OK, that makes sense. I was in the Pr1me world until I moved to the IBM mainframe world in the early 80's then back to Primos as a manager in the late 80's, so the move to PL/1 was off my radar. Thanks for clarifying. --dawn
On Mon, Jan 31, 2011 at 5:36 PM, Wols Lists <antli...@youngman.org.uk> wrote: > On 31/01/11 21:25, Dawn Wolthuis wrote: >> PrimeOS was originally written in Fortran (then later I thought it was >> C -- was it PL/I?) --dawn > > As someone (as a customer) who dabbled in this stuff, the original > versions of Primos were written in FORTRAN - which is why all Primes > came with FTN included. > > I'm not sure at what point (before my time, probably the switch from the > 100 series to the 50 series, rev 15?), new stuff was written in PL/1. > Condition handling was well entrenched in Primos by the time I knew it, > and that came straight out of PL/1. Much better than C++'s exception > throwing, imho. But all the PL/1 code in Primos was written to compile > with either PLP or SPL (their two subsets of PL/1), and again the > compilers were provided free with Primos. I think it was SPL I used to > write my code, that I gave to Prime. I don't remember ever seeing it > appear as part of Primos though :-) > > I think the C code only really started to appear with the 386/MIPS boxes > that ran Unix, about the time of rev 21 or 22. Certainly I don't > remember hearing about any C code in rev 19, which was a *major* change > from 18 before it. I never knew of Primos coming with a C compiler. > > Cheers, > Wol >> >> On Mon, Jan 31, 2011 at 2:52 PM, Clive Hills <discordia...@gmail.com> wrote: >>> I note that PrimOS written by Prime was done in later iterations in PL/1. >>> Projects like UV/UD and others originated on Prime. >>> I think it's likely that some knowledge of PL/I existed. >>> Clive >>> _______________________________________________ >>> U2-Users mailing list >>> U2-Users@listserver.u2ug.org >>> http://listserver.u2ug.org/mailman/listinfo/u2-users >>> >> >> >> > > _______________________________________________ > U2-Users mailing list > U2-Users@listserver.u2ug.org > http://listserver.u2ug.org/mailman/listinfo/u2-users > -- Dawn M. Wolthuis Take and give some delight today _______________________________________________ U2-Users mailing list U2-Users@listserver.u2ug.org http://listserver.u2ug.org/mailman/listinfo/u2-users
