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From: Clem Cole <>
To: Tom Manos <>
Subject: Re: [TUHS] efl(1) anyone?
Date: Thu, 16 Dec 2021 17:38:02 -0500	[thread overview]
Message-ID: <> (raw)
In-Reply-To: <>

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Not,  trying to discourage anyone from messing with simh and one of the old
UNIX systems - looking at the past.  But to be honest at this stage of the
game there is nothing in EFL that I know of that modern Fortran can not
do.  And if you want to see how the world has progressed since F4, and you
have a Mac, Linux or Windows box -- the entire Intel compiler suite,
including their Fortran 2018 compatible system can be downloaded for free
--  Intel OneAPI HPC Toolkit Download
This is the compiler many (most) supercomputer codes use - why is a good
COFF discussion ;-)

For the youngsters that never saw it, is a piece of F4 code [the Intel
compiler can still gork it BTW], which we call the 'Eklund Test' as Dave
Eklund was Mr. Fixed format for both DEC and Intel starting in the early
1970s until he retired 5 years ago [note Dave did not write this - came
from Europe but is now part of the Intel compiler test suite].

C    This FORTRAN program may be compiled and run on a Norsk Data
C    computer running SINTRAN and the FTN compiler.  It uses only
C    FORTRAN reserved words, and contains just one numerical
C    constant, in a character string (a format specifier).  When
C    you run it, it prints a well known mathematical construct...
C    Even FORTRAN is a block structured programming language:

On Thu, Dec 16, 2021 at 12:57 PM Tom Manos <> wrote:

> I'm late to the party here. Although I'm a gray hair, I didn't start using
> UNIX until the early '80s, and though I've seen, and been curious about
> efl, I've never used it. Fortran 4 was my first high-level language in
> college in the '70s.
> That said, I do remember efl being on an early PC based UNIX - Microport
> SVR2. On later Microport UNIXen it was gone, but I can't remember whether
> it disappeared on SVR3 or 4.
> I currently play with 4.3BSD Quasijarus system on simh, which has efl.
> What a fun system to play with! Maybe I'll give efl a try if I can find
> enough docs to grok it.
> Tom
> ----
> Tom Manos
> On Wed, Dec 15, 2021 at 3:49 AM <> wrote:
>> Hi TUHS folks!
>> After having reincarnated ratfor, I am wondering about Stuart Feldman's
>> efl (extended fortran language). It was a real compiler that let you
>> define structs, and generated more or less readable Fortran code.
>> I have the impression that it was pretty cool, but that it just didn't
>> catch on.  So:
>> - Did anyone here ever use it personally?
>> - Is my impression that it didn't catch on correct? Or am I ignorant?
>> Thoughts etc. welcome. :-)
>> Thanks,
>> Arnold

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  reply	other threads:[~2021-12-16 22:39 UTC|newest]

Thread overview: 5+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-12-15  8:44 arnold
2021-12-15 16:25 ` John Cowan
2021-12-16 17:56 ` Tom Manos
2021-12-16 22:38   ` Clem Cole [this message]
2021-12-16 23:41   ` Tom Manos

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