diff options
Diffstat (limited to 'testsuite/synth/var01/tb_var05.vhdl')
-rw-r--r-- | testsuite/synth/var01/tb_var05.vhdl | 48 |
1 files changed, 48 insertions, 0 deletions
diff --git a/testsuite/synth/var01/tb_var05.vhdl b/testsuite/synth/var01/tb_var05.vhdl new file mode 100644 index 000000000..63d42bc12 --- /dev/null +++ b/testsuite/synth/var01/tb_var05.vhdl @@ -0,0 +1,48 @@ +entity tb_var05 is +end tb_var05; + +library ieee; +use ieee.std_logic_1164.all; + +architecture behav of tb_var05 is + signal clk : std_logic; + signal sel : std_logic; + signal a, b : std_logic_vector (1 downto 0); + signal res : std_logic_vector (1 downto 0); +begin + dut: entity work.var05 + port map ( + sel => sel, + a => a, + b => b, + res => res); + + process + begin + sel <= '1'; + a <= "00"; + b <= "11"; + wait for 1 ns; + assert res = "11" severity failure; + + sel <= '0'; + a <= "00"; + b <= "11"; + wait for 1 ns; + assert res = "00" severity failure; + + sel <= '0'; + a <= "10"; + b <= "01"; + wait for 1 ns; + assert res = "10" severity failure; + + sel <= '1'; + a <= "10"; + b <= "01"; + wait for 1 ns; + assert res = "01" severity failure; + + wait; + end process; +end behav; |