Rev 866 - Salvy
[+] Added QuickRead16Bits/QuickWrite16Bits
 (will start optimizing oshle functions more aggressively soon)
[!] Optimized osViSwapBuffer
Rev 867 - Salvy
[!] Fixed bug in memcpy_vfpu_swizzle when size is less than what we are
 aligning to
[!] Some optimizations to osStartThread
Rev 868 - Salvy
[!] Make sure FlashRead/Write regions are valid
Rev 869 - Corn
[!] Freed usage of T0/T1 registers in Dynarec.temp regs are now A0/A1 & V0/V1
 (A2/A3 are still not freed but are unused)
[!] Use of two scratch registers in the CPU register struct for easy storage
 of temp variables
 (mainly used in Dynarecstubs.S)
Rev 870- Salvy
[!] Some clean ups
[!] Made guRotateF and volatile memory platform independent
[!] Check for invalid reads/writes to PIF
Rev 871 - Corn
[+] Added storing and displaying previews to Save States
 (Uses a 128kByte buffer)
Rev 872- Salvy
[!] Used a temporal buffer for storing screenshots for savestates
[!] Take savestate screenshot after the next frame rather than storing it
 in a buffer
[!] Optimized Patch_osCreateThread
Rev 873- Salvy
[!] Fixed bug with savestate screenshot when having more than 64 more folders
 (Corn)
[+] Added Azimer's DK64 hack(DK64 boots now, make sure to have
 Double Display List off)
[!] Set EEPROM4k for DK64 (fixes hang when entering main menu in DK64)
Rev 874- Salvy
[~] Forgot this...
Rev 875- Salvy
[!] Use PSP's wsbw opcode for swapping four bytes in a 32bit value
Rev 876- Salvy
[!] Just call builtin_bswap32