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Signal Carnival


At Revision 2025, we released "Signal Carnival" (csdb, YouTube). This demo asks you to switch the audio and video cable of your C64: (Diagram by Felidae) Technically, "misplugging" those cables is not a completely new idea.

In the 90s, it was a common thing to connect audio to both speaker and video, to get screen flickering timed with the music beats. Since a lot of the effects are quite memory-hungry (we even play a sample at the end), loading breaks are long enough that we can't just pause audio while they happen. The loader has a few gimmicks, like doing on-the-fly GCR decoding that allows to write to any page (not just stack), and it buffers (stashes) a full kilobyte.

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Signal Carnival