GxGeo vs NeoCD/SDL

GxGeo is a free Wii-family emulator for Neo-Geo AES and MVS games. It is a port of the open-source GnGeo emulator and is licensed under GPLv2. Supported platforms listed are Wii, vWii mode on Wii U, and Wii Mini. The project is described as an early version with some bugs. ROMs larger than 25 MB do not work because of memory limitations, although some ROMs can be modified to run. Installation requires extracting the ZIP to an SD card and placing zipped ROMs and BIOS files in /sd/gxgeo/roms. The instructions require 000-lo.lo and sfix.sfx, and describe country and system BIOS files; uni-bios.rom can substitute for a country or system file. Play is supported through a GameCube controller or Wii Remote. A GameCube controller in port 1 takes priority for player 1, while the Wiimote controls player 2. Downloads are linked through Google Code, Homebrew Browser, and Open Shop Channel. Open Shop Channel lists version 20101119.

NeoCD/SDL is a port of the NeoCD NeoGeo CD emulator to the SDL library. It can run many original NeoGeo CD games and is listed for Windows, Linux, BeOS, and Dreamcast; the project also lists ports for Xbox and PlayStation 2. Each of two players can use a keyboard or a separate joystick. Keyboard shortcuts control fullscreen display, video effects, frameskip, sound, screenshots, and quitting. To run the emulator, users need an uncompressed 512kb system ROM named neocd.bin. The documentation says users are not entitled to a copy of the copyrighted BIOS unless they own an original NeoGeo CD console. The emulator and its source code are free, but selling is not allowed, and the emulator cannot be provided on the same physical medium as NeoGeo game software. Source code and technical knowledge may be reused only for non-commercial purposes. Downloads include source and binary files. Windows builds require MinGW, MSYS, SDL development libraries, and NASM; Linux builds require SDL source and NASM. The program is distributed without warranty.