Nintendo Entertainment System

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The Nintendo Entertainment System, or NES, was a video game console based around the NMOS Technology 6502. The custom chip was produced by Ricoh, and named the 2A03 processor. The NES utilized ROM cartridges for gameplay.


Games for this system


Hardware Information


The most useful NES emulator for hacking purposes is FCEUXD SP which includes a Trace Logger, a built-in Hex Editor, a Name Table Viewer, Code/Data Logger, Inline Assembler, and Game Genie Decoder/Encoder, PPU Viewer, and a Debugger with Conditional Breakpoints and Symbolic Debugging.

ROM Images

NES ROM images generally have the extension .NES and are organized according to the iNES format. Another format the UNIF(Universal NES Interchange Format) hopes to replace the iNES.

Copiers & Flash Cartridges

  • Schematics of an old copier by Marat Fayzullin are available here.
  • The IO-56 is a homemade NES Dumper by Pascal. Felber.
  • ChameleonNESis a home made usb NES dumper by team Knox. It is based on the Chameleon-USB by Optimize (Japanese only). Unfortunately ChameleonNES can only dump cartridge without a memory mapper.
  • The NES Funky Flash Cart is a home made usb prototype flash cartridge. It has a very limited rom support, more info here