From mboxrd@z Thu Jan  1 00:00:00 1970
From: dave@horsfall.org (Dave Horsfall)
Date: Mon, 27 Mar 2017 06:49:30 +1100 (EST)
Subject: [TUHS] Happy birthday, PDP-8!
In-Reply-To: <01db01d2a32a$1eae0280$5c0a0780$@ronnatalie.com>
References: <alpine.BSF.2.20.1703220834170.63087@aneurin.horsfall.org>
 <01db01d2a32a$1eae0280$5c0a0780$@ronnatalie.com>
Message-ID: <alpine.BSF.2.20.1703270626240.63087@aneurin.horsfall.org>

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."