32-bit-Signed-Vedic-Multiplier/2sComp.v at main · Yellowflash-070/32-bit-Signed-Vedic-Multiplier · GitHub

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`timescale 1ns / 1ps
//////////////////////////////////////////////////////////////////////////////////
// Company:
// Engineer:
//
// Create Date: 20.02.2024 15:49:46
// Design Name:
// Module Name: 2sComp
// Project Name:
// Target Devices:
// Tool Versions:
// Description:
//
// Dependencies:
//
// Revision:
// Revision 0.01 - File Created
// Additional Comments:
//
//////////////////////////////////////////////////////////////////////////////////


module twos_comp_32bit(in,out,en);

//variable declaration for 32bit twos complement calculator
input en;
input [31:0]in;
output reg [31:0]out;

reg [31:0]comp;
integer i;

//logic block
//when en == 1 -- out = 2's comp of inp
//when en == 0 -- out = inp
always @(in,en)
    begin
        if(en)
            begin
                for(i = 0; i<32 ; i = i+1)
                    comp[i] = !in[i];

                out = comp + 1;
            end
        else
        out = in;

    end

endmodule