// DESCRIPTION: Verilator: Verilog Test module // // This program is free software; you can redistribute it and/or modify it // under the terms of either the GNU Lesser General Public License Version 3 // or the Perl Artistic License Version 2.0. // SPDX-FileCopyrightText: 2022 Geza Lore // SPDX-License-Identifier: LGPL-3.0-only OR Artistic-2.0 module top ( clk, inc ); input clk; input [31:0] inc; // Cycle count reg [31:0] cyc = 0; // Combinational logic driven from primary input wire [31:0] sum = cyc + inc; always @(posedge clk) begin $display("cyc: %d sum: %d", cyc, sum); if (sum != 2 * cyc + 1) $stop; cyc <= cyc + 1; if (cyc == 100) begin $write("*-* All Finished *-*\n"); $finish; end end endmodule