My Nes v6.1.2 is released. My Nes is a portable open source NES/FAMICOM emulator written in C#. It's EXACT nes cycle emulator, very accurate and uses exact ppu scanline timing. My Nes compatibility is very high, and most of the games that supported run perfectly.

My Nes Features:
- Roms browser with bility to disblay additional information of each rom like snapshot and info.
- Save/Load state in defferent 9 slots or in file using save/load state as feature.
- Sound recorder which record sound of current playing rom in wav format (Mono, 44100 Hz, pcm 16-bit).
- Developer console with full access emulation commands.
- Support INES (*.nes) file format.
- Can read from archive (*.zip, *.7z and *.rar)
- Profiles for control mapping.
- CPU :All 6502 opcodes (with the undocumented opcodes), IRQ and NMI.
- PPU :8x8 and 8x16 sprites with transparency and priority, background tiles and sprites evulation, internal ntsc palette generator, default PAL palette, Cycle based ppu, real scanline and scancycle timing, Emphasis and monochrome effects.
- Sound : all the 5 channels, MMC5, SS5B and VRC6 external sound channels. Format: MONO PCM 16 BIT 44100 Hz.
- Systems : PAL , NTSC
- Mappers : # 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 15, 16, 17, 18, 19, 21, 22, 23, 24, 25, 26, 32, 33, 34, 40, 41, 42, 43, 44, 45, 46, 47,48, 49, 50, 51, 57, 58, 60, 61, 62, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 82, 83, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 97, 105, 112, 113, 114, 115, 117, 118, 119, 133, 140, 142,159, 180, 182, 184, 185, 187, 188, 189, 193, 200, 201, 202,203,204,205, 212,213, 225, 226, 228, 229, 230, 231, 232, 233, 240, 241, 242, 243, 244, 245, 246, 248, 249, 251 and 255. Almost full set !!

My Nes v6.1.2 Changelog:
Added: Support for these mappers: # 41 and 42
Added: High quality downsampler for audio output. Now My Nes sounds better.
Added: Options in Audio options allow to change sound channels playback enable.
Added: Ability to show boards/mappers status with My Nes via the new Boards List dialog.
Added: New option in input settings, allows to switch back to keyboard mapping for a device when mapped device disconnected.
Fixed: mappers # 23, 24, 26 and 90.
Fixed: MMC 5 (mapper 5) external sound channels
Fixed: Interrupts issue, branches was delaying nmi and irq instead of irq alone. some games are now playable (Dragon Quest III is one of them)
Fixed: Bug in Inputs settings, never save device selection for joypad1.
Fixed: Bug with inputs when trying to play in fullscreen sometimes inputs disconnected.
Fixed: Soft reset for internal sound channels.
Fixed: Bugs in few mappers.
Improved: external sound channels of mapper 19 (Namco 163), still choppy but works.
Improved: Few things in the video renderer such as 'cursor now it hides when entering fullscreen mode'.
Improved: Input settings when trying to set mapping for all buttons sometimes the same mapping assigned to more than one button.

Download: My Nes v6.1.2
Source: Here