Nintendulator 0.975 beta (2010/06/22) is released. Nintendulator is an open source Win32 NES emulator written in C (plus some assembly optimization). The original goal was to emulate the NES down to its hardware quirks; though it's fallen behind over the years, recent builds have caught up once again and can emulate certain behaviors most other emulators neglect to handle. However, this emulation precision comes at a price - a 1500MHz (estimated) or faster CPU is required to emulate at full speed.

Supported file formats include .NES, UNIF, FDS (fwNES format), and NSF. Mappers are handled using external DLLs, complete with extra sound channels for most games which provide them. Other notable features include writing to FDS images (by storing the differences in the SRAM folder), Game Genie support (limited to 3 codes), customizeable controllers (including 4 player), input movie recording and playback (with re-recording), AVI capturing, and a debugger.

The developer said: June 22, 2010 Today's build includes brand new logic for DPCM sample fetching - under some circumstances, the old code could skip samples (and get thrown into an infinite loop if there was only 1 sample). Also, a rather glaring bug (introduced during the C to C++ upgrade back from March 19, 2009) was reported in the Winamp plugin which prevented it from working at all. This has been fixed, and the release file and sources for 0.970 have been reuploaded. In the process of fixing this, I've also updated all of the Winamp plugin structures to match the latest SDK and have added Unicode build targets (and downloads below).

Download:Nintendulator 0.975 beta (2010/06/22)
Source:Here