216 lines
8 KiB
XML
216 lines
8 KiB
XML
<?xml version="1.0" encoding="utf-8"?>
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<?xml-stylesheet type="text/xsl" encoding="UTF-8" href="iform.xsl" version="1.0"?>
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<!DOCTYPE instructionsection PUBLIC "-//ARM//DTD instructionsection //EN" "iform-p.dtd">
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<!-- Copyright (c) 2010-2022 Arm Limited or its affiliates. All rights reserved. -->
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<!-- This document is Non-Confidential. This document may only be used and distributed in accordance with the terms of the agreement entered into by Arm and the party that Arm delivered this document to. -->
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<instructionsection id="SETPAN" title="SETPAN -- AArch32" type="instruction">
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<docvars>
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<docvar key="instr-class" value="general" />
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<docvar key="mnemonic" value="SETPAN" />
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</docvars>
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<heading>SETPAN</heading>
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<desc>
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<brief>
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<para>Set Privileged Access Never</para>
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</brief>
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<authored>
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<para>Set Privileged Access Never writes a new value to <xref linkend="BEIDIGBH">PSTATE</xref>.PAN.</para>
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<para>This instruction is available only in privileged mode and it is a NOP when executed in User mode.</para>
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</authored>
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</desc>
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<alias_list howmany="0"></alias_list>
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<classes>
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<classesintro count="2">
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<txt>It has encodings from the following instruction sets:</txt>
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<txt> A32 (</txt>
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<a href="#iclass_a1">A1</a>
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<txt>)</txt>
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<txt> and </txt>
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<txt> T32 (</txt>
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<a href="#iclass_t1">T1</a>
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<txt>)</txt>
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<txt>.</txt>
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</classesintro>
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<iclass name="A1" oneof="2" id="iclass_a1" no_encodings="1" isa="A32">
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<docvars>
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<docvar key="armarmheading" value="A1" />
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<docvar key="instr-class" value="general" />
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<docvar key="isa" value="A32" />
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<docvar key="mnemonic" value="SETPAN" />
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</docvars>
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<iclassintro count="1"></iclassintro>
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<arch_variants>
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<arch_variant name="ARMv8.1" feature="FEAT_PAN" />
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</arch_variants>
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<regdiagram form="32" psname="aarch32/instrs/SETPAN/A1_A.txt">
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<box hibit="31" width="12" settings="12">
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<c>1</c>
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<c>1</c>
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<c>1</c>
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<c>1</c>
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<c>0</c>
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<c>0</c>
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<c>0</c>
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<c>1</c>
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<c>0</c>
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<c>0</c>
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<c>0</c>
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<c>1</c>
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</box>
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<box hibit="19" settings="1">
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<c>(0)</c>
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</box>
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<box hibit="18" settings="1">
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<c>(0)</c>
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</box>
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<box hibit="17" settings="1">
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<c>(0)</c>
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</box>
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<box hibit="16" settings="1">
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<c>(0)</c>
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</box>
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<box hibit="15" settings="1">
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<c>(0)</c>
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</box>
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<box hibit="14" settings="1">
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<c>(0)</c>
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</box>
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<box hibit="13" settings="1">
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<c>(0)</c>
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</box>
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<box hibit="12" settings="1">
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<c>(0)</c>
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</box>
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<box hibit="11" settings="1">
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<c>(0)</c>
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</box>
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<box hibit="10" settings="1">
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<c>(0)</c>
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</box>
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<box hibit="9" name="imm1" usename="1">
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<c></c>
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</box>
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<box hibit="8" settings="1">
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<c>(0)</c>
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</box>
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<box hibit="7" width="4" settings="4">
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<c>0</c>
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<c>0</c>
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<c>0</c>
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<c>0</c>
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</box>
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<box hibit="3" settings="1">
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<c>(0)</c>
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</box>
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<box hibit="2" settings="1">
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<c>(0)</c>
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</box>
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<box hibit="1" settings="1">
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<c>(0)</c>
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</box>
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<box hibit="0" settings="1">
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<c>(0)</c>
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</box>
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</regdiagram>
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<encoding name="SETPAN_A1" oneofinclass="1" oneof="2" label="A1">
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<docvars>
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<docvar key="armarmheading" value="A1" />
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<docvar key="instr-class" value="general" />
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<docvar key="isa" value="A32" />
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<docvar key="mnemonic" value="SETPAN" />
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</docvars>
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<asmtemplate comment="Cannot be conditional"><text>SETPAN</text><text>{</text><a link="sa_q" hover="See {xref{ARMARM_Babbefhf}{Standard assembler syntax fields}}"><q></a><text>}</text><text> #</text><a link="sa_imm" hover="Unsigned immediate 0 or 1 (field "imm1")"><imm></a></asmtemplate>
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</encoding>
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<ps_section howmany="1">
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<ps name="aarch32/instrs/SETPAN/A1_A.txt" mylink="aarch32.instrs.SETPAN.A1_A.txt" enclabels="" sections="1" secttype="noheading">
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<pstext mayhavelinks="1" section="Decode" rep_section="decode">if !<a link="impl-shared.HavePANExt.0" file="shared_pseudocode.xml" hover="function: boolean HavePANExt()">HavePANExt</a>() then UNDEFINED;
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value = imm1;</pstext>
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</ps>
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</ps_section>
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</iclass>
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<iclass name="T1" oneof="2" id="iclass_t1" no_encodings="1" isa="T32">
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<docvars>
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<docvar key="armarmheading" value="T1" />
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<docvar key="instr-class" value="general" />
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<docvar key="isa" value="T32" />
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<docvar key="mnemonic" value="SETPAN" />
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</docvars>
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<iclassintro count="1"></iclassintro>
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<arch_variants>
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<arch_variant name="ARMv8.1" feature="FEAT_PAN" />
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</arch_variants>
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<regdiagram form="16" psname="aarch32/instrs/SETPAN/T1_A.txt">
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<box hibit="31" width="11" settings="11">
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<c>1</c>
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<c>0</c>
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<c>1</c>
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<c>1</c>
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<c>0</c>
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<c>1</c>
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<c>1</c>
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<c>0</c>
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<c>0</c>
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<c>0</c>
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<c>0</c>
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</box>
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<box hibit="20" settings="1">
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<c>(1)</c>
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</box>
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<box hibit="19" name="imm1" usename="1">
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<c></c>
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</box>
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<box hibit="18" settings="1">
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<c>(0)</c>
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</box>
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<box hibit="17" settings="1">
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<c>(0)</c>
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</box>
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<box hibit="16" settings="1">
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<c>(0)</c>
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</box>
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</regdiagram>
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<encoding name="SETPAN_T1" oneofinclass="1" oneof="2" label="T1">
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<docvars>
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<docvar key="armarmheading" value="T1" />
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<docvar key="instr-class" value="general" />
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<docvar key="isa" value="T32" />
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<docvar key="mnemonic" value="SETPAN" />
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</docvars>
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<asmtemplate comment="Not permitted in IT block"><text>SETPAN</text><text>{</text><a link="sa_q" hover="See {xref{ARMARM_Babbefhf}{Standard assembler syntax fields}}"><q></a><text>}</text><text> #</text><a link="sa_imm" hover="Unsigned immediate 0 or 1 (field "imm1")"><imm></a></asmtemplate>
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</encoding>
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<ps_section howmany="1">
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<ps name="aarch32/instrs/SETPAN/T1_A.txt" mylink="aarch32.instrs.SETPAN.T1_A.txt" enclabels="" sections="1" secttype="noheading">
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<pstext mayhavelinks="1" section="Decode" rep_section="decode">if <a link="impl-aarch32.InITBlock.0" file="shared_pseudocode.xml" hover="function: boolean InITBlock()">InITBlock</a>() then UNPREDICTABLE;
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if !<a link="impl-shared.HavePANExt.0" file="shared_pseudocode.xml" hover="function: boolean HavePANExt()">HavePANExt</a>() then UNDEFINED;
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value = imm1;</pstext>
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</ps>
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</ps_section>
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</iclass>
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</classes>
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<explanations scope="all">
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<explanation enclist="SETPAN_A1, SETPAN_T1" symboldefcount="1">
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<symbol link="sa_q"><q></symbol>
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<account encodedin="">
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<intro>
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<para>See <xref linkend="Babbefhf">Standard assembler syntax fields</xref>.</para>
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</intro>
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</account>
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</explanation>
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<explanation enclist="SETPAN_A1, SETPAN_T1" symboldefcount="1">
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<symbol link="sa_imm"><imm></symbol>
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<account encodedin="imm1">
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<intro>
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<para>Is the unsigned immediate 0 or 1, encoded in the "imm1" field.</para>
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</intro>
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</account>
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</explanation>
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</explanations>
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<ps_section howmany="1">
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<ps name="aarch32/instrs/SETPAN/Op_A.txt" mylink="execute" enclabels="" sections="1" secttype="Operation">
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<pstext mayhavelinks="1" section="Execute" rep_section="execute">EncodingSpecificOperations();
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if PSTATE.EL != <a link="EL0" file="shared_pseudocode.xml" hover="constant bits(2) EL0 = '00'">EL0</a> then
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PSTATE.PAN = value;</pstext>
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</ps>
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</ps_section>
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</instructionsection>
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