* Added ps2timer device to encapsulate Playstation 2 timers.
* Temporarily hacked R5900 core to always have scratchpad RAM mapped at 0x70000000.
* Added reference counting to divtlb so that it does not unmap pages that are still shared with other entries.
* Added a considerable amount of logging to ps2sony.cpp.
-mips3: Added basic Emotion Engine support. [Ryan Holtz]
* Added S bit to TLB mapping.
* Added support for VSUB, VIADD, VSQI, VISWR, VOR, LQ, SQ, MFSA, MTSA, MFHI1, MFLO1, MULT1, DIV1, DIVU1, PEXTLW, PADDUW, PMFHI,
PMFLO, PCPYLD, PCPYUD, SQC2, LQC2 opcodes. [Ryan Holtz]