About the dual-core "function"...

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wrooong, psp had n64 emu that was using both processing units of psp to emulate graphics and other one emulated sound, anyway... emulation can be split to emulate GPU on own core, CPU on own core and sound on own core, so its 3 cores.
Stop writing stuff like this if you dont have any idea http://forums.daedalusx64.com/viewtopic.php?f=12&t=4216