How to initial unpacked array with another unpacked array

Question

I have the following queue which I create in my sequence:

bit [31:0] transfers_seq [$];

I enter the following values to the queue:

{{00000000, 12345678, 54871245},{12454612, 00000000, 12367894}}

Now I have to pass the transfers_seq to another queue which in the transaction file by initial function that I wrote in the transaction file

transaction file:

class axi_transaction extends uvm_sequence_item();
   bit [31:0] transfers [$];

function init ( bit [31:0] transfers2init [$]);

endfunction: init

How can I assign the "bit [31:0] transfers2init [$]" to the "bit [31:0] transfers [$]" in the init function?

Kamil Rymarz · Accepted Answer · 2016-09-28 12:52:38Z

2

You can simply assign one queue to another:

transfers = transfers2init;

It will copy the elements of transfer2init to transfers. You can check it here: https://www.edaplayground.com/x/3q3f

answered Sep 28, 2016 at 12:52

Kamil Rymarz

4084 silver badges9 bronze badges

Sign up to request clarification or add additional context in comments.

Comments

Matthew · Accepted Answer · 2016-09-28 13:44:47Z

1

Your function needs to return something and, to return a queue, you need a typedef:

typedef bit [31:0] queue [$];

Then, in your function, you can just copy one queue to the other (as suggested in another answer here):

function queue init ( queue transfers2init);
  init=transfers2init;
endfunction: init

But this is so simple, you don't really need a function.

answered Sep 28, 2016 at 12:37

Matthew

14.1k3 gold badges23 silver badges47 bronze badges

Karan Shah · Accepted Answer · 2016-09-29 04:16:31Z

0

You can directly assign that.

transfer = transfer2init

answered Sep 29, 2016 at 4:16

Karan Shah

2,0021 gold badge32 silver badges47 bronze badges