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.
n SHEEP you control a sheepdog (named Shep), trying to herd a bunch of sheep into a barn. The use of the p character for the sheep was an inspired choice—when I was young, I knew nothing about the Greek alphabet or the mathematical constant pi but I did think that the character resembled a sheep or a small dog. The sheep are hard to control; they are afraid of your dog and will sometimes dart clear across the screen when you get too close to them.