Memory/generator.sv at master · chenyangbing/Memory · GitHub

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
`ifndef GENERATOR
`define GENERATOR
`include "transaction.sv"
class generator;

  //declaring transaction class
  rand transaction trans,tr;

  //repeat count, to specify number of items to generate
  int  repeat_count;

  //mailbox, to generate and send the packet to driver
  mailbox gen2driv;

  //event
  event ended;

  //constructor
  function new(mailbox gen2driv,event ended);
    //getting the mailbox handle from env, in order to share the transaction packet between the generator and driver, the same mailbox is shared between both.
    this.gen2driv = gen2driv;
    this.ended    = ended;
    trans = new();
  endfunction

  //main task, generates(create and randomizes) the repeat_count number of transaction packets and puts into mailbox
  task main();
    repeat(repeat_count) begin
    if( !trans.randomize() ) $fatal("Gen:: trans randomization failed");
    tr = trans.do_copy();
    gen2driv.put(tr);
    end
    -> ended;
  endtask

endclass
`endif