PDP-6s at MIT

Adrian Graham witchy at binarydinosaurs.co.uk
Thu Dec 22 18:13:48 CST 2016


On 23/12/2016 00:00, "Noel Chiappa" <jnc at mercury.lcs.mit.edu> wrote:

>> From: Johnny Eriksson
> 
>> From the KI10 and onwards it includes PXCT, since these have the
>> concept of a previous context...
>> Given a pager for the KA10 PXCT would make sense there.
> 
> It turns out the KA ITS machines have an instruction that does roughly the
> same thing, but it's different. Here's the relevant code fragment from
> SYSTEM;ITS >:
> 
>   IFN KA10P,[
> 
>   SUBTTL STUFF PECULIAR TO KA-10 PROCESSOR

<snip>

I love stuff like this and I'm quite miffed that I was born 10 years too
late to see it all as it grew. Of course I'm grateful for what I HAVE seen
over time, but these early years are fascinating to me.

-- 
Adrian/Witchy
Binary Dinosaurs creator/curator
Www.binarydinosaurs.co.uk - the UK's biggest private home computer
collection?




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