Re: request $fdebug system task

Not sure what $debug does particularly, but it crosses my mind that
we don't have the equivalent of C's ... argument handling in Verilog-AMS
or SystemVerilog which would make it easier to write your own routines
for this kind of thing. Maybe we should just add something like that
which might be more generally useful.

I assume you can currently get the $fdebug functionality through PLI etc.
at the moment, so it's probably not an essential enhancement, and I would
therefore suggest not adding it at this time but leave it until after
merging with SystemVerilog.

Kev.

> 
> All,
> 
> On behalf of the compact device modelling group in Philips Research I have 
> the request for a $fdebug system call. This would essentially be the same 
> as the $debug system call, but writing to specified file instead of the 
> regular (simulator-dependent) output. The rationale behind this is in 
> separating $debug calls from several devices, allowing regression testing 
> of model performance vs. simulation algorithm, and more efficient 
> post-processing of large amounts of data from $debug calls.
> 
> Here is an example of such use:
> 
>         integer fp;
> 
>         analog begin
>           @(initial_step)
>             fp = fopen("mosmodel.debug");
> 
>           ...
>           $fdebug(fp, "%M: Ids = %g", I(ds));
>           ...
> 
>         end
> 
> Before I make an entry in the Mantis database, I would like to know 
> whether this would be an acceptable proposal.
> 
> Regards,
> Marq
> 
> 
> Marq Kole
> Competence Leader Analog Simulation, Philips ED&T