_primary.vhd

verilog hdl编写,六段流水线CPU.程序完整

library verilog;
use verilog.vl_types.all;
entity leg_icache is
    generic(
        IDLE            : integer := 1;
        HIT_DETECT      : integer := 2;
        RELOAD_1        : integer := 4;
        RELOAD_2        : integer := 8
    );
    port(
        i_address       : in     vl_logic_vector(31 downto 0);
        i_dataout       : out    vl_logic_vector(31 downto 0);
        i_read          : in     vl_logic;
        i_wait          : out    vl_logic;
        ic_control      : in     vl_logic;
        ADR_O           : out    vl_logic_vector(31 downto 0);
        DAT_I           : in     vl_logic_vector(31 downto 0);
        STB_O           : out    vl_logic;
        CYC_O           : out    vl_logic;
        ACK_I           : in     vl_logic;
        SEL_O           : out    vl_logic_vector(3 downto 0);
        TGD_I           : in     vl_logic_vector(3 downto 0);
        TGD_O           : out    vl_logic_vector(3 downto 0);
        WE_O            : out    vl_logic;
        clk             : in     vl_logic;
        rst             : in     vl_logic
    );
end leg_icache;