61 lines
1.4 KiB
Coq
61 lines
1.4 KiB
Coq
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//
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// Copyright (c) 1999 Steven Wilson (stevew@home.com)
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//
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// This source code is free software; you can redistribute it
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// and/or modify it in source code form under the terms of the GNU
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// General Public License as published by the Free Software
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// Foundation; either version 2 of the License, or (at your option)
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// any later version.
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//
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// This program is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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//
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// You should have received a copy of the GNU General Public License
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// along with this program; if not, write to the Free Software
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// Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA
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//
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// SDW - Force stmt validation
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//
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// D: This code verifies the force statement
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// D: It is intended to be self checking.
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//
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module main ();
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reg working;
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reg timer;
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initial
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begin
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timer = 1;
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# 5;
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timer = 0;
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# 5 ;
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timer = 1;
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# 5 ;
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end
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initial
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begin
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working = 1;
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#2 ; // Validate that force occurs
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force timer = 0;
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if( timer == 1) working = 0;
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#10 ; // Validate that force stays in effect
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if( timer == 1) working = 0;
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end
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initial
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begin
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#20;
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if(!working)
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$display("FAILED\n");
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else
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$display("PASSED\n");
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end
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endmodule
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