Format of returned data structure for ANARKEY v2.0:
Offset	Size	Description	)
 -7   7 BYTEs	signature ('ANARKEY')
 00h	WORD	??? (I see 0001h in v2.0)
 02h	WORD	??? (I see 0001h in v2.0)
 04h	WORD	??? (I see 0 in v2.0)
 06h	WORD	PSP segment of next program loaded