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M8 Motorino Game Board

The M8 Game Board combines a TMS9918A Video Display Processor (VDP), dual Phillips SAA1099P sound synthesizers, and dual joystick inputs.

https://github.com/KenWillmott/M8-Game-Board

M8 Game Board Wiki:
https://github.com/KenWillmott/M8-Game-Board/wiki

I/O Memory Map R/W IC
00-07 R/W TMS9918A
08-0F R HCT541
W SAA1099P A
18-1F R HCT541
W SAA1099P B

Bit 0 of each HCT541 is a read of the corresponding synth's DTACK pin for polling when using slower commands.

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