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 Get Outlook<https://aka.ms/qtex0l> for iOS ________________________________ From: cctalk <cctalk-boun...@classiccmp.org> on behalf of Dennis Boone via cctalk <cctalk@classiccmp.org> Sent: Sunday, September 27, 2020 8:22:00 PM To: cctalk@classiccmp.org <cctalk@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
