File: t_dpi_qw.v

package info (click to toggle)
verilator 4.038-1
  • links: PTS, VCS
  • area: main
  • in suites: bullseye
  • size: 29,596 kB
  • sloc: cpp: 90,585; perl: 15,101; ansic: 8,573; yacc: 3,626; lex: 1,616; makefile: 1,101; sh: 175; python: 145
file content (42 lines) | stat: -rw-r--r-- 935 bytes parent folder | download
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
// DESCRIPTION: Verilator: Verilog Test module
//
// Copyright 2009 by Wilson Snyder. This program is free software; you can
// redistribute it and/or modify it under the terms of either the GNU
// Lesser General Public License Version 3 or the Perl Artistic License
// Version 2.0.
// SPDX-License-Identifier: LGPL-3.0-only OR Artistic-2.0

module t;

    wire [39:0] out;
    sub a(.value(out));

   import "DPI-C" context function void poke_value(input int i);


   initial begin
       poke_value(32'hdeadbeef);
       if (out !== 40'hdeadbeef) begin
	  $display("[%0t] %%Error: t_dpi_qw: failed", $time);
	  $stop;
       end

       $write("*-* All Finished *-*\n");
       $finish;
   end

endmodule

module sub(value);
    parameter WIDTH = 40;

    output [WIDTH-1:0] value;

    reg [WIDTH-1:0] value;

    task set_value(input bit [WIDTH-1:0] v);
        value = v;
    endtask

    export "DPI-C" task set_value;
endmodule