| // |
| // 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 |