Re: revised comments

From: Jason Woolf (jasonw@cadence.com)
Date: Tue Apr 06 2004 - 07:54:00 PDT

  • Next message: Steven Sharp: "enhancement/2: Enhancement/2: negative genvars allowed"

    Yes, we are removing that restriction.

    -Jason

    > Date: Tue, 06 Apr 2004 15:12:28 +0530
    > From: Kausik Datta <kausikd@cal.interrasystems.com>
    > To: Francoise Martinolle <fm@cadence.com>
    > CC: etf@boyd.com
    > Subject: Re: revised comments
    > X-pstn-levels: (S:99.90000/99.90000 R:95.9108 P:95.9108 M:96.4018 C:90.6865 )
    >
    > Hi,
    >
    > Just one clarification, in IEEE std 1364-2001 Verilog LRM ( Sec
    > 12.1.3.1) it was mentioned that if genvar value set to negative that
    > will be an error.
    > This is not present in the new proposed document.
    > Are we removing this restriction on genvar?
    >
    > Thanks
    > Kausik
    >
    >
    > Francoise Martinolle wrote:
    >
    > > My revised comments taking into account Jason's feedback:
    > >
    > >
    > > Example_12_4_3.v
    > > // Example in section 12.4.3
    > > module top;
    > > parameter genblk2 = 0;
    > > genvar i;
    > >
    > > // generate scope is implicitly named genblk1
    > > if (genblk2) reg a; // top.genblk1.a
    > > else reg b; // top.genblk1.b
    > >
    > > // generate scope is implicitly named genblk02 as genblk2 is already a
    > > declared identifier
    > > if (genblk2) reg a; // top.genblk02.a
    > > else reg b; // top.genblk02.b
    > >
    > > // generate scope would have been named genblk3 but is explicitly named g1
    > > for (i = 0; i < 1; i = i + 1) begin : g1 // block name
    > > // generate scope is implicitly named genblk1 as the first nested
    > > scope inside of g1
    > > if (1) reg a; // top.g1[0].genblk1.a
    > > end
    > >
    > > // generate scope is implicitly named genblk4 since it belongs to the
    > > fourth generate construct in scope "top" Note that the previous
    > > generate construct would have been named genblk3 if it had not been
    > > explicitly named g1
    > > for (i = 0; i < 1; i = i + 1)
    > > // generate scope is implicitly named genblk1 as the first nested
    > > scope of genblk4
    > > if (1) reg a; // top.genblk4[0].genblk1.a
    > >
    > > // generate scope is implicitly named genblk5
    > > if (1) reg a; // top.genblk5.a
    > > endmodule
    > >
    >
    >

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