. (Blocking Operation. All instruction halted until next key event);</td></tr>
	<tr><td>FX15</td><td>Timer</td><td>delay_timer(Vx)</td><td>Sets the delay timer to VX.</td></tr>
	<tr><td>FX18</td><td>Sound</td><td>sound_timer(Vx)</td><td>Sets the sound timer to VX.</td></tr>
	<tr><td>FX1E</td><td rowspan="2">MEM</td><td>I += Vx</td><td>Adds VX to I. VF is not affected.[c]</td></tr>
	<tr><td>FX29</td><td>I = sprite_addr[Vx]</td><td>Sets I to the location of the sprite for the character in VX. Characters 0-F (