Hi folks! During the past weekend, I borrowed six VIC-20 cartridges from a friend. These are Sea Wolf, Pinball (Spectacular), (Super) Slot, UMI:s Renaissance (packaged for UK/Europe by Audiogenic though) and Amazing Maze, a rather rare cartridge which includes a runs-in-RAM-check. The last one, Amazing Maze, is a 4K cartridge (A000-AFFF), but when I searched through the memory, I found something at B000-BFFF as well, and saved it down to disk. It turned out the first and second images are identical, down to the single byte. My question is how this is possible? Is the cartridge ROM designed this way, or is it VIC which maps a cartridge which doesn't fill a full 8K block with itself again? Or could it be my RAM expander which plays me a trick? The game (with a warranty label from OEM on the back side) btw turned out to be quite a lot of BASIC, possibly with some MC routines and should be the same image already found on Funet. /Anders Carlsson - This message was sent through the cbm-hackers mailing list. To unsubscribe: echo unsubscribe | mail cbm-hackers-request@dot.tml.hut.fi.
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