So has the whole 8-bit processor-on-a-bread-board thing thoroughly sewn up. His YouTube videos are brilliant. But where do you go if you want … more?
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It's like the RC2014 from . Great piece of kit. Big community. But it's fundamentally an 8-bit CPU with a 16-bit memory bus.
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Where's the tutorial that shows me how to make a PC from scratch? Or an Amiga 500? Yes, they are complex, but they're not impenetrable. I feel like they deserve to be taken apart, documented and reassembled step-by-step in an open-source fashion.
Are we just not there yet?
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I should note that you can of course get everything in an Amiga 500 and more besides in a single microcontroller costing £4. But it is all hidden inside the die, and I think there is value in using a microprocessor with an external bus from a educational point of view.
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An FPGA SoC has a similar problem to an ASIC SoC, in that the insides are largely opaque and hard to observe and study.
I have a MiSTer and it's great fun, but fixing a bug in the ao486 implementation was just an awful experience.
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MiSTer looks cool :) Replacing every chip with its own FPGA on a dedicated board might be a fun pedagogy project, but seems very unpractical.