The very essence of programming is go to and address arithmetic. That was
the dramatic breakthrough of stored programming vs card programming in the
early fifties. You could loop with a Card programmed Calculator by pulling
the cards out of the stacker, substituting some new entries at the bottom of
the calculations and then putting the deck back through. But with the
arrival on the commercial scene of the Univac and the IBM 701 you could loop
by doing arithmetic on an address since it was just another number stored in
a register. (The big argument among the two schools of programmers of that
day was if TRF was superior to JUMP. TRF was the IBM version of GOTO while
JUMP was the Univac version). In the late fifties Fortran was hard to learn
because you could not access the addresses directly and had to trust the
language to take care of that sort of thing. There were several independent
modifications to Fortran to give what is approximately the "Exit" in modern
languages - and that is nothing more or less than a GOTO. Real programmers
modify addresses and use many GOTOs. That way they have a job forever :)
BobJ
----- Original Message -----
From: "Peter D Olson" <[EMAIL PROTECTED]>
To: <[email protected]>
Sent: Wednesday, December 29, 2004 7:44 AM
Subject: RE: [U2] LOOP or GOTO on READNEXT
if you venture deep into some of the low level time functions in *nix (
aka C code).... you'll find goto's...
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