239 lines
13 KiB
VHDL
239 lines
13 KiB
VHDL
library IEEE;
|
|
use IEEE.std_logic_1164.all;
|
|
|
|
-- A testbench has no ports.
|
|
entity ram8_tb is
|
|
end ram8_tb;
|
|
|
|
architecture ram8_tb_arch of ram8_tb is
|
|
-- Declaration of the component that will be instantiated.
|
|
component ram8
|
|
port (d : in std_logic_vector(15 downto 0);
|
|
load : in std_logic;
|
|
address : in std_logic_vector(2 downto 0);
|
|
clk : in std_logic;
|
|
cout : out std_logic_vector(15 downto 0));
|
|
end component;
|
|
-- Declaration of the clock
|
|
component Clock
|
|
port (finish : in std_logic;
|
|
cout : out std_logic);
|
|
end component;
|
|
|
|
-- Specifies which entity is bound with the component.
|
|
for ram8_0: ram8 use entity work.ram8;
|
|
signal d, cout : std_logic_vector(15 downto 0);
|
|
signal address : std_logic_vector(2 downto 0);
|
|
signal load, finish, clk : std_logic;
|
|
begin
|
|
-- Component instantiation.
|
|
OSC_CLK: Clock port map (finish, clk);
|
|
ram8_0: ram8 port map (d, load, address, clk, cout);
|
|
|
|
-- This process does the real job.
|
|
process
|
|
type pattern_type is record
|
|
-- The inputs of the ram8.
|
|
d : std_logic_vector(15 downto 0);
|
|
load : std_logic;
|
|
address : std_logic_vector(2 downto 0);
|
|
-- The output of the ram8.
|
|
cout : std_logic_vector(15 downto 0);
|
|
end record;
|
|
-- The patterns to apply.
|
|
type pattern_array is array (natural range <>) of pattern_type;
|
|
constant patterns : pattern_array :=
|
|
(("0000000000000000", '0', "000", "0000000000000000"),
|
|
("0000000000000000", '0', "000", "0000000000000000"),
|
|
("0000000000000000", '1', "000", "0000000000000000"),
|
|
("0000000000000000", '1', "000", "0000000000000000"),
|
|
("0010101101100111", '0', "000", "0000000000000000"),
|
|
("0010101101100111", '0', "000", "0000000000000000"),
|
|
("0010101101100111", '1', "001", "0000000000000000"),
|
|
("0010101101100111", '1', "001", "0010101101100111"),
|
|
("0010101101100111", '0', "000", "0000000000000000"),
|
|
("0010101101100111", '0', "000", "0000000000000000"),
|
|
("0000110100000101", '0', "011", "0000000000000000"),
|
|
("0000110100000101", '0', "011", "0000000000000000"),
|
|
("0000110100000101", '1', "011", "0000000000000000"),
|
|
("0000110100000101", '1', "011", "0000110100000101"),
|
|
("0000110100000101", '0', "011", "0000110100000101"),
|
|
("0000110100000101", '0', "011", "0000110100000101"),
|
|
("0000110100000101", '0', "001", "0010101101100111"),
|
|
("0001111001100001", '0', "001", "0010101101100111"),
|
|
("0001111001100001", '0', "001", "0010101101100111"),
|
|
("0001111001100001", '1', "111", "0000000000000000"),
|
|
("0001111001100001", '1', "111", "0001111001100001"),
|
|
("0001111001100001", '0', "111", "0001111001100001"),
|
|
("0001111001100001", '0', "111", "0001111001100001"),
|
|
("0001111001100001", '0', "011", "0000110100000101"),
|
|
("0001111001100001", '0', "111", "0001111001100001"),
|
|
("0001111001100001", '0', "000", "0000000000000000"),
|
|
("0001111001100001", '0', "000", "0000000000000000"),
|
|
("0001111001100001", '0', "001", "0010101101100111"),
|
|
("0001111001100001", '0', "010", "0000000000000000"),
|
|
("0001111001100001", '0', "011", "0000110100000101"),
|
|
("0001111001100001", '0', "100", "0000000000000000"),
|
|
("0001111001100001", '0', "101", "0000000000000000"),
|
|
("0001111001100001", '0', "110", "0000000000000000"),
|
|
("0001111001100001", '0', "111", "0001111001100001"),
|
|
("0101010101010101", '1', "000", "0000000000000000"),
|
|
("0101010101010101", '1', "000", "0101010101010101"),
|
|
("0101010101010101", '1', "001", "0010101101100111"),
|
|
("0101010101010101", '1', "001", "0101010101010101"),
|
|
("0101010101010101", '1', "010", "0000000000000000"),
|
|
("0101010101010101", '1', "010", "0101010101010101"),
|
|
("0101010101010101", '1', "011", "0000110100000101"),
|
|
("0101010101010101", '1', "011", "0101010101010101"),
|
|
("0101010101010101", '1', "100", "0000000000000000"),
|
|
("0101010101010101", '1', "100", "0101010101010101"),
|
|
("0101010101010101", '1', "101", "0000000000000000"),
|
|
("0101010101010101", '1', "101", "0101010101010101"),
|
|
("0101010101010101", '1', "110", "0000000000000000"),
|
|
("0101010101010101", '1', "110", "0101010101010101"),
|
|
("0101010101010101", '1', "111", "0001111001100001"),
|
|
("0101010101010101", '1', "111", "0101010101010101"),
|
|
("0101010101010101", '0', "000", "0101010101010101"),
|
|
("0101010101010101", '0', "000", "0101010101010101"),
|
|
("0101010101010101", '0', "001", "0101010101010101"),
|
|
("0101010101010101", '0', "010", "0101010101010101"),
|
|
("0101010101010101", '0', "011", "0101010101010101"),
|
|
("0101010101010101", '0', "100", "0101010101010101"),
|
|
("0101010101010101", '0', "101", "0101010101010101"),
|
|
("0101010101010101", '0', "110", "0101010101010101"),
|
|
("0101010101010101", '0', "111", "0101010101010101"),
|
|
("0101010101010110", '1', "000", "0101010101010101"),
|
|
("0101010101010110", '1', "000", "0101010101010110"),
|
|
("0101010101010110", '0', "000", "0101010101010110"),
|
|
("0101010101010110", '0', "000", "0101010101010110"),
|
|
("0101010101010110", '0', "001", "0101010101010101"),
|
|
("0101010101010110", '0', "010", "0101010101010101"),
|
|
("0101010101010110", '0', "011", "0101010101010101"),
|
|
("0101010101010110", '0', "100", "0101010101010101"),
|
|
("0101010101010110", '0', "101", "0101010101010101"),
|
|
("0101010101010110", '0', "110", "0101010101010101"),
|
|
("0101010101010110", '0', "111", "0101010101010101"),
|
|
("0101010101010101", '1', "000", "0101010101010110"),
|
|
("0101010101010101", '1', "000", "0101010101010101"),
|
|
("0101010101010110", '1', "001", "0101010101010101"),
|
|
("0101010101010110", '1', "001", "0101010101010110"),
|
|
("0101010101010110", '0', "000", "0101010101010101"),
|
|
("0101010101010110", '0', "000", "0101010101010101"),
|
|
("0101010101010110", '0', "001", "0101010101010110"),
|
|
("0101010101010110", '0', "010", "0101010101010101"),
|
|
("0101010101010110", '0', "011", "0101010101010101"),
|
|
("0101010101010110", '0', "100", "0101010101010101"),
|
|
("0101010101010110", '0', "101", "0101010101010101"),
|
|
("0101010101010110", '0', "110", "0101010101010101"),
|
|
("0101010101010110", '0', "111", "0101010101010101"),
|
|
("0101010101010101", '1', "001", "0101010101010110"),
|
|
("0101010101010101", '1', "001", "0101010101010101"),
|
|
("0101010101010110", '1', "010", "0101010101010101"),
|
|
("0101010101010110", '1', "010", "0101010101010110"),
|
|
("0101010101010110", '0', "000", "0101010101010101"),
|
|
("0101010101010110", '0', "000", "0101010101010101"),
|
|
("0101010101010110", '0', "001", "0101010101010101"),
|
|
("0101010101010110", '0', "010", "0101010101010110"),
|
|
("0101010101010110", '0', "011", "0101010101010101"),
|
|
("0101010101010110", '0', "100", "0101010101010101"),
|
|
("0101010101010110", '0', "101", "0101010101010101"),
|
|
("0101010101010110", '0', "110", "0101010101010101"),
|
|
("0101010101010110", '0', "111", "0101010101010101"),
|
|
("0101010101010101", '1', "010", "0101010101010110"),
|
|
("0101010101010101", '1', "010", "0101010101010101"),
|
|
("0101010101010110", '1', "011", "0101010101010101"),
|
|
("0101010101010110", '1', "011", "0101010101010110"),
|
|
("0101010101010110", '0', "000", "0101010101010101"),
|
|
("0101010101010110", '0', "000", "0101010101010101"),
|
|
("0101010101010110", '0', "001", "0101010101010101"),
|
|
("0101010101010110", '0', "010", "0101010101010101"),
|
|
("0101010101010110", '0', "011", "0101010101010110"),
|
|
("0101010101010110", '0', "100", "0101010101010101"),
|
|
("0101010101010110", '0', "101", "0101010101010101"),
|
|
("0101010101010110", '0', "110", "0101010101010101"),
|
|
("0101010101010110", '0', "111", "0101010101010101"),
|
|
("0101010101010101", '1', "011", "0101010101010110"),
|
|
("0101010101010101", '1', "011", "0101010101010101"),
|
|
("0101010101010110", '1', "100", "0101010101010101"),
|
|
("0101010101010110", '1', "100", "0101010101010110"),
|
|
("0101010101010110", '0', "000", "0101010101010101"),
|
|
("0101010101010110", '0', "000", "0101010101010101"),
|
|
("0101010101010110", '0', "001", "0101010101010101"),
|
|
("0101010101010110", '0', "010", "0101010101010101"),
|
|
("0101010101010110", '0', "011", "0101010101010101"),
|
|
("0101010101010110", '0', "100", "0101010101010110"),
|
|
("0101010101010110", '0', "101", "0101010101010101"),
|
|
("0101010101010110", '0', "110", "0101010101010101"),
|
|
("0101010101010110", '0', "111", "0101010101010101"),
|
|
("0101010101010101", '1', "100", "0101010101010110"),
|
|
("0101010101010101", '1', "100", "0101010101010101"),
|
|
("0101010101010110", '1', "101", "0101010101010101"),
|
|
("0101010101010110", '1', "101", "0101010101010110"),
|
|
("0101010101010110", '0', "000", "0101010101010101"),
|
|
("0101010101010110", '0', "000", "0101010101010101"),
|
|
("0101010101010110", '0', "001", "0101010101010101"),
|
|
("0101010101010110", '0', "010", "0101010101010101"),
|
|
("0101010101010110", '0', "011", "0101010101010101"),
|
|
("0101010101010110", '0', "100", "0101010101010101"),
|
|
("0101010101010110", '0', "101", "0101010101010110"),
|
|
("0101010101010110", '0', "110", "0101010101010101"),
|
|
("0101010101010110", '0', "111", "0101010101010101"),
|
|
("0101010101010101", '1', "101", "0101010101010110"),
|
|
("0101010101010101", '1', "101", "0101010101010101"),
|
|
("0101010101010110", '1', "110", "0101010101010101"),
|
|
("0101010101010110", '1', "110", "0101010101010110"),
|
|
("0101010101010110", '0', "000", "0101010101010101"),
|
|
("0101010101010110", '0', "000", "0101010101010101"),
|
|
("0101010101010110", '0', "001", "0101010101010101"),
|
|
("0101010101010110", '0', "010", "0101010101010101"),
|
|
("0101010101010110", '0', "011", "0101010101010101"),
|
|
("0101010101010110", '0', "100", "0101010101010101"),
|
|
("0101010101010110", '0', "101", "0101010101010101"),
|
|
("0101010101010110", '0', "110", "0101010101010110"),
|
|
("0101010101010110", '0', "111", "0101010101010101"),
|
|
("0101010101010101", '1', "110", "0101010101010110"),
|
|
("0101010101010101", '1', "110", "0101010101010101"),
|
|
("0101010101010110", '1', "111", "0101010101010101"),
|
|
("0101010101010110", '1', "111", "0101010101010110"),
|
|
("0101010101010110", '0', "000", "0101010101010101"),
|
|
("0101010101010110", '0', "000", "0101010101010101"),
|
|
("0101010101010110", '0', "001", "0101010101010101"),
|
|
("0101010101010110", '0', "010", "0101010101010101"),
|
|
("0101010101010110", '0', "011", "0101010101010101"),
|
|
("0101010101010110", '0', "100", "0101010101010101"),
|
|
("0101010101010110", '0', "101", "0101010101010101"),
|
|
("0101010101010110", '0', "110", "0101010101010101"),
|
|
("0101010101010110", '0', "111", "0101010101010110"),
|
|
("0101010101010101", '1', "111", "0101010101010110"),
|
|
("0101010101010101", '1', "111", "0101010101010101"),
|
|
("0101010101010101", '0', "000", "0101010101010101"),
|
|
("0101010101010101", '0', "000", "0101010101010101"),
|
|
("0101010101010101", '0', "001", "0101010101010101"),
|
|
("0101010101010101", '0', "010", "0101010101010101"),
|
|
("0101010101010101", '0', "011", "0101010101010101"),
|
|
("0101010101010101", '0', "100", "0101010101010101"),
|
|
("0101010101010101", '0', "101", "0101010101010101"),
|
|
("0101010101010101", '0', "110", "0101010101010101"),
|
|
("0101010101010101", '0', "111", "0101010101010101"));
|
|
|
|
begin
|
|
-- Check each pattern.
|
|
for i in patterns'range loop
|
|
-- Set the inputs.
|
|
d <= patterns(i).d;
|
|
load <= patterns(i).load;
|
|
address <= patterns(i).address;
|
|
wait for 0.25 ns;
|
|
-- Check the outputs.
|
|
assert cout = patterns(i).cout
|
|
report "bad data, memory problem" severity error;
|
|
wait for 0.75 ns;
|
|
end loop;
|
|
-- End the clock
|
|
finish <= '1';
|
|
assert false report "end of test" severity note;
|
|
-- Wait forever; this will finish the simulation.
|
|
wait;
|
|
end process;
|
|
end ram8_tb_arch;
|