No, a CPLD wouldn't do it. The Complex Instruction architecture of the 8085 causes the gate count to be way to high for a CPLD. Even before adding any extended instructions / addressing modes.

Ken

On 5/2/16 3:00 PM, Stephen Adolph wrote:
I think there might be some better low power options now, than years
ago.  I have not looked into it at all.  A CPLD implementation does
not seem likely given the need for DLLs and timing circuits.

Ken might know?


On Mon, May 2, 2016 at 5:40 PM, John R. Hogerhuis <jho...@pobox.com> wrote:

On Mon, May 2, 2016 at 2:38 PM, Stephen Adolph <twospru...@gmail.com> wrote:
I recall now... I knew I had none of the answers but I knew you would!
So, what did you do to create the new instructions?

And I'm interested to hear about the relative power consumption.

-- John.

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