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The NeoGeo Development Wiki This wiki is about every technical aspects of the SNK NeoGeo hardware and software (AES, MVS, CD and CDZ). Our aim is to provide the most detailed, accurate and up to date information for preservation, homebrew development and repairs.

Base system What's common to every NeoGeo system: main architecture, data formats...        Last edits pages Videosystem How graphics are handled and displayed, from bitplanes and colors to the video output. Last edits pages Audio system Everything related to music and sound effects: The Z80 subsystem, synthesized and sampled sound, CDDA playback...        Last edits pages Repairs Troubleshooting dead or glitchy MVS boards, CD laser assemblies, cartridges...        Last edits pages Cart systems Particularities of the AES and MVS systems: ROM types, memory cards, cab I/O, data security... Also cartridge boards information. Last edits pages CD systems NeoGeo CD and CDZ specificities: Differences and limitations, new memory functions, CDDA...        Last edits pages Software Code snippets, register definitions, guides on how to display stuff, use the system ROM, play music and sounds, read user input...        Last edits pages Electronics What makes everything work (or not). Schematics, chip pinouts and functions, troubleshooting hardware issues...        Last edits pages Games Remarquable games for some of their technical aspects: special effects, unusual hardware use, hidden features...        Last edits pages

About this wiki
 The wiki has pages thanks to our contributors Hosting provided by ElBarto Don't know where to start ? Try here Can't find what you're looking for ? Try our links '''Want to help ? Just register ''' or join us on IRC ! [Freenode #neogeodev] How to edit, guidelines, available templates, suggestions: The wiki 

Todo

 * See wanted pages, old pages, short pages, and Todo/Mysteries.
 * Publish asm highlighter for ConTEXT
 * Make subcategories, move/merge "BIOS calls"
 * More schematics, chip details/pinouts
 * Troubleshooting tips
 * Make a downloadable offline capture every few months ?