69 lines
1.5 KiB
Coq
69 lines
1.5 KiB
Coq
|
/*
|
||
|
|
* Copyright (c) 2001 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
|
||
|
|
*/
|
||
|
|
|
||
|
|
/*
|
||
|
|
* Test the select of a memory word in a continuous assignment.
|
||
|
|
*/
|
||
|
|
|
||
|
|
module main;
|
||
|
|
|
||
|
|
reg [1:0] a [3:0];
|
||
|
|
reg [1:0] s = 0;
|
||
|
|
|
||
|
|
wire [1:0] b = a[s];
|
||
|
|
|
||
|
|
initial begin
|
||
|
|
a[0] = 3;
|
||
|
|
a[1] = 2;
|
||
|
|
a[2] = 1;
|
||
|
|
a[3] = 0;
|
||
|
|
end
|
||
|
|
|
||
|
|
initial begin
|
||
|
|
#1 if (b !== 3) begin
|
||
|
|
$display("FAILED -- s=%b, b=%b", s, b);
|
||
|
|
$finish;
|
||
|
|
end
|
||
|
|
|
||
|
|
s = 1;
|
||
|
|
|
||
|
|
#1 if (b !== 2) begin
|
||
|
|
$display("FAILED -- s=%b, b=%b", s, b);
|
||
|
|
$finish;
|
||
|
|
end
|
||
|
|
|
||
|
|
s = 2;
|
||
|
|
|
||
|
|
#1 if (b !== 1) begin
|
||
|
|
$display("FAILED -- s=%b, b=%b", s, b);
|
||
|
|
$finish;
|
||
|
|
end
|
||
|
|
|
||
|
|
s = 3;
|
||
|
|
|
||
|
|
#1 if (b !== 0) begin
|
||
|
|
$display("FAILED -- s=%b, b=%b", s, b);
|
||
|
|
$finish;
|
||
|
|
end
|
||
|
|
|
||
|
|
$display("PASSED");
|
||
|
|
end // initial begin
|
||
|
|
|
||
|
|
endmodule // main
|