I wish i could have a look on the schematics...
How are these schematics drawn? Are they drawn using standard AND/OR gates,
or do they consist of more complex elements? If they use standard gates, and
the chip consists of only five schematics, it does not seem to be that
complex. A good start would be to divide the chip into parts (playfield logic,
sprite logic, bus control etc.).
I would do that if i had the schematics... ;-)
Greetings
Oliver
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