title: conv_integer in vhdl
body: <p>Does this look right?</p>
  
  <p><code>Lookup_table(conv_integer(128 - Position));</code> --Position is <code>std_logic_vector(7 downto 0)</code></p>
  
  <p>The reference page for the function <code>conv_integer</code> doesn't say if one can have two arguments operating in between the parenthesis as above. It does however return an integer if the argument is an integer. Any thoughts?</p>