> During some quite moments at my work I'm working on a project which has as goal > to build a 6502 only using common available IC's. The original goal was only > using TTL-IC's but that was impossible in case of the instruction decoder and Actually I have had the same sort of plans, but I was planning to start with an easier chip - 6526. Although, work hasn't permitted me to devote much time to it so it's still in the stage of just planning. I was going to use 74HC-series chips, not TTL, though. And I wasn't going to waste any time by using the simplest chips (74HC00), although that would have a point too. It's just that then, a lot of time goes wasted, constructing dozens of flipflops from NAND gates. Also the PLA should be easy-ish to make in discrete logic. > If you're interested in any part of my work, let me know. Instruction decode using an EPROM will be much easier, yes - but how complex would it be to make in hardcoded logic? - This message was sent through the cbm-hackers mailing list. To unsubscribe: echo unsubscribe | mail firstname.lastname@example.org.
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