Print all elements of Array in the Transaction class

If we print the Transaction class, it will not print our complete Array`s element which is inside the Transaction class. 

How to get the complete element printing of Arrays which is inside Transaction class?

You can implement the below logic in your uvm environment build phase to print the complete Array. Below I have written a piece of code to print all element of array in the transaction class and you can refer the same.

 

  In the environment file, Build phase

    Uvm_default_printer = uvm_default_table_printer;

    Uvm_default_printer.knobs.begin_elements = -1;

Then we can use, wherever you want to use print call inside the environment.

For example:

Print the transaction class without enabling the array printer:

class Packet extends uvm_sequence_item; 
rand bit [15:0] length; 
rand bit [7:0] data[]; 

constraint payload_size_c { data.size inside { [1024 : 4096]};} 
constraint length_c { length == data.size; } 

function new(string name = ""); 
super.new(name); 
endfunction : new 

`uvm_object_utils_begin(Packet) 
`uvm_field_int(length, UVM_ALL_ON|UVM_NOPACK) 
`uvm_field_array_int(data, UVM_ALL_ON|UVM_NOPACK) 
`uvm_object_utils_end 
endclass : Packet 

module test; 
Packet pkt1 = new();

pkt1.print();

endmodule

Output:

-------------------------------------------------------------------------------------------------------------------------

Name                                             Type                                size                      Value

-------------------------------------------------------------------------------------------------------------------------

Pkt1                                             packet                                 -                         @10

   Length                                         integral                             16                      ‘h7D0

   Data                                            da(integral)                      2000                      -

       [0]                                          integral                              8                        ‘h51

       [1]                                          integral                              8                        ‘h6b

       [2]                                          integral                              8                        ‘h66

       …                                              …                                    …                         …

       [1998]                                    integral                              8                        ‘h15

       [1999]                                    integral                              8                        ‘hA2

       [2000]                                    integral                              8                        ‘h5B

-------------------------------------------------------------------------------------------------------------------------

Print the transaction class after enabling the array printer:

-------------------------------------------------------------------------------------------------------------------------

Name                                             Type                                size                      Value

-------------------------------------------------------------------------------------------------------------------------

Pkt1                                             packet                                 -                         @10

   Length                                         integral                             16                      ‘h7D0

   Data                                            da(integral)                      2000                      -

       [0]                                          integral                              8                        ‘h51

       [1]                                          integral                              8                        ‘h6b

       [2]                                          integral                              8                        ‘h66

       [3]                                          integral                              8                        ‘h51

       [4]                                          integral                              8                        ‘h6b

       [5]                                          integral                              8                        ‘h66

       [6]                                          integral                              8                        ‘h51

       [7]                                          integral                              8                        ‘h6b

       [8]                                          integral                              8                        ‘h66

It will print all 2000 elements

-------------------------------------------------------------------------------------------------------------------------

With an above example you can have a display the complete element in the array.