包括W0-W15的赋值，还有run和firstrun的设置，谢谢了！
代码如下：
library IEEE;
use IEEE.STD_LOGIC_1164.ALL;
use IEEE.STD_LOGIC_ARITH.ALL;
use IEEE.STD_LOGIC_UNSIGNED.ALL; entity MD5 is
Port( Clk : in std_logic;
Reset : in std_logic;
Run : in std_logic;
FirstRun : in std_logic;
w0, w1, w2, w3, w4, w5, w6, w7, w8, w9, w10, w11, w12, w13, w14, w15 : in std_logic_vector(31 downto 0);
Done : out std_logic;
Hash_1, Hash_2, Hash_3, Hash_4 : out std_logic_vector(31 downto 0));
end MD5;
architecture Behavioral of MD5 is --Initial Constants for Words A, B, C, and D
constant aa : std_logic_vector(31 downto 0) := x"67452301";
constant bb : std_logic_vector(31 downto 0) := x"EFCDAB89";
constant cc : std_logic_vector(31 downto 0) := x"98BADCFE";
constant dd : std_logic_vector(31 downto 0) := x"10325476"; subtype arr8 is STD_LOGIC_VECTOR (7 downto 0);
subtype arr32 is STD_LOGIC_VECTOR (31 downto 0); --R[64] is used to determine the amount of left rotation
type Rarray is array (63 downto 0) of arr8;
constant R : Rarray :=( x"15", x"0F", x"0A", x"06", x"15", x"0F", x"0A", x"06", x"15", x"0F", x"0A", x"06", x"15", x"0F", x"0A", x"06",
x"17", x"10", x"0B", x"04", x"17", x"10", x"0B", x"04", x"17", x"10", x"0B", x"04", x"17", x"10", x"0B", x"04",
x"14", x"0E", x"09", x"05", x"14", x"0E", x"09", x"05", x"14", x"0E", x"09", x"05", x"14", x"0E", x"09", x"05",
x"16", x"11", x"0C", x"07", x"16", x"11", x"0C", x"07", x"16", x"11", x"0C", x"07", x"16", x"11", x"0C", x"07");
--K[64] = floor(abs(sin(i)) * 2^32)
type Karray is array (63 downto 0) of arr32;
constant K : Karray :=( x"eb86d391", x"2ad7d2bb", x"bd3af235", x"f7537e82", x"4e0811a1", x"a3014314", x"fe2ce6e0", x"6fa87e4f", x"85845dd1",
x"ffeff47d", x"8f0ccc92", x"655b59c3", x"fc93a039", x"ab9423a7", x"432aff97", x"f4292244", x"c4ac5665", x"1fa27cf8",
x"e6db99e5", x"d9d4d039", x"04881d05", x"d4ef3085", x"eaa127fa", x"289b7ec6", x"bebfbc70", x"f6bb4b60", x"4bdecfa9",
x"a4beea44", x"fde5380c", x"6d9d6122", x"8771f681", x"fffa3942", x"8d2a4c8a", x"676f02d9", x"fcefa3f8", x"a9e3e905",
x"455a14ed", x"f4d50d87", x"c33707d6", x"21e1cde6", x"e7d3fbc8", x"d8a1e681", x"02441453", x"d62f105d", x"e9b6c7aa",
x"265e5a51", x"c040b340", x"f61e2562", x"49b40821", x"a679438e", x"fd987193", x"6b901122", x"895cd7be", x"ffff5bb1",
x"8b44f7af", x"698098d8", x"fd469501", x"a8304613", x"4787c62a", x"f57c0faf", x"c1bdceee", x"242070db", x"e8c7b756",
x"d76aa478"); type Warray is array (15 downto 0) of arr32;
signal W : Warray;
signal a, b, c, d, f : std_logic_vector(31 downto 0);
signal g : integer range 0 to 15;
signal i : integer range 0 to 64; type ctrl_state is (Halt, Process_1, Process_2, Process_3, Process_4, Waiting, Finished);
signal State, Next_state : ctrl_state; begin
Assign_Next_State : process (Clk, Reset)


粘贴在这上面不是那么好看了，跪求大神了，我是在modelsim中做的仿真，急需啊！