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<!DOCTYPE HTML PUBLIC "-//IETF//DTD HTML//EN">
<html>
<head>
<meta http-equiv="Content-Type"
content="text-html; charset=Windows-1252">
<title>INT 15,41 - Wait on External Event (convertible only)</title>
<meta name="FORMATTER" content="Microsoft FrontPage 2.0">
</head>
<body>
<h1><a name="kap_interrupt_0850"></a>INT 15,41 - Wait on External
Event (convertible only)</h1>
<p> AH = 41h</p>
<p> AL = condition type:</p>
<p> <20>7<EFBFBD>6<EFBFBD>5<EFBFBD>4<EFBFBD>3<EFBFBD>2<EFBFBD>1<EFBFBD>0<EFBFBD> AL</p>
<p> <20> <20> <20> <20> <20> +-------- conditions (codes) to wait for</p>
<p> <20> <20> <20> <20> +--------- reserved</p>
<p> <20> <20> <20> +---------- 1=port address/0=user byte</p>
<p> +--------------- reserved</p>
<p> % Condition codes:</p>
<p> 0 = any external event</p>
<p> 1 = compare and return if equal</p>
<p> 2 = compare and return if not equal</p>
<p> 3 = test and return if not zero</p>
<p> 4 = test and return if zero</p>
<p> BH = condition compare or mask value</p>
<p> BL = time-out value times 55 ms, 0 if no time limit</p>
<p> DX = I/O port address (if AL bit 4 = 1)</p>
<p> ES:DI = pointer to user byte (if AL bit 4 = 0)</p>
<hr>
<table border="0" width="100%" cols="3">
<tr>
<td width="33%">Zur<EFBFBD>ck zum <a href="inte1at0.htm">Interrupt
Info</a>. </td>
<td align="center" width="33%"><a
href="mailto:Roger.Morgan@htl-steyr.ac.at">Roger Morgan</a>
/ 1998 </td>
<td align="right" width="33%"><font size="1">L.<2E>nderung <!--webbot
bot="Timestamp" s-type="EDITED" s-format="%d.%m.%y"
startspan -->29.03.99<!--webbot bot="Timestamp" endspan
i-checksum="13964" --> </font></td>
</tr>
</table>
</body>
</html>