It's working which is incredible

My original goal was to have this working at all by March 31. When I started, it seemed daunting enough that I gave myself more than 6 weeks to get it done. It took 6 days.

At my lunchbreak I had it working as a script

https://videopress.com/v/YuQ8XXQs?preloadContent=metadata

And after work I refined it to take user input.

https://videopress.com/v/S9FeBUyz?preloadContent=metadata

My goal here was to learn it, not make a downloadable program for actual use. Something like CRC or MD5 works much better on a 6510 processor, this it much to slow to be useful.