Re: ancient OS history, ARM is sort of channeling the IBM 360

On Tue, 2 Jul 2024 01:02:07 -0000 (UTC), John Levine wrote:

According to Lawrence D'Oliveiro  <ldo@nz.invalid>:

>

Again, it depends.  For COBOL, you didn't have to specify anything.
The compiler set up everything for you for you, and it "just worked".

>
Maybe it didn’t. Given the way locate-mode I/O is set up, it should
automatically fall back to copy-mode if the conditions are not right.
So maybe you were in fact using copy-mode, not locate-mode, most of the
time, without realizing it.

 
You know, you could admit that just once you're wrong.

Admit that you never checked whether locate mode was actually engaged or
not. You just assumed that it was.