RE: [sv-bc] Bit/Part select of modport named argument

Mantis 3085 is "What is the type of a select of an array?"

11.5.1 says, "A bit-select or part-select of a scalar, or of a real variable or real parameter, shall be illegal."

Shalom

> -----Original Message-----
> From: owner-sv-bc@eda.org [mailto:owner-sv-bc@eda.org] On Behalf Of
> Brad Pierce
> Sent: Saturday, February 05, 2011 7:18 PM
> To: Steven Sharp
> Cc: Surya Pratik Saha; sv-bc@eda.org
> Subject: Re: [sv-bc] Bit/Part select of modport named argument
>
> So we could legally write i.j[0][0][0][0][0][0] and it would yield the
> same as i.j?
>
> -- Brad
>
> On Fri, Feb 4, 2011 at 9:24 PM, Steven Sharp <sharp@cadence.com> wrote:
> > How can you distinguish a scalar from a 1-bit vector in this
> situation?  I think the distinction disappears when used in an
> expression, and the self-determined type is the same.
> >
> >
> > -----Original Message-----
> > From: owner-sv-bc@eda.org [mailto:owner-sv-bc@eda.org] On Behalf Of
> Brad Pierce
> > Sent: Friday, February 04, 2011 11:18 AM
> > To: Surya Pratik Saha
> > Cc: sv-bc@eda.org
> > Subject: Re: [sv-bc] Bit/Part select of modport named argument
> >
> > "The self-determined type of the port expression becomes the type for
> the port." Shouldn't you be able to use the name of the port in any way
> that's consistent with its type? In this case, it has a scalar type,
> and it doesn't make sense to be indexing into a scalar type.
> >
> > -- Brad
> >
> > On Fri, Feb 4, 2011 at 2:15 AM, Surya Pratik Saha
> <spsaha@cal.interrasystems.com> wrote:
> >> Hi,
> >> I have a design like:
> >> interface iface;
> >>    logic [2:0] x;
> >>    modport mport (input .j (x[1]));
> >> endinterface
> >>
> >> module top;
> >> iface i ();
> >> foo f (i.mport);
> >> endmodule
> >>
> >> module foo (iface.mport i);
> >>    initial begin
> >>        i.j[1] = 1; // Bit select of modport named argument
> >>    end
> >> endmodule
> >>
> >> Is bit/part select of modport named argument allowed? I am also not
> >> sure what is the meaning of that if it is allowed. Though some
> >> standard tools do not give any meaningful error.
> >>
> >> --
> >> Regards
> >> Surya
> >>
> >>
> >>
> >>
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