 I to I+Z at position X,Y</td></tr>
    <tr><td>E0NN</td> <td>SKP NN</td> <td>Skip if key NN is pressed</td></tr>
    <tr><td>E1NN</td> <td>SKN NN</td> <td>Skip if key NN is not pressed</td></tr>
    <tr><td>FX00</td> <td>LDK X</td> <td>Wait for a key to be pressed and put it in X</td></tr>
    <tr><td>FX01</td> <td>MEA X</td> <td>Add X to I (set flag F on overflow)</td></tr>
    <tr><td>FX02</td> <td>BCD X</td> <td>Put BCD representation of X in I,I+1,I+2</td></tr>
    <tr><td>FXY3</td> <td>DMP X,Y</td> <t