HDTenEightyP/NetNews huggingface dataset:
Newsgroups: comp.sys.hp48

jlysagh@hubcap.clemson.edu [james joseph lysaght] writes:

> ...under further experimentation I discovered that if I reinserted
> the same 3 batteries in the calculator but in different positions I
> got another 3-4 months out of the set...
> ...Logically I can assume that not every battery is the same so they
> may fail at different times.  This does not account for the effect
> of position in the calculator though...

To which DEB3291@TNTECH.BITNET [David Byrd] replies:

> Could you please clue a fellow EE student, as well as all the other
> subscribers, on *which* battery positions you are talking about?
> I'd do anything to get batteries to last a little longer.

The clue to both of these puzzles is: The Ether Wind.  Batteries tend
to drain at different speeds depending on their Absolute Position in
The Universe due to the effect of the Ether Wind (see any pre-'1881
physics text).  Although most users carry their HP 48 about, and
randomize its position enough, some users apparently are so sedentary
that they keep theirs in one Absolute Position long enough to give the
battery(s) facing one direction constipation, and give the other(s),
uh, a higher rate of drainage.

If you find that the battery(s) facing a particular direction always
die first, I suggest any of the following to neutralize this effect of
the Ether Wind and to make your batteries last as long as possible:

(1) Keep your HP 48 wrapped in several layers of lead foil.  (You can
    have a hole above the display, since the batteries are at the
    other end, and you know the keyboard by heart by now anyhow).  If
    you use the HP 48 a lot, you can avoid lead poisoning by covering
    the lead foil with a layer of aluminum foil.  (Helpful hint: also
    keep your spare batteries refrigerated and individually wrapped in
    lead foil).

(2) Hold the 48 rightside up one week, then upside down the next week,
    and so on.  You'll probably want to switch hands, too, since your
    wrist will tend to cover the display otherwise.  You can get used
    to it in just a few months.

(3) Store your 48 at night on a rotating object, such as a microwave
    oven's turntable.  (Do *not* tie it to the blade of a fan,
    however, since the centrifugal force will distribute the electrons
    unevenly in the batteries causing the electricity to get clogged.)

(4) Stop being such a couch hacker; program while driving, skiing,
    skydiving, and other mobile activities.

(5) Use a marble slab, pool of mercury, laser beam, mirrors, and
    diffraction grating to determine the direction of the Ether Wind,
    and rotate your couch accordingly.

Sorry to belabor the obvious, but people keep asking.

-Joe Horn-    -Peripheral Vision, Ltd.-
"Glad to help!"  -- Petunia
From: akcs.joehorn@hpcvbbs.cv.hp.com (Joseph K. Horn)
Date: Thu, 23 Jul 1992 07:40:02 GMT
Subject: Re: Engineering Math Library
Message-ID: <2a6e6022.1451.1comp.sys.hp48.1@hpcvbbs.cv.hp.com>
Newsgroups: comp.sys.hp48

mantell@ams.SUnysb.EDU (Abraham Mantell) writes:

> Academic Press sells an "HP 48 Engineering Mathematics Library".
> The $140 includes the ROM card and spiral-casebound manual (656 pp).
> Does EduCALC or Elek-Tek sell this same card???

Not yet, but they are looking into it.  -jkh-

From: akcs.kevinm@hpcvbbs.cv.hp.com (Kevin McCarthy)
Date: Sat, 25 Jul 1992 13:40:02 GMT
Subject: Re: Battery Saving/Screen Disabling?
Message-ID: <2a715557.1475.1comp.sys.hp48.1@hpcvbbs.cv.hp.com>
Newsgroups: comp.sys.hp48

In regards to your question about turning the screen off, There IS a
program called FAST which does just that. It turns off the screen to
conserve CPU time and make programs run faster, but it Turns off the
screen which should make it use less power. I think it's on a goodies
disk... And I know it's on IT annex BBS 612-754-1541.
From: George_Lin@mindlink.bc.ca (George Lin)
Newsgroups: comp.sys.hp48
Subject: Re: battery failure in hp48sx
Date: 21 Jul 92 10:15:11 GMT
Organization: MIND LINK! - British Columbia, Canada
Distribution: world

> Pooch writes:
> 
> I'm an EE, so here's my solicited $.02.
> 
>   If the three batteries were manufactured at the same time, and they are the
> same brand, then the little green men proposal seems to be correct.

The batteries still will differ in mAh, how much will depend on quality control
and manufacturing.  This is why NiCad battery packs (with cells in series)
should not be fully discharged.  (ie. fully discharging one cell means reverse
charging another)

I find it odd that changing the order of batteries in series can affect the
energy output.

--

 -------------------------------------------
| George Lin                  | 145.270 MHz |
| George_Lin@mindlink.bc.ca   |   VE7FKU    |
 -------------------------------------------
From: doctor@k9.UUCP (Paul Broe)
Newsgroups: comp.sys.hp48
Subject: Re: Serial No.
Date: 24 Jul 92 05:12:17 GMT
Article-I.D.: k9.doctor.019x
Organization: You have to be kidding...
X-NewsSoftware: GRn 1.16e (7/4/92) by Mike Schwartz & Michael B. Smith

In article <A44126@K2.maus.de> Michael_Hoppe@k2.maus.de (Michael Hoppe) writes:
> Does each HP48 own an individual serial number, which can be recalled via an
> ON-D keystroke?
Not that I know of, but the serial number is on the back. (At least on the 48sx
and the 41cx.)

-- 
----
Paul Broe
Internet: broe@plains.nodak.edu
UUCP: uunet!plains!prototype!k9!doctor (My Amiga 2500/20)    AmigaUUCP 1.16D
BIX: pbroe Compu$erve: too expensive.                        AmigaOS 2.04
Newsgroups: comp.sys.hp48
From: nguye978@Armstrong.EDU
Subject: How to get the ftp programs on my hp48s cal? Help
Organization: Armstrong State College, Savannah, GA
Date: Sun, 26 Jul 1992 20:48:49 GMT



  Hi !
  I just discovered this group a few mintues ago and I really like it.
I downloaded some programs for my hp48s, but i do not know how to get them
on my calculator.  My question is what do I suppose to do with all of these
ftp files that I just downloaded in order to use them on my hp48s.  Most
of the files I downloaded ended with .Z.  I uncompress them, and they
became ascii text.  I have not found any info. about how to get them on my
hp yet.  If anyone could help me, please email to me at the address below
I really appreicate your help.

  thanks a lot in advance

  nguye978@pirates.armstrong.edu

-- 

--------------------------------------------------------------------------------

                             __o          o__      o__      o__      o__
From: akcs.mage@hpcvbbs.cv.hp.com (William H. Blohm)
Newsgroups: comp.sys.hp48
Subject: Re: What non-HP cards work for RAM?
Date: 27 Jul 92 21:40:02 GMT

And if anyone knows the answer, will the 512K RAM card for the
95LX work in the 48SX?  Safely?  I know that all the memory might
not be available since supposedly you can add only 288K to the
48SX, but will it work?  Got a debate going with another guy
here about it, but neither of us is willing to shove one in and
see.  At least not yet!
Newsgroups: comp.sys.hp48
From: mheiskan@hut.fi (Mika Heiskanen)
Subject: Re: XLIB 240 xxx functions in hidden rom !
Reply-To: mheiskan@.vipunen.hut.fi
Organization: Helsinki University of Technology - Finland
Distribution: comp
Date: 30 Jul 92 01:31:10

In article <2378@hydre.enst.fr> courvill@hydre.enst.fr (Marc Bernard de Courville) writes:


   There is a lib 240 (0F0h) in the 48 ! it contains 112 commands
   (from XLIB 240 000 to XLIB 240 111)
   The link table of this library is in ROM at 3834F. Wen decoding it
   you'll find that cmdes addresses are 7E128, 7E1C3, 7E272... (in hidden rom)
   note that evaluating the corresponding XLIB object gives a result, as XLIB
   "knows" how to exec things in hidden rom...

   Does somebody knows what these commands do ?
   (Take care, evaluating them on an empty stack always give a Memory Lost !)

   If nobody knows the use of these commands, we could try to decode them...
   If you're interested in that job, please e-mail me and I'll give you a list of
   cmdes number to decode... (it would be stupid if everybody tried to decode
   XLIB 240 000, no ?)

  I'll soon post another version internals list since it has several new
goodies I found by using RPL library. If I recall right XLIBs 240 001 up to
about 240 040 were internal routines to handle meta objects. More
precicely, they are the UNdispacthed routines used by the RULES
application.  UNdispatched routines meaning that there are separate XLIBs
for different argument types. DISPATCHING ML routines reside in normal ROM
(Found them using MLDB), so I doubt there's any need to use the XLIBs.
I've already used these routines in my new version of Arit library, which
I'm sad to say, is still unfinished. 
  I have the entries on paper at home, but if anybody has the entries list I
posted about a month ago, these routines are somewhere around 56000h in
memory. The list has a big list of primitive ML and XLIBs listed there with
no names. The primitive ML entry points are the dispatching calls for the
XLIBS. This dispatcher uses pointer lists in memory to dispatch on objects
like +, - .. SIN, COS etc.  Seems easy to apply for own purposes.  I'll
explain more accurately in the next entries list.

--
--> mheiskan@vipunen.hut.fi
From: akcs.ryanolson@hpcvbbs.cv.hp.com (Ryan Olson)
Date: Wed, 22 Jul 1992 07:40:02 GMT
Subject: HP-48 BBS
Message-ID: <2a6d0750.1459comp.sys.hp48@hpcvbbs.cv.hp.com>
Newsgroups: comp.sys.hp48

Be sure to call the Annex Information System at (612) 754-1541

          - HP-48 Support (messages/files)
          - Engineering Forums
          - University of Minnesota Institute of Technology Support
          - Easy to use pull-down-menuing system with or without ANSI
Organization: Arizona State University
Date: Thursday, 23 Jul 1992 07:55:08 MST
From: <AUMJW@ASUACAD.BITNET>
Newsgroups: comp.sys.hp48
Subject: Aviation Navigation Prog??

I am interested in locating any aviaiton navigation and other related programs
that may be available for the 48sx. I am begining to write my own simple weight
and balance, speed and distance type of stuff, but would like to know if
something is already available? I have access to anonymous FTP, and would also
like to here about any commercial s/w or expansion cards that are available.

Thank's, Mike Woodward   --   Phoenix, AZ.

internet aumjw@asuvm.inre.asu.edu
prodigy  MFXS51A
fidonet  115/53.9
Newsgroups: comp.sys.hp48
From: kolstad@cae.wisc.edu (Joel Kolstad)
Subject: Re: Diff. between 48SX and 48S
Organization: U of Wisconsin-Madison College of Engineering
Date: 22 Jul 92 19:24:17 CDT

In article <2a6cd078.1446.1comp.sys.hp48.1@hpcvbbs.cv.hp.com> akcs.joehorn@hpcvbbs.cv.hp.com (Joseph K. Horn) writes:
>
>(9) A TI rep at the Consumer Electronics Show stated to me that the TI
>    85 is trying to compete with the 48S, not the 48SX (which has no
>    competition from anybody).

Sure looks like Sharp is trying to play this game, too, with their new EL (?)
8300 and 8500, for $100 and $110 respectively from EduCalc.  They look like
a good deal.

But we all know that RPN the best use to use calculators... :-)

							---Joel Kolstad
From: Michael_Hoppe@k2.maus.de (Michael Hoppe)
Newsgroups: comp.sys.hp48
Subject: Re: Serial No.
Date: Sun, 26 Jul 92 12:33:00 GMT
Organization: MausNet
X-Gateway: MausGate/News 1.11

stevev@miser.uoregon.edu (Steve VanDenver) wrote in C.SYS.HP48:

s>It's even easier than that.  Just look on the back above the
s>battery compartment; it's permanently displayed in a little
s>window, whether the calculator is on or off--you can even tell
s>the serial number if the calculator has no batteries or has
s>suffered total electronics failure!

Well, I knew this before... :-)  So there seemms to be no chance to have
access to the number in progs.

Michael
Newsgroups: comp.sys.hp48
From: destill@mtu.edu (DAVID E. STILL)
Subject: Re: HP28S Speed-up 
Organization: Michigan Technological University
Date: Fri, 31 Jul 1992 15:27:30 GMT

cs1974ab@bnr.ca (Jerry Boonstra) writes:
>Hi everyone.
>
>I know I am posting this in the wrong group, but I can't get a reply in	
>comp.sys.handhelds (and most of you probably owned 28S's in the past).
>
>This might be a FAQ, but could someone tell me how to speed up my 28S?
>I heard there is some SYSEVAL call to toggle the clock speed of the Saturn
>from 2 to 4MHz.  Am I wrong?
>
>Jerry.
>
>P.S. Can anyone see this?  There is a history of problems posting from within
>BNR (security reasons).
>

As a matter of fact, there are a number of programs available to speed up the
Saturn processor on the HP28.  They can be found at the ftp site GMUVAX.GMU.
EDU (I think that's the right address) in the HP28 directory.  Of course, the
best speedup program available can be in the NEW directory at GMUVAX, called
NEWSPEED (I wrote that one! ;) ).  If you don't have ftp access (or I posted
the wrong address), just E-mail me and I'll send you a copy.

************************************************************************       
   ___________________________                                                 
  /___________________________)                                                
  |    >> Stealth Dave >>    /      [@@@>    DESTILL@MTUS5.CTS.MTU.EDU         
  |__       ________________/                                                  
   / ***** / (  /         If you are caught using this address, internet       
  / ***** /____/          will deny any responsibility of its use.  This       
 / ***** /                E-Mail will self-destruct in 10 seconds...           
/_______/
From: curtiws@wkuvx1.bitnet
Newsgroups: comp.sys.hp48
Subject: all mem lost
Date: 24 Jul 92 13:02:54 CDT
Organization: Western Kentucky University, Bowling Green, KY

Hello,

I just bought an hp-28s from another reader on this newsgroup and
i love it(even though i wish i could afford a 48)but ive got bad news.
like i said i just got the machine and was putting a few prewritten
programs in it.i had put about 5 or 6 programs in,the last two i entered 
were son and soff which turn the screen on and off.they worked just fine
but after i turned the screen back on the damn thing dumped memory on me
32k available.bummer.any one got any suggestions as to how i can avoid this
occurence?what did i do wrong or is syseval that touchy?


thanks,


~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~!~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
W.Scott Curtis                       !
                                     !  He Who Dies With The Most Toys,
          friend of all,             !
             foe of few              !              WINS!!!
                                     !          
                                     !                  Napolean Bonaparte
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
              U.K. bound pre-electrical engineering some'buck
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Newsgroups: comp.sys.hp48
Subject: Re: FTP Files
From: omf@tiamat.hacks.arizona.edu (Oscar Fowler)
Date: 30 JUL 92 21:29:07    
Reply-To: omf@tiamat.hacks.arizona.edu
Distribution: world,local
Organization: Sirius Cybernetics Corporation
News-Software: VAX/VMS VNEWS 1.4-a4  

In article <2a785a5d.1502.1comp.sys.hp48.1@hpcvbbs.cv.hp.com>, akcs.matt1@hpcvbbs.cv.hp.com (Matthew C. Mead) writes...
>   Just write a pascal program on the computer that looks for the ascii
>code of ^J and replace it with a CR....pretty easy....read and
>write....you could even do it on the hp48....but it would be slower....
> 

The reason you're having problems is that the system you're downloading
from uses a simple Line Feed (^J) to signify the end of a line, and
a PC uses Carriage Return + Line Feed (^M^J).  I wrote a little
program called ADDCR that I use every time I download a text file (or
source file) from our school's Vax.  If you have a way to convert
UUENCODEd files back to binary, let me know and I'll email the program
to you.

#############################################################################

               "If you can't lick'em, put 'em on with a big piece of tape."
                                                          /   \
Oscar Fowler                                              \    /\
omf@tiamat.hacks.arizona.edu                              | \/    \
                                                          \  |    |
X & 0 = digital murder                         negativland  \|____|

From: akcs.nortaneous@hpcvbbs.cv.hp.com (Jason Christopher Emery)
Date: Mon, 27 Jul 1992 01:40:02 GMT
Subject: Re: all mem lost
Message-ID: <2a734fe0.1474.1comp.sys.hp48.1@hpcvbbs.cv.hp.com>
Newsgroups: comp.sys.hp48

If the HP48SX is any indication of Sysevals, YES!  You could probably
erase your memory very easily.

Some time ago, I also had a 28S, and I've had lots of interesting
experiences using Syseval codes.  Like anyone else would tell you, if you
don't know exactly what to do, make sure you don't have anything on there
to ruin!  I erased my memory many times...

From: akcs.joehorn@hpcvbbs.cv.hp.com (Joseph K. Horn)
Date: Wed, 22 Jul 1992 03:40:02 GMT
Subject: Re: Diff. between 48SX and 48S
Message-ID: <2a6cd078.1446.1comp.sys.hp48.1@hpcvbbs.cv.hp.com>
Newsgroups: comp.sys.hp48

csmro117@uoft02.utoledo.edu writes:

> Would appreciate more info on the difference btween HP48SX and
> HP48S.

(1) The obvious difference: The 48SX is "eXpandable" (you can plug one
    or two cards into it, RAM and/or ROM, to expand its operating
    system and/or its 32K native RAM); the 48S is not.  (Corollary:
    the 48S cannot run much of the best software written for the 48).

    All other differences are minor; here they are anyhow:

(2) The 48S beeps twice as loudly as the 48SX.  (A side effect, in
    more ways than one).

(3) Every 48S (to date) is an "E" version 48; the 48SX can be found in
    five different versions from "A" to "E".  (The 48S has *exactly*
    the same operating system as the 48SX rev E, bit-for-bit).

(4) The port cover on the 48SX extends almost down to the rubber feet,
    and can be removed.  The "port cover" on the 48S only covers the
    very top of the calculator, and cannot be removed.  Their back
    shells differ accordingly.

(5) There is a port number diagram molded into the back shell of the
    48SX, between the upper two feet.  The 48S has no such diagram.

(6) The "[(hp)] HEWLETT PACKARD" logo on the front of the 48SX is a
    separate plastic applique, rising above the surface through a hole
    in the metal overlay (thus allowing card-customized 48SX's to
    sport their own logo).  The 48S has its HP logo merely printed on
    the metal overlay in the same color as the "48" immediately below
    (because the 48S cannot be customized by plug-in cards).

(7) The 48SX has "48SX SCIENTIFIC EXPANDABLE" printed above the
    display; 48S has "48S SCIENTIFIC".  (Besides #6 and #7, their
    fronts look identical).

(8) The 48S costs much less than the 48SX.

(9) A TI rep at the Consumer Electronics Show stated to me that the TI
    85 is trying to compete with the 48S, not the 48SX (which has no
    competition from anybody).

-Joseph K. Horn-   -Peripheral Vision, Ltd.-

From: akcs.kevinm@hpcvbbs.cv.hp.com (Kevin McCarthy)
Date: Thu, 23 Jul 1992 14:40:02 GMT
Subject: Re: HP-48 BBS
Message-ID: <2a6ec197.1459.2comp.sys.hp48.1@hpcvbbs.cv.hp.com>
Newsgroups: comp.sys.hp48

No.

Newsgroups: comp.sys.hp48
From: mheiskan@hut.fi (Mika Heiskanen)
Subject: Re: XLIB 240 xxx functions in hidden rom !
Reply-To: mheiskan@.vipunen.hut.fi
Organization: Helsinki University of Technology - Finland
Distribution: comp
Date: 30 Jul 92 01:34:20

In article <2378@hydre.enst.fr> courvill@hydre.enst.fr (Marc Bernard de Courville) writes:

>   There is a lib 240 (0F0h) in the 48 ! it contains 112 commands
>   (from XLIB 240 000 to XLIB 240 111)

Forgot to mention that some of these XLIBs (latter part) operate on objects
in PORTs. (LIBs and BAKs). Once again, in the next entries list...

--
--> mheiskan@vipunen.hut.fi
Newsgroups: comp.sys.hp48
From: jc@sci.kun.nl (Jan Christiaan van Winkel (ATC))
Subject: Re: batteries
Organization: University of Nijmegen, The Netherlands
Date: Thu, 23 Jul 1992 07:50:01 GMT

In <1992Jul23.095540.9554@waikato.ac.nz> fee@waikato.ac.nz writes:

>Just a reminder to those who think of using rechargeables in their 48
>- the manual specifically warns you not to. 

>Why bother? - you probably spend far more in a year on donuts than 
>batteries and batteries don't make you fat (that is, if you don't have 
>the remote tv controller and still have to heave yourself off the 
>couch every so often to change channels for exercise)

I use rechargeables for my HP48SX because
1) I use recargable AAA batteries for not just my HP, but also for
other gadgets (like fx. a programmable remote controller). So I have 
them at home anyway. Same for the charger.

2) The dutch consumer magazine advises to use NiCad rechargeable
batteries because they are less polluting CONSIDERING THEIR LIFETIME,
compared with alkaline batteries.  It is better to use NiCad batteries
for 10 years, than alkaline batteries for 10 years.  

3) It is plain cheaper. Saying you'll spend more on dougnuts (more
probably ``drop'', ``kroketten'', ``frikandellen'' or ``patat'' for
Jan Modaal (Joe Average) in the Netherlands) does not help. With the
same reasoning, I could quit turning off lights in the home when I leave
a room, choose a 'normal' dish-washer compared with a reduced water 
dish-washer etc. etc.

Summarizing: I've been using NiCads for my HP48SX for 2 years now, it
works great for me, I save some money and I pollute just a bit less than
I would using alkaline batteries.
JC

ps: I do have a back-up set of batteries when the NiCad's are drained.
--
___  __  ____________________________________________________________________
   |/  \   Jan Christiaan van Winkel                        jc@sci.kun.nl
   |       Alternative e-mail addresses: jc@oreo.atcmp.nl and jc@atcmp.nl
__/ \__/ ____________________________________________________________________
From: kraai4712@iscsvax.uni.edu (jim kraai)
Newsgroups: comp.sys.hp48
Subject: Battery Saving/Screen Disabling?
Date: 24 Jul 92 20:02:23 GMT
Organization: University of Northern Iowa

This might have been posted already but ...

THE PROBLEM:

My hp48 spends a lot of time looking for certain kinds of numbers.

I might go through a set of brand new batteries in 3 _days_!

While it's looking for things, the screen is on and of course consuming power.

I've been using the <ON-(MINUS KEY)> combination to turn the screen down.

THE QUESTION:

Is there something I can SYSEVAL (or something like that) to deactivate the
screen during a program and later to reenable it with another command?

Thanks to everyone in advance!

jim kraai
kraai4712@iscsvax.uni.edu
From: akcs.levenson@hpcvbbs.cv.hp.com (william j. levenson)
Date: Thu, 30 Jul 1992 23:40:02 GMT
Subject: Re: Library Question
Message-ID: <2a787ced.1504.1comp.sys.hp48.1@hpcvbbs.cv.hp.com>
Newsgroups: comp.sys.hp48

Hi Sascha,

Port 0 *is* supposed to be there.  It is a partitioned area of memory
that behaves like ROM.  It grows and shrinks as stuff is added to it but
otherwise, I believe it is just like a RAM card that is *not* write
protected.  In fact, when a RAM card is MERGEd, you cannot store anything
in the port that contains that RAM card.  When you store a library in
port 0, the actual library is stored under PORT 0 in the Library
directory identified by its library number.  The Library menu then
contains keys which execute the library programs as well as the PORT 0
menu label.

If there are numbers stored in PORT 0, then they are probably libraries
which, if attached, will show up in the top level of the Library menu as
as said before.

You can also store backup objects in PORT 0 by doing (2: object  1: :0:id
 STO).  The backup objects can then be executed from any directory by
typing :0:id EVAL.

This explaination is as I understand it and may not be precisely correct,
but is pretty close.  Your owners manual describes this stuff in more
detail.

Hope this helps.

Bill Levenson

Newsgroups: comp.sys.hp48