Atari 400/800/XL/XE/XEGS systems
· This is a small circuit board, made by made by Bernhard Engl that plugs into the PBI slot of your Atari XL (There was also a XE version of the freezer). It allows you to stop every program by pressing the red button on the Freezer. You could then save the current execution state to (ram) disk and reload it at a later time to continue playing. It has also has a monitor/disassembler which allowed you to change the current memory contents and then continue the program's execution. For a list of valid cheat codes, go to: http://www.xs4all.nl/~rdemming/Atari/Freezer/index.htm.