[Info-vax] GCC for VMS, was: Re: fortran compiler roadmap?

[Paul Sture]

In article <P2OdYZ82TwRH at eisner.encompasserve.org>,
 koehler at eisner.nospam.encompasserve.org (Bob Koehler) wrote:

> In article <kl3l7r$9ff$1 at Iltempo.Update.UU.SE>, Johnny Billquist 
> <bqt at softjar.se> writes:
> > 
> > Indeed. Fortran-IV-Plus had a lot of things that ended up in the F77 
> > standard. F4P was pretty nice, but once F77 came out, DEC stopped the 
> > F4P compiler.
> > 
> 
>    My first 11/780 was running VMS 1.x, and lots of things were in
>    compatability mode.  Don't know about the compiler.
> 
>    My next 11/780 arrived at the time of VMS 2.2, and lots of things
>    were still in compatability mode, but DEC told us the only two
>    native compilers were Fortran and COBOL.

We went straight from V2.1 to V2.3 and I have a feeling that the COBOL 
compiler we were first using ran in compatibility mode but output native 
object code.  When V3.0 arrived the COBOL compiler was a native one.

>    We started interfacing Fortran routines with Macro-32 routines right 
>    away, so I don't think the compiler could have been generating
>    PDP-11 object, although it could have had heritage to a
>    cross-compiler from RSX (running in compatability mode but generating
>    VAX object).
> 
>    I just recall the day I got the last programmer off SOS and on to
>    EDT, and the CPU load went way down.  Seems SOS must have been quite
>    a compatability mode CPU hog.

We had internal EDI versus EDT editor wars, and EDI was probably 
compatibility mode too.  We only had one SOS diehard but he left the 
company before we got to V4.0.

-- 
Paul Sture