Summary

  • Matthias has developed an audio-visual presentation reliant on two analogue cables and a Commodore 64 (C64) computer.
  • In an ‘accidental’ move, many C64 users connected the cables to the wrong ports when first setting up the machine.
  • Matthias aimed to achieve this mishap on purpose to produce video with audio hardware, and vice versa.
  • It proved simple to generate audio from the video hardware, due to the rapid operations of the chips involved.
  • Generating video from audio hardware was trickier, owing to a less performative register, but still feasible for basic large text and other features.
  • Demos can be written for the setup, though loading them takes so long that audio has to be ‘bit-banged’ throughout.
  • This retro project reveals a deep understanding of the C64’s capabilities, also showcased in other demos such as Linus Akesson’s ‘A Mind is Born’ (written in 256 bytes).

By Bryan Cockfield

Original Article