Mednafen 0.8.9

Mednafen is a portable, utilizing OpenGL and SDL, argument (command-line)-driven multi-system emulator with many advanced features.
Mednafen emulates the Atari Lynx, GameBoy Advance, GameBoy (Color), NES, Neo Geo Pocket (Color), PC Engine(TurboGrafx 16), SuperGrafx, PC-FX, and WonderSwan (Color).
Mednafen has the ability to remap hotkey functions and virtual system inputs to a keyboard, a joystick, or both simultaneously. Save states are supported, as is real-time game rewinding. Screen snapshots may be taken at the press of a button, and are saved in the popular PNG file format.
Due to the threaded model of emulation used in Mednafen, and limitations of SDL, a joystick is preferred over a keyboard to play games, as the joystick will have slightly less latency, although the latency differences may not be perceptible to most people.

Enhancements:
- Updated the included gettext library to 0.17 to fix a MinGW build issue.
- GB: Corrected a lack of address masking in most of the cart RAM emulation code. Fixes a few Chinese GameBoy Color games.
- NES: (Re?)-added support for mapper 240(it was erroneously listed in the documentation as being supported...).
- GBA: Fixed a buffer overflow in the ROM image loading code.
- PC-FX: Several variables related to subchannel reading werent being saved in save states. Fixed. (This fixes save states made within the BIOS CD-DA player)
- PCE: Altered how the ADPCM read and write addresses are set. Fixes the Super CD version of "Tengai Makyou Ziria", and "CD Mahjong Bishoujo Chuushinha".
- PC-FX: Fixed a few deprecated const string to char* conversions in v810_cpuD.cpp.
- PCE: Fixed a bug with Arcade Card emulation with a tip from Exophase. The ADPCM sound effects in Garou Densetsu II work correctly now.
- PCE: Reads from the timer count register the cycle it is set to reload after expiring will now return 0x7F. Fixes "Battle Royale".