// DESCRIPTION: Verilator: Verilog Test module // // This file ONLY is placed under the Creative Commons Public Domain. // SPDX-FileCopyrightText: 2008 Wilson Snyder // SPDX-License-Identifier: CC0-1.0 module t ( input clk ); string mystr; reg [2:0] cyc; initial cyc = 0; always @(posedge clk) begin cyc <= cyc + 1; if (cyc == 1) if (mystr != "case-1") $stop; if (cyc == 4) if (mystr != "case-4") $stop; if (cyc == 6) if (mystr != "bad-default") $stop; if (cyc == 7) begin $write("*-* All Finished *-*\n"); $finish; end end always @(cyc) begin // verilator lint_off CASEINCOMPLETE case (cyc) 3'b000: mystr = "case-0"; 3'b001: mystr = "case-1"; 3'b010: mystr = "case-2"; 3'b100: mystr = "case-4"; 3'b101: mystr = "case-5"; default: mystr = "bad-default"; endcase //$display("with_case: %d = %s", cyc, mystr); end endmodule