Re: Regarding support of wreal

Getting back to Sri's comments, 
Verilog - Digital Side is not JUST for digital logic.. 
5 years ago I ran across and (already old) paper on a model for a PLL 
circuit where all the integration for the "analog" nodes was written behaviorally in Verilog.. 
From a language requirements function, digital logic is only PART of what goes into the circuits
that have to be simulated. 
To Kevin's point, As a USER of the language, I like to use wreal PRECISELY to keep a signal
out of the matrix solver, as that is expensive computation.. If I can keep an <N>Gb/s channel signal 
(Before it hits the ADC ) in the 
discrete time solver so that only the Bias circuits and Supply circuits are in the analog solver, my simulations run MUCH faster,
and its JUST AS VALID for ensureing the schematic was put together correctly!!
Jonathan

----- Original Message ----
From: "Bresticker, Shalom" <shalom.bresticker@intel.com>
To: Kevin Cameron <kevin@sonicsinc.com>
Cc: Sri Chandra <sri.chandra@freescale.com>; Jonathan David <jb_david@yahoo.com>; Verilog-A Reflector <verilog-ams@eda.org>; Martin O'Leary <oleary@cadence.com>
Sent: Tuesday, August 8, 2006 12:55:57 AM
Subject: RE: Regarding support of wreal


In digital simulation, what interests me are states 0, 1, x, z.
I can have different resolution functions like wired-and, etc.
But I don't model the states as 3.14 V.

Shalom


> -----Original Message-----
> From: Kevin Cameron [mailto:kevin@sonicsinc.com]
> Sent: Tuesday, August 08, 2006 10:52 AM
> To: Bresticker, Shalom
> Cc: Sri Chandra; Jonathan David; Verilog-A Reflector; Martin O'Leary
> Subject: Re: Regarding support of wreal
> 
> Bresticker, Shalom wrote:
> 
> >Sure. But that is no longer simulation of digital logic.
> >
> >
> Open-collector/pull-up circuits don't count then?
> 
> [As someone who builds simulators, the only meaningful distinction is
> whether you need a matrix solver or not.]
> 
> Kev.
> 
> >
> >
> >>I don't think it's unreasonable to want to do something like sum
> >>currents at a node using a resolution function. There is a lot of
> analog
> >>
> >>
> >>behavioral modeling you can do without using a solver.
> >>
> >>
> >
> >Shalom
> >
> >
> >