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entity tb_repro_sgn is
end tb_repro_sgn;
library ieee;
use ieee.std_logic_1164.all;
use ieee.numeric_std.all;
architecture behav of tb_repro_sgn is
signal clk : std_logic;
signal a : signed(7 downto 0);
signal b : signed(7 downto 0);
begin
dut: entity work.repro_sgn
port map (
clk => clk, a => a, b => b);
process
procedure pulse is
begin
clk <= '0';
wait for 1 ns;
clk <= '1';
wait for 1 ns;
end pulse;
begin
a <= x"ab";
pulse;
assert b = x"ab" severity failure;
a <= x"12";
pulse;
assert b = x"12" severity failure;
wait;
end process;
end behav;
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