Use `uvm_do macro from uvm_test

UVM
, , ,
5

In reply to chr_sue:

I think I understand that. Do you believe it’s possible to write a macro that takes a sequence or sequence_item and is called from a sequence or somewhere else e.g. uvm_test?

It needs to accept either a SEQ_OR_ITEM

  1. a sequence : calling __seq.create, randomize, __seq.start
  2. sequence_item : calling **__seq.**create_item, **__seq.**start_item, randomize **__seq.**finish_item

In UVM1.2 the selection is done using $cast(__seq, SEQ_OR_ITEM)

It can be called from either

  1. sequence
  2. elsewhere e.g. test case

Here’s another attempt, unfortuately it doesn’t compile due to

Access to protected member ‘create_item’ in class ‘uvm_sequence_base’ is not allowed here.


`define uvm_do_from_test(SEQ_TYPE, SEQ_OR_ITEM, SEQR, PRIORITY, CONSTRAINTS) \
   begin \
     uvm_sequence_/base __seq; \
     uvm_object_wrapper w_; \
     w_ = SEQ_OR_ITEM.get_type(); \
     if (!$cast(__seq,SEQ_OR_ITEM)) begin \
         $cast(SEQ_OR_ITEM, __seq.create_item(w_, SEQR, `"SEQ_OR_ITEM`")); \
         SEQ_OR_ITEM.start_item(SEQ_OR_ITEM, PRIORITY); \
     end else SEQ_OR_ITEM = SEQ_TYPE::type_id::create(`"SEQ_OR_ITEM`"); \
     if (!(SEQ_OR_ITEM.randomize() with CONSTRAINTS)) \
         `uvm_fatal(get_type_name(),$sformatf("Sequence randomization failed")) \
     if (!$cast(__seq,SEQ_OR_ITEM)) SEQ_OR_ITEM.finish_item(SEQ_OR_ITEM, PRIORITY); \
     else __seq.start(SEQR, __seq, PRIORITY, 0); \
   end