There is nothing in the tech manual w.r.t. console support, except that the
processor special registers are dummies that do nothing (as you already
discovered:-).

Is there any vmb routines for doing console I/O? (If not, I think we are
stuck talking to the bitmap display or serial chip ourselves.) In the latter
case, avoiding doing I/O from boot would be the simple solution, for now:-)

Anyhow, sounds like you are making progress. Keep up the good work, rick