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| <h3 class="section">G.4 Enum Target Types</h3> |
| |
| <p><a name="index-target-descriptions_002c-enum-types-3656"></a> |
| Enum target types are useful in ‘<samp><span class="samp">struct</span></samp>’ and ‘<samp><span class="samp">flags</span></samp>’ |
| register descriptions. See <a href="Target-Description-Format.html#Target-Description-Format">Target Description Format</a>. |
| |
| <p>Enum types have a name, size and a list of name/value pairs. |
| |
| <pre class="smallexample"> <enum id="<var>id</var>" size="<var>size</var>"> |
| <evalue name="<var>name</var>" value="<var>value</var>"/> |
| ... |
| </enum> |
| </pre> |
| <p>Enums must be defined before they are used. |
| |
| <pre class="smallexample"> <enum id="levels_type" size="4"> |
| <evalue name="low" value="0"/> |
| <evalue name="high" value="1"/> |
| </enum> |
| <flags id="flags_type" size="4"> |
| <field name="X" start="0"/> |
| <field name="LEVEL" start="1" end="1" type="levels_type"/> |
| </flags> |
| <reg name="flags" bitsize="32" type="flags_type"/> |
| </pre> |
| <p>Given that description, a value of 3 for the ‘<samp><span class="samp">flags</span></samp>’ register |
| would be printed as: |
| |
| <pre class="smallexample"> (gdb) info register flags |
| flags 0x3 [ X LEVEL=high ] |
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