![]() ![]() ![]() ![]() The design was partly debugged by fabricating chips containing small subsets of the design, which could then be tested separately. The chip was partly laid out using electronic design automation tools from Applicon (now a part of UGS Corp.), and partly laid out manually on vellum paper. About 3/4 of the chip surface is used for the sprite functionality. The Atari 800 was also mined for desired features. The idea to support collision detection came from the Mattel Intellivision. The idea of adding sprites came from the Texas Instruments TI-99/4A computer and its TMS9918 graphics coprocessor. In order to construct the VIC-II, Charpentier and Winterble made a market survey of current home computers and video games, listing up the current features, and what features they wanted to have in the VIC-II. The team at MOS Technology had previously failed to produce two graphics chips named MOS Technology 6562 for the Commodore TOI computer, and MOS Technology 6564 for the Color PET, due to memory speed constraints. as a successor to the MOS Technology 6560 "VIC". The VIC-II chip was designed primarily by Al Charpentier and Charles Winterble at MOS Technology, Inc. ![]()
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