free42bin - program to calculate the cool way
Free42 is a re-implementation of the HP-42S calculator and the HP-82240 printer.
It is a complete rewrite, not using any HP code, and it does not require an
HP-42S ROM image.
Loading and saving programs is possible in all Free42 versions except OS X
Dashboard. The exact process is pretty straightforward in the desktop versions
(Windows, OS X, Linux), but it is a bit more complicated on mobile devices.
vailable via the Info system.