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From: elg@usl.UUCP
Newsgroups: net.micro.cbm
Subject: Re: Punter Protocol wanted
Message-ID: <853@usl.UUCP>
Date: Fri, 1-Aug-86 23:55:42 EDT
Article-I.D.: usl.853
Posted: Fri Aug  1 23:55:42 1986
Date-Received: Sun, 3-Aug-86 03:36:10 EDT
References: <228@cs1.UUCP>
Reply-To: elg@usl.UUCP (Eric Lee Green)
Organization: USL, Lafayette, LA
Lines: 34
Keywords: Punter Protocol for Unix systems

In article <228@cs1.UUCP> cbcscmst@cs1.UUCP writes:
>
>Is there a version of the Punter Protocol that runs on a Unix system for 
>downloading to a C-64? 

Not that I know of. However, if you want to attempt to write one, it
shouldn't be too big a hack... Steve Punter has completely documented
his protocol, and placed the source code in the public domain. I have
both, which I downloaded from Q-LINK, and it's pretty neat... it does
both CRC and checksums AT THE SAME TIME! to make sure that there are
NO errors, and it uses three-character ACK/NAK type codes so that
garbage over the modem doesn't mess up the protocol. I KNEW there was
a reason Punter was more popular than Xmodem for C-64s.

> Most all of my terminal software has built in 
>Punter protocols, only one (Master Modem) has Xmodem protocol.  I prefer
>my VIP term software since it emulates a VT52 nicely, but also uses Punter.

VIP-Term uses Old Punter, which is a modified Xmodem (it's hacked so
that the last block doesn't get padded with zeros). The Punter which
the bulletin boards use is New Punter, which is the one with the dual
checksum, etc. In fact, it wouldn't be difficult to add adaptive block
length to New Punter, in order to adjust to line conditions.

>.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.
>				Mike Temkin
>				{inhp4,psivax,ttidca}!csun!cs1!cbcscmst

--
  Are you still an alcoholic?
-- 
-- Computing from the Bayous, --
      Eric Green {akgua,ut-sally}!usl!elg
         (Snail Mail P.O. Box 92191, Lafayette, LA 70509)