_AbsExecBase    equ     4
_cartridge      equ     $f00000
_bootrom        equ     $f80000
_romstart       equ     $fc0000
_romend         equ     $ffffff

        xdef    _AbsExecBase
        xdef    _cartridge
        xdef    _bootrom
        xdef    _romstart
        xdef    _romend