title: Adding packed bytes/words using MMX instructions
body: <p>So let's say that we have two registers that contain the following hexadecimal
  values: <code>AB0890C2</code>, <code>4598EE50</code>. What would be the result of adding them using MMX
  instructions:</p>
  
  <pre><code>a. for packed byte
  b. for packed word
  </code></pre>
  
  <p>Assuming saturation arithmetic is not used?</p>
  
  <p>From my understanding, if you add the two hex values normally, you get <code>F0A17F12</code>, but how would I add this using MMX instruction for both the packed byte and word?</p>