I am trying to learn some 6502 assembly and this is the result of one of my first experiments.

Once it's loaded, the following commands are available through the keyboard:

keyuse
Bbinary display mode
Xhex display mode
Rrandom display mode (default)
Nincrements border color
Mincrements background color
Qquit

You can take a look at the source code in my C64 Playground repository on github and download the D64 image for your retro emulation enjoyment.

If you want a quick browser demo, you can run it directly here.

I reworked this mess and got a much better version: The Matrix Screensaver for Commodore 64, version 2.

If you run the screensaver on the real thing and send me a video of it, you are my hero.

Speaking of heroes, this was obviously heavily inspired by the xmatrix screensaver by the legendary Jamie Zawinski.