Homebrew developer EkeEke has released a new version of Genesis Plus GX, an enhanced version of the Sega Genesis / Sega Megadrive / Sega Master System emulator for the Nintendo Wii based on Charles MacDonald's Genesis Plus project.

Changelog:

Core/Sound

• added YM2413 emulation in Master System compatibility mode.
• fixed SN76489 noise boost initialization.
• minor YM2612 core optimizations.

Core/VDP

• added accurate emulation of SG-1000, Master System (315-5124, 315-5246) & Game Gear VDP.
• added support for all TMS9918 rendering modes.
• improved Mega Drive VDP timings accuracy in Master System Compatibility mode.
• fixed color palette initialization.
• fixed shifted sprites rendering in Mode 4.
• modified pixel rendering support (pixel depth is now forced at compilation time).

Core/CPU

• optimized 68k core (rewrote 68k interrupt handling, removed multiple CPU types support & unused code) for 5~8% speed improvment

Core/IO

• added accurate emulation of Master System (315-5216, 315-5237, 315-5297) & Game Gear I/O controllers.
• added Terebi Oekaki tablet emulation.
• improved Mouse emulation (fixes mouse support in Cannon Fodder).
• improved Justifier emulation (fixes gun support in Lethal Enforcers 2).
• improved 6-Buttons control pad emulation (fixes Duke Nukem 3D)
• modified lightgun emulation to use common key inputs for all devices.
• 2-buttons controller is now picked by default for Master System games.

Core/MD

• added copy-protection hardware emulation for some new dumped games (Tiny Toon Adventures 3, Mighty Morphin Power Rangers & The Battle of Red Cliffs).
• added Game Toshokan in EEPROM database (verified on real cartridge).
• fixed Micro Machines 2 - Turbo Tournament EEPROM size (verified on real cartridge).
• modified SRAM banswitch hardware emulation to be more compatible with some hacks.

Core/MS

• added Cyborg Z to Korean mapper database.

Core/GG

• added 93C46 EEPROM emulation (Majors Pro Baseball, World Series Baseball & World Series Baseball 95).

Core/General

• added support for .mdx ROM format.
• added Game Gear & SG-1000 ROM support.
• added accurate emulation of SG-1000, Master System (I, II) & Game Gear hardware models for 100% compatibility.
• updated to new Genesis Plus license (see http://cgfm2.emuviews.com/)
• various code cleanup.

Gamecube/Wii

• IMPORTANT: cheats, screenshots & save files are now stored in console-specific directories (ex: /snaps/md, /cheats/ms, /saves/gg, ...)
• added 8-bit Action Replay & Game Genie codes support (for Master System & Game Gear games).
• improved audio/video synchronization for PAL games in 50Hz TV modes (now use VSYNC like NTSC games in 60hz modes).
• improved gun cursor positioning accuracy.
• improved horizontal scaling & screenshots rendering in H32 mode.
• fixed a bug with ROM file extension handling that would affect cheats, snapshots, sram & savestate files.
• removed ARAM/injected ROM support (unused).
• removed WPAD_ and PAD_ update from VSYNC callback.
• increased GCC inlining limits for some speed improvment.
• compiled with devkitPPC r24 & libogc 1.8.7.

Download: Genesis Plus GX v1.6.0

And while your at it, don't forget to explore our DL page to grab hold of the latest homebrews from all around the scene.

Via [Wiibrew]

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