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prvm_execprogram.h
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extern cvar_t prvm_garbagecollection_enable;
int i;
prvm_uint_t addr, ofs;
prvm_eval_t *src;
// NEED to reset startst after calling this! startst may or may not be clobbered!
#define ADVANCE_PROFILE_BEFORE_JUMP() \
prog->xfunction->profile += (st - startst); \
if (prvm_statementprofiling.integer || (prvm_coverage.integer & 4)) { \
/* All statements from startst+1 to st have been hit. */ \
while (++startst <= st) { \
if (prog->statement_profile[startst - cached_statements]++ == 0 && (prvm_coverage.integer & 4)) \
PRVM_StatementCoverageEvent(prog, prog->xfunction, startst - cached_statements); \
} \
/* Observe: startst now is clobbered (now at st+1)! */ \
}
#ifdef PRVMTIMEPROFILING
#define PRE_ERROR() \
ADVANCE_PROFILE_BEFORE_JUMP(); \
prog->xstatement = st - cached_statements; \
tm = Sys_DirtyTime(); \
prog->xfunction->tprofile += (tm - starttm >= 0 && tm - starttm < 1800) ? (tm - starttm) : 0; \
startst = st; \
starttm = tm
#else
#define PRE_ERROR() \
ADVANCE_PROFILE_BEFORE_JUMP(); \
prog->xstatement = st - cached_statements; \
startst = st
#endif
// This code isn't #ifdef/#define protectable, don't try.
#if HAVE_COMPUTED_GOTOS && !(PRVMSLOWINTERPRETER || PRVMTIMEPROFILING)
// NOTE: Due to otherwise duplicate labels, only ONE interpreter path may
// ever hit this!
# define USE_COMPUTED_GOTOS 1
#endif
#if USE_COMPUTED_GOTOS
// Must exactly match opcode_e enum in pr_comp.h
static const void *dispatchtable[] = {
&&handle_OP_DONE,
&&handle_OP_MUL_F,
&&handle_OP_MUL_V,
&&handle_OP_MUL_FV,
&&handle_OP_MUL_VF,
&&handle_OP_DIV_F,
&&handle_OP_ADD_F,
&&handle_OP_ADD_V,
&&handle_OP_SUB_F,
&&handle_OP_SUB_V,
&&handle_OP_EQ_F,
&&handle_OP_EQ_V,
&&handle_OP_EQ_S,
&&handle_OP_EQ_E,
&&handle_OP_EQ_FNC,
&&handle_OP_NE_F,
&&handle_OP_NE_V,
&&handle_OP_NE_S,
&&handle_OP_NE_E,
&&handle_OP_NE_FNC,
&&handle_OP_LE_F,
&&handle_OP_GE_F,
&&handle_OP_LT_F,
&&handle_OP_GT_F,
&&handle_OP_LOAD_F,
&&handle_OP_LOAD_V,
&&handle_OP_LOAD_S,
&&handle_OP_LOAD_ENT,
&&handle_OP_LOAD_FLD,
&&handle_OP_LOAD_FNC,
&&handle_OP_ADDRESS,
&&handle_OP_STORE_F,
&&handle_OP_STORE_V,
&&handle_OP_STORE_S,
&&handle_OP_STORE_ENT,
&&handle_OP_STORE_FLD,
&&handle_OP_STORE_FNC,
&&handle_OP_STOREP_F,
&&handle_OP_STOREP_V,
&&handle_OP_STOREP_S,
&&handle_OP_STOREP_ENT,
&&handle_OP_STOREP_FLD,
&&handle_OP_STOREP_FNC,
&&handle_OP_RETURN,
&&handle_OP_NOT_F,
&&handle_OP_NOT_V,
&&handle_OP_NOT_S,
&&handle_OP_NOT_ENT,
&&handle_OP_NOT_FNC,
&&handle_OP_IF,
&&handle_OP_IFNOT,
&&handle_OP_CALL0,
&&handle_OP_CALL1,
&&handle_OP_CALL2,
&&handle_OP_CALL3,
&&handle_OP_CALL4,
&&handle_OP_CALL5,
&&handle_OP_CALL6,
&&handle_OP_CALL7,
&&handle_OP_CALL8,
&&handle_OP_STATE,
&&handle_OP_GOTO,
&&handle_OP_AND_F,
&&handle_OP_OR_F,
&&handle_OP_BITAND_F,
&&handle_OP_BITOR_F,
NULL,
NULL,
NULL,
NULL,
NULL,
NULL,
NULL,
NULL,
NULL,
NULL,
NULL,
NULL,
NULL,
NULL,
NULL,
NULL,
NULL,
NULL,
NULL,
NULL,
NULL,
NULL,
NULL,
NULL,
NULL,
NULL,
NULL,
NULL,
NULL,
NULL,
NULL,
NULL,
NULL,
NULL,
NULL,
NULL,
NULL,
NULL,
NULL,
NULL,
NULL,
NULL,
NULL,
NULL,
NULL,
NULL,
NULL,
&&handle_OP_STORE_I,
NULL,
NULL,
&&handle_OP_ADD_I,
&&handle_OP_ADD_FI,
&&handle_OP_ADD_IF,
&&handle_OP_SUB_I,
&&handle_OP_SUB_FI,
&&handle_OP_SUB_IF,
&&handle_OP_CONV_ITOF,
&&handle_OP_CONV_FTOI,
NULL,
NULL,
&&handle_OP_LOAD_I,
&&handle_OP_STOREP_I,
NULL,
NULL,
&&handle_OP_BITAND_I,
&&handle_OP_BITOR_I,
&&handle_OP_MUL_I,
&&handle_OP_DIV_I,
&&handle_OP_EQ_I,
&&handle_OP_NE_I,
NULL,
NULL,
&&handle_OP_NOT_I,
&&handle_OP_DIV_VF,
NULL,
&&handle_OP_RSHIFT_I,
&&handle_OP_LSHIFT_I,
&&handle_OP_GLOBALADDRESS,
&&handle_OP_ADD_PIW,
&&handle_OP_LOADA_F,
&&handle_OP_LOADA_V,
&&handle_OP_LOADA_S,
&&handle_OP_LOADA_ENT,
&&handle_OP_LOADA_FLD,
&&handle_OP_LOADA_FNC,
&&handle_OP_LOADA_I,
&&handle_OP_STORE_P,
&&handle_OP_LOAD_P,
&&handle_OP_LOADP_F,
&&handle_OP_LOADP_V,
&&handle_OP_LOADP_S,
&&handle_OP_LOADP_ENT,
&&handle_OP_LOADP_FLD,
&&handle_OP_LOADP_FNC,
&&handle_OP_LOADP_I,
&&handle_OP_LE_I,
&&handle_OP_GE_I,
&&handle_OP_LT_I,
&&handle_OP_GT_I,
&&handle_OP_LE_IF,
&&handle_OP_GE_IF,
&&handle_OP_LT_IF,
&&handle_OP_GT_IF,
&&handle_OP_LE_FI,
&&handle_OP_GE_FI,
&&handle_OP_LT_FI,
&&handle_OP_GT_FI,
&&handle_OP_EQ_IF,
&&handle_OP_EQ_FI,
NULL,
NULL,
NULL,
NULL,
&&handle_OP_MUL_IF,
&&handle_OP_MUL_FI,
&&handle_OP_MUL_VI,
NULL,
&&handle_OP_DIV_IF,
&&handle_OP_DIV_FI,
&&handle_OP_BITAND_IF,
&&handle_OP_BITOR_IF,
&&handle_OP_BITAND_FI,
&&handle_OP_BITOR_FI,
&&handle_OP_AND_I,
&&handle_OP_OR_I,
&&handle_OP_AND_IF,
&&handle_OP_OR_IF,
&&handle_OP_AND_FI,
&&handle_OP_OR_FI,
&&handle_OP_NE_IF,
&&handle_OP_NE_FI,
&&handle_OP_GSTOREP_I,
&&handle_OP_GSTOREP_F,
&&handle_OP_GSTOREP_ENT,
&&handle_OP_GSTOREP_FLD,
&&handle_OP_GSTOREP_S,
&&handle_OP_GSTOREP_FNC,
&&handle_OP_GSTOREP_V,
&&handle_OP_GADDRESS,
&&handle_OP_GLOAD_I,
&&handle_OP_GLOAD_F,
&&handle_OP_GLOAD_FLD,
&&handle_OP_GLOAD_ENT,
&&handle_OP_GLOAD_S,
&&handle_OP_GLOAD_FNC,
&&handle_OP_BOUNDCHECK,
NULL,
NULL,
NULL,
NULL,
&&handle_OP_GLOAD_V,
NULL,
NULL,
NULL,
NULL,
NULL,
NULL,
NULL,
NULL,
&&handle_OP_LE_U,
&&handle_OP_LT_U,
&&handle_OP_DIV_U,
&&handle_OP_RSHIFT_U,
};
#define DISPATCH_OPCODE() \
goto *dispatchtable[(++st)->op]
#define HANDLE_OPCODE(opcode) handle_##opcode
DISPATCH_OPCODE(); // jump to first opcode
#else // USE_COMPUTED_GOTOS
#define DISPATCH_OPCODE() break
#define HANDLE_OPCODE(opcode) case opcode
#if PRVMSLOWINTERPRETER
{
if (prog->watch_global_type != ev_void)
{
prvm_eval_t *g = PRVM_GLOBALFIELDVALUE(prog->watch_global);
prog->xstatement = st + 1 - cached_statements;
PRVM_Watchpoint(prog, 1, "Global watchpoint hit by engine", prog->watch_global_type, &prog->watch_global_value, g);
}
if (prog->watch_field_type != ev_void && prog->watch_edict < prog->max_edicts)
{
prvm_eval_t *g = PRVM_EDICTFIELDVALUE(prog->edicts + prog->watch_edict, prog->watch_field);
prog->xstatement = st + 1 - cached_statements;
PRVM_Watchpoint(prog, 1, "Entityfield watchpoint hit by engine", prog->watch_field_type, &prog->watch_edictfield_value, g);
}
}
#endif
while (1)
{
st++;
#endif // USE_COMPUTED_GOTOS
#if !USE_COMPUTED_GOTOS
#if PRVMSLOWINTERPRETER
if (prog->trace)
PRVM_PrintStatement(prog, st);
if (prog->break_statement >= 0)
if ((st - cached_statements) == prog->break_statement)
{
prog->xstatement = st - cached_statements;
PRVM_Breakpoint(prog, prog->break_stack_index, "Breakpoint hit");
}
#endif
switch (st->op)
{
#endif
HANDLE_OPCODE(OP_ADD_F):
OPC->_float = OPA->_float + OPB->_float;
DISPATCH_OPCODE();
HANDLE_OPCODE(OP_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];
DISPATCH_OPCODE();
HANDLE_OPCODE(OP_SUB_F):
OPC->_float = OPA->_float - OPB->_float;
DISPATCH_OPCODE();
HANDLE_OPCODE(OP_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];
DISPATCH_OPCODE();
HANDLE_OPCODE(OP_MUL_F):
OPC->_float = OPA->_float * OPB->_float;
DISPATCH_OPCODE();
HANDLE_OPCODE(OP_MUL_V):
OPC->_float = OPA->vector[0]*OPB->vector[0] + OPA->vector[1]*OPB->vector[1] + OPA->vector[2]*OPB->vector[2];
DISPATCH_OPCODE();
HANDLE_OPCODE(OP_MUL_FV):
tempfloat = OPA->_float;
OPC->vector[0] = tempfloat * OPB->vector[0];
OPC->vector[1] = tempfloat * OPB->vector[1];
OPC->vector[2] = tempfloat * OPB->vector[2];
DISPATCH_OPCODE();
HANDLE_OPCODE(OP_MUL_VF):
tempfloat = OPB->_float;
OPC->vector[0] = tempfloat * OPA->vector[0];
OPC->vector[1] = tempfloat * OPA->vector[1];
OPC->vector[2] = tempfloat * OPA->vector[2];
DISPATCH_OPCODE();
HANDLE_OPCODE(OP_DIV_F):
if( OPB->_float == 0.0f )
{
PRE_ERROR();
VM_Warning(prog, "Attempted division of %f by zero\n", OPA->_float);
if (prvm_gameplayfix_div0is0.integer)
{
OPC->_float = 0;
DISPATCH_OPCODE();
}
}
OPC->_float = OPA->_float / OPB->_float;
DISPATCH_OPCODE();
HANDLE_OPCODE(OP_BITAND_F):
OPC->_float = (prvm_int_t)OPA->_float & (prvm_int_t)OPB->_float;
DISPATCH_OPCODE();
HANDLE_OPCODE(OP_BITOR_F):
OPC->_float = (prvm_int_t)OPA->_float | (prvm_int_t)OPB->_float;
DISPATCH_OPCODE();
HANDLE_OPCODE(OP_GE_F):
OPC->_float = OPA->_float >= OPB->_float;
DISPATCH_OPCODE();
HANDLE_OPCODE(OP_LE_F):
OPC->_float = OPA->_float <= OPB->_float;
DISPATCH_OPCODE();
HANDLE_OPCODE(OP_GT_F):
OPC->_float = OPA->_float > OPB->_float;
DISPATCH_OPCODE();
HANDLE_OPCODE(OP_LT_F):
OPC->_float = OPA->_float < OPB->_float;
DISPATCH_OPCODE();
HANDLE_OPCODE(OP_AND_F):
OPC->_float = PRVM_FLOAT_IS_TRUE_FOR_INT(OPA->_int) && PRVM_FLOAT_IS_TRUE_FOR_INT(OPB->_int); // TODO change this back to float, and add AND_I to be used by fteqcc for anything not a float
DISPATCH_OPCODE();
HANDLE_OPCODE(OP_OR_F):
OPC->_float = PRVM_FLOAT_IS_TRUE_FOR_INT(OPA->_int) || PRVM_FLOAT_IS_TRUE_FOR_INT(OPB->_int); // TODO change this back to float, and add OR_I to be used by fteqcc for anything not a float
DISPATCH_OPCODE();
HANDLE_OPCODE(OP_NOT_F):
OPC->_float = !PRVM_FLOAT_IS_TRUE_FOR_INT(OPA->_int);
DISPATCH_OPCODE();
HANDLE_OPCODE(OP_NOT_V):
OPC->_float = !OPA->vector[0] && !OPA->vector[1] && !OPA->vector[2];
DISPATCH_OPCODE();
HANDLE_OPCODE(OP_NOT_S):
OPC->_float = !OPA->string || !*PRVM_GetString(prog, OPA->string);
DISPATCH_OPCODE();
HANDLE_OPCODE(OP_NOT_FNC):
OPC->_float = !OPA->function;
DISPATCH_OPCODE();
HANDLE_OPCODE(OP_NOT_ENT):
OPC->_float = (OPA->edict == 0);
DISPATCH_OPCODE();
HANDLE_OPCODE(OP_EQ_F):
OPC->_float = OPA->_float == OPB->_float;
DISPATCH_OPCODE();
HANDLE_OPCODE(OP_EQ_V):
OPC->_float = (OPA->vector[0] == OPB->vector[0]) && (OPA->vector[1] == OPB->vector[1]) && (OPA->vector[2] == OPB->vector[2]);
DISPATCH_OPCODE();
HANDLE_OPCODE(OP_EQ_S):
OPC->_float = !strcmp(PRVM_GetString(prog, OPA->string),PRVM_GetString(prog, OPB->string));
DISPATCH_OPCODE();
HANDLE_OPCODE(OP_EQ_E):
OPC->_float = OPA->_int == OPB->_int;
DISPATCH_OPCODE();
HANDLE_OPCODE(OP_EQ_FNC):
OPC->_float = OPA->function == OPB->function;
DISPATCH_OPCODE();
HANDLE_OPCODE(OP_NE_F):
OPC->_float = OPA->_float != OPB->_float;
DISPATCH_OPCODE();
HANDLE_OPCODE(OP_NE_V):
OPC->_float = (OPA->vector[0] != OPB->vector[0]) || (OPA->vector[1] != OPB->vector[1]) || (OPA->vector[2] != OPB->vector[2]);
DISPATCH_OPCODE();
HANDLE_OPCODE(OP_NE_S):
OPC->_float = strcmp(PRVM_GetString(prog, OPA->string),PRVM_GetString(prog, OPB->string));
DISPATCH_OPCODE();
HANDLE_OPCODE(OP_NE_E):
OPC->_float = OPA->_int != OPB->_int;
DISPATCH_OPCODE();
HANDLE_OPCODE(OP_NE_FNC):
OPC->_float = OPA->function != OPB->function;
DISPATCH_OPCODE();
//==================
HANDLE_OPCODE(OP_STORE_F):
HANDLE_OPCODE(OP_STORE_ENT):
HANDLE_OPCODE(OP_STORE_FLD): // integers
HANDLE_OPCODE(OP_STORE_FNC): // pointers
OPB->_int = OPA->_int;
DISPATCH_OPCODE();
HANDLE_OPCODE(OP_STORE_S):
// refresh the garbage collection on the string - this guards
// against a certain sort of repeated migration to earlier
// points in the scan that could otherwise result in the string
// being freed for being unused
if(prvm_garbagecollection_enable.integer)
PRVM_GetString(prog, OPA->_int);
OPB->_int = OPA->_int;
DISPATCH_OPCODE();
HANDLE_OPCODE(OP_STORE_V):
OPB->ivector[0] = OPA->ivector[0];
OPB->ivector[1] = OPA->ivector[1];
OPB->ivector[2] = OPA->ivector[2];
DISPATCH_OPCODE();
HANDLE_OPCODE(OP_STOREP_F):
HANDLE_OPCODE(OP_STOREP_ENT):
HANDLE_OPCODE(OP_STOREP_FLD): // integers
HANDLE_OPCODE(OP_STOREP_FNC): // pointers
addr = OPB->_uint + OPC->_uint;
if ((ofs = addr - cached_vmentity1start) < cached_entityfieldsarea_entityfields)
{
// OK entity write.
ptr = (prvm_eval_t *)(cached_edictsfields_entity1 + ofs);
}
else if ((ofs = addr - cached_vmglobal1) < cached_vmglobals_1)
{
// OK global write.
ptr = (prvm_eval_t *)(global1 + ofs);
}
else if ((ofs = addr - cached_vmentity0start) < cached_entityfields)
{
if (!cached_allowworldwrites)
{
PRE_ERROR();
VM_Warning(prog, "Attempted assignment to world.%s (edictnum 0 field %"PRVM_PRIi"+%"PRVM_PRIi")\n", PRVM_GetString(prog, PRVM_ED_FieldAtOfs(prog, ofs)->s_name), OPB->_int, OPC->_int);
// Perform entity write anyway.
}
ptr = (prvm_eval_t *)(cached_edictsfields + ofs);
}
else
{
PRE_ERROR();
prog->error_cmd("%s attempted to write to an out of bounds address %"PRVM_PRIu"+%"PRVM_PRIi"", prog->name, OPB->_uint, OPC->_int);
goto cleanup;
}
ptr->_int = OPA->_int;
DISPATCH_OPCODE();
HANDLE_OPCODE(OP_STOREP_S):
addr = OPB->_uint + OPC->_uint;
if ((ofs = addr - cached_vmentity1start) < cached_entityfieldsarea_entityfields)
{
// OK entity write.
ptr = (prvm_eval_t *)(cached_edictsfields_entity1 + ofs);
}
else if ((ofs = addr - cached_vmglobal1) < cached_vmglobals_1)
{
// OK global write.
ptr = (prvm_eval_t *)(global1 + ofs);
}
else if ((ofs = addr - cached_vmentity0start) < cached_entityfields)
{
if (!cached_allowworldwrites)
{
PRE_ERROR();
VM_Warning(prog, "Attempted assignment to world.%s (edictnum 0 field %"PRVM_PRIi"+%"PRVM_PRIi")\n", PRVM_GetString(prog, PRVM_ED_FieldAtOfs(prog, ofs)->s_name), OPB->_int, OPC->_int);
// Perform entity write anyway.
}
ptr = (prvm_eval_t *)(cached_edictsfields + ofs);
}
else
{
PRE_ERROR();
prog->error_cmd("%s attempted to write to an out of bounds address %"PRVM_PRIu"+%"PRVM_PRIi"", prog->name, OPB->_uint, OPC->_int);
goto cleanup;
}
// refresh the garbage collection on the string - this guards
// against a certain sort of repeated migration to earlier
// points in the scan that could otherwise result in the string
// being freed for being unused
if(prvm_garbagecollection_enable.integer)
PRVM_GetString(prog, OPA->_int);
ptr->_int = OPA->_int;
DISPATCH_OPCODE();
HANDLE_OPCODE(OP_STOREP_V):
addr = OPB->_uint + OPC->_uint;
if ((ofs = addr - cached_vmentity1start) < cached_entityfieldsarea_entityfields_2)
{
// OK entity write.
ptr = (prvm_eval_t *)(cached_edictsfields_entity1 + ofs);
}
else if ((ofs = addr - cached_vmglobal1) < cached_vmglobals_3)
{
// OK global write.
ptr = (prvm_eval_t *)(global1 + ofs);
}
else if ((ofs = addr - cached_vmentity0start) < cached_entityfields_2)
{
if (!cached_allowworldwrites)
{
PRE_ERROR();
VM_Warning(prog, "Attempted assignment to world.%s (edictnum 0 field %"PRVM_PRIi"+%"PRVM_PRIi")\n", PRVM_GetString(prog, PRVM_ED_FieldAtOfs(prog, ofs)->s_name), OPB->_int, OPC->_int);
// Perform entity write anyway.
}
ptr = (prvm_eval_t *)(cached_edictsfields + ofs);
}
else
{
PRE_ERROR();
prog->error_cmd("%s attempted to write to an out of bounds address %"PRVM_PRIu"+%"PRVM_PRIi"", prog->name, OPB->_uint, OPC->_int);
goto cleanup;
}
ptr->ivector[0] = OPA->ivector[0];
ptr->ivector[1] = OPA->ivector[1];
ptr->ivector[2] = OPA->ivector[2];
DISPATCH_OPCODE();
HANDLE_OPCODE(OP_ADDRESS):
if ((prvm_uint_t)OPA->edict >= cached_max_edicts)
{
PRE_ERROR();
prog->error_cmd("%s attempted to address an out of bounds edict number", prog->name);
goto cleanup;
}
if (OPB->_uint >= cached_entityfields)
{
PRE_ERROR();
prog->error_cmd("%s attempted to address an invalid field (%"PRVM_PRIu") in an edict", prog->name, OPB->_uint);
goto cleanup;
}
#if 0
if (OPA->edict == 0 && !cached_allowworldwrites)
{
PRE_ERROR();
prog->error_cmd("Forbidden assignment to world (edictnum 0) in %s", prog->name);
goto cleanup;
}
#endif
OPC->_int = cached_vmentity0start + OPA->edict * cached_entityfields + OPB->_int;
DISPATCH_OPCODE();
HANDLE_OPCODE(OP_LOAD_F):
HANDLE_OPCODE(OP_LOAD_FLD):
HANDLE_OPCODE(OP_LOAD_ENT):
HANDLE_OPCODE(OP_LOAD_FNC):
HANDLE_OPCODE(OP_LOAD_P):
if ((prvm_uint_t)OPA->edict >= cached_max_edicts)
{
PRE_ERROR();
prog->error_cmd("%s attempted to read an out of bounds edict number", prog->name);
goto cleanup;
}
if (OPB->_uint >= cached_entityfields)
{
PRE_ERROR();
prog->error_cmd("%s attempted to read an invalid field in an edict (%"PRVM_PRIu")", prog->name, OPB->_uint);
goto cleanup;
}
ed = PRVM_PROG_TO_EDICT(OPA->edict);
OPC->_int = ((prvm_eval_t *)(ed->fields.ip + OPB->_int))->_int;
DISPATCH_OPCODE();
HANDLE_OPCODE(OP_LOAD_S):
if ((prvm_uint_t)OPA->edict >= cached_max_edicts)
{
PRE_ERROR();
prog->error_cmd("%s attempted to read an out of bounds edict number", prog->name);
goto cleanup;
}
if (OPB->_uint >= cached_entityfields)
{
PRE_ERROR();
prog->error_cmd("%s attempted to read an invalid field in an edict (%"PRVM_PRIu")", prog->name, OPB->_uint);
goto cleanup;
}
ed = PRVM_PROG_TO_EDICT(OPA->edict);
OPC->_int = ((prvm_eval_t *)(ed->fields.ip + OPB->_int))->_int;
// refresh the garbage collection on the string - this guards
// against a certain sort of repeated migration to earlier
// points in the scan that could otherwise result in the string
// being freed for being unused
if(prvm_garbagecollection_enable.integer)
PRVM_GetString(prog, OPC->_int);
DISPATCH_OPCODE();
HANDLE_OPCODE(OP_LOAD_V):
if ((prvm_uint_t)OPA->edict >= cached_max_edicts)
{
PRE_ERROR();
prog->error_cmd("%s attempted to read an out of bounds edict number", prog->name);
goto cleanup;
}
if (OPB->_uint >= cached_entityfields_2)
{
PRE_ERROR();
prog->error_cmd("%s attempted to read an invalid field in an edict (%"PRVM_PRIu")", prog->name, OPB->_uint);
goto cleanup;
}
ed = PRVM_PROG_TO_EDICT(OPA->edict);
ptr = (prvm_eval_t *)(ed->fields.ip + OPB->_int);
OPC->ivector[0] = ptr->ivector[0];
OPC->ivector[1] = ptr->ivector[1];
OPC->ivector[2] = ptr->ivector[2];
DISPATCH_OPCODE();
//==================
HANDLE_OPCODE(OP_IFNOT):
//spike FIXME -- dp redefined IFNOT[_I] as IFNOT_F, which breaks if(0x80000000)
//spike FIXME -- you should add separate IFNOT_I/IFNOT_F opcodes and remap IFNOT_I to ITNOT_F in v6 progs for compat.
if(!FLOAT_IS_TRUE_FOR_INT(OPA->_int))
// TODO add an "int-if", and change this one to OPA->_float
// although mostly unneeded, thanks to the only float being false being 0x0 and 0x80000000 (negative zero)
// and entity, string, field values can never have that value
{
ADVANCE_PROFILE_BEFORE_JUMP();
st += st->operand[1] - 1; // offset the st++
startst = st;
// no bounds check needed, it is done when loading progs
if (++jumpcount == 10000000 && prvm_runawaycheck)
{
prog->xstatement = st - cached_statements;
PRVM_Profile(prog, 1<<30, 1000000, 0);
prog->error_cmd("%s runaway loop counter hit limit of %d jumps\ntip: read above for list of most-executed functions", prog->name, jumpcount);
}
}
DISPATCH_OPCODE();
HANDLE_OPCODE(OP_IF):
//spike FIXME -- dp redefined IF[_I] as IF_F
// TODO: plan is:
// - Add IF_F, IFNOT_F.
// - Rename this to IF_I, IFNOT_I.
// - Add sv_gameplayfix variable to remap IF_I and IFNOT_I to IF_F and IFNOT_F on progs load.
// - Define this fix for Nexuiz.
// - Add generation of IF_F, IFNOT_F instructions to gmqcc.
// - Move Xonotic to that.
if(FLOAT_IS_TRUE_FOR_INT(OPA->_int))
// TODO add an "int-if", and change this one, as well as the FLOAT_IS_TRUE_FOR_INT usages, to OPA->_float
// although mostly unneeded, thanks to the only float being false being 0x0 and 0x80000000 (negative zero)
// and entity, string, field values can never have that value
{
ADVANCE_PROFILE_BEFORE_JUMP();
st += st->operand[1] - 1; // offset the st++
startst = st;
// no bounds check needed, it is done when loading progs
if (++jumpcount == 10000000 && prvm_runawaycheck)
{
prog->xstatement = st - cached_statements;
PRVM_Profile(prog, 1<<30, 0.01, 0);
prog->error_cmd("%s runaway loop counter hit limit of %d jumps\ntip: read above for list of most-executed functions", prog->name, jumpcount);
}
}
DISPATCH_OPCODE();
HANDLE_OPCODE(OP_GOTO):
ADVANCE_PROFILE_BEFORE_JUMP();
st += st->operand[0] - 1; // offset the st++
startst = st;
// no bounds check needed, it is done when loading progs
if (++jumpcount == 10000000 && prvm_runawaycheck)
{
prog->xstatement = st - cached_statements;
PRVM_Profile(prog, 1<<30, 0.01, 0);
prog->error_cmd("%s runaway loop counter hit limit of %d jumps\ntip: read above for list of most-executed functions", prog->name, jumpcount);
}
DISPATCH_OPCODE();
HANDLE_OPCODE(OP_CALL0):
HANDLE_OPCODE(OP_CALL1):
HANDLE_OPCODE(OP_CALL2):
HANDLE_OPCODE(OP_CALL3):
HANDLE_OPCODE(OP_CALL4):
HANDLE_OPCODE(OP_CALL5):
HANDLE_OPCODE(OP_CALL6):
HANDLE_OPCODE(OP_CALL7):
HANDLE_OPCODE(OP_CALL8):
#ifdef PRVMTIMEPROFILING
tm = Sys_DirtyTime();
prog->xfunction->tprofile += (tm - starttm >= 0 && tm - starttm < 1800) ? (tm - starttm) : 0;
starttm = tm;
#endif
ADVANCE_PROFILE_BEFORE_JUMP();
startst = st;
prog->xstatement = st - cached_statements;
prog->argc = st->op - OP_CALL0;
if (!OPA->function)
{
prog->error_cmd("NULL function in %s", prog->name);
}
if(!OPA->function || OPA->function < 0 || OPA->function >= prog->numfunctions)
{
PRE_ERROR();
prog->error_cmd("%s attempted CALL outside the program", prog->name);
goto cleanup;
}
enterfunc = &prog->functions[OPA->function];
if (enterfunc->callcount++ == 0 && (prvm_coverage.integer & 1))
PRVM_FunctionCoverageEvent(prog, enterfunc);
if (enterfunc->first_statement < 0)
{
// negative first_statement values are built in functions
int builtinnumber = -enterfunc->first_statement;
prog->xfunction->builtinsprofile++;
if (builtinnumber < prog->numbuiltins && prog->builtins[builtinnumber])
{
prog->builtins[builtinnumber](prog);
#ifdef PRVMTIMEPROFILING
tm = Sys_DirtyTime();
enterfunc->tprofile += (tm - starttm >= 0 && tm - starttm < 1800) ? (tm - starttm) : 0;
prog->xfunction->tbprofile += (tm - starttm >= 0 && tm - starttm < 1800) ? (tm - starttm) : 0;
starttm = tm;
#endif
// builtins may cause ED_Alloc() to be called, update cached variables
CACHE_CHANGING(NO_DECLARE);
// these do not change
//cached_statements = prog->statements;
//cached_allowworldwrites = prog->allowworldwrites;
//cached_flag = prog->flag;
// if prog->trace changed we need to change interpreter path
if (prog->trace != cachedpr_trace)
goto chooseexecprogram;
}
else
prog->error_cmd("No such builtin #%i in %s. This program is corrupt or incompatible with DarkPlaces (or this version of it)", builtinnumber, prog->name);
}
else
st = cached_statements + PRVM_EnterFunction(prog, enterfunc);
startst = st;
DISPATCH_OPCODE();
HANDLE_OPCODE(OP_DONE):
HANDLE_OPCODE(OP_RETURN):
#ifdef PRVMTIMEPROFILING
tm = Sys_DirtyTime();
prog->xfunction->tprofile += (tm - starttm >= 0 && tm - starttm < 1800) ? (tm - starttm) : 0;
starttm = tm;
#endif
ADVANCE_PROFILE_BEFORE_JUMP();
prog->xstatement = st - cached_statements;
prog->globals.ip[OFS_RETURN ] = prog->globals.ip[st->operand[0] ];
prog->globals.ip[OFS_RETURN+1] = prog->globals.ip[st->operand[0]+1];
prog->globals.ip[OFS_RETURN+2] = prog->globals.ip[st->operand[0]+2];
st = cached_statements + PRVM_LeaveFunction(prog);
startst = st;
if (prog->depth <= exitdepth)
goto cleanup; // all done
DISPATCH_OPCODE();
HANDLE_OPCODE(OP_STATE):
if(cached_flag & PRVM_OP_STATE)
{
ed = PRVM_PROG_TO_EDICT(PRVM_gameglobaledict(self));
PRVM_gameedictfloat(ed,nextthink) = PRVM_gameglobalfloat(time) + 0.1;
PRVM_gameedictfloat(ed,frame) = OPA->_float;
PRVM_gameedictfunction(ed,think) = OPB->function;
}
else
{
PRE_ERROR();
prog->xstatement = st - cached_statements;
prog->error_cmd("OP_STATE not supported by %s", prog->name);
}
DISPATCH_OPCODE();
HANDLE_OPCODE(OP_ADD_I):
OPC->_int = OPA->_int + OPB->_int;
DISPATCH_OPCODE();
HANDLE_OPCODE(OP_ADD_IF):
OPC->_float = ((prvm_vec_t) OPA->_int) + OPB->_float;
DISPATCH_OPCODE();
HANDLE_OPCODE(OP_ADD_FI):
OPC->_float = OPA->_float + (prvm_vec_t) OPB->_int;
DISPATCH_OPCODE();
HANDLE_OPCODE(OP_SUB_I):
OPC->_int = OPA->_int - OPB->_int;
DISPATCH_OPCODE();
HANDLE_OPCODE(OP_SUB_IF):
OPC->_float = ((prvm_vec_t) OPA->_int) - OPB->_float;
DISPATCH_OPCODE();
HANDLE_OPCODE(OP_SUB_FI):
OPC->_float = OPA->_float - (prvm_vec_t) OPB->_int;
DISPATCH_OPCODE();
HANDLE_OPCODE(OP_MUL_I):
OPC->_int = OPA->_int * OPB->_int;
DISPATCH_OPCODE();
HANDLE_OPCODE(OP_MUL_IF):
OPC->_float = ((prvm_vec_t) OPA->_int) * OPB->_float;
DISPATCH_OPCODE();
HANDLE_OPCODE(OP_MUL_FI):
OPC->_float = OPA->_float * (prvm_vec_t) OPB->_int;
DISPATCH_OPCODE();
HANDLE_OPCODE(OP_MUL_VI):
OPC->vector[0] = (prvm_vec_t) OPB->_int * OPA->vector[0];
OPC->vector[1] = (prvm_vec_t) OPB->_int * OPA->vector[1];
OPC->vector[2] = (prvm_vec_t) OPB->_int * OPA->vector[2];
DISPATCH_OPCODE();
HANDLE_OPCODE(OP_DIV_VF):
if( OPB->_float == 0.0f )
{
PRE_ERROR();
VM_Warning(prog, "Attempted division of '%f %f %f' by zero\n", OPA->vector[0], OPA->vector[1], OPA->vector[2]);
if (prvm_gameplayfix_div0is0.integer)
{
OPC->vector[0] = 0;
OPC->vector[1] = 0;
OPC->vector[2] = 0;
DISPATCH_OPCODE();
}
}
tempfloat = OPB->_float;
OPC->vector[0] = OPA->vector[0] / tempfloat;
OPC->vector[1] = OPA->vector[1] / tempfloat;
OPC->vector[2] = OPA->vector[2] / tempfloat;
DISPATCH_OPCODE();
HANDLE_OPCODE(OP_DIV_I):
// NOTE: This also catches the second kind of division that can trap, namely, -2147483648 / -1,
// whose result is not representable as int32_t and raises the same CPU exception.
if( OPB->_int != 0 && (OPB->_int != -1 || OPA->_int != PRVM_INT_MIN) )
{
OPC->_int = OPA->_int / OPB->_int;
}
else
{
PRE_ERROR();
VM_Warning(prog, "Attempted division of %"PRVM_PRIi" by %"PRVM_PRIi"\n", OPA->_int, OPB->_int);
OPC->_int = 0;
}
DISPATCH_OPCODE();
HANDLE_OPCODE(OP_DIV_IF):
if( OPB->_float == 0.0f )
{
PRE_ERROR();
VM_Warning(prog, "Attempted division of %"PRVM_PRIi" by zero\n", OPA->_int);
if (prvm_gameplayfix_div0is0.integer)
{
OPC->_float = 0;
DISPATCH_OPCODE();
}
}
OPC->_float = ((prvm_vec_t) OPA->_int) / OPB->_float;
DISPATCH_OPCODE();
HANDLE_OPCODE(OP_DIV_FI):
if( OPB->_int == 0 )
{
PRE_ERROR();
VM_Warning(prog, "Attempted division of %f by zero\n", OPA->_float);
if (prvm_gameplayfix_div0is0.integer)
{
OPC->_float = 0;
DISPATCH_OPCODE();
}
}
OPC->_float = OPA->_float / (prvm_vec_t) OPB->_int;
DISPATCH_OPCODE();
HANDLE_OPCODE(OP_CONV_ITOF):
OPC->_float = OPA->_int;
DISPATCH_OPCODE();
HANDLE_OPCODE(OP_CONV_FTOI):
OPC->_int = OPA->_float;
DISPATCH_OPCODE();
HANDLE_OPCODE(OP_BITAND_I):
OPC->_int = OPA->_int & OPB->_int;
DISPATCH_OPCODE();
HANDLE_OPCODE(OP_BITOR_I):
OPC->_int = OPA->_int | OPB->_int;
DISPATCH_OPCODE();
HANDLE_OPCODE(OP_BITAND_IF):
OPC->_int = OPA->_int & (prvm_int_t)OPB->_float;
DISPATCH_OPCODE();
HANDLE_OPCODE(OP_BITOR_IF):
OPC->_int = OPA->_int | (prvm_int_t)OPB->_float;
DISPATCH_OPCODE();
HANDLE_OPCODE(OP_BITAND_FI):
OPC->_int = (prvm_int_t)OPA->_float & OPB->_int;
DISPATCH_OPCODE();
HANDLE_OPCODE(OP_BITOR_FI):
OPC->_int = (prvm_int_t)OPA->_float | OPB->_int;
DISPATCH_OPCODE();
HANDLE_OPCODE(OP_GE_I):
OPC->_int = OPA->_int >= OPB->_int;
DISPATCH_OPCODE();
HANDLE_OPCODE(OP_LE_I):
OPC->_int = OPA->_int <= OPB->_int;
DISPATCH_OPCODE();
HANDLE_OPCODE(OP_GT_I):
OPC->_int = OPA->_int > OPB->_int;
DISPATCH_OPCODE();
HANDLE_OPCODE(OP_LT_I):
OPC->_int = OPA->_int < OPB->_int;
DISPATCH_OPCODE();
HANDLE_OPCODE(OP_AND_I):
OPC->_int = OPA->_int && OPB->_int;
DISPATCH_OPCODE();
HANDLE_OPCODE(OP_OR_I):
OPC->_int = OPA->_int || OPB->_int;
DISPATCH_OPCODE();
HANDLE_OPCODE(OP_GE_IF):
OPC->_int = (prvm_vec_t)OPA->_int >= OPB->_float;
DISPATCH_OPCODE();
HANDLE_OPCODE(OP_LE_IF):
OPC->_int = (prvm_vec_t)OPA->_int <= OPB->_float;
DISPATCH_OPCODE();
HANDLE_OPCODE(OP_GT_IF):
OPC->_int = (prvm_vec_t)OPA->_int > OPB->_float;
DISPATCH_OPCODE();
HANDLE_OPCODE(OP_LT_IF):
OPC->_int = (prvm_vec_t)OPA->_int < OPB->_float;
DISPATCH_OPCODE();
HANDLE_OPCODE(OP_AND_IF):
OPC->_int = (prvm_vec_t)OPA->_int && OPB->_float;