Hi,
....I've never prodded a 6809 myself (just 6502 and
Z80), but
I guess I could stand to learn too :-)
I've been doing a fair bit of 6809 hacking on and off over the past few
years (messing around with my Vectrex) and it's a very nice processor
indeed. Pretty darn easy to get your head around.
Sort of a "souped up" 6800/6802, not entirely unlike Z80 vs 8080.
TTFN - Pete.