AT&T 6300 video controller info wanted?

[2014_5001 at uwovax.uwo.ca]

Where can I get information on directly programming the
video controller on an ATT6300/Olivetti M24?

Any pointers to information sources would be appreciated.

-- 
Alexander Pruss, at one of: Department of Applied Mathematics, Astronomy,
Mathematics, or Physics                     University of Western Ontario 
pruss at uwovax.uwo.ca         pruss at uwovax.BITNET          A5001 at nve.uwo.ca