On Thu, 7 Sep 2006, Cameron Kaiser wrote:
commercial software) then you're probably out of
luck. There is no way
to do a hard reset on a stock 64 other than cycling the power although
there are ways to add a reset button and some utility cartridges have
reset buttons.
Any idea which utility cartridges have a reset button?
The most notable in NTSC-land are the Super Snapshot and Final Cartridge.
Action Replay should also have one, I think.
Alas, the Epyx FastLoad does not.
As documented below, /RESET on the USER port shorted to GND will cause
a hardware reset.
http://hardwarebook.net/connector/cartridge/userioc64.html
On early C64s you can also use the serial (disk drive) port to reset the
machine. Later C64s have a buffer there and it no longer works.
/RESET to GND again:
http://hardwarebook.net/connector/serial/serialioc64.html
Many C64ers have momentary switches mounted to their cases and wired to
the backs of the USER port header for this purpose.
JP