Ben_Larson Posted May 16, 2009 Share Posted May 16, 2009 I recently acquired a Pitfall 2 cartridge, and having remembered that it uses a proprietary chip for the sound, I became curious as to how exactly it works. From looking through the Stella archives, I gather that it generates sound waveforms by changing the sound register volume every scanline. I guess I'm wondering how exactly that's done though. Is the chip, like, intercepting dummy instructions on the fly and replacing them with real instructions to load/store the next value in the sound register? Quote Link to comment Share on other sites More sharing options...
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