A new version of Genesis Plus GX, a Sega Genesis / Sega Megadrive emulator for the Nintendo Wii is now ready for your downloading consumption. What's new in version 1.4.1?

Changelog:

Core/VDP

• improved VBLANK flag accuracy, as observed on real hardware.
• improved DMA operations accuracy, writes are now performed on a scanline basis: fixes Gaiares (flickering title screen).
• improved DMA Fill timing accuracy.
• fixed DMA with bad code values: fixes Williams Arcade Classics (corrupted gfx after soft reset).
• fixed horizontal resolution changes during HBLANK: fixes Bugs Bunny in Double Trouble (2nd stage).
• fixed Vertical Counter in interlace mode 1, as observed on real hardware.
• fixed horizontal border width, as observed on real hardware.
• various code improvments & optimizations.

Core/Extra

• improved savestate format: added DMA, SVP, cartridge mapping & internal registers state informations
• improved unlicensed ROM mappers emulation
• added Chinese Fighters III mapper support
• added Top Fighter mapper support
• fixed Barver Battle Saga mapper support
• fixed cartridge hardware soft-reset (Game Genie, SVP, ...)
• fixed Game Genie registers byte reads

Gamecube/Wii

• added message box when inputs config uses disconnected controllers.
• added message box when settings are reseted to default on startup.
• fixed default inputs configuration.
• fixed memory leak in Cheat Menu causing spurious resets.
• added an option to enable/disable automatic cheat activation
• increased max number of cheat codes
• optimized cheat codes requiring RAM patching.
• improved default horizontal scaling to better match output from a real Mega Drive