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Welcome to the MegaDrive Development Wiki

This wiki is about every technical aspect of the SEGA MegaDrive hardware and software.

Its aim is to provide the most detailed, accurate and up to date information, to help homebrew development and repairs.
The wiki has 20 pages. Contributors list.
Don't know where to start ? Try here.

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Categories

Main architecture, data formats... Last edits: Z80 Area 12:23, 28 April 2019 MD Rom Header 11:54, 19 January 2017 68k vector table 11:54, 19 January 2017 Pages in category: 9	Particularities of the 32X system Last edits: Pages in category: 0	MegaCD specificities Last edits: Pages in category: 0
Video system How graphics are handled and displayed, from bitplanes and colors to the video output. Last edits: VDP DMA 16:39, 4 February 2013 VDP Pattern 06:48, 17 July 2012 VDP Ports 07:10, 14 July 2012 Pages in category: 9	Audio system Everything related to music and sound effects: The Z80 subsystem, synthesized and sampled sound, CDDA playback... Last edits: Pages in category: 2	Code / HowTo's Code snippets, register definitions, guides on how to display stuff, use BIOS functions, play music and sounds, read user input... Last edits: MD Rom Header 11:54, 19 January 2017 68k vector table 11:54, 19 January 2017 Reading MD6 Joypad 11:53, 19 January 2017 Pages in category: 4
Chips Chip pinouts and functions, troubleshooting hardware issues... Last edits: 315-5345 18:23, 9 February 2013 315-5308 19:48, 9 January 2013 315-5364 07:41, 9 January 2013 Pages in category: 20	Boards Boards schematics and functions Last edits: 171-6330 14:37, 15 March 2013 171-5978 14:37, 15 March 2013 171-6583B 18:04, 14 March 2013 Pages in category: 6	Tools & Repair Assemblers, emulators, utilities, cheatsheets, automations... Anything handy for developement. Last edits: Pages in category: 0