Курсовая работа: Разработка структуры процессора на основе МПА с жесткой логикой

MBROut: out std_logic;

IRIn: out std_logic;

MEMRd: out std_logic;

Reset: inout std_logic;

RST: in std_logic;

Clk: in std_logic);

end CU;

architecture CU of CU is

signal R: std_logic;

signal InstrDecoded,i: std_logic_vector(3 downto 0);

signal CounterPacked: std_logic_vector(2 downto 0);

signal CounterDecoded,c: std_logic_vector(7 downto 0);

component Counter is

port(Q: out std_logic_vector(2 downto 0);

RST: in std_logic;

Clk: in std_logic);

end component;

component Decoder is

generic(n: integer:=2);

port(D: in std_logic_vector(n-1 downto 0);

Q: out std_logic_vector((2**n)-1 downto 0));

end component;

begin

DD0: Counter port map(Q=>CounterPacked,RST=>R,Clk=>Clk);

InstrDecoder: Decoder generic map(2)port map(D=>Instr,Q=>InstrDecoded);

CounterDecoder: Decoder generic map(3)port map(D=>CounterPacked,Q=>CounterDecoded);

c<=CounterDecoded;

i<=InstrDecoded;

MemRd<='1' when c="00000001" or c="00000100" else '0' after 5ns;