386 lines
24 KiB
VHDL
386 lines
24 KiB
VHDL
library IEEE;
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use IEEE.std_logic_1164.all;
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-- A testbench has no ports.
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entity ram4k_tb is
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end ram4k_tb;
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architecture ram4k_tb_arch of ram4k_tb is
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-- Declaration of the component that will be instantiated.
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component ram4k
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port (d : in std_logic_vector(15 downto 0);
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load : in std_logic;
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address : in std_logic_vector(11 downto 0);
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clk : in std_logic;
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cout : out std_logic_vector(15 downto 0));
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end component;
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-- Declaration of the clock
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component Clock
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port (finish : in std_logic;
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cout : out std_logic);
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end component;
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-- Specifies which entity is bound with the component.
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for ram4k_0: ram4k use entity work.ram4k;
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signal d, cout : std_logic_vector(15 downto 0);
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signal address : std_logic_vector(11 downto 0);
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signal load, finish, clk : std_logic;
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begin
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-- Component instantiation.
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OSC_CLK: Clock port map (finish, clk);
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ram4k_0: ram4k port map (d, load, address, clk, cout);
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-- This process does the real job.
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process
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type pattern_type is record
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-- The inputs of the ram4k.
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d : std_logic_vector(15 downto 0);
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load : std_logic;
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address : std_logic_vector(11 downto 0);
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-- The output of the ram4k.
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cout : std_logic_vector(15 downto 0);
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end record;
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-- The patterns to apply.
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type pattern_array is array (natural range <>) of pattern_type;
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constant patterns : pattern_array :=
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(("0000000000000000", '0', "000000000000", "0000000000000000"),
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("0000000000000000", '0', "000000000000", "0000000000000000"),
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("0000000000000000", '1', "000000000000", "0000000000000000"),
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("0000000000000000", '1', "000000000000", "0000000000000000"),
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("0000010001010111", '0', "000000000000", "0000000000000000"),
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("0000010001010111", '0', "000000000000", "0000000000000000"),
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("0000010001010111", '1', "010001010111", "0000000000000000"),
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("0000010001010111", '1', "010001010111", "0000010001010111"),
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("0000010001010111", '0', "000000000000", "0000000000000000"),
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("0000010001010111", '0', "000000000000", "0000000000000000"),
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("0000110110111001", '0', "110110111001", "0000000000000000"),
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("0000110110111001", '0', "110110111001", "0000000000000000"),
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("0000110110111001", '1', "110110111001", "0000000000000000"),
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("0000110110111001", '1', "110110111001", "0000110110111001"),
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("0000110110111001", '0', "110110111001", "0000110110111001"),
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("0000110110111001", '0', "110110111001", "0000110110111001"),
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("0000110110111001", '0', "010001010111", "0000010001010111"),
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("0000111111111111", '0', "010001010111", "0000010001010111"),
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("0000111111111111", '0', "010001010111", "0000010001010111"),
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("0000111111111111", '1', "111111111111", "0000000000000000"),
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("0000111111111111", '1', "111111111111", "0000111111111111"),
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("0000111111111111", '0', "111111111111", "0000111111111111"),
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("0000111111111111", '0', "111111111111", "0000111111111111"),
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("0000111111111111", '0', "110110111001", "0000110110111001"),
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("0000111111111111", '0', "111111111111", "0000111111111111"),
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("0000111111111111", '0', "101010101000", "0000000000000000"),
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("0000111111111111", '0', "101010101000", "0000000000000000"),
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("0000111111111111", '0', "101010101001", "0000000000000000"),
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("0000111111111111", '0', "101010101010", "0000000000000000"),
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("0000111111111111", '0', "101010101011", "0000000000000000"),
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("0000111111111111", '0', "101010101100", "0000000000000000"),
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("0000111111111111", '0', "101010101101", "0000000000000000"),
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("0000111111111111", '0', "101010101110", "0000000000000000"),
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("0000111111111111", '0', "101010101111", "0000000000000000"),
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("0101010101010101", '1', "101010101000", "0000000000000000"),
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("0101010101010101", '1', "101010101000", "0101010101010101"),
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("0101010101010101", '1', "101010101001", "0000000000000000"),
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("0101010101010101", '1', "101010101001", "0101010101010101"),
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("0101010101010101", '1', "101010101010", "0000000000000000"),
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("0101010101010101", '1', "101010101010", "0101010101010101"),
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("0101010101010101", '1', "101010101011", "0000000000000000"),
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("0101010101010101", '1', "101010101011", "0101010101010101"),
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("0101010101010101", '1', "101010101100", "0000000000000000"),
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("0101010101010101", '1', "101010101100", "0101010101010101"),
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("0101010101010101", '1', "101010101101", "0000000000000000"),
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("0101010101010101", '1', "101010101101", "0101010101010101"),
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("0101010101010101", '1', "101010101110", "0000000000000000"),
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("0101010101010101", '1', "101010101110", "0101010101010101"),
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("0101010101010101", '1', "101010101111", "0000000000000000"),
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("0101010101010101", '1', "101010101111", "0101010101010101"),
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("0101010101010101", '0', "101010101000", "0101010101010101"),
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("0101010101010101", '0', "101010101000", "0101010101010101"),
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("0101010101010101", '0', "101010101001", "0101010101010101"),
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("0101010101010101", '0', "101010101010", "0101010101010101"),
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("0101010101010101", '0', "101010101011", "0101010101010101"),
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("0101010101010101", '0', "101010101100", "0101010101010101"),
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("0101010101010101", '0', "101010101101", "0101010101010101"),
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("0101010101010101", '0', "101010101110", "0101010101010101"),
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("0101010101010101", '0', "101010101111", "0101010101010101"),
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("0101010101010110", '1', "101010101000", "0101010101010101"),
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("0101010101010110", '1', "101010101000", "0101010101010110"),
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("0101010101010110", '0', "101010101000", "0101010101010110"),
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("0101010101010110", '0', "101010101000", "0101010101010110"),
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("0101010101010110", '0', "101010101001", "0101010101010101"),
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("0101010101010110", '0', "101010101010", "0101010101010101"),
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("0101010101010110", '0', "101010101011", "0101010101010101"),
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("0101010101010110", '0', "101010101100", "0101010101010101"),
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("0101010101010110", '0', "101010101101", "0101010101010101"),
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("0101010101010110", '0', "101010101110", "0101010101010101"),
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("0101010101010110", '0', "101010101111", "0101010101010101"),
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("0101010101010101", '1', "101010101000", "0101010101010110"),
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("0101010101010101", '1', "101010101000", "0101010101010101"),
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("0101010101010110", '1', "101010101001", "0101010101010101"),
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("0101010101010110", '1', "101010101001", "0101010101010110"),
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("0101010101010110", '0', "101010101000", "0101010101010101"),
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("0101010101010110", '0', "101010101000", "0101010101010101"),
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("0101010101010110", '0', "101010101001", "0101010101010110"),
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("0101010101010110", '0', "101010101010", "0101010101010101"),
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("0101010101010110", '0', "101010101011", "0101010101010101"),
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("0101010101010110", '0', "101010101100", "0101010101010101"),
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("0101010101010110", '0', "101010101101", "0101010101010101"),
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("0101010101010110", '0', "101010101110", "0101010101010101"),
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("0101010101010110", '0', "101010101111", "0101010101010101"),
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("0101010101010101", '1', "101010101001", "0101010101010110"),
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("0101010101010101", '1', "101010101001", "0101010101010101"),
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("0101010101010110", '1', "101010101010", "0101010101010101"),
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("0101010101010110", '1', "101010101010", "0101010101010110"),
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("0101010101010110", '0', "101010101000", "0101010101010101"),
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("0101010101010110", '0', "101010101000", "0101010101010101"),
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("0101010101010110", '0', "101010101001", "0101010101010101"),
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("0101010101010110", '0', "101010101010", "0101010101010110"),
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("0101010101010110", '0', "101010101011", "0101010101010101"),
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("0101010101010110", '0', "101010101100", "0101010101010101"),
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("0101010101010110", '0', "101010101101", "0101010101010101"),
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("0101010101010110", '0', "101010101110", "0101010101010101"),
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("0101010101010110", '0', "101010101111", "0101010101010101"),
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("0101010101010101", '1', "101010101010", "0101010101010110"),
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("0101010101010101", '1', "101010101010", "0101010101010101"),
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("0101010101010110", '1', "101010101011", "0101010101010101"),
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("0101010101010110", '1', "101010101011", "0101010101010110"),
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("0101010101010110", '0', "101010101000", "0101010101010101"),
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("0101010101010110", '0', "101010101000", "0101010101010101"),
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("0101010101010110", '0', "101010101001", "0101010101010101"),
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("0101010101010110", '0', "101010101010", "0101010101010101"),
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("0101010101010110", '0', "101010101011", "0101010101010110"),
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("0101010101010110", '0', "101010101100", "0101010101010101"),
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("0101010101010110", '0', "101010101101", "0101010101010101"),
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("0101010101010110", '0', "101010101110", "0101010101010101"),
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("0101010101010110", '0', "101010101111", "0101010101010101"),
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("0101010101010101", '1', "101010101011", "0101010101010110"),
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("0101010101010101", '1', "101010101011", "0101010101010101"),
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("0101010101010110", '1', "101010101100", "0101010101010101"),
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("0101010101010110", '1', "101010101100", "0101010101010110"),
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("0101010101010110", '0', "101010101000", "0101010101010101"),
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("0101010101010110", '0', "101010101000", "0101010101010101"),
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("0101010101010110", '0', "101010101001", "0101010101010101"),
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("0101010101010110", '0', "101010101010", "0101010101010101"),
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("0101010101010110", '0', "101010101011", "0101010101010101"),
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("0101010101010110", '0', "101010101100", "0101010101010110"),
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("0101010101010110", '0', "101010101101", "0101010101010101"),
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("0101010101010110", '0', "101010101110", "0101010101010101"),
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("0101010101010110", '0', "101010101111", "0101010101010101"),
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("0101010101010101", '1', "101010101100", "0101010101010110"),
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("0101010101010101", '1', "101010101100", "0101010101010101"),
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("0101010101010110", '1', "101010101101", "0101010101010101"),
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("0101010101010110", '1', "101010101101", "0101010101010110"),
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("0101010101010110", '0', "101010101000", "0101010101010101"),
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("0101010101010110", '0', "101010101000", "0101010101010101"),
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("0101010101010110", '0', "101010101001", "0101010101010101"),
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("0101010101010110", '0', "101010101010", "0101010101010101"),
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("0101010101010110", '0', "101010101011", "0101010101010101"),
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("0101010101010110", '0', "101010101100", "0101010101010101"),
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("0101010101010110", '0', "101010101101", "0101010101010110"),
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("0101010101010110", '0', "101010101110", "0101010101010101"),
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("0101010101010110", '0', "101010101111", "0101010101010101"),
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("0101010101010101", '1', "101010101101", "0101010101010110"),
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("0101010101010101", '1', "101010101101", "0101010101010101"),
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("0101010101010110", '1', "101010101110", "0101010101010101"),
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("0101010101010110", '1', "101010101110", "0101010101010110"),
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("0101010101010110", '0', "101010101000", "0101010101010101"),
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("0101010101010110", '0', "101010101000", "0101010101010101"),
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("0101010101010110", '0', "101010101001", "0101010101010101"),
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("0101010101010110", '0', "101010101010", "0101010101010101"),
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("0101010101010110", '0', "101010101011", "0101010101010101"),
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("0101010101010110", '0', "101010101100", "0101010101010101"),
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("0101010101010110", '0', "101010101101", "0101010101010101"),
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("0101010101010110", '0', "101010101110", "0101010101010110"),
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("0101010101010110", '0', "101010101111", "0101010101010101"),
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("0101010101010101", '1', "101010101110", "0101010101010110"),
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("0101010101010101", '1', "101010101110", "0101010101010101"),
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("0101010101010110", '1', "101010101111", "0101010101010101"),
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("0101010101010110", '1', "101010101111", "0101010101010110"),
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("0101010101010110", '0', "101010101000", "0101010101010101"),
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("0101010101010110", '0', "101010101000", "0101010101010101"),
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("0101010101010110", '0', "101010101001", "0101010101010101"),
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("0101010101010110", '0', "101010101010", "0101010101010101"),
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("0101010101010110", '0', "101010101011", "0101010101010101"),
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("0101010101010110", '0', "101010101100", "0101010101010101"),
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("0101010101010110", '0', "101010101101", "0101010101010101"),
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("0101010101010110", '0', "101010101110", "0101010101010101"),
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("0101010101010110", '0', "101010101111", "0101010101010110"),
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("0101010101010101", '1', "101010101111", "0101010101010110"),
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("0101010101010101", '1', "101010101111", "0101010101010101"),
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("0101010101010101", '0', "101010101000", "0101010101010101"),
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("0101010101010101", '0', "101010101000", "0101010101010101"),
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("0101010101010101", '0', "101010101001", "0101010101010101"),
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("0101010101010101", '0', "101010101010", "0101010101010101"),
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("0101010101010101", '0', "101010101011", "0101010101010101"),
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("0101010101010101", '0', "101010101100", "0101010101010101"),
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("0101010101010101", '0', "101010101101", "0101010101010101"),
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("0101010101010101", '0', "101010101110", "0101010101010101"),
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("0101010101010101", '0', "101010101111", "0101010101010101"),
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("0101010101010101", '0', "000101010101", "0000000000000000"),
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("0101010101010101", '0', "000101010101", "0000000000000000"),
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("0101010101010101", '0', "001101010101", "0000000000000000"),
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("0101010101010101", '0', "010101010101", "0000000000000000"),
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("0101010101010101", '0', "011101010101", "0000000000000000"),
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("0101010101010101", '0', "100101010101", "0000000000000000"),
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("0101010101010101", '0', "101101010101", "0000000000000000"),
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("0101010101010101", '0', "110101010101", "0000000000000000"),
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("0101010101010101", '0', "111101010101", "0000000000000000"),
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("0101010101010101", '1', "000101010101", "0000000000000000"),
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("0101010101010101", '1', "000101010101", "0101010101010101"),
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("0101010101010101", '1', "001101010101", "0000000000000000"),
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("0101010101010101", '1', "001101010101", "0101010101010101"),
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("0101010101010101", '1', "010101010101", "0000000000000000"),
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("0101010101010101", '1', "010101010101", "0101010101010101"),
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("0101010101010101", '1', "011101010101", "0000000000000000"),
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("0101010101010101", '1', "011101010101", "0101010101010101"),
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("0101010101010101", '1', "100101010101", "0000000000000000"),
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("0101010101010101", '1', "100101010101", "0101010101010101"),
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("0101010101010101", '1', "101101010101", "0000000000000000"),
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("0101010101010101", '1', "101101010101", "0101010101010101"),
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("0101010101010101", '1', "110101010101", "0000000000000000"),
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("0101010101010101", '1', "110101010101", "0101010101010101"),
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("0101010101010101", '1', "111101010101", "0000000000000000"),
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("0101010101010101", '1', "111101010101", "0101010101010101"),
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("0101010101010101", '0', "000101010101", "0101010101010101"),
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("0101010101010101", '0', "000101010101", "0101010101010101"),
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("0101010101010101", '0', "001101010101", "0101010101010101"),
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("0101010101010101", '0', "010101010101", "0101010101010101"),
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("0101010101010101", '0', "011101010101", "0101010101010101"),
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("0101010101010101", '0', "100101010101", "0101010101010101"),
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("0101010101010101", '0', "101101010101", "0101010101010101"),
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("0101010101010101", '0', "110101010101", "0101010101010101"),
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("0101010101010101", '0', "111101010101", "0101010101010101"),
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("0101010101010110", '1', "000101010101", "0101010101010101"),
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("0101010101010110", '1', "000101010101", "0101010101010110"),
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("0101010101010110", '0', "000101010101", "0101010101010110"),
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("0101010101010110", '0', "000101010101", "0101010101010110"),
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("0101010101010110", '0', "001101010101", "0101010101010101"),
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("0101010101010110", '0', "010101010101", "0101010101010101"),
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("0101010101010110", '0', "011101010101", "0101010101010101"),
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("0101010101010110", '0', "100101010101", "0101010101010101"),
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("0101010101010110", '0', "101101010101", "0101010101010101"),
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("0101010101010110", '0', "110101010101", "0101010101010101"),
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("0101010101010110", '0', "111101010101", "0101010101010101"),
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("0101010101010101", '1', "000101010101", "0101010101010110"),
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("0101010101010101", '1', "000101010101", "0101010101010101"),
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("0101010101010110", '1', "001101010101", "0101010101010101"),
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("0101010101010110", '1', "001101010101", "0101010101010110"),
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("0101010101010110", '0', "000101010101", "0101010101010101"),
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("0101010101010110", '0', "000101010101", "0101010101010101"),
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("0101010101010110", '0', "001101010101", "0101010101010110"),
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("0101010101010110", '0', "010101010101", "0101010101010101"),
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("0101010101010110", '0', "011101010101", "0101010101010101"),
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("0101010101010110", '0', "100101010101", "0101010101010101"),
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("0101010101010110", '0', "101101010101", "0101010101010101"),
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("0101010101010110", '0', "110101010101", "0101010101010101"),
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("0101010101010110", '0', "111101010101", "0101010101010101"),
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("0101010101010101", '1', "001101010101", "0101010101010110"),
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("0101010101010101", '1', "001101010101", "0101010101010101"),
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("0101010101010110", '1', "010101010101", "0101010101010101"),
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("0101010101010110", '1', "010101010101", "0101010101010110"),
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("0101010101010110", '0', "000101010101", "0101010101010101"),
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("0101010101010110", '0', "000101010101", "0101010101010101"),
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("0101010101010110", '0', "001101010101", "0101010101010101"),
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("0101010101010110", '0', "010101010101", "0101010101010110"),
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("0101010101010110", '0', "011101010101", "0101010101010101"),
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("0101010101010110", '0', "100101010101", "0101010101010101"),
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("0101010101010110", '0', "101101010101", "0101010101010101"),
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("0101010101010110", '0', "110101010101", "0101010101010101"),
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("0101010101010110", '0', "111101010101", "0101010101010101"),
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("0101010101010101", '1', "010101010101", "0101010101010110"),
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("0101010101010101", '1', "010101010101", "0101010101010101"),
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("0101010101010110", '1', "011101010101", "0101010101010101"),
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("0101010101010110", '1', "011101010101", "0101010101010110"),
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("0101010101010110", '0', "000101010101", "0101010101010101"),
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("0101010101010110", '0', "000101010101", "0101010101010101"),
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("0101010101010110", '0', "001101010101", "0101010101010101"),
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("0101010101010110", '0', "010101010101", "0101010101010101"),
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("0101010101010110", '0', "011101010101", "0101010101010110"),
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("0101010101010110", '0', "100101010101", "0101010101010101"),
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("0101010101010110", '0', "101101010101", "0101010101010101"),
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("0101010101010110", '0', "110101010101", "0101010101010101"),
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("0101010101010110", '0', "111101010101", "0101010101010101"),
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("0101010101010101", '1', "011101010101", "0101010101010110"),
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("0101010101010101", '1', "011101010101", "0101010101010101"),
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("0101010101010110", '1', "100101010101", "0101010101010101"),
|
|
("0101010101010110", '1', "100101010101", "0101010101010110"),
|
|
("0101010101010110", '0', "000101010101", "0101010101010101"),
|
|
("0101010101010110", '0', "000101010101", "0101010101010101"),
|
|
("0101010101010110", '0', "001101010101", "0101010101010101"),
|
|
("0101010101010110", '0', "010101010101", "0101010101010101"),
|
|
("0101010101010110", '0', "011101010101", "0101010101010101"),
|
|
("0101010101010110", '0', "100101010101", "0101010101010110"),
|
|
("0101010101010110", '0', "101101010101", "0101010101010101"),
|
|
("0101010101010110", '0', "110101010101", "0101010101010101"),
|
|
("0101010101010110", '0', "111101010101", "0101010101010101"),
|
|
("0101010101010101", '1', "100101010101", "0101010101010110"),
|
|
("0101010101010101", '1', "100101010101", "0101010101010101"),
|
|
("0101010101010110", '1', "101101010101", "0101010101010101"),
|
|
("0101010101010110", '1', "101101010101", "0101010101010110"),
|
|
("0101010101010110", '0', "000101010101", "0101010101010101"),
|
|
("0101010101010110", '0', "000101010101", "0101010101010101"),
|
|
("0101010101010110", '0', "001101010101", "0101010101010101"),
|
|
("0101010101010110", '0', "010101010101", "0101010101010101"),
|
|
("0101010101010110", '0', "011101010101", "0101010101010101"),
|
|
("0101010101010110", '0', "100101010101", "0101010101010101"),
|
|
("0101010101010110", '0', "101101010101", "0101010101010110"),
|
|
("0101010101010110", '0', "110101010101", "0101010101010101"),
|
|
("0101010101010110", '0', "111101010101", "0101010101010101"),
|
|
("0101010101010101", '1', "101101010101", "0101010101010110"),
|
|
("0101010101010101", '1', "101101010101", "0101010101010101"),
|
|
("0101010101010110", '1', "110101010101", "0101010101010101"),
|
|
("0101010101010110", '1', "110101010101", "0101010101010110"),
|
|
("0101010101010110", '0', "000101010101", "0101010101010101"),
|
|
("0101010101010110", '0', "000101010101", "0101010101010101"),
|
|
("0101010101010110", '0', "001101010101", "0101010101010101"),
|
|
("0101010101010110", '0', "010101010101", "0101010101010101"),
|
|
("0101010101010110", '0', "011101010101", "0101010101010101"),
|
|
("0101010101010110", '0', "100101010101", "0101010101010101"),
|
|
("0101010101010110", '0', "101101010101", "0101010101010101"),
|
|
("0101010101010110", '0', "110101010101", "0101010101010110"),
|
|
("0101010101010110", '0', "111101010101", "0101010101010101"),
|
|
("0101010101010101", '1', "110101010101", "0101010101010110"),
|
|
("0101010101010101", '1', "110101010101", "0101010101010101"),
|
|
("0101010101010110", '1', "111101010101", "0101010101010101"),
|
|
("0101010101010110", '1', "111101010101", "0101010101010110"),
|
|
("0101010101010110", '0', "000101010101", "0101010101010101"),
|
|
("0101010101010110", '0', "000101010101", "0101010101010101"),
|
|
("0101010101010110", '0', "001101010101", "0101010101010101"),
|
|
("0101010101010110", '0', "010101010101", "0101010101010101"),
|
|
("0101010101010110", '0', "011101010101", "0101010101010101"),
|
|
("0101010101010110", '0', "100101010101", "0101010101010101"),
|
|
("0101010101010110", '0', "101101010101", "0101010101010101"),
|
|
("0101010101010110", '0', "110101010101", "0101010101010101"),
|
|
("0101010101010110", '0', "111101010101", "0101010101010110"),
|
|
("0101010101010101", '1', "111101010101", "0101010101010110"),
|
|
("0101010101010101", '1', "111101010101", "0101010101010101"),
|
|
("0101010101010101", '0', "000101010101", "0101010101010101"),
|
|
("0101010101010101", '0', "000101010101", "0101010101010101"),
|
|
("0101010101010101", '0', "001101010101", "0101010101010101"),
|
|
("0101010101010101", '0', "010101010101", "0101010101010101"),
|
|
("0101010101010101", '0', "011101010101", "0101010101010101"),
|
|
("0101010101010101", '0', "100101010101", "0101010101010101"),
|
|
("0101010101010101", '0', "101101010101", "0101010101010101"),
|
|
("0101010101010101", '0', "110101010101", "0101010101010101"),
|
|
("0101010101010101", '0', "111101010101", "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 ram4k_tb_arch;
|