olspan=3>virtual task pre_write(</td>      </tr><tr><td>&nbsp;&nbsp;&nbsp;</td>      <td class=PType nowrap>uvm_reg_item&nbsp;</td>
      <td class=PParameter nowrap width=100%>rw</td>
    </tr>
    <tr>
      <td class=PAfterParameters colspan=3>)</td></tr>
      </table></td></tr>
    </table></blockquote>
<div class=CBody><p>Called before user-defined backdoor register write.</p><p>The registered callback methods are invoked after the invocation of this method.</p><p>The written value, if modified, modif