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Add examples for "match" intrinsics

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Add examples for
- `vec_first_match_index`
- `vec_first_match_index_or_eos`
- `vec_first_mismatch_index`
- `vec_first_mismatch_index_or_eos`

Also, `vec_first_match_index` implmentations in this document and
in GCC were behaving like `vec_first_match_or_eos_index`.
Correct this document.  GCC PR94833 was already opened.

Fixes #18.

Signed-off-by: Paul A. Clarke <pc@us.ibm.com>
pull/54/head
Paul Clarke 4 years ago committed by Bill Schmidt
parent a0ae5b21bb
commit 8bdc799731
1 changed files with 803 additions and 19 deletions
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822
Intrinsics_Reference/ch_vec_reference.xml
Unescape Escape View File

@ -15315,21 +15315,217 @@ xmlns:xlink="http://www.w3.org/1999/xlink" xml:id="VIPR.vec-ref">
element index of the position of the first character match in
natural element order. If no match, returns the number of
characters as an element count in the vector argument.</para>
<para>An example follows:
<informaltable frame="all">
<tgroup cols="17">
<colspec colname="c0" colwidth="50*" />
<colspec colname="c1" colwidth="10*" />
<colspec colname="c2" colwidth="10*" />
<colspec colname="c3" colwidth="10*" />
<colspec colname="c4" colwidth="10*" />
<colspec colname="c5" colwidth="10*" />
<colspec colname="c6" colwidth="10*" />
<colspec colname="c7" colwidth="10*" />
<colspec colname="c8" colwidth="10*" />
<colspec colname="c9" colwidth="10*" />
<colspec colname="c10" colwidth="10*" />
<colspec colname="c11" colwidth="10*" />
<colspec colname="c12" colwidth="10*" />
<colspec colname="c13" colwidth="10*" />
<colspec colname="c14" colwidth="10*" />
<colspec colname="c15" colwidth="10*" />
<colspec colname="c16" colwidth="10*" />
<spanspec spanname="result" namest="c1" nameend="c16" />
<thead>
<row>
<entry align="center" valign="middle">
<para> <emphasis>byte index</emphasis> n </para>
</entry>
<entry align="center" valign="middle">
<para> <emphasis>0</emphasis> </para>
</entry>
<entry align="center" valign="middle">
<para> <emphasis>1</emphasis> </para>
</entry>
<entry align="center" valign="middle">
<para> <emphasis>2</emphasis> </para>
</entry>
<entry align="center" valign="middle">
<para> <emphasis>3</emphasis> </para>
</entry>
<entry align="center" valign="middle">
<para> <emphasis>4</emphasis> </para>
</entry>
<entry align="center" valign="middle">
<para> <emphasis>5</emphasis> </para>
</entry>
<entry align="center" valign="middle">
<para> <emphasis>6</emphasis> </para>
</entry>
<entry align="center" valign="middle">
<para> <emphasis>7</emphasis> </para>
</entry>
<entry align="center" valign="middle">
<para> <emphasis>8</emphasis> </para>
</entry>
<entry align="center" valign="middle">
<para> <emphasis>9</emphasis> </para>
</entry>
<entry align="center" valign="middle">
<para> <emphasis>10</emphasis> </para>
</entry>
<entry align="center" valign="middle">
<para> <emphasis>11</emphasis> </para>
</entry>
<entry align="center" valign="middle">
<para> <emphasis>12</emphasis> </para>
</entry>
<entry align="center" valign="middle">
<para> <emphasis>13</emphasis> </para>
</entry>
<entry align="center" valign="middle">
<para> <emphasis>14</emphasis> </para>
</entry>
<entry align="center" valign="middle">
<para> <emphasis>15</emphasis> </para>
</entry>
</row>
</thead>
<tbody>
<row>
<entry align="center" valign="middle">
<para> <emphasis role="bold">a</emphasis> </para>
</entry>
<entry align="center" valign="middle">
<para>00</para>
</entry>
<entry align="center" valign="middle">
<para>10</para>
</entry>
<entry align="center" valign="middle">
<para>20</para>
</entry>
<entry align="center" valign="middle">
<para>30</para>
</entry>
<entry align="center" valign="middle">
<para>40</para>
</entry>
<entry align="center" valign="middle">
<para>??</para>
</entry>
<entry align="center" valign="middle">
<para>??</para>
</entry>
<entry align="center" valign="middle">
<para>??</para>
</entry>
<entry align="center" valign="middle">
<para>??</para>
</entry>
<entry align="center" valign="middle">
<para>??</para>
</entry>
<entry align="center" valign="middle">
<para>??</para>
</entry>
<entry align="center" valign="middle">
<para>??</para>
</entry>
<entry align="center" valign="middle">
<para>??</para>
</entry>
<entry align="center" valign="middle">
<para>??</para>
</entry>
<entry align="center" valign="middle">
<para>??</para>
</entry>
<entry align="center" valign="middle">
<para>??</para>
</entry>
</row>
<row>
<entry align="center" valign="middle">
<para> <emphasis role="bold">b</emphasis> </para>
</entry>
<entry align="center" valign="middle">
<para>FF</para>
</entry>
<entry align="center" valign="middle">
<para>FF</para>
</entry>
<entry align="center" valign="middle">
<para>FF</para>
</entry>
<entry align="center" valign="middle">
<para>FF</para>
</entry>
<entry align="center" valign="middle">
<para>40</para>
</entry>
<entry align="center" valign="middle">
<para>??</para>
</entry>
<entry align="center" valign="middle">
<para>??</para>
</entry>
<entry align="center" valign="middle">
<para>??</para>
</entry>
<entry align="center" valign="middle">
<para>??</para>
</entry>
<entry align="center" valign="middle">
<para>??</para>
</entry>
<entry align="center" valign="middle">
<para>??</para>
</entry>
<entry align="center" valign="middle">
<para>??</para>
</entry>
<entry align="center" valign="middle">
<para>??</para>
</entry>
<entry align="center" valign="middle">
<para>??</para>
</entry>
<entry align="center" valign="middle">
<para>??</para>
</entry>
<entry align="center" valign="middle">
<para>??</para>
</entry>
</row>
<row>
<entry align="center" valign="middle">
<para> <emphasis role="bold">r</emphasis> </para>
</entry>
<entry spanname="result" align="center" valign="middle">
<para>4</para>
</entry>
</row>
</tbody>
</tgroup>
</informaltable>
</para>

<para><emphasis role="bold">Endian considerations:</emphasis>
The element numbering within a register is left-to-right for big-endian
targets, and right-to-left for little-endian targets.
</para>
<indexterm>
<primary>vcmpnezb</primary>
<primary>vcmpneb</primary>
<secondary>vec_first_match_index</secondary>
</indexterm>
<indexterm>
<primary>vcmpnezh</primary>
<primary>vcmpneh</primary>
<secondary>vec_first_match_index</secondary>
</indexterm>
<indexterm>
<primary>vcmpnezw</primary>
<primary>vcmpnew</primary>
<secondary>vec_first_match_index</secondary>
</indexterm>
<indexterm>
@ -15401,14 +15597,14 @@ xmlns:xlink="http://www.w3.org/1999/xlink" xml:id="VIPR.vec-ref">
</entry>
<entry>
<programlisting>
vcmpnezb t,a,b
vcmpneb t,a,b
xxlnor u,t,t
vctzlsbb r,u
</programlisting>
</entry>
<entry>
<programlisting>
vcmpnezb t,a,b
vcmpneb t,a,b
xxlnor u,t,t
vclzlsbb r,u
</programlisting>
@ -15429,14 +15625,14 @@ xmlns:xlink="http://www.w3.org/1999/xlink" xml:id="VIPR.vec-ref">
</entry>
<entry>
<programlisting>
vcmpnezb t,a,b
vcmpneb t,a,b
xxlnor u,t,t
vctzlsbb r,u
</programlisting>
</entry>
<entry>
<programlisting>
vcmpnezb t,a,b
vcmpneb t,a,b
xxlnor u,t,t
vclzlsbb r,u
</programlisting>
@ -15457,7 +15653,7 @@ xmlns:xlink="http://www.w3.org/1999/xlink" xml:id="VIPR.vec-ref">
</entry>
<entry>
<programlisting>
vcmpnezh t,a,b
vcmpneh t,a,b
xxlnor u,t,t
vctzlsbb v,u
rldicl r,v,63,33
@ -15465,7 +15661,7 @@ xmlns:xlink="http://www.w3.org/1999/xlink" xml:id="VIPR.vec-ref">
</entry>
<entry>
<programlisting>
vcmpnezh t,a,b
vcmpneh t,a,b
xxlnor u,t,t
vclzlsbb v,u
rldicl r,v,63,33
@ -15487,7 +15683,7 @@ xmlns:xlink="http://www.w3.org/1999/xlink" xml:id="VIPR.vec-ref">
</entry>
<entry>
<programlisting>
vcmpnezh t,a,b
vcmpneh t,a,b
xxlnor u,t,t
vctzlsbb v,u
rldicl r,v,63,33
@ -15495,7 +15691,7 @@ xmlns:xlink="http://www.w3.org/1999/xlink" xml:id="VIPR.vec-ref">
</entry>
<entry>
<programlisting>
vcmpnezh t,a,b
vcmpneh t,a,b
xxlnor u,t,t
vclzlsbb v,u
rldicl r,v,63,33
@ -15517,7 +15713,7 @@ xmlns:xlink="http://www.w3.org/1999/xlink" xml:id="VIPR.vec-ref">
</entry>
<entry>
<programlisting>
vcmpnezw t,a,b
vcmpnew t,a,b
xxlnor u,t,t
vctzlsbb v,u
rldicl r,v,62,34
@ -15525,7 +15721,7 @@ xmlns:xlink="http://www.w3.org/1999/xlink" xml:id="VIPR.vec-ref">
</entry>
<entry>
<programlisting>
vcmpnezw t,a,b
vcmpnew t,a,b
xxlnor u,t,t
vclzlsbb v,u
rldicl r,v,62,34
@ -15547,7 +15743,7 @@ xmlns:xlink="http://www.w3.org/1999/xlink" xml:id="VIPR.vec-ref">
</entry>
<entry>
<programlisting>
vcmpnezw t,a,b
vcmpnew t,a,b
xxlnor u,t,t
vctzlsbb v,u
rldicl r,v,62,34
@ -15555,7 +15751,7 @@ xmlns:xlink="http://www.w3.org/1999/xlink" xml:id="VIPR.vec-ref">
</entry>
<entry>
<programlisting>
vcmpnezw t,a,b
vcmpnew t,a,b
xxlnor u,t,t
vclzlsbb v,u
rldicl r,v,62,34
@ -15590,6 +15786,202 @@ xmlns:xlink="http://www.w3.org/1999/xlink" xml:id="VIPR.vec-ref">
either the first character match or an end-of-string (EOS)
terminator. If no match or terminator, returns the number of
characters as an element count in the vector argument.</para>
<para>An example follows:
<informaltable frame="all">
<tgroup cols="17">
<colspec colname="c0" colwidth="50*" />
<colspec colname="c1" colwidth="10*" />
<colspec colname="c2" colwidth="10*" />
<colspec colname="c3" colwidth="10*" />
<colspec colname="c4" colwidth="10*" />
<colspec colname="c5" colwidth="10*" />
<colspec colname="c6" colwidth="10*" />
<colspec colname="c7" colwidth="10*" />
<colspec colname="c8" colwidth="10*" />
<colspec colname="c9" colwidth="10*" />
<colspec colname="c10" colwidth="10*" />
<colspec colname="c11" colwidth="10*" />
<colspec colname="c12" colwidth="10*" />
<colspec colname="c13" colwidth="10*" />
<colspec colname="c14" colwidth="10*" />
<colspec colname="c15" colwidth="10*" />
<colspec colname="c16" colwidth="10*" />
<spanspec spanname="result" namest="c1" nameend="c16" />
<thead>
<row>
<entry align="center" valign="middle">
<para> <emphasis>byte index</emphasis> n </para>
</entry>
<entry align="center" valign="middle">
<para> <emphasis>0</emphasis> </para>
</entry>
<entry align="center" valign="middle">
<para> <emphasis>1</emphasis> </para>
</entry>
<entry align="center" valign="middle">
<para> <emphasis>2</emphasis> </para>
</entry>
<entry align="center" valign="middle">
<para> <emphasis>3</emphasis> </para>
</entry>
<entry align="center" valign="middle">
<para> <emphasis>4</emphasis> </para>
</entry>
<entry align="center" valign="middle">
<para> <emphasis>5</emphasis> </para>
</entry>
<entry align="center" valign="middle">
<para> <emphasis>6</emphasis> </para>
</entry>
<entry align="center" valign="middle">
<para> <emphasis>7</emphasis> </para>
</entry>
<entry align="center" valign="middle">
<para> <emphasis>8</emphasis> </para>
</entry>
<entry align="center" valign="middle">
<para> <emphasis>9</emphasis> </para>
</entry>
<entry align="center" valign="middle">
<para> <emphasis>10</emphasis> </para>
</entry>
<entry align="center" valign="middle">
<para> <emphasis>11</emphasis> </para>
</entry>
<entry align="center" valign="middle">
<para> <emphasis>12</emphasis> </para>
</entry>
<entry align="center" valign="middle">
<para> <emphasis>13</emphasis> </para>
</entry>
<entry align="center" valign="middle">
<para> <emphasis>14</emphasis> </para>
</entry>
<entry align="center" valign="middle">
<para> <emphasis>15</emphasis> </para>
</entry>
</row>
</thead>
<tbody>
<row>
<entry align="center" valign="middle">
<para> <emphasis role="bold">a</emphasis> </para>
</entry>
<entry align="center" valign="middle">
<para>01</para>
</entry>
<entry align="center" valign="middle">
<para>02</para>
</entry>
<entry align="center" valign="middle">
<para>03</para>
</entry>
<entry align="center" valign="middle">
<para>00</para>
</entry>
<entry align="center" valign="middle">
<para>??</para>
</entry>
<entry align="center" valign="middle">
<para>??</para>
</entry>
<entry align="center" valign="middle">
<para>??</para>
</entry>
<entry align="center" valign="middle">
<para>??</para>
</entry>
<entry align="center" valign="middle">
<para>??</para>
</entry>
<entry align="center" valign="middle">
<para>??</para>
</entry>
<entry align="center" valign="middle">
<para>??</para>
</entry>
<entry align="center" valign="middle">
<para>??</para>
</entry>
<entry align="center" valign="middle">
<para>??</para>
</entry>
<entry align="center" valign="middle">
<para>??</para>
</entry>
<entry align="center" valign="middle">
<para>??</para>
</entry>
<entry align="center" valign="middle">
<para>??</para>
</entry>
</row>
<row>
<entry align="center" valign="middle">
<para> <emphasis role="bold">b</emphasis> </para>
</entry>
<entry align="center" valign="middle">
<para>FF</para>
</entry>
<entry align="center" valign="middle">
<para>FF</para>
</entry>
<entry align="center" valign="middle">
<para>FF</para>
</entry>
<entry align="center" valign="middle">
<para>FF</para>
</entry>
<entry align="center" valign="middle">
<para>??</para>
</entry>
<entry align="center" valign="middle">
<para>??</para>
</entry>
<entry align="center" valign="middle">
<para>??</para>
</entry>
<entry align="center" valign="middle">
<para>??</para>
</entry>
<entry align="center" valign="middle">
<para>??</para>
</entry>
<entry align="center" valign="middle">
<para>??</para>
</entry>
<entry align="center" valign="middle">
<para>??</para>
</entry>
<entry align="center" valign="middle">
<para>??</para>
</entry>
<entry align="center" valign="middle">
<para>??</para>
</entry>
<entry align="center" valign="middle">
<para>??</para>
</entry>
<entry align="center" valign="middle">
<para>??</para>
</entry>
<entry align="center" valign="middle">
<para>??</para>
</entry>
</row>
<row>
<entry align="center" valign="middle">
<para> <emphasis role="bold">r</emphasis> </para>
</entry>
<entry spanname="result" align="center" valign="middle">
<para>3</para>
</entry>
</row>
</tbody>
</tgroup>
</informaltable>
</para>

<para><emphasis role="bold">Endian considerations:</emphasis>
The element numbering within a register is left-to-right for big-endian
targets, and right-to-left for little-endian targets.
@ -15928,10 +16320,206 @@ xmlns:xlink="http://www.w3.org/1999/xlink" xml:id="VIPR.vec-ref">
role="bold">b</emphasis>, and returns the first position of
inequality.
</para>
<para><emphasis role="bold">Result value: </emphasis>Returns the
element index of the position of the first character mismatch in
natural element order. If no mismatch, returns the number of
characters as an element count in the vector argument.</para>
<para><emphasis role="bold">Result value: </emphasis>Returns the
element index of the position of the first character mismatch in
natural element order. If no mismatch, returns the number of
characters as an element count in the vector argument.</para>
<para>An example follows:
<informaltable frame="all">
<tgroup cols="17">
<colspec colname="c0" colwidth="50*" />
<colspec colname="c1" colwidth="10*" />
<colspec colname="c2" colwidth="10*" />
<colspec colname="c3" colwidth="10*" />
<colspec colname="c4" colwidth="10*" />
<colspec colname="c5" colwidth="10*" />
<colspec colname="c6" colwidth="10*" />
<colspec colname="c7" colwidth="10*" />
<colspec colname="c8" colwidth="10*" />
<colspec colname="c9" colwidth="10*" />
<colspec colname="c10" colwidth="10*" />
<colspec colname="c11" colwidth="10*" />
<colspec colname="c12" colwidth="10*" />
<colspec colname="c13" colwidth="10*" />
<colspec colname="c14" colwidth="10*" />
<colspec colname="c15" colwidth="10*" />
<colspec colname="c16" colwidth="10*" />
<spanspec spanname="result" namest="c1" nameend="c16" />
<thead>
<row>
<entry align="center" valign="middle">
<para> <emphasis>byte index</emphasis> n </para>
</entry>
<entry align="center" valign="middle">
<para> <emphasis>0</emphasis> </para>
</entry>
<entry align="center" valign="middle">
<para> <emphasis>1</emphasis> </para>
</entry>
<entry align="center" valign="middle">
<para> <emphasis>2</emphasis> </para>
</entry>
<entry align="center" valign="middle">
<para> <emphasis>3</emphasis> </para>
</entry>
<entry align="center" valign="middle">
<para> <emphasis>4</emphasis> </para>
</entry>
<entry align="center" valign="middle">
<para> <emphasis>5</emphasis> </para>
</entry>
<entry align="center" valign="middle">
<para> <emphasis>6</emphasis> </para>
</entry>
<entry align="center" valign="middle">
<para> <emphasis>7</emphasis> </para>
</entry>
<entry align="center" valign="middle">
<para> <emphasis>8</emphasis> </para>
</entry>
<entry align="center" valign="middle">
<para> <emphasis>9</emphasis> </para>
</entry>
<entry align="center" valign="middle">
<para> <emphasis>10</emphasis> </para>
</entry>
<entry align="center" valign="middle">
<para> <emphasis>11</emphasis> </para>
</entry>
<entry align="center" valign="middle">
<para> <emphasis>12</emphasis> </para>
</entry>
<entry align="center" valign="middle">
<para> <emphasis>13</emphasis> </para>
</entry>
<entry align="center" valign="middle">
<para> <emphasis>14</emphasis> </para>
</entry>
<entry align="center" valign="middle">
<para> <emphasis>15</emphasis> </para>
</entry>
</row>
</thead>
<tbody>
<row>
<entry align="center" valign="middle">
<para> <emphasis role="bold">a</emphasis> </para>
</entry>
<entry align="center" valign="middle">
<para>00</para>
</entry>
<entry align="center" valign="middle">
<para>01</para>
</entry>
<entry align="center" valign="middle">
<para>??</para>
</entry>
<entry align="center" valign="middle">
<para>??</para>
</entry>
<entry align="center" valign="middle">
<para>??</para>
</entry>
<entry align="center" valign="middle">
<para>??</para>
</entry>
<entry align="center" valign="middle">
<para>??</para>
</entry>
<entry align="center" valign="middle">
<para>??</para>
</entry>
<entry align="center" valign="middle">
<para>??</para>
</entry>
<entry align="center" valign="middle">
<para>??</para>
</entry>
<entry align="center" valign="middle">
<para>??</para>
</entry>
<entry align="center" valign="middle">
<para>??</para>
</entry>
<entry align="center" valign="middle">
<para>??</para>
</entry>
<entry align="center" valign="middle">
<para>??</para>
</entry>
<entry align="center" valign="middle">
<para>??</para>
</entry>
<entry align="center" valign="middle">
<para>??</para>
</entry>
</row>
<row>
<entry align="center" valign="middle">
<para> <emphasis role="bold">b</emphasis> </para>
</entry>
<entry align="center" valign="middle">
<para>00</para>
</entry>
<entry align="center" valign="middle">
<para>02</para>
</entry>
<entry align="center" valign="middle">
<para>??</para>
</entry>
<entry align="center" valign="middle">
<para>??</para>
</entry>
<entry align="center" valign="middle">
<para>??</para>
</entry>
<entry align="center" valign="middle">
<para>??</para>
</entry>
<entry align="center" valign="middle">
<para>??</para>
</entry>
<entry align="center" valign="middle">
<para>??</para>
</entry>
<entry align="center" valign="middle">
<para>??</para>
</entry>
<entry align="center" valign="middle">
<para>??</para>
</entry>
<entry align="center" valign="middle">
<para>??</para>
</entry>
<entry align="center" valign="middle">
<para>??</para>
</entry>
<entry align="center" valign="middle">
<para>??</para>
</entry>
<entry align="center" valign="middle">
<para>??</para>
</entry>
<entry align="center" valign="middle">
<para>??</para>
</entry>
<entry align="center" valign="middle">
<para>??</para>
</entry>
</row>
<row>
<entry align="center" valign="middle">
<para> <emphasis role="bold">r</emphasis> </para>
</entry>
<entry spanname="result" align="center" valign="middle">
<para>1</para>
</entry>
</row>
</tbody>
</tgroup>
</informaltable>
</para>

<para><emphasis role="bold">Endian considerations:</emphasis>
The element numbering within a register is left-to-right for big-endian
targets, and right-to-left for little-endian targets.
@ -16191,6 +16779,202 @@ xmlns:xlink="http://www.w3.org/1999/xlink" xml:id="VIPR.vec-ref">
either the first character mismatch or an end-of-string (EOS)
terminator. If no mismatch or terminator, returns the number of
characters as an element count in the vector argument.</para>
<para>An example follows:
<informaltable frame="all">
<tgroup cols="17">
<colspec colname="c0" colwidth="50*" />
<colspec colname="c1" colwidth="10*" />
<colspec colname="c2" colwidth="10*" />
<colspec colname="c3" colwidth="10*" />
<colspec colname="c4" colwidth="10*" />
<colspec colname="c5" colwidth="10*" />
<colspec colname="c6" colwidth="10*" />
<colspec colname="c7" colwidth="10*" />
<colspec colname="c8" colwidth="10*" />
<colspec colname="c9" colwidth="10*" />
<colspec colname="c10" colwidth="10*" />
<colspec colname="c11" colwidth="10*" />
<colspec colname="c12" colwidth="10*" />
<colspec colname="c13" colwidth="10*" />
<colspec colname="c14" colwidth="10*" />
<colspec colname="c15" colwidth="10*" />
<colspec colname="c16" colwidth="10*" />
<spanspec spanname="result" namest="c1" nameend="c16" />
<thead>
<row>
<entry align="center" valign="middle">
<para> <emphasis>byte index</emphasis> n </para>
</entry>
<entry align="center" valign="middle">
<para> <emphasis>0</emphasis> </para>
</entry>
<entry align="center" valign="middle">
<para> <emphasis>1</emphasis> </para>
</entry>
<entry align="center" valign="middle">
<para> <emphasis>2</emphasis> </para>
</entry>
<entry align="center" valign="middle">
<para> <emphasis>3</emphasis> </para>
</entry>
<entry align="center" valign="middle">
<para> <emphasis>4</emphasis> </para>
</entry>
<entry align="center" valign="middle">
<para> <emphasis>5</emphasis> </para>
</entry>
<entry align="center" valign="middle">
<para> <emphasis>6</emphasis> </para>
</entry>
<entry align="center" valign="middle">
<para> <emphasis>7</emphasis> </para>
</entry>
<entry align="center" valign="middle">
<para> <emphasis>8</emphasis> </para>
</entry>
<entry align="center" valign="middle">
<para> <emphasis>9</emphasis> </para>
</entry>
<entry align="center" valign="middle">
<para> <emphasis>10</emphasis> </para>
</entry>
<entry align="center" valign="middle">
<para> <emphasis>11</emphasis> </para>
</entry>
<entry align="center" valign="middle">
<para> <emphasis>12</emphasis> </para>
</entry>
<entry align="center" valign="middle">
<para> <emphasis>13</emphasis> </para>
</entry>
<entry align="center" valign="middle">
<para> <emphasis>14</emphasis> </para>
</entry>
<entry align="center" valign="middle">
<para> <emphasis>15</emphasis> </para>
</entry>
</row>
</thead>
<tbody>
<row>
<entry align="center" valign="middle">
<para> <emphasis role="bold">a</emphasis> </para>
</entry>
<entry align="center" valign="middle">
<para>01</para>
</entry>
<entry align="center" valign="middle">
<para>02</para>
</entry>
<entry align="center" valign="middle">
<para>03</para>
</entry>
<entry align="center" valign="middle">
<para>00</para>
</entry>
<entry align="center" valign="middle">
<para>??</para>
</entry>
<entry align="center" valign="middle">
<para>??</para>
</entry>
<entry align="center" valign="middle">
<para>??</para>
</entry>
<entry align="center" valign="middle">
<para>??</para>
</entry>
<entry align="center" valign="middle">
<para>??</para>
</entry>
<entry align="center" valign="middle">
<para>??</para>
</entry>
<entry align="center" valign="middle">
<para>??</para>
</entry>
<entry align="center" valign="middle">
<para>??</para>
</entry>
<entry align="center" valign="middle">
<para>??</para>
</entry>
<entry align="center" valign="middle">
<para>??</para>
</entry>
<entry align="center" valign="middle">
<para>??</para>
</entry>
<entry align="center" valign="middle">
<para>??</para>
</entry>
</row>
<row>
<entry align="center" valign="middle">
<para> <emphasis role="bold">b</emphasis> </para>
</entry>
<entry align="center" valign="middle">
<para>01</para>
</entry>
<entry align="center" valign="middle">
<para>02</para>
</entry>
<entry align="center" valign="middle">
<para>03</para>
</entry>
<entry align="center" valign="middle">
<para>00</para>
</entry>
<entry align="center" valign="middle">
<para>??</para>
</entry>
<entry align="center" valign="middle">
<para>??</para>
</entry>
<entry align="center" valign="middle">
<para>??</para>
</entry>
<entry align="center" valign="middle">
<para>??</para>
</entry>
<entry align="center" valign="middle">
<para>??</para>
</entry>
<entry align="center" valign="middle">
<para>??</para>
</entry>
<entry align="center" valign="middle">
<para>??</para>
</entry>
<entry align="center" valign="middle">
<para>??</para>
</entry>
<entry align="center" valign="middle">
<para>??</para>
</entry>
<entry align="center" valign="middle">
<para>??</para>
</entry>
<entry align="center" valign="middle">
<para>??</para>
</entry>
<entry align="center" valign="middle">
<para>??</para>
</entry>
</row>
<row>
<entry align="center" valign="middle">
<para> <emphasis role="bold">r</emphasis> </para>
</entry>
<entry spanname="result" align="center" valign="middle">
<para>3</para>
</entry>
</row>
</tbody>
</tgroup>
</informaltable>
</para>

<para><emphasis role="bold">Endian considerations:</emphasis>
The element numbering within a register is left-to-right for big-endian
targets, and right-to-left for little-endian targets.

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