visual 6502 simulation

[rhialto]

In case you haven't noticed, some brilliant guys have analyzed the 6502. From
microscopic images of the chip they built a netlist and a simulator to actually
run the chip, from this netlist!

http://www.visual6502.org/

This allows to actually analyze all the peculiarities, for example why an
interrupt during a taken branch is delayed by an instruction.
http://forum.6502.org/viewtopic.php?t=1634 - might be worth looking into that
for the Commodore emulators...

(from the cbm-hackers mailinglist)