Acid - final release

Optimized quasicrystal code: full window size render ~17 seconds for 30 frames
http://pastebin.com/fjLQnbkB

http://codepad.org/NTrrmr2O
Branch: 1670000
Bit hack: 1860000
Subtraction: 2350000
XOR with sign: 1770000
asm: 1660000
abs(): 1670000

On an Atom processor, compiled with GCC 4.6.1, with no optimizations.
Sorry if it's less that optimal, I'm not that good with asm.