// // Copyright (c) 2001 Stephan Gehring // // (Modified by Stephan Williams to include PASS/FAIL messages.) // // This source code is free software; you can redistribute it // and/or modify it in source code form under the terms of the GNU // General Public License as published by the Free Software // Foundation; either version 2 of the License, or (at your option) // any later version. // // This program is distributed in the hope that it will be useful, // but WITHOUT ANY WARRANTY; without even the implied warranty of // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the // GNU General Public License for more details. // // You should have received a copy of the GNU General Public License // along with this program; if not, write to the Free Software // Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA // module test; reg [7:0] x; initial begin x = 'h4000 + 'hzz; // iverilog doesn't like 'hzz if (x !== 8'hxx) begin $display("FAILED -- x = %b", x); $finish; end $display("PASSED"); end endmodule