You are here: irt.org | FOLDOC | Programming Language%2fSystems
<language> (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)
Nearby terms: programming fluid « programming language « Programming Language/Cornell « Programming Language/Systems » Program Temporary Fix » program transformation » Prograph
FOLDOC, Topics, A, B, C, D, E, F, G, H, I, J, K, L, M, N, O, P, Q, R, S, T, U, V, W, X, Y, Z, ?, ALL