This is the safe variant that does not assume other
functions use R11 for &g_dsp.r, which they actually do.
So there is a lot unnecessary reloading of the register
getting emitted.
There are a few small changes exploiting pointers known
at emission time and making use of MComplex math.
Also renames m_LLEplaying to m_AIplaying in Core/AudioCommon.
git-svn-id: https://dolphin-emu.googlecode.com/svn/trunk@6245 8ced0084-cf51-0410-be5f-012b33b47a6e