ROM_START               := 0x0000
ROM_SIZE                := 0x8000
ROM_END                 := 0x7fff
RAM_START               := 0x8000
RAM_SIZE                := 0x8000
RAM_END                 := 0xffff

SHARED_MEM_START        := 0xc000
SHARED_MEM_SIZE         := 0x4000
SHARED_MEM_END          := 0xffff

BIOS_STACK_TOP          := 0xffff
BIOS_ROM_START          := 0x0080
BIOS_ROM_SIZE           := 0x0380

BASIC_ROM_START		:= 0x0400
BASIC_ROM_SIZE		:= 0x2000

BIOS_RAM_START		:= 0xc000
BASIC_RAM_START		:= 0xc800