archived-ballistic/spec/arm64_xml/movt_r_zt.xml

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<instructionsection id="movt_r_zt" title="MOVT (ZT0 to scalar)" type="instruction">
  <docvars>
    <docvar key="instr-class" value="mortlach2" />
    <docvar key="isa" value="A64" />
    <docvar key="mnemonic" value="MOVT" />
  </docvars>
  <heading>MOVT (ZT0 to scalar)</heading>
  <desc>
    <brief>Move 8 bytes from ZT0 to general-purpose register</brief>
    <description>
      <para>Move 8 bytes to a general-purpose register from the ZT0 register at the byte offset specified by the immediate index. This instruction is UNDEFINED in Non-debug state.</para>
    </description>
    <status>Green</status>
    <predicated>False</predicated>
  </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="MOVT" />
      </docvars>
      <iclassintro count="1"></iclassintro>
      <arch_variants>
        <arch_variant name="FEAT_SME2" feature="FEAT_SME2" />
      </arch_variants>
      <regdiagram form="32" psname="MOVT-R.ZT-_">
        <box hibit="31" width="17" settings="17">
          <c>1</c>
          <c>1</c>
          <c>0</c>
          <c>0</c>
          <c>0</c>
          <c>0</c>
          <c>0</c>
          <c>0</c>
          <c>0</c>
          <c>1</c>
          <c>0</c>
          <c>0</c>
          <c>1</c>
          <c>1</c>
          <c>0</c>
          <c>0</c>
          <c>0</c>
        </box>
        <box hibit="14" width="3" name="off3" usename="1">
          <c colspan="3"></c>
        </box>
        <box hibit="11" width="2" name="opc&lt;6:5&gt;" settings="2">
          <c>0</c>
          <c>0</c>
        </box>
        <box hibit="9" width="4" name="opc&lt;4:1&gt;" settings="4">
          <c>1</c>
          <c>1</c>
          <c>1</c>
          <c>1</c>
        </box>
        <box hibit="5" name="opc&lt;0&gt;" settings="1">
          <c>1</c>
        </box>
        <box hibit="4" width="5" name="Rt" usename="1">
          <c colspan="5"></c>
        </box>
      </regdiagram>
      <encoding name="movt_r_zt_" oneofinclass="1" oneof="1" label="">
        <docvars>
          <docvar key="instr-class" value="mortlach2" />
          <docvar key="isa" value="A64" />
          <docvar key="mnemonic" value="MOVT" />
        </docvars>
        <asmtemplate><text>MOVT    </text><a link="sa_xt" hover="64-bit general-purpose register to be transferred (field &quot;Rt&quot;)">&lt;Xt&gt;</a><text>, ZT0[</text><a link="sa_offs" hover="Immediate byte offset, multiple of 8 in the range of 0 to 56 (field &quot;off3&quot;)">&lt;offs&gt;</a><text>]</text></asmtemplate>
      </encoding>
      <ps_section howmany="1">
        <ps name="MOVT-R.ZT-_" mylink="MOVT-R.ZT-_" 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>() || !<a link="impl-shared.Halted.0" file="shared_pseudocode.xml" hover="function: boolean Halted()">Halted</a>() then UNDEFINED;
integer t = <a link="impl-shared.UInt.1" file="shared_pseudocode.xml" hover="function: integer UInt(bits(N) x)">UInt</a>(Rt);
integer offset = <a link="impl-shared.UInt.1" file="shared_pseudocode.xml" hover="function: integer UInt(bits(N) x)">UInt</a>(off3);</pstext>
        </ps>
      </ps_section>
    </iclass>
  </classes>
  <explanations scope="all">
    <explanation enclist="movt_r_zt_" symboldefcount="1">
      <symbol link="sa_xt">&lt;Xt&gt;</symbol>
      <account encodedin="Rt">
        <intro>
          <para>Is the 64-bit name of the general-purpose register to be transferred, encoded in the "Rt" field.</para>
        </intro>
      </account>
    </explanation>
    <explanation enclist="movt_r_zt_" symboldefcount="1">
      <symbol link="sa_offs">&lt;offs&gt;</symbol>
      <account encodedin="off3">
        <intro>
          <para>Is the immediate byte offset, a multiple of 8 in the range of 0 to 56, encoded in the "off3" field as &lt;offs&gt;/8.</para>
        </intro>
      </account>
    </explanation>
  </explanations>
  <ps_section howmany="1">
    <ps name="MOVT-R.ZT-_" mylink="execute" enclabels="" sections="1" secttype="Operation">
      <pstext mayhavelinks="1" section="Execute" rep_section="execute"><a link="impl-aarch64.CheckSMEEnabled.0" file="shared_pseudocode.xml" hover="function: CheckSMEEnabled()">CheckSMEEnabled</a>();
<a link="impl-aarch64.CheckSMEZT0Enabled.0" file="shared_pseudocode.xml" hover="function: CheckSMEZT0Enabled()">CheckSMEZT0Enabled</a>();
bits(512) operand = <a link="impl-aarch64.ZT0.read.1" file="shared_pseudocode.xml" hover="accessor: bits(width) ZT0[integer width]">ZT0</a>[512];

<a link="impl-aarch64.X.write.2" file="shared_pseudocode.xml" hover="accessor: X[integer n, integer width] = bits(width) value">X</a>[t, 64] = <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, offset, 64];</pstext>
    </ps>
  </ps_section>
</instructionsection>