i wrote a functioning 20 digit bcd library with trig functions. i put some of these into a windows demo of what the calculator might be like. if interested, get the windows binary here; www.voidware.com/tmp/rpndemo.zip
unfortunately, no one seemed to be able to make a decision on how the buttons should be laid out. my take was that i am happy to help write the software but i don’t have time to drive the decision process.
the other thing was that i didn’t really want to write the rpl system. the problem was over just how compatible it was supposed to be to the hp one. i didn’t like the idea of 100% compatibility because then you’re just reimplementing an hp. and on the other hand, i personally have never been a real big fan of rpl. i would prefer to see something like 71b basic which was really easy to work with.
on the hardware side, i don’t have a strong preference as long as it works. although i did expect someone to, at least, make a prototype board with a display and maybe get it to add numbers or something.
otherwise what are you doing.
