[comp.sys.zenith.z100] WXTERM

W8SDZ@SIMTEL20.ARPA (Keith Petersen) (02/14/88)

WXTERM is a terminal/file transfer program for MSDOS that does
Windowed Xmodem and Xmodem protocols.  The WXTERM.ARC as distributed
did not include source code.  I believe this is written in Turbo
Pascal and originates with some folks associated with the "PLINK"
(People Link) service.  It is public domain and distribution is
encouraged because they want to see more people using the WXmodem
protocol.

On CP/M computers we have no implimentation of ZMODEM (which I
consider to be a better protocol for the new high-speed modems and
packetized networks).  I had hoped that someone would write a Zmodem
program but none seems forthcoming.  The protocol seems too complex to
try to write an assembly-language version for CP/M.  Compiled "C"
versions are too big to fit in most people's transcient program space.

The only alternative seems to be to go to WXmodem.  Does anyone have
the latest Turbo Pascal source for it?  I'd like to try to convert it
to run on CP/M.

--Keith Petersen
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USERBH0U@clvm.clarkson.EDU (Dave Goldblatt) (02/14/88)

I would suggest using SEAlink over WXMODEM, as it is supported over a
much larger base.  SEALink is built into the Opus bulletin board system,
and is present in MANY of the newer terminal programs.  It is fully
compatible with Xmodem, and uses a 6-block window for greater efficiency
over packet-switched networks and the like.  It is also VERY easy to
implement.  I'll see if I can dig up the sample source code for it;
if you have a local Opus bulletin board, see if they have the BinkleyTerm
program available; in the source for Binkley are routines for Zmodem,
Xmodem, Ymodem, and SEAlink.
     
If I can find the sealink source (which I know I have somewhere.. :-)
I'll put it on clutx.clarkson.edu for anonymous ftp as sealink.arc.
Check tomorrow for it..
     
-dg-
     
Internet: dave@clutx.clarkson.edu  or  dave@sun.soe.clarkson.edu
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