What is the difference between uvm_do_with and uvm_do_on_with?

UVM
3

Hello,

I have an additional question on `uvm_do_on_with macro, please:

Is it possible to specify the CONSTRAINT argument using a constraint block?

For example:

class my_vseq extends uvm_sequence#(my_seqit); //Virtual sequence type (uses sequence item type)

 [...]

 my_seq my_seq_h; //Sequence handle

 constraint opcode_cnstr { my_seq_h.opcode inside {0,1,2,3,4}; } //opcode is a seqit field

 task body();
      `uvm_do_on_with(my_seq_h.p_sequencer.my_seqr_h, {opcode_cnstr;} )
      //`uvm_do_on_with(my_seq_h.p_sequencer.my_seqr_h, {opcode inside {0,1,2,3,4};} )
 endtask

endclass

Thanks in advance!