Todo/Mysteries

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Revision as of 03:30, 18 June 2012 by Furrtek (talk | contribs)
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Official SNK doc infos

  • First 80 bytes of code are switchable through REG_SWPBIOS/REG_SWPROM and switched to the BIOS part on startup ($0~$7F = $C00000~$C0007F)

Registers

  • What are $380011, $380061, $380065, $380067, and $3800E1 used for ?

SP-E init code:

	move.b	d0,$380065
	move.b	d0,$380067
  • CD registers

Others

  • CDDA playback (needs more research in cd bios)
  • neo cd schematics
  • dump lc98000 version neocd bios
  • lspc-a0, pro-b0 and pro-c0 pinouts
  • How to start page
  • LC8953 microcode
  • How does the Mahjong controller works ? (SNK doc)