File: t_clocking_bad4.v

package info (click to toggle)
verilator 5.038-1
  • links: PTS, VCS
  • area: main
  • in suites: forky, sid
  • size: 162,552 kB
  • sloc: cpp: 139,204; python: 20,931; ansic: 10,222; yacc: 6,000; lex: 1,925; makefile: 1,260; sh: 494; perl: 282; fortran: 22
file content (43 lines) | stat: -rw-r--r-- 855 bytes parent folder | download | duplicates (3)
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
43
// DESCRIPTION: Verilator: Verilog Test module
//
// This file ONLY is placed under the Creative Commons Public Domain, for
// any use, without warranty, 2022 by Antmicro Ltd.
// SPDX-License-Identifier: CC0-1.0

module t(/*AUTOARG*/
   // Inputs
   clk
   );
   input clk;

   logic in, out;
   clocking cb1 @(posedge clk);
       input in;
       output out;
   endclocking

   int cyc = 0;
   always @(posedge clk) cyc <= cyc + 1;

   clocking cb2 @(negedge clk);
       input #cyc in;
       input #(-1) out;
   endclocking

   task write(output x);
       x = 1;
   endtask

   always ##1;
   always cb1.out = clk;
   assign cb1.out = clk;
   always write(cb1.out);
   always cb1.out <= @(posedge clk) 1;
   always cb1.out <= #1 1;
   always out <= ##1 1;

   always @(posedge clk) begin
       cb1.in = 1;
       $display(cb1.out);
   end
endmodule