Copy over temp fpu regs, enable VecDo3/VDot

They seem to work, they don't make Bink any less happy, and it should be a bit faster (even though it's not running much right now due to prefixes being unknown most of the time.)

Probably need to expand it to 8 - or worse 12, maybe avoidable - to enable prefixes.  And then just have a DefaultLocation as a temporary place for them and allow memory swapping?

-[Unknown]