334 lines
19 KiB
XML
334 lines
19 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="VEXT_VEXT" title="VEXT (multibyte elements) -- AArch32" type="alias">
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<docvars>
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<docvar key="alias_mnemonic" value="VEXT" />
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<docvar key="instr-class" value="fpsimd" />
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<docvar key="mnemonic" value="VEXT" />
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</docvars>
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<heading>VEXT (multibyte elements)</heading>
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<desc>
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<brief>Vector Extract</brief>
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<longer> extracts elements from the bottom end of the second operand vector and the top end of the first, concatenates them and places the result in the destination vector</longer>
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</desc>
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<aliasto refiform="vext.xml" iformid="VEXT">VEXT (byte elements)</aliasto>
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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="2" 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="fpsimd" />
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<docvar key="isa" value="A32" />
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<docvar key="mnemonic" value="VEXT" />
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</docvars>
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<iclassintro count="2"></iclassintro>
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<regdiagram form="32" psname="">
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<box hibit="31" width="9" settings="9">
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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>1</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="22" name="D" usename="1">
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<c></c>
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</box>
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<box hibit="21" width="2" settings="2">
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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="19" width="4" name="Vn" usename="1">
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<c colspan="4"></c>
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</box>
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<box hibit="15" width="4" name="Vd" usename="1">
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<c colspan="4"></c>
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</box>
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<box hibit="11" width="4" name="imm4" usename="1">
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<c colspan="4"></c>
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</box>
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<box hibit="7" name="N" usename="1">
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<c></c>
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</box>
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<box hibit="6" name="Q" usename="1">
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<c></c>
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</box>
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<box hibit="5" name="M" usename="1">
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<c></c>
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</box>
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<box hibit="4" settings="1">
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<c>0</c>
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</box>
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<box hibit="3" width="4" name="Vm" usename="1">
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<c colspan="4"></c>
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</box>
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</regdiagram>
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<encoding name="VEXT_VEXT_A1_D" oneofinclass="2" oneof="4" label="64-bit SIMD vector" bitdiffs="Q == 0">
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<docvars>
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<docvar key="alias_mnemonic" value="VEXT" />
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<docvar key="armarmheading" value="A1" />
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<docvar key="instr-class" value="fpsimd" />
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<docvar key="isa" value="A32" />
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<docvar key="mnemonic" value="VEXT" />
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<docvar key="simdvectorsize" value="double" />
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</docvars>
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<box hibit="6" width="1" name="Q">
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<c>0</c>
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</box>
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<asmtemplate><text>VEXT</text><text>{</text><a link="sa_c_1" hover="See {xref{ARMARM_Babbefhf}{Standard assembler syntax fields}}"><c></a><text>}</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_size_1" hover="Size of operation, and can be one of 16 or 32"><size></a><text> </text><text>{</text><a link="sa_dd" hover="64-bit SIMD&FP destination register (field "D:Vd")"><Dd></a><text>,</text><text>}</text><text> </text><a link="sa_dn" hover="First 64-bit SIMD&FP source register (field "N:Vn")"><Dn></a><text>, </text><a link="sa_dm" hover="Second 64-bit SIMD&FP source register (field "M:Vm")"><Dm></a><text>, #</text><a link="sa_imm_3" hover="Location of extracted result in the concatenation of the operands"><imm></a></asmtemplate>
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<equivalent_to>
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<asmtemplate><a href="vext.xml#VEXT_A1_D">VEXT</a><text>{</text><a link="sa_c_1" hover="See {xref{ARMARM_Babbefhf}{Standard assembler syntax fields}}"><c></a><text>}</text><text>{</text><a link="sa_q" hover="See {xref{ARMARM_Babbefhf}{Standard assembler syntax fields}}"><q></a><text>}</text><text>.8 </text><text>{</text><a link="sa_dd" hover="64-bit SIMD&FP destination register (field "D:Vd")"><Dd></a><text>,</text><text>}</text><text> </text><a link="sa_dn" hover="First 64-bit SIMD&FP source register (field "N:Vn")"><Dn></a><text>, </text><a link="sa_dm" hover="Second 64-bit SIMD&FP source register (field "M:Vm")"><Dm></a><text>, #</text><a><imm*(size/8)></a></asmtemplate>
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<aliascond>Never</aliascond>
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</equivalent_to>
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</encoding>
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<encoding name="VEXT_VEXT_A1_Q" oneofinclass="2" oneof="4" label="128-bit SIMD vector" bitdiffs="Q == 1">
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<docvars>
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<docvar key="alias_mnemonic" value="VEXT" />
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<docvar key="armarmheading" value="A1" />
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<docvar key="instr-class" value="fpsimd" />
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<docvar key="isa" value="A32" />
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<docvar key="mnemonic" value="VEXT" />
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<docvar key="simdvectorsize" value="quad" />
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</docvars>
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<box hibit="6" width="1" name="Q">
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<c>1</c>
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</box>
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<asmtemplate><text>VEXT</text><text>{</text><a link="sa_c_1" hover="See {xref{ARMARM_Babbefhf}{Standard assembler syntax fields}}"><c></a><text>}</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_size" hover="Size of operation, and can be one of 16, 32 or 64"><size></a><text> </text><text>{</text><a link="sa_qd" hover="128-bit SIMD&FP destination register (field "D:Vd")"><Qd></a><text>,</text><text>}</text><text> </text><a link="sa_qn" hover="First 128-bit SIMD&FP source register (field "N:Vn")"><Qn></a><text>, </text><a link="sa_qm" hover="Second 128-bit SIMD&FP source register (field "M:Vm")"><Qm></a><text>, #</text><a link="sa_imm_2" hover="Location of extracted result in the concatenation of the operands"><imm></a></asmtemplate>
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<equivalent_to>
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<asmtemplate><a href="vext.xml#VEXT_A1_Q">VEXT</a><text>{</text><a link="sa_c_1" hover="See {xref{ARMARM_Babbefhf}{Standard assembler syntax fields}}"><c></a><text>}</text><text>{</text><a link="sa_q" hover="See {xref{ARMARM_Babbefhf}{Standard assembler syntax fields}}"><q></a><text>}</text><text>.8 </text><text>{</text><a link="sa_qd" hover="128-bit SIMD&FP destination register (field "D:Vd")"><Qd></a><text>,</text><text>}</text><text> </text><a link="sa_qn" hover="First 128-bit SIMD&FP source register (field "N:Vn")"><Qn></a><text>, </text><a link="sa_qm" hover="Second 128-bit SIMD&FP source register (field "M:Vm")"><Qm></a><text>, #</text><a><imm*(size/8)></a></asmtemplate>
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<aliascond>Never</aliascond>
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</equivalent_to>
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</encoding>
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</iclass>
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<iclass name="T1" oneof="2" id="iclass_t1" no_encodings="2" 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="fpsimd" />
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<docvar key="isa" value="T32" />
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<docvar key="mnemonic" value="VEXT" />
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</docvars>
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<iclassintro count="2"></iclassintro>
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<regdiagram form="16x2" psname="">
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<box hibit="31" width="9" settings="9">
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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>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="22" name="D" usename="1">
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<c></c>
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</box>
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<box hibit="21" width="2" settings="2">
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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="19" width="4" name="Vn" usename="1">
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<c colspan="4"></c>
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</box>
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<box hibit="15" width="4" name="Vd" usename="1">
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<c colspan="4"></c>
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</box>
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<box hibit="11" width="4" name="imm4" usename="1">
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<c colspan="4"></c>
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</box>
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<box hibit="7" name="N" usename="1">
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<c></c>
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</box>
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<box hibit="6" name="Q" usename="1">
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<c></c>
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</box>
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<box hibit="5" name="M" usename="1">
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<c></c>
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</box>
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<box hibit="4" settings="1">
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<c>0</c>
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</box>
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<box hibit="3" width="4" name="Vm" usename="1">
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<c colspan="4"></c>
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</box>
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</regdiagram>
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<encoding name="VEXT_VEXT_T1_D" oneofinclass="2" oneof="4" label="64-bit SIMD vector" bitdiffs="Q == 0">
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<docvars>
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<docvar key="alias_mnemonic" value="VEXT" />
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<docvar key="armarmheading" value="T1" />
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<docvar key="instr-class" value="fpsimd" />
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<docvar key="isa" value="T32" />
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<docvar key="mnemonic" value="VEXT" />
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<docvar key="simdvectorsize" value="double" />
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</docvars>
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<box hibit="6" width="1" name="Q">
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<c>0</c>
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</box>
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<asmtemplate><text>VEXT</text><text>{</text><a link="sa_c" hover="See {xref{ARMARM_Babbefhf}{Standard assembler syntax fields}}"><c></a><text>}</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_size_1" hover="Size of operation, and can be one of 16 or 32"><size></a><text> </text><text>{</text><a link="sa_dd" hover="64-bit SIMD&FP destination register (field "D:Vd")"><Dd></a><text>,</text><text>}</text><text> </text><a link="sa_dn" hover="First 64-bit SIMD&FP source register (field "N:Vn")"><Dn></a><text>, </text><a link="sa_dm" hover="Second 64-bit SIMD&FP source register (field "M:Vm")"><Dm></a><text>, #</text><a link="sa_imm_3" hover="Location of extracted result in the concatenation of the operands"><imm></a></asmtemplate>
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<equivalent_to>
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<asmtemplate><a href="vext.xml#VEXT_T1_D">VEXT</a><text>{</text><a link="sa_c" hover="See {xref{ARMARM_Babbefhf}{Standard assembler syntax fields}}"><c></a><text>}</text><text>{</text><a link="sa_q" hover="See {xref{ARMARM_Babbefhf}{Standard assembler syntax fields}}"><q></a><text>}</text><text>.8 </text><text>{</text><a link="sa_dd" hover="64-bit SIMD&FP destination register (field "D:Vd")"><Dd></a><text>,</text><text>}</text><text> </text><a link="sa_dn" hover="First 64-bit SIMD&FP source register (field "N:Vn")"><Dn></a><text>, </text><a link="sa_dm" hover="Second 64-bit SIMD&FP source register (field "M:Vm")"><Dm></a><text>, #</text><a><imm*(size/8)></a></asmtemplate>
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<aliascond>Never</aliascond>
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</equivalent_to>
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</encoding>
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<encoding name="VEXT_VEXT_T1_Q" oneofinclass="2" oneof="4" label="128-bit SIMD vector" bitdiffs="Q == 1">
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<docvars>
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<docvar key="alias_mnemonic" value="VEXT" />
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<docvar key="armarmheading" value="T1" />
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<docvar key="instr-class" value="fpsimd" />
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<docvar key="isa" value="T32" />
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<docvar key="mnemonic" value="VEXT" />
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<docvar key="simdvectorsize" value="quad" />
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</docvars>
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<box hibit="6" width="1" name="Q">
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<c>1</c>
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</box>
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<asmtemplate><text>VEXT</text><text>{</text><a link="sa_c" hover="See {xref{ARMARM_Babbefhf}{Standard assembler syntax fields}}"><c></a><text>}</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_size" hover="Size of operation, and can be one of 16, 32 or 64"><size></a><text> </text><text>{</text><a link="sa_qd" hover="128-bit SIMD&FP destination register (field "D:Vd")"><Qd></a><text>,</text><text>}</text><text> </text><a link="sa_qn" hover="First 128-bit SIMD&FP source register (field "N:Vn")"><Qn></a><text>, </text><a link="sa_qm" hover="Second 128-bit SIMD&FP source register (field "M:Vm")"><Qm></a><text>, #</text><a link="sa_imm_2" hover="Location of extracted result in the concatenation of the operands"><imm></a></asmtemplate>
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<equivalent_to>
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<asmtemplate><a href="vext.xml#VEXT_T1_Q">VEXT</a><text>{</text><a link="sa_c" hover="See {xref{ARMARM_Babbefhf}{Standard assembler syntax fields}}"><c></a><text>}</text><text>{</text><a link="sa_q" hover="See {xref{ARMARM_Babbefhf}{Standard assembler syntax fields}}"><q></a><text>}</text><text>.8 </text><text>{</text><a link="sa_qd" hover="128-bit SIMD&FP destination register (field "D:Vd")"><Qd></a><text>,</text><text>}</text><text> </text><a link="sa_qn" hover="First 128-bit SIMD&FP source register (field "N:Vn")"><Qn></a><text>, </text><a link="sa_qm" hover="Second 128-bit SIMD&FP source register (field "M:Vm")"><Qm></a><text>, #</text><a><imm*(size/8)></a></asmtemplate>
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<aliascond>Never</aliascond>
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</equivalent_to>
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</encoding>
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</iclass>
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</classes>
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<explanations scope="all">
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<explanation enclist="VEXT_VEXT_A1_Q" symboldefcount="1">
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<symbol link="sa_c_1"><c></symbol>
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<account encodedin="">
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<docvars>
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<docvar key="armarmheading" value="A1" />
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</docvars>
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<intro>
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<para>For encoding A1: see <xref linkend="Babbefhf">Standard assembler syntax fields</xref>. This encoding must be unconditional.</para>
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</intro>
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</account>
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</explanation>
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<explanation enclist="VEXT_VEXT_T1_Q" symboldefcount="2">
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<symbol link="sa_c"><c></symbol>
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<account encodedin="">
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<docvars>
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<docvar key="armarmheading" value="T1" />
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</docvars>
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<intro>
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<para>For encoding T1: 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="VEXT_VEXT_A1_Q, VEXT_VEXT_T1_Q" 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="VEXT_VEXT_A1_D, VEXT_VEXT_T1_D" symboldefcount="1">
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<symbol link="sa_size_1"><size></symbol>
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<account encodedin="">
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<docvars>
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<docvar key="simdvectorsize" value="double" />
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</docvars>
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<intro>
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<para>For the 64-bit SIMD vector variant: is the size of the operation, and can be one of 16 or 32.</para>
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</intro>
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</account>
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</explanation>
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<explanation enclist="VEXT_VEXT_A1_Q, VEXT_VEXT_T1_Q" symboldefcount="2">
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<symbol link="sa_size"><size></symbol>
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<account encodedin="">
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<docvars>
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<docvar key="simdvectorsize" value="quad" />
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</docvars>
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<intro>
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<para>For the 128-bit SIMD vector variant: is the size of the operation, and can be one of 16, 32 or 64.</para>
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</intro>
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</account>
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</explanation>
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<explanation enclist="VEXT_VEXT_A1_Q, VEXT_VEXT_T1_Q" symboldefcount="1">
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<symbol link="sa_qd"><Qd></symbol>
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<account encodedin="D:Vd">
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<intro>
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<para>Is the 128-bit name of the SIMD&FP destination register, encoded in the "D:Vd" field as <Qd>*2.</para>
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</intro>
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</account>
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</explanation>
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<explanation enclist="VEXT_VEXT_A1_Q, VEXT_VEXT_T1_Q" symboldefcount="1">
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<symbol link="sa_qn"><Qn></symbol>
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<account encodedin="N:Vn">
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<intro>
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<para>Is the 128-bit name of the first SIMD&FP source register, encoded in the "N:Vn" field as <Qn>*2.</para>
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</intro>
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</account>
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</explanation>
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<explanation enclist="VEXT_VEXT_A1_Q, VEXT_VEXT_T1_Q" symboldefcount="1">
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<symbol link="sa_qm"><Qm></symbol>
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<account encodedin="M:Vm">
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<intro>
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<para>Is the 128-bit name of the second SIMD&FP source register, encoded in the "M:Vm" field as <Qm>*2.</para>
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</intro>
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</account>
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</explanation>
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<explanation enclist="VEXT_VEXT_A1_D, VEXT_VEXT_T1_D" symboldefcount="1">
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<symbol link="sa_dd"><Dd></symbol>
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<account encodedin="D:Vd">
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<intro>
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<para>Is the 64-bit name of the SIMD&FP destination register, encoded in the "D:Vd" field.</para>
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</intro>
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</account>
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</explanation>
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<explanation enclist="VEXT_VEXT_A1_D, VEXT_VEXT_T1_D" symboldefcount="1">
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<symbol link="sa_dn"><Dn></symbol>
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<account encodedin="N:Vn">
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<intro>
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<para>Is the 64-bit name of the first SIMD&FP source register, encoded in the "N:Vn" field.</para>
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</intro>
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</account>
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</explanation>
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<explanation enclist="VEXT_VEXT_A1_D, VEXT_VEXT_T1_D" symboldefcount="1">
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<symbol link="sa_dm"><Dm></symbol>
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<account encodedin="M:Vm">
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<intro>
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<para>Is the 64-bit name of the second SIMD&FP source register, encoded in the "M:Vm" field.</para>
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</intro>
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</account>
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</explanation>
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<explanation enclist="VEXT_VEXT_A1_D, VEXT_VEXT_T1_D" symboldefcount="1">
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<symbol link="sa_imm_3"><imm></symbol>
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<account encodedin="">
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<docvars>
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<docvar key="simdvectorsize" value="double" />
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</docvars>
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<intro>
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<para>For the 64-bit SIMD vector variant: is the location of the extracted result in the concatenation of the operands, as a number of bytes from the least significant end, in the range 0 to (128/<syntax><size></syntax>)-1.</para>
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</intro>
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</account>
|
|
</explanation>
|
|
<explanation enclist="VEXT_VEXT_A1_Q, VEXT_VEXT_T1_Q" symboldefcount="2">
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|
<symbol link="sa_imm_2"><imm></symbol>
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|
<account encodedin="">
|
|
<docvars>
|
|
<docvar key="simdvectorsize" value="quad" />
|
|
</docvars>
|
|
<intro>
|
|
<para>For the 128-bit SIMD vector variant: is the location of the extracted result in the concatenation of the operands, as a number of bytes from the least significant end, in the range 0 to (64/<syntax><size></syntax>)-1.</para>
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|
</intro>
|
|
</account>
|
|
</explanation>
|
|
</explanations>
|
|
</instructionsection>
|