xrpn 1.6

A full programming language and environment extending the features of the venerable HP calculator programmable calculators. With XRPN you can accomplish a wide range of modern programming tasks as well as running existing HP-41 FOCAL programs directly. XRPN gives modern life to tens of thousands of old HP calculator programs and opens the possibilities to many, many more. New in 1.6: Added the option to use single-quotes for Alpha entry. Added the safety-catch of adding an END to programs that does not have and END as the last line.