Changed SSE3 emulator code.
It now supports 2 SSE3 emulators (Toh one and Voodoo one).
By default the Toh one is used (Voodoo one can be toggled using the following boot argument: -VoodooSSE3emu).
It should now also work for 64bit apps (not 64bit kernel though) as I've modified the code so that it also registers it in the 64bit commpage.
Please, people with SSE2 only machines test this for me and report back...