// DESCRIPTION: Verilator: Verilog Test module // // This file ONLY is placed under the Creative Commons Public Domain, for // any use, without warranty, 2023 by Wilson Snyder. // SPDX-License-Identifier: CC0-1.0 module t(/*AUTOARG*/ // Outputs zeros, // Inputs num ); parameter WIDTH = 1; input logic [WIDTH-1:0] num; output logic [$clog2(WIDTH+1)-1:0] zeros; integer i; always_comb begin i = 0; while ((i < WIDTH) & ~num[WIDTH-1-i]) i = i + 1; zeros = i[$clog2(WIDTH+1) - 1 : 0]; end endmodule