From: "Robert S. White" <RSWhite@CACD.Rockwell.com>
Subject: Re: PLGR bridge is falling down...
Date: 1996/06/20
Date: 1996-06-20T00:00:00+00:00 [thread overview]
Message-ID: <31C9CA78.EA4@CACD.Rockwell.com> (raw)
In-Reply-To: 31C6EB54.6EAF@CACD.Rockwell.com
(2'd attempt to get through firewall) Robert S. White wrote:
>
> Antialias9 wrote:
> ...snip...
> > The PLGR is a ...
> > and I hate programming it !
> >
> > (16 bit words on eight bit bus,
> > byte reversed, integers for two
> > of three coordinates with floating
> > point for the third, and the $#%@&*
> > buffer box message which can't be
> > disabled but must be acked!)
> >
> > Fred Kernster,
> > Principal Senior Staff Software Engineering Specialist-Missiles
> > McDonnell-Douglas Brewing Company ^^^^^^^
> > St.Louis MO
>
> Whow...way off cla topic! The PLGR is programmed in Jovial (J73/I).
> It uses a microprocessor that is little endian and its floating point
> ancestry is older than IEEE-754...sorry. The processor architecture is
> like a cross between a PDP-11 and a HP-3000 (not a RISC machine but a
> very clean stack machine). I don't know why you must ACK the buffer box
> (are you there?) interrogation message. I've used simplistic PC based
> software that is passive...only displays PLGR output messages, with no
> problems. We've given away software examples in the past on how to
> interact with CACD GPS receivers.
>
> You are not really programming a PLGR are you? But rather just
> interfacing with it, right? There are more than 50,000 of them out
> there. It has been very successful...just a direct descendant of
> software that was started in the '70s (before Ada and IEEE-754).
>
> If you need help, take it to E-Mail. Why flame at 3:00 am in the
> morning? Oh-Oh this may be a troll...........--
Robert S. White | Opinions expressed are my own.
whiter@crpl.cedar-rapids.lib.ia.us | An Embedded Systems programmer
next prev parent reply other threads:[~1996-06-20 0:00 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
1996-06-18 0:00 PLGR bridge is falling down Antialias9
1996-06-18 0:00 ` Robert S. White
1996-06-20 0:00 ` Robert S. White [this message]
1996-06-24 0:00 ` Stephen M O'Shaughnessy
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