>
<td>Valid</td>
<td>Valid</td>
<td>Subtract with borrow sign-extended <em>imm8 </em>from <em>r/m16.</em></td></tr>
<tr>
<td>83 /3 <em>ib</em></td>
<td>SBB <em>r/m32, imm8</em></td>
<td>MI</td>
<td>Valid</td>
<td>Valid</td>
<td>Subtract with borrow sign-extended <em>imm8 </em>from <em>r/m32.</em></td></tr>
<tr>
<td>REX.W + 83 /3 <em>ib</em></td>
<td>SBB <em>r/m64, imm8</em></td>
<td>MI</td>
<td>Valid</td>
<td>N.E.</td>
<td>Subtract with borrow sign-extended <em>imm8 </em>from <em>r/m64.</em></td></tr>
<tr>
