Wow, just looked it up and that was two years ago… I got stalled emulating the isa bus. Then I got working on a job… like took over etc etc.
Surprised to see the dead zones, not too sure whats going on there, might be an issue with the shift registers of the power board. I never made any modifications to the hardware, just plugged in my own ribbon cable in place of the on board 386’s
Im tempted to keep it because its a heck of a lot of leds, that can display usable text but I don’t know if I have the cycles to actually finish it off. Option b is to go the same way noisebridge did it and talk direct to the shift registers: https://www.noisebridge.net/wiki/Big_LED_Screen