private void OnAddress(SymByte aByte)
{
int byteNumber = 4 - iBytesRemaining;
uint val = aByte.LShift(byteNumber * 8);
iAddress |= val;
if (--iBytesRemaining == 0)
{
// Save for tracing purposes
SymAddress originalAddress = new SymAddress(base.StateData.CurrentAddress.Address);
TArmInstructionSet originalInstructionSet = base.StateData.CurrentInstructionSet;
// Set new branch address
TArmInstructionSet newInstructionSet = iInformationByte.InstructionSet;
uint address = iAddress;
if ((address & 0x1) == 0x1)
{
// We branched to THUMB, hence change of instruction set...
address &= 0xFFFFFFFE;
newInstructionSet = TArmInstructionSet.ETHUMB;
}
// Store address etc - always 32 bit full address during I-SYNC
base.StateData.CurrentInstructionSet = newInstructionSet;
base.StateData.SetKnownAddressBits(address, 32, TETMBranchType.EBranchExplicit);
// And output debug trace...
Trace(originalAddress, originalInstructionSet, base.StateData.CurrentAddress, newInstructionSet);
// We're done
iState = TState.EStateIdle;
}
}
private void OnContextByte(SymByte aByte)
{
int byteNumber = iContextIdBytesRequired - iBytesRemaining;
uint val = aByte.LShift(byteNumber * 8);
iContextId |= val;
if (--iBytesRemaining == 0)
{
base.StateData.SetContextID(iContextId);
iState = TState.EStateInformation;
}
}
public override ETMDecodeState HandleByte(SymByte aByte)
{
// TODO: test this
ETMDecodeState nextState = this;
//
int byteNumber = iContextIdBytesRequired - iBytesRemaining;
uint val = aByte.LShift(byteNumber * 8);
iContextId |= val;
//
if (--iBytesRemaining == 0)
{
// Got everything
base.StateData.SetContextID(iContextId);
nextState = new ETMDecodeStateSynchronized(base.StateData);
}
//
return(nextState);
}