RE: [1076.1] Proposals for new features open for discussion

From: Peter Ashenden <peter_at_.....>
Date: Wed May 16 2007 - 04:01:52 PDT
Alain,

Annex D of the draft contains a list of changed sections. I've extracted
those pages from P1076-2007/D3.4 for your information.

Beyond that, Jim Lewis and I are preparing a book for publication describing
the new features. If should be published around October this year.

Hope this helps.

Cheers,

PA

--
Dr. Peter J. Ashenden         peter@ashenden.com.au
Ashenden Designs Pty. Ltd.    www.ashenden.com.au
PO Box 640                    VoIP: sip://0871270078@sip.internode.on.net
Stirling, SA 5152             Phone: +61 8 7127 0078
Australia                     Mobile: +61 414 70 9106


> -----Original Message-----
> From: Alain Vachoux [mailto:alain.vachoux@epfl.ch] 
> Sent: Wednesday, 16 May 2007 18:14 PM
> To: Peter Ashenden
> Cc: '1076.1 mailing list'
> Subject: Re: [1076.1] Proposals for new features open for discussion
> 
> 
> Peter,
> 
> Is it possible to get the complete list of changes to VHDL without 
> having to browse through the P1076-2007 LRM to find them out?
> 
> Thanks and regards,
> Alain
> 
> Peter Ashenden wrote:
> > Alain,
> > 
> > It might be worth having the VHDL-AMS WG review the changes 
> to VHDL in 
> > P1076-2007 to see how they affect the AMS features. Many of the 
> > changes are independent of AMS, but others are not. For example, 
> > changes to the way constraints apply to composite types 
> should also be 
> > mirrored in composite natures. It would be worth finding out any 
> > issues early, so that they can be addressed in good time for a 
> > revision of 1076.1.
> > 
> > Cheers,
> > 
> > PA
> > 
> > --
> > Dr. Peter J. Ashenden         peter@ashenden.com.au
> > Ashenden Designs Pty. Ltd.    www.ashenden.com.au
> > PO Box 640                    VoIP: 
> sip://0871270078@sip.internode.on.net
> > Stirling, SA 5152             Phone: +61 8 7127 0078
> > Australia                     Mobile: +61 414 70 9106
> > 
> > 
> >> -----Original Message-----
> >> From: owner-vhdl-ams@server.eda.org 
> >> [mailto:owner-vhdl-ams@server.eda.org] On Behalf Of Alain Vachoux
> >> Sent: Wednesday, 16 May 2007 1:59 AM
> >> To: Muranyi, Arpad
> >> Cc: 1076.1 mailing list
> >> Subject: Re: [1076.1] Proposals for new features open for 
> discussion
> >>
> >>
> >> Arpad,
> >>
> >> It is true that the 1076.1-2007 standard is based on 
> 1076-2002 which 
> >> does not support encryption capabilities. We'll need another IEEE 
> >> ballot to formally have 1076.1 based on 1076-2007 (and to formally
> >> include the 
> >> encryption mechanism in VHDL-AMS), which may not happen very 
> >> soon. This 
> >> is because there are two reasons to proceed to an IEEE 
> >> ballot, whichever 
> >> comes first:
> >> 1) To have significant changes or additions to bring to the 
> >> standard, or
> >> 2) To reach the 5-year deadline for reaffirmation.
> >> Meanwhile, I expect that 1076-2007 will be released and that 
> >> tools will 
> >> support it more or less rapidly, so VHDL-AMS users will also 
> >> be able to 
> >> use encryption facilities. I'm of course assuming that the 
> 1076-2007 
> >> spec is appropriate for 1076.1 as it is.
> >>
> >> Best regards,
> >> Alain
> >>
> >> Muranyi, Arpad wrote:
> >>> Alain,
> >>>
> >>> I wonder whether this is the right approach.  I mean to 
> wait for the
> >>> tool vendors to implement it first and then put it in the spec.  
> >>> Shouldn't it be the other way around?
> >>>
> >>> Arpad ===========================================================
> >>>
> >>> -----Original Message-----
> >>> From: Alain Vachoux [mailto:alain.vachoux@epfl.ch]
> >>> Sent: Tuesday, May 15, 2007 8:43 AM
> >>> To: Mirmak, Michael
> >>> Cc: olivier.rolland@systemsvip.com; Muranyi, Arpad; 1076.1
> >> mailing list
> >>> Subject: Re: [1076.1] Proposals for new features open for 
> discussion
> >>>
> >>> Michael,
> >>>
> >>> As I replied to Arpad, VHDL 1076.1 will naturally endorse the VHDL
> >>> 1076-2007 encryption scheme. As far as we can see, there is
> >> nothing in
> >>> VHDL-AMS that would hinder the use of the protection 
> mechanism. Now
> >>> it is a question of time until EDA tools are upgraded
> >> to support the
> >>> new encryption capabilities.
> >>>
> >>> Best regards,
> >>> Alain
> >>>
> >>> Mirmak, Michael wrote:
> >>>> All,
> >>>>  
> >>>> Per Arpad's note, we are interested in seeing the 
> encryption macro
> >>>> language, currently in both the Accellera 1076 VHDL
> >> updated draft and
> >>>> the IEEE 1364 Verilog specification Annex H, "migrate
> >> down" into the AMS
> >>>> specifications.  IC vendors are concerned about IP
> >> protection, and the
> >>>> macro approach seems to be the most general-purpose way of
> >> accommodating
> >>>> IP protection while taking tool variations and national
> >> policies into
> >>>> account.  As IBIS now supports links to both AMS
> >> languages, IC vendors
> >>>> interested in distributing IBIS+AMS models for signal integrity 
> >>>> simulations are becoming concerned.
> >>>>  
> >>>> The encryption-versus-scrambling debate has been fought on this
> >>>> reflector and others like it before.  As it tends to
> >> generate more heat
> >>>> than light, I would like to avoid it entirely.  Can the macro 
> >>>> approach be expanded to support both?
> >>>>  
> >>>> - Michael Mirmak
> >>>>   Intel Corp.
> >>>>   Chair, EIA IBIS Open Forum  
> >>>>   http://www.eigroup.org/ibis/
> >>>>   http://www.eda-twiki.org/ibis/
> >>>>
> >>>>
> >> 
> ---------------------------------------------------------------------
> >>>> ---
> >>>> *From:* owner-vhdl-ams@server.eda.org 
> >>>> [mailto:owner-vhdl-ams@server.eda.org] *On Behalf Of
> >> *Olivier Rolland
> >>>> *Sent:* Monday, May 14, 2007 12:15 PM
> >>>> *To:* Muranyi, Arpad; 1076.1 mailing list
> >>>> *Subject:* Re: [1076.1] Proposals for new features open
> >> for discussion
> >>>> 1)  Make a standard encryption available in VHDL-AMS.
> >>>>
> >>>> I'm not sure about the added value of a standard 
> encryption scheme,
> >>>> since there is no real security behind it due to legal
> >> limitations (root
> >>>> key delivery to each country legal authorities and
> >> mandatory decryption
> >>>> of the model for compilation purpose which makes a memory
> >> dump efficient
> >>>> to hach the original VHDL-AMS code) and there is a
> >> solution based over
> >>>> scrambling avalaible which make VHDL-AMS encryption useless.
> >>>> Regards. Olivier Rolland
> >>>>  
> >>>> Systems'ViP
> >>>> (Boost your R&D efficiency, implement the functional
> >> Virtual Prototyping
> >>>> with us) <http://www.systemsvip.com> 	
> >>>>
> >>>> 	
> >>>> *Dr. Olivier Rolland*
> >>>> /CEO
> >>>> / 	4 Rue Boussingault
> >>>> F - 67000 Strasbourg
> >>>> <http://www.systemsvip.com>
> >>>> olivier.rolland@systemsvip.com
> >> <mailto:olivier.rolland@systemsvip.com>
> >>>> www.systemsvip.com <http://www.systemsvip.com> 	
> >>>> tel: +33 671 128 130
> >>>> fax: +33 874 761 346
> >>>> mobile: +33 671 128 130
> >>>>
> >>>> 	
> >>>>
> >>>> This e-mail, including attachments, is intended for the
> >> person(s) or
> >>>> company named and may contain confidential and/or legally
> >> privileged
> >>>> information. Unauthorized disclosure, copying or use of
> >> this information
> >>>> may be unlawful and is prohibited. If you are not the intended 
> >>>> recipient,please delete this message and notify the sender
> >>>>
> >>>>
> >>>>
> >>>> Muranyi, Arpad a écrit :
> >>>>> Alain,
> >>>>>
> >>>>> I wonder whether it was possible to add two topics to the list:
> >>>>>
> >>>>> 1)  Make a standard encryption available in VHDL-AMS.
> >>>>> 2)  S-parameter support in the VHDL-AMS language through
> >>>>>     some functions similar to "lpf".
> >>>>>
> >>>>> Thanks,
> >>>>>
> >>>>> Arpad 
> >>>>> ===============================================================
> >>>>>
> >>>>>   
> >>>>>> -----Original Message-----
> >>>>>> From: owner-vhdl-ams@server.eda.org 
> >>>>>> [mailto:owner-vhdl-ams@server.eda.org] On Behalf Of 
> Alain Vachoux
> >>>>>> Sent: Tuesday, May 01, 2007 2:19 AM
> >>>>>> To: 1076.1 mailing list
> >>>>>> Subject: [1076.1] Proposals for new features open for dicussion
> >>>>>>
> >>>>>> Hi,
> >>>>>>
> >>>>>> As mentioned in the minutes of the last working group 
> meeting, a 
> >>>>>> new page has been created on the P1076.1 web site at
> >>>>>> http://www.eda-stds.org/vhdl-ams/wwwpages_new/new_features.html
> >>>>>> which contains first drafts of proposals for new 
> features in the 
> >>>>>> VHDL-AMS language or new standard packages.
> >>>>>>
> >>>>>> The page includes the definition of the process we'll 
> follow and 
> >>>>>> the definition of the form of proposals. It also currently
> >> lists three
> >>>>>> proposals in various degrees of achievement:
> >>>>>> - Mixed Netlists
> >>>>>> - Table Data Types and Lookup Functions
> >>>>>> - Requirements and Verification
> >>>>>>
> >>>>>> I highly encourage you to study these proposals, make
> >> comments and
> >>>>>> contribute to the proposals. The discussion can be done
> >> in the 1076.1
> >>>>>> mailing list vhdl-ams@vhdl.org and in the next working
> >> group meetings.
> >>>>>> Currently there is no deadline on when the discussion
> >> should stop and
> >>>>>> decisions have to be made in the working group.
> >>>>>>
> >>>>>> If you have other suggestions for new features, please consider
> >>>>>> submitting me a document which is close to the form that
> >> is defined in
> >>>>>> the web page.
> >>>>>>
> >>>>>> Best regards,
> >>>>>> Alain Vachoux
> >>>>>>     
> >>>>>   
> >>>> --
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> > 
> > 
> 

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Received on Wed May 16 04:02:40 2007

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