Subversion Repositories iso7816_3_master

 
`timescale 1ns / 1ps
`default_nettype none
 
module HammingWeight(
	dataIn,
	hammingWeight
	);
parameter DATA_WIDTH=4;
parameter WEIGHT_WIDTH=2;
 
input wire [DATA_WIDTH-1:0] dataIn;
output reg [WEIGHT_WIDTH-1:0] hammingWeight;
 
always @(*) begin:hamminWeightBlock
	integer i;
	hammingWeight=0;
	for(i=0;i<DATA_WIDTH;i=i+1) begin
		hammingWeight=hammingWeight + dataIn[i];
	end
end
endmodule
 
/*
task hammingWeight
parameter DATA_WIDTH=4;
parameter WEIGHT_WIDTH=2;
input wire [DATA_WIDTH-1:0] dataIn;
output reg [WEIGHT_WIDTH-1:0] hammingWeight;
integer i;
begin
 
	for(i=0;i<DATA_WIDTH;i=i+1) begin
		hammingWeight=hammingWeight + dataIn[i];
	end
 
end
endtask
*/
/*
function hammingWeight
parameter DATA_WIDTH=4;
parameter WEIGHT_WIDTH=2;
input wire [DATA_WIDTH-1:0] dataIn;
output reg [WEIGHT_WIDTH-1:0] hammingWeight;
integer i;
begin
 
	for(i=0;i<DATA_WIDTH;i=i+1) begin
		hammingWeight=hammingWeight + dataIn[i];
	end
 
end
endtask
*/