Verilog MIPS32 CPU（九）-- 顶层文件

`timescale 1ns / 1ps
//////////////////////////////////////////////////////////////////////////////////
// Company: 
// Engineer: 
// 
// Create Date: 04/28/2017 07:27:12 PM
// Design Name: 
// Module Name: Interfaces
// Project Name: 
// Target Devices: 
// Tool Versions: 
// Description: 
// 
// Dependencies: 
// 
// Revision:
// Revision 0.01 - File Created
// Additional Comments:
// 
//////////////////////////////////////////////////////////////////////////////////

module Interface(
        input clk,
        input rst,
        output [7:0] o_seg,AN
        );    
    
//    wire [7:0] o_seg,AN;
    wire [31:0] instr,rdata1,rdata2;
    wire [31:0] pc;
    wire [31:0] reg_data;
    wire reg_wena,ram_wena,pc_ena;
    wire [31:0] ram_addr;

    wire [3:0] alu_op;

    wire [31:0] alu_r;
    wire [4:0] rs,rt,rd;
    
    wire [31:0] hi,lo,cop_data;
    
    parameter    ENA        =    1'b1;
    parameter     DIS        =    1'b0;
    
    wire [31:0] pc_in,alu_a,alu_b;
    wire [31:0] ram_data;
    wire [31:0] wdata,exc_addr;
    wire [31:0] mult_hi,mult_lo,div_hi,div_lo;
    wire [4:0] waddr;
    wire [3:0] cause;
    wire z,c,o,n;
    
    wire mtc0,eret;
    wire [2:0] mdu;

    wire [31:0] IRAdd = pc>>2;
    wire [63:0] mul_out;
    wire [31:0] watch_out;
//    wire [31:0] watch_out2=call_code;
    wire seg7_cs,teq_exc;
    
    wire scan_dir;
    
    drive IR(.a(IRAdd[10:0]), .spo(instr));

    pcreg pcreg(
        clk,
        rst,
        pc_ena,
        pc_in,
        pc);

    alu alu(
        alu_a,
        alu_b,
        alu_op,
        alu_r,
        z,c,n,o);
          
    RegFiles regfiles(
        clk,
        rst,
        reg_wena,
        rs,
        rt,
        waddr,
        wdata,
        rdata1,
        rdata2
        );
    
      CP0 CP0(
          clk,rst,teq_exc,mtc0,
          pc,
          rd,rdata2,
          eret,cause,
          cop_data,exc_addr);
      
      ram ram(
          clk,
          ram_wena,
          ram_addr[8:0],
          reg_data,
          ram_data,
          watch_out
          );
          
    
    seg7x16 seg7x16(
        clk,rst,
        watch_out,
        o_seg,AN);
        
    MDU MDU(
        .mdu(mdu),
        .clk(clk),.rst(rst),
        .mul_out(mul_out),
        .rdata1(rdata1),.rdata2(rdata2),
        .hi(hi),.lo(lo),
        .pc_ena(pc_ena));
    
    CtrlUnit CtrlUnit(
        .instr(instr),
        .rdata1(rdata1),
        .rdata2(rdata2),
        .pc(pc),
        .clk(clk),
        .ram_data(ram_data),
        .mul_out(mul_out[31:0]),
        .rs(rs),.rt(rt),.rd(rd),
        .hi(hi),.lo(lo),
        .cop_data(cop_data),
        .exc_addr(exc_addr),
        .teq_exc(teq_exc),
        .mtc0(mtc0),.eret(eret),
        .mdu(mdu), 
        .cause(cause),
        .reg_wena(reg_wena),.ram_wena(ram_wena),
        .waddr(waddr),.ram_addr(ram_addr),
        .wdata(wdata),.reg_data(reg_data),
        .pc_in(pc_in),
        .alu_a(alu_a),.alu_b(alu_b),.alu_r(alu_r),
        .alu_op(alu_op));
endmodule