File: t_udp_noname.v

package info (click to toggle)
verilator 4.038-1
  • links: PTS, VCS
  • area: main
  • in suites:
  • 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 (48 lines) | stat: -rw-r--r-- 812 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
43
44
45
46
47
48
// DESCRIPTION: Verilator: Verilog Test module
//
// This file ONLY is placed under the Creative Commons Public Domain, for
// any use, without warranty, 2012 by Wilson Snyder.
// SPDX-License-Identifier: CC0-1.0

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

   reg  a;
   wire  o;
   udp (o, a);

   integer cyc;  initial cyc=0;

   // Test loop
   always @ (posedge clk) begin
      cyc <= cyc + 1;
      a <= cyc[0];
      if (cyc==0) begin
      end
      else if (cyc<90) begin
	 if (a != !cyc[0]) $stop;
      end
      else if (cyc==99) begin
	 $write("*-* All Finished *-*\n");
	 $finish;
      end
   end

endmodule

primitive udp(o,a);
   output o;
   input  a;
`ifdef verilator
   wire   o = ~a;
`else
   table
      //o a
      0 :  1;
      1 :  0;
   endtable
`endif
endprimitive