. Ultimately switched from MB(1MHz clock) to Phasor(2MHz clock) for less noisy playback.
. Fixed a bug in Cmd_00 where HL was loaded with the wrong value.
. Fixed bugs where (DE) was referencing $00nn Spectrum ROM values.
. Fixed initial state to mirror the Cybernoid game (not the AY player binary).
. Simple array of 14xAY regs written each interrupt
. First few seconds of tune showing the problem
. SPACE to single-step the playback; RETURN to resume playback
