Recovered visual6502.org wiki - beta release
Beregnyei Balazs (family name first!) derived a schematic from his die photo and wrote up notes on the circuits.
The chip is an R6502 which is a Rockwell part but uses MOS Technology’s masks.
Henry S. Courbis worked with a friend of Balazs on an English translation
Balazs gave a 40 minute presentation on the reverse engineering at Hacktivity 2011, see here (original Hungarian) and here (English voiceover).
Retrieved from “http://visual6502.org/wiki/index.php?title=Balazs%27_schematic_and_documents”