programming language/systems
(foldoc) | Programming Language/Systems
PL/S
(PL/S) An IBM machine-oriented language derived
from PL/I, in the late 1960s, for the IBM 360 and {IBM
370}. PL/S permitted inline assembly language and control
over register usage.
Previous IBM 360 operating systems such as OS/MFT and
OS/MVT had been written entirely in assembly language.
The first IBM OS that had any significant portion written in
PL/S was MVS, followed by OS/VS1, OS/VS2 and OS/SVS.
PL/S was part of IBM's {OCO
(http://www.landley.net/history/mirror/ibm/oco.html)} (object
code only) effort, started in 1983. PL/S was used internally
and never released to the public. It is documented in various
IBM internal ZZ-? publications.
Versions: PLS1, PLSII.
["PL/S, Programming Language/Systems", W.R. Brittenham, Proc
GUIDE Intl, GUIDE 34, May 14, 1972, pp. 540-556].
(2012-01-20)
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