| /* |
| * Copyright (c) 1999 Daniel Nelsen (dhn@qedinc.com) |
| * |
| * 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 |
| */ |
| // SDW - Modified to say FAILED - or PASSED |
| |
| module main; |
| reg [7:0] a ; |
| reg x, y ; |
| reg error; |
| initial |
| begin |
| error = 0; |
| for (a = 0; a < 32; a=a+1 ) |
| begin |
| // ternary operator is right associative |
| x = a[0] ? a[1] : a[2] ? a[3] : a[4] ; |
| y = a[0] ? a[1] : ( a[2] ? a[3] : a[4] ); |
| if ( x != y ) |
| begin |
| $display( "FAILED a=%b, x=%b != y=%b", a[4:0], x, y ); |
| error =1; |
| end |
| end |
| if(error == 0) |
| $display("PASSED"); |
| end |
| |
| endmodule |
| |
