I cheated a bit to skip implementing multi cycle instructions. The VM is
pretty much a normal tail recursive function, but working with scalars
in BQN is on brand-ish. Array programming helps again when drawing the
picture on screen.
Change-Id: I2562c862e228f633c5fad09e503529c6e0785112
Reviewed-on: https://cl.tvl.fyi/c/depot/+/7556
Tested-by: BuildkiteCI
Reviewed-by: sterni <sternenseemann@systemli.org>
Autosubmit: sterni <sternenseemann@systemli.org>