homebrewed 32-bit cpu?

[woodelf]

Grant Stockly wrote:
> I've thought about it.  I actually entered half the schematics for the 
> Magic-1 into my schematic program.  I was going to produce some PCBs for 
> it for a kit.  I ended up giving up because I needed to spend time on 
> the Altair effort.
> 
> A goal of mine would probably be a TTL 8080 or completely a 
> transistorized  (as in pbysical little black dots : )  ) 8080.  The idea 
> behind that is it could be an extension to the Altair kit...

See Bitsavers, under AMD you have a 2901 version of the 8080.
The only hard work is the PCB and getting the software/microcode
compiled.

> I have thought about a 32 bit CPU built like the Magic 1, and in fact 
> drew up the schematic for the ALU.  I thought it would be fun to build a 
> computer using parts available in 1975 that was capable of decoding an 
> MP3.  For speed designed a schematic for a 32x32 combinatorial 
> multiplier.  :)  I think I estimated it would draw 5A (just the 
> multiplier)...  ; )

> The 8080/transistor computer would have an LED for every transistor.  
> Can you imagine how cool it would be to single step that thing?  : )
A PDP-8 Style computer you might be able to build.
OH - Heck ... Just mass produce HAL-9000 from 2001. It may be better
logic than TODAY's AI stuff.

> Grant
>