// DESCRIPTION: Verilator: Verilog Test module // // This file ONLY is placed under the Creative Commons Public Domain, for // any use, without warranty, 2021 by Wilson Snyder. // SPDX-License-Identifier: CC0-1.0 `define stop $stop `define checkh(gotv,expv) do if ((gotv) !== (expv)) begin $write("%%Error: %s:%0d: got='h%x exp='h%x\n", `__FILE__,`__LINE__, (gotv), (expv)); `stop; end while(0) module t(/*AUTOARG*/ // Inputs clk ); input clk; integer cyc = 0; logic [3:0] bus; // Test loop always @ (posedge clk) begin cyc <= cyc + 1; if (cyc == 0) begin bus <= 4'b0101; end else if (cyc == 1) begin force bus = 4'bzz10; end else if (cyc == 2) begin `checkh(bus, 4'bzz10); end // else if (cyc == 99) begin $write("*-* All Finished *-*\n"); $finish; end end endmodule