It's based off the LEG from the game "Turing Complete."

The program I wrote is made using customasm. It took over 2 minutes to run. Here it is:

#include "defs.casm"  
disp clear
disp refresh 
mv 0 r1
loopY:
     mv 0 r0
     loopX:
         or r0 0x70 r2 ; Setting the upper nibble sets the red.
         disp rgb r2 r1
         disp put r0 r1
         disp refresh
         inc r0
         jmp to loopX if r0 lt 16
     inc r1
     jmp to loopY if r1 lt 16
halt

Here's the project: https://drive.google.com/drive/folders/1RLjHh8HrQtIy1CEIqtvdRZ7acndhpw3t?usp=sha...

That's so cool bro I am working on a computer too. Also mind adding me on discord or something i want to discuss to see if we could collab or you could help me (i have the same user as here my pfp is a cat with glasses)

OMG YOU MADE AN EDGE DETECTER HELL YEAH THATS WHAT I NEEDED

Awesome!