mirror of
https://github.com/pound-emu/ballistic.git
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166 lines
8.4 KiB
XML
166 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="MNEG_MSUB" title="MNEG -- A64" type="alias">
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<docvars>
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<docvar key="alias_mnemonic" value="MNEG" />
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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="MSUB" />
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</docvars>
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<heading>MNEG</heading>
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<desc>
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<brief>
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<para>Multiply-Negate</para>
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</brief>
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<authored>
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<para>Multiply-Negate multiplies two register values, negates the product, and writes the result to the destination register.</para>
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</authored>
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</desc>
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<operationalnotes>
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<para>If PSTATE.DIT is 1:</para>
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<list type="unordered">
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<listitem><content>The execution time of this instruction is independent of:<list type="unordered"><listitem><content>The values of the data supplied in any of its registers.</content></listitem><listitem><content>The values of the NZCV flags.</content></listitem></list></content></listitem>
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<listitem><content>The response of this instruction to asynchronous exceptions does not vary based on:<list type="unordered"><listitem><content>The values of the data supplied in any of its registers.</content></listitem><listitem><content>The values of the NZCV flags.</content></listitem></list></content></listitem>
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</list>
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</operationalnotes>
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<aliasto refiform="msub.xml" iformid="MSUB">MSUB</aliasto>
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<classes>
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<iclass name="Integer" oneof="1" 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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<docvar key="mnemonic" value="MSUB" />
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</docvars>
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<iclassintro count="2"></iclassintro>
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<regdiagram form="32" psname="aarch64/instrs/integer/arithmetic/mul/uniform/add-sub" tworows="1">
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<box hibit="31" name="sf" usename="1">
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<c></c>
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</box>
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<box hibit="30" width="2" name="op54" 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="28" width="5" settings="5">
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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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</box>
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<box hibit="23" width="3" name="op31" 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="20" width="5" name="Rm" usename="1">
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<c colspan="5"></c>
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</box>
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<box hibit="15" name="o0" usename="1" settings="1" psbits="x">
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<c>1</c>
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</box>
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<box hibit="14" width="5" name="Ra" 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="9" width="5" name="Rn" usename="1">
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<c colspan="5"></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="MNEG_MSUB_32A_dp_3src" oneofinclass="2" oneof="2" label="32-bit" bitdiffs="sf == 0">
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<docvars>
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<docvar key="alias_mnemonic" value="MNEG" />
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<docvar key="datatype" value="32" />
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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="MSUB" />
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</docvars>
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<box hibit="31" width="1" name="sf">
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<c>0</c>
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</box>
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<asmtemplate><text>MNEG </text><a link="sa_wd" hover="32-bit general-purpose destination register (field "Rd")"><Wd></a><text>, </text><a link="sa_wn" hover="First 32-bit general-purpose source register holding multiplicand (field "Rn")"><Wn></a><text>, </text><a link="sa_wm" hover="Second 32-bit general-purpose source register holding multiplier (field "Rm")"><Wm></a></asmtemplate>
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<equivalent_to>
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<asmtemplate><a href="msub.xml#MSUB_32A_dp_3src">MSUB</a><text> </text><a link="sa_wd" hover="32-bit general-purpose destination register (field "Rd")"><Wd></a><text>, </text><a link="sa_wn" hover="First 32-bit general-purpose source register holding multiplicand (field "Rn")"><Wn></a><text>, </text><a link="sa_wm" hover="Second 32-bit general-purpose source register holding multiplier (field "Rm")"><Wm></a><text>, WZR</text></asmtemplate>
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<aliascond>Unconditionally</aliascond>
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</equivalent_to>
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</encoding>
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<encoding name="MNEG_MSUB_64A_dp_3src" oneofinclass="2" oneof="2" label="64-bit" bitdiffs="sf == 1">
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<docvars>
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<docvar key="alias_mnemonic" value="MNEG" />
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<docvar key="datatype" value="64" />
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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="MSUB" />
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</docvars>
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<box hibit="31" width="1" name="sf">
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<c>1</c>
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</box>
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<asmtemplate><text>MNEG </text><a link="sa_xd" hover="64-bit general-purpose destination register (field "Rd")"><Xd></a><text>, </text><a link="sa_xn" hover="First 64-bit general-purpose source register holding multiplicand (field "Rn")"><Xn></a><text>, </text><a link="sa_xm" hover="Second 64-bit general-purpose source register holding multiplier (field "Rm")"><Xm></a></asmtemplate>
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<equivalent_to>
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<asmtemplate><a href="msub.xml#MSUB_64A_dp_3src">MSUB</a><text> </text><a link="sa_xd" hover="64-bit general-purpose destination register (field "Rd")"><Xd></a><text>, </text><a link="sa_xn" hover="First 64-bit general-purpose source register holding multiplicand (field "Rn")"><Xn></a><text>, </text><a link="sa_xm" hover="Second 64-bit general-purpose source register holding multiplier (field "Rm")"><Xm></a><text>, XZR</text></asmtemplate>
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<aliascond>Unconditionally</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="MNEG_MSUB_32A_dp_3src" symboldefcount="1">
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<symbol link="sa_wd"><Wd></symbol>
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<account encodedin="Rd">
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<intro>
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<para>Is the 32-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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<explanation enclist="MNEG_MSUB_32A_dp_3src" symboldefcount="1">
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<symbol link="sa_wn"><Wn></symbol>
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<account encodedin="Rn">
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<intro>
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<para>Is the 32-bit name of the first general-purpose source register holding the multiplicand, encoded in the "Rn" field.</para>
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</intro>
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</account>
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</explanation>
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<explanation enclist="MNEG_MSUB_32A_dp_3src" symboldefcount="1">
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<symbol link="sa_wm"><Wm></symbol>
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<account encodedin="Rm">
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<intro>
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<para>Is the 32-bit name of the second general-purpose source register holding the multiplier, encoded in the "Rm" field.</para>
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</intro>
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</account>
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</explanation>
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<explanation enclist="MNEG_MSUB_64A_dp_3src" 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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<explanation enclist="MNEG_MSUB_64A_dp_3src" symboldefcount="1">
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<symbol link="sa_xn"><Xn></symbol>
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<account encodedin="Rn">
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<intro>
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<para>Is the 64-bit name of the first general-purpose source register holding the multiplicand, encoded in the "Rn" field.</para>
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</intro>
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</account>
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</explanation>
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<explanation enclist="MNEG_MSUB_64A_dp_3src" symboldefcount="1">
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<symbol link="sa_xm"><Xm></symbol>
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<account encodedin="Rm">
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<intro>
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<para>Is the 64-bit name of the second general-purpose source register holding the multiplier, encoded in the "Rm" 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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</instructionsection>
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