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zeuscz |
library ieee;
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use ieee.std_logic_1164.all;
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use ieee.numeric_std.all;
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entity control is
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port(
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data : in std_logic_vector(7 downto 0); -- input for data version(4B), hashprevblock(32B), merklehash(32B), time(4B), target(4B), difficulty(32B)
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loaddata : in std_logic; -- loaddata = 1 for load input data
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dataout : out bit_vector ( 7 downto 0); -- output for results
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loaddataout : out bit; -- loaddataout = 1 when results are ready
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clk : in std_logic; -- master clock signal
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controlrst : in std_logic -- master reset signal
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);
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end control;
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architecture phy2 of control is
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signal md : bit_vector (31 downto 0) := (others => '0');
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signal v : bit := '0';
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signal m : bit_vector ( 31 downto 0) := (others => '0');
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signal ld : bit := '0';
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signal init : bit := '0';
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signal rst : std_logic := '0';
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signal hash : bit_vector (255 downto 0) := (others => '0');
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signal cmphash : bit_vector (255 downto 0) := (others => '0');
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signal reset : bit := '0';
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signal resethash : bit := '0';
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signal pom : bit := '0';
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signal start : bit := '0';
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signal start2 : bit := '0';
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signal difficulty : bit_vector (255 downto 0) := (others => '0');
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signal cmpstart : bit := '0';
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signal loaded : bit := '0';
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signal output : std_logic := '0';
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signal output_slow : std_logic := '0';
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signal clkreset : std_logic := '0';
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signal stop : std_logic := '0';
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signal ntime : bit_vector (31 downto 0) := (others => '0');
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signal ntime_max : bit_vector (31 downto 0) := (others => '0');
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signal sendend : std_logic := '0';
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signal nonce_out : bit_vector (31 downto 0) := (others => '0');
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signal ntime_out : bit_vector (31 downto 0) := (others => '0');
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signal data1 : bit_vector (31 downto 0) := (others => '0');
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signal data2 : bit_vector (31 downto 0) := (others => '0');
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signal data3 : bit_vector (31 downto 0) := (others => '0');
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signal data4 : bit_vector (31 downto 0) := (others => '0');
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signal data5 : bit_vector (31 downto 0) := (others => '0');
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signal data6 : bit_vector (31 downto 0) := (others => '0');
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signal data7 : bit_vector (31 downto 0) := (others => '0');
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signal data8 : bit_vector (31 downto 0) := (others => '0');
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signal data9 : bit_vector (31 downto 0) := (others => '0');
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signal data10 : bit_vector (31 downto 0) := (others => '0');
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signal data11 : bit_vector (31 downto 0) := (others => '0');
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signal data12 : bit_vector (31 downto 0) := (others => '0');
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signal data13 : bit_vector (31 downto 0) := (others => '0');
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signal data14 : bit_vector (31 downto 0) := (others => '0');
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signal data15 : bit_vector (31 downto 0) := (others => '0');
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signal data16 : bit_vector (31 downto 0) := (others => '0');
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signal data17 : bit_vector (31 downto 0) := (others => '0');
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signal data18 : bit_vector (31 downto 0) := (others => '0');
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signal data19 : bit_vector (31 downto 0) := (others => '0');
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signal data20 : bit_vector (31 downto 0) := X"00000000";--(others => '0'); -- nonce (32bitu)
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signal data21 : bit_vector (31 downto 0) := X"00000080"; -- padding
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signal data22 : bit_vector (31 downto 0) := X"00000000"; -- padding
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signal data23 : bit_vector (31 downto 0) := X"00000000"; -- padding
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signal data24 : bit_vector (31 downto 0) := X"00000000"; -- padding
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signal data25 : bit_vector (31 downto 0) := X"00000000"; -- padding
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signal data26 : bit_vector (31 downto 0) := X"00000000"; -- padding
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signal data27 : bit_vector (31 downto 0) := X"00000000"; -- padding
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signal data28 : bit_vector (31 downto 0) := X"00000000"; -- padding
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signal data29 : bit_vector (31 downto 0) := X"00000000"; -- padding
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signal data30 : bit_vector (31 downto 0) := X"00000000"; -- padding
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signal data31 : bit_vector (31 downto 0) := X"00000000"; -- padding
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signal data32 : bit_vector (31 downto 0) := X"80020000"; -- padding
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begin
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-- sha256 unit
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hashsha256: entity work.sha256
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port map(
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m => m, -- input data for hash (16*32 bits = 512bits)
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init => init, -- init signal
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ld => ld, -- load signal (ld = 1 for loading 256 bits, after ld = 0)
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md => md, -- result hash 8*32 bits (256bits)
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v => v, -- output signal = hash is ready
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clk => CLK,
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rst => rst
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);
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rst <= to_stdulogic(resethash);
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-- load hash from sha256 unit
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loadhash: process(clk,reset,controlrst,sendend,stop,loaded)
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variable cnt_in : integer := 0;
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variable cnt_in2 : integer := 0;
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variable final : integer := 0;
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variable complete : integer := 0;
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begin
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if ((clk = '1') and clk'event) then
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pom <= '0';
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cmpstart <= '0';
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if ((controlrst = '1') or (reset = '1') or ((stop = '1') and (loaded = '0'))) then
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cnt_in := 0;
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cnt_in2 := 0;
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final := 0;
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end if;
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if((v = '1') and (complete = 1)) then
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cnt_in2 := cnt_in2+1;
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complete :=0;
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cmpstart <= '1';
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elsif ((v = '1') and (final = 0)) then
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final := 1;
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elsif ((v = '1') and (final = 1)) then
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cnt_in := cnt_in+1;
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final := 0;
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complete :=1;
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end if;
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if (cnt_in > 0) then
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CASE cnt_in IS
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WHEN 2 => hash(255 downto 224) <= md;
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WHEN 3 => hash(223 downto 192) <= md;
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WHEN 4 => hash(191 downto 160) <= md;
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WHEN 5 => hash(159 downto 128) <= md;
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WHEN 6 => hash(127 downto 96) <= md;
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WHEN 7 => hash(95 downto 64) <= md;
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WHEN 8 => hash(63 downto 32) <= md;
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WHEN 9 => hash(31 downto 0) <= md;
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when others =>
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END CASE;
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if((cnt_in = 9) and (complete = 1)) then
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pom <= '1';
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end if;
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cnt_in:=cnt_in+1;
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end if;
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if (cnt_in2 > 0) then
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CASE cnt_in2 IS
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WHEN 2 => cmphash(255 downto 224) <= md;
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WHEN 3 => cmphash(223 downto 192) <= md;
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WHEN 4 => cmphash(191 downto 160) <= md;
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WHEN 5 => cmphash(159 downto 128) <= md;
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WHEN 6 => cmphash(127 downto 96) <= md;
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WHEN 7 => cmphash(95 downto 64) <= md;
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WHEN 8 => cmphash(63 downto 32) <= md;
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WHEN 9 => cmphash(31 downto 0) <= md;
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when others =>
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END CASE;
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cnt_in2:=cnt_in2+1;
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end if;
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end if;
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end process;
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-- process sets control signals
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setsignals: process(clk,reset,loaded,start2,controlrst,stop)
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variable cnt : integer := 0;
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variable rstcnt : integer := 0;
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variable complete : integer := 0;
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variable final : integer := 0;
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variable resetoff : integer := 0;
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begin
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if ((clk = '1') and clk'event) then
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ld <= '0';
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init <= '0';
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resethash <= '0';
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if ((controlrst = '1') or ((stop = '1') and (loaded = '0'))) then
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cnt := 0;
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final := 0;
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resethash <= '1';
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else
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if(cnt > 0) then
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cnt := cnt+1;
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end if;
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if((loaded = '1') and (cnt = 0)) then
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cnt := 1;
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resetoff := 1;
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end if;
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if(resetoff = 1) then
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resethash <= '0';
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else
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resethash <= '1';
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end if;
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if (reset = '1') then
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cnt := 1;
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final := 0;
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end if;
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if((cnt > 0) and (cnt < 17)) then
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ld <= '1';
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end if;
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if((v = '1') and (complete = 1)) then
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complete :=0;
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rstcnt := rstcnt+1;
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elsif ((v = '1') and (final = 0)) then
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final := 1;
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elsif ((v = '1') and (final = 1)) then
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rstcnt := rstcnt+1;
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final := 0;
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complete :=1;
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end if;
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if(rstcnt > 0 and (rstcnt < 10)) then
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rstcnt := rstcnt+1;
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end if;
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if((rstcnt = 10) and (start2 = '1') and (complete = 0)) then
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reset <= '1';
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resethash <= '1';
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rstcnt := 11;
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elsif((rstcnt = 10) and (start2 = '0') and (complete = 0)) then
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resethash <= '1';
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reset <= '1';
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elsif((rstcnt = 11) and (complete = 0)) then
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reset <= '0';
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rstcnt := 0;
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end if;
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if((rstcnt = 10) and (complete = 1)) then
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reset <= '1';
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resethash <= '1';
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rstcnt := 11;
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elsif((rstcnt = 11) and (complete = 1)) then
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reset <= '0';
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rstcnt := 0;
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end if;
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if(cnt = 1) then
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init <= '1';
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end if;
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if ((cnt > 75) and (cnt < 92)) then
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ld <= '1';
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end if;
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end if;
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end if;
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end process;
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-- load data to sha256 unit
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loadhashdata: process(CLK,pom,loaded,reset,start,controlrst,stop)
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variable cnt1 : integer := 0;
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variable cnt2 : integer := 0;
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variable settime : integer := 0;
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begin
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if((clk = '1') and clk'event) then
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| 265 |
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| 266 |
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if((controlrst = '1') or (reset = '1') or ((stop = '1') and (loaded = '0'))) then
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cnt1:=0;
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cnt2:=0;
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settime := 0;
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end if;
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if((loaded = '1') and (cnt1 = 0)) then
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cnt1:= 1;
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end if;
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| 276 |
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if(start = '1') then
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cnt1:= 1;
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end if;
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| 279 |
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| 280 |
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if (pom = '1') then
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| 281 |
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cnt2 := 1;
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| 282 |
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end if;
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| 283 |
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| 284 |
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if ((cnt1 > 0) and (cnt1 < 92)) then
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| 285 |
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C2: case cnt1 is
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| 287 |
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when 1 => m <= data1;
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| 288 |
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when 2 => m <= data2;
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| 289 |
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when 3 => m <= data3;
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| 290 |
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when 4 => m <= data4;
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| 291 |
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when 5 => m <= data5;
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| 292 |
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when 6 => m <= data6;
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| 293 |
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when 7 => m <= data7;
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| 294 |
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when 8 => m <= data8;
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| 295 |
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when 9 => m <= data9;
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| 296 |
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when 10 => m <= data10;
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| 297 |
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when 11 => m <= data11;
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| 298 |
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when 12 => m <= data12;
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| 299 |
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when 13 => m <= data13;
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| 300 |
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when 14 => m <= data14;
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| 301 |
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when 15 => m <= data15;
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| 302 |
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when 16 => m <= data16;
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| 303 |
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| 304 |
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| 305 |
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when 76 => m <= data17;
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| 306 |
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when 78 => m <= data19;
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| 307 |
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when 79 => m <= data20;
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| 308 |
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when 80 => m <= data21;
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| 309 |
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when 81 => m <= data22;
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| 310 |
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when 82 => m <= data23;
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| 311 |
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when 83 => m <= data24;
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when 84 => m <= data25;
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| 313 |
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when 85 => m <= data26;
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| 314 |
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when 86 => m <= data27;
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| 315 |
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when 87 => m <= data28;
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| 316 |
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when 88 => m <= data29;
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| 317 |
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when 89 => m <= data30;
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| 318 |
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when 90 => m <= data31;
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| 319 |
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when 91 => m <= data32;
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| 320 |
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when others =>
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end case C2;
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| 322 |
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| 323 |
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| 324 |
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if((cnt1 = 77) and (settime = 0)) then
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| 325 |
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m <= data18;
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| 326 |
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settime := 1;
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| 327 |
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elsif((cnt1 = 77) and (settime = 1)) then
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| 328 |
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m <= ntime;
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| 329 |
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end if;
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| 330 |
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| 331 |
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cnt1 := cnt1+1;
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end if;
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| 333 |
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| 334 |
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if ((cnt2 > 0) and (cnt2 < 18)) then
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| 335 |
|
|
|
| 336 |
|
|
CASE cnt2 IS
|
| 337 |
|
|
WHEN 1 => m <= hash(255 downto 224);
|
| 338 |
|
|
WHEN 2 => m <= hash(223 downto 192);
|
| 339 |
|
|
WHEN 3 => m <= hash(191 downto 160);
|
| 340 |
|
|
WHEN 4 => m <= hash(159 downto 128);
|
| 341 |
|
|
WHEN 5 => m <= hash(127 downto 96);
|
| 342 |
|
|
WHEN 6 => m <= hash(95 downto 64);
|
| 343 |
|
|
WHEN 7 => m <= hash(63 downto 32);
|
| 344 |
|
|
WHEN 8 => m <= hash(31 downto 0);
|
| 345 |
|
|
WHEN 9 => m <= X"80000000";
|
| 346 |
|
|
WHEN 10 => m <= X"00000000";
|
| 347 |
|
|
WHEN 11 => m <= X"00000000";
|
| 348 |
|
|
WHEN 12 => m <= X"00000000";
|
| 349 |
|
|
WHEN 13 => m <= X"00000000";
|
| 350 |
|
|
WHEN 14 => m <= X"00000000";
|
| 351 |
|
|
WHEN 15 => m <= X"00000000";
|
| 352 |
|
|
WHEN 16 => m <= X"00000100";
|
| 353 |
|
|
when others =>
|
| 354 |
|
|
END CASE;
|
| 355 |
|
|
|
| 356 |
|
|
cnt2 := cnt2+1;
|
| 357 |
|
|
end if;
|
| 358 |
|
|
end if;
|
| 359 |
|
|
end process;
|
| 360 |
|
|
|
| 361 |
|
|
-- compare computed hash with difficulty
|
| 362 |
|
|
compare: process(CLK,cmpstart,controlrst,stop,loaded)
|
| 363 |
|
|
variable cmpcnt : integer := 0;
|
| 364 |
|
|
variable startcnt : integer := 0;
|
| 365 |
|
|
variable finish : integer := 0;
|
| 366 |
|
|
variable pomhash : unsigned(255 downto 0);
|
| 367 |
|
|
variable diff : unsigned(255 downto 0);
|
| 368 |
|
|
variable nonce : bit_vector(31 downto 0) := X"00000000";
|
| 369 |
|
|
variable one : bit_vector(31 downto 0) := X"00000001";
|
| 370 |
|
|
variable pom_ntime : bit_vector(31 downto 0);
|
| 371 |
|
|
variable settime : integer := 0;
|
| 372 |
|
|
begin
|
| 373 |
|
|
|
| 374 |
|
|
if ((clk = '1') and clk'event) then
|
| 375 |
|
|
|
| 376 |
|
|
output <= '0';
|
| 377 |
|
|
start <= '0';
|
| 378 |
|
|
start2 <= '0';
|
| 379 |
|
|
sendend <= '0';
|
| 380 |
|
|
|
| 381 |
|
|
if((controlrst = '1') or ((stop = '1') and (loaded = '0'))) then
|
| 382 |
|
|
cmpcnt := 0;
|
| 383 |
|
|
startcnt := 0;
|
| 384 |
|
|
nonce_out <= X"00000000";
|
| 385 |
|
|
nonce := X"00000000";
|
| 386 |
|
|
data20 <= X"00000000";
|
| 387 |
|
|
ntime_out <= X"00000000";
|
| 388 |
|
|
settime := 0;
|
| 389 |
|
|
end if;
|
| 390 |
|
|
|
| 391 |
|
|
if(cmpstart = '1') then
|
| 392 |
|
|
cmpcnt := cmpcnt+1;
|
| 393 |
|
|
end if;
|
| 394 |
|
|
|
| 395 |
|
|
if(cmpcnt > 0) then
|
| 396 |
|
|
cmpcnt := cmpcnt+1;
|
| 397 |
|
|
end if;
|
| 398 |
|
|
|
| 399 |
|
|
if(startcnt > 0) then
|
| 400 |
|
|
startcnt := startcnt+1;
|
| 401 |
|
|
end if;
|
| 402 |
|
|
|
| 403 |
|
|
if(startcnt = 80580) then
|
| 404 |
|
|
start2 <= '1';
|
| 405 |
|
|
end if;
|
| 406 |
|
|
|
| 407 |
|
|
if(startcnt = 80581) then
|
| 408 |
|
|
start <= '1';
|
| 409 |
|
|
startcnt := 0;
|
| 410 |
|
|
end if;
|
| 411 |
|
|
|
| 412 |
|
|
if(cmpcnt = 10) then
|
| 413 |
|
|
if(settime = 0) then
|
| 414 |
|
|
ntime <= data18;
|
| 415 |
|
|
settime := 1;
|
| 416 |
|
|
end if;
|
| 417 |
|
|
|
| 418 |
|
|
if(cmphash <= difficulty) then
|
| 419 |
|
|
|
| 420 |
|
|
nonce_out <= data20;
|
| 421 |
|
|
ntime_out <= pom_ntime;
|
| 422 |
|
|
|
| 423 |
|
|
if((nonce = X"ffffffff") and (ntime = ntime_max)) then
|
| 424 |
|
|
if(finish = 0) then
|
| 425 |
|
|
sendend <= '1';
|
| 426 |
|
|
output <= '1';
|
| 427 |
|
|
finish := 1;
|
| 428 |
|
|
end if;
|
| 429 |
|
|
elsif(nonce = X"ffffffff") then
|
| 430 |
|
|
nonce := X"00000000";
|
| 431 |
|
|
if(ntime < ntime_max) then
|
| 432 |
|
|
pom_ntime := to_bitvector(std_logic_vector(unsigned(to_stdlogicvector(ntime)) + X"00000001"));
|
| 433 |
|
|
ntime <= pom_ntime;
|
| 434 |
|
|
end if;
|
| 435 |
|
|
end if;
|
| 436 |
|
|
|
| 437 |
|
|
cmpcnt := 0;
|
| 438 |
|
|
nonce := to_bitvector(std_logic_vector(unsigned(to_stdlogicvector(data20(31 downto 0))) + unsigned(to_stdlogicvector(one))));
|
| 439 |
|
|
data20(31 downto 0) <= nonce;
|
| 440 |
|
|
output <= '1';
|
| 441 |
|
|
startcnt := 1;
|
| 442 |
|
|
|
| 443 |
|
|
else
|
| 444 |
|
|
|
| 445 |
|
|
if((nonce = X"ffffffff") and (ntime = ntime_max)) then
|
| 446 |
|
|
output <= '0';
|
| 447 |
|
|
elsif(nonce = X"ffffffff") then
|
| 448 |
|
|
nonce := X"00000000";
|
| 449 |
|
|
if(ntime < ntime_max) then
|
| 450 |
|
|
pom_ntime := to_bitvector(std_logic_vector(unsigned(to_stdlogicvector(ntime)) + X"00000001"));
|
| 451 |
|
|
ntime <= pom_ntime;
|
| 452 |
|
|
end if;
|
| 453 |
|
|
end if;
|
| 454 |
|
|
|
| 455 |
|
|
cmpcnt := 0;
|
| 456 |
|
|
nonce := to_bitvector(std_logic_vector(unsigned(to_stdlogicvector(data20(31 downto 0))) + unsigned(to_stdlogicvector(one))));
|
| 457 |
|
|
data20(31 downto 0) <= nonce;
|
| 458 |
|
|
output <= '0';
|
| 459 |
|
|
startcnt := 1;
|
| 460 |
|
|
end if;
|
| 461 |
|
|
end if;
|
| 462 |
|
|
end if;
|
| 463 |
|
|
end process;
|
| 464 |
|
|
|
| 465 |
|
|
-- load input data version(4B), hashprevblock(32B), merklehash(32B), time(4B), target(4B), difficulty(32B)
|
| 466 |
|
|
loadingdata: process(clk,loaddata,controlrst)
|
| 467 |
|
|
variable cnt : integer := 0;
|
| 468 |
|
|
begin
|
| 469 |
|
|
|
| 470 |
|
|
if ((clk = '1') and clk'event) then
|
| 471 |
|
|
|
| 472 |
|
|
if((controlrst = '1')) then
|
| 473 |
|
|
cnt := 0;
|
| 474 |
|
|
end if;
|
| 475 |
|
|
|
| 476 |
|
|
if((loaddata = '1')) then
|
| 477 |
|
|
cnt := cnt+1;
|
| 478 |
|
|
|
| 479 |
|
|
CASE cnt IS
|
| 480 |
|
|
-- version
|
| 481 |
|
|
WHEN 1 => data1(31 downto 24) <= to_bitvector(data);
|
| 482 |
|
|
WHEN 2 => data1(23 downto 16) <= to_bitvector(data);
|
| 483 |
|
|
WHEN 3 => data1(15 downto 8) <= to_bitvector(data);
|
| 484 |
|
|
WHEN 4 => data1(7 downto 0) <= to_bitvector(data);
|
| 485 |
|
|
-- hashprevblock
|
| 486 |
|
|
WHEN 5 => data2(31 downto 24) <= to_bitvector(data);
|
| 487 |
|
|
WHEN 6 => data2(23 downto 16) <= to_bitvector(data);
|
| 488 |
|
|
WHEN 7 => data2(15 downto 8) <= to_bitvector(data);
|
| 489 |
|
|
WHEN 8 => data2(7 downto 0) <= to_bitvector(data);
|
| 490 |
|
|
-- hashprevblock
|
| 491 |
|
|
WHEN 9 => data3(31 downto 24) <= to_bitvector(data);
|
| 492 |
|
|
WHEN 10 => data3(23 downto 16) <= to_bitvector(data);
|
| 493 |
|
|
WHEN 11 => data3(15 downto 8) <= to_bitvector(data);
|
| 494 |
|
|
WHEN 12 => data3(7 downto 0) <= to_bitvector(data);
|
| 495 |
|
|
-- hashprevblock
|
| 496 |
|
|
WHEN 13 => data4(31 downto 24) <= to_bitvector(data);
|
| 497 |
|
|
WHEN 14 => data4(23 downto 16) <= to_bitvector(data);
|
| 498 |
|
|
WHEN 15 => data4(15 downto 8) <= to_bitvector(data);
|
| 499 |
|
|
WHEN 16 => data4(7 downto 0) <= to_bitvector(data);
|
| 500 |
|
|
-- hashprevblock
|
| 501 |
|
|
WHEN 17 => data5(31 downto 24) <= to_bitvector(data);
|
| 502 |
|
|
WHEN 18 => data5(23 downto 16) <= to_bitvector(data);
|
| 503 |
|
|
WHEN 19 => data5(15 downto 8) <= to_bitvector(data);
|
| 504 |
|
|
WHEN 20 => data5(7 downto 0) <= to_bitvector(data);
|
| 505 |
|
|
-- hashprevblock
|
| 506 |
|
|
WHEN 21 => data6(31 downto 24) <= to_bitvector(data);
|
| 507 |
|
|
WHEN 22 => data6(23 downto 16) <= to_bitvector(data);
|
| 508 |
|
|
WHEN 23 => data6(15 downto 8) <= to_bitvector(data);
|
| 509 |
|
|
WHEN 24 => data6(7 downto 0) <= to_bitvector(data);
|
| 510 |
|
|
-- hashprevblock
|
| 511 |
|
|
WHEN 25 => data7(31 downto 24) <= to_bitvector(data);
|
| 512 |
|
|
WHEN 26 => data7(23 downto 16) <= to_bitvector(data);
|
| 513 |
|
|
WHEN 27 => data7(15 downto 8) <= to_bitvector(data);
|
| 514 |
|
|
WHEN 28 => data7(7 downto 0) <= to_bitvector(data);
|
| 515 |
|
|
-- hashprevblock
|
| 516 |
|
|
WHEN 29 => data8(31 downto 24) <= to_bitvector(data);
|
| 517 |
|
|
WHEN 30 => data8(23 downto 16) <= to_bitvector(data);
|
| 518 |
|
|
WHEN 31 => data8(15 downto 8) <= to_bitvector(data);
|
| 519 |
|
|
WHEN 32 => data8(7 downto 0) <= to_bitvector(data);
|
| 520 |
|
|
-- hashprevblock
|
| 521 |
|
|
WHEN 33 => data9(31 downto 24) <= to_bitvector(data);
|
| 522 |
|
|
WHEN 34 => data9(23 downto 16) <= to_bitvector(data);
|
| 523 |
|
|
WHEN 35 => data9(15 downto 8) <= to_bitvector(data);
|
| 524 |
|
|
WHEN 36 => data9(7 downto 0) <= to_bitvector(data);
|
| 525 |
|
|
-- merklehash
|
| 526 |
|
|
WHEN 37 => data10(31 downto 24) <= to_bitvector(data);
|
| 527 |
|
|
WHEN 38 => data10(23 downto 16) <= to_bitvector(data);
|
| 528 |
|
|
WHEN 39 => data10(15 downto 8) <= to_bitvector(data);
|
| 529 |
|
|
WHEN 40 => data10(7 downto 0) <= to_bitvector(data);
|
| 530 |
|
|
-- merklehash
|
| 531 |
|
|
WHEN 41 => data11(31 downto 24) <= to_bitvector(data);
|
| 532 |
|
|
WHEN 42 => data11(23 downto 16) <= to_bitvector(data);
|
| 533 |
|
|
WHEN 43 => data11(15 downto 8) <= to_bitvector(data);
|
| 534 |
|
|
WHEN 44 => data11(7 downto 0) <= to_bitvector(data);
|
| 535 |
|
|
-- merklehash
|
| 536 |
|
|
WHEN 45 => data12(31 downto 24) <= to_bitvector(data);
|
| 537 |
|
|
WHEN 46 => data12(23 downto 16) <= to_bitvector(data);
|
| 538 |
|
|
WHEN 47 => data12(15 downto 8) <= to_bitvector(data);
|
| 539 |
|
|
WHEN 48 => data12(7 downto 0) <= to_bitvector(data);
|
| 540 |
|
|
-- merklehash
|
| 541 |
|
|
WHEN 49 => data13(31 downto 24) <= to_bitvector(data);
|
| 542 |
|
|
WHEN 50 => data13(23 downto 16) <= to_bitvector(data);
|
| 543 |
|
|
WHEN 51 => data13(15 downto 8) <= to_bitvector(data);
|
| 544 |
|
|
WHEN 52 => data13(7 downto 0) <= to_bitvector(data);
|
| 545 |
|
|
-- merklehash
|
| 546 |
|
|
WHEN 53 => data14(31 downto 24) <= to_bitvector(data);
|
| 547 |
|
|
WHEN 54 => data14(23 downto 16) <= to_bitvector(data);
|
| 548 |
|
|
WHEN 55 => data14(15 downto 8) <= to_bitvector(data);
|
| 549 |
|
|
WHEN 56 => data14(7 downto 0) <= to_bitvector(data);
|
| 550 |
|
|
-- merklehash
|
| 551 |
|
|
WHEN 57 => data15(31 downto 24) <= to_bitvector(data);
|
| 552 |
|
|
WHEN 58 => data15(23 downto 16) <= to_bitvector(data);
|
| 553 |
|
|
WHEN 59 => data15(15 downto 8) <= to_bitvector(data);
|
| 554 |
|
|
WHEN 60 => data15(7 downto 0) <= to_bitvector(data);
|
| 555 |
|
|
-- merklehash
|
| 556 |
|
|
WHEN 61 => data16(31 downto 24) <= to_bitvector(data);
|
| 557 |
|
|
WHEN 62 => data16(23 downto 16) <= to_bitvector(data);
|
| 558 |
|
|
WHEN 63 => data16(15 downto 8) <= to_bitvector(data);
|
| 559 |
|
|
WHEN 64 => data16(7 downto 0) <= to_bitvector(data);
|
| 560 |
|
|
-- merklehash
|
| 561 |
|
|
WHEN 65 => data17(31 downto 24) <= to_bitvector(data);
|
| 562 |
|
|
WHEN 66 => data17(23 downto 16) <= to_bitvector(data);
|
| 563 |
|
|
WHEN 67 => data17(15 downto 8) <= to_bitvector(data);
|
| 564 |
|
|
WHEN 68 => data17(7 downto 0) <= to_bitvector(data);
|
| 565 |
|
|
-- time
|
| 566 |
|
|
WHEN 69 => data18(31 downto 24) <= to_bitvector(data);
|
| 567 |
|
|
WHEN 70 => data18(23 downto 16) <= to_bitvector(data);
|
| 568 |
|
|
WHEN 71 => data18(15 downto 8) <= to_bitvector(data);
|
| 569 |
|
|
WHEN 72 => data18(7 downto 0) <= to_bitvector(data);
|
| 570 |
|
|
-- target
|
| 571 |
|
|
WHEN 73 => data19(31 downto 24) <= to_bitvector(data);
|
| 572 |
|
|
WHEN 74 => data19(23 downto 16) <= to_bitvector(data);
|
| 573 |
|
|
WHEN 75 => data19(15 downto 8) <= to_bitvector(data);
|
| 574 |
|
|
WHEN 76 => data19(7 downto 0) <= to_bitvector(data);
|
| 575 |
|
|
|
| 576 |
|
|
-- difficulty (256bits)
|
| 577 |
|
|
WHEN 77 => difficulty(255 downto 248) <= to_bitvector(data);
|
| 578 |
|
|
WHEN 78 => difficulty(247 downto 240) <= to_bitvector(data);
|
| 579 |
|
|
WHEN 79 => difficulty(239 downto 232) <= to_bitvector(data);
|
| 580 |
|
|
WHEN 80 => difficulty(231 downto 224) <= to_bitvector(data);
|
| 581 |
|
|
WHEN 81 => difficulty(223 downto 216) <= to_bitvector(data);
|
| 582 |
|
|
WHEN 82 => difficulty(215 downto 208) <= to_bitvector(data);
|
| 583 |
|
|
WHEN 83 => difficulty(207 downto 200) <= to_bitvector(data);
|
| 584 |
|
|
WHEN 84 => difficulty(199 downto 192) <= to_bitvector(data);
|
| 585 |
|
|
WHEN 85 => difficulty(191 downto 184) <= to_bitvector(data);
|
| 586 |
|
|
WHEN 86 => difficulty(183 downto 176) <= to_bitvector(data);
|
| 587 |
|
|
WHEN 87 => difficulty(175 downto 168) <= to_bitvector(data);
|
| 588 |
|
|
WHEN 88 => difficulty(167 downto 160) <= to_bitvector(data);
|
| 589 |
|
|
WHEN 89 => difficulty(159 downto 152) <= to_bitvector(data);
|
| 590 |
|
|
WHEN 90 => difficulty(151 downto 144) <= to_bitvector(data);
|
| 591 |
|
|
WHEN 91 => difficulty(143 downto 136) <= to_bitvector(data);
|
| 592 |
|
|
WHEN 92 => difficulty(135 downto 128) <= to_bitvector(data);
|
| 593 |
|
|
WHEN 93 => difficulty(127 downto 120) <= to_bitvector(data);
|
| 594 |
|
|
WHEN 94 => difficulty(119 downto 112) <= to_bitvector(data);
|
| 595 |
|
|
WHEN 95 => difficulty(111 downto 104) <= to_bitvector(data);
|
| 596 |
|
|
WHEN 96 => difficulty(103 downto 96) <= to_bitvector(data);
|
| 597 |
|
|
WHEN 97 => difficulty(95 downto 88) <= to_bitvector(data);
|
| 598 |
|
|
WHEN 98 => difficulty(87 downto 80) <= to_bitvector(data);
|
| 599 |
|
|
WHEN 99 => difficulty(79 downto 72) <= to_bitvector(data);
|
| 600 |
|
|
WHEN 100 => difficulty(71 downto 64) <= to_bitvector(data);
|
| 601 |
|
|
WHEN 101 => difficulty(63 downto 56) <= to_bitvector(data);
|
| 602 |
|
|
WHEN 102 => difficulty(55 downto 48) <= to_bitvector(data);
|
| 603 |
|
|
WHEN 103 => difficulty(47 downto 40) <= to_bitvector(data);
|
| 604 |
|
|
WHEN 104 => difficulty(39 downto 32) <= to_bitvector(data);
|
| 605 |
|
|
WHEN 105 => difficulty(31 downto 24) <= to_bitvector(data);
|
| 606 |
|
|
WHEN 106 => difficulty(23 downto 16) <= to_bitvector(data);
|
| 607 |
|
|
WHEN 107 => difficulty(15 downto 8) <= to_bitvector(data);
|
| 608 |
|
|
WHEN 108 => difficulty(7 downto 0) <= to_bitvector(data);
|
| 609 |
|
|
when others =>
|
| 610 |
|
|
END CASE;
|
| 611 |
|
|
end if;
|
| 612 |
|
|
|
| 613 |
|
|
if((cnt = 4) and (data1 = X"73746f70")) then
|
| 614 |
|
|
stop <= '1';
|
| 615 |
|
|
loaded <= '0';
|
| 616 |
|
|
cnt := 0;
|
| 617 |
|
|
elsif(cnt = 108) then
|
| 618 |
|
|
loaded <= '1';
|
| 619 |
|
|
cnt := 0;
|
| 620 |
|
|
stop <= '0';
|
| 621 |
|
|
else
|
| 622 |
|
|
loaded <= '0';
|
| 623 |
|
|
end if;
|
| 624 |
|
|
|
| 625 |
|
|
if(cnt = 73) then
|
| 626 |
|
|
ntime_max <= to_bitvector(std_logic_vector(unsigned(to_stdlogicvector(data18)) + X"00001c20"));
|
| 627 |
|
|
end if;
|
| 628 |
|
|
|
| 629 |
|
|
|
| 630 |
|
|
|
| 631 |
|
|
end if;
|
| 632 |
|
|
end process;
|
| 633 |
|
|
|
| 634 |
|
|
-- write results to output
|
| 635 |
|
|
sendingdata: process(clk,output,controlrst,stop,loaddata)
|
| 636 |
|
|
variable cnt : integer := 0;
|
| 637 |
|
|
begin
|
| 638 |
|
|
|
| 639 |
|
|
if ((clk = '1') and clk'event) then
|
| 640 |
|
|
|
| 641 |
|
|
if((controlrst = '1') and (stop = '1')) then
|
| 642 |
|
|
cnt := 0;
|
| 643 |
|
|
end if;
|
| 644 |
|
|
|
| 645 |
|
|
if((cnt > 0) and (busy = '0') and (loaddata = '0') and (stop = '0')) then
|
| 646 |
|
|
cnt := cnt+1;
|
| 647 |
|
|
loaddataout <= '1';
|
| 648 |
|
|
elsif((output = '1') and (cnt = 0) and (busy = '0') and (loaddata = '0') and (stop = '0')) then
|
| 649 |
|
|
cnt := cnt+1;
|
| 650 |
|
|
loaddataout <= '1';
|
| 651 |
|
|
else
|
| 652 |
|
|
loaddataout <= '0';
|
| 653 |
|
|
end if;
|
| 654 |
|
|
|
| 655 |
|
|
CASE cnt IS
|
| 656 |
|
|
WHEN 1 => dataout <= nonce_out(31 downto 24);
|
| 657 |
|
|
WHEN 2 => loaddataout <= '0';
|
| 658 |
|
|
WHEN 3 => dataout <= nonce_out(23 downto 16);
|
| 659 |
|
|
WHEN 4 => loaddataout <= '0';
|
| 660 |
|
|
WHEN 5 => dataout <= nonce_out(15 downto 8);
|
| 661 |
|
|
WHEN 6 => loaddataout <= '0';
|
| 662 |
|
|
WHEN 7 => dataout <= nonce_out(7 downto 0);
|
| 663 |
|
|
WHEN 8 => loaddataout <= '0';
|
| 664 |
|
|
WHEN 9 => dataout <= ntime_out(31 downto 24);
|
| 665 |
|
|
WHEN 10 => loaddataout <= '0';
|
| 666 |
|
|
WHEN 11 => dataout <= ntime_out(23 downto 16);
|
| 667 |
|
|
WHEN 12 => loaddataout <= '0';
|
| 668 |
|
|
WHEN 13 => dataout <= ntime_out(15 downto 8);
|
| 669 |
|
|
WHEN 14 => loaddataout <= '0';
|
| 670 |
|
|
WHEN 15 => dataout <= ntime_out(7 downto 0);
|
| 671 |
|
|
when others =>
|
| 672 |
|
|
END CASE;
|
| 673 |
|
|
|
| 674 |
|
|
if(cnt = 15) then
|
| 675 |
|
|
cnt := 0;
|
| 676 |
|
|
end if;
|
| 677 |
|
|
|
| 678 |
|
|
end if;
|
| 679 |
|
|
end process;
|
| 680 |
|
|
|
| 681 |
|
|
end phy2;
|
