Re: [Gtkwave-users] Negative timestamps support

[Rida S. <rid...@gm...>]

Hi Tony,

Thanks for your help.
 I tested this on a sample VCD file and it seems working now. I will test
it with larger VCD files and update you.

On Mon, May 18, 2020 at 6:39 PM <by...@nc...> wrote:

> You can't have any negative values in your VCD file.
>
> If for example, -1000 is your minimum time value, then put that in the
> $timezero directive and the rest of the values start at zero and go up
> monotonically.
>
> That is, you dump (actual value - $timezero_value)
>
> See if that works for you.
>
> -Tony
>
> -----------------------------------------
> From: "Rida Shamasneh"
> To: gtk...@li...
> Cc:
> Sent: Monday May 18 2020 4:08:10AM
> Subject: Re: [Gtkwave-users] Negative timestamps support
>
> Hi all,
>
> Thanks for your fast response. I really appreciate that.
>
> I tried to create such a VCD file with "$timezero -1000 $end" but tool
> gets stuck.
>
> Is the attached VCD file valid?
>
> On Mon, May 18, 2020 at 2:53 AM <by...@nc...> wrote:
>
>> The tool doesn't directly support negative timestamps.
>>
>> You can try adding something like this before you initially dump scopes
>> to see if you can achieve the results you want
>>
>> $timezero -1000 $end
>>
>> ...in that case, -1000 would be the initial negative value which would
>> map to a timestamp of #0 as this will offset all the time stamps by the
>> specified value.  I don't know if this will cause issues in the tool using
>> negative values as I have never tested that.
>>
>> -Tony
>>
>> -----------------------------------------
>> From: "Rida Shamasneh"
>> To: gtk...@li...
>> Cc:
>> Sent: Sunday May 17 2020 6:24:39PM
>> Subject: [Gtkwave-users] Negative timestamps support
>>
>> Hi all,
>>
>> First of all; Thanks for this masterpiece you have created :D
>>
>> I have a question regarding negative timestamps; I created a VCD with
>> negative timestamps but GTKWAVE skipped all signals in negative timestamps
>> and started from 0 timestamps :(
>>
>> Is there a configuration variable to enable negative timestamps support
>> in GTKWAVE?
>>
>> --
>> --
>> Thanks,
>> Rida Shamasneh
>> <red...@ho...>
>> _______________________________________________
>> Gtkwave-users mailing list
>> Gtk...@li...
>> <https://lists.sourceforge.net/lists/listinfo/gtkwave-users>
>> https://lists.sourceforge.net/lists/listinfo/gtkwave-users
>>
>
>
> --
> --
> Thanks,
> Rida Shamasneh
> <red...@ho...>
> _______________________________________________
> Gtkwave-users mailing list
> Gtk...@li...
> https://lists.sourceforge.net/lists/listinfo/gtkwave-users
>


-- 
-- 
Thanks,
Rida Shamasneh
<red...@ho...>