<html>
<head>
<title>
17.3.W 'W' Instructions
</title>
<body>
<pre>
<a name="17-03-W"></a>
Prev: <a href="chp17-v3.htm">17.3.V 'V' Instructions </a>
Next: <a href="chp17-x3.htm">17.3.X 'X' Instructions </a>
<hr>
<h2>
17.3.W 'W' Instructions
</h2>
<a name="17-03-WAIT"></a>
<h3>WAIT -- Wait until BUSY# Pin is Inactive (HIGH)</h3>
Opcode Instruction Clocks Description
9B WAIT 6 min. Wait until BUSY pin is inactive (HIGH)
<b>Description</b>
WAIT suspends execution of 80386 instructions until the BUSY# pin is
inactive (high). The BUSY# pin is driven by the 80287 numeric processor
extension.
<b>Flags Affected</b>
None
<b>Protected Mode Exceptions</b>
#NM if the task-switched flag in the machine status word (the lower 16 bits
of register CR0) is set; #MF if the ERROR# input pin is asserted (i.e., the
80287 has detected an unmasked numeric error)
<b>Real Address Mode Exceptions</b>
Same exceptions as in Protected Mode
<b>Virtual 8086 Mode Exceptions</b>
Same exceptions as in Protected Mode
<hr>
Prev: <a href="chp17-v3.htm">17.3.V 'V' Instructions </a>
Next: <a href="chp17-x3.htm">17.3.X 'X' Instructions </a>
</pre>
</body>
</html>
|
