SN76489 Support for Sega Mega Drive MIDI Interface

Finally, I've had a chance to add support for the SN76489 PSG chip in the Sega Mega Drive for my MIDI interface. The thing I love about the Mega Drive is the FM sound (which is why I've been concentrating on that), but of course everyone wants access to the PSG as well. The SN76489 support is basically a port from my Sega Master System MIDI interface, and includes many (but not all) of the latter's functions and features. Currently the MIDI channel mapping is as follows:

1 - YM2612 FM channel 1
2 - YM2612 FM channel 2
3 - YM2612 FM channel 3
4 - YM2612 FM channel 4
5 - YM2612 FM channel 5
6 - YM2612 FM channel 6
7 - SN76489 PSG PU1
8 - SN76489 PSG PU2
9 - SN76489 PSG PU3
10 - SN76489 PSG NOI

As I often say with these sorts of updates, join the Gen/MDM Google Announcements Group to be notified of when this device will be available.