Structured Fortran - was Re: Self modifying code, lambda calculus
cclist at sydex.com
Thu Sep 24 15:10:10 CDT 2015
On 09/24/2015 12:12 PM, Rich Alderson wrote:
> Wasn't there? I realize that the 1410 was not code compatible with
> the 1401, but the architectures are similar enough that I would
> expect them to have similar compilers. I know that the 1401 had a
> FORTRAN IV compiler, because that was my first computer and first
> language, back in the spring of 1969.
It's a bit complicated. There were actually two standards: X3.9-1966
and X3.10-1966. Exactly contemporaneous; one is "USA Standard FORTRAN"
and the other "USA Standard Basic FORTRAN"; the latter intended for
smaller machines, so the list of features is reduced. Both were ANSI
S/360 had compilers for both varieties. The 1410/7010 FORTRAN described
in C28-0328-1 on first glance, appears to comply with ANSI Basic
FORTRAN. Certainly more F66-like than, say, 7090 FORTRAN II or 1620
FORTRAN II. No "READ INPUT TAPE" nonsense, nor punching "B" in column
1 to get logical expressions.
Both the usual and the basic varieties of FORTRAN are mentioned here:
The surprising thing is how spare the ANSI document is: 36 pages,
Compare to, say, F95...
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