Subject: [vhdl-200x] RE: Should we merge 1164 into 1076?
From: Bailey, Stephen (SBailey@model.com)
Date: Wed Dec 17 2003 - 20:34:45 PST
John,
Placing it in an annex is the wrong thing to do as annexes are non-normative. That would actually weaken the standard status of the 1164 package (types and subprograms).
Users are never forced to use any specific capability in the LRM. Tool vendors are supposed to implement support for the full standard. However, enforcement of this is essentially left to the market place.
-Steve Bailey
> Hi Peter.
>
> If we included the 1164 package in 1976 as
> an annex for convenience of users, with some
> explanations, the maintenance
> would be simplified, but there still would
> be the choice of not using 1164.
>
> For example, there is no requirement to use
> TEXTIO.
>
> I don't see the stopping criterion as a problem,
> unless someone sees good reason to start up
> annexation again . . ..
>
> --
> John
> jwill@AstraGate.net
> John Michael Williams
>
> Peter Ashenden wrote:
> > Dear colleagues,
> >
> > [Disclaimer: I am speaking here as a WG member, not as DASC Chair.]
> >
> >>From time to time, it has been suggested that we merge the
> standard logic
> > package definitions into the base VHDL standard document.
> I would like to
> > see if there is currently interest in doing so.
> >
> > The reasons for doing so are:
> >
> > (1) The standard logic types are so widely used in VHDL
> modeling now that
> > they have become an integral part of the language and its
> environment.
> >
> > (2) Maintaining the standards separately is an
> administrative and logistical
> > burden. In particular, ensuring that revisions are synchronized is
> > difficult. Since most of the people involved in P1164 are
> also actively
> > involved in P1076, they could work as a functional team of
> P1076 with less
> > overhead.
> >
> > Reasons agains are:
> >
> > (3) Adding the standard logic types to P1076 would mean all
> VHDL tools would
> > have to provide them, whereas now, a tool vendor could decide not to
> > implement them and still be compliant with 1076.
> >
> > (4) If you merge 1164 into 1076, do you then do 1076.2? And 1076.3?
> > 1076.4? Where does it stop?
> >
> > Comments?
> >
> > Cheers,
> >
> > PA
> >
> > --
> > Dr. Peter J. Ashenden peter@ashenden.com.au
> > Ashenden Designs Pty. Ltd. www.ashenden.com.au
> > PO Box 640 Ph: +61 8 8339 7532
> > Stirling, SA 5152 Fax: +61 8 8339 2616
> > Australia Mobile: +61 414 70 9106
> >
>
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