iverilog/ivtest/ivltests/param_select.v

51 lines
1.4 KiB
Verilog

/*
* Copyright (c) 2002 Stephen Williams (steve@icarus.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 program tests the ability to take bit and part selects
* of parameters. This is actually not legal in Verilog, but
* Icarus Verilog supports it anyhow, as do many (most?) other
* Verilog compilers.
*/
module main;
parameter vec = 16'b0000_1001_0111_1010;
initial begin
if (vec[0] !== 0) begin
$display("FAILED -- %b[0] !== 0", vec);
$finish;
end
if (vec[1] !== 1) begin
$display("FAILED -- %b[1] !== 1", vec);
$finish;
end
if (vec[3:1] !== 3'b101) begin
$display("FAILED -- %b[3:1] !== b101", vec);
$finish;
end
$display("PASSED");
end
endmodule