AVR-Chat

If it's any help, in respect of the facilities offered by calculators 
when using binary functions, the Casio fx-992s can perform binary 
functions using up to 32 bits. The display can only display 8 bits, but 
you scroll through 4 screens to show the rest of the bits. There are 
single keypress functions for NOT, AND, OR, XNOR and NEG.
I have a more recent model that is programmable, but the fx-992s is very 
handy with the single keypress access to the functions.

Regards.
Doug Locke.