diff options
Diffstat (limited to 'testsuite/synth/arr02/tb_arr03.vhdl')
-rw-r--r-- | testsuite/synth/arr02/tb_arr03.vhdl | 49 |
1 files changed, 49 insertions, 0 deletions
diff --git a/testsuite/synth/arr02/tb_arr03.vhdl b/testsuite/synth/arr02/tb_arr03.vhdl new file mode 100644 index 000000000..fa57c0756 --- /dev/null +++ b/testsuite/synth/arr02/tb_arr03.vhdl @@ -0,0 +1,49 @@ +entity tb_arr03 is +end tb_arr03; + +library ieee; +use ieee.std_logic_1164.all; + +architecture behav of tb_arr03 is + signal a : std_logic_vector (31 downto 0); + signal sel : natural range 0 to 3; + signal clk : std_logic; + signal res : std_logic_vector (3 downto 0); +begin + dut: entity work.arr03 + port map (a, sel, clk, res); + + process + procedure pulse is + begin + clk <= '0'; + wait for 1 ns; + clk <= '1'; + wait for 1 ns; + end pulse; + begin + a <= x"a1b2c3d4"; + sel <= 0; + pulse; + pulse; + assert res = b"0100" severity failure; + + sel <= 1; + pulse; + assert res = b"0100" severity failure; + + sel <= 2; + pulse; + assert res = b"0110" severity failure; + + sel <= 3; + pulse; + assert res = b"1000" severity failure; + + sel <= 0; + pulse; + assert res = b"1010" severity failure; + + wait; + end process; +end behav; |