/**
* Do given Native Feature, if it is supported
* and set 'retval' accordingly.
*
* Return true if caller is to proceed normally,
* false if there was an exception.
*/
bool NatFeat_Call(Uint32 stack, bool super, Uint32 *retval)
{
Uint32 subid = STMemory_ReadLong(stack);
unsigned int idx = MASTERID2IDX(subid);
subid = MASKOUTMASTERID(subid);
if (idx >= ARRAYSIZE(features)) {
Dprintf(("ERROR: invalid NF ID %d requested\n", idx));
return true; /* undefined */
}
if (features[idx].super && !super) {
Dprintf(("ERROR: NF function %d called without supervisor mode\n", idx));
Exception(8, 0, M68000_EXC_SRC_CPU);
return false;
}
stack += SIZE_LONG;
return features[idx].cb(stack, subid, retval);
}
int32 nf_call(memptr stack, bool inSuper)
{
uint32 fncode = ReadInt32(stack);
unsigned int idx = MASTERID2IDX(fncode);
if (idx >= nf_objs_cnt) {
D(bug("nf_call: wrong ID %d", idx));
return 0; /* returning an undefined value */
}
fncode = MASKOUTMASTERID(fncode);
context = stack + 4; /* parameters follow on the stack */
NF_Base *obj = nf_objects[idx];
D(bug("nf_call(%s, %d)", obj->name(), fncode));
if (obj->isSuperOnly() && !inSuper) {
THROW(8); // privilege exception
}
return obj->dispatch(fncode);
}
/**
* Do given Native Feature, if it is supported
* and set 'retval' accordingly.
*
* Return true if caller is to proceed normally,
* false if there was an exception.
*/
bool NatFeat_Call(Uint32 stack, bool super, Uint32 *retval)
{
Uint32 subid = STMemory_ReadLong(stack);
unsigned int idx = MASTERID2IDX(subid);
subid = MASKOUTMASTERID(subid);
if (idx >= ARRAYSIZE(features)) {
LOG_TRACE(TRACE_NATFEATS, "ERROR: invalid NF ID %d requested\n", idx);
return true; /* undefined */
}
if (features[idx].super && !super) {
LOG_TRACE(TRACE_NATFEATS, "ERROR: NF function %d called without supervisor mode\n", idx);
#ifndef WINUAE_FOR_HATARI
M68000_Exception(8, M68000_EXC_SRC_CPU);
#else
M68000_Exception(8, M68000_EXC_SRC_CPU);
#endif
return false;
}
stack += SIZE_LONG;
return features[idx].cb(stack, subid, retval);
}