From: dave@horsfall.org (Dave Horsfall)
Subject: [TUHS] Happy birthday, PDP-8!
Date: Mon, 27 Mar 2017 06:49:30 +1100 (EST) [thread overview]
Message-ID: <alpine.BSF.2.20.1703270626240.63087@aneurin.horsfall.org> (raw)
In-Reply-To: <01db01d2a32a$1eae0280$5c0a0780$@ronnatalie.com>
On Wed, 22 Mar 2017, Ron Natalie wrote:
> Ah yes, the machine with only 8 instructions (of course not counting all
> the multiplexing of OPR).
>
> I was always fond of TAD. Not particularly reentrant version of
> subroutine linkage.
Yep, it could add, but not subtract. Dammit, but I'm trying to think of
the CADET acronym; it went something like "Can't Add, Didn't Even Try".
And as for subroutine calls on the -8, let's not go there... As I dimly
recall, it planted the return address into the first word of the called
routine and jumped to the second instruction; to return, you did an
indirect jump to the first word. Recursion? What was that?
Somewhere out there (tm), is a huge list of computer acronyms (and yes, I
know about "Instant Befuddled Mind", and "I've Been Misled" etc).
--
Dave Horsfall DTM (VK2KFU) "Those who don't understand security will suffer."
next prev parent reply other threads:[~2017-03-26 19:49 UTC|newest]
Thread overview: 21+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-03-21 21:34 Dave Horsfall
2017-03-22 16:34 ` Ron Natalie
2017-03-26 19:49 ` Dave Horsfall [this message]
2017-03-26 20:11 ` Paul Winalski
2017-03-26 22:20 ` Greg 'groggy' Lehey
2017-03-26 22:25 ` Greg 'groggy' Lehey
2017-03-21 23:57 Atindra Chaturvedi
2017-03-27 0:31 Noel Chiappa
2017-03-27 0:37 ` Arthur Krewat
2017-03-27 12:05 ` Tim Bradshaw
2017-03-27 13:35 ` Tony Finch
2017-03-27 21:37 ` Terry Smith
2017-03-27 1:24 Noel Chiappa
2017-03-27 14:07 ` Arthur Krewat
[not found] <mailman.1.1490580001.4973.tuhs@minnie.tuhs.org>
2017-03-27 23:30 ` Johnny Billquist
2017-03-27 23:33 ` Steve Nickolas
2017-03-27 23:49 ` Johnny Billquist
2017-03-28 2:38 Noel Chiappa
[not found] <mailman.659.1490686648.3779.tuhs@minnie.tuhs.org>
2017-03-28 22:10 ` Johnny Billquist
2018-03-21 21:52 Dave Horsfall
2018-03-21 21:59 ` George Michaelson
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=alpine.BSF.2.20.1703270626240.63087@aneurin.horsfall.org \
--to=dave@horsfall.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).