mirror of
https://github.com/pound-emu/ballistic.git
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218 lines
8.4 KiB
XML
218 lines
8.4 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="XPAC" title="XPACD, XPACI, XPACLRI -- A64" type="instruction">
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<docvars>
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<docvar key="isa" value="A64" />
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</docvars>
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<heading>XPACD, XPACI, XPACLRI</heading>
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<desc>
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<brief>
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<para>Strip Pointer Authentication Code</para>
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</brief>
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<authored>
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<para>Strip Pointer Authentication Code. This instruction removes the pointer authentication code from an address. The address is in the specified general-purpose register for <instruction>XPACI</instruction> and <instruction>XPACD</instruction>, and is in LR for <instruction>XPACLRI</instruction>.</para>
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<para>The <instruction>XPACD</instruction> instruction is used for data addresses, and <instruction>XPACI</instruction> and <instruction>XPACLRI</instruction> are used for instruction addresses.</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 2 classes:</txt>
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<a href="#iclass_general">Integer</a>
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<txt> and </txt>
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<a href="#iclass_system">System</a>
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</classesintro>
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<iclass name="Integer" oneof="2" id="iclass_general" no_encodings="2" isa="A64">
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<docvars>
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<docvar key="instr-class" value="general" />
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<docvar key="isa" value="A64" />
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</docvars>
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<iclassintro count="2"></iclassintro>
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<arch_variants>
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<arch_variant name="ARMv8.3" feature="FEAT_PAuth" />
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</arch_variants>
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<regdiagram form="32" psname="aarch64/instrs/integer/pac/strip/dp_1src" tworows="1">
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<box hibit="31" name="sf" settings="1">
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<c>1</c>
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</box>
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<box hibit="30" settings="1">
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<c>1</c>
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</box>
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<box hibit="29" name="S" settings="1">
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<c>0</c>
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</box>
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<box hibit="28" width="8" settings="8">
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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>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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</box>
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<box hibit="20" width="5" name="opcode2" settings="5">
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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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<c>1</c>
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</box>
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<box hibit="15" name="opcode[5]" settings="1">
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<c>0</c>
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</box>
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<box hibit="14" name="opcode[4]" settings="1">
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<c>1</c>
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</box>
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<box hibit="13" width="3" name="opcode[3:1]" settings="3">
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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="10" name="D" usename="1">
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<c></c>
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</box>
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<box hibit="9" width="5" name="Rn" usename="1" settings="5" psbits="xxxxx">
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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>1</c>
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</box>
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<box hibit="4" width="5" name="Rd" usename="1">
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<c colspan="5"></c>
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</box>
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</regdiagram>
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<encoding name="XPACD_64Z_dp_1src" oneofinclass="2" oneof="3" label="XPACD" bitdiffs="D == 1">
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<docvars>
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<docvar key="instr-class" value="general" />
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<docvar key="isa" value="A64" />
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<docvar key="mnemonic" value="XPACD" />
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</docvars>
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<box hibit="10" width="1" name="D">
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<c>1</c>
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</box>
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<asmtemplate><text>XPACD </text><a link="sa_xd" hover="64-bit general-purpose destination register (field "Rd")"><Xd></a></asmtemplate>
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</encoding>
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<encoding name="XPACI_64Z_dp_1src" oneofinclass="2" oneof="3" label="XPACI" bitdiffs="D == 0">
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<docvars>
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<docvar key="instr-class" value="general" />
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<docvar key="isa" value="A64" />
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<docvar key="mnemonic" value="XPACI" />
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</docvars>
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<box hibit="10" width="1" name="D">
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<c>0</c>
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</box>
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<asmtemplate><text>XPACI </text><a link="sa_xd" hover="64-bit general-purpose destination register (field "Rd")"><Xd></a></asmtemplate>
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</encoding>
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<ps_section howmany="1">
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<ps name="aarch64/instrs/integer/pac/strip/dp_1src" mylink="aarch64.instrs.integer.pac.strip.dp_1src" enclabels="" sections="1" secttype="noheading">
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<pstext mayhavelinks="1" section="Decode" rep_section="decode">boolean data = (D == '1');
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integer d = <a link="impl-shared.UInt.1" file="shared_pseudocode.xml" hover="function: integer UInt(bits(N) x)">UInt</a>(Rd);
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integer n = <a link="impl-shared.UInt.1" file="shared_pseudocode.xml" hover="function: integer UInt(bits(N) x)">UInt</a>(Rn);
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if !<a link="impl-aarch64.HavePACExt.0" file="shared_pseudocode.xml" hover="function: boolean HavePACExt()">HavePACExt</a>() then
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UNDEFINED;
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if n != 31 then UNDEFINED;</pstext>
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</ps>
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</ps_section>
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</iclass>
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<iclass name="System" oneof="2" id="iclass_system" no_encodings="1" isa="A64">
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<docvars>
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<docvar key="instr-class" value="system" />
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<docvar key="isa" value="A64" />
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<docvar key="mnemonic" value="XPACLRI" />
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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="ARMv8.3" feature="FEAT_PAuth" />
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</arch_variants>
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<regdiagram form="32" psname="aarch64/instrs/integer/pac/strip/hint">
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<box hibit="31" width="10" settings="10">
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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>0</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>0</c>
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<c>0</c>
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</box>
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<box hibit="21" name="L" settings="1">
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<c>0</c>
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</box>
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<box hibit="20" width="2" name="op0" settings="2">
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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="18" width="3" name="op1" settings="3">
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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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</box>
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<box hibit="15" width="4" name="CRn" settings="4">
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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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</box>
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<box hibit="11" width="4" name="CRm" 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="7" width="3" name="op2" settings="3">
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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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</box>
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<box hibit="4" width="5" name="Rt" settings="5">
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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>1</c>
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</box>
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</regdiagram>
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<encoding name="XPACLRI_HI_hints" oneofinclass="1" oneof="3" label="">
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<docvars>
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<docvar key="instr-class" value="system" />
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<docvar key="isa" value="A64" />
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<docvar key="mnemonic" value="XPACLRI" />
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</docvars>
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<asmtemplate><text>XPACLRI</text></asmtemplate>
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</encoding>
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<ps_section howmany="1">
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<ps name="aarch64/instrs/integer/pac/strip/hint" mylink="aarch64.instrs.integer.pac.strip.hint" enclabels="" sections="1" secttype="noheading">
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<pstext mayhavelinks="1" section="Decode" rep_section="decode">integer d = 30;
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boolean data = FALSE;</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="XPACI_64Z_dp_1src, XPACD_64Z_dp_1src" symboldefcount="1">
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<symbol link="sa_xd"><Xd></symbol>
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<account encodedin="Rd">
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<intro>
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<para>Is the 64-bit name of the general-purpose destination register, encoded in the "Rd" 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="aarch64/instrs/integer/pac/strip/dp_1src" mylink="execute" enclabels="" sections="1" secttype="Operation">
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<pstext mayhavelinks="1" section="Execute" rep_section="execute">if <a link="impl-aarch64.HavePACExt.0" file="shared_pseudocode.xml" hover="function: boolean HavePACExt()">HavePACExt</a>() then
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<a link="impl-aarch64.X.write.2" file="shared_pseudocode.xml" hover="accessor: X[integer n, integer width] = bits(width) value">X</a>[d, 64] = Strip(X[d, 64], data);</pstext>
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</ps>
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</ps_section>
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</instructionsection>
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