entity o3p_fp is  

   port 
     (
i0 : in bit ;
i1 : in bit ;
i2 : in bit ;
no : inout bit ;
o : out bit ;
vdd : in bit ;
vss : in bit 
     );
   end o3p_fp ;

architecture FUNCTIONNAL of o3p_fp is 

begin
no <= not(i0 or i1 or i2) ;
o <= not no ;
end FUNCTIONNAL ;
