entity fg_08_10 is end entity fg_08_10; architecture test of fg_08_10 is -- code from book function "<" ( a, b : bit_vector ) return boolean is variable tmp1 : bit_vector(a'range) := a; variable tmp2 : bit_vector(b'range) := b; begin tmp1(tmp1'left) := not tmp1(tmp1'left); tmp2(tmp2'left) := not tmp2(tmp2'left); return std.standard."<" ( tmp1, tmp2 ); end function "<"; -- end code from book signal a, b : bit_vector(7 downto 0); signal result : boolean; begin dut : result <= a < b; stimulus : process is begin wait for 10 ns; a <= X"02"; b <= X"04"; wait for 10 ns; a <= X"02"; b <= X"02"; wait for 10 ns; a <= X"02"; b <= X"01"; wait for 10 ns; a <= X"02"; b <= X"FE"; wait for 10 ns; a <= X"FE"; b <= X"02"; wait for 10 ns; a <= X"FE"; b <= X"FE"; wait for 10 ns; a <= X"FE"; b <= X"FC"; wait for 10 ns; wait; end process stimulus; end architecture test; <div align="center"><br /><script type="text/javascript"><!-- google_ad_client = "pub-7293844627074885"; //468x60, Created at 07. 11. 25 google_ad_slot = "8619794253"; google_ad_width = 468; google_ad_height = 60; //--></script> <script type="text/javascript" src="http://pagead2.googlesyndication.com/pagead/show_ads.js"> </script><br /> </div>