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COMPUTER.vhd
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COMPUTER.vhd
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-- VHDL project: VHDL code for 8-bit Microcontroller
library IEEE;
use IEEE.STD_LOGIC_1164.ALL;
--- Top level VHDL code for the microcontroller
entity computer is
port(
clock,reset: in std_logic;
port_in_00: in std_logic_vector(7 downto 0);
port_in_01: in std_logic_vector(7 downto 0);
port_in_02: in std_logic_vector(7 downto 0);
port_in_03: in std_logic_vector(7 downto 0);
port_in_04: in std_logic_vector(7 downto 0);
port_in_05: in std_logic_vector(7 downto 0);
port_in_06: in std_logic_vector(7 downto 0);
port_in_07: in std_logic_vector(7 downto 0);
port_in_08: in std_logic_vector(7 downto 0);
port_in_09: in std_logic_vector(7 downto 0);
port_in_10: in std_logic_vector(7 downto 0);
port_in_11: in std_logic_vector(7 downto 0);
port_in_12: in std_logic_vector(7 downto 0);
port_in_13: in std_logic_vector(7 downto 0);
port_in_14: in std_logic_vector(7 downto 0);
port_in_15: in std_logic_vector(7 downto 0);
port_out_00: out std_logic_vector(7 downto 0);
port_out_01: out std_logic_vector(7 downto 0);
port_out_02: out std_logic_vector(7 downto 0);
port_out_03: out std_logic_vector(7 downto 0);
port_out_04: out std_logic_vector(7 downto 0);
port_out_05: out std_logic_vector(7 downto 0);
port_out_06: out std_logic_vector(7 downto 0);
port_out_07: out std_logic_vector(7 downto 0);
port_out_08: out std_logic_vector(7 downto 0);
port_out_09: out std_logic_vector(7 downto 0);
port_out_10: out std_logic_vector(7 downto 0);
port_out_11: out std_logic_vector(7 downto 0);
port_out_12: out std_logic_vector(7 downto 0);
port_out_13: out std_logic_vector(7 downto 0);
port_out_14: out std_logic_vector(7 downto 0);
port_out_15: out std_logic_vector(7 downto 0)
);
end computer;
architecture Behavioral of computer is
component cpu
port(
clock, reset: in std_logic;
address: out std_logic_vector(7 downto 0);
from_memory: in std_logic_vector(7 downto 0);
write: out std_logic;
to_memory: out std_logic_vector(7 downto 0)
);
end component cpu;
component memory
port (
address: in std_logic_vector(7 downto 0);
data_in: in std_logic_vector(7 downto 0);
write: in std_logic;
port_in_00: in std_logic_vector(7 downto 0);
port_in_01: in std_logic_vector(7 downto 0);
port_in_02: in std_logic_vector(7 downto 0);
port_in_03: in std_logic_vector(7 downto 0);
port_in_04: in std_logic_vector(7 downto 0);
port_in_05: in std_logic_vector(7 downto 0);
port_in_06: in std_logic_vector(7 downto 0);
port_in_07: in std_logic_vector(7 downto 0);
port_in_08: in std_logic_vector(7 downto 0);
port_in_09: in std_logic_vector(7 downto 0);
port_in_10: in std_logic_vector(7 downto 0);
port_in_11: in std_logic_vector(7 downto 0);
port_in_12: in std_logic_vector(7 downto 0);
port_in_13: in std_logic_vector(7 downto 0);
port_in_14: in std_logic_vector(7 downto 0);
port_in_15: in std_logic_vector(7 downto 0);
clock,reset: in std_logic;
data_out: out std_logic_vector(7 downto 0);
port_out_00: out std_logic_vector(7 downto 0);
port_out_01: out std_logic_vector(7 downto 0);
port_out_02: out std_logic_vector(7 downto 0);
port_out_03: out std_logic_vector(7 downto 0);
port_out_04: out std_logic_vector(7 downto 0);
port_out_05: out std_logic_vector(7 downto 0);
port_out_06: out std_logic_vector(7 downto 0);
port_out_07: out std_logic_vector(7 downto 0);
port_out_08: out std_logic_vector(7 downto 0);
port_out_09: out std_logic_vector(7 downto 0);
port_out_10: out std_logic_vector(7 downto 0);
port_out_11: out std_logic_vector(7 downto 0);
port_out_12: out std_logic_vector(7 downto 0);
port_out_13: out std_logic_vector(7 downto 0);
port_out_14: out std_logic_vector(7 downto 0);
port_out_15: out std_logic_vector(7 downto 0)
);
end component memory;
signal address,data_in,data_out: std_logic_vector(7 downto 0);
signal write: std_logic;
begin
--- cpu
cpu_u: cpu port map
(
clock => clock,
reset => reset,
address => address,
write => write,
to_memory => data_in,
from_memory => data_out
);
-- memory
memory_unit: memory port map
(
clock => clock,
reset => reset,
port_out_00 => port_out_00,
port_out_01 => port_out_01,
port_out_02 => port_out_02,
port_out_03 => port_out_03,
port_out_04 => port_out_04,
port_out_05 => port_out_05,
port_out_06 => port_out_06,
port_out_07 => port_out_07,
port_out_08 => port_out_08,
port_out_09 => port_out_09,
port_out_10 => port_out_10,
port_out_11 => port_out_11,
port_out_12 => port_out_12,
port_out_13 => port_out_13,
port_out_14 => port_out_14,
port_out_15 => port_out_15,
port_in_00 => port_in_00,
port_in_01 => port_in_01,
port_in_02 => port_in_02,
port_in_03 => port_in_03,
port_in_04 => port_in_04,
port_in_05 => port_in_05,
port_in_06 => port_in_06,
port_in_07 => port_in_07,
port_in_08 => port_in_08,
port_in_09 => port_in_09,
port_in_10 => port_in_10,
port_in_11 => port_in_11,
port_in_12 => port_in_12,
port_in_13 => port_in_13,
port_in_14 => port_in_14,
port_in_15 => port_in_15,
data_out => data_out,
address => address,
data_in => data_in,
write => write
);
end Behavioral;