De-pict-sly: Pixley and Etcha in HTML5

Saturday, January 11, 2014

We present, just below, the Pixley reference interpreter (that is, the one that's written meta-circularly in Pixley itself) depicted as a set of nested, coloured rectangles. Looks a bit like an integrated circuit, perhaps, except without the wires. I'll leave it to you to decide if this is unsurprising or not. You can see this and more in Pixley.

Pixley Interpreter as nested rectangles

But that's not all! We also present what happens when you run that one Etcha example program over and over again. Looks a bit like a pattern produced by Langton's ant, and perhaps that is no surprise at all. You can try this, and any other Etcha program you care to concoct, yourself in Etcha.

An Etcha program state after many repetitions