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Groups > alt.folklore.computers > #218543
| From | Rich Alderson <news@alderson.users.panix.com> |
|---|---|
| Newsgroups | alt.folklore.computers |
| Subject | Re: sixbit, the wonders of SABRE, was Magnetic Drum reservations 1952 |
| Date | 2021-07-26 18:45 -0400 |
| Organization | PANIX Public Access Internet and UNIX, NYC |
| Message-ID | <mdd1r7ku21u.fsf@panix5.panix.com> (permalink) |
| References | (2 earlier) <xihKI.52335$h8.43714@fx47.iad> <sdkis8$u3r$4@dont-email.me> <sdkk34$f3a$1@gal.iecc.com> <sdlhe8$ho3$1@newsreader4.netcologne.de> <sdm5rv$cn7$1@dont-email.me> |
gareth evans <headstone255@yahoo.com> writes:
> On 26/07/2021 06:32, Thomas Koenig wrote:
> > John Levine <johnl@taugh.com> schrieb:
> >
> >> The DEC assemblers used an even more compressed encoding known as
> >> RADIX50 or SQUOZE, which had six characters from a 40 character (50
> >> octal) set encoded into 32 bits with four left over for flags.
> >
> > Wow, division for accessing text..., on the other hand, not worse
> > than formatting a decimal number. Tt seems they carried it over
> > to 16-bit words containing three characters each to the PDP-11 and
> > the VAX, too, from what https://en.wikipedia.org/wiki/DEC_RADIX_50
> > tells us. Still 1536 values left over as flags even in that case
> > (a bit more than 10 bits).
> >
> >> I
> >> gather there was a BCD-based SQUOZE used on IBM machines in the 1950s.
> >
> > Yep, for the 36-bit machines, but it appears they didn't carry
> > over the system to the /360 series.
> >
>
> For the PDP11, it was .RAD40, up to 6 characters in 32 bits
> (or 3 in 16 bits), A-Z, 0-9, ".", "$" and " "
As Mr. Levine noted, 40_10 = 50_8. It's the same thing, under different names.
--
Rich Alderson news@alderson.users.panix.com
Audendum est, et veritas investiganda; quam etiamsi non assequamur,
omnino tamen proprius, quam nunc sumus, ad eam perveniemus.
--Galen
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Magnetic Drum reservations 1952 undefined Hancock-4 <hancock4@bbs.cpcn.com> - 2021-07-20 12:14 -0700
Re: the wonders of SABRE, was Magnetic Drum reservations 1952 John Levine <johnl@taugh.com> - 2021-07-21 01:46 +0000
Re: the wonders of SABRE, was Magnetic Drum reservations 1952 David Lesher <wb8foz@panix.com> - 2021-07-22 14:46 +0000
Re: the wonders of SABRE, was Magnetic Drum reservations 1952 chris <chris-nospam@tridac.net> - 2021-07-22 17:37 +0100
Re: the wonders of SABRE, was Magnetic Drum reservations 1952 scott@slp53.sl.home (Scott Lurndal) - 2021-07-22 16:47 +0000
Re: the wonders of SABRE, was Magnetic Drum reservations 1952 Andy Burns <usenet@andyburns.uk> - 2021-07-22 17:51 +0100
Re: the wonders of SABRE, was Magnetic Drum reservations 1952 John Levine <johnl@taugh.com> - 2021-07-22 17:25 +0000
Re: the wonders of SABRE, was Magnetic Drum reservations 1952 Ahem A Rivet's Shot <steveo@eircom.net> - 2021-07-22 18:10 +0100
Re: the wonders of SABRE, was Magnetic Drum reservations 1952 Charlie Gibbs <cgibbs@kltpzyxm.invalid> - 2021-07-23 00:13 +0000
Re: the wonders of SABRE, was Magnetic Drum reservations 1952 TrailingEdgeTechnologies <bbreynolds@aol.com> - 2021-07-22 19:32 -0700
Re: the wonders of SABRE, was Magnetic Drum reservations 1952 TrailingEdgeTechnologies <bbreynolds@aol.com> - 2021-07-22 19:44 -0700
Re: the wonders of SABRE, was Magnetic Drum reservations 1952 Dan Espen <dan1espen@gmail.com> - 2021-07-22 15:14 -0400
Re: the wonders of SABRE, was Magnetic Drum reservations 1952 Ahem A Rivet's Shot <steveo@eircom.net> - 2021-07-22 20:52 +0100
Re: the wonders of SABRE, was Magnetic Drum reservations 1952 Dan Espen <dan1espen@gmail.com> - 2021-07-22 17:05 -0400
Re: the wonders of SABRE, was Magnetic Drum reservations 1952 Quadibloc <jsavard@ecn.ab.ca> - 2021-07-23 09:13 -0700
Re: the wonders of SABRE, was Magnetic Drum reservations 1952 undefined Hancock-4 <hancock4@bbs.cpcn.com> - 2021-07-23 11:48 -0700
Re: the wonders of SABRE, was Magnetic Drum reservations 1952 Robin Vowels <robin.vowels@gmail.com> - 2021-07-23 20:13 -0700
Re: the wonders of SABRE, was Magnetic Drum reservations 1952 Charlie Gibbs <cgibbs@kltpzyxm.invalid> - 2021-07-24 21:35 +0000
Re: the wonders of SABRE, was Magnetic Drum reservations 1952 Andy Burns <usenet@andyburns.uk> - 2021-07-22 21:10 +0100
Re: the wonders of SABRE, was Magnetic Drum reservations 1952 Grant Taylor <gtaylor@tnetconsulting.net> - 2021-07-22 14:16 -0600
Re: the wonders of SABRE, was Magnetic Drum reservations 1952 Dan Espen <dan1espen@gmail.com> - 2021-07-22 17:08 -0400
Re: the wonders of SABRE, was Magnetic Drum reservations 1952 TrailingEdgeTechnologies <bbreynolds@aol.com> - 2021-07-22 20:08 -0700
Re: the wonders of SABRE, was Magnetic Drum reservations 1952 scott@slp53.sl.home (Scott Lurndal) - 2021-07-23 16:18 +0000
Re: the wonders of SABRE, was Magnetic Drum reservations 1952 Louis Krupp <lkrupp@invalid.pssw.com.invalid> - 2021-07-24 11:54 -0600
Re: the wonders of SABRE, was Magnetic Drum reservations 1952 Vir Campestris <vir.campestris@invalid.invalid> - 2021-07-25 21:51 +0100
Re: sixbit, the wonders of SABRE, was Magnetic Drum reservations 1952 John Levine <johnl@taugh.com> - 2021-07-25 21:12 +0000
Re: sixbit, the wonders of SABRE, was Magnetic Drum reservations 1952 Thomas Koenig <tkoenig@netcologne.de> - 2021-07-26 05:32 +0000
Re: sixbit, the wonders of SABRE, was Magnetic Drum reservations 1952 Bob Eager <news0009@eager.cx> - 2021-07-26 08:39 +0000
Re: sixbit, the wonders of SABRE, was Magnetic Drum reservations 1952 gareth evans <headstone255@yahoo.com> - 2021-07-26 12:21 +0100
Re: sixbit, the wonders of SABRE, was Magnetic Drum reservations 1952 Rich Alderson <news@alderson.users.panix.com> - 2021-07-26 18:45 -0400
Re: sixbit, the wonders of SABRE, was Magnetic Drum reservations 1952 gareth evans <headstone255@yahoo.com> - 2021-07-27 11:29 +0100
Re: the wonders of SABRE, was Magnetic Drum reservations 1952 TrailingEdgeTechnologies <bbreynolds@aol.com> - 2021-07-22 19:43 -0700
Re: the wonders of SABRE, was Magnetic Drum reservations 1952 undefined Hancock-4 <hancock4@bbs.cpcn.com> - 2021-07-23 11:46 -0700
Re: the wonders of SABRE, was Magnetic Drum reservations 1952 undefined Hancock-4 <hancock4@bbs.cpcn.com> - 2021-07-23 11:56 -0700
Re: the wonders of SABRE, was Magnetic Drum reservations 1952 Peter Flass <peter_flass@yahoo.com> - 2021-07-23 16:27 -0700
Re: the wonders of SABRE, was Magnetic Drum reservations 1952 undefined Hancock-4 <hancock4@bbs.cpcn.com> - 2021-08-07 12:38 -0700
Re: the wonders of SABRE, was Magnetic Drum reservations 1952 Thomas Koenig <tkoenig@netcologne.de> - 2021-08-07 20:04 +0000
Re: the wonders of SABRE, was Magnetic Drum reservations 1952 "Kerr-Mudd, John" <admin@127.0.0.1> - 2021-08-07 22:24 +0100
Re: the wonders of SABRE, was Magnetic Drum reservations 1952 "Kerr-Mudd, John" <admin@127.0.0.1> - 2021-08-07 22:27 +0100
Re: the wonders of SABRE, was Magnetic Drum reservations 1952 undefined Hancock-4 <hancock4@bbs.cpcn.com> - 2021-08-10 11:49 -0700
Re: the wonders of SABRE, was Magnetic Drum reservations 1952 J. Clarke <jclarke.873638@gmail.com> - 2021-08-10 15:34 -0400
Re: the wonders of SABRE, was Magnetic Drum reservations 1952 Robin Vowels <robin.vowels@gmail.com> - 2021-08-07 18:13 -0700
Re: the wonders of SABRE, was Magnetic Drum reservations 1952 undefined Hancock-4 <hancock4@bbs.cpcn.com> - 2021-08-10 11:45 -0700
Re: the wonders of SABRE, was Magnetic Drum reservations 1952 Robin Vowels <robin.vowels@gmail.com> - 2021-08-11 06:36 -0700
Re: the wonders of SABRE, was Magnetic Drum reservations 1952 Peter Flass <peter_flass@yahoo.com> - 2021-08-11 08:00 -0700
Re: the wonders of SABRE, was Magnetic Drum reservations 1952 Peter Flass <peter_flass@yahoo.com> - 2021-08-10 10:57 -0700
Re: the wonders of SABRE, was Magnetic Drum reservations 1952 Charlie Gibbs <cgibbs@kltpzyxm.invalid> - 2021-08-10 18:29 +0000
Re: the wonders of SABRE, was Magnetic Drum reservations 1952 undefined Hancock-4 <hancock4@bbs.cpcn.com> - 2021-08-10 11:54 -0700
Re: the wonders of SABRE, was Magnetic Drum reservations 1952 scott@slp53.sl.home (Scott Lurndal) - 2021-08-10 19:44 +0000
Re: the wonders of SABRE, was Magnetic Drum reservations 1952 undefined Hancock-4 <hancock4@bbs.cpcn.com> - 2021-08-13 12:26 -0700
Re: the wonders of SABRE, was Magnetic Drum reservations 1952 Anne & Lynn Wheeler <lynn@garlic.com> - 2021-08-13 09:49 -1000
Re: the wonders of SABRE, was Magnetic Drum reservations 1952 undefined Hancock-4 <hancock4@bbs.cpcn.com> - 2021-08-16 12:52 -0700
Re: the wonders of SABRE, was Magnetic Drum reservations 1952 scott@slp53.sl.home (Scott Lurndal) - 2021-08-16 20:06 +0000
Re: the wonders of SABRE, was Magnetic Drum reservations 1952 Charlie Gibbs <cgibbs@kltpzyxm.invalid> - 2021-08-16 23:31 +0000
Re: the wonders of SABRE, was Magnetic Drum reservations 1952 scott@slp53.sl.home (Scott Lurndal) - 2021-08-17 15:41 +0000
Re: the wonders of SABRE, was Magnetic Drum reservations 1952 scott@slp53.sl.home (Scott Lurndal) - 2021-08-18 16:38 +0000
Re: the wonders of SABRE, was Magnetic Drum reservations 1952 "Kerr-Mudd, John" <admin@127.0.0.1> - 2021-08-18 18:29 +0100
Re: the wonders of SABRE, was Magnetic Drum reservations 1952 Anne & Lynn Wheeler <lynn@garlic.com> - 2021-07-27 18:12 -1000
Re: the wonders of SABRE, was Magnetic Drum reservations 1952 Anne & Lynn Wheeler <lynn@garlic.com> - 2021-07-27 18:49 -1000
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