Mednafen v0.9.34.1 WIP is released. Mednafen is a multi-game-system emulator, for various platforms, including emulation of the following systems:Atari Lynx,Famicom,GameBoy (Color),GameBoy Advance,Neo Geo Pocket (Color), NES(both NTSC and PAL),PC Engine/TurboGrafx 16 (CD) and SuperGrafx,PC-FX,WonderSwan (Color).

Mednafen v0.9.34.1 WIP Changelog:

Added setting "video.deinterlacer" to select which simple deinterlacer to use. Note that currently, all deinterlacers will result in double-height video internally(compared to non-interlaced modes), even when it's not strictly necessary(such as with "bob" and "bob_offset"), due to internal design decisions. Allow for negative ".scanlines" setting values, which when used with the "weave" deinterlacer(the default), will structure the scanlines to mask the previous field's lines. Added support for mapping joystick axes to lightgun screen coordinates(refer to full ChangeLog, April 28, for more details). Updated internal copy of libmpcdec; fixes Musepack SV7 file reading/playback(with CD emulation). New shared-mode WASAPI sound driver available(but not the default) for Windows Vista and newer, named "wasapish"(can be selected via the "sound.driver" setting). GB: Added support for custom palettes that specify BGP, OBP0, and OBP1 colors independently. GB: Fixed MBC7 support(tilt sensor is on virtual port 2). GB: Disabled broken simulation of HDMA overhead. GB: Fixed some problems in the memory-mapper code that allowed some games(like "Best of the Best Championship Karate") to crash Mednafen itself. PC-FX, VB: New FPU emulation code to replace SoftFloat(due to licensing concerns); game compatibility shouldn't be affected. PS1: Added settings to allow for scaling(and clamping) the analog stick axis values to work around issues caused by the range differences between PS1 analog sticks and modern PC gamepad analog sticks.

Download: Mednafen v0.9.34.1 WIP x86
Download: Mednafen v0.9.34.1 WIP x64
Source: Here