/* Memory relocation addresses and bits. The way the relocation
 * works is that the DEC PAR's are set up to map two complete
 * address spaces, KI/KD and UI/UD, into 18 bits, like so:
 *
 *	KI0-7
 *	KD0-6
 *	UI0-7
 *	UD0-7
 *	KD7
 *
 * The reason that the KD7 page is there is that some devices are
 * on the 18 bit bus, and you need to access their registers directly.
 * The most important of these are the ENABLE box map and control
 * registers. These registers CANNOT be accessed by the common hack
 * of frobbing the regular U space mapping registers; they could be
 * accessed by playing with the DEC U space mapping registers, but
 * in the general case (/dev/mem) this will not win. This is an
 * important limitation to keep in mind. From 18 bits, there is
 * a second set of PARs (which the system treats as its regular
 * PARs) to access 22 bit address space. These registers are indexed
 * into using the high 5 bits of the UNIBUS address. Thre is also
 * a separate UNIBUS map which looks just like the original for use by
 * DMA devices. See the ABLE documentation for more details.
 */


#define	UISD	0177600		/* first user I-space descriptor register */
#define	UISA	0163736		/* first user I-space address register */
#define	UDSA	0163756		/* first user D-space address register */
#define	RO	02		/* access abilities */
#define	RW	06
#define	ED	010		/* extend direction */
#define	TX	020		/* Software: text segment */
#define	OCRO	RO		/* Seg desc for one click read only seg */
#define	OCRW	RW		/* and read/write */

#define	UBMAP	0170200		/* address to access 11/70 UNIBUS map */
#define	MEMORY	0177740		/* 11/70 "memory" subsystem */
#define	MEMCSR	0172100		/* memory CSR's */
#define	MEMFE	01		/* fault on memory error enable */

int	*ka6;			/* 11/40 KISA6; 11/45 KDSA6 */

/* structure used to address
 * a sequence of integers.
 */

struct {	int	r[];
	};