GENESIS PLUS (Sega Megadrive/Genesis) to port GENESIS PLUS Charlsa MacDonalda, który jest w miarę znany dzięki wersji dla Wii (GENESIS PLUS DX), teraz dzięki osobie o nicku Eke-eke, znów możemy go zagościć pod PeCetem:). W chwili obecnej G+ SDL jest opublikowany w bardzo podstawowej wersji, nie ma frontendu tak rozbudowanego jak wersji WII (mówiąc wprost w ogóle nie ma frontendu;)) i potrafi nagle się poddać i zawieśić. Oj, przyjdzie nam jeszcze poczekać aż ten port nabierze rumieńców.
[04/12/2010] version 1.4.1 (Eke-Eke)
- [Core/Sound]
- implemented Blargg's blip buffer in SN76489 core (all channels are now lineary interpolated)
- [Core/VDP]
- improved 2-cell vscroll emulation accuracy, as verified on real hardware (Gynoug, Cutie Suzuki no Ringside Angel, Formula One, Kawasaki Superbike Challenge)
- 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/CPU]
- fixed state of Z80 registers on reset (sound issues with Defender & Defender 2 in Williams Arcade Classics)
- implemented 68k undocumented flags behavior for DIVU/DIVS instructions (Bloodshot / Battle Frenzy)
- [Core/Extra]
- improved emulation of copy-protection hardware found in some unlicensed cartridges (Mulan, Pocket Monsters II).
- enabled simultaneous use of multitap & J-CART (Super Skidmarks 6-player mode)
- 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
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Genesis Plus GX is an open-source Sega 8/16 bit emulator focused on accuracy and portability. Initially ported and developped on Gamecube / Wii consoles through libogc / devkitPPC, this emulator is now available on many other platforms through various frontends such as:
Retroarch (libretro)
Bizhawk
OpenEmu
The source code, initially based on Genesis Plus 1.2a by Charles MacDonald has been heavily modified & enhanced, with respect to original goals and design, in order to improve emulation accuracy as well as adding support for new peripherals, cartridge or console hardware and many other exciting features.
The result is that Genesis Plus GX is now more a continuation of the original project than a simple port, providing very accurate emulation and 100% compatibility with Genesis / Mega Drive, Sega/Mega CD, Master System, Game Gear & SG-1000 released software (including all unlicensed or pirate known dumps), also emulating backwards compatibility modes when available. All the people who contributed (directly or indirectly) to this project are listed on the Credits page.