Main 68k memory map

Without MegaCD

Start	End	Size	Description
$000000	$3FFFFF	4MiB	Vector table, ROM Cartridge
$400000	$7FFFFF	4MiB	Expension port
$A00000	$A0FFFF	64KiB	Z80 Area
$A10000	$A10FFF		IO Registers
$A11000	$A11FFF		Z80 Control
$C00000	$DFFFFF		VDP Ports
$E00000	$FFFFFF		RAM (Mirrored every $FFFF)