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quakeforge/libs/gamecode/engine/pr_exec.c
Bill Currie fe3b544528 handle "return 0" a bit better. assumes location is is always 0, but it 
always has been (and always /should/ be anyway:)
2003-08-13 17:27:34 +00:00

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/*
pr_exec.c
(description)
Copyright (C) 1996-1997 Id Software, Inc.
This program is free software; you can redistribute it and/or
modify it under the terms of the GNU General Public License
as published by the Free Software Foundation; either version 2
of the License, or (at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
See the GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to:
Free Software Foundation, Inc.
59 Temple Place - Suite 330
Boston, MA 02111-1307, USA
*/
#ifdef HAVE_CONFIG_H
# include "config.h"
#endif
static __attribute__ ((unused)) const char rcsid[] =
"$Id$";
#ifdef HAVE_STRING_H
# include <string.h>
#endif
#ifdef HAVE_STRINGS_H
# include <strings.h>
#endif
#include <signal.h>
#include <stdarg.h>
#include "QF/cvar.h"
#include "QF/dstring.h"
#include "QF/mathlib.h"
#include "QF/progs.h"
#include "QF/sys.h"
#include "QF/zone.h"
#include "compat.h"
/*
PR_RunError
Aborts the currently executing function
*/
void
PR_RunError (progs_t * pr, const char *error, ...)
{
dstring_t *string = dstring_new ();
va_list argptr;
va_start (argptr, error);
dvsprintf (string, error, argptr);
va_end (argptr);
PR_DumpState (pr);
Sys_Printf ("%s\n", string->str);
// dump the stack so PR_Error can shutdown functions
pr->pr_depth = 0;
PR_Error (pr, "Program error: %s", string->str);
}
/*
PR_EnterFunction
Returns the new program statement counter
*/
void
PR_EnterFunction (progs_t * pr, dfunction_t *f)
{
int i, j, c, o;
int k;
//Sys_Printf("%s:\n", PR_GetString(pr,f->s_name));
pr->pr_stack[pr->pr_depth].s = pr->pr_xstatement;
pr->pr_stack[pr->pr_depth].f = pr->pr_xfunction;
pr->pr_depth++;
if (pr->pr_depth >= MAX_STACK_DEPTH - 1)
PR_RunError (pr, "stack overflow");
// save off any locals that the new function steps on
c = f->locals;
if (pr->localstack_used + c > LOCALSTACK_SIZE)
PR_RunError (pr, "PR_EnterFunction: locals stack overflow");
memcpy (&pr->localstack[pr->localstack_used],
&pr->pr_globals[f->parm_start],
sizeof (pr_type_t) * c);
pr->localstack_used += c;
if (pr_deadbeef_locals->int_val)
for (k = f->parm_start; k < f->parm_start + c; k++)
pr->pr_globals[k].integer_var = 0xdeadbeef;
// copy parameters
o = f->parm_start;
if (f->numparms >= 0) {
for (i = 0; i < f->numparms; i++) {
for (j = 0; j < f->parm_size[i]; j++) {
memcpy (&pr->pr_globals[o], &P_INT (pr, i) + j,
sizeof (pr_type_t));
o++;
}
}
} else {
pr_type_t *argc = &pr->pr_globals[o++];
pr_type_t *argv = &pr->pr_globals[o++];
for (i = 0; i < -f->numparms - 1; i++) {
for (j = 0; j < f->parm_size[i]; j++) {
memcpy (&pr->pr_globals[o], &P_INT (pr, i) + j,
sizeof (pr_type_t));
o++;
}
}
argc->integer_var = pr->pr_argc - i;
argv->integer_var = o;
if (i < MAX_PARMS) {
memcpy (&pr->pr_globals[o], &P_INT (pr, i),
(MAX_PARMS - i) * pr->pr_param_size * sizeof (pr_type_t));
}
}
pr->pr_xfunction = f;
pr->pr_xstatement = f->first_statement - 1; // offset the s++
return;
}
static void
PR_LeaveFunction (progs_t * pr)
{
int c;
if (pr->pr_depth <= 0)
PR_Error (pr, "prog stack underflow");
// restore locals from the stack
c = pr->pr_xfunction->locals;
pr->localstack_used -= c;
if (pr->localstack_used < 0)
PR_RunError (pr, "PR_LeaveFunction: locals stack underflow");
memcpy (&pr->pr_globals[pr->pr_xfunction->parm_start],
&pr->localstack[pr->localstack_used],
sizeof (pr_type_t) * c);
// up stack
pr->pr_depth--;
pr->pr_xfunction = pr->pr_stack[pr->pr_depth].f;
pr->pr_xstatement = pr->pr_stack[pr->pr_depth].s;
}
#define OPA (*op_a)
#define OPB (*op_b)
#define OPC (*op_c)
/*
This gets around the problem of needing to test for -0.0 but denormals
causing exceptions (or wrong results for what we need) on the alpha.
*/
#define FNZ(x) ((x).uinteger_var && (x).uinteger_var != 0x80000000u)
static int
signal_hook (int sig, void *data)
{
progs_t *pr = (progs_t *) data;
if (sig == SIGFPE && pr_faultchecks->int_val) {
dstatement_t *st;
pr_type_t *op_a, *op_b, *op_c;
st = pr->pr_statements + pr->pr_xstatement;
op_a = pr->pr_globals + st->a;
op_b = pr->pr_globals + st->b;
op_c = pr->pr_globals + st->c;
switch (st->op) {
case OP_DIV_F:
if ((OPA.integer_var & 0x80000000)
^ (OPB.integer_var & 0x80000000))
OPC.integer_var = 0xff7fffff;
else
OPC.integer_var = 0x7f7fffff;
return 1;
case OP_DIV_I:
if (OPA.integer_var & 0x80000000)
OPC.integer_var = -0x80000000;
else
OPC.integer_var = 0x7fffffff;
return 1;
default:
break;
}
}
PR_DumpState (pr);
return 0;
}
/*
PR_ExecuteProgram
The interpretation main loop
*/
void
PR_ExecuteProgram (progs_t * pr, func_t fnum)
{
int exitdepth, profile, startprofile;
unsigned int pointer;
dfunction_t *f, *newf;
dstatement_t *st;
edict_t *ed;
pr_type_t *ptr;
if (!fnum || fnum >= pr->progs->numfunctions) {
if (*pr->globals.self)
ED_Print (pr, PROG_TO_EDICT (pr, *pr->globals.self));
PR_RunError (pr, "PR_ExecuteProgram: NULL function");
}
f = &pr->pr_functions[fnum];
//Sys_Printf("%s:\n", PR_GetString(pr,f->s_name));
pr->pr_trace = false;
// make a stack frame
exitdepth = pr->pr_depth;
PR_EnterFunction (pr, f);
st = pr->pr_statements + pr->pr_xstatement;
startprofile = profile = 0;
Sys_PushSignalHook (signal_hook, pr);
while (1) {
pr_type_t *op_a, *op_b, *op_c;
st++;
++pr->pr_xstatement;
if (pr->pr_xstatement != st - pr->pr_statements)
PR_RunError (pr, "internal error");
if (++profile > 1000000 && !pr->no_exec_limit) {
PR_RunError (pr, "runaway loop error");
}
op_a = pr->pr_globals + st->a;
op_b = pr->pr_globals + st->b;
op_c = pr->pr_globals + st->c;
if (pr->pr_trace)
PR_PrintStatement (pr, st);
switch (st->op) {
case OP_ADD_F:
OPC.float_var = OPA.float_var + OPB.float_var;
break;
case OP_ADD_V:
VectorAdd (OPA.vector_var, OPB.vector_var, OPC.vector_var);
break;
case OP_ADD_S:
{
char *a = PR_GetString (pr, OPA.string_var);
char *b = PR_GetString (pr, OPB.string_var);
int lena = strlen (a);
int size = lena + strlen (b) + 1;
char *c = Hunk_TempAlloc (size);
strcpy (c, a);
strcpy (c + lena, b);
OPC.string_var = PR_SetString (pr, c);
}
break;
case OP_SUB_F:
OPC.float_var = OPA.float_var - OPB.float_var;
break;
case OP_SUB_V:
VectorSubtract (OPA.vector_var, OPB.vector_var, OPC.vector_var);
break;
case OP_MUL_F:
OPC.float_var = OPA.float_var * OPB.float_var;
break;
case OP_MUL_V:
OPC.float_var = DotProduct (OPA.vector_var, OPB.vector_var);
break;
case OP_MUL_FV:
VectorScale (OPB.vector_var, OPA.float_var, OPC.vector_var);
break;
case OP_MUL_VF:
VectorScale (OPA.vector_var, OPB.float_var, OPC.vector_var);
break;
case OP_DIV_F:
OPC.float_var = OPA.float_var / OPB.float_var;
break;
case OP_BITAND:
OPC.float_var = (int) OPA.float_var & (int) OPB.float_var;
break;
case OP_BITOR:
OPC.float_var = (int) OPA.float_var | (int) OPB.float_var;
break;
case OP_BITXOR_F:
OPC.float_var = (int) OPA.float_var ^ (int) OPB.float_var;
break;
case OP_BITNOT_F:
OPC.float_var = ~ (int) OPA.float_var;
break;
case OP_SHL_F:
OPC.float_var = (int) OPA.float_var << (int) OPB.float_var;
break;
case OP_SHR_F:
OPC.float_var = (int) OPA.float_var >> (int) OPB.float_var;
break;
case OP_SHL_I:
case OP_SHL_U:
OPC.integer_var = OPA.integer_var << OPB.integer_var;
break;
case OP_SHR_I:
OPC.integer_var = OPA.integer_var >> OPB.integer_var;
break;
case OP_SHR_U:
OPC.uinteger_var = OPA.uinteger_var >> OPB.uinteger_var;
break;
case OP_GE_F:
OPC.float_var = OPA.float_var >= OPB.float_var;
break;
case OP_LE_F:
OPC.float_var = OPA.float_var <= OPB.float_var;
break;
case OP_GT_F:
OPC.float_var = OPA.float_var > OPB.float_var;
break;
case OP_LT_F:
OPC.float_var = OPA.float_var < OPB.float_var;
break;
case OP_AND: // OPA and OPB have to be float for -0.0
OPC.integer_var = FNZ (OPA) && FNZ (OPB);
break;
case OP_OR: // OPA and OPB have to be float for -0.0
OPC.integer_var = FNZ (OPA) || FNZ (OPB);
break;
case OP_NOT_F:
OPC.integer_var = !FNZ (OPA);
break;
case OP_NOT_V:
OPC.integer_var = VectorIsZero (OPA.vector_var);
break;
case OP_NOT_S:
OPC.integer_var = !OPA.string_var ||
!*PR_GetString (pr, OPA.string_var);
break;
case OP_NOT_FNC:
OPC.integer_var = !OPA.func_var;
break;
case OP_NOT_ENT:
OPC.integer_var = !OPA.entity_var;
break;
case OP_EQ_F:
OPC.integer_var = OPA.float_var == OPB.float_var;
break;
case OP_EQ_V:
OPC.integer_var = VectorCompare (OPA.vector_var,
OPB.vector_var);
break;
case OP_EQ_E:
OPC.integer_var = OPA.integer_var == OPB.integer_var;
break;
case OP_EQ_FNC:
OPC.integer_var = OPA.func_var == OPB.func_var;
break;
case OP_NE_F:
OPC.integer_var = OPA.float_var != OPB.float_var;
break;
case OP_NE_V:
OPC.integer_var = !VectorCompare (OPA.vector_var,
OPB.vector_var);
break;
case OP_LE_S:
case OP_GE_S:
case OP_LT_S:
case OP_GT_S:
case OP_NE_S:
case OP_EQ_S:
{
int cmp = strcmp (PR_GetString (pr, OPA.string_var),
PR_GetString (pr, OPB.string_var));
switch (st->op) {
case OP_LE_S: cmp = (cmp <= 0); break;
case OP_GE_S: cmp = (cmp >= 0); break;
case OP_LT_S: cmp = (cmp < 0); break;
case OP_GT_S: cmp = (cmp > 0); break;
case OP_NE_S: break;
case OP_EQ_S: cmp = !cmp; break;
default: break;
}
OPC.integer_var = cmp;
}
break;
case OP_NE_E:
OPC.integer_var = OPA.integer_var != OPB.integer_var;
break;
case OP_NE_FNC:
OPC.integer_var = OPA.func_var != OPB.func_var;
break;
// ==================
case OP_STORE_F:
case OP_STORE_ENT:
case OP_STORE_FLD: // integers
case OP_STORE_S:
case OP_STORE_FNC: // pointers
case OP_STORE_I:
case OP_STORE_U:
case OP_STORE_P:
OPB.integer_var = OPA.integer_var;
break;
case OP_STORE_V:
VectorCopy (OPA.vector_var, OPB.vector_var);
break;
case OP_STOREP_F:
case OP_STOREP_ENT:
case OP_STOREP_FLD: // integers
case OP_STOREP_S:
case OP_STOREP_FNC: // pointers
case OP_STOREP_I:
case OP_STOREP_U:
case OP_STOREP_P:
//FIXME put bounds checking back
ptr = pr->pr_globals + OPB.integer_var;
ptr->integer_var = OPA.integer_var;
break;
case OP_STOREP_V:
//FIXME put bounds checking back
ptr = pr->pr_globals + OPB.integer_var;
VectorCopy (OPA.vector_var, ptr->vector_var);
break;
case OP_ADDRESS:
if (pr_boundscheck->int_val) {
if (OPA.entity_var < 0
|| OPA.entity_var >= pr->pr_edictareasize)
PR_RunError (pr, "Progs attempted to address an out "
"of bounds edict");
if (OPA.entity_var == 0 && pr->null_bad)
PR_RunError (pr, "assignment to world entity");
if (OPB.uinteger_var >= pr->progs->entityfields)
PR_RunError (pr, "Progs attempted to address an "
"invalid field in an edict");
}
ed = PROG_TO_EDICT (pr, OPA.entity_var);
OPC.integer_var = &ed->v[OPB.integer_var] - pr->pr_globals;
break;
case OP_ADDRESS_F:
case OP_ADDRESS_V:
case OP_ADDRESS_S:
case OP_ADDRESS_ENT:
case OP_ADDRESS_FLD:
case OP_ADDRESS_FNC:
case OP_ADDRESS_I:
case OP_ADDRESS_U:
case OP_ADDRESS_P:
OPC.integer_var = st->a;
break;
case OP_LOAD_F:
case OP_LOAD_FLD:
case OP_LOAD_ENT:
case OP_LOAD_S:
case OP_LOAD_FNC:
case OP_LOAD_I:
case OP_LOAD_U:
case OP_LOAD_P:
if (pr_boundscheck->int_val) {
if (OPA.entity_var < 0
|| OPA.entity_var >= pr->pr_edictareasize)
PR_RunError (pr, "Progs attempted to read an out of "
"bounds edict number");
if (OPB.uinteger_var >= pr->progs->entityfields)
PR_RunError (pr, "Progs attempted to read an invalid "
"field in an edict");
}
ed = PROG_TO_EDICT (pr, OPA.entity_var);
OPC.integer_var = ed->v[OPB.integer_var].integer_var;
break;
case OP_LOAD_V:
if (pr_boundscheck->int_val) {
if (OPA.entity_var < 0
|| OPA.entity_var >= pr->pr_edictareasize)
PR_RunError (pr, "Progs attempted to read an out of "
"bounds edict number");
if (OPB.uinteger_var + 2 >= pr->progs->entityfields)
PR_RunError (pr, "Progs attempted to read an invalid "
"field in an edict");
}
ed = PROG_TO_EDICT (pr, OPA.entity_var);
memcpy (&OPC, &ed->v[OPB.integer_var], 3 * sizeof (OPC));
break;
case OP_LOADB_F:
case OP_LOADB_S:
case OP_LOADB_ENT:
case OP_LOADB_FLD:
case OP_LOADB_FNC:
case OP_LOADB_I:
case OP_LOADB_U:
case OP_LOADB_P:
//FIXME put bounds checking in
pointer = OPA.integer_var + OPB.integer_var;
ptr = pr->pr_globals + pointer;
OPC.integer_var = ptr->integer_var;
break;
case OP_LOADB_V:
//FIXME put bounds checking in
pointer = OPA.integer_var + OPB.integer_var;
ptr = pr->pr_globals + pointer;
VectorCopy (ptr->vector_var, OPC.vector_var);
break;
case OP_LOADBI_F:
case OP_LOADBI_S:
case OP_LOADBI_ENT:
case OP_LOADBI_FLD:
case OP_LOADBI_FNC:
case OP_LOADBI_I:
case OP_LOADBI_U:
case OP_LOADBI_P:
//FIXME put bounds checking in
pointer = OPA.integer_var + (short) st->b;
ptr = pr->pr_globals + pointer;
OPC.integer_var = ptr->integer_var;
break;
case OP_LOADBI_V:
//FIXME put bounds checking in
pointer = OPA.integer_var + (short) st->b;
ptr = pr->pr_globals + pointer;
VectorCopy (ptr->vector_var, OPC.vector_var);
break;
case OP_LEA:
pointer = OPA.integer_var + OPB.integer_var;
OPC.integer_var = pointer;
break;
case OP_LEAI:
pointer = OPA.integer_var + (short) st->b;
OPC.integer_var = pointer;
break;
case OP_STOREB_F:
case OP_STOREB_S:
case OP_STOREB_ENT:
case OP_STOREB_FLD:
case OP_STOREB_FNC:
case OP_STOREB_I:
case OP_STOREB_U:
case OP_STOREB_P:
//FIXME put bounds checking in
pointer = OPB.integer_var + OPC.integer_var;
ptr = pr->pr_globals + pointer;
ptr->integer_var = OPA.integer_var;
break;
case OP_STOREB_V:
//FIXME put bounds checking in
pointer = OPB.integer_var + OPC.integer_var;
ptr = pr->pr_globals + pointer;
VectorCopy (OPA.vector_var, ptr->vector_var);
break;
case OP_STOREBI_F:
case OP_STOREBI_S:
case OP_STOREBI_ENT:
case OP_STOREBI_FLD:
case OP_STOREBI_FNC:
case OP_STOREBI_I:
case OP_STOREBI_U:
case OP_STOREBI_P:
//FIXME put bounds checking in
pointer = OPB.integer_var + (short) st->c;
ptr = pr->pr_globals + pointer;
ptr->integer_var = OPA.integer_var;
break;
case OP_STOREBI_V:
//FIXME put bounds checking in
pointer = OPB.integer_var + (short) st->c;
ptr = pr->pr_globals + pointer;
VectorCopy (OPA.vector_var, ptr->vector_var);
break;
// ==================
case OP_IFNOT:
if (!OPA.integer_var) {
pr->pr_xstatement += (short)st->b - 1; // offset the s++
st = pr->pr_statements + pr->pr_xstatement;
}
break;
case OP_IF:
if (OPA.integer_var) {
pr->pr_xstatement += (short)st->b - 1; // offset the s++
st = pr->pr_statements + pr->pr_xstatement;
}
break;
case OP_IFBE:
if (OPA.integer_var <= 0) {
pr->pr_xstatement += (short)st->b - 1; // offset the s++
st = pr->pr_statements + pr->pr_xstatement;
}
break;
case OP_IFB:
if (OPA.integer_var < 0) {
pr->pr_xstatement += (short)st->b - 1; // offset the s++
st = pr->pr_statements + pr->pr_xstatement;
}
break;
case OP_IFAE:
if (OPA.integer_var >= 0) {
pr->pr_xstatement += (short)st->b - 1; // offset the s++
st = pr->pr_statements + pr->pr_xstatement;
}
break;
case OP_IFA:
if (OPA.integer_var > 0) {
pr->pr_xstatement += (short)st->b - 1; // offset the s++
st = pr->pr_statements + pr->pr_xstatement;
}
break;
case OP_GOTO:
pr->pr_xstatement += (short)st->a - 1; // offset the s++
st = pr->pr_statements + pr->pr_xstatement;
break;
case OP_JUMP:
if (pr_boundscheck->int_val
&& (OPA.uinteger_var >= pr->progs->numstatements)) {
PR_RunError (pr, "Invalid jump destination");
}
pr->pr_xstatement = OPA.uinteger_var;
st = pr->pr_statements + pr->pr_xstatement;
break;
case OP_JUMPB:
//FIXME put bounds checking in
pointer = OPA.integer_var + OPB.integer_var;
ptr = pr->pr_globals + pointer;
pointer = ptr->integer_var;
if (pr_boundscheck->int_val
&& (pointer >= pr->progs->numstatements)) {
PR_RunError (pr, "Invalid jump destination");
}
pr->pr_xstatement = pointer;
st = pr->pr_statements + pr->pr_xstatement;
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->pr_xfunction->profile += profile - startprofile;
startprofile = profile;
pr->pr_argc = st->op - OP_CALL0;
if (!OPA.func_var)
PR_RunError (pr, "NULL function");
newf = &pr->pr_functions[OPA.func_var];
if (newf->first_statement < 0) {
// negative statements are built in functions
int i = -newf->first_statement;
if (i >= pr->numbuiltins || !pr->builtins[i]
|| !pr->builtins[i]->proc)
PR_RunError (pr, "Bad builtin call number");
pr->builtins[i]->proc (pr);
} else {
PR_EnterFunction (pr, newf);
}
st = pr->pr_statements + pr->pr_xstatement;
break;
case OP_DONE:
case OP_RETURN:
if (!st->a)
memset (&R_INT (pr), 0,
pr->pr_param_size * sizeof (OPA));
else if (&R_INT (pr) != &OPA.integer_var)
memcpy (&R_INT (pr), &OPA,
pr->pr_param_size * sizeof (OPA));
PR_LeaveFunction (pr);
st = pr->pr_statements + pr->pr_xstatement;
if (pr->pr_depth == exitdepth) {
Sys_PopSignalHook ();
return; // all done
}
break;
case OP_STATE:
ed = PROG_TO_EDICT (pr, *pr->globals.self);
ed->v[pr->fields.nextthink].float_var = *pr->globals.time +
0.1;
ed->v[pr->fields.frame].float_var = OPA.float_var;
ed->v[pr->fields.think].func_var = OPB.func_var;
break;
case OP_ADD_I:
OPC.integer_var = OPA.integer_var + OPB.integer_var;
break;
case OP_SUB_I:
OPC.integer_var = OPA.integer_var - OPB.integer_var;
break;
case OP_MUL_I:
OPC.integer_var = OPA.integer_var * OPB.integer_var;
break;
/*
case OP_DIV_VF:
{
float temp = 1.0f / OPB.float_var;
VectorScale (OPA.vector_var, temp, OPC.vector_var);
}
break;
*/
case OP_DIV_I:
OPC.integer_var = OPA.integer_var / OPB.integer_var;
break;
case OP_MOD_I:
OPC.integer_var = OPA.integer_var % OPB.integer_var;
break;
case OP_MOD_F:
OPC.float_var = (int) OPA.float_var % (int) OPB.float_var;
break;
case OP_CONV_IF:
OPC.float_var = OPA.integer_var;
break;
case OP_CONV_FI:
OPC.integer_var = OPA.float_var;
break;
case OP_BITAND_I:
case OP_BITAND_U:
OPC.integer_var = OPA.integer_var & OPB.integer_var;
break;
case OP_BITOR_I:
case OP_BITOR_U:
OPC.integer_var = OPA.integer_var | OPB.integer_var;
break;
case OP_BITXOR_I:
case OP_BITXOR_U:
OPC.integer_var = OPA.integer_var ^ OPB.integer_var;
break;
case OP_BITNOT_I:
case OP_BITNOT_U:
OPC.integer_var = ~OPA.integer_var;
break;
case OP_ADD_U:
OPC.uinteger_var = OPA.uinteger_var + OPB.uinteger_var;
break;
case OP_SUB_U:
OPC.uinteger_var = OPA.uinteger_var - OPB.uinteger_var;
break;
case OP_MUL_U:
OPC.uinteger_var = OPA.uinteger_var * OPB.uinteger_var;
break;
case OP_DIV_U:
OPC.uinteger_var = OPA.uinteger_var / OPB.uinteger_var;
break;
case OP_MOD_U:
OPC.uinteger_var = OPA.uinteger_var % OPB.uinteger_var;
break;
case OP_CONV_IU:
OPC.uinteger_var = OPA.integer_var;
break;
case OP_CONV_UI:
OPC.integer_var = OPA.uinteger_var;
break;
case OP_GE_I:
case OP_GE_U:
case OP_GE_P:
OPC.integer_var = OPA.integer_var >= OPB.integer_var;
break;
case OP_LE_I:
case OP_LE_U:
case OP_LE_P:
OPC.integer_var = OPA.integer_var <= OPB.integer_var;
break;
case OP_GT_I:
case OP_GT_U:
case OP_GT_P:
OPC.integer_var = OPA.integer_var > OPB.integer_var;
break;
case OP_LT_I:
case OP_LT_U:
case OP_LT_P:
OPC.integer_var = OPA.uinteger_var < OPB.uinteger_var;
break;
case OP_AND_I:
case OP_AND_U:
OPC.integer_var = OPA.integer_var && OPB.integer_var;
break;
case OP_OR_I:
case OP_OR_U:
OPC.integer_var = OPA.integer_var || OPB.integer_var;
break;
case OP_NOT_I:
case OP_NOT_U:
case OP_NOT_P:
OPC.integer_var = !OPA.integer_var;
break;
case OP_EQ_I:
case OP_EQ_U:
case OP_EQ_P:
OPC.integer_var = OPA.integer_var == OPB.integer_var;
break;
case OP_NE_I:
case OP_NE_U:
case OP_NE_P:
OPC.integer_var = OPA.integer_var != OPB.integer_var;
break;
case OP_MOVE:
memmove (&OPC, &OPA, st->b * 4);
break;
case OP_MOVEP:
memmove (pr->pr_globals + OPC.integer_var,
pr->pr_globals + OPA.integer_var,
OPB.uinteger_var * 4);
break;
// LordHavoc: to be enabled when Progs version 7 (or whatever it will be numbered) is finalized
/*
case OP_BOUNDCHECK:
if (OPA.integer_var < 0 || OPA.integer_var >= st->b) {
PR_RunError (pr, "Progs boundcheck failed at line number "
"%d, value is < 0 or >= %d", st->b, st->c);
}
break;
*/
default:
PR_RunError (pr, "Bad opcode %i", st->op);
}
}
}
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