Subject: attributes
From: Joseph P. Wetstein (jpw@cbis.ece.drexel.edu)
Date: Wed Jul 11 2001 - 10:12:37 PDT
>
> All,
>
> There seem to be some big issues, as I'm sure most
> of you know by now,
> with the differences in simulation and synthesis
> when using full case and
> parallel case attributes in case-statement design.
>
> While these attributes should be synthesizable, they
> are very dangerous.
> The irony is that, especially in the 'case' of the
> parallel case (sorry
> for the pun), it is most dangerous when it actually
> works correctly!
>
> I will go into this in more depth if it is required
> by the group, but it
> seems to me that the attributes should be allowed
> and should be
> synthesizable, but there should be error checking
> performed by the tools
> to determine if the statements are more deterimental
> than not.
> Additionally a WARNING should be issued whenever
> they are present. At
> least, when a default statement is used in
> conjunction with a full-case,
> and the latter is then ignored, it seems that a
> warning should be
> generated.
>
> Do these provide some reasonable points for
> discussion?
>
> -Joe
>
>
>
> --
> Joseph P. Wetstein, P.E.
> j.wetstein@ieee.org
> (707) 202-0600 fax
> PP/ASEL & KA3VJY [Tech+]
>
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----- End of forwarded message from David W. Bishop -----
-- Joseph P. Wetstein, P.E. j.wetstein@ieee.org (707) 202-0600 fax PP/ASEL & KA3VJY [Tech+]
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