title: Why aren't the higher 16-bits in EAX accessible by name (like AX, AH and AL)?
body: <p>Why don't have a specific register to access this other part of register ( 16-32 )?</p>
  
  <p>Like <strong>ah</strong> or <strong>al</strong> to access a 8-bits part of <strong>ax</strong> register.</p>
  
  <p><img src="https://i.stack.imgur.com/WDwIo.png" alt="enter image description here"></p>