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docs/interrupts/int-html0/inte2h0w.htm
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docs/interrupts/int-html0/inte2h0w.htm
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<!DOCTYPE HTML PUBLIC "-//IETF//DTD HTML//EN">
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<html>
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<head>
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<meta http-equiv="Content-Type"
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content="text-html; charset=Windows-1252">
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<title>INT 1C - System Timer Tick (User Routine)</title>
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<meta name="FORMATTER" content="Microsoft FrontPage 2.0">
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</head>
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<body>
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<h1><a name="kap_interrupt_1380"></a>INT 1C - System Timer Tick
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(User Routine)</h1>
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<p> - called by ~INT 8~, approximately 18.206 times per second</p>
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<p> (unless the program modifies the ~8253~ PIT</p>
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<p> - this is a user routine which the BIOS defaults to a simple
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~IRET~</p>
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<p> - this interrupt vector can be used for TSR popup utilities,</p>
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<p> animated graphics updates and event polling</p>
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<p> - since many TSR's don't maintain the integrity of the
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interrupt</p>
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<p> call chain, relying on this for TSR popup isn't recommended</p>
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<hr>
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<table border="0" width="100%" cols="3">
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<tr>
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<td width="33%">Zur<EFBFBD>ck zum <a href="inte1at0.htm">Interrupt
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Info</a>. </td>
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<td align="center" width="33%"><a
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href="mailto:Roger.Morgan@htl-steyr.ac.at">Roger Morgan</a>
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/ 1998 </td>
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<td align="right" width="33%"><font size="1">L.<2E>nderung <!--webbot
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bot="Timestamp" s-type="EDITED" s-format="%d.%m.%y"
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startspan -->29.03.99<!--webbot bot="Timestamp" endspan
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i-checksum="13964" --> </font></td>
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</tr>
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</table>
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</body>
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</html>
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