title: What's the difference between SRL and SRA?
body: <p>What changes when using the instruction <code>sra</code> and the <code>srl</code> one? I can't understand the difference between the two. The language in use is MIPS assembly.</p>
  
  <pre><code>sll $t1,$t0,2
  sra $t2,$t0,2
  
  sll $t1,$t0,2
  srl $t2,$t0,2
  </code></pre>