Date : Fri, 02 Jul 1993 08:37:00 +1200
From : David Andrew Sainty <David.Sainty@...>
Subject: TequilaComm
As of yesterday, Tequilacomm can emulate MNP 2. MNP2 is identical to MNP3
in all by framing method, and as I am still waiting for the vital
component to arrive here that will allow me to support MNP3 and LAPM,
it seemed sensible to implement MNP2 first, though I wasn't originally
going to bother. My implementation also supports the enhancements of MNP4,
so it's a sort of hybrid. The modems here that actually support MNP2
also seem to handle these enhancements on top.
So now I can call modems AND have the phone off the hook! (Although things
slowed down just TOO much when I put the receiver in front of my stereo!)
:-)
I would throw MNP5 on top of it, but don't have information on it. I'm
going to TRY and put V.42bis compression on top, but this is unlikely
to work with many modems (But it's all part of the grand plan of full
V.42/V.42bis compatability anyway).
The code so far is around 2.5k long, and takes the form of a sideways rom
image in sideways ram. All workspace is contained in the ram bank (And
of course you loose 16k of scrollback space). The upgrade from MNP to
LAPM will be relatively painless, most of the code written so far will
be portable to the LAPM environment.
This has probably been one of the fastest pieces of coding I've done,
start to finish time of less than a week (Although that was pretty
intensive work, and varsity is currently out...). So once I get hold
of the hardware things should get really interesting pretty quick...
Dave.