Hi All

I write the following module comparator, In the testbench, I would like to monitor integer i, when I try to print out the interger using the following statement, it does not work. Is there a way to keep track of the interger in the testbench?

Thank you very much,



module comparator(stag,ptag,tag_equal);
parameter n=16;
input [n-1:0] stag,ptag;

output tag_equal;

reg tag_equal;

integer i;

// initial begin
// tag_equal<=1'b1;
// end

always @(stag or ptag)
for(i=n-1;i>=0;i=i-1)
begin: sweep
if((stag[i]^ptag[i]))
begin
tag_equal<=1'b0;
// break;

// disable sweep;
end
else tag_equal<=1'b1;
end
endmodule


module test_comparator();

parameter n=16;

reg [n-1:0] A,B;

wire tag_equal;

comparator #(n) com(.stag(A),.ptag(B),.tag_equal(tag_equal));

initial begin

$monitor($stime, " stag=%h,ptag=%h,tag_equal=%b, i=%b", A,B,tag_equal,com.i);

#10;

A=16'h000A;
B=16'h000B;

#10;
A=16'h000B;
B=16'h000B;
end // initial begin
endmodule