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Date: 22 Nov 82 23:33:34-EST (Mon)
From: Bob Hoffman
To: Dave Fylstra
Subject: MODEM protocol implementation for RT11
I read your note on net.micro.cpm concerning RT11 tools and thought
I'd give you what I have: I wrote this to run on my LSI-11 at home
using the DECUS C compiler. The code should be relatively
self-explanatory given an understanding of the MODEM protocol itself.
The reason for using a global (dladdr) for the device address is that
the device address is hard-coded into the binary in exactly one
place -- the global itself. This makes it easy to patch the binary
if you should move the .SAV file to another system that has its
modem port at a different address [I find myself doing this often].
I have used it at 1200 baud and it seems to work just fine. If you
have any questions or comments about it, please don't hesitate to ask.
Good luck,
---Bob.
...mcnc!idis!pitt!hoffman