USE work.multiplier_types.all;


ENTITY and_word IS
  PORT ( a :  in  bit;
         b :  in  word;
         z :  out word);
END and_word;


ARCHITECTURE behaviour OF and_word IS

BEGIN  --  behaviour 
  
  z <= b WHEN a = '1'
       ELSE
         word'(others => '0');
         
END behaviour;