comp.lang.ada
 help / color / mirror / Atom feed
From: Larry Hazel <lhazel@mindspring.com>
Subject: Re: Using "delay until" in real-time
Date: Wed, 13 Dec 2000 10:53:08 -0600
Date: 2000-12-13T16:53:10+00:00	[thread overview]
Message-ID: <3A37A974.C85EB683@mindspring.com> (raw)
In-Reply-To: 9162gf$1or$1@nnrp1.deja.com



Ted Dennison wrote:
> 
> In article <ntvZ5.6802$bw.582745@news.flash.net>,
>   "Ken Garlington" <Ken.Garlington@computer.org> wrote:
> > For our systems, we usually pick a base iteration rate that can be
> > accurately represented (64Hz  is popular, although I've also seen 50Hz
> > and 80Hz).
> 
> That would indeed be the smart way to do it.
> 
> Unfortunately we have some algorithms that we have to match results with
> that *have* to run at 60Hz. Its Legacy Fortran code, written and
> controlled by developers at working for our customer who have little
> patience with this newfangled "Ada" stuff.
> 
Why don't they have the same rounding problem in FORTRAN?  If 60 Hz can't be
done exactly in the hardware, language shouldn't matter.  Are they using
different hardware where 60 Hz is exact?

-- 
Larry Hazel



  parent reply	other threads:[~2000-12-13 16:53 UTC|newest]

Thread overview: 33+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2000-12-12 16:27 Using "delay until" in real-time Ted Dennison
2000-12-12 18:01 ` Mike Silva
2000-12-12 19:57   ` Ted Dennison
2000-12-12 23:02     ` Mike Silva
2000-12-12 23:49       ` Ted Dennison
2000-12-18  6:26     ` Ray Blaak
2000-12-12 20:00 ` Ken Garlington
2000-12-12 20:40   ` Ted Dennison
2000-12-13  4:02     ` Ken Garlington
2000-12-13 14:29       ` Ted Dennison
2000-12-13 16:53     ` Larry Hazel [this message]
2000-12-13 17:41       ` Ted Dennison
2000-12-12 20:22 ` Keith Thompson
2000-12-12 20:54   ` Ted Dennison
2000-12-13  5:35   ` tmoran
2000-12-12 20:23 ` David C. Hoos, Sr.
2000-12-12 21:58   ` Ted Dennison
2000-12-12 23:18   ` Jeff Carter
2000-12-12 21:18 ` JP Thornley
2000-12-12 22:31   ` Ted Dennison
2000-12-13  8:02     ` Brian Orpin
2000-12-13 17:32     ` JP Thornley
2000-12-12 23:09 ` Ted Dennison
2000-12-13  7:43 ` Brian Orpin
2000-12-15  0:27 ` Frank
2000-12-19  7:50 ` Martin Gangkofer
2000-12-20  3:32   ` Ted Dennison
2000-12-20  5:29     ` tmoran
2000-12-20  7:59     ` Martin Gangkofer
2000-12-20  9:15       ` java servlets JF Harrison
2000-12-20 12:50     ` Using "delay until" in real-time Marin David Condic
2000-12-21  0:08     ` Alejandro R. Mosteo
2000-12-20  3:17 ` Ted Dennison
replies disabled

This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox