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Revision as of 02:35, 12 July 2011 by Furrtek (talk | contribs)
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Welcome to the NeoGeo Development Wiki

This wiki concerns every technical aspect of the SNK NeoGeo hardware and software (AES, MVS, CD and CDZ).

Its aim is to provide the most accurate and up to date information, to help homebrew development and repairs.

The wiki has 569 pages. Contributors list.

Recent changes ("minor" edits hidden)

No changes during the given period match these criteria.

Categories

File:Ban base.jpg

What's common to every NeoGeo systems: main architecture, data formats, BIOS functions...

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 chips.jpg

What makes everything work (or not), physically. 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

File:Ban cart.jpg

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

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:
CD drive control06:23, 8 October 2023
Reading CDDA sound levels04:14, 26 September 2023
LC9800014:23, 24 January 2021

Pages in category: 48

File:Ban code.jpg

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

Last edits:
Development tools19:34, 9 February 2024
Eyecatcher20:41, 26 November 2023
68k interrupts23:50, 16 October 2023

Pages in category: 60

File:Ban tools.jpg

Assemblers, emulators, utilities, cheatsheets, automations... Anything handy for developement.

Last edits:
Neo Sprite Viewer02:35, 18 December 2023
Emulators18:37, 15 August 2023
YY-CHR20:44, 1 December 2022

Pages in category: 12

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 Mysteries.
  • Make subcategories, move/merge "BIOS calls"
  • More schematics, chip details/pinouts
  • Troubleshooting tips
  • Make a downloadable offline capture every few months ?