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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...
| Z80 port map | 02:21, 14 May 2018 |
| SNK Patents | 00:04, 28 March 2018 |
| Memory mapped registers | 12:26, 11 February 2018 |
How graphics are handled and displayed, from bitplanes and colors to the video output.
| VRAM | 11:38, 22 May 2018 |
| Eyecatcher | 11:27, 8 May 2018 |
| Rendering logic | 21:54, 6 May 2018 |
Everything related to music and sound effects: The Z80 subsystem, synthesized and sampled sound, CDDA playback...
| YM2610 timers | 00:41, 25 May 2018 |
| FM | 01:19, 23 May 2018 |
| Z80 port map | 02:21, 14 May 2018 |
Troubleshooting dead or glitchy MVS boards, CD laser assemblies, cartridges...
| MV1A PALs | 06:35, 10 May 2018 |
| Repair help | 00:11, 30 April 2018 |
| RAM chip | 19:27, 29 April 2018 |
Particularities of the AES and MVS systems: ROM types, memory cards, cab I/O, data security... Also cartridge boards information.
| Multicarts | 11:44, 16 May 2018 |
| MV1A | 15:37, 13 May 2018 |
| MV1C | 10:16, 11 May 2018 |
NeoGeo CD and CDZ specificities: Differences and limitations, new memory functions, CDDA...
| Logo file | 02:27, 14 May 2018 |
| OBJ file | 04:32, 27 March 2018 |
| Copy protection | 23:50, 7 October 2017 |
Code snippets, register definitions, guides on how to display stuff, use the system ROM, play music and sounds, read user input...
| YM2610 timers | 00:41, 25 May 2018 |
| Eyecatcher | 11:27, 8 May 2018 |
| Development tools | 21:27, 8 April 2018 |
What makes everything work (or not). Schematics, chip pinouts and functions, troubleshooting hardware issues...
| NEO-MGA | 09:34, 11 May 2018 |
| MV1A PALs | 06:35, 10 May 2018 |
| Palette RAM | 22:01, 29 April 2018 |
Remarquable games for some of their technical aspects: special effects, unusual hardware use, hidden features...
| 161-in-1 Series 1 | 09:04, 7 May 2018 |
| Ghostlop (prototype) | 01:11, 11 March 2018 |
| World Heroes 2 Jet | 04:53, 4 March 2018 |
About this wiki
- The wiki has 546 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 ?
