Re: HP65 program cards compatibility Message #3 Posted by aurelio on 4 May 2012, 4:43 a.m., in response to message #2 by Ignazio Cara (Italy)
Thank-you it helps, apologize to have not read first, before to ask, here, on the museum, : "Fully merged keycodes: A function could require three keystrokes but still fit on one line. This was achieved by using 8 rather than 6 bit instruction words allowing 256 distinct operations.".....i is written just at the beginning of HP67 description.....
Cheers
|