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is an open source
The term open source describes practices in production and development that promote access to the end product's source materials. Some consider open source a philosophy, others consider it a pragmatic methodology...
The Nintendo Entertainment System is an 8-bit video game console that was released by Nintendo in North America during 1985, in Europe during 1986 and Australia in 1987...
A video game console emulator is a program that allows a computer or modern console to emulate a different video game console's behavior. Emulators are most often used to play older video games on personal computers and modern video game consoles, but they are also used to play games translated...
designed to emulate the NES hardware as accurately as possible. Originally for Windows
Microsoft Windows is a series of operating systems produced by Microsoft.Microsoft introduced an operating environment named Windows on November 20, 1985 as an add-on to MS-DOS in response to the growing interest in graphical user interfaces . Microsoft Windows came to dominate the world's personal...
only, Nestopia has been ported to the Mac OS X
Mac OS X is a series of Unix-based operating systems and graphical user interfaces developed, marketed, and sold by Apple Inc. Since 2002, has been included with all new Macintosh computer systems...
Linux is a Unix-like computer operating system assembled under the model of free and open source software development and distribution. The defining component of any Linux system is the Linux kernel, an operating system kernel first released October 5, 1991 by Linus Torvalds...
An operating system is a set of programs that manage computer hardware resources and provide common services for application software. The operating system is the most important type of system software in a computer system...
Nestopia emulates the NES CPU at cycle-exact granularity, ensuring full support for software that does mid-scanline and other timing trickery. Other features listed in Nestopia's manual include:
- Famicom Disk System
The was released on February 21, 1986 by Nintendo as a peripheral for the Family Computer console in Japan. It was a unit that used proprietary floppy disks for data storage. It was announced, but never released, for the North American Nintendo Entertainment System...
- VS. UniSystem
The Nintendo Vs. System is a coin-operated video game platform designed for two-player competitive play using the VS. UniSystem or VS. DualSystem, arcade system boards based on the Nintendo Entertainment System. Many of these stand-up or sit-down arcade machines had two screens and controls joined...
NSF is the DOS 8.3 filename Filename extension of the audio file format originally designated as NESM by the inventor Kevin Horton. This format was originally designed for playback in a custom hardware device named HardNES by the inventor...
- Accurate video emulation, including artifact
A compression artifact is a noticeable distortion of media caused by the application of lossy data compression....
s of the NES's NTSC
NTSC, named for the National Television System Committee, is the analog television system that is used in most of North America, most of South America , Burma, South Korea, Taiwan, Japan, the Philippines, and some Pacific island nations and territories .Most countries using the NTSC standard, as...
- Savestate support
- "Rewind" support
- IPS patching support
- Movie recording
- Several non-standard controllers and peripherals
- Support for over 200 memory mappers
Multi-Memory Controllers or Memory Management Controllers are different kinds of special chips designed by various video game developers for use in Nintendo Entertainment System cartridges...
- Cheat code menu with built in Game Genie
Zip is a file format used for data compression and archiving. A zip file contains one or more files that have been compressed, to reduce file size, or stored as is...
7z is a compressed archive file format that supports several different data compression, encryption and pre-processing algorithms. The 7z format initially appeared as implemented by the 7-Zip archiver. The 7-Zip program is publicly available under the terms of the GNU Lesser General Public...
ip archive support
Nestopia was originally developed for Windows by Martin Freij. Richard Bannister and R. Belmont later ported it to Mac OS X and Linux, respectively.
A cheat code pack has been compiled and available on Mighty Mo's World
. It consists of thousands of Game Genie
The Game Genie is a series of cheat systems designed by Codemasters and sold by Camerica and Galoob for the Nintendo Entertainment System, Super Nintendo Entertainment System, Game Boy, Mega Drive/Genesis, and Sega Game Gear that modifies game data, allowing the player to cheat, manipulate various...
and Pro Action Replay cheats for hundreds of games. The file is updated often.
- List of Nintendo Entertainment System emulators
- List of Nintendo Entertainment System games