSTR_SUB_V:
OPC->vector[0] = OPA->vector[0] - OPB->vector[0];
OPC->vector[1] = OPA->vector[1] - OPB->vector[1];
OPC->vector[2] = OPA->vector[2] - OPB->vector[2];
break;
case INSTR_EQ_F:
OPC->_float = (OPA->_float == OPB->_float);
break;
case INSTR_EQ_V:
OPC->_float = ((OPA->vector[0] == OPB->vector[0]) &&
(OPA->vector[1] == OPB->vector[1]) &&
(OPA->vector[2] == OPB->vector[2]) );
break;
case INSTR_EQ_S:
OPC->_float = !strcmp(prog_getstring(prog, OPA->string),
prog_getstring(prog, OPB->string));
break;
case INSTR_EQ_E:
OPC->_float = (OPA->_int == OPB->_int);
break;
case INSTR_EQ_FNC:
OPC->_float = (OPA->function == OPB->function);
break;
case INSTR_NE_F:
OPC->_float = (OPA->_float != OPB->_float);
break;
case INSTR_NE_V:
OPC->_float = ((OPA->vector[0] != OPB->vector[0]) ||
(OPA->vector[1] != OPB->vector[1]) ||
(OPA->vector[2] != OPB->vector[2]) );
break;
case INSTR_NE_S:
OPC->_float = !!strcmp(prog_getstring(prog, OPA->string),
prog_getstring(prog, OPB->string));
break;
case INSTR_NE_E:
OPC->_float = (OPA->_int != OPB->_int);
break;
case INSTR_NE_FNC:
OPC->_float = (OPA->function != OPB->function);
break;
case INSTR_LE:
OPC->_float = (OPA->_float <= OPB->_float);
break;
case INSTR_GE:
OPC->_float = (OPA->_float >= OPB->_float);
break;
case INSTR_LT:
OPC->_float = (OPA->_float < OPB->_float);
break;
case INSTR_GT:
OPC->_float = (OPA->_float > OPB->_float);
break;
case INSTR_LOAD_F:
case INSTR_LOAD_S:
case INSTR_LOAD_FLD:
case INSTR_LOAD_ENT:
case INSTR_LOAD_FNC:
if (OPA->edict < 0 || OPA->edict >= prog->entities) {
qcvmerror(prog, "progs `%s` attempted to read an out of bounds entity", prog->filename);
goto cleanup;
}
if ((unsigned int)(OPB->_int) >= (unsigned int)(prog->entityfields)) {
qcvmerror(prog, "prog `%s` attempted to read an invalid field from entity (%i)",
prog->filename,
OPB->_int);
goto cleanup;
}
ed = prog_getedict(prog, OPA->edict);
OPC->_int = ((qcany*)( ((qcint*)ed) + OPB->_int ))->_int;
break;
case INSTR_LOAD_V:
if (OPA->edict < 0 || OPA->edict >= prog->entities) {
qcvmerror(prog, "progs `%s` attempted to read an out of bounds entity", prog->filename);
goto cleanup;
}
if (OPB->_int < 0 || OPB->_int + 3 > prog->entityfields)
{
qcvmerror(prog, "prog `%s` attempted to read an invalid field from entity (%i)",
prog->filename,
OPB->_int + 2);
goto cleanup;
}
ed = prog_getedict(prog, OPA->edict);
OPC->ivector[0] = ((qcany*)( ((qcint*)ed) + OPB->_int ))->ivector[0];
OPC->ivector[1] = ((qcany*)( ((qcint*)ed) + OPB->_int ))->ivector[1];
OPC->ivector[2] = ((qcany*)( ((qcint*)ed) + OPB->_int ))->ivector[2];
break;
case INSTR_ADDRESS:
if (OPA->edict < 0 || OPA->edict >= prog->entities) {
qcvmerror(prog, "prog `%s` attempted to address an out of bounds entity %i", prog->filename, OPA->edict);
goto cleanup;
}
if ((unsigned int)(OPB->_int) >= (unsigned int)(prog->entityfields))
{
qcvmerror(prog, "prog `%s` attempted to read an invalid field from entity (%i)",
prog->filename,
OPB->_int);
goto cleanup;
}
ed = prog_getedict(prog, OPA->edict);
OPC->_int = ((qcint*)ed) - prog->entitydata;
OPC->_int += OPB->_int;
break;
case INSTR_STORE_F:
case INSTR_STORE_S:
case INSTR_STORE_ENT:
case INSTR_STORE_FLD:
case INSTR_STORE_FNC:
OPB->_int = OPA->_int;
break;
case INSTR_STORE_V:
OPB->ivector[0] = OPA->ivector[0];
OPB->ivector[1] = OPA->ivector[1];
OPB->ivector[2] = OPA->ivector[2];
break;
case INSTR_STOREP_F:
case INSTR_STOREP_S:
case INSTR_STOREP_ENT:
case INSTR_STOREP_FLD:
case INSTR_STOREP_FNC:
if (OPB->_int < 0 || OPB->_int >= prog->entitydata_count) {
qcvmerror(prog, "`%s` attempted to write to an out of bounds edict (%i)", prog->filename, OPB->_int);
goto cleanup;
}
if (OPB->_int < prog->entityfields && !prog->allowworldwrites)
qcvmerror(prog, "`%s` tried to assign to world.%s (field %i)\n",
prog->filename,
prog_getstring(prog, prog_entfield(prog, OPB->_int)->name),
OPB->_int);
ptr = (qcany*)(prog->entitydata + OPB->_int);
ptr->_int = OPA->_int;
break;
case INSTR_STOREP_V:
if (OPB->_int < 0 || OPB->_int + 2 >= prog->entitydata_count) {
qcvmerror(prog, "`%s` attempted to write to an out of bounds edict (%i)", prog->filename, OPB->_int);
goto cleanup;
}
if (OPB->_int < prog->entityfields && !prog->allowworldwrites)
qcvmerror(prog, "`%s` tried to assign to world.%s (field %i)\n",
prog->filename,
prog_getstring(prog, prog_entfield(prog, OPB->_int)->name),
OPB->_int);
ptr = (qcany*)(prog->entitydata + OPB->_int);
ptr->ivector[0] = OPA->ivector[0];
ptr->ivector[1] = OPA->ivector[1];
ptr->ivector[2] = OPA->ivector[2];
break;
case INSTR_NOT_F:
OPC->_float = !FLOAT_IS_TRUE_FOR_INT(OPA->_int);
break;
case INSTR_NOT_V:
OPC->_float = !OPA->vector[0] &&
!OPA->vector[1] &&
!OPA->vector[2];
break;
case INSTR_NOT_S:
OPC->_float = !OPA->string ||
!*prog_getstring(prog, OPA->string);
break;
case INSTR_NOT_ENT:
OPC->_float = (OPA->edict == 0);
break;
case INSTR_NOT_FNC:
OPC->_float = !OPA->function;
break;
case INSTR_IF:
/* this is consistent with darkplaces' behaviour */
if(FLOAT_IS_TRUE_FOR_INT(OPA->_int))
{
st += st->o2.s1 - 1; /* offset the s++ */
if (++jumpcount >= maxjumps)
qcvmerror(prog, "`%s` hit the runaway loop counter limit of %li jumps", prog->filename, jumpcount);
}
break;
case INSTR_IFNOT:
if(!FLOAT_IS_TRUE_FOR_INT(OPA->_int))
{
st += st->o2.s1 - 1; /* offset the s++ */
if (++jumpcount >= maxjumps)
qcvmerror(prog, "`%s` hit the runaway loop counter limit of %li jumps", prog->filename, jumpcount);
}
break;
case INSTR_CALL0:
case INSTR_CALL1:
case INSTR_CALL2:
case INSTR_CALL3:
case INSTR_CALL4:
case INSTR_CALL5:
case INSTR_CALL6:
case INSTR_CALL7:
case INSTR_CALL8:
prog->argc = st->opcode - INSTR_CALL0;
if (!OPA->function)
qcvmerror(prog, "NULL function in `%s`", prog->filename);
if(!OPA->function || OPA->function >= (unsigned int)prog->functions_count)
{
qcvmerror(prog, "CALL outside the program in `%s`", prog->filename);
goto cleanup;
}
newf = &prog->functions[OPA->function];
newf->profile++;
prog->statement = (st - prog->code) + 1;
if (newf->entry < 0)
{
/* negative statements are built in functions */
int builtinnumber = -newf->entry;
if (builtinnumber < prog->builtins_count && prog->builtins[builtinnumber])
prog->builtins[builtinnumber](prog);
else
qcvmerror(prog, "No such builtin #%i in %s! Try updating your gmqcc sources",
builtinnumber, prog->filename);
}
else
st = prog->code + prog_enterfunction(prog, newf);
if (prog->vmerror)
goto cleanup;
break;
case INSTR_STATE:
qcvmerror(prog, "`%s` tried to execute a STATE operation", prog->filename);
break;
case INSTR_GOTO:
st += st->o1.s1 - 1; /* offset the s++ */
if (++jumpcount == 10000000)
qcvmerror(prog, "`%s` hit the runaway loop counter limit of %li jumps", prog->filename, jumpcount);
break;
case INSTR_AND:
OPC->_float = FLOAT_IS_TRUE_FOR_INT(OPA->_int) &&
FLOAT_IS_TRUE_FOR_INT(OPB->_int);
break;
case INSTR_OR:
OPC->_float = FLOAT_IS_TRUE_FOR_INT(OPA->_int) ||
FLOAT_IS_TRUE_FOR_INT(OPB->_int);
break;
case INSTR_BITAND:
OPC->_float = ((int)OPA->_float) & ((int)OPB->_float);
break;
case INSTR_BITOR:
OPC->_float = ((int)OPA->_float) | ((int)OPB->_float);
break;
}
}
#undef QCVM_PROFILE
#undef QCVM_TRACE
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