hidden directory - hp 28s

[Dave Britten]

(06-07-2015 01:47 PM)Raymond Del Tondo Wrote:  

(06-07-2015 03:57 AM)Jake Schwartz Wrote:  I'd love to know about any relationship to RPL in the 42S, since it was classic RPN. Yeah, I'm sure it has a Saturn processor, but I don't remember every hearing "RPL" and the 42S in the same sentence.

Jake

The 42S actually is an RPL machine running a stripped-down version of the HP 48 OS (or a blown version of the 28S OS) , but it features a different UI than that of the 28/48 machines.

Even the internal matrix functions are nearly the same in the 42S and 48.

Many years ago I made a special 42S version of SAD (a Linux tool from Mika Heiskanen and Jan Brittenson for disassembling Saturn code) , which helped decompiling thousands of entries in the 42S.

This all leads to another interesting question: What would it take to port the 42S user environment to the 48?