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entity tb_memmux05 is
end tb_memmux05;
library ieee;
use ieee.std_logic_1164.all;
use ieee.numeric_std.all;
architecture behav of tb_memmux05 is
signal ad : std_logic;
signal val : std_logic_vector (1 downto 0);
signal dat, res : std_logic_vector (2 downto 0);
begin
dut : entity work.memmux05
port map (
ad => ad,
val => val,
dat => dat,
res => res);
process
begin
dat <= "110";
ad <= '0';
val <= "00";
wait for 1 ns;
assert res = "100" report "1) res=" & to_bstring (res) severity failure;
ad <= '1';
val <= "00";
wait for 1 ns;
assert res = "000" report "2) res=" & to_bstring (res) severity failure;
ad <= '0';
val <= "01";
wait for 1 ns;
assert res = "101" report "3) res=" & to_bstring (res) severity failure;
ad <= '0';
val <= "10";
wait for 1 ns;
assert res = "110" report "4) res=" & to_bstring (res) severity failure;
ad <= '1';
val <= "10";
wait for 1 ns;
assert res = "100" report "5) res=" & to_bstring (res) severity failure;
dat <= "010";
ad <= '0';
val <= "00";
wait for 1 ns;
assert res = "000" report "6) res=" & to_bstring (res) severity failure;
ad <= '1';
val <= "00";
wait for 1 ns;
assert res = "000" report "7) res=" & to_bstring (res) severity failure;
ad <= '1';
val <= "10";
wait for 1 ns;
assert res = "100" report "8) res=" & to_bstring (res) severity failure;
wait;
end process;
end behav;
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