How to write data in a file from FPGA

module BinarySearch (
input logic clk,
input logic [6:0] target,
input logic valid,
output logic [6:0] D_out
);

reg [6:0] result;
integer file_out;

initial file_out = $fopen("output.txt", "w");

always_ff @(posedge clk) begin
if (valid) begin
result <= D_out;
$fwrite(file_out, "%b\n", result);
end
end

endmodule

This shortened version retains the essential components for storing D_out when valid is high and writes the result to a file during simulation. Adjust the file path and name as needed.

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