After a few days of reading very, very weird disassembled code and poking registers, the odd 2D hardware finally works (for the most part). It can draw lines, so I threw in a software 3D transform. Here’s the Stanford Bunny in a glorious 448 vertices and 1416 lines of jaggy wireframe awesomeness.  The chip has hardware line styling (stippling), and you can see 4 different settings (solid, “10″ dashed, “100″ dashed, “1000″ dashed) in sequence.
