diff options
Diffstat (limited to 'testsuite/synth/var01/tb_var03.vhdl')
-rw-r--r-- | testsuite/synth/var01/tb_var03.vhdl | 42 |
1 files changed, 42 insertions, 0 deletions
diff --git a/testsuite/synth/var01/tb_var03.vhdl b/testsuite/synth/var01/tb_var03.vhdl new file mode 100644 index 000000000..f5715abe7 --- /dev/null +++ b/testsuite/synth/var01/tb_var03.vhdl @@ -0,0 +1,42 @@ +entity tb_var03 is +end tb_var03; + +library ieee; +use ieee.std_logic_1164.all; + +architecture behav of tb_var03 is + signal clk : std_logic; + signal mask : std_logic_vector (1 downto 0); + signal a, b : std_logic_vector (15 downto 0); + signal res : std_logic_vector (15 downto 0); +begin + dut: entity work.var03 + port map ( + mask => mask, + a => a, + b => b, + res => res); + + process + begin + mask <= "11"; + a <= x"12_34"; + b <= x"aa_bb"; + wait for 1 ns; + assert res = x"aa_bb" severity failure; + + mask <= "00"; + a <= x"aa_bb"; + b <= x"12_34"; + wait for 1 ns; + assert res = x"aa_bb" severity failure; + + mask <= "10"; + a <= x"aa_bb"; + b <= x"12_34"; + wait for 1 ns; + assert res = x"12_bb" severity failure; + + wait; + end process; +end behav; |