12 Sep
2015
12 Sep
'15
4:03 p.m.
If you still have a working machine, why not disassemble the boot
ROMs. They are only a few instructions long.
Making a listing for the 21MX makes it easy to check them from the front
panel.
As I recall, in the boot sequence, it transfers the ROMs to ram and then
executes it.
Dwight