//===========================================================================
// PR2_GetString
//===========================================================================
char *PR2_GetString(intptr_t num)
{
qvm_t *qvm;
if(!sv_vm)
return PR1_GetString(num);
switch (sv_vm->type)
{
case VM_NONE:
return PR1_GetString(num);
case VM_NATIVE:
if (num)
return (char *) num;
else
return "";
case VM_BYTECODE:
if (!num)
return "";
qvm = (qvm_t*)(sv_vm->hInst);
if ( num & ( ~qvm->ds_mask) )
{
Con_DPrintf("PR2_GetString error off %8x/%8x\n", num, qvm->len_ds );
return "";
}
return (char *) (qvm->ds+ num);
}
return NULL;
}
/*
============
PR_Profile_f
============
*/
void PR_Profile_f (void)
{
dfunction_t *f, *best;
int max;
int num;
int i;
if (sv.state != ss_active)
return;
num = 0;
do
{
max = 0;
best = NULL;
for (i=0 ; i<progs->numfunctions ; i++)
{
f = &pr_functions[i];
if (f->profile > max)
{
max = f->profile;
best = f;
}
}
if (best)
{
if (num < 10)
Con_Printf ("%7i %s\n", best->profile, PR1_GetString(best->s_name));
num++;
best->profile = 0;
}
}
while (best);
}
/*
============
PR_StackTrace
============
*/
void PR_StackTrace (void)
{
dfunction_t *f;
int i;
if (pr_depth == 0)
{
Con_Printf ("<NO STACK>\n");
return;
}
pr_stack[pr_depth].f = pr_xfunction;
for (i=pr_depth ; i>=0 ; i--)
{
f = pr_stack[i].f;
if (!f)
Con_Printf ("<NO FUNCTION>\n");
else
Con_Printf ("%12s : %s\n", PR1_GetString(f->s_file), PR1_GetString(f->s_name));
}
}
/*
============================================================================
PR_ExecuteProgram
The interpretation main loop
============================================================================
*/
void PR_ExecuteProgram (func_t fnum)
{
eval_t *a = NULL, *b = NULL, *c = NULL;
int s;
dstatement_t *st = NULL;
dfunction_t *f, *newf;
int runaway;
int i;
edict_t *ed;
int exitdepth;
eval_t *ptr;
if (!fnum || fnum >= progs->numfunctions)
{
if (pr_global_struct->self)
ED_Print (PROG_TO_EDICT(pr_global_struct->self));
SV_Error ("PR_ExecuteProgram: NULL function");
}
f = &pr_functions[fnum];
runaway = 100000;
pr_trace = false;
// make a stack frame
exitdepth = pr_depth;
s = PR_EnterFunction (f);
while (1)
{
s++; // next statement
st = &pr_statements[s];
a = (eval_t *)&pr_globals[st->a];
b = (eval_t *)&pr_globals[st->b];
c = (eval_t *)&pr_globals[st->c];
if (--runaway == 0)
PR_RunError ("runaway loop error");
pr_xfunction->profile++;
pr_xstatement = s;
if (pr_trace)
PR_PrintStatement (st);
switch (st->op)
{
case OP_ADD_F:
c->_float = a->_float + b->_float;
break;
case OP_ADD_V:
c->vector[0] = a->vector[0] + b->vector[0];
c->vector[1] = a->vector[1] + b->vector[1];
c->vector[2] = a->vector[2] + b->vector[2];
break;
case OP_SUB_F:
c->_float = a->_float - b->_float;
break;
case OP_SUB_V:
c->vector[0] = a->vector[0] - b->vector[0];
c->vector[1] = a->vector[1] - b->vector[1];
c->vector[2] = a->vector[2] - b->vector[2];
break;
case OP_MUL_F:
c->_float = a->_float * b->_float;
break;
case OP_MUL_V:
c->_float = a->vector[0]*b->vector[0]
+ a->vector[1]*b->vector[1]
+ a->vector[2]*b->vector[2];
break;
case OP_MUL_FV:
c->vector[0] = a->_float * b->vector[0];
c->vector[1] = a->_float * b->vector[1];
c->vector[2] = a->_float * b->vector[2];
break;
case OP_MUL_VF:
c->vector[0] = b->_float * a->vector[0];
c->vector[1] = b->_float * a->vector[1];
c->vector[2] = b->_float * a->vector[2];
break;
case OP_DIV_F:
c->_float = a->_float / b->_float;
break;
case OP_BITAND:
c->_float = (int)a->_float & (int)b->_float;
break;
case OP_BITOR:
c->_float = (int)a->_float | (int)b->_float;
break;
case OP_GE:
c->_float = a->_float >= b->_float;
break;
case OP_LE:
c->_float = a->_float <= b->_float;
break;
case OP_GT:
c->_float = a->_float > b->_float;
break;
case OP_LT:
c->_float = a->_float < b->_float;
break;
case OP_AND:
c->_float = a->_float && b->_float;
break;
case OP_OR:
c->_float = a->_float || b->_float;
break;
case OP_NOT_F:
c->_float = !a->_float;
break;
case OP_NOT_V:
c->_float = !a->vector[0] && !a->vector[1] && !a->vector[2];
break;
case OP_NOT_S:
c->_float = !a->string || !*PR1_GetString(a->string);
break;
case OP_NOT_FNC:
c->_float = !a->function;
break;
case OP_NOT_ENT:
c->_float = (PROG_TO_EDICT(a->edict) == sv.edicts);
break;
case OP_EQ_F:
c->_float = a->_float == b->_float;
break;
case OP_EQ_V:
c->_float = (a->vector[0] == b->vector[0]) &&
(a->vector[1] == b->vector[1]) &&
(a->vector[2] == b->vector[2]);
break;
case OP_EQ_S:
c->_float = !strcmp(PR1_GetString(a->string), PR1_GetString(b->string));
break;
case OP_EQ_E:
c->_float = a->_int == b->_int;
break;
case OP_EQ_FNC:
c->_float = a->function == b->function;
break;
case OP_NE_F:
c->_float = a->_float != b->_float;
break;
case OP_NE_V:
c->_float = (a->vector[0] != b->vector[0]) ||
(a->vector[1] != b->vector[1]) ||
(a->vector[2] != b->vector[2]);
break;
case OP_NE_S:
c->_float = strcmp(PR1_GetString(a->string), PR1_GetString(b->string));
break;
case OP_NE_E:
c->_float = a->_int != b->_int;
break;
case OP_NE_FNC:
c->_float = a->function != b->function;
break;
//==================
case OP_STORE_F:
case OP_STORE_ENT:
case OP_STORE_FLD: // integers
case OP_STORE_S:
case OP_STORE_FNC: // pointers
b->_int = a->_int;
break;
case OP_STORE_V:
b->vector[0] = a->vector[0];
b->vector[1] = a->vector[1];
b->vector[2] = a->vector[2];
break;
case OP_STOREP_F:
case OP_STOREP_ENT:
case OP_STOREP_FLD: // integers
case OP_STOREP_S:
case OP_STOREP_FNC: // pointers
ptr = (eval_t *)((byte *)sv.edicts + b->_int);
ptr->_int = a->_int;
break;
case OP_STOREP_V:
ptr = (eval_t *)((byte *)sv.edicts + b->_int);
ptr->vector[0] = a->vector[0];
ptr->vector[1] = a->vector[1];
ptr->vector[2] = a->vector[2];
break;
case OP_ADDRESS:
ed = PROG_TO_EDICT(a->edict);
#ifdef PARANOID
NUM_FOR_EDICT(ed); // make sure it's in range
#endif
if (ed == (edict_t *)sv.edicts && sv.state == ss_active)
PR_RunError ("assignment to world entity");
c->_int = (byte *)((int *)&ed->v + PR_FIELDOFS(b->_int)) - (byte *)sv.edicts;
break;
case OP_LOAD_F:
case OP_LOAD_FLD:
case OP_LOAD_ENT:
case OP_LOAD_S:
case OP_LOAD_FNC:
ed = PROG_TO_EDICT(a->edict);
#ifdef PARANOID
NUM_FOR_EDICT(ed); // make sure it's in range
#endif
//need for checking 'cmd mmode player N', if N >= 0x10000000 =(signed)=> negative
if (b->_int >= 0)
{
a = (eval_t *)((int *)&ed->v + PR_FIELDOFS(b->_int));
c->_int = a->_int;
}
else
c->_int = 0;
break;
case OP_LOAD_V:
ed = PROG_TO_EDICT(a->edict);
#ifdef PARANOID
NUM_FOR_EDICT(ed); // make sure it's in range
#endif
a = (eval_t *)((int *)&ed->v + PR_FIELDOFS(b->_int));
c->vector[0] = a->vector[0];
c->vector[1] = a->vector[1];
c->vector[2] = a->vector[2];
break;
//==================
case OP_IFNOT:
if (!a->_int)
s += st->b - 1; // offset the s++
break;
case OP_IF:
if (a->_int)
s += st->b - 1; // offset the s++
break;
case OP_GOTO:
s += st->a - 1; // offset the s++
break;
case OP_CALL0:
case OP_CALL1:
case OP_CALL2:
case OP_CALL3:
case OP_CALL4:
case OP_CALL5:
case OP_CALL6:
case OP_CALL7:
case OP_CALL8:
pr_argc = st->op - OP_CALL0;
if (!a->function)
PR_RunError ("NULL function");
newf = &pr_functions[a->function];
if (newf->first_statement < 0)
{ // negative statements are built in functions
i = -newf->first_statement;
if (i >= pr_numbuiltins)
PR_RunError ("Bad builtin call number");
pr_builtins[i] ();
break;
}
s = PR_EnterFunction (newf);
break;
case OP_DONE:
case OP_RETURN:
pr_globals[OFS_RETURN] = pr_globals[st->a];
pr_globals[OFS_RETURN+1] = pr_globals[st->a+1];
pr_globals[OFS_RETURN+2] = pr_globals[st->a+2];
s = PR_LeaveFunction ();
if (pr_depth == exitdepth)
return; // all done
break;
case OP_STATE:
ed = PROG_TO_EDICT(pr_global_struct->self);
ed->v.nextthink = pr_global_struct->time + 0.1;
if (a->_float != ed->v.frame)
{
ed->v.frame = a->_float;
}
ed->v.think = b->function;
break;
default:
PR_RunError ("Bad opcode %i", st->op);
}
}
}
