Relay-Version: version B 2.10 5/3/83; site utzoo.UUCP
Path: utzoo!utgpu!water!watnot!watmath!clyde!rutgers!husc6!bacchus!mit-eddie!genrad!decvax!tektronix!reed!omen!caf
From: caf@omen.UUCP
Newsgroups: comp.sources.wanted
Subject: Re: ZMODEM for MS-DOS?
Message-ID: <479@omen.UUCP>
Date: Thu, 19-Feb-87 17:05:50 EST
Article-I.D.: omen.479
Posted: Thu Feb 19 17:05:50 1987
Date-Received: Sat, 21-Feb-87 04:22:41 EST
References: <160@parcvax.Xerox.COM>
Reply-To: caf@.UUCP (PUT YOUR NAME HERE)
Organization: Omen Technology Inc, Portland Oregon
Lines: 22
Keywords: ZMODEM wanted

Several people have converted the Unix rz/sz programs to PC-DOS and
similar current computer systems by replacing the Unix specific code
with primitives suitable for the environment at hand.

It should be possible to do the same for CP/M given one of the more
complete C compilers - they'll need longs, and unsigned longs for the 32
bit CRC code.

To get ZMODEM's high throughput, the receiver must be able to continue
receiving characters while writing to its output.  Few CP/M systems
allow this.  An alternative is for the receiver to receive a large chunk
in streaming mode, say 20k, then write it out to disk.  Thia mode is
called "Segmented Streaming" in the ZMODEM.DOC protocol document.

Current ZMODEM documentation may be found on TeleGodzilla.

Chuck Forsberg WA7KGX Author of Pro-YAM communications Tools for PCDOS and Unix
...!tektronix!reed!omen!caf  Omen Technology Inc "The High Reliability Software"
  17505-V Northwest Sauvie Island Road Portland OR 97231  Voice: 503-621-3406
TeleGodzilla BBS: 621-3746 2400/1200  CIS:70007,2304  Genie:CAF  Source:TCE022
  omen Any ACU 1200 1-503-621-3746 se:--se: link ord: Giznoid in:--in: uucp
  omen!/usr/spool/uucppublic/FILES lists all uucp-able files, updated hourly