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<!DOCTYPE HTML PUBLIC "-//IETF//DTD HTML 2.0//EN"><HTML><HEAD><TITLE>80386 Programmer's Reference Manual -- Opcode HLT</TITLE></HEAD><BODY><B>up:</B> <A HREF="c17.htm">Chapter 17 -- 80386 Instruction Set</A><BR><B>prev:</B><A HREF="ENTER.htm"> ENTER Make Stack Frame for Procedure Parameters</A><BR><B>next:</B><A HREF="IDIV.htm"> IDIV Signed Divide</A><P><HR><P><H1>HLT -- Halt</H1><PRE>Opcode Instruction Clocks DescriptionF4 HLT 5 Halt</PRE><H2>Operation</H2>Enter Halt state;<H2>Description</H2>HALT stops instruction execution and places the 80386 in a HALT state.An enabled interrupt, NMI, or a reset will resume execution. If aninterrupt (including NMI) is used to resume execution after HLT, the savedCS:IP (or CS:EIP) value points to the instruction following HLT.<H2>Flags Affected</H2>None<H2>Protected Mode Exceptions</H2>HLT is a privileged instruction; #GP(0) if the current privilege level isnot 0<H2>Real Address Mode Exceptions</H2>None<H2>Virtual 8086 Mode Exceptions</H2>#GP(0); HLT is a privileged instruction<P><HR><P><B>up:</B> <A HREF="c17.htm">Chapter 17 -- 80386 Instruction Set</A><BR><B>prev:</B><A HREF="ENTER.htm"> ENTER Make Stack Frame for Procedure Parameters</A><BR><B>next:</B><A HREF="IDIV.htm"> IDIV Signed Divide</A></BODY>⌨️ 快捷键说明
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