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8-bit CPU with 4KB of RAM apes iPhone interface

Posted by Dark Legion 11/09/2009

Watching this video, it doesn’t seem very much more than a demo for a rather anonymous-looking little touchscreen device, a PMP prototype maybe. Then you find out that the whole thing is running an 8-bit processor with 4KB of RAM. Touchscreen tricks like scrolling momentum are implemented perfectly well,
and there appears to be little or no lag. Pac-Man runs at 60fps, which is more than I can say for the version on my G1.

The touchscreen is salvaged from an off-brand PMP, and the CPU is a 12Mhz Atmega644 — not something I’m familiar with, but I trust the author when he says it’s about 3% of the speed of an iPhone. And it’ll render a polyhedron (though I doubt it can texture it).


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