The Mednafen team have released a new version – 0.9.46.
Official Website: https://mednafen.github.io/
-- 0.9.46: -- August 10, 2017: Compile with explicit -fstrict-aliasing, for distributions/OSes that have configured gcc to not enable strict aliasing at -O2(and possibly other levels). Fixed a bug that could, under certain conditions, cause emulator OSD elements to not be updated in the time after entering frame advance mode and before a frame advance. August 7, 2017: Use a sorted std::vector instead of std::multimap to store current settings, to reduce memory usage. August 6, 2017: SS: Added ss.input.port*.3dpad.mode.defpos settings to control the default position of the digital/analog mode switch. August 5, 2017: Allow addresses above FFFF to be entered as the logical watch address in the debugger. August 4, 2017: SS: Added kludge to fix layer offset problem in "Daytona USA CCE". NES: The functionality controlled by setting "nes.fnscan" now recognizes "(F)" and "(France)" as PAL. NES: Added support for iNES mapper 40. July 11, 2017: Utilize _byteswap_*() functions in endian.h when compiling with Microsoft's C++ compiler. June 22, 2017: Fixed a couple of minor issues(log header formatting, and skipped logging of first instruction in step mode) with the debugger's undocumented trace log feature. NES: Corrected the period of PAL noise channel frequency setting 0x1. June 21, 2017: NES: Fixed a few square wave sound channel emulation bugs(wrong phase for duty setting 3, and failing to clock the period counter when the channel is silenced).