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WAIT.htm
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<!DOCTYPE HTML PUBLIC "-//IETF//DTD HTML 2.0//EN">
<HTML>
<HEAD>
<TITLE>80386 Programmer's Reference Manual -- Opcode WAIT</TITLE>
</HEAD>
<BODY STYLE="width:80ch">
<B>up:</B> <A HREF="c17.htm">
Chapter 17 -- 80386 Instruction Set</A><BR>
<B>prev:</B><A HREF="VERR.htm"> VERR Verify a Segment for Reading or Writing</A><BR>
<B>next:</B><A HREF="XCHG.htm"> XCHG Exchange Register/Memory with Register</A>
<P>
<HR>
<P>
<H1>WAIT -- Wait until BUSY# Pin is Inactive (HIGH)</H1>
<PRE>
Opcode Instruction Clocks Description
9B WAIT 6 min. Wait until BUSY pin is inactive (HIGH)
</PRE>
<H2>Description</H2>
WAIT suspends execution of 80386 instructions until the BUSY# pin is
inactive (high). The BUSY# pin is driven by the 80287 numeric processor
extension.
<H2>Flags Affected</H2>
None
<H2>Protected Mode Exceptions</H2>
#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)
<H2>Real Address Mode Exceptions</H2>
Same exceptions as in Protected Mode
<H2>Virtual 8086 Mode Exceptions</H2>
Same exceptions as in Protected Mode
<P>
<HR>
<P>
<B>up:</B> <A HREF="c17.htm">
Chapter 17 -- 80386 Instruction Set</A><BR>
<B>prev:</B><A HREF="VERR.htm"> VERR Verify a Segment for Reading or Writing</A><BR>
<B>next:</B><A HREF="XCHG.htm"> XCHG Exchange Register/Memory with Register</A>
</BODY>