d>
<td>Valid</td>
<td>Valid</td>
<td>Add <em>m64fp</em> to ST(0) and store result in ST(0).</td></tr>
<tr>
<td>D8 C0+i</td>
<td>FADD ST(0), ST(i)</td>
<td>Valid</td>
<td>Valid</td>
<td>Add ST(0) to ST(i) and store result in ST(0).</td></tr>
<tr>
<td>DC C0+i</td>
<td>FADD ST(i), ST(0)</td>
<td>Valid</td>
<td>Valid</td>
<td>Add ST(i) to ST(0) and store result in ST(i).</td></tr>
<tr>
<td>DE C0+i</td>
<td>FADDP ST(i), ST(0)</td>
<td>Valid</td>
<td>Valid</td>
<td>Add ST(0) to ST(i), store result in ST(i), and p