Move some stuff in mt_binarize to macro
Rewrite mt_logic asm
Rewrite mt_adddiff asm
Rewrite mt_makediff asm
Rewrite mt_average asm
Fix broken asm on non-mod16/32 clips
Rewrite mt_clamp asm

vc110 seems to do dumb things so it's actually a bit slower than the
original one. Better with ICL as always.