zmodem source code?

[umwieb80@news.cc.umanitoba.ca (Alexander David Wiebe)]

If a programming/souce code news group exists I appologize.

I'm trying to figure out how my //e works with the modem, so that I can
write my own utility (merely a learning experience for now).  I have tried
to look for zmodem info, and finally found a couple of docs for it.  As
well I managed to track down the source code for rz and sz for Unix.  What
I would like is if someone would send me source code for these 2 commands
for the //e.  (I realize this would be in assembly - preferbly generic as
I don't own any assemblers).  I believe these are public domain provided
it is for private use only (and if I ever went commercial, I would
certainly pay any fees).

As well, can anyone recommend a good book on how to program a modem driver
for the //e?  I've looked around at the libraries, but either didn't look
hard enough, or they don't have anything to useful.

Thanx.

--
Alex Wiebe - umwieb80@ccu.umanitoba.ca - north of the 49th parallel
Hobby: Hang Glider Pilot  Rating: working on Novice  Flight Time: 45 sec.
Number of Flights: 16   Longest flight: 3-4 sec.  Highest alt.: 40-50 feet
Glider Used:  Trainer  L/D: 6/1 (if lucky)  Capacity: 175-205 lbs