🚀 go-pugleaf

The Datacomm package uses a standard terminal window type on the IPC,
which emulates an HP2622 terminal.  The specific implementation of the
HP2622 terminal is called term0.  It is documented in the Integral
Personal Computer Programmer's Guide; HP part #82865J.  The
programmer's guide is very valuable if you plan to do any programming
of the IPC.  The chapter's cover:
	General Programming info (alot of good stuff with real examples)
	Window Manager Reference
	Term0 Reference
	HP-GL Reference (for graphics windows that emulate HP plotters)
	Alpha/Graphics Windows (for high speed Graphics with Alpha capability)

You will find that HP terminals tend to share a fair number of
features.  Thus if you have a description of any HP terminal (HP2648,
HP2622, etc.)  then you have at least a close description of what
Term0 is about.

The minimal terminal emulator code that I mentioned really does
nothing more than read characters coming into the serial card, and
write keys typed out to the serial card.  There are many versions of
this program running around here.  Some are quite nice.  But if you
want it to do anything fancy, like graphics, or VT100, then you will
probably need the help from the Programmmer's guide.

Note that the default window created on the IPC is a Term0 window.
You can create a Term0 window by typing 'echo' into PAM.  You could
then type in escape sequences (laborious) and the Term0 driver in ROM
will interpret those sequences for you.  Thus the dumb terminal
emultor  which I will also post does NO work to also implement Term0,
and thus by default looks like an HP terminal.  Note also if you want
to 'see' escape sequences being parsed by the Term0 driver then use
the 'alpha' function key to turn on 'Display Functions' mode.

I hope I am being helpful.  We really do not want information about
our machine to be a secret.  I  must also share with you that a number
of people here (HP-Corvallis, OR.) got a kick out of your description
of our machine as running a UN*X like OS.  The OS is SYS V, of course
with HP enhancements 8-).

I will gladly try to help you with any further questions.

				Regards,
					Ken Bronstein
					hp-pcd!ken
					(503) 757-2000 X4133