27 Sep
2020
27 Sep
'20
5:30 p.m.
Excellent! That?s a great piece of info. Not sure why a TOPS-10 command would be embedded
in a program like this. The notion of filtering/delay itself makes sense but that command
would make sense only if IBM had a DECSYSYEM too, no?
http://www.classiccmp.org/cini
Long Island S100 User?s Group
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________________________________
From: cctalk <cctalk-bounces at classiccmp.org> on behalf of Dennis Boone via cctalk
<cctalk at classiccmp.org>
Sent: Sunday, September 27, 2020 8:22:00 PM
To: cctalk at classiccmp.org <cctalk at classiccmp.org>
Subject: Re: SCP/Microsoft 20HAL uploader
Partially related to that is a program called ?20HAL?
which was a
code uploader Microsoft used in the late stages to get code from
Microsoft in Bellevue to IBM in Boca Raton, FL.
The TOPS-10 manual says that:
(SET) TTY FILL n
sets delay characteristics for the line to class `n`. There's a table
of the number of filler characters sent after each of a number of
different control characters. Class 3 uses the most fillters. The
filler characters used are CR after a CR, and DEL after all the others.
It could make sense to do this during a file transfer, depending on the
assorted endpoints, etc.
De