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<div class="newhome">
==<center>Welcome to the NeoGeo Development Wiki</center>==
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<div style="min-height:110px;">
<center>This wiki is about every technical aspect of the SNK NeoGeo hardware and software (AES, MVS, CD and CDZ).<br>
  [[File:Neo-Geo-AES-Console-Set.png|left|x100px|link=]]
Its aim is to provide the most detailed, accurate and up to date information, to help homebrew development and repairs.<br>
  <h2 class="title">The NeoGeo Development Wiki</h2>
The wiki has {{NUMBEROFARTICLES}} pages. [[Special:Userlist|Contributors list]]. Hosting provided by [[User:ElBarto|ElBarto]].<br>'''Don't know where to start ? Try [[How_to_start|here]]'''.Can't find what you're looking for ? Try our [[links]].<BR>  
  <p class="headline">This wiki is about every technical aspects of the SNK NeoGeo hardware and software (AES, MVS, CD and CDZ).<br />Our aim is to provide the most detailed, accurate and up to date information for preservation, homebrew development and repairs.</p>
Join us on IRC ! [[irc://irc.freenode.net/neogeodev Freenode #neogeodev]]</center>
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==[[Special:RecentChanges|Recent changes]] (minor edits hidden)==
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==Categories==


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    <div class="head cat-base">[[:Category:Base system|<span class="cattitle"><span>Base system</span></span>]]</div>
[[File:Ban_base.jpg|link=:Category:Base system]]<div style="position: relative; left: 20px; top: -42px; height: 0px; font-size: 30px; text-align: left;">[[:Category:Base system|<span class="cattitle">Base system</span>]]</div>
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What's common to every NeoGeo systems: main architecture, data formats, BIOS functions...
        <p>What's common to every NeoGeo system: main architecture, data formats...</p>
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    <div class="head cat-video">[[:Category:Video system|<span class="cattitle"><span>Video system</span></span>]]</div>
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[[File:Ban_video.jpg|link=:Category:Video system]]<div style="position: relative; left: 20px; top: -42px; height: 0px; font-size: 30px; text-align: left;">[[:Category:Video system|<span class="cattitle">Video system</span>]]</div>
        <p>How graphics are handled and displayed, from bitplanes and colors to the video output.</p>
How graphics are handled and displayed, from bitplanes and colors to the video output.
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    <div class="head cat-audio">[[:Category:Audio system|<span class="cattitle"><span>Audio system</span></span>]]</div>
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[[File:Ban_audio.jpg|link=:Category:Audio system]]<div style="position: relative; left: 20px; top: -42px; height: 0px; font-size: 30px; text-align: left;">[[:Category:Audio system|<span class="cattitle">Audio system</span>]]</div>
        <p>Everything related to music and sound effects: The Z80 subsystem, synthesized and sampled sound, CDDA playback...</p>
Everything related to music and sound effects: The Z80 subsystem, synthesized and sampled sound, CDDA playback...
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    <div class="head cat-repair">[[:Category:Repairs|<span class="cattitle"><span>Repairs</span></span>]]</div>
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[[File:Ban_tools.jpg|link=:Category:Repairs]]<div style="position: relative; left: 20px; top: -42px; height: 0px; font-size: 30px; text-align: left;">[[:Category:Repairs|<span class="cattitle">Repairing</span>]]</div>
        <p>Troubleshooting dead or glitchy MVS boards, CD laser assemblies, cartridges...</p>
Troubleshooting dead or glitchy MVS boards, CD laser assemblies, cartridges...
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    <div class="head cat-cart">[[:Category:Cartridge systems|<span class="cattitle"><span>Cart systems</span></span>]]</div>
 
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        <p>Particularities of the AES and MVS systems: ROM types, memory cards, cab I/O, data security... Also [[:Category:Cartridge boards|cartridge boards]] information.</p>
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[[File:Ban_cart.jpg|link=:Category:Cartridge systems]]<div style="position: relative; left: 20px; top: -42px; height: 0px; font-size: 30px; text-align: left;">[[:Category:Cartridge systems|<span class="cattitle">Cart systems</span>]]</div>
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Particularities of the AES and MVS systems: ROM types, memory cards, cab I/O, data security...
        <div>'''Last edits'''</div>
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Pages in category: {{PAGESINCAT:Cartridge systems}}
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    <div class="head cat-cd">[[:Category:CD systems|<span class="cattitle"><span>CD systems</span></span>]]</div>
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[[File:Ban_cd.jpg|link=:Category:CD systems]]<div style="position: relative; left: 20px; top: -42px; height: 0px; font-size: 30px; text-align: left;">[[:Category:CD systems|<span class="cattitle">CD systems</span>]]</div>
        <p>NeoGeo CD and CDZ specificities: Differences and limitations, new memory functions, CDDA...</p>
NeoGeo CD and CDZ specificities: Differences and limitations, new memory functions, CDDA...
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        <p>Code snippets, register definitions, guides on how to display stuff, use the system ROM, play music and sounds, read user input...</p>
Code snippets, register definitions, guides on how to display stuff, use BIOS functions, play music and sounds, read user input...
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    <div class="head cat-chips">[[:Category:Chips|<span class="cattitle"><span>Electronics</span></span>]]</div>
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        <p>What makes everything work (or not). Schematics, chip pinouts and functions, troubleshooting hardware issues...</p>
[[File:Ban_chips.jpg|link=:Category:Chips]]<div style="position: relative; left: 20px; top: -42px; height: 0px; font-size: 30px; text-align: left;">[[:Category:Chips|<span class="cattitle">Electronics</span>]]</div>
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What makes everything work (or not), physically. Schematics, chip pinouts and functions, troubleshooting hardware issues...
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        <p>Remarquable games for some of their technical aspects: special effects, unusual hardware use, hidden features...</p>
 
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==[[Special:RecentChanges|Recent changes]] (minor edits hidden)==
{{Special:Recentchanges/4,hideminor}}
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'''How to edit, guidelines, available templates, suggestions: [[The wiki]]'''
  <div class="home-block">
==About this wiki==
    <ul style="list-style:outside none none;">
      <li>The wiki has {{NUMBEROFARTICLES}} pages thanks to our [[Special:Userlist|contributors]]</li>
      <li>Hosting provided by [[User:ElBarto|ElBarto]]</li>
      <li>Don't know where to start ? Try [[How_to_start|here]]</li>
      <li>Can't find what you're looking for ? Try our [[links]]</li>
      <li>'''Want to help ? Just [[Join_wiki|register]] ''' or join us on IRC ! [[irc://irc.libera.chat/neogeodev Libera.chat #neogeodev]]</li>
      <li>'''How to edit, guidelines, available templates, suggestions: [[The wiki]]'''</li>
    </ul>
  </div>
 
  <div class="home-block">


==Todo==
==Todo==
* See [[Special:WantedPages|wanted pages]], [[Special:AncientPages|old pages]], [[Special:ShortPages|short pages]], and [[Todo/Mysteries]].
* See [[Special:WantedPages|wanted pages]], [[Special:AncientPages|old pages]], [[Special:ShortPages|short pages]], and [[Todo/Mysteries]].
* Publish asm highlighter for ConTEXT
* Publish asm highlighter for ConTEXT
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* Troubleshooting tips
* Troubleshooting tips
* Make a downloadable offline capture every few months ?
* Make a downloadable offline capture every few months ?
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__NOTOC__
 
</div>

Latest revision as of 20:15, 20 May 2021

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
Wait cycle23:23, 1 October 2024
NGH number11:54, 17 June 2024
Z80 port map09:19, 28 January 2024
42 pages
Video system

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
36 pages
Audio system

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
28 pages
Repairs

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
45 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
Schematics13:18, 23 November 2024
SLOT6 board20:59, 23 June 2024
Neo Print19:18, 21 March 2024
106 pages
CD systems

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
48 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
Loading files04:10, 17 November 2024
Development tools19:34, 9 February 2024
Eyecatcher20:41, 26 November 2023
60 pages
Electronics

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

Last edits
NEO-C102:38, 29 November 2024
NEO-CMC22:02, 25 November 2024
Schematics13:18, 23 November 2024
109 pages
Games

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
241 pages

Recent changes (minor edits hidden)

No changes during the given period match these criteria.

About this 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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