RE: [sv-bc] RE: [sv-ec] Upward referencing rules question

From: Steven Sharp <sharp_at_.....>
Date: Tue Feb 12 2008 - 13:55:58 PST
>From: "Brad Pierce" <Brad.Pierce@synopsys.com>

>Doesn't $root always refer to a particular one of the top-level
>instances?  It's not a super-instance that unites the forest of
>top-level instances into a tree, is it?

In Superlog, it was apparently a super-instance that turned the
forest into a tree.  It also contained all the stuff that is now
in various $units.

In SV, you could still regard it as a super-instance, except that
there is no longer anything in it except the top-level instances.
You can also regard it as just a naming convention that forces
resolution of a hierarchical name to a start at a top-level
instance.  The effect on name resolution is the same.  The VPI
model may force a particular view of it though.

It definitely is not a particular one of the top-level instances.

Steven Sharp
sharp@cadence.com


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Received on Tue Feb 12 13:56:35 2008

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