Yabause Wii is a Sega Saturn emulator for Wii and is the first of its kind as emulating the complex processes of the Sega Saturn is much harder then it looks and now even harder to run it on the limited hardware of the Wii.

Changes:

add some previous unhandled commands of vdp2
use optimization options of compiler (a little fast)
use inline assemblies more in functions used in RBG0 and RBG1 (a little fast but not accurate)
some minor fixes and changes

http://wiibrew.org/wiki/Yabause_Wii