f(x,y) = ((((-x) & (y * y)) - ((y + 13) | (8 + x))) | ((~(-y)) % ((x % y) | (y - y)))) % 4

Extent: 256x256 (scaled x2)

"Onebit" colouring scheme.

@bitartbot this one is fantastic, it looks like a desert road running off straight into the distance