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Groups > alt.sys.pdp10 > #9955
| From | Rich Alderson <news@alderson.users.panix.com> |
|---|---|
| Newsgroups | alt.sys.pdp10 |
| Subject | Re: Accumulator naming |
| Date | 2026-07-30 18:41 -0400 |
| Organization | PANIX Public Access Internet and UNIX, NYC |
| Message-ID | <mddy0esje1q.fsf@panix5.panix.com> (permalink) |
| References | <87wlulwflh.fsf@atr2.ath.cx> <mdd33x9cbvq.fsf@panix5.panix.com> <87se579i01.fsf@atr2.ath.cx> <mddqzklxxa5.fsf_-_@panix5.panix.com> <yTJaS.915$bZ8b.769@fx01.iad> |
scott@slp53.sl.home (Scott Lurndal) writes:
> Rich Alderson <news@alderson.users.panix.com> writes:
>> jayjwa <jayjwa@atr2.ath.cx.invalid> writes:
>>> Rich Alderson <news@alderson.users.panix.com> writes:
>>>> TDNE is a hardware instruction.
>>> Noted. It would be easier to see their usage if the accumulators had names
>>> that didn't exactly resemble numbers ( for example: rax, rbx, rcx, etc)
^^^^^^^^^^^^^
>>> instead of 1, 2, 3, etc. I had misunderstood what that instuction operated
>>> on.
>> So this has been percolating for a few days. I finally went off and found a
>> book on X86/X64 assembly language programming to be certain, because I
>> haven't looked at the 8080/Z80 architecture in a very very long time.
> The 8080 architecture has been obsolete for quite some time; if you're
> looking for architectures contemporaneous with the PDP-6/10/DS20, perhaps
> the Burroughs medium systems would be a better comparison.
No, Scott, I wasn't looking for contemporaries of the PDP-6, I was speaking to
a programmer who is familiar with the Intel-originated family of microprocessors
who is teaching himself PDP-10 assembler language programming, and who brought
up the naming convention for Intel etc. processor registers.
--
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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Fizz Buzz jayjwa <jayjwa@atr2.ath.cx.invalid> - 2026-07-23 17:39 -0400
Re: Fizz Buzz Rich Alderson <news@alderson.users.panix.com> - 2026-07-23 23:19 -0400
Re: Fizz Buzz jayjwa <jayjwa@atr2.ath.cx.invalid> - 2026-07-25 12:00 -0400
Re: Fizz Buzz Rich Alderson <news@alderson.users.panix.com> - 2026-07-25 18:05 -0400
Re: Fizz Buzz jayjwa <jayjwa@atr2.ath.cx.invalid> - 2026-07-26 11:12 -0400
Accumulator naming Rich Alderson <news@alderson.users.panix.com> - 2026-07-29 18:10 -0400
Re: Accumulator naming scott@slp53.sl.home (Scott Lurndal) - 2026-07-30 15:14 +0000
Re: old architectures, was Accumulator naming John Levine <johnl@taugh.com> - 2026-07-30 20:40 +0000
Re: Accumulator naming Rich Alderson <news@alderson.users.panix.com> - 2026-07-30 18:41 -0400
Re: Accumulator naming jayjwa <jayjwa@atr2.ath.cx.invalid> - 2026-07-30 11:24 -0400
Re: Accumulator naming scott@slp53.sl.home (Scott Lurndal) - 2026-07-30 16:03 +0000
Re: Accumulator naming Rich Alderson <news@alderson.users.panix.com> - 2026-07-30 18:56 -0400
Re: Accumulator naming cross@spitfire.i.gajendra.net (Dan Cross) - 2026-07-30 23:48 +0000
Re: Accumulator naming John Levine <johnl@taugh.com> - 2026-07-31 01:31 +0000
Re: Accumulator naming cross@spitfire.i.gajendra.net (Dan Cross) - 2026-07-31 02:52 +0000
Re: Accumulator naming John Levine <johnl@taugh.com> - 2026-07-31 03:36 +0000
Re: Accumulator naming Lars Brinkhoff <lars.spam@nocrew.org> - 2026-07-31 13:40 +0000
Re: Accumulator naming Lars Brinkhoff <lars.spam@nocrew.org> - 2026-07-31 13:35 +0000
the Ten Heavenly Stems (was Re: Accumulator naming) Kragen Javier Sitaker <kragen@canonical.org> - 2026-09-11 16:07 -0300
Re: the Ten Heavenly Stems (was Re: Accumulator naming) Johann 'Myrkraverk' Oskarsson <johann@myrkraverk.invalid> - 2026-09-14 01:12 +0800
Re: the Ten Heavenly Stems (was Re: Accumulator naming) Kragen Javier Sitaker <kragen@canonical.org> - 2026-09-14 14:40 -0300
Re: the Ten Heavenly Stems (was Re: Accumulator naming) scott@slp53.sl.home (Scott Lurndal) - 2026-09-14 18:09 +0000
Re: the Ten Heavenly Stems (was Re: Accumulator naming) quadibloc@invalid.com (John Savard) - 2026-10-26 03:00 +0000
Re: Fizz Buzz "Kerr-Mudd, John" <admin@127.0.0.1> - 2026-08-21 13:27 +0100
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