homebrewed 32-bit cpu?

Grant Stockly grant at stockly.com
Tue Apr 3 01:49:05 CDT 2007


>Nifty!  I entered the ALU and part of the control board entered into
>gschem with the same intent.  Perhaps we could collaborate on that later
>on.  I made some alterations to allow use of a bog-standard VME chassis.

Sure.  I still don't quite understand everything about the user modes or 
addressing.  Its possible that it I understand it and just don't think it 
could be that simple.  : )

>On one of the pages linked from the homebrewcpu.org page is a project that
>uses surface-mount transistors on what amount to tiny flipchips.  If
>you're insane enough to try a discrete 8080, go with that approach.

I saw that.  If I were to do anything like that I would want it to be an 
educational tool.  And for people who want to build it for fun, art.  The 
thing needs to lay flat so it could hang on a wall.

Don't tell me you wouldn't want to hang CP/M on the wall...  : )

>At that rate, the complete machine might demand 20 amps or more.

Sure.  And with a 5MHz clock it would multiply at the speed of a 100MHz+ 
486.  : )

>At least I'd like to have LED displays for each bus, each flag, and each
>register.

In a little Altair 680 sized box!

Grant



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