I've written a little applet to assist in programming the CPU-XA.  As I
writing for my CPU-XA I found that I had to keep notes on what
variables/timers/etc.. were being used and why.  At first I was writing
on a piece of paper but of course I lost my notes.

So I created CPN, it helps keep track of your variables and other
parameters in your CPU-XA program.

The applet is freeware.  If you would like to find out more:


Jeff Hinrichs