9f48">REG_INVALID()</a> if all of the scratch registers available for tool use have been allocated.</dd></dl>
<dl compact><dt><b>Availability:</b></dt><dd><b>Mode:</b> JIT &amp; Probe<br>
 <b>O/S</b>: Linux, Windows &amp; OS X*<br>
 <b>CPU:</b> All<br>
 </dd></dl>
    </td>
  </tr>
</table>
<a class="anchor" name="g120a492f7568ec264080f5e3376f9d60"></a><!-- doxytag: member="LEVEL_BASE::REG_FullRegName" ref="g120a492f7568ec264080f5e3376f9d60" args="(const REG reg)" --><p>
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