diff options
Diffstat (limited to 'testsuite/synth/dff03/tb_dff06.vhdl')
-rw-r--r-- | testsuite/synth/dff03/tb_dff06.vhdl | 63 |
1 files changed, 63 insertions, 0 deletions
diff --git a/testsuite/synth/dff03/tb_dff06.vhdl b/testsuite/synth/dff03/tb_dff06.vhdl new file mode 100644 index 000000000..2297a723f --- /dev/null +++ b/testsuite/synth/dff03/tb_dff06.vhdl @@ -0,0 +1,63 @@ +entity tb_dff06 is +end tb_dff06; + +library ieee; +use ieee.std_logic_1164.all; + +architecture behav of tb_dff06 is + signal clk : std_logic; + signal en1 : std_logic; + signal en2 : std_logic; + signal din : std_logic; + signal dout : std_logic; +begin + dut: entity work.dff06 + port map ( + q => dout, + d => din, + en1 => en1, + en2 => en2, + clk => clk); + + process + procedure pulse is + begin + clk <= '0'; + wait for 1 ns; + clk <= '1'; + wait for 1 ns; + end pulse; + begin + en1 <= '1'; + en2 <= '1'; + din <= '0'; + pulse; + assert dout = '0' severity failure; + + din <= '1'; + pulse; + assert dout = '1' severity failure; + + en1 <= '0'; + din <= '0'; + pulse; + assert dout = '1' severity failure; + + en1 <= '1'; + din <= '0'; + pulse; + assert dout = '0' severity failure; + + en2 <= '0'; + din <= '1'; + pulse; + assert dout = '0' severity failure; + + en2 <= '1'; + din <= '1'; + pulse; + assert dout = '1' severity failure; + + wait; + end process; +end behav; |