Main 68k memory map

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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)