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What's common to every NeoGeo systems: main architecture, data formats, BIOS functions...
What's common to every NeoGeo system: main architecture, data formats, ...
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Code snippets, register definitions, guides on how to display stuff, use BIOS functions, play music and sounds, read user input...
Code snippets, register definitions, guides on how to display stuff, use the system ROM, play music and sounds, read user input...
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What makes everything work (or not), physically. Schematics, chip pinouts and functions, troubleshooting hardware issues...
What makes everything work (or not). Schematics, chip pinouts and functions, troubleshooting hardware issues...
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Revision as of 02:41, 16 March 2016

File:Logo.png

Welcome to 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.
The wiki has 569 pages. Contributors list. 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]

Recent changes (minor edits hidden)

List of abbreviations:
N
This edit created a new page (also see list of new pages)
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This is a minor edit
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17 November 2024

     04:10  Loading files‎ diffhist +327‎ Iq 132 talk contribs

15 November 2024

     13:04  Logo file‎ diffhist +177‎ Iq 132 talk contribs

Categories

File:Ban base.jpg

What's common to every NeoGeo system: main architecture, data formats, ...

Last edits:
Wait cycle23:23, 1 October 2024
NGH number11:54, 17 June 2024
Z80 port map09:19, 28 January 2024

Pages in category: 42

File:Ban video.jpg

How graphics are handled and displayed, from bitplanes and colors to the video output.

Last edits:
Sprite graphics format06:24, 10 July 2024
VRAM00:42, 15 March 2024
Eyecatcher20:41, 26 November 2023

Pages in category: 36

File:Ban audio.jpg

Everything related to music and sound effects: The Z80 subsystem, synthesized and sampled sound, CDDA playback...

Last edits:
Z80 port map09:19, 28 January 2024
NEO-ZMC09:16, 28 January 2024
Z8008:21, 28 January 2024

Pages in category: 28

File:Ban tools.jpg

Troubleshooting dead or glitchy MVS boards, CD laser assemblies, cartridges...

Last edits:
SLOT6 board20:59, 23 June 2024
NEO-27321:17, 15 June 2024
Repair help18:24, 20 May 2024

Pages in category: 45

File:Ban cart.jpg

Particularities of the AES and MVS systems: ROM types, memory cards, cab I/O, data security... Also cartridge boards information.

Last edits:
SLOT6 board20:59, 23 June 2024
Neo Print19:18, 21 March 2024
P ROM18:27, 11 March 2024

Pages in category: 106

File:Ban cd.jpg

NeoGeo CD and CDZ specificities: Differences and limitations, new memory functions, CDDA...

Last edits:
Loading files04:10, 17 November 2024
Logo file13:04, 15 November 2024
CD drive control06:23, 8 October 2023

Pages in category: 48

File:Ban code.jpg

Code snippets, register definitions, guides on how to display stuff, use the system ROM, play music and sounds, read user input...

Last edits:
Loading files04:10, 17 November 2024
Development tools19:34, 9 February 2024
Eyecatcher20:41, 26 November 2023

Pages in category: 60

File:Ban chips.jpg

What makes everything work (or not). Schematics, chip pinouts and functions, troubleshooting hardware issues...

Last edits:
NEO-27321:17, 15 June 2024
NEO-C112:46, 8 May 2024
P ROM18:27, 11 March 2024

Pages in category: 109

Remarquable games for some of their technical aspects: special effects, unusual hardware use, hidden features...

Last edits:
Super Bubble Pop03:56, 6 April 2023
Puzzle Bobble01:55, 6 April 2023
Neo 204818:17, 11 March 2023
Pages in category: 241

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 ?


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