SystemID DOS
0	S	_	1		New addresses
023B9A18	d	u	0	Physical RAM	Hole number (-1)
0069DF4C	d	u	0	Physical RAM	Ball can be played
023B9A04	w	u	0	Physical RAM	X (read only)
023B9A06	w	u	0	Physical RAM	Y (read only)
023B99FC	w	u	0	Physical RAM	Z (read only)
006ACFB4	b	u	0	Physical RAM	Gate (read-only)
00307F80	w	u	0	Physical RAM	Related to cursor?
00307F82	w	u	0	Physical RAM	Related to cursor?