4 ms·

My first exposure to the Z80 was via Rodnay Zaks's book [1]. And, just because I was curious, here's the Vic-20's 6502 circuit diagram [2] [1] https://archive

My first exposure to the Z80 was via Rodnay Zaks's book [1]. And, just because I was curious, here's the Vic-20's 6502 circuit diagram [2] [1] https://archive.org/details/Programming_the_Z-80_2nd_Edition_1980_Rodnay_Zaks/mode/2up https://archive.org/details/Programming_the_Z-80_2nd_Edition... [2] https://www.vic-20.it/wp-content/uploads/2021/06/VIC-20-Schematic-Main-Logic-Version-E.pdf https://www.vic-20.it/wp-content/uploads/2021/06/VIC-20-Sche... P.S. Fun fact - my mobile phone number ends "6502" :)

JohnFen 3y ago
The Vic 20 was the first commercial microcomputer I owned, and I did a lot of machine language programming on it. But the first microcomputer I owned was one I built myself, based on the 8085A (which was basically the same as an 8080). Since the Z80 was essentially an enhanced 8080, I could never choose a side on the Z80/6502 wars and consider the debate a bit stupid (like all holy wars).