Pascal-Rorschach Tweet

This cart calculates successive rows of Pascal's Triangle in binary (and then mirrors the result vertically for more viewing potential). This results in some surprisingly discernible images...or maybe I've just been looking at pixel art too much.

Remix it on pico-8-edu.com

This cart is tweetable at just 274 characters.

cls()
poke(0x5f2c,6)
n=0
pset(63,0,7)
::_::
if (btnp(4)) printh(n,'@clip')
if btnp(5) then
    n+=1
    for x=0,127 do
        c=0
        for y=0,63 do
            a=pget(x,y)
            b=pget(x-1,y)
            pset(x,y+64,a^^b^^c)
            c=a&b|a&c|b&c
        end
    end
    memcpy(0x6000,0x7000+(n%4)\3,0x1000)
end
flip()
goto _

Controls

• X - Calculate next generation
• Z - Copy current generation number to clipboard (i.e. how many times you have pressed the X key)

About

Source code available on GitHub

Acknowledgements

Inspired by this animation on the Pascal's Triangle Wikipedia page