iverilog/ivtest/ivltests/function3.11D.v

59 lines
1.5 KiB
Verilog

//
// Copyright (c) 1999 Steven 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
//
// SDW - Validate function within a continuous assignment
module main ();
reg error;
reg [3:0] val2;
function [3:0] myfunc ;
input [31:0] in1 ;
myfunc = in1;
endfunction
wire [3:0] val1;
assign val1 = myfunc(val2);
initial
begin
error = 0;
val2 = 4'h0;
# 1 ;
if(val1 !== 4'b0)
begin
$display("FAILED - function3.11D - function within continuous assign(1)");
error = 1;
end
val2 = 32'h8;
# 1 ;
if(val1 !== val2)
begin
$display("FAILED - function3.11D - function within continuous assign(2)");
error = 1;
end
if(error == 0)
$display("PASSED");
end
endmodule // main