Subversion Repositories mips789

/******************************************************************

 *                                                                *

 *    Author: Liwei                                               *

 *                                                                *

 *    This file is part of the "mips789" project.                 *

 *    Downloaded from:                                            *

 *    http://www.opencores.org/pdownloads.cgi/list/mips789        *

 *                                                                *

 *    If you encountered any problem, please contact me via       *

 *    Email:mcupro@opencores.org  or mcupro@163.com               *

 *                                                                *

 ******************************************************************/

`include "mips789_defs.v"

module mips_core (

        clk,rst,cop_dout,

          din,  ins_i,iack_o,cop_addr_o,

        cop_data_o,cop_mem_ctl_o,  addr_o,

          dout,  pc_o,  wr_en_o

    );

    input clk;

    wire clk;

   /// input irq_i;

    wire irq_i = 0;

    input rst;

    wire rst;

    input [31:0] cop_dout;

    wire [31:0] cop_dout;

  ///  input [31:0] irq_addr;

    wire [31:0] irq_addr=0;

    input [31:0]   din;

    wire [31:0]   din;

    input [31:0]   ins_i;

    wire [31:0]   ins_i;

    output [31:0]   addr_o;

    wire [31:0]   addr_o;

    output [31:0]   dout;

    wire [31:0]   dout;

    output [31:0]   pc_o;

    wire [31:0]   pc_o;

    output [3:0]   wr_en_o;

    wire [3:0]   wr_en_o;

    output iack_o;

    wire iack_o;

    output [31:0] cop_addr_o;

    wire [31:0] cop_addr_o;

    output [31:0] cop_data_o;

    wire [31:0] cop_data_o;

    output [3:0] cop_mem_ctl_o;

    wire [3:0] cop_mem_ctl_o;

    wire NET1375;

    wire NET1572;

    wire NET1606;

    wire NET1640;

    wire NET21531;

    wire NET457;

    wire NET767;

    wire [2:0] BUS109;

    wire [2:0] BUS1158;

    wire [2:0] BUS117;

    wire [2:0] BUS1196;

    wire [31:0] BUS15471;

    wire [4:0] BUS1724;

    wire [4:0] BUS1726;

    wire [4:0] BUS18211;

    wire [2:0] BUS197;

    wire [2:0] BUS2140;

    wire [2:0] BUS2156;

    wire [31:0] BUS22401;

    wire [31:0] BUS24839;

    wire [31:0] BUS27031;

    wire [2:0] BUS271;

    wire [31:0] BUS28013;

    wire [1:0] BUS371;

    wire [31:0] BUS422;

    wire [1:0] BUS5832;

    wire [1:0] BUS5840;

    wire [3:0] BUS5985;

    wire [2:0] BUS5993;

    wire [4:0] BUS6275;

    wire [31:0] BUS7101;

    wire [31:0] BUS7117;

    wire [31:0] BUS7160;

    wire [31:0] BUS7219;

    wire [31:0] BUS7231;

    wire [4:0] BUS748;

    wire [4:0] BUS756;

    wire [4:0] BUS775;

    wire [31:0] BUS7772;

    wire [31:0] BUS7780;

    wire [31:0] BUS9589;

    wire [31:0] BUS9884;

/*

        clk,din,dmem_addr_i,dmem_ctl,

        zZ_din,Zz_addr,Zz_dout,Zz_wr_en,dout

*/

    mem_module MEM_CTL

               (

                   .Zz_addr(addr_o),

                   .Zz_dout(  dout),

                   .Zz_wr_en(  wr_en_o),

                   .clk(clk),

                   .din(BUS9884),

                   .dmem_addr_i(BUS9589),

                   .dmem_ctl(BUS5985),

                   .dout(BUS22401),

                   .zZ_din(  din)

               );

    assign NET21531 = NET1572 | iack_o;

    rf_stage iRF_stage

             (

                 .clk(clk),

                 .cmp_ctl_i(BUS109),

                 .ext_ctl_i(BUS117),

                 .ext_o(BUS7219),

                 .fw_alu_i(cop_addr_o),

                 .fw_cmp_rs(BUS2140),

                 .fw_cmp_rt(BUS2156),

                 .fw_mem_i(BUS15471),

                 .iack_o(iack_o),

                 .id2ra_ctl_clr_o(NET1606),

                 .id2ra_ctl_cls_o(NET1572),

                 .id_cmd(BUS197),

                 .ins_i(  ins_i),

                 .irq_addr_i(irq_addr),

                 .irq_i(irq_i),

                 .pc_gen_ctl(BUS271),

                 .pc_i(BUS27031),

                 .pc_next(  pc_o),

                 .ra2ex_ctl_clr_o(NET1640),

                 .rd_index_o(BUS775),

                 .rd_sel_i(BUS371),

                 .rs_n_o(BUS748),

                 .rs_o(BUS24839),

                 .rst_i(rst),

                 .rt_n_o(BUS756),

                 .rt_o(BUS7160),

                 .wb_addr_i(BUS18211),

                 .wb_din_i(BUS15471),

                 .wb_we_i(NET1375),

                 .zz_spc_i(BUS28013)

             );

    exec_stage iexec_stage

               (

                   .alu_func(BUS6275),

                   .alu_ur_o(BUS9589),

                   .clk(clk),

                   .dmem_data_ur_o(BUS9884),

                   .dmem_fw_ctl(BUS5993),

                   .ext_i(BUS7231),

                   .fw_alu(cop_addr_o),

                   .fw_dmem(BUS15471),

                   .muxa_ctl_i(BUS5832),

                   .muxa_fw_ctl(BUS1158),

                   .muxb_ctl_i(BUS5840),

                   .muxb_fw_ctl(BUS1196),

                   .pc_i(BUS27031),

                   .rs_i(BUS7101),

                   .rst(rst),

                   .rt_i(BUS7117),

                   .spc_cls_i(NET21531),

                   .zz_spc_o(BUS28013)

               );

    r32_reg alu_pass0

            (

                .clk(clk),

                .r32_i(BUS9589),

                .r32_o(cop_addr_o)

            );

    r32_reg alu_pass1

            (

                .clk(clk),

                .r32_i(cop_addr_o),

                .r32_o(BUS422)

            );

    or32 cop_data_or

         (

             .a(cop_dout),

             .b(BUS7772),

             .c(BUS7780)

         );

    r32_reg cop_data_reg

            (

                .clk(clk),

                .r32_i(BUS9884),

                .r32_o(cop_data_o)

            );

    r32_reg cop_dout_reg

            (

                .clk(clk),

                .r32_i(BUS22401),

                .r32_o(BUS7772)

            );

    decode_pipe decoder_pipe

                (

                    .alu_func_o(BUS6275),

                    .alu_we_o(NET767),

                    .clk(clk),

                    .cmp_ctl_o(BUS109),

                    .dmem_ctl_o(cop_mem_ctl_o),

                    .dmem_ctl_ur_o(BUS5985),

                    .ext_ctl_o(BUS117),

                    .fsm_dly(BUS197),

                    .id2ra_ctl_clr(NET1606),

                    .id2ra_ctl_cls(NET1572),

                    .ins_i(  ins_i),

                    .muxa_ctl_o(BUS5832),

                    .muxb_ctl_o(BUS5840),

                    .pc_gen_ctl_o(BUS271),

                    .ra2ex_ctl_clr(NET1640),

                    .rd_sel_o(BUS371),

                    .wb_mux_ctl_o(NET457),

                    .wb_we_o(NET1375)

                );

    r32_reg ext_reg

            (

                .clk(clk),

                .r32_i(BUS7219),

                .r32_o(BUS7231)

            );

    forward iforward

            (

                .alu_rs_fw(BUS1158),

                .alu_rt_fw(BUS1196),

                .alu_we(NET767),

                .clk(clk),

                .cmp_rs_fw(BUS2140),

                .cmp_rt_fw(BUS2156),

                .dmem_fw(BUS5993),

                .fw_alu_rn(BUS1724),

                .fw_mem_rn(BUS18211),

                .mem_We(NET1375),

                .rns_i(BUS748),

                .rnt_i(BUS756)

            );

    r32_reg pc

            (

                .clk(clk),

                .r32_i(  pc_o),

                .r32_o(BUS27031)

            );

    r5_reg rnd_pass0

           (

               .clk(clk),

               .r5_i(BUS775),

               .r5_o(BUS1726)

           );

    r5_reg rnd_pass1

           (

               .clk(clk),

               .r5_i(BUS1726),

               .r5_o(BUS1724)

           );

    r5_reg rnd_pass2

           (

               .clk(clk),

               .r5_i(BUS1724),

               .r5_o(BUS18211)

           );

    r32_reg rs_reg

            (

                .clk(clk),

                .r32_i(BUS24839),

                .r32_o(BUS7101)

            );

    r32_reg rt_reg

            (

                .clk(clk),

                .r32_i(BUS7160),

                .r32_o(BUS7117)

            );

    wb_mux wb_mux

           (

               .alu_i(BUS422),

               .dmem_i(BUS7780),

               .sel(NET457),

               .wb_o(BUS15471)

           );

endmodule