AMD bit-slice machines

e.stiebler emu at
Sat Dec 31 11:54:51 CST 2005

Jan-Benedict Glaw wrote:
> On Sat, 2005-12-31 09:10:35 -0700, e.stiebler <emu at> wrote:
>>Richard wrote:
>>>This is really interesting!  I had no idea that DEC used them for some
>>>of their processors -- personally I find that fascinating as I always
>>>pictured DEC as a "NIH" shop.
>>The am2901 is just a chip. The smarts are in the microcode ;-)
> Is there some really interesting documentation available for these
> chips and maybe some microcode for some really simple task?  

AMD: The Am2900 Family Data Book
AMD: Bipolar Microprocessor Logic and Interface
John Mick & James Brick : Bit-Slice Microprocessor Design (Black 
Bit-Slice Bible)
Donnamaie E.White : Bit-Slice Design: Controller and ALUs (Red Bit-Slice 

> I'd like
> to really understand how bit-slice CPUs do work to form something like
> a VAX CPU.

If you have a VAX730, you have already everything you need ;-)

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