RE: [vhdl-200x-ft] to_string (time, resolution) problem

Hi John,

With the default value of the 4th parameter, the extended version is equivalent to the simpler version. That is, there's no need for two different functions as one can do it all.

-Steve Bailey

> -----Original Message-----
> From: owner-vhdl-200x-ft@eda.org
> [mailto:owner-vhdl-200x-ft@eda.org] On Behalf Of John Michael Williams
> Sent: Tuesday, September 28, 2004 12:22 AM
> To: vhdl-200x-ft@eda.org
> Subject: Re: [vhdl-200x-ft] to_string (time, resolution) problem
>
> Hi Steve.
>
> Why not just allow both functions? Overloading should work.
>
> --
> John
> jwill@AstraGate.net
> John Michael Williams
>
>
> Bailey, Stephen wrote:
>
> > Dave,
> >
> > Don't drop this. Even though the function cannot be
> implemented in VHDL today such that it handles all values
> (easily), it can be semantically defined. The package bodies
> are executable specifications. There's no requirement that
> they be the literal implementation in tools.
> >
> > -Steve Bailey
> >
> >
> >>-----Original Message-----
> >>From: owner-vhdl-200x-ft@eda.org
> >>[mailto:owner-vhdl-200x-ft@eda.org] On Behalf Of David Bishop
> >>Sent: Monday, September 27, 2004 2:18 PM
> >>To: vhdl-200x-ft@eda.org
> >>Subject: [vhdl-200x-ft] to_string (time, resolution) problem
> >>
> >>I was playing around with the to_string function:
> >>
> >> function to_string (
> >> VALUE : in TIME;
> >> JUSTIFIED : in SIDE := right;
> >> FIELD : in WIDTH := 0;
> >> resolution : in TIME := Sim_Resolution
> >> ) return STRING;
> >>
> >>and looking into implementations.
> >>
> >>In the LRM, there is only one way to get "time" into any
> other format:
> >>function "/" (anonymous, anonymous: TIME) return universal_integer;
> >>
> >>Since 1 hr / 1 fs > integer'high there is no way I can do this,
> >>because I need to use "real" math to manipulate the number.
> >>
> >>Can I recommend that we drop this one and go back to:
> >> function to_string (
> >> VALUE : in TIME;
> >> JUSTIFIED : in SIDE := right;
> >> FIELD : in WIDTH := 0
> >> ) return STRING;
> >>
> >>Though I like the idea of the deferred constant "sim_resolution".
> >>It gives you something to check in your testbenches to make
> sure that
> >>you have the correct simulation resolution set.
> >>
> >>If somebody comes up with a clever idea, we can always revisit it
> >>later.
> >>
> >>--
> >>David W. Bishop dbishop@vhdl.org All standard
> disclaimers apply.
> >>
> >
> >
>
>
Received on Tue Sep 28 05:44:58 2004