iverilog/ivtest/ivltests/ptest004.v

38 lines
1.0 KiB
Verilog

//
// Copyright (c) 1999 Peter Monta (pmonta@imedia.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
//
module main;
wire [3:0] b;
reg [1:0] a;
reg c;
assign b = c<<a;
initial begin
#1 ;
c = 1'b1;
a = 2'd2;
#1;
if (b===4'b0100)
$display("PASSED");
else
$display("FAILED");
end
endmodule