modelsim 是否支持 mailbox

bright1224

我今天用modelsim6.5仿真发现它好像不太支持mailbox，大家仿仿这个例子，我仿真的结果是： Cannot assign an unpacked type to a packed type.
#    Time: 0 ns  Iteration: 0  Region: /prog  File: test_mailbox.sv

在线等


program test_mailbox();
class transaction;
rand bit a;
rand bit b;
endclass

class sender;
mailbox mbx_s2r;
transaction tr;
  function new(mailbox mbx_s2r);
    this.mbx_s2r = mbx_s2r;
  endfunction: new
  task run();
  
  tr=new();
  mbx_s2r.put(tr);
  $display("send transaction: tr.a=%d,tr.b=%d",tr.a,tr.b);  
  endtask
endclass

class receiver;
transaction tr;
mailbox mbx_s2r;

  function new(mailbox mbx_s2r);
    this.mbx_s2r = mbx_s2r;
  endfunction: new

  task run();
  
  mbx_s2r.get(tr);
  $display("get transaction: tr.a=%d,tr.b=%d",tr.a,tr.b);
  endtask
  
endclass
// Top level environment


mailbox mbx_s2r;
initial begin
sender sender;
receiver receiver;
mbx_s2r =new();
sender =new(mbx_s2r);
receiver=new(mbx_s2r);
fork
sender.run();
receiver.run();
join
  $finish;
end
endprogram

bright1224

唉，人气不旺啊

hbhbts

我用的10.0d可以，你下个高版本的试一下！