Architecture specifications for calc processors?

[mfleming]

(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.

Have a look at Monte's site for the 41CL NUT implementation in Verilog: http://systemyde.com/hp41/index.html

The Manuals and Hardware sections have technical information on the nut processor and instruction set. There are also a number of books (e.g. MCODE for Beginners) as well as software development systems available for the nut. Try the collection on USB flash available from MoHPC. The hp41 (TOS) web site has quite a bit of related material. The open source implementations of the hp41 calculator emulators might also be a useful resource.

~Mark