27 May
2020
27 May
'20
3:31 p.m.
On May 27, 2020, at 4:59 PM, Paul Koning via cctalk <cctalk at classiccmp.org>
wrote:
I used POP-2 at the University of Lancaster (ICL1909) and the University of Essex (PDP-10)
in the late ?60s and early ?70s. The language implemented an open stack so to swap the
contents of 2 variables you would use:
A, B ->A ->B
POP-2 later morphed into POP-11 running under Unix on a PDP-11. Later came POPLOG which
merged in support for PROLOG and LISP. There is a open-source implementation of POPLOG
available.
John.
On May 27, 2020, at 4:25 PM, ben via cctalk
<cctalk at classiccmp.org> wrote:
On 5/27/2020 1:45 PM, Paul McJones via cctalk wrote:
I remember that from POP-2, which I think was created at U of Edinborough. At least we
used it at University of Illinois on an AI course taught by a visiting professor who came
from there. Odd language, I haven't seen it since.
Gogol is a simple, integer arithmetic language
used under the PDP-1 time sharing system at Stanford. This memorandum includes the
syntactical definition of the language and a number of sample programs as well as a brief
description of the operational characteristics of the compiler. Gogol was designed to
permit fast compilation of efficient machine code directly into memory. The speed of
compilation together with the accessibility of the text editor make program de- bugging
relatively rapid. The examples presented here plus the availability of the compiler should
form an adequate basis for learning to use the language. More detailed information depends
heavily on a knowledge of PDP-1 hardware.
https://stacks.stanford.edu/file/druid:jy391jj5758/jy391jj5758.pdf
Interesting the
asignment is -> (arrow) and the right side of expression.