____            _ _   _ ______  _____ 
 |  _ \          | | \ | |  ____|/ ____|
 | |_) | __ _  __| |  \| | |__  | (___  
 |  _ < / _` |/ _` | . ` |  __|  \___ \ 
 | |_) | (_| | (_| | |\  | |____ ____) |
 |____/ \__,_|\__,_|_| \_|______|_____/ 
				EMULATOR

A nearly complete NES emulator in a single 700-line C++ source file, based on LaiNES.

cloc main.cpp
       1 text file.
       1 unique file.                              
       0 files ignored.

github.com/AlDanial/cloc v 1.74  T=0.03 s (30.8 files/s, 24595.5 lines/s)
-------------------------------------------------------------------------------
Language                     files          blank        comment           code
-------------------------------------------------------------------------------
C++                              1              5             85            708
-------------------------------------------------------------------------------

Features

• Cycle accurate
• Extremely compact: only 700 lines in one source file with no dependencies

Requirements

• C++11
• SDL2

Building

*nix systems

git clone --recursive https://github.com/Ta180m/BadNES && cd BadNES
g++ main.cpp -o badnes -std=c++11 -lSDL2main -lSDL2

Windows

git clone --recursive https://github.com/Ta180m/BadNES && cd BadNES
g++ main.cpp -o badnes -std=c++11 -IC:\mingw\include\SDL2 -LC:\mingw\lib -w -Wl,-subsystem,windows -lmingw32 -lSDL2main -lSDL2

Usage

./badnes [path to rom]

Compatibility

BadNES implements the most common mappers, which should be enough for a good percentage of the games:

• NROM (Mapper 000)
• MMC1 / SxROM (Mapper 001)
• UxROM (Mapper 002)
• CNROM (Mapper 003)
• MMC3, MMC6 / TxROM (Mapper 004)

You can check the compatibility for each ROM in the following list: http://tuxnes.sourceforge.net/nesmapper.txt

FAQ

Why the name?

http://www.usaco.org/index.php?page=viewproblem2&cpid=1041

Why did you do this?

I really like LaiNES: it's very minimal and compact -- but it has several dependencies, so I try to write the shortest NES emulator possible, in a single source file.

There's no sound!

I'm working on it right now.

What do you mean by "nearly complete"?

I will declare it complete once I finish implementing the APU, savestates, and maybe Mapper 7.

Credits

Special thanks to Andrea Orru for creating LaiNES, the emulator that this project derives much of its code from.