, Helvetica">if function unsuccessful<br>
<b>CF</b> set<br>
<b>AX</b> = error code</font></p>

<blockquote>
  <p><b><font size=-1 face="Verdana, Arial, Helvetica">0007h</font></b><font
   size=-1 face="Verdana, Arial, Helvetica"> - memory control blocks damaged<br>
  <b>0009h</b> - incorrect memory segment specified<br>
  <b>8022h</b> - invalid selector</font></blockquote>
</td></tr>
</table>
</center></p>

<p><b><font size=-1 face="Verdana, Arial, Helvetica">Notes:</font></b></p>

<blockquote>
  <p><font s