RE: [sv-ec] Syntax for covergroup instantiation

Swapnajit,

 

I'm not sure I understand the question?

 

Your code snippet causes two separate yet semantically identical
cover-group instances to be created. The statement at the block level
not only creates a cover-group instance, but also causes the first
instance of the cover-group to be destroyed. In this sense, cover-groups
behave just like class objects.

 

            Arturo

 

________________________________

From: owner-sv-ec@eda.org [mailto:owner-sv-ec@eda.org] On Behalf Of
Swapnajit Chakraborti
Sent: Friday, January 20, 2006 6:44 AM
To: sv-ec@eda.org
Subject: [sv-ec] Syntax for covergroup instantiation

 

As per IEEE P1800 LRM, both the syntax (shown below) for a covergroup

instance declaration are supported.

 

cg cg_inst;  [In this case, user has to instantiate it procedurally,
namely, cg_inst = new; ]

 

cg cg_inst = new;

 

Now, what will be the behavior in the following example?

 

module test;

covergroup cg @(posedge clk);

  coverpoint a;

endgroup

cg cg_inst = new;   // instantiation at module level

..

initial

begin

  cg_inst = new;     // instantiation at block level

  ...

end

endmodule

 

 

Thx,

Swapnajit.