a41cv is my open source simulator of the legendary HP41CV RPN calculator. The first production version of a41cv was released in February 2011. Nearly all of the orriginal HP41CV functions are implemented.
The calculator differs from the HP41CV in the following ways:
No definition of number of register
Programmes can not be assigned to keys (working on that)
Not all special flags implemented
Number of programme lines only limited by phone memory
Only a simple programme editor (by now) but full import / export of programmes on cvs format
No numeric input in USER mode (working on that to)