Re: [vhdl-200x] Standardize GHW format?

Hi Srini,
Thanks. That is a possibility as well.

However, I wasn't proposing to define a new format. What I meant was to use
an existing format (GHW, as defined by the GHDL project, and used by gEDA's
GTKWave as well), and standardize it, or make amendments to it for
standardization.

The reason why the GHDL project defined a new format was because VCD can't
recognize some VHDL datatypes.

I'm not sure what they did for the GHW format - it could very well also be
an extension to the VCD/EVCD format.
Anyway, we'll have to look into this in more detail.

regards, daniel

On Sun, Oct 30, 2011 at 11:12 PM, Srinivasan Venkataramanan <
svenka3@gmail.com> wrote:

> Hello,
> I would suggest we extend VCD/EVCD instead of a new format as
> several ASIC projects/designs use mixed-language IPs (some VHDL, some
> Verilog/SV) and VCD is more in use (can also be used by ATPG tools
> etc.). Also I believe with SV-RTL features adding more data-types to
> Verilog VCD can/should be extended anyway.
>
> My 2 cents.
> Srini
> www.cvcblr.com
>
> On Sun, Oct 30, 2011 at 8:04 PM, Daniel Kho <daniel.kho@gmail.com> wrote:
> > Hi all,
> > I was thinking it may be a good idea to standardize the GHW format that
> is
> > now being used by GHDL (VHDL simulator) and the GTKWave waveform viewer.
> >
> > Verilog has standardized the VCD waveform format, but some VHDL types
> can't
> > be exported to that format since it's mainly Verilog-specific.
> > This was the reason why GHDL chose to define a new waveform format.
> >
> > More information on GHW is here:
> > http://ghdl.free.fr/site/pmwiki.php?n=Main.Features
> > http://ghdl.free.fr/site/pmwiki.php?n=Main.WaveViewer
> >
> > Of course, we can study this new format and see whether we would like it
> > standardized, or we'd rather define a new format.
> >
> > Just my 2 cents.
> >
> > regards, dan
> >
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