Re: Questions on BNF

From: Geoffrey.Coram <Geoffrey.Coram_at_.....>
Date: Mon Sep 04 2006 - 10:58:42 PDT
Graham Helwig wrote:
 
> > 2. absdelay() is mentioned twice, with the first instance mentioning that the second argument (td) should be an analog_constant_expression.
> > It can be dynamic can't it? Should this rule be just one:
> > | absdelay ( analog_expression , analog_expression [ , analog_constant_expression ] )

> 
> LRM 2.2 states thats changes to argument 2 (td) are ignored when
> argument 3 (maxdelay) is present and argument 2 is dynamic when
> argument 3 is not present.

I think you've got this backwards.  Changes to td are ignored
when maxdelay is *not* present.  

Regardless of whether maxdelay is specified, LRM 2.2 allows td
(argument 2) to vary (analog_expression).  But changes to td
will only affect the simulation when maxdelay is specified.

-Geoffrey
Received on Mon Sep 4 10:59:02 2006

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