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<instructionsection id="ldnf1w_z_p_bi" title="LDNF1W" type="instruction">
  <docvars>
    <docvar key="instr-class" value="sve" />
    <docvar key="isa" value="A64" />
    <docvar key="mnemonic" value="LDNF1W" />
  </docvars>
  <heading>LDNF1W</heading>
  <desc>
    <brief>Contiguous load non-fault unsigned words to vector (immediate index)</brief>
    <description>
      <para>Contiguous load with non-faulting behavior of unsigned words to elements of a vector register from the memory address generated by a 64-bit scalar base and immediate index in the range -8 to 7 which is multiplied by the vector's in-memory size, irrespective of predication, and added to the base address. Inactive elements will not cause a read from Device memory or signal a fault, and are set to zero in the destination vector.</para>
      <para>This instruction is illegal when executed in Streaming SVE mode, unless FEAT_SME_FA64 is implemented and enabled.</para>
    </description>
    <status>Green</status>
    <predicated>True</predicated>
    <sm_policy>SM_0_only</sm_policy>
  </desc>
  <alias_list howmany="0"></alias_list>
  <classes>
    <classesintro count="2">
      <txt>It has encodings from 2 classes:</txt>
      <a href="#iclass_32_elem">32-bit element</a>
      <txt> and </txt>
      <a href="#iclass_64_elem">64-bit element</a>
    </classesintro>
    <iclass name="32-bit element" oneof="2" id="iclass_32_elem" no_encodings="1" isa="A64">
      <docvars>
        <docvar key="instr-class" value="sve" />
        <docvar key="isa" value="A64" />
        <docvar key="mnemonic" value="LDNF1W" />
        <docvar key="sve-elem-type" value="32-elem" />
      </docvars>
      <iclassintro count="1"></iclassintro>
      <regdiagram form="32" psname="LDNF1W-Z.P.BI-U32" tworows="1">
        <box hibit="31" width="7" settings="7">
          <c>1</c>
          <c>0</c>
          <c>1</c>
          <c>0</c>
          <c>0</c>
          <c>1</c>
          <c>0</c>
        </box>
        <box hibit="24" width="3" name="dtype&lt;3:1&gt;" usename="1" settings="3">
          <c>1</c>
          <c>0</c>
          <c>1</c>
        </box>
        <box hibit="21" name="dtype&lt;0&gt;" usename="1" settings="1">
          <c>0</c>
        </box>
        <box hibit="20" settings="1">
          <c>1</c>
        </box>
        <box hibit="19" width="4" name="imm4" usename="1">
          <c colspan="4"></c>
        </box>
        <box hibit="15" width="3" settings="3">
          <c>1</c>
          <c>0</c>
          <c>1</c>
        </box>
        <box hibit="12" width="3" name="Pg" usename="1">
          <c colspan="3"></c>
        </box>
        <box hibit="9" width="5" name="Rn" usename="1">
          <c colspan="5"></c>
        </box>
        <box hibit="4" width="5" name="Zt" usename="1">
          <c colspan="5"></c>
        </box>
      </regdiagram>
      <encoding name="ldnf1w_z_p_bi_u32" oneofinclass="1" oneof="2" label="">
        <docvars>
          <docvar key="instr-class" value="sve" />
          <docvar key="isa" value="A64" />
          <docvar key="mnemonic" value="LDNF1W" />
          <docvar key="sve-elem-type" value="32-elem" />
        </docvars>
        <asmtemplate><text>LDNF1W  </text><text>{</text><text> </text><a link="sa_zt" hover="Scalable vector register to be transferred (field &quot;Zt&quot;)">&lt;Zt&gt;</a><text>.S </text><text>}</text><text>, </text><a link="sa_pg" hover="Governing scalable predicate register P0-P7 (field &quot;Pg&quot;)">&lt;Pg&gt;</a><text>/Z, [</text><a link="sa_xn_sp" hover="64-bit general-purpose base register or SP (field &quot;Rn&quot;)">&lt;Xn|SP&gt;</a><text>{</text><text>, #</text><a link="sa_imm" hover="Optional signed immediate vector offset [-8-7], default 0 (field &quot;imm4&quot;)">&lt;imm&gt;</a><text>, MUL VL</text><text>}</text><text>]</text></asmtemplate>
      </encoding>
      <ps_section howmany="1">
        <ps name="LDNF1W-Z.P.BI-U32" mylink="LDNF1W-Z.P.BI-U32" enclabels="" sections="1" secttype="noheading">
          <pstext mayhavelinks="1" section="Decode" rep_section="decode">if !<a link="impl-aarch64.HaveSVE.0" file="shared_pseudocode.xml" hover="function: boolean HaveSVE()">HaveSVE</a>() then UNDEFINED;
integer t = <a link="impl-shared.UInt.1" file="shared_pseudocode.xml" hover="function: integer UInt(bits(N) x)">UInt</a>(Zt);
integer n = <a link="impl-shared.UInt.1" file="shared_pseudocode.xml" hover="function: integer UInt(bits(N) x)">UInt</a>(Rn);
integer g = <a link="impl-shared.UInt.1" file="shared_pseudocode.xml" hover="function: integer UInt(bits(N) x)">UInt</a>(Pg);
constant integer esize = 32;
constant integer msize = 32;
boolean unsigned = TRUE;
integer offset = <a link="impl-shared.SInt.1" file="shared_pseudocode.xml" hover="function: integer SInt(bits(N) x)">SInt</a>(imm4);</pstext>
        </ps>
      </ps_section>
    </iclass>
    <iclass name="64-bit element" oneof="2" id="iclass_64_elem" no_encodings="1" isa="A64">
      <docvars>
        <docvar key="instr-class" value="sve" />
        <docvar key="isa" value="A64" />
        <docvar key="mnemonic" value="LDNF1W" />
        <docvar key="sve-elem-type" value="64-elem" />
      </docvars>
      <iclassintro count="1"></iclassintro>
      <regdiagram form="32" psname="LDNF1W-Z.P.BI-U64" tworows="1">
        <box hibit="31" width="7" settings="7">
          <c>1</c>
          <c>0</c>
          <c>1</c>
          <c>0</c>
          <c>0</c>
          <c>1</c>
          <c>0</c>
        </box>
        <box hibit="24" width="3" name="dtype&lt;3:1&gt;" usename="1" settings="3">
          <c>1</c>
          <c>0</c>
          <c>1</c>
        </box>
        <box hibit="21" name="dtype&lt;0&gt;" usename="1" settings="1">
          <c>1</c>
        </box>
        <box hibit="20" settings="1">
          <c>1</c>
        </box>
        <box hibit="19" width="4" name="imm4" usename="1">
          <c colspan="4"></c>
        </box>
        <box hibit="15" width="3" settings="3">
          <c>1</c>
          <c>0</c>
          <c>1</c>
        </box>
        <box hibit="12" width="3" name="Pg" usename="1">
          <c colspan="3"></c>
        </box>
        <box hibit="9" width="5" name="Rn" usename="1">
          <c colspan="5"></c>
        </box>
        <box hibit="4" width="5" name="Zt" usename="1">
          <c colspan="5"></c>
        </box>
      </regdiagram>
      <encoding name="ldnf1w_z_p_bi_u64" oneofinclass="1" oneof="2" label="">
        <docvars>
          <docvar key="instr-class" value="sve" />
          <docvar key="isa" value="A64" />
          <docvar key="mnemonic" value="LDNF1W" />
          <docvar key="sve-elem-type" value="64-elem" />
        </docvars>
        <asmtemplate><text>LDNF1W  </text><text>{</text><text> </text><a link="sa_zt" hover="Scalable vector register to be transferred (field &quot;Zt&quot;)">&lt;Zt&gt;</a><text>.D </text><text>}</text><text>, </text><a link="sa_pg" hover="Governing scalable predicate register P0-P7 (field &quot;Pg&quot;)">&lt;Pg&gt;</a><text>/Z, [</text><a link="sa_xn_sp" hover="64-bit general-purpose base register or SP (field &quot;Rn&quot;)">&lt;Xn|SP&gt;</a><text>{</text><text>, #</text><a link="sa_imm" hover="Optional signed immediate vector offset [-8-7], default 0 (field &quot;imm4&quot;)">&lt;imm&gt;</a><text>, MUL VL</text><text>}</text><text>]</text></asmtemplate>
      </encoding>
      <ps_section howmany="1">
        <ps name="LDNF1W-Z.P.BI-U64" mylink="LDNF1W-Z.P.BI-U64" enclabels="" sections="1" secttype="noheading">
          <pstext mayhavelinks="1" section="Decode" rep_section="decode">if !<a link="impl-aarch64.HaveSVE.0" file="shared_pseudocode.xml" hover="function: boolean HaveSVE()">HaveSVE</a>() then UNDEFINED;
integer t = <a link="impl-shared.UInt.1" file="shared_pseudocode.xml" hover="function: integer UInt(bits(N) x)">UInt</a>(Zt);
integer n = <a link="impl-shared.UInt.1" file="shared_pseudocode.xml" hover="function: integer UInt(bits(N) x)">UInt</a>(Rn);
integer g = <a link="impl-shared.UInt.1" file="shared_pseudocode.xml" hover="function: integer UInt(bits(N) x)">UInt</a>(Pg);
constant integer esize = 64;
constant integer msize = 32;
boolean unsigned = TRUE;
integer offset = <a link="impl-shared.SInt.1" file="shared_pseudocode.xml" hover="function: integer SInt(bits(N) x)">SInt</a>(imm4);</pstext>
        </ps>
      </ps_section>
    </iclass>
  </classes>
  <explanations scope="all">
    <explanation enclist="ldnf1w_z_p_bi_u32, ldnf1w_z_p_bi_u64" symboldefcount="1">
      <symbol link="sa_zt">&lt;Zt&gt;</symbol>
      <account encodedin="Zt">
        <intro>
          <para>Is the name of the scalable vector register to be transferred, encoded in the "Zt" field.</para>
        </intro>
      </account>
    </explanation>
    <explanation enclist="ldnf1w_z_p_bi_u32, ldnf1w_z_p_bi_u64" symboldefcount="1">
      <symbol link="sa_pg">&lt;Pg&gt;</symbol>
      <account encodedin="Pg">
        <intro>
          <para>Is the name of the governing scalable predicate register P0-P7, encoded in the "Pg" field.</para>
        </intro>
      </account>
    </explanation>
    <explanation enclist="ldnf1w_z_p_bi_u32, ldnf1w_z_p_bi_u64" symboldefcount="1">
      <symbol link="sa_xn_sp">&lt;Xn|SP&gt;</symbol>
      <account encodedin="Rn">
        <intro>
          <para>Is the 64-bit name of the general-purpose base register or stack pointer, encoded in the "Rn" field.</para>
        </intro>
      </account>
    </explanation>
    <explanation enclist="ldnf1w_z_p_bi_u32, ldnf1w_z_p_bi_u64" symboldefcount="1">
      <symbol link="sa_imm">&lt;imm&gt;</symbol>
      <account encodedin="imm4">
        <intro>
          <para>Is the optional signed immediate vector offset, in the range -8 to 7, defaulting to 0, encoded in the "imm4" field.</para>
        </intro>
      </account>
    </explanation>
  </explanations>
  <ps_section howmany="1">
    <ps name="LDNF1W-Z.P.BI-U32" mylink="execute" enclabels="" sections="1" secttype="Operation">
      <pstext mayhavelinks="1" section="Execute" rep_section="execute"><a link="impl-aarch64.CheckNonStreamingSVEEnabled.0" file="shared_pseudocode.xml" hover="function: CheckNonStreamingSVEEnabled()">CheckNonStreamingSVEEnabled</a>();
constant integer VL = <a link="impl-aarch64.CurrentVL.read.none" file="shared_pseudocode.xml" hover="accessor: integer CurrentVL">CurrentVL</a>;
constant integer PL = VL DIV 8;
constant integer elements = VL DIV esize;
bits(64) base;
bits(PL) mask = <a link="impl-aarch64.P.read.2" file="shared_pseudocode.xml" hover="accessor: bits(width) P[integer n, integer width]">P</a>[g, PL];
bits(VL) result;
bits(VL) orig = <a link="impl-aarch64.Z.read.2" file="shared_pseudocode.xml" hover="accessor: bits(width) Z[integer n, integer width]">Z</a>[t, VL];
bits(msize) data;
constant integer mbytes = msize DIV 8;
boolean fault = FALSE;
boolean faulted = FALSE;
boolean unknown = FALSE;
boolean contiguous = TRUE;
boolean tagchecked = n != 31;
<a link="AccessDescriptor" file="shared_pseudocode.xml" hover="type AccessDescriptor is ( AccessType acctype, bits(2) el, SecurityState ss, boolean acqsc, boolean acqpc, boolean relsc, boolean limitedordered, boolean exclusive, boolean atomicop, MemAtomicOp modop, boolean nontemporal, boolean read, boolean write, CacheOp cacheop, CacheOpScope opscope, CacheType cachetype, boolean pan, boolean transactional, boolean nonfault, boolean firstfault, boolean first, boolean contiguous, boolean streamingsve, boolean ls64, boolean mops, boolean rcw, boolean rcws, boolean toplevel, VARange varange, boolean a32lsmd, boolean tagchecked, boolean tagaccess, MPAMinfo mpam )">AccessDescriptor</a> accdesc = <a link="impl-shared.CreateAccDescSVENF.2" file="shared_pseudocode.xml" hover="function: AccessDescriptor CreateAccDescSVENF(boolean contiguous, boolean tagchecked)">CreateAccDescSVENF</a>(contiguous, tagchecked);

if !<a link="impl-aarch64.AnyActiveElement.2" file="shared_pseudocode.xml" hover="function: boolean AnyActiveElement(bits(N) mask, integer esize)">AnyActiveElement</a>(mask, esize) then
    if n == 31 &amp;&amp; <a link="impl-shared.ConstrainUnpredictableBool.1" file="shared_pseudocode.xml" hover="function: boolean ConstrainUnpredictableBool(Unpredictable which)">ConstrainUnpredictableBool</a>(<a link="Unpredictable_CHECKSPNONEACTIVE" file="shared_pseudocode.xml" hover="enumeration Unpredictable {  Unpredictable_VMSR,  Unpredictable_WBOVERLAPLD,  Unpredictable_WBOVERLAPST,  Unpredictable_LDPOVERLAP,  Unpredictable_BASEOVERLAP,  Unpredictable_DATAOVERLAP,  Unpredictable_DEVPAGE2,  Unpredictable_INSTRDEVICE,  Unpredictable_RESCPACR,  Unpredictable_RESMAIR,  Unpredictable_S1CTAGGED,  Unpredictable_S2RESMEMATTR,  Unpredictable_RESTEXCB,  Unpredictable_RESPRRR,  Unpredictable_RESDACR,  Unpredictable_RESVTCRS,  Unpredictable_RESTnSZ,  Unpredictable_RESTCF,  Unpredictable_DEVICETAGSTORE,  Unpredictable_OORTnSZ,  Unpredictable_LARGEIPA,  Unpredictable_ESRCONDPASS,  Unpredictable_ILZEROIT,  Unpredictable_ILZEROT,  Unpredictable_BPVECTORCATCHPRI,  Unpredictable_VCMATCHHALF,   Unpredictable_VCMATCHDAPA,  Unpredictable_WPMASKANDBAS,  Unpredictable_WPBASCONTIGUOUS,  Unpredictable_RESWPMASK,  Unpredictable_WPMASKEDBITS,  Unpredictable_RESBPWPCTRL,  Unpredictable_BPNOTIMPL,  Unpredictable_RESBPTYPE,  Unpredictable_BPNOTCTXCMP,  Unpredictable_BPMATCHHALF,  Unpredictable_BPMISMATCHHALF,  Unpredictable_RESTARTALIGNPC,  Unpredictable_RESTARTZEROUPPERPC,  Unpredictable_ZEROUPPER,   Unpredictable_ERETZEROUPPERPC,   Unpredictable_A32FORCEALIGNPC,  Unpredictable_SMD,  Unpredictable_NONFAULT,  Unpredictable_SVEZEROUPPER,  Unpredictable_SVELDNFDATA,  Unpredictable_SVELDNFZERO,  Unpredictable_CHECKSPNONEACTIVE,  Unpredictable_SMEZEROUPPER,  Unpredictable_NVNV1,  Unpredictable_Shareability,  Unpredictable_AFUPDATE,  Unpredictable_DBUPDATE,  Unpredictable_IESBinDebug,  Unpredictable_BADPMSFCR,  Unpredictable_ZEROBTYPE,  Unpredictable_EL2TIMESTAMP, Unpredictable_EL1TIMESTAMP,  Unpredictable_RESERVEDNSxB,  Unpredictable_WFxTDEBUG,  Unpredictable_LS64UNSUPPORTED,   Unpredictable_MISALIGNEDATOMIC,  Unpredictable_CLEARERRITEZERO,   Unpredictable_ALUEXCEPTIONRETURN,  Unpredictable_IGNORETRAPINDEBUG,  Unpredictable_DBGxVR_RESS,  Unpredictable_PMUEVENTCOUNTER,  Unpredictable_PMSCR_PCT,   Unpredictable_CounterReservedForEL2,  Unpredictable_BRBFILTRATE,   Unpredictable_MOPSOVERLAP31,  Unpredictable_STOREONLYTAGCHECKEDCAS,  Unpredictable_RESTC }">Unpredictable_CHECKSPNONEACTIVE</a>) then
        <a link="impl-aarch64.CheckSPAlignment.0" file="shared_pseudocode.xml" hover="function: CheckSPAlignment()">CheckSPAlignment</a>();
else
    if n == 31 then <a link="impl-aarch64.CheckSPAlignment.0" file="shared_pseudocode.xml" hover="function: CheckSPAlignment()">CheckSPAlignment</a>();
    base = if n == 31 then <a link="impl-aarch64.SP.read.0" file="shared_pseudocode.xml" hover="accessor: bits(64) SP[]">SP</a>[] else <a link="impl-aarch64.X.read.2" file="shared_pseudocode.xml" hover="accessor: bits(width) X[integer n, integer width]">X</a>[n, 64];

for e = 0 to elements-1
    if <a link="impl-aarch64.ActivePredicateElement.3" file="shared_pseudocode.xml" hover="function: boolean ActivePredicateElement(bits(N) pred, integer e, integer esize)">ActivePredicateElement</a>(mask, e, esize) then
        integer eoff = (offset * elements) + e;
        bits(64) addr = base + eoff * mbytes;
        // MemNF[] will return fault=TRUE if access is not performed for any reason
        (data, fault) = <a link="impl-aarch64.MemNF.read.3" file="shared_pseudocode.xml" hover="accessor: (bits(8*size), boolean) MemNF[bits(64) address, integer size, AccessDescriptor accdesc]">MemNF</a>[addr, mbytes, accdesc];
    else
        (data, fault) = (<a link="impl-shared.Zeros.1" file="shared_pseudocode.xml" hover="function: bits(N) Zeros(integer N)">Zeros</a>(msize), FALSE);

    // FFR elements set to FALSE following a supressed access/fault
    faulted = faulted || fault;
    if faulted then
        <a link="impl-aarch64.ElemFFR.write.2" file="shared_pseudocode.xml" hover="accessor: ElemFFR[integer e, integer esize] = bit value">ElemFFR</a>[e, esize] = '0';

    // Value becomes CONSTRAINED UNPREDICTABLE after an FFR element is FALSE
    unknown = unknown || <a link="impl-aarch64.ElemFFR.read.2" file="shared_pseudocode.xml" hover="accessor: bit ElemFFR[integer e, integer esize]">ElemFFR</a>[e, esize] == '0';
    if unknown then
        if !fault &amp;&amp; <a link="impl-shared.ConstrainUnpredictableBool.1" file="shared_pseudocode.xml" hover="function: boolean ConstrainUnpredictableBool(Unpredictable which)">ConstrainUnpredictableBool</a>(<a link="Unpredictable_SVELDNFDATA" file="shared_pseudocode.xml" hover="enumeration Unpredictable {  Unpredictable_VMSR,  Unpredictable_WBOVERLAPLD,  Unpredictable_WBOVERLAPST,  Unpredictable_LDPOVERLAP,  Unpredictable_BASEOVERLAP,  Unpredictable_DATAOVERLAP,  Unpredictable_DEVPAGE2,  Unpredictable_INSTRDEVICE,  Unpredictable_RESCPACR,  Unpredictable_RESMAIR,  Unpredictable_S1CTAGGED,  Unpredictable_S2RESMEMATTR,  Unpredictable_RESTEXCB,  Unpredictable_RESPRRR,  Unpredictable_RESDACR,  Unpredictable_RESVTCRS,  Unpredictable_RESTnSZ,  Unpredictable_RESTCF,  Unpredictable_DEVICETAGSTORE,  Unpredictable_OORTnSZ,  Unpredictable_LARGEIPA,  Unpredictable_ESRCONDPASS,  Unpredictable_ILZEROIT,  Unpredictable_ILZEROT,  Unpredictable_BPVECTORCATCHPRI,  Unpredictable_VCMATCHHALF,   Unpredictable_VCMATCHDAPA,  Unpredictable_WPMASKANDBAS,  Unpredictable_WPBASCONTIGUOUS,  Unpredictable_RESWPMASK,  Unpredictable_WPMASKEDBITS,  Unpredictable_RESBPWPCTRL,  Unpredictable_BPNOTIMPL,  Unpredictable_RESBPTYPE,  Unpredictable_BPNOTCTXCMP,  Unpredictable_BPMATCHHALF,  Unpredictable_BPMISMATCHHALF,  Unpredictable_RESTARTALIGNPC,  Unpredictable_RESTARTZEROUPPERPC,  Unpredictable_ZEROUPPER,   Unpredictable_ERETZEROUPPERPC,   Unpredictable_A32FORCEALIGNPC,  Unpredictable_SMD,  Unpredictable_NONFAULT,  Unpredictable_SVEZEROUPPER,  Unpredictable_SVELDNFDATA,  Unpredictable_SVELDNFZERO,  Unpredictable_CHECKSPNONEACTIVE,  Unpredictable_SMEZEROUPPER,  Unpredictable_NVNV1,  Unpredictable_Shareability,  Unpredictable_AFUPDATE,  Unpredictable_DBUPDATE,  Unpredictable_IESBinDebug,  Unpredictable_BADPMSFCR,  Unpredictable_ZEROBTYPE,  Unpredictable_EL2TIMESTAMP, Unpredictable_EL1TIMESTAMP,  Unpredictable_RESERVEDNSxB,  Unpredictable_WFxTDEBUG,  Unpredictable_LS64UNSUPPORTED,   Unpredictable_MISALIGNEDATOMIC,  Unpredictable_CLEARERRITEZERO,   Unpredictable_ALUEXCEPTIONRETURN,  Unpredictable_IGNORETRAPINDEBUG,  Unpredictable_DBGxVR_RESS,  Unpredictable_PMUEVENTCOUNTER,  Unpredictable_PMSCR_PCT,   Unpredictable_CounterReservedForEL2,  Unpredictable_BRBFILTRATE,   Unpredictable_MOPSOVERLAP31,  Unpredictable_STOREONLYTAGCHECKEDCAS,  Unpredictable_RESTC }">Unpredictable_SVELDNFDATA</a>) then
            <a link="impl-shared.Elem.write.3" file="shared_pseudocode.xml" hover="accessor: Elem[bits(N) &amp;vector, integer e, integer size] = bits(size) value">Elem</a>[result, e, esize] = <a link="impl-shared.Extend.3" file="shared_pseudocode.xml" hover="function: bits(N) Extend(bits(M) x, integer N, boolean unsigned)">Extend</a>(data, esize, unsigned);
        elsif <a link="impl-shared.ConstrainUnpredictableBool.1" file="shared_pseudocode.xml" hover="function: boolean ConstrainUnpredictableBool(Unpredictable which)">ConstrainUnpredictableBool</a>(<a link="Unpredictable_SVELDNFZERO" file="shared_pseudocode.xml" hover="enumeration Unpredictable {  Unpredictable_VMSR,  Unpredictable_WBOVERLAPLD,  Unpredictable_WBOVERLAPST,  Unpredictable_LDPOVERLAP,  Unpredictable_BASEOVERLAP,  Unpredictable_DATAOVERLAP,  Unpredictable_DEVPAGE2,  Unpredictable_INSTRDEVICE,  Unpredictable_RESCPACR,  Unpredictable_RESMAIR,  Unpredictable_S1CTAGGED,  Unpredictable_S2RESMEMATTR,  Unpredictable_RESTEXCB,  Unpredictable_RESPRRR,  Unpredictable_RESDACR,  Unpredictable_RESVTCRS,  Unpredictable_RESTnSZ,  Unpredictable_RESTCF,  Unpredictable_DEVICETAGSTORE,  Unpredictable_OORTnSZ,  Unpredictable_LARGEIPA,  Unpredictable_ESRCONDPASS,  Unpredictable_ILZEROIT,  Unpredictable_ILZEROT,  Unpredictable_BPVECTORCATCHPRI,  Unpredictable_VCMATCHHALF,   Unpredictable_VCMATCHDAPA,  Unpredictable_WPMASKANDBAS,  Unpredictable_WPBASCONTIGUOUS,  Unpredictable_RESWPMASK,  Unpredictable_WPMASKEDBITS,  Unpredictable_RESBPWPCTRL,  Unpredictable_BPNOTIMPL,  Unpredictable_RESBPTYPE,  Unpredictable_BPNOTCTXCMP,  Unpredictable_BPMATCHHALF,  Unpredictable_BPMISMATCHHALF,  Unpredictable_RESTARTALIGNPC,  Unpredictable_RESTARTZEROUPPERPC,  Unpredictable_ZEROUPPER,   Unpredictable_ERETZEROUPPERPC,   Unpredictable_A32FORCEALIGNPC,  Unpredictable_SMD,  Unpredictable_NONFAULT,  Unpredictable_SVEZEROUPPER,  Unpredictable_SVELDNFDATA,  Unpredictable_SVELDNFZERO,  Unpredictable_CHECKSPNONEACTIVE,  Unpredictable_SMEZEROUPPER,  Unpredictable_NVNV1,  Unpredictable_Shareability,  Unpredictable_AFUPDATE,  Unpredictable_DBUPDATE,  Unpredictable_IESBinDebug,  Unpredictable_BADPMSFCR,  Unpredictable_ZEROBTYPE,  Unpredictable_EL2TIMESTAMP, Unpredictable_EL1TIMESTAMP,  Unpredictable_RESERVEDNSxB,  Unpredictable_WFxTDEBUG,  Unpredictable_LS64UNSUPPORTED,   Unpredictable_MISALIGNEDATOMIC,  Unpredictable_CLEARERRITEZERO,   Unpredictable_ALUEXCEPTIONRETURN,  Unpredictable_IGNORETRAPINDEBUG,  Unpredictable_DBGxVR_RESS,  Unpredictable_PMUEVENTCOUNTER,  Unpredictable_PMSCR_PCT,   Unpredictable_CounterReservedForEL2,  Unpredictable_BRBFILTRATE,   Unpredictable_MOPSOVERLAP31,  Unpredictable_STOREONLYTAGCHECKEDCAS,  Unpredictable_RESTC }">Unpredictable_SVELDNFZERO</a>) then
            <a link="impl-shared.Elem.write.3" file="shared_pseudocode.xml" hover="accessor: Elem[bits(N) &amp;vector, integer e, integer size] = bits(size) value">Elem</a>[result, e, esize] = <a link="impl-shared.Zeros.1" file="shared_pseudocode.xml" hover="function: bits(N) Zeros(integer N)">Zeros</a>(esize);
        else  // merge
            <a link="impl-shared.Elem.write.3" file="shared_pseudocode.xml" hover="accessor: Elem[bits(N) &amp;vector, integer e, integer size] = bits(size) value">Elem</a>[result, e, esize] = <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>[orig, e, esize];
    else
        <a link="impl-shared.Elem.write.3" file="shared_pseudocode.xml" hover="accessor: Elem[bits(N) &amp;vector, integer e, integer size] = bits(size) value">Elem</a>[result, e, esize] = <a link="impl-shared.Extend.3" file="shared_pseudocode.xml" hover="function: bits(N) Extend(bits(M) x, integer N, boolean unsigned)">Extend</a>(data, esize, unsigned);

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