SOURCE: https://spectrum.ieee.org/q-a-with-co-creator-of-the-6502-processor https://spectrum.ieee.org/q-a-with-co-creator-of-the-6502-pr... Bill Mensch tells I

SOURCE: https://spectrum.ieee.org/q-a-with-co-creator-of-the-6502-processor https://spectrum.ieee.org/q-a-with-co-creator-of-the-6502-pr... Bill Mensch tells IEEE Spectrum directly that the 6502 was designed to compete with the Intel 4040, and specifically says not the 8080 or 6800. I don't know how much more "primary" a reference can get, folks.