A 6502 made from 74-series logic gates running at 20 MHz #VintageComputing
An interesting post via Hackaday, Drass has created an implementation of the classic 6502 microprocessor using just 74-series logic chips!
Through a flying ribbon cable, it can plug directly into the 6502 socket on classic microcomputers, and the website shows it running a variety of software on a Commodore VIC20. There is also a custom SBC as part of the suite, so no need for a classic micro if you want to put the CPU through its paces. The boards are not quite perfect, the website has a picture of some very neat reworking where it appears that a bus has been applied to a chip in reverse, but it certainly has the feel of a professional design about it.
A 20 MHz 6502 would have been revolutionary in the mid-1970s!
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