title: Why cant 'and' have such operands in this context?
body: <p>I am using Xilinx and trying to compile this code.
  I am getting this error:
  <strong>ERROR:HDLParsers:808 - &quot;C:/Users/Dell/digi/sm.vhd&quot; Line xx. and can not have such operands in this context.</strong>
  <a href="http://pastebin.com/JSmaE5dj" rel="nofollow noreferrer">code is here</a></p>