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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 | 2025-09-04 07:48 -0700 |
| Organization | A noiseless patient Spider |
| Message-ID | <20250904074825.0000202b@gmail.com> (permalink) |
| References | (9 earlier) <108o2mn$vok4$3@dont-email.me> <3kp5olxb8d.ln2@Telcontar.valinor> <108pdt7$19vio$2@dont-email.me> <lRh*luGlA@news.chiark.greenend.org.uk> <109ahrs$1emq7$1@dont-email.me> |
Cross-posted to 2 groups.
On Wed, 3 Sep 2025 23:09:49 -0000 (UTC) Lawrence D’Oliveiro <ldo@nz.invalid> wrote: > Apple managed it without DMA. And remember their floppies had higher > capacity than IBM’s. 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.
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Re: Hmmm ... Downloaded Xenix - But It's *41* Floppies Worth Theo <theom+news@chiark.greenend.org.uk> - 2025-09-03 11:10 +0100
Re: Hmmm ... Downloaded Xenix - But It's *41* Floppies Worth The Natural Philosopher <tnp@invalid.invalid> - 2025-09-03 11:55 +0100
Re: Hmmm ... Downloaded Xenix - But It's *41* Floppies Worth antispam@fricas.org (Waldek Hebisch) - 2025-09-03 14:13 +0000
Re: Hmmm ... Downloaded Xenix - But It's *41* Floppies Worth Lawrence D’Oliveiro <ldo@nz.invalid> - 2025-09-03 23:11 +0000
Re: Hmmm ... Downloaded Xenix - But It's *41* Floppies Worth Alexander Schreiber <als@usenet.thangorodrim.de> - 2025-09-04 10:10 +0200
Re: slow computers, Hmmm ... Downloaded Xenix - But It's *41* Floppies Worth John Levine <johnl@taugh.com> - 2025-09-06 17:38 +0000
Re: slow computers, Hmmm ... Downloaded Xenix - But It's *41* Floppies Worth Peter Flass <Peter@Iron-Spring.com> - 2025-09-06 15:16 -0700
Re: slow computers, Hmmm ... Downloaded Xenix - But It's *41* Floppies Worth John Levine <johnl@taugh.com> - 2025-09-06 22:39 +0000
Re: slow computers, Hmmm ... Downloaded Xenix - But It's *41* Floppies Worth geodandw <geodandw@gmail.com> - 2025-09-06 18:46 -0400
Re: slow computers, Hmmm ... Downloaded Xenix - But It's *41* Floppies Worth John Levine <johnl@taugh.com> - 2025-09-06 23:00 +0000
Re: slow computers, Hmmm ... Downloaded Xenix - But It's *41* Floppies Worth geodandw <geodandw@gmail.com> - 2025-09-07 15:57 -0400
Re: slow computers, Hmmm ... Downloaded Xenix - But It's *41* Floppies Worth geodandw <geodandw@gmail.com> - 2025-09-06 18:48 -0400
Re: slow computers, Hmmm ... Downloaded Xenix - But It's *41* Floppies Worth c186282 <c186282@nnada.net> - 2025-09-07 04:11 -0400
Re: slow computers, Hmmm ... Downloaded Xenix - But It's *41* Floppies Worth Dan Espen <dan1espen@gmail.com> - 2025-09-07 14:43 -0400
Re: slow computers, Hmmm ... Downloaded Xenix - But It's *41* Floppies Worth Peter Flass <Peter@Iron-Spring.com> - 2025-09-08 08:10 -0700
Re: Hmmm ... Downloaded Xenix - But It's *41* Floppies Worth Lawrence D’Oliveiro <ldo@nz.invalid> - 2025-09-03 23:09 +0000
Re: Hmmm ... Downloaded Xenix - But It's *41* Floppies Worth John Ames <commodorejohn@gmail.com> - 2025-09-04 07:48 -0700
Re: Hmmm ... Downloaded Xenix - But It's *41* Floppies Worth Lawrence D’Oliveiro <ldo@nz.invalid> - 2025-09-04 20:51 +0000
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