News for hackers. Stuff that matters.

A comment on Jean Sammet, co-creator of COBOL, has died. Parent comment

Re:Jean Sammet, co-creator of COBOL, has died by skissane on Sunday June 04, 2017 @10:04PM (#14484863)
CP/M was written in a different subset of PL/I, PL/M

https://en.wikipedia.org/wiki/PL/M

The PL/M source code for various version of CP/M can be inspected here: http://www.cpm.z80.de/source.html

(Maybe I am being somewhat inaccurate in calling PL/M a "PL/I subset"; maybe it would be more accurate to say that PL/M is a distinct language which was heavily influenced by PL/I, a member of the PL/I language family.)

[ Parent | on HN ]
Re:Jean Sammet, co-creator of COBOL, has died by ScottBurson on Monday June 05, 2017 @03:13AM (#14485813)
> CP/M was written in a different subset of PL/I, PL/M

It is somewhat amazing to me that I can't recall that I ever knew that, despite once having owned a CP/M machine and having written some software for it. I always assumed it was written in assembly.

[ Parent | on HN ]