#define	CLOCK	0160770
#define MON_DAY CLOCK
#define HR_MIN	CLOCK + 2
#define SEC	CLOCK + 4
#define CLKSTAT	CLOCK + 6
#define RESET	SEC
#define CLKRDY	0200
/*           masks    */

#define MONMASK	0x0f00
#define DAYMASK	0x001f
#define HRMASK	0x1f00
#define MINMASK	0x003f
#define SECMASK	0x003f
#define MDMASK	MONMASK | DAYMASK	/* month/day mask  */
#define HMMASK	HRMASK | MINMASK	/* hour/min  mask */