[Coco] Unit tests on an 8 bit machine

[Sean Conner]

It was thus said that the Great John Guin via Coco once stated:
> Making the rounds on hacker news: https://boston.conman.org/2023/11/27.1

  And the post describing the assembler being used:
https://boston.conman.org/2023/11/24.1

  -spc