title: Create emulator-x86 Image on Android
body: <p>We all know ARM emulation is really slow. I just noticed a <code>emulator-x86</code> binary in tools/. I tried to run an image with it but I get an error saying I need an x86 image.</p>
  
  <p>I cannot find a way to create one using the <code>android</code> binary. Is there way?</p>