calcu

`timescale 1ns / 1ps
//////////////////////////////////////////////////////////////////////////////////
// Company:
// Engineer:
//
// Create Date: 03.08.2018 15:02:23
// Design Name:
// Module Name: calculadoradysplay
// Project Name:
// Target Devices:
// Tool Versions:
// Description:
//
// Dependencies:
//
// Revision:
// Revision 0.01 - File Created
// Additional Comments:
//
//////////////////////////////////////////////////////////////////////////////////


module calculadoradysplay(
    input logic [15:0] OP1,
    input logic [15:0] OP2,
    input logic [1:0] operacion,
    input logic CLK100MHZ,
    output logic [7:0] D7S,
    output logic [7:0] AN
    );
    logic [31:0]SW = {OP2,OP1};
    logic [7:0] output_an;
    logic [7:0] output_7s;
    logic [8:0] resultado;
    logic [31:0] dsp_num;
    logic [31:0] def_output = {8'b0, SW[7:0], 8'b0, SW[15:8]};//$$$$$$$

    alu4 ALU (
    .button(operacion),
    .numeroA(SW[15:0]),
    .numeroB(SW[31:16]),
    .resultado(resultado)
    );

    drv_7seg DRV7SEG(
    .in_num(dsp_num),
    .clk(CLK100MHZ),
    .D7S(D7S),
    .AN(AN)
    );

    always_comb
    begin
        if (SW == 4'b0001 || SW == 4'b0010 || SW == 4'b0100 || SW == 4'b1000)
            dsp_num = {23'b0, resultado};
        else
            dsp_num = def_output;
    end
endmodule