RE: [sv-bc] RE: [sv-ac] Interface item reference

Your example is illegal because intf is not an instance name or an
upwards reference.

22.3.1 defines that there must be at least one top level module in a
design, and that top level name is the same as the module name. 22.4
defines when a nested module is implicitly instantiated. 23.3 defines
when a program block is implicitly instantiated.

There is no reference for where an interface is implicitly instantiated
because that functionality does not exist.

Dave


> -----Original Message-----
> From: Surya Pratik Saha [mailto:spsaha@cal.interrasystems.com]
> Sent: Monday, July 23, 2007 9:31 PM
> To: Rich, Dave
> Cc: Bresticker, Shalom; sv-bc@eda-stds.org
> Subject: Re: [sv-bc] RE: [sv-ac] Interface item reference
> 
> Hi,
> The answer of my original question is not yet answered. Also I did not
> get and LRM reference that module and program are implicitly
> instantiated, and interface is not.
> 
> Regards
> Surya
> 
> 
> 
> -------- Original Message  --------
> Subject: Re:[sv-bc] RE: [sv-ac] Interface item reference
> From: Rich, Dave <Dave_Rich@mentor.com>
> To: Bresticker, Shalom <shalom.bresticker@intel.com>, Surya Pratik
Saha
> <spsaha@cal.interrasystems.com>, sv-bc@eda-stds.org
<sv-bc@eda-stds.org>
> Date: Monday, July 23, 2007 11:39:44 PM
> > top-level interfaces are not implicitly instantiated. This was the
> > intent and the LRM does not suggest that they are. It only describes
> > implicit instantiation for modules and programs.
> >
> >
> >> -----Original Message-----
> >> From: owner-sv-bc@server.eda.org
[mailto:owner-sv-bc@server.eda.org]
> >>
> > On
> >
> >> Behalf Of Bresticker, Shalom
> >> Sent: Monday, July 16, 2007 9:29 PM
> >> To: Surya Pratik Saha; sv-bc@eda-stds.org
> >> Subject: [sv-bc] RE: [sv-ac] Interface item reference
> >>
> >> Mantis 1794 asks whether there is an implicit instance of an
> >> uninstantiated program or interface.
> >>
> >> Shalom
> >>
> >>
> >>> -----Original Message-----
> >>> From: owner-sv-ac@server.eda.org
> >>> [mailto:owner-sv-ac@server.eda.org] On Behalf Of Surya Pratik Saha
> >>> Sent: Tuesday, July 17, 2007 7:16 AM
> >>> To: sv-bc@eda-stds.org; sv-ac@eda-stds.org
> >>> Subject: [sv-ac] Interface item reference
> >>>
> >>> Hi,
> >>> Consider the following e.g.:
> >>>
> >>>       1 interface intf;
> >>>       2     int a;
> >>>       3 endinterface
> >>>       4
> >>>       5 module top;
> >>>       6     initial
> >>>       7         intf.a = 1;
> >>>       8 endmodule
> >>>
> >>> Is the hierarchical reference illegal? LRM does not clearly
> >>> mention that hierarchical reference of interface item can
> >>> only be possible by instantiation. Though most of the
> >>> standard simulators fail the case.
> >>>
> >>> --
> >>> Regards
> >>> Surya
> >>>
> >>>
> >>>
> >>>
> >>>
> >>> --
> >>> This message has been scanned for viruses and
> >>> dangerous content by MailScanner, and is
> >>> believed to be clean.
> >>>
> >>>
> >> --
> >> This message has been scanned for viruses and
> >> dangerous content by MailScanner, and is
> >> believed to be clean.
> >>
> >>
> >
> >
> >
> >
> >
> >
> >
> 
> 
> 


-- 
This message has been scanned for viruses and
dangerous content by MailScanner, and is
believed to be clean.