18 Nov
2017
18 Nov
'17
9:03 p.m.
Speaking of old BASIC interpreters, does anyone know out why DECSYSTEM 20’s BASIC had a
“LISTREVERSE” command?
Yes, it actually did exactly what it sounds like!
Chalk one up for DEC and BASIC. What other programming languages support that feature,
huh?
https://imgur.com/a/Bt40M <https://imgur.com/a/Bt40M>
DECSYSTEM 20 BASIC User's Guide: LISTREVERSE command
LISTREVERSE
LISTNHREVERSE
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.
LISTREVERSE
EQUIV 10:53 13-NOV-75
40 END
35 PRINT "THE EQUIVALENT CURRENT IS",I, " AMPERES"
25 I=E1/R
10 INPUT R
5 INPUT E1
READY