mirror of
https://github.com/pound-emu/ballistic.git
synced 2026-01-31 01:15:21 +01:00
136 lines
6.7 KiB
XML
136 lines
6.7 KiB
XML
<?xml version="1.0" encoding="utf-8"?>
|
|
<?xml-stylesheet type="text/xsl" encoding="UTF-8" href="iform.xsl" version="1.0"?>
|
|
<!DOCTYPE instructionsection PUBLIC "-//ARM//DTD instructionsection //EN" "iform-p.dtd">
|
|
<!-- Copyright (c) 2010-2022 Arm Limited or its affiliates. All rights reserved. -->
|
|
<!-- 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. -->
|
|
|
|
<instructionsection id="sqcvtu_z_mz2" title="SQCVTU (two registers)" type="instruction">
|
|
<docvars>
|
|
<docvar key="instr-class" value="mortlach2" />
|
|
<docvar key="isa" value="A64" />
|
|
<docvar key="mnemonic" value="SQCVTU" />
|
|
</docvars>
|
|
<heading>SQCVTU (two registers)</heading>
|
|
<desc>
|
|
<brief>Multi-vector signed saturating unsigned extract narrow</brief>
|
|
<description>
|
|
<para>Saturate the signed integer value in each element of the two source vectors to unsigned integer value that is half the orginal source element width, and place the results in the half-width destination elements.</para>
|
|
<para>This instruction is unpredicated.</para>
|
|
</description>
|
|
<status>Green</status>
|
|
<predicated>False</predicated>
|
|
<sm_policy>SM_1_only</sm_policy>
|
|
</desc>
|
|
<alias_list howmany="0"></alias_list>
|
|
<classes>
|
|
<iclass name="SME2" oneof="1" id="iclass_mortlach2" no_encodings="1" isa="A64">
|
|
<docvars>
|
|
<docvar key="instr-class" value="mortlach2" />
|
|
<docvar key="isa" value="A64" />
|
|
<docvar key="mnemonic" value="SQCVTU" />
|
|
</docvars>
|
|
<iclassintro count="1"></iclassintro>
|
|
<arch_variants>
|
|
<arch_variant name="FEAT_SME2" feature="FEAT_SME2" />
|
|
</arch_variants>
|
|
<regdiagram form="32" psname="SQCVTU-Z.MZ2-_" tworows="1">
|
|
<box hibit="31" width="9" settings="9">
|
|
<c>1</c>
|
|
<c>1</c>
|
|
<c>0</c>
|
|
<c>0</c>
|
|
<c>0</c>
|
|
<c>0</c>
|
|
<c>0</c>
|
|
<c>1</c>
|
|
<c>0</c>
|
|
</box>
|
|
<box hibit="22" name="op" settings="1">
|
|
<c>1</c>
|
|
</box>
|
|
<box hibit="21" width="12" settings="12">
|
|
<c>1</c>
|
|
<c>0</c>
|
|
<c>0</c>
|
|
<c>0</c>
|
|
<c>1</c>
|
|
<c>1</c>
|
|
<c>1</c>
|
|
<c>1</c>
|
|
<c>1</c>
|
|
<c>0</c>
|
|
<c>0</c>
|
|
<c>0</c>
|
|
</box>
|
|
<box hibit="9" width="4" name="Zn" usename="1">
|
|
<c colspan="4"></c>
|
|
</box>
|
|
<box hibit="5" name="U" usename="1" settings="1">
|
|
<c>0</c>
|
|
</box>
|
|
<box hibit="4" width="5" name="Zd" usename="1">
|
|
<c colspan="5"></c>
|
|
</box>
|
|
</regdiagram>
|
|
<encoding name="sqcvtu_z_mz2_" oneofinclass="1" oneof="1" label="">
|
|
<docvars>
|
|
<docvar key="instr-class" value="mortlach2" />
|
|
<docvar key="isa" value="A64" />
|
|
<docvar key="mnemonic" value="SQCVTU" />
|
|
</docvars>
|
|
<asmtemplate><text>SQCVTU </text><a link="sa_zd" hover="Destination scalable vector register (field "Zd")"><Zd></a><text>.H, </text><text>{</text><text> </text><a link="sa_zn1" hover="First scalable vector register of a multi-vector sequence (field Zn)"><Zn1></a><text>.S-</text><a link="sa_zn2" hover="Second scalable vector register of a multi-vector sequence (field Zn)"><Zn2></a><text>.S </text><text>}</text></asmtemplate>
|
|
</encoding>
|
|
<ps_section howmany="1">
|
|
<ps name="SQCVTU-Z.MZ2-_" mylink="SQCVTU-Z.MZ2-_" enclabels="" sections="1" secttype="noheading">
|
|
<pstext mayhavelinks="1" section="Decode" rep_section="decode">if !<a link="impl-aarch64.HaveSME2.0" file="shared_pseudocode.xml" hover="function: boolean HaveSME2()">HaveSME2</a>() then UNDEFINED;
|
|
constant integer esize = 16;
|
|
integer n = <a link="impl-shared.UInt.1" file="shared_pseudocode.xml" hover="function: integer UInt(bits(N) x)">UInt</a>(Zn:'0');
|
|
integer d = <a link="impl-shared.UInt.1" file="shared_pseudocode.xml" hover="function: integer UInt(bits(N) x)">UInt</a>(Zd);</pstext>
|
|
</ps>
|
|
</ps_section>
|
|
</iclass>
|
|
</classes>
|
|
<explanations scope="all">
|
|
<explanation enclist="sqcvtu_z_mz2_" symboldefcount="1">
|
|
<symbol link="sa_zd"><Zd></symbol>
|
|
<account encodedin="Zd">
|
|
<intro>
|
|
<para>Is the name of the destination scalable vector register, encoded in the "Zd" field.</para>
|
|
</intro>
|
|
</account>
|
|
</explanation>
|
|
<explanation enclist="sqcvtu_z_mz2_" symboldefcount="1">
|
|
<symbol link="sa_zn1"><Zn1></symbol>
|
|
<account encodedin="Zn">
|
|
<intro>
|
|
<para>Is the name of the first scalable vector register of a multi-vector sequence, encoded as "Zn" times 2.</para>
|
|
</intro>
|
|
</account>
|
|
</explanation>
|
|
<explanation enclist="sqcvtu_z_mz2_" symboldefcount="1">
|
|
<symbol link="sa_zn2"><Zn2></symbol>
|
|
<account encodedin="Zn">
|
|
<intro>
|
|
<para>Is the name of the second scalable vector register of a multi-vector sequence, encoded as "Zn" times 2 plus 1.</para>
|
|
</intro>
|
|
</account>
|
|
</explanation>
|
|
</explanations>
|
|
<ps_section howmany="1">
|
|
<ps name="SQCVTU-Z.MZ2-_" mylink="execute" enclabels="" sections="1" secttype="Operation">
|
|
<pstext mayhavelinks="1" section="Execute" rep_section="execute"><a link="impl-aarch64.CheckStreamingSVEEnabled.0" file="shared_pseudocode.xml" hover="function: CheckStreamingSVEEnabled()">CheckStreamingSVEEnabled</a>();
|
|
constant integer VL = <a link="impl-aarch64.CurrentVL.read.none" file="shared_pseudocode.xml" hover="accessor: integer CurrentVL">CurrentVL</a>;
|
|
constant integer elements = VL DIV (2 * esize);
|
|
bits(VL) result;
|
|
|
|
for r = 0 to 1
|
|
bits(VL) operand = <a link="impl-aarch64.Z.read.2" file="shared_pseudocode.xml" hover="accessor: bits(width) Z[integer n, integer width]">Z</a>[n+r, VL];
|
|
for e = 0 to elements-1
|
|
integer element = <a link="impl-shared.SInt.1" file="shared_pseudocode.xml" hover="function: integer SInt(bits(N) x)">SInt</a>(<a link="impl-shared.Elem.read.3" file="shared_pseudocode.xml" hover="accessor: bits(size) Elem[bits(N) vector, integer e, integer size]">Elem</a>[operand, e, 2 * esize]);
|
|
<a link="impl-shared.Elem.write.3" file="shared_pseudocode.xml" hover="accessor: Elem[bits(N) &vector, integer e, integer size] = bits(size) value">Elem</a>[result, r*elements + e, esize] = <a link="impl-aarch32.UnsignedSat.2" file="shared_pseudocode.xml" hover="function: bits(N) UnsignedSat(integer i, integer N)">UnsignedSat</a>(element, esize);
|
|
|
|
<a link="impl-aarch64.Z.write.2" file="shared_pseudocode.xml" hover="accessor: Z[integer n, integer width] = bits(width) value">Z</a>[d, VL] = result;</pstext>
|
|
</ps>
|
|
</ps_section>
|
|
</instructionsection>
|