the KK Computer - a radical 6502 redesign
is the story of an extremely unusual microcomputer. An
industry-standard CPU chip is dramatically enhanced by off chip
circuitry - a coprocessor - that boosts the machine's capabilities into
a different class.
Guide to 65xx CPU Timing
band" diagrams in this article offer insight into real-world timing
margins and the tradeoffs between them.
at 60 Hertz
it earns its keep. An amusing yet valid design.
Diablo Proprietary CPU
page describes the "brain" of a Diablo 1345
printer: not a microprocessor but a fascinating proprietary
engine built out 3 PROM's and some