Windows Reverse Polish Notation (WRPN) is a public domain calculator for Microsoft Windows that is modeled after the Hewlett-Packard HP-16c. This is not a Hewlett-Packard product.
WRPN uses Reverse Polish Notation, which uses the ENTER key instead of the "=" (equals) key.
* Floating point, Decimal, Hexadecimal, Octal, and Binary modes
* Word sizes from 1-64 bits per word
* Signed math (1's complement, 2's complement, unsigned)
* Logical operators (and, or, xor, not, masks, etc.)
* Bit-wise operators (shift, rotate, rotate with carry, etc.)
* 32 storage registers
* 4 position stack
* 203 lines of program memory