Category: NES

puNES (ex Fnes) is an emulator under development that works on Linux32/64 and Windows32. It needs of SDL library to run.

Here's changelog for latest versions:
0.58 (bugfix relase)
Correct a crash with some fds roms (thx Gokun for reporting).
Help Request:
Any volunteers who wants draw a new icon? You will be rewarded with a nice cold beer Smile.
If anyone is interested can contact me at this address

Added FDS emulation (read and write, not sound yet).You need of the FDS bios rom located in one of these folders:
1) the working directory,
2) the folder where is the fds file,
3) "$HOME/.puNES/bios" on linux or "/puNES/bios" on Windows.
The bios file must be called "disksys.rom" and must have a size of 8192 bytes.
Added mapper 37.
Corrected some bugs in the cpu emulation discovered thanks to test roms made by Bisqwit
( and
Fixed a bug that in some circumstances, when attempting to load a save state, it crashed the emulator.

Added mappers 200, 201, 202, 203, 204, 205, 207, 212, 213, 214, 215, 216, 217, 222, 240, 241, 244.
Correct a bug in the Windows version that did not allow proper configuration of some gamepads / joysticks.
Other bugfixes.

0.55 (bugfix release)
Fixed another bug in the square emulation.
Thanks to Eugene.s for the reporting.

0.54 (bugfix release)
I've forgotten to uncomment same code in new squares emulation that results in distorted sound. Correct.

0.53 (massive bugfix release)
Correct frequency pitch emulation in Dandy mode.
Fixed all the bugs that were going to crash the emulator in the Windows version, now are really stable.
Correct a lots of bugs in the apu emulation and now the sound is much more cleaner and precise.
Rewrite from scratch the popping sound reducer.
Thx Eugene.S for suggestions, feedback and patience.

Added Dendy Emulation.
Implemented mappers 221, 225, 226, 227, 228, 229, 230, 231, 233, 234, 235.
Implemented a sort of "FCEUX Compatibility mode" and now many other FM2 works well (at least several of the most recent).
Bug Fixes.

Check out official thread at nesdev for further information and latest version of emulator.