Int 70  C - Irq8 - Cmos Real-time Clock                                    [H]

Desc:  this interrupt is called when the real-time clock chip generates an
     alarm or periodic interrupt, among others.  The periodic interrupt
     occurs 1024 times per second.

Notes: many BIOSes turn off the periodic interrupt in the INT 70h handler
     unless in an event wait (see INT 15/AH=83h,INT 15/AH=86h).
   may be masked by setting bit 0 on I/O port A1h

See Also: INT 08,INT 0F"HP 95LX",INT 15/AH=01h"Amstrad",INT 15/AH=83h

See Also: INT 15/AH=86h,INT 1A/AH=02h,INT 58"DESQview",MEM FEE00320h

See Also: MEM 0040h:006Bh