Date   : Thu, 28 Oct 2010 08:21:11 -0500
From   : jules.richardson99@... (Jules Richardson)
Subject: Reversing the Tube ULA (destructively)

J.G.Harston wrote:
> Jules Richardson wrote:
>> The interesting ones might be the Springboards (can't tell from my photos,
>> sadly - I never took snaps of the underside of the boards) and the   
>> A500 "copro version" as they may have done things differently.
> 
> Those are the two CoPros I don't have circuit diagrams for. Anybody
> got a copy?

It's on my to-do list to trace out the Springboards* at some point, once I 
have them over here with me (sometime next year) - it'd be nice to try and 
make them "do something". I need to finish off the '286 trace too (unless 
someone happens to have it anyway?) - I only got half of it done before moving.

I should probably try and do the Cumana 68008 too, but that one's even more 
complex than the 286 :-(

* one's a "PC ARM co-processor", the other a "PC ARM application card", with 
on-board IOC; I've never been certain if they're both technically Springboards 
or not.

cheers

Jules