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<TITLE>Int 70
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Int 70 - IRQ8 - CMOS REAL-TIME CLOCK -
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 0FHP 95LX,INT 15/AH=01hAmstrad,INT 15/AH=83h
SeeAlso: INT 15/AH=86h,INT 1A/AH=02h,INT 58DESQview,MEM FEE00320h
SeeAlso: MEM 0040h:006Bh
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<h2>Int 70
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<h3><font color=#C00040>IRQ8 - CMOS REAL-TIME CLOCK</font></h3>
<p><b>Desc:</b>
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.
<p><b>Notes:</b>
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
<p><b>See Also:</b>
<a href="rb-0043.htm" tppabs="http://www.ctyme.com/intr/rb-0043.htm">INT 08</a> - <a href="rb-0066.htm" tppabs="http://www.ctyme.com/intr/rb-0066.htm">INT 0F"HP 95LX"</a> - <a href="rb-1146.htm" tppabs="http://www.ctyme.com/intr/rb-1146.htm">INT 15/AH=01h"Amstrad"</a> - <a href="javascript:if(confirm('http://www.ctyme.com/intr/rb-1512 \n\nThis file was not retrieved by Teleport Pro, because it was unavailable, or its retrieval was aborted, or the project was stopped too soon. \n\nDo you want to open it from the server?'))window.location='http://www.ctyme.com/intr/rb-1512'" tppabs="http://www.ctyme.com/intr/rb-1512"
<p><b>See Also:</b>
<a href="rb-1525.htm" tppabs="http://www.ctyme.com/intr/rb-1525.htm">INT 15/AH=86h</a> - <a href="rb-2273.htm" tppabs="http://www.ctyme.com/intr/rb-2273.htm">INT 1A/AH=02h</a> - <a href="rb-6364.htm" tppabs="http://www.ctyme.com/intr/rb-6364.htm">INT 58"DESQview"</a> - MEM FEE00320h
<p><b>See Also:</b>
MEM 0040h:006Bh
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