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From: John Ames <commodorejohn@gmail.com>
Newsgroups: comp.os.linux.misc,alt.folklore.computers
Subject: Re: Hmmm ... Downloaded Xenix - But It's *41* Floppies Worth
Date: Thu, 4 Sep 2025 07:48:25 -0700
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On Wed, 3 Sep 2025 23:09:49 -0000 (UTC)
Lawrence D=E2=80=99Oliveiro <ldo@nz.invalid> wrote:

> Apple managed it without DMA. And remember their floppies had higher=20
> capacity than IBM=E2=80=99s.

True, but it's much harder to do precise timing on an 8088 than a 6502;
the combination of prefetch queue obscurity (which *is* calculable, in
a sufficiently tight loop) and DRAM refresh (which isn't) yields a lot
of uncertainty wrt. real-world execution times.