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From: Lawrence D'Oliveiro <ldo@nz.invalid>
Newsgroups: comp.arch
Subject: Re: ancient OS history, ARM is sort of channeling the IBM 360
Date: Tue, 2 Jul 2024 03:03:16 -0000 (UTC)
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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.