[MAME]

Marine Boy 

Memory map (preliminary)


MAIN CPU:

0000-7fff ROM (not all games use the entire region)
8000-87ff RAM
8c18-8c3f sprite RAM (Hoccer only)
8800-8bff video RAM	 \ (contains sprite RAM in invisible regions)
9000-93ff color RAM	 /

read:
a000	  IN0
a800	  IN1
b000	  DSW
b800      IN2/watchdog reset

write:
9800      column scroll
9a00      char palette bank bit 0 (not used by Hoccer)
9c00      char palette bank bit 1 (not used by Hoccer)
a000      NMI interrupt acknowledge/enable
a001      flipy
a002      flipx
b800	  ???


I/0 ports:
write
08        8910  control
09        8910  write

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