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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.
What's common to every NeoGeo system: main architecture, data formats...
| 68k instructions timings | 18:39, 17 September 2017 |
| 68k program header | 23:45, 11 September 2017 |
| Memory speed | 06:35, 6 September 2017 |
How graphics are handled and displayed, from bitplanes and colors to the video output.
| Fix layer | 21:22, 16 September 2017 |
| Palette RAM | 12:05, 5 September 2017 |
| VRAM | 11:57, 5 September 2017 |
Everything related to music and sound effects: The Z80 subsystem, synthesized and sampled sound, CDDA playback...
Troubleshooting dead or glitchy MVS boards, CD laser assemblies, cartridges...
| Z80 ERROR | 00:30, 20 September 2017 |
| Screws | 18:06, 16 September 2017 |
| Memory speed | 06:35, 6 September 2017 |
Particularities of the AES and MVS systems: ROM types, memory cards, cab I/O, data security... Also cartridge boards information.
| MVS cartridge pinout | 18:31, 18 September 2017 |
| V ROM | 06:05, 6 September 2017 |
| MV-LED | 23:14, 15 August 2017 |
NeoGeo CD and CDZ specificities: Differences and limitations, new memory functions, CDDA...
Code snippets, register definitions, guides on how to display stuff, use the system ROM, play music and sounds, read user input...
| 68k instructions timings | 18:39, 17 September 2017 |
| 68k program header | 23:45, 11 September 2017 |
| 68k exception handling | 02:37, 27 August 2017 |
What makes everything work (or not). Schematics, chip pinouts and functions, troubleshooting hardware issues...
| NEO-244 | 08:32, 21 September 2017 |
| NEO-253 | 19:07, 18 September 2017 |
| Memory speed | 06:35, 6 September 2017 |
Remarquable games for some of their technical aspects: special effects, unusual hardware use, hidden features...
| The King of Fighters '96 | 21:30, 20 August 2017 |
| Slot check security | 00:40, 24 June 2017 |
| The King of Fighters '98 - The Slugfest | 20:36, 13 April 2017 |
About this wiki
- The wiki has 529 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 ?
