Date   : Mon, 30 Aug 1982 1552-:00PDT
From   : Ted Shapin <BEC.SHAPIN.USC-ECLD@Usc-Ecl>
Subject: New MODEM TOPS20

I have modified MODEM TOPS20 extensively.  It can be FTP'd from
USC-ECLA::<JSOL>MODEM.MAC.

I had a version of MODEM221A that did not have Dave Mabry's reset
for 8251 overrun in it.  On the other hand, it had a mod by James
Underwood dated 5/6/82 that fixed bugs in the capture routine
when memory buffer overflowed.  There may be a version conflict
on certain RCPM systems.  I have a version that I think combines
all the mods and also has labels unique in the first 6 chars
(which my cross assembler requires).  I would like to call this
version MODEM222 and will upload it shortly.

MODEM TOPS20 now works very well and seems to handle heavily loaded
systems as well as line hits since I took Keith's advice and use
a one second delay waiting for characters and a ten second delay
waiting for ACKs.  I also added code to print the file size on
open, etc.

Ted.