RE: BTF minutes, Nov 15, 2004

From: Stuart Sutherland (stuart@sutherland-hdl.com)
Date: Mon Nov 15 2004 - 17:46:20 PST

  • Next message: Steven Sharp: "BTF minutes for Nov 15, 2004 (amended)"

    Steven,

    I was also in attendance at this meeting. The minutes need to be amended to
    reflect this.

    Stu
    ~~~~~~~~~~~~~~~~~~~~~~~~~
    Stuart Sutherland
    stuart@sutherland-hdl.com
    +1-503-692-0898
      

    > -----Original Message-----
    > From: owner-btf@boyd.com [mailto:owner-btf@boyd.com] On
    > Behalf Of Steven Sharp
    > Sent: Monday, November 15, 2004 12:58 PM
    > To: btf@boyd.com
    > Subject: BTF minutes, Nov 15, 2004
    >
    > Minutes of BTF meeting on Nov 15, 2004, 10:45 AM PDT.
    >
    > In attendance:
    > Steven Sharp
    > Francoise Martinolle
    > Mark Hartoog
    > Kathy McKinley
    > Brad Pierce
    >
    > Group agrees to consider IEEE patent policy read.
    >
    > Meeting minutes approved unanimously.
    >
    > No formal proposal has been made for the uwire net type.
    > There was some discussion of Mark Hartoog's mail about
    > combining uwire with SystemVerilog variable ports. A
    > SystemVerilog variable port presumably can't port collapse
    > with a net. This means that a signal crossing hierarchy may
    > have sections that are variables separating sections that are
    > nets. This separation may isolate a net that is multiply
    > driven from one that is declared uwire. This prevents the
    > desired checking on the full hierarchy of the signal (i.e.
    > the connections that are meant to represent a single wire in
    > the physical design).
    > The obvious solution is to produce a warning for such
    > uncollapsed port connections to variables, like those that
    > the proposal already requires for uncollapsed port
    > connections between nets. This warning tells the user that
    > the uwire restrictions may not be getting fully checked
    > across the hierarchy. This was deemed an adequate solution.
    > Given that there is an adequate solution, the 1364 group need
    > not worry about what solution P1800 might actually adopt.
    >
    > Steven brought up the enhancement for allowing certain system
    > functions in constant expressions (enhancement 387). This is
    > the most likely of the pending enhancements to be proposed,
    > possibly along with some new system functions (enhancement
    > 390). Nobody had any issues to raise with this idea.
    >
    > Meeting adjourned early. Next meeting is in two weeks, Nov 29.
    >
    >
    >

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