iverilog/ivtest/ivltests/shift1.v

44 lines
1.2 KiB
Verilog

/*
* Copyright (c) 2001 Stephen Rowland
*
* 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 dummy;
reg [7:0] decode_vec;
wire [7:0] data1;
wire [7:0] data2;
// icarus cant handle this statement
assign data1 = (decode_vec[8'h02>>1] ) ? 8'h55 : 8'h00;
assign data2 = (decode_vec[8'h01 ] ) ? 8'h55 : 8'h00;
initial
begin
#0;
$monitor("%h %h %h", decode_vec, data1, data2);
decode_vec = 8'h02;
#10;
decode_vec = 8'h80;
#10;
decode_vec = 8'h02;
#10;
$finish(0);
end
endmodule