Appended notes:
* ADD in iFPUd should be bit accurate (unless it isn't. needs TESTING)
* MUL in iFPUd with Software Emulate MUL is as much as I could get near bit accurate (not quite enough, probably. needs TESTING)
git-svn-id: http://pcsx2.googlecode.com/svn/trunk@728 96395faa-99c1-11dd-bbfe-3dabce05a288