saving previous transaction values

[avihai]

Hello,

I'd like to save in my monitor some values of the previous transaction before the current arrived for some comparing.

What is the right way to do it?

 

Thank you

[karandeep963]

Though its late to answer I guess, here is one solution:

 

 

Create two packets in your monitor as follow; 

class any_monitor extends uvm_monitor;

// rest things

task run_phase (uvm_phase phase);
   my_packet previous_packet  = my_packet::type_id::create("previous_packet");
   my_packet current_packet = my_packet::type_id::create("current_packet ");

  // Processing the transaction

  // Do the needful and before sending the packet through monitor analysis port make a local copy for it as
  // since we send the packet through analysis port in the end where we are all done with our processing , so upto here you have previous packet available
   $cast(previous_packet,current_packet );

   analysis_port.write(current_packet );

  // In this way you can make for more copies , even put these copies in fifo , do whatever flavor your want to implement

endtask

In the above way you can make for more copies , even put these copies in fifo , do whatever flavor your want to implement.

 

Hope it will meet your requirements.

 

Regards,

Karandeep