Date   : Tue, 12 Apr 1983 22:51:00 EST
From   : Jonathan David Callas <JURGEN@mit-mc.arpa>
Subject: VT180 I/O innards

Does anyone have the details on how to directly access the I/O system on
a VT180? I.e. How do I directly stuff (or read) bytes for the serial ports
and the keyboard? The silly manual that comes with the VT180 does barely
more than tell you how to use PIP and ED. Nothing even about how to access
the BDOS!! Replies to me as I am not on info-cpm.

       Thanks,
       Jon