I'm sure this is old news to most folks, but I was surprised. Leif Bloomquist gave me an old VIC-20 Expansion Unit (6 slot) that contains a number of switches and knobs (it's really a cool unit, you can select which banks the 2 RAM slots use via knobs, the normal ON/OFF per slot, and some DIP switches for configs and a RESET button.). One intriguing item on the PCB was a "PAUSE" switch. Dubious, I set the unit up, popped in a GORF, and started the game. Just as the name suggests, enabling the "PAUSE" button does indeed pause the game. I checked, and the switch just grounds IRQ. I suppose it makes sense, as the CPU would continuously go to the IRQ routine, never moving forward in the regular code, but it did surprise me. I didn't exhaustively test, but I worked on non cart apps as well. thought it odd that I've never seen a simple cartridge with a button marketed for the VIC-20 as a "pause your game" aid. I would have thought such a product would have been marketed. JIm -- Jim Brain email@example.com www.jbrain.com Message was sent through the cbm-hackers mailing listReceived on 2013-07-12 18:00:04
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