Architecture specifications for calc processors?

[Claudio L.]

(09-29-2017 01:17 PM)n3mmr Wrote:  Well, I'mlooking for the instruction set and adressing structure of the NUT processor and the Saturn, mostly.

The arm.processors have their data sheets and instruction set well visible on the net.

The book by James Donnelly of the HP48 has a whole chapter about Saturn assembly, including all the different opcodes and their explanation.

Here's the free version linked from Joe's website.

EDIT: FYI, I'm directing you to Joe's website because he explains the author gave permission, which may not be clear downloading directly from hpcalc.org.