entity ch_09_02 is end entity ch_09_02; ---------------------------------------------------------------- architecture test of ch_09_02 is begin process_09_2_a : process is -- code from book: alias binary_string is bit_vector; variable s1, s2 : binary_string(0 to 7); -- . . . -- end of code from book begin s1 := "10101010"; s2 := "11110000"; -- code from book: s1 := s1 and not s2; -- end of code from book wait; end process process_09_2_a; 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>