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Diffstat (limited to 'testsuite/formal/abs/test_abs.vhd')
-rw-r--r-- | testsuite/formal/abs/test_abs.vhd | 37 |
1 files changed, 0 insertions, 37 deletions
diff --git a/testsuite/formal/abs/test_abs.vhd b/testsuite/formal/abs/test_abs.vhd deleted file mode 100644 index 3e711b2..0000000 --- a/testsuite/formal/abs/test_abs.vhd +++ /dev/null @@ -1,37 +0,0 @@ -library ieee; -use ieee.std_logic_1164.all; -use ieee.numeric_std.all; - -entity ent is - port ( - clk : in std_logic; - a : in signed(7 downto 0); - b : out signed(7 downto 0) - ); -end; - -architecture a of ent is -begin - process(clk) - begin - if rising_edge(clk) then - b <= abs a; - end if; - end process; - - formal: block - signal last_a : signed(7 downto 0); - signal has_run : std_logic := '0'; - begin - process(clk) - begin - if rising_edge(clk) then - has_run <= '1'; - last_a <= a; - end if; - end process; - - default clock is rising_edge(clk); - assert always has_run -> b >= 0 or (last_a = x"80" and last_a = b); - end block; -end; |