// IInstructionTiming contains methods to execute the different types of machine cycle that the Z80 supports.
// These will be called mostly by the instruction decoder, stack operations and interrupt handlers, but some instruction
// microcode uses these methods directly to generate timing (eg IN/OUT) or add 'internal operation' ticks.
// I segregated these onto an interface just to keep them logically partioned from the main API but without moving them out to a class.
// Calling code can get at these methods using the Processor.Timing property (or by casting to the interface type, but don't do that, it's ugly).
#region IInstructionTiming
void IInstructionTiming.OpcodeFetchCycle(ushort address, byte data)
{
IO.SetOpcodeFetchState(address);
WaitForNextClockTick();
IO.AddOpcodeFetchData(data);
WaitForNextClockTick();
InsertWaitCycles();
IO.EndOpcodeFetchState();
IO.SetAddressBusValue(Registers.IR);
IO.SetDataBusValue(0x00);
WaitForNextClockTick();
WaitForNextClockTick();
}
