RE: [sv-ac] P1800 - constant primary as delay in ## : Mantis 1901

From: Eduard Cerny <Eduard.Cerny_at_.....>
Date: Tue Jun 26 2007 - 18:10:35 PDT
In that case yes, it can be easily changed.
ed
 

> -----Original Message-----
> From: owner-sv-ac@eda.org [mailto:owner-sv-ac@eda.org] On 
> Behalf Of Brad Pierce
> Sent: Tuesday, June 26, 2007 5:36 PM
> To: sv-ac@eda-stds.org
> Subject: RE: [sv-ac] P1800 - constant primary as delay in ## 
> : Mantis 1901
> 
> The cycle_delay production that is used in 
> procedural_timing_control and
> clocking_drive is independent of the cycle_delay_range production used
> in sequence_expr.
> 
> -- Brad
> 
> -----Original Message-----
> From: Eduard Cerny [mailto:edcerny@synopsys.COM] 
> Sent: Tuesday, June 26, 2007 2:07 PM
> To: Brad Pierce; sv-ac@eda-stds.org
> Subject: RE: [sv-ac] P1800 - constant primary as delay in ## : Mantis
> 1901
> 
> Brad,
> 
> I think that ## can also be a cycle delay in procedural code and there
> it is not restricted to a constant primary. This is why I did 
> not change
> the syntax but added a constraint. Is that a good reason or I missed
> something?
> 
> Thanks,
> 
> ed
>  
> 
> > -----Original Message-----
> > From: owner-sv-ac@eda.org [mailto:owner-sv-ac@eda.org] On Behalf Of 
> > Brad Pierce
> > Sent: Tuesday, June 26, 2007 4:36 PM
> > To: sv-ac@eda-stds.org
> > Subject: Re: [sv-ac] P1800 - constant primary as delay in ##
> > : Mantis 1901
> > 
> > Ed,
> > 
> > Why not just allow any constant_primary after ##?
> > 
> > Then the rule for cycle_delay_range could be simplified to
> > 
> >  cycle_delay_range ::=
> >        ## constant_primary
> >      | ## [ cycle_delay_const_range_expression ]
> > 
> > plus a footnote that in a cycle_delay_range it shall be 
> illegal for a 
> > constant_primary not to evaluate to a nonnegative integer?
> > 
> > Recall that
> > 
> >      constant_primary ::= ( constant_mintypmax_expression )
> >                       ::= ( constant_expression )
> > 
> > -- Brad
> > 
> > -----Original Message-----
> > From: owner-sv-ac@eda.org [mailto:owner-sv-ac@eda.org] On Behalf Of 
> > Eduard Cerny
> > Sent: Tuesday, June 26, 2007 11:31 AM
> > To: sv-ac@eda-stds.org
> > Subject: [sv-ac] P1800 - constant primary as delay in ## : 
> Mantis 1901
> > 
> > Hi,
> > 
> > I have created a new mantis entry, 1901, and also attached 
> a proposal.
> > 
> > Best regards,
> > ed
> > 
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Received on Tue Jun 26 18:11:01 2007

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