iverilog/ivtest/ivltests/bitsel2.v

44 lines
1.2 KiB
Verilog

/*
* Copyright (c) 2000 Steve 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
*/
/*
* This checks bit select from/to vectors with odd bit arrangements.
*/
module test;
reg [1:4] a;
reg [4:1] b;
integer i;
initial begin
a = 4'b1100;
for (i = 1 ; i <= 4 ; i = i + 1)
b[i] = a[i];
$display("a=%b, b=%b", a, b);
if (b !== 4'b0011) begin
$display("FAILED -- b == %b", b);
$finish;
end
$display("PASSED");
end
endmodule