Visual Boy Advance is a Game Boy / Game Boy Advance Emulator for Wii / GameCube, based on VBA-M. The code is a continuation of Softdev and emu_kidid’s efforts, and uses libogc and devkitppc. The GUI is powered by libwiigui.

Features:

Wiimote, Nunchuk, Classic, and Gamecube controller support
SRAM and State saving
IPS/UPS/PPF patch support
Custom controller configurations
SD, USB, DVD, SMB, Zip, and 7z support
Compatibility based on VBA-M r927
MEM2 ROM Storage for fast access
Auto frame skip for those core heavy games
Turbo speed, video zooming, widescreen, and unfiltered video options

Changes:

* Fixed PAL support

http://wiibrew.org/wiki/Visual_Boy_Advance_GX