Subversion Repositories minimips_superscalar

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--                                                                      --

--                                                                      --

-- miniMIPS Superscalar Processor : delay gate stage                    --

-- based on miniMIPS Processor                                          --

--                                                                      --

--                                                                      --

-- Author : Miguel Cafruni                                              --

-- miguel_cafruni@hotmail.com                                           --

--                                                      December 2018   --

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library IEEE;

use IEEE.std_logic_1164.all;

use IEEE.numeric_std.all;

library work;

use work.pack_mips.all;

entity delay_gate is

port (

    clock : in bus1;

    in1   : in bus1;

    in2   : in bus1;

    in3   : in bus1;

    in4   : in bus1;

    in5   : in bus1;

    in6   : in bus1;

    in7   : in bus1;

    in8   : in bus1;

    in9   : in bus1;

    in10  : in bus1;

    in11  : in bus1;

    in12  : in bus1;

    out1  : out bus1;

    out2  : out bus1;

    out3  : out bus1;

    out4  : out bus1;

    out5  : out bus1;

    out6  : out bus1;

    out7  : out bus1;

    out8  : out bus1;

    out9  : out bus1;

    out10 : out bus1;

    out11 : out bus1;

    out12 : out bus1

);

end delay_gate;

architecture rtl of delay_gate is

signal s1, s2, s3, s4, s5, s6, s7, s8, s9, s10, s11, s12 : bus1;

begin

        s1  <= in1;

        s2  <= in2;

        s3  <= in3;

        s4  <= in4;

        s5  <= in5;

        s6  <= in6;

        s7  <= in7;

        s8  <= in8;

        s9  <= in9;

        s10 <= in10;

        s11 <= in11;

        s12 <= in12;

        -- saidas deixam passar as entradas com meio ciclo de atraso

        process (clock)

        begin

                if falling_edge(clock) then

                        out1  <= s1;

                        out2  <= s2;

                        out3  <= s3;

                        out4  <= s4;

                        out5  <= s5;

         out6  <= s6;

         out7  <= s7;

         out8  <= s8;

                        out9  <= s9;

         out10 <= s10;

                        out11 <= s11;

         out12 <= s12;

       end if;

                        out1  <= s1;

                        out2  <= s2;

                        out3  <= s3;

                        out4  <= s4;

                        out5  <= s5;

         out6  <= s6;

         out7  <= s7;

         out8  <= s8;

                        out9  <= s9;

         out10 <= s10;

                        out11 <= s11;

         out12 <= s12;

        end process;

end rtl;