diff options
Diffstat (limited to 'tests/sva/vhdlpsl00.vhd')
-rw-r--r-- | tests/sva/vhdlpsl00.vhd | 34 |
1 files changed, 0 insertions, 34 deletions
diff --git a/tests/sva/vhdlpsl00.vhd b/tests/sva/vhdlpsl00.vhd deleted file mode 100644 index 6d765d5a9..000000000 --- a/tests/sva/vhdlpsl00.vhd +++ /dev/null @@ -1,34 +0,0 @@ -library ieee; -use ieee.std_logic_1164.all; -use ieee.std_logic_unsigned.all; -use ieee.numeric_std.all; - -entity top is - port ( - clk : in std_logic; - rst : in std_logic; - up : in std_logic; - down : in std_logic; - cnt : buffer std_logic_vector(7 downto 0) - ); -end entity; - -architecture rtl of top is -begin - process (clk) begin - if rising_edge(clk) then - if rst = '1' then - cnt <= std_logic_vector(to_unsigned(0, 8)); - elsif up = '1' then - cnt <= cnt + std_logic_vector(to_unsigned(1, 8)); - elsif down = '1' then - cnt <= cnt - std_logic_vector(to_unsigned(1, 8)); - end if; - end if; - end process; - - -- PSL default clock is (rising_edge(clk)); - -- PSL assume always ( down -> not up ); - -- PSL assert always ( up |=> (cnt = prev(cnt) + std_logic_vector(to_unsigned(1, 8))) ) abort rst = '1'; - -- PSL assert always ( down |=> (cnt = prev(cnt) - std_logic_vector(to_unsigned(1, 8))) ) abort rst = '1'; -end architecture; |