User:Rom1: Difference between revisions

From NeoGeo Development Wiki
Jump to navigation Jump to search
mNo edit summary
mNo edit summary
Line 1: Line 1:
__NOTOC__
__NOTOC__
<div class="newhome">
<div class="newhome">
<div id="home-header" style="padding: 0.5rem 0; background: rgba(0, 0, 0, 0) linear-gradient(to bottom, #fff, #e8f2f8) repeat scroll 0 0; border-bottom:1px solid #aaa">
<div id="home-header">
<div style="min-height:110px;">
<div style="min-height:110px;">
  [[File:Neo-Geo-AES-Console-Set.png|left|x100px]]
  [[File:Neo-Geo-AES-Console-Set.png|left|x100px]]
  <h2 class="title" style="border:none;margin-top:0">The NeoGeo Development Wiki</h2>
  <h2 class="title">The NeoGeo Development Wiki</h2>
  <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>
  <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>
</div>
</div>
</div>
</div>


<div id="home-left" style="float:left; width:66%; clear:both;">
<div id="home-left">
<div id="home-cat" style="display:flex;flex-flow:row wrap;justify-content: space-around;align-items:stretch;">
<div id="home-cat">
<div style="width:31%; border-radius:0.3rem;box-shadow:0 0 0.3rem #999;margin:0.5rem 0;padding:0; overflow:hidden;text-align:center;display:flex;flex-direction:column;">
<div class="home-block">
     <div class="head" style="position:relative;height:64px;overflow:hidden;">
     <div class="head">
         <p style="margin:0">[[File:Ban2_base.jpg|link=:Category:Base system]]</p>
         <p style="margin:0">[[File:Ban2_base.jpg|link=:Category:Base system]]</p>
         <div style="position:absolute;top:25px;left:20px;font-size:30px;">[[:Category:Base system|<span class="cattitle">Base system</span>]]</div>
         <div style="position:absolute;top:25px;left:20px;font-size:30px;">[[:Category:Base system|<span class="cattitle">Base system</span>]]</div>
     </div>
     </div>
     <div class="content" style="padding:0 1rem;flex:1 0 auto;">
     <div class="content">
         <p>What's common to every NeoGeo system: main architecture, data formats...</p>
         <p>What's common to every NeoGeo system: main architecture, data formats...</p>
     </div>
     </div>
<div>
<div>
         <div>'''Last edits'''</div>
         <div>'''Last edits'''</div>
         <table style="font-size:8pt;width:100%;border-spacing:0px 5px;border-top: 1px solid #CCC;border-bottom: 1px solid #CCC;">
         <table>
             <forum>
             <forum>
                 category=Base system
                 category=Base system
Line 29: Line 29:
     </div>
     </div>
</div>
</div>
<div style="width:31%; border-radius:0.3rem;box-shadow:0 0 0.3rem #999;margin:0.5rem 0;padding:0; overflow:hidden;text-align:center;display:flex;flex-direction:column;">
<div class="home-block">
     <div class="head" style="position:relative;height:64px;overflow:hidden;">
     <div class="head">
         <p style="margin:0">[[File:Ban2_video.jpg|link=:Category:Video system]]</p>
         <p style="margin:0">[[File:Ban2_video.jpg|link=:Category:Video system]]</p>
         <div style="position:absolute;top:25px;left:20px;font-size:30px;">[[:Category:Audio system|<span class="cattitle">Videosystem</span>]]</div>
         <div style="position:absolute;top:25px;left:20px;font-size:30px;">[[:Category:Audio system|<span class="cattitle">Videosystem</span>]]</div>
     </div>
     </div>
     <div class="content" style="padding:0 1rem;flex:1 0 auto;">
     <div class="content">
         <p>How graphics are handled and displayed, from bitplanes and colors to the video output.</p>
         <p>How graphics are handled and displayed, from bitplanes and colors to the video output.</p>
     </div>
     </div>
<div>
<div>
         <div>'''Last edits'''</div>
         <div>'''Last edits'''</div>
         <table style="font-size:8pt;width:100%;border-spacing:0px 5px;border-top: 1px solid #CCC;border-bottom: 1px solid #CCC;">
         <table>
             <forum>
             <forum>
                 category=Video system
                 category=Video system
Line 48: Line 47:
     </div>
     </div>
</div>
</div>
<div style="width:31%; border-radius:0.3rem;box-shadow:0 0 0.3rem #999;margin:0.5rem 0;padding:0; overflow:hidden;text-align:center;display:flex;flex-direction:column;">
<div class="home-block">
     <div class="head" style="position:relative;height:64px;overflow:hidden;">
     <div class="head">
         <p style="margin:0">[[File:Ban2_audio.jpg|link=:Category:Audio system]]</p>
         <p style="margin:0">[[File:Ban2_audio.jpg|link=:Category:Audio system]]</p>
         <div style="position:absolute;top:25px;left:20px;font-size:30px;">[[:Category:Audio system|<span class="cattitle">Audio system</span>]]</div>
         <div style="position:absolute;top:25px;left:20px;font-size:30px;">[[:Category:Audio system|<span class="cattitle">Audio system</span>]]</div>
     </div>
     </div>
     <div class="content" style="padding:0 1rem;flex:1 0 auto;">
     <div class="content">
         <p>Everything related to music and sound effects: The Z80 subsystem, synthesized and sampled sound, CDDA playback...</p>
         <p>Everything related to music and sound effects: The Z80 subsystem, synthesized and sampled sound, CDDA playback...</p>
     </div>
     </div>
<div>
<div>
         <div>'''Last edits'''</div>
         <div>'''Last edits'''</div>
         <table style="font-size:8pt;width:100%;border-spacing:0px 5px;border-top: 1px solid #CCC;border-bottom: 1px solid #CCC;">
         <table>
             <forum>
             <forum>
                 category=Audio system
                 category=Audio system
Line 66: Line 65:
     </div>
     </div>
</div>
</div>
<div style="width:31%; border-radius:0.3rem;box-shadow:0 0 0.3rem #999;margin:0.5rem 0;padding:0;overflow:hidden;text-align:center;display:flex;flex-direction:column;">
<div class="home-block">
     <div class="head" style="position:relative;height:64px;overflow:hidden;">
     <div class="head">
         <p style="margin:0">[[File:Ban2_repair.jpg|link=:Category:Repairs]]</p>
         <p style="margin:0">[[File:Ban2_repair.jpg|link=:Category:Repairs]]</p>
         <div style="position:absolute;top:25px;left:20px;font-size:30px;">[[:Category:Repairs|<span class="cattitle">Repairs</span>]]</div>
         <div style="position:absolute;top:25px;left:20px;font-size:30px;">[[:Category:Repairs|<span class="cattitle">Repairs</span>]]</div>
     </div>
     </div>
     <div class="content" style="padding:0 1rem;flex:1 0 auto;">
     <div class="content">
         <p>Troubleshooting dead or glitchy MVS boards, CD laser assemblies, cartridges...</p>
         <p>Troubleshooting dead or glitchy MVS boards, CD laser assemblies, cartridges...</p>
     </div>
     </div>
<div>
<div>
         <div>'''Last edits'''</div>
         <div>'''Last edits'''</div>
         <table style="font-size:8pt;width:100%;border-spacing:0px 5px;border-top: 1px solid #CCC;border-bottom: 1px solid #CCC;">
         <table>
             <forum>
             <forum>
                 category=Repairs
                 category=Repairs
Line 84: Line 83:
     </div>
     </div>
</div>
</div>
<div style="width:31%; border-radius:0.3rem;box-shadow:0 0 0.3rem #999;margin:0.5rem 0;padding:0; overflow:hidden;text-align:center;display:flex;flex-direction:column;">
<div class="home-block">
      
     <div class="head">
<div class="head" style="position:relative;height:64px;overflow:hidden;">
         <p style="margin:0">[[File:Ban2_cart.jpg|link=:Category:Cartridge systems]]</p>
         <p style="margin:0">[[File:Ban2_cart.jpg|link=:Category:Cartridge systems]]</p>
         <div style="position:absolute;top:25px;left:20px;font-size:30px;">[[:Category:Cartridge systems|<span class="cattitle">Cart systems</span>]]</div>
         <div style="position:absolute;top:25px;left:20px;font-size:30px;">[[:Category:Cartridge systems|<span class="cattitle">Cart systems</span>]]</div>
     </div>
     </div>
     <div class="content" style="padding:0 1rem;flex:1 0 auto;">
     <div class="content">
         <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>
         <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>
     </div>
     </div>
<div>
<div>
         <div>'''Last edits'''</div>
         <div>'''Last edits'''</div>
         <table style="font-size:8pt;width:100%;border-spacing:0px 5px;border-top: 1px solid #CCC;border-bottom: 1px solid #CCC;">
         <table>
             <forum>
             <forum>
                 category=Cartridge systems
                 category=Cartridge systems
Line 103: Line 101:
     </div>
     </div>
</div>
</div>
<div style="width:31%; border-radius:0.3rem;box-shadow:0 0 0.3rem #999;margin:0.5rem 0;padding:0; overflow:hidden;text-align:center;display:flex;flex-direction:column;">
<div class="home-block">
     <div class="head" style="position:relative;height:64px;overflow:hidden;">
     <div class="head">
         <p style="margin:0">[[File:Ban2_cd.jpg|link=:Category:CD systems]]</p>
         <p style="margin:0">[[File:Ban2_cd.jpg|link=:Category:CD systems]]</p>
         <div style="position:absolute;top:25px;left:20px;font-size:30px;">[[:Category:CD systems|<span class="cattitle">CD systems</span>]]</div>
         <div style="position:absolute;top:25px;left:20px;font-size:30px;">[[:Category:CD systems|<span class="cattitle">CD systems</span>]]</div>
     </div>
     </div>
     <div class="content" style="padding:0 1rem;flex:1 0 auto;">
     <div class="content">
         <p>NeoGeo CD and CDZ specificities: Differences and limitations, new memory functions, CDDA...</p>
         <p>NeoGeo CD and CDZ specificities: Differences and limitations, new memory functions, CDDA...</p>
     </div>
     </div>
<div>
<div>
         <div>'''Last edits'''</div>
         <div>'''Last edits'''</div>
         <table style="font-size:8pt;width:100%;border-spacing:0px 5px;border-top: 1px solid #CCC;border-bottom: 1px solid #CCC;">
         <table>
             <forum>
             <forum>
                 category=CD systems
                 category=CD systems
Line 121: Line 119:
     </div>
     </div>
</div>
</div>
<div style="width:31%; border-radius:0.3rem;box-shadow:0 0 0.3rem #999;margin:0.5rem 0;padding:0; overflow:hidden;text-align:center;display:flex;flex-direction:column;">
<div class="home-block">
     <div class="head" style="position:relative;height:64px;overflow:hidden;">
     <div class="head">
         <p style="margin:0">[[File:Ban2_code.jpg|link=:Category:Code]]</p>
         <p style="margin:0">[[File:Ban2_code.jpg|link=:Category:Code]]</p>
         <div style="position:absolute;top:25px;left:20px;font-size:30px;">[[:Category:Code|<span class="cattitle">Software</span>]]</div>
         <div style="position:absolute;top:25px;left:20px;font-size:30px;">[[:Category:Code|<span class="cattitle">Software</span>]]</div>
     </div>
     </div>
     <div class="content" style="padding:0 1rem;flex:1 0 auto;">
     <div class="content">
         <p>Code snippets, register definitions, guides on how to display stuff, use the system ROM, play music and sounds, read user input...</p>
         <p>Code snippets, register definitions, guides on how to display stuff, use the system ROM, play music and sounds, read user input...</p>
     </div>
     </div>
<div>
<div>
         <div>'''Last edits'''</div>
         <div>'''Last edits'''</div>
         <table style="font-size:8pt;width:100%;border-spacing:0px 5px;border-top: 1px solid #CCC;border-bottom: 1px solid #CCC;">
         <table>
             <forum>
             <forum>
                 category=Code
                 category=Code
Line 139: Line 137:
     </div>
     </div>
</div>
</div>
<div style="width:31%; border-radius:0.3rem;box-shadow:0 0 0.3rem #999;margin:0.5rem 0;padding:0; overflow:hidden;text-align:center;display:flex;flex-direction:column;">
<div class="home-block">
     <div class="head" style="position:relative;height:64px;overflow:hidden;">
     <div class="head">
         <p style="margin:0">[[File:Ban2_chips.jpg|link=:Category:Chips]]</p>
         <p style="margin:0">[[File:Ban2_chips.jpg|link=:Category:Chips]]</p>
         <div style="position:absolute;top:25px;left:20px;font-size:30px;">[[:Category:Chips|<span class="cattitle">Electronics</span>]]</div>
         <div style="position:absolute;top:25px;left:20px;font-size:30px;">[[:Category:Chips|<span class="cattitle">Electronics</span>]]</div>
     </div>
     </div>
     <div class="content" style="padding:0 1rem;flex:1 0 auto;">
     <div class="content">
         <p>What makes everything work (or not). Schematics, chip pinouts and functions, troubleshooting hardware issues...</p>
         <p>What makes everything work (or not). Schematics, chip pinouts and functions, troubleshooting hardware issues...</p>
     </div>
     </div>
<div>
<div>
         <div>'''Last edits'''</div>
         <div>'''Last edits'''</div>
         <table style="font-size:8pt;width:100%;border-spacing:0px 5px;border-top: 1px solid #CCC;border-bottom: 1px solid #CCC;">
         <table>
             <forum>
             <forum>
                 category=Chips
                 category=Chips
Line 157: Line 155:
     </div>
     </div>
</div>
</div>
<div style="width:31%; border-radius:0.3rem;box-shadow:0 0 0.3rem #999;margin:0.5rem 0;padding:0; overflow:hidden;text-align:center;display:flex;flex-direction:column;">
<div class="home-block">
     <div class="head" style="position:relative;height:64px;overflow:hidden;">
     <div class="head">
         <p style="margin:0">[[File:Ban2_games.jpg|link=:Category:Games]]</p>
         <p style="margin:0">[[File:Ban2_games.jpg|link=:Category:Games]]</p>
         <div style="position:absolute;top:25px;left:20px;font-size:30px;">[[:Category:Games|<span class="cattitle">Games</span>]]</div>
         <div style="position:absolute;top:25px;left:20px;font-size:30px;">[[:Category:Games|<span class="cattitle">Games</span>]]</div>
     </div>
     </div>
     <div class="content" style="padding:0 1rem;flex:1 0 auto;">
     <div class="content">
         <p>Remarquable games for some of their technical aspects: special effects, unusual hardware use, hidden features...</p>
         <p>Remarquable games for some of their technical aspects: special effects, unusual hardware use, hidden features...</p>
     </div>
     </div>
<div>
<div>
         <div>'''Last edits'''</div>
         <div>'''Last edits'''</div>
         <table style="font-size:8pt;width:100%;border-spacing:0px 5px;border-top: 1px solid #CCC;border-bottom: 1px solid #CCC;">
         <table>
             <forum>
             <forum>
                 category=Games
                 category=Games
Line 179: Line 177:
</div>
</div>


<div id="home-right" style="float:right; width:33%">
<div id="home-right">
   <div class="home-block" style="border-radius:0.3rem;box-shadow:0 0 0.3rem #999;margin:0.5rem;padding: 0.1rem 1rem 1rem;">
   <div class="home-block">
==[[Special:RecentChanges|Recent changes]] (minor edits hidden)==
==[[Special:RecentChanges|Recent changes]] (minor edits hidden)==
{{Special:Recentchanges/4,hideminor}}
{{Special:Recentchanges/4,hideminor}}
   </div>
   </div>


   <div class="home-block" style="border-radius:0.3rem;box-shadow:0 0 0.3rem #999;margin:0.5rem;padding: 0.1rem 1rem 1rem;">
   <div class="home-block">
==About this wiki==
==About this wiki==
     <ul style="list-style:outside none none;">
     <ul style="list-style:outside none none;">
Line 197: Line 195:
   </div>
   </div>


   <div class="home-block" style="border-radius:0.3rem;box-shadow:0 0 0.3rem #999;margin:0.5rem;padding: 0.1rem 1rem 1rem;">
   <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]].

Revision as of 19:27, 16 September 2017

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...

Last edits
BIOS RAM locations21:25, 11 August 2025
Pinouts15:34, 23 July 2025
Memory mapped registers19:21, 10 April 2025
42 pages

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

Last edits
Slowdown07:12, 12 September 2025
Fix bankswitching21:25, 14 May 2025
Sprites21:18, 14 May 2025
36 pages

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

Last edits
NEO-ZMC15:45, 1 May 2025
ADPCM15:17, 15 March 2025
CDDA03:49, 10 February 2025
28 pages

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

Last edits
Replacement chip20:21, 25 January 2026
CD drive07:36, 1 November 2025
List of ROM chips00:03, 26 September 2025
45 pages

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

Last edits
Category:Cartridge boards13:23, 10 January 2026
Cartridges18:19, 7 January 2026
PROG board07:40, 7 January 2026
106 pages

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

Last edits
CD drive07:36, 1 November 2025
CDROM-2 board01:49, 18 August 2025
CD hardware versions01:44, 18 August 2025
48 pages

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

Last edits
Development tools14:00, 6 October 2025
PLAYER START subroutine12:00, 6 October 2025
Slowdown07:12, 12 September 2025
60 pages

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

Last edits
Replacement chip20:21, 25 January 2026
NEO-SMA15:37, 15 January 2026
NEO-CMC23:04, 10 January 2026
109 pages

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

Last edits
The King of Fighters '99 - Millennium Battle15:07, 15 January 2026
Garou - Mark of the Wolves15:06, 15 January 2026
Metal Slug 315:05, 15 January 2026
241 pages

Recent changes (minor edits hidden)

List of abbreviations:
N
This edit created a new page (also see list of new pages)
m
This is a minor edit
b
This edit was performed by a bot
(±123)
The page size changed by this number of bytes

25 January 2026

     20:21  Replacement chip‎ diffhist +472‎ Furrtek talk contribs (Updated options, reasoning, done/todo)

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 ?


Retrieved from "https://wiki.neogeodev.org/index.php?title=User:Rom1&oldid=5772"