Cant Edit Firmware

[Citrodata]

Im currently trying to look at the firmware and how the Renesas CPU's work. But im not getting any good info on them.
Do you know more about them?

[devilsclaw]

you might find something on this old site. Someone explained to me how to use a disassembler on those firmware a long time ago.

https://web.archive.org/web/20160322032023/http://www.rpc1.org/