The abrupt merging of Nouveau

This isn't the shader engine or anything like it, its a simple processor that just copies data from processor registers to VRAM and vice-versa, its like a really simple offload engine.

So its a fairly simple processor and working out its opcodes once you know what its copying and to where wasn't that hard, the simpler opcode were okay, the problem at least with G80 opcodes is the non-trivial ones (I think 2 left) are proving quite hard to figure out.