Category: <b>hardware</b>
<br>Flags: callout or callback (usually hooked rather than called)<p>
<pre><b>INT 70 - IRQ8 - CMOS REAL-TIME CLOCK</b>

Desc:	this interrupt is called when the real-time clock chip generates an
	  alarm or periodic interrupt, among others (see CMOS 0Bh).  The
	  periodic interrupt by default 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
SeeAlso: INT 08,INT 0F"HP 95LX",INT 15/AH=01h"Amstrad",INT 15/AH=83h
SeeAlso: INT 15/AH=86h,INT 1A/AH=02h,INT 58"DESQview",MEM FEE00320h
SeeAlso: MEM 0040h:006Bh
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