You can see from the debugger that banks 4,5,6,7 hold the information on each digit - the first number is the actual number, the next 5 the pixel equivalent.
In other, err.... news, I've been dismantling Microvision cartridges (real ones) to see if I can help the MESS dumpers - bit beyond my electronics skills for me - with only limited success.
Looks like a fair few are going to have to be dumped the hard way - carving the top off, using some sort of high power scanner on the chip, and translating that into binary data.
Fun ..... not. But it is worth preserving these things where possible.
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