Bitfields for CauseWay system flags:
Bit(s)	Description	)
 0	32-bit code
 1	virtual memory manage enabled
 3-2	mode: 00 raw extended memory, 01 VCPI, 10 DPMI
 4	DPMI available
 5	VCPI available
 6	no memory managers
 7	application descriptor table type: 0 = GDT, 1 = LDT
 14-8	reserved
 15	debugging engine present