CS/80 disc geometry

[Tony Duell]

> It is creeping up on my interest list. This sort of started when
> I won what turned out to be an incomplete HP PASCAL 2.0 source
> document set on ebay a few weeks ago. There is ALMOST enough
> information there to start on a simulation of the HP 9000/200
> series, which is the most simple of the 68K machines that HP
> built. So I've been digging around seeing what I can learn about
> the 200 and 300 series over the past few weeks (DIO cards, et al)

It probably won't happen soon enough to help you, but as you know I've 
been tracing out schematics of some of the HP machines... There's a 9836 
(and for that matter that 50960 I mentioned the other day) on the 'to be 
pulled apart' pile. I must finish the 9845B and its monitor first, then I 
might well turn to one of the 68K machines...

-tony