r1204
sceKernelStartModule: do not return an error when the module has no entry point

r1203
Basic implementation of sceGuTexLevelMode when mode=1. Not really sure about it, testing required.

r1202
Additional native compiler code from Homebrew Kurok.

r1201
Removed debugging code introduced in r1200 by mistake...

r1200
Basic implementation for sceUtilityOskInitStart(). GUI to edit the text is missing.

r1199
Updated sceDisplayGetVcount() and sceDisplayGetAccumulatedHcount() to match PSP.