Notes from Michael <michael@croftpak.globalnet.co.uk>:

CHAIN"MBOL1" starts a hacked version that works with PC-BBC:

BOL2 EOR'ed the data in BOL3 to create an executable piece of code.
For some reason, in PC-BBC the data is incorrectly EOR'ed, and
therefore cannot run BOL3 correctly.

I simply executed BOL2 to a point on my BBC, and then saved the
results.

CHAIN"BOL1" starts the original version.
