Todo/Mysteries

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
 * How to start page
 * LC8953 microcode
 * How does the Mahjong controller works ? (SNK doc)