Re: disabling event functions

Geoffrey,
    Of course you are right, and that is unfortunate. However, as
tolerances must be positive, it would be possible to indicate that a
non-positive tolerance is ignored. In that way
    @(timer(0, 1n, 0, 0))
could represent a disabled timer function with default tolerances.

-Ken

Geoffrey.Coram wrote:
> Ken -
> My first reaction is that, at least for timer(), you would then
> be required to specify the time tolerance:
> 
> timer( start_time [, period [, time_tol [, enable]]] );
> 
> which might or might not be desirable.
> 
> -Geoffrey
> 
> 
> Ken Kundert wrote:
>> Gentlemen,
>>     I have run across another situation where it would have been helpful
>> to be able to disable an event function. Earlier I suggested that
>> setting the direction argument of the cross function to something other
>> than -1, 0, or +1 should disable it. This is important because events in
>> an analog simulator are expensive. I have now found that it would be
>> useful to be able to disable the timer function. And by extension, it
>> seems like a good idea to be able to disable the above function as well.
>>
>> I would like to suggest that we add boolean argument to each of the 3
>> analog event functions (cross, above, & timer) that can be used to
>> disable them.
>>
>> Comments?
>>
>> -Ken
>>
> 

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