I am wondering what you meant with the above? BeamRacer block diagram shows what is implemented and I am not sure how to match it with what you wrote.

It is confirmed - the Amiga keyboard controller is a variant of 6500/1, which in turn is a 6502 based microcontroller. The content's been dumped, reversed, etc.

Hi group,

I have a nice pile of 4168 chips and wanted to use them instead of 6264/4364 SRAMs (they are pin compatible) in a 6502 based subsystem. But I am puzzled with the datasheet.. the chip supposedly should be able to do "auto refresh" but I never used it before and it seems than neither ...

Daryl,

I went on looking for a 6502 emulator for AVR and quickly found this thread. I read through it and saw your page - great job indeed!

The reason I started to look for this is the fact that some smart people have recently managed to "hack" out

http://e4aws.silverdr.com/hacks/6500_1/

the ...