Carl Lowenstein wrote:
numbers) are in columns 1-5, continuation symbol column 6, and code
starts in column 7.
Whatever, you nit picker. ;-)
By the way, the reason that columns 73-70 were ignored by the FORTRAN
compiler is that the original computer-attached card reader was made
for the purpose of loading 36-bit memory two words at a time, so it
had only 72 active read positions.
I find that doubtful, given the original card reader had more than one
bit per column. 73-80 were always (in my experience) used for card
sequence numbers. Heck, we had a desk-sized machine whose only job was
to punch sequence numbers in those columns, built before (afaik) FORTRAN
was invented. :-) Perhaps in FORTRAN 1 days, there were hardware reasons
for certain columns meaning certain things, but I never saw any of them.
--
Darren New / San Diego, CA, USA (PST)
It's not feature creep if you put it
at the end and adjust the release date.
--
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