It occurred to me that given the 6502's predictable clock cycle timings it should be possible to create a realtime disassembler using e.g. an Arduino Mega 2560+character lcd display attached to the 6502's address/data/etc pins.

Of course, this would only be useful in single-stepping/very slow clock speeds. Still, I think it could be useful in learning how the 6502 works.

Is there relevant prior work? I'm struggling with my google fu.