Eke-Eke has released a new version of Genplus GX for all to play with. One of the new main features is Sega CD/Mega CD Emulation.
CD Audio support Isn't implemented yet but it's in the post
Thank You Eke-Eke!
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1.7.1 ADDED
Download: http://code.google.c.../downloads/list
CD Audio support Isn't implemented yet but it's in the post
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Genesis Plus GX 1.7.0 (01/07/2012) (Eke-Eke)
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[Core/SCD]
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* added Mega CD / Sega CD hardware emulation (incl. Sub 68K, CDD, CDC, PCM, GFX rotation/scaling, etc)
* added .ISO & .BIN CD image file support
* added 512K backup cartridge RAM support
* added savestate support for CD games
NOTES:
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* to play CD games, original BIOS ROM files are required in /genplus/bios/ directory: unzip & rename them to bios_CD_U.bin, bios_CD_E.bin, bios_CD_J.bin
* CD audio tracks (CD-DA) are not supported (yet)
[Core/CPU]
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* modified 68k core for Mega CD / Sega CD support
* optimized 68k core using prebuild const tables
[Core/VDP]
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* improved DMA accuracy
* improved accuracy of nametables register & VSRAM writes during HBLANK: fixes "The Adventures of Batman & Robin" (graphical issues during 2nd Boss fight).
* added support for 8-bit VRAM writes with undocumented code value (verified on real hardware by Nemesis)
[Core/Sound]
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* improved synchronization between SN76489 & YM2162 cores.
* improved accuracy of SN76489 core timings.
[Core/MD]
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* added support for some recently dumped unlicensed games.
* improved emulation of 32k bankswitch hardware used by a few unlicensed games.
* fixed behavior of Z80 banked reads from 68k RAM (verified on real hardware).
* fixed support for 128K Pro Action Replay ROM.
[Core/MS]
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* added support for all recent korean ROM dumps by SMS Power.
* added emulation of korean multi-game mapper (4-Pak All Action)
* added pseudo-random RAM pattern initialization on Mark-III and Japanese Master System (fixes "Alibaba and 40 Thieves" & "Block Hole")
* added port $3E emulation & internal BOOTROM support (Master System & Game Gear only).
[Core/General]
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* added an option to set VDP mode (PAL/NTSC) independently from console region.
* added an option to select original system master clock frequency (PAL/NTSC/AUTO), emulation will run at selected frequency when VSYNC is disabled.
* fixed 68k context loading/saving (Sol Deace).
* fixed C89 incompatibilities for better portability.
* removed use of "long int" type for portability on 64-bit platforms.
* moved savestate zlib compression out of emulation core (for ports that don't use it).
* various optimizations.
[Gamecube/Wii]
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* removed ROM load device selection from Load Menu: default ROM device must now be configured in menu settings.
* added specific load buttons, browsers & saved paths for each systems, this also fixes slowdowns caused by screenshot loading when browsing from slow devices.
* added support for left/right buttons as page up/down keys in ROM browsers
* added right analog stick as default "return to menu" key for Gamecube controllers
* added alternate remappable menu key combo for Gamecube controllers
* added an option to disable VSYNC (emulator is synced with audio hardware instead of video).
* added an option to boot system from "BIOS", with or without cartridge.
* added Master System & Game Gear "BIOS" support (files should be named bios_U.sms, bios_J.sms, bios_E.sms & bios.gg and copied to /genplus/bios directory).
* replaced "Hard Reset" button by a Soft Reset for systems having a Reset button (Mega Drive / Genesis & Master System)
* State & SRAM files are now only compressed when saving to Gamecube Memory Cards
* various fixes & cleanup.
* compiled with devkitPPC r26 & libogc 1.8.11.
[Gamecube]
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* improved progressive mode support when component cable is detected (hold B during startup to switch menu video mode configuration)
Thank You Eke-Eke!
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1.7.1 ADDED
Source: http://code.google.com/p/genplus-gx/---------------------------------------------------------------------------------------------------------
Genesis Plus GX 1.7.1 (13/10/2012) (Eke-Eke)
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[Core/SCD]
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* added support for CUE files
* added CD-DA tracks emulation (needs CUE+BIN or ISO+WAV images)
* added CD fader emulation
* added CDD "Fast FW" & "Fast RW" commands emulation
* improved CDD TOC emulation (random freezes in Sonic CD, Switch/Panic, Final Fight CD and probably many others)
* improved PCM chip synchronization with SUB-CPU (missing speeches in Willy Beamish)
* fixed PCM chip emulation (random hangs in Snatcher, missing sound effects in Switch/Panic, Final Fight CD, Wonderdog...)
* fixed Word-RAM memory mode on soft-reset (missing logo gfx effects)
* fixed SUB-CPU access to unused areas when using PC-relative instructions (Final Fight CD first boss random crash)
* fixed CPU idle loop detection on memory mode register access (Pugsy CD first boss slowdown)
* fixed Mode 1 emulation (cartridge boot mode)
[Core/Sound]
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* replaced FIR resampler by Blip Buffer for FM resampling
* modified SN76489 core for use of Blip Buffer
* improved PSG & FM chips synchronization using Blip Buffer
* added Game Gear PSG stereo support
* fixed SG-1000 specific PSG noise
* fixed YM2612 LFO AM waveform (California Games surfing event)
* fixed YM2612 phase precision
* minor optimizations to YM2612 core
[Core/Game Gear]
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* added support for CJ Elephant Fugitive (recently released by SMS Power)
* added Game Gear extended screen option
[Core/Genesis]
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* added support for a few recently dumped (but unreleased) games
[Core/General]
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* improved ROM & CD image file loading
* various code cleanup
[Gamecube/Wii]
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* added automatic disc swap feature
* removed automatic frameskipping (no use)
* improved general audio/video sync
* various code cleanup & bugfixes
Download: http://code.google.c.../downloads/list