title: How to mask bytes in ARM assembly?
body: <p>i have got an 32bit (hexadecimal)word 0xaabbccdd and have to swap the 2. and the 3. byte. in the end it should look like 0xaaccbbdd</p>
  
  <p>how can i "mask" the 2nd and the 3rd byte to first load them up to register r1 and r2 and the swap them..
  i also know that i have to work with lsl and lsr commands but dont know how to start.</p>
  
  <p>sorry for my bad english.hope anyone could help me out!</p>
  
  <p>regards,
  sebastian</p>