danjovicI have completely missed that the ZX81 ULA does not provide an external signal for reading the keyboard. Same for TS1500.
It is a pity but a a decoder required for these micros... a simple 74HC32 should do the job.
I have completely missed that the ZX81 ULA does not provide an external signal for reading the keyboard. Same for TS1500.
It is a pity but a a decoder required for these micros... a simple 74HC32 should do the job.
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