Changing the size of memory or changing the ROM version forces a reset of the PET.
The emulator has an IEEE-488 device at address 8. It can be used load and save (.prg) files.
Some programs don't run on ROM1 and some require more memory than the default 8K.
The patched version of Jim Orlando's 'pet panic' will run on both rev 3 ROMs and rev 4 ROMs.The arcade game Space Panic was the first platformer game, and it inspired more popular games of the time such as Lode Runner and Donkey Kong. There were many different versions of Space Panic on the original 8-bit machines, including Apple Panic which won a number of game awards.
This is an updated version for the Commodore PET.