// // Copyright (c) 1999 Steven Wilson (stevew@home.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 - Validate release statement // // D: This code verifies the release statement. // D: It depends on the force statement being // D: functional! (Kinda have to - no way to // D: release if you haven't forced the issue. // D: It is intended to be self checking. // // By: Steve Wilson // module main (); reg working; reg timer; initial working = 1; initial begin #5 ; force working = 0; end initial begin #10; release working; // This releases the force #2 ; working = 1; // This allows a new value onto the reg. end initial begin #20; if(!working) $display("FAILED\n"); else $display("PASSED\n"); end endmodule