[Info-vax] OT: PDP-11 history in arstechnica

[Bob Eager]

On Thu, 17 Mar 2022 00:07:07 +0000, chris wrote:

> Yes the basic loop is just 2 lines, ignoring initialisation, but the
> point is that that instruction was pretty high level for a machine that
> must have been designed around 1968.
> 
> Do have the 1970 11/05 and 11/10 handbook and it was just the those two
> that lacked the sob instruction.

11/20 didn't have it either. Very early PDP-11, and my first one.
I think there were others...I have a pretty complete set of handbooks 
here but it's not worth poring through them!
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