4 ms·
Doubtful - the 6502 had something like one poly and one metal routing layer. It was hand routed by a human; balancing the use of poly, metal and diffusion is pr
by bunnie 7y ago
Doubtful - the 6502 had something like one poly and one metal routing layer. It was hand routed by a human; balancing the use of poly, metal and diffusion is pretty tricky and requires bending a few rules that would otherwise constrain an autorouter in order to get everything to fit.
- fpgaminer 7y ago> It was hand routed by a human And let's be clear, it was hand routed in both senses of the word. The layout engineers cut the mask by hand, crawling around on the table sized photomask.