I'm a programmer, the CPU is a mystic black box that gets fed instructions. I'm trying to learn and work out what the CPU really does. Here I build a system to control and watch the Z80's functions.
This was inspired by Ben Eater's 6502 and 8Bit CPU videos, and is what I based my Arduino code on.
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https://www.youtube.com/watch?v=zELXowjGiwQ