From mboxrd@z Thu Jan 1 00:00:00 1970 From: krewat@kilonet.net (Arthur Krewat) Date: Sat, 18 Nov 2017 18:35:51 -0500 Subject: [TUHS] Determining what was on a tape back in the day In-Reply-To: <492E9EAA-73CE-4102-A1E2-690EB864AFC1@gmail.com> References: <492E9EAA-73CE-4102-A1E2-690EB864AFC1@gmail.com> Message-ID: <80b192e2-562e-2de7-2200-7b70fd525776@kilonet.net> Tail for BASIC. On a slow printer or CRT, you could ^C and only see the last few lines. Better than printing out the entire thing from the beginning. Or did it have a way of listing only a certain range of line numbers? On 11/18/2017 6:16 PM, Don Hopkins wrote: > >> On 18 Nov 2017, at 23:37, Dave Horsfall > > wrote: >> >> On Sat, 18 Nov 2017, Don Hopkins wrote: >> >> (LISTREVERSE} >> >>> Chalk one up for DEC and BASIC. What other programming languages >>> support that feature, huh? >> >> You could probably do it in APL; you could do damned well everything >> else after all...[*] > > If you LISTREVERSE’ed a Lisp program, it would look like PostScript > with parens! > >> >>> LISTREVERSE and LISTNHREVERSE print the contents of the user's >>> memory area in order of descending line numbers. LISTREVERSE >>> precedes the output with a heading, LISTNHREVERSE eliminates the >>> heading. >> >> Why on earth would you want to? > > I have been wondering about that for years. > > Here’s the manual! LISTREVERSE is documented on page 9-3. Maybe if I > printed out the "READERS COMMENTS" form at the back of the manual, > wrote my question in big upper case block letters, then ticked the "If > you require a written reply, please check here” checkbox, then “Fold > Here” and “Do Not Tear - Fold Here and Staple” as instructed, I could > mail in the free first class pre-addressed, business reply mail, no > postage stamp necessary if mailed inside the United States envelope, > and they’d write me back a nice letter telling me what the fuck they > were thinking. > > http://bitsavers.informatik.uni-stuttgart.de/www.computer.museum.uq.edu.au/pdf/DEC-20-LBMAA-A-D%20BASIC%20User%27s%20Guide.pdf > > -Don > -------------- next part -------------- An HTML attachment was scrubbed... URL: