HDTenEightyP/NetNews huggingface dataset:
From: stat656@unixg.ubc.ca (John Paul Morrison)
Subject: Re: Programing the IR
Organization: University of British Columbia, Vancouver, B.C., Canada
Date: Tue, 7 Apr 1992 02:01:05 GMT

In article <21607.95928039@kcbbs.gen.nz> Steve_Grant@kcbbs.gen.nz (Steve Grant) writes:
>Yes a program like that could have potential, like dopplar radar, just 
>use IR signals for a short range radar, send out signals and wait for 
>a return, but would the IR signals bounce back? I guess not! aby comments?
>
The IR signals would scatter around quite a bit, and many would return.
The trouble is that a lot of things would either absorb the radiation,
or would scatter it around too much. If the IR receiver were strong enough
to detect the pico watts of power returned (which it isn't) you would 
see a lot of IR waves returning from a lot of paths, and it might be hard
to distinguish whether the signal bounced right back from the target,
or whether it was reflected back from other non line of sight paths.

Also, there is nothing in the HP48's hardware that could do the timing.
An emitted wave would reflect bacak to the receiver in such a short time
that you could not time it with a microporcessor. (IR travels at the speed
of light, so obviously the reflection would be back in nanoseconds).

--
__________________________________________________________________________
 John Paul Morrison                     |
 University of British Columbia, Canada |
 Electrical Engineering                 |   .sig closed for repairs
From: rdippold@cancun.qualcomm.com (Ron Dippold)
Newsgroups: comp.sys.hp48
Subject: Re: Worn Displays.. HP missed a problem
Date: 6 Apr 92 21:40:42 GMT
Article-I.D.: cancun.rdippold.702596442
Organization: Qualcomm, Inc., San Diego, CA

2 years, Velcro case, no line.


-- 
The shortest distance between two points is under construction.  -- Altito
From: Rob_Prior@mindlink.bc.ca (Rob Prior)
Newsgroups: comp.sys.hp48
Subject: Re: HP48 - questions and comments
Date: 14 Apr 92 00:22:14 GMT
Article-I.D.: mindlink.11413
Organization: MIND LINK! - British Columbia, Canada

] willegen@research.ptt.nl writes:
] 
] 
] How wide is that class-room? An HP48 gets to about 4-5 inches (20 cm) IR!!
] Someone I know is constructing an IR booster card, with IR-receiver AND
] Led (Recieve, amplify, transmit to original receiver). DON'T MAIL ME
] ABOUT IT, I'LL POST WHEN IT IS THERE (IF IT EVER WILL).


I think it depends on a few parameters just how far the 48 will transmit...
Mine has transmitted across a 15ft basement to control a big-screen TV as a
remote.  I think that the main factor here is battery life, though... With new
bateries in my calculator and a friends I can achieve about 3ft of separation
between calculators during transfers.  When the batteries are old, however,
this drops to the stated 4-5 inches.

ROb
--
 _______________________________________________________________
|Rob Prior - President, Still Animation Logo Design, Burnaby, BC|
|---------------------------------------------------------------|
|            Mail to: a634@mindlink.uucp                        |
|   ___  _        or: !uunet!van-bc!rsoft!mindlink!a634         |
|  /__  /_\    "You must find us.... a shrubbery!!!!!!"         |
|____/ /   \____________________________________________________|
From: willegen@research.ptt.nl
Newsgroups: comp.sys.hp48
Subject: Re: Cables (again!)
Date: 6 Apr 92 09:24:36 GMT

In article <1992Mar23.201838.27534@nmsu.edu>, bboswell@dante.NMSU.Edu (BOSWELL) writes:
> I know you all are probably sick of hearing requests but here it goes-
> 
> WHAT are the pinouts on my 48sx's little 4-pin RS232 port?
> 
> And WHAT sort of connector do I need?  I thought a 4-pin molex would work.....
> THINK AGAIN!!!

The pinout is not on hand, but the spacing is not 1/10", but .2 cm
(remember metric?) .1" comes out to .254 cm....... Don't damage your HP...

Christ van Willegen
C.P.vanWillegen@research.ptt.nl
From: gt0178a@prism.gatech.EDU (Jim Burns)
Newsgroups: comp.sys.hp48
Subject: Re: Irrelevant stuff!!!
Date: 7 Apr 92 15:53:06 GMT
Organization: Georgia Institute of Technology

in article <1992Apr7.031400.16978@ux1.cso.uiuc.edu>, mjg51721@uxa.cso.uiuc.edu (Michael James Gebis) says:

> (mentions zapping people who post stupid stuff)
> Just an observation...I don't think I have been GETTING these posts.  I don't

Same here.
-- 
BURNS,JIM (returned student)
Georgia Institute of Technology, 30178 Georgia Tech Station,
Atlanta Georgia, 30332            | Internet: gt0178a@prism.gatech.edu
uucp:	  ...!{decvax,hplabs,ncar,purdue,rutgers}!gatech!prism!gt0178a
From: rrd@hpfcso.FC.HP.COM (Ray Depew)
Date: Mon, 13 Apr 1992 17:11:09 GMT
Subject: Re: Need help with TAR
Organization: Hewlett-Packard, Fort Collins, CO, USA
Newsgroups: comp.sys.hp48

In comp.sys.hp48, c_s02098@stat.appstate.edu writes:

> all of the above).  I am typing tar -x database.tar to try to extract the file
> database.tar.  Anybody have any suggestions?
> 
> William Safley
> c_s02098@conrad.appstate.edu

Try this one:

	tar -xf database.tar

Note the 'f' option.

Good luck
Ray
From: gt4945b@prism.gatech.EDU (MARZEC,STEVEN ERIC)
Newsgroups: comp.sys.hp48
Subject: FOR SALE!!!
Date: 8 Apr 92 21:29:58 GMT
Organization: Georgia Institute of Technology

FOR SALE --- SPARCOM ME (Mechanical Engineering) CARD

for the HP48sx. Over 350 equations. I have all original packaging and
manuals.

                  $75 obo     (EduCalc price --- $90)

Please send e-mail to:  gt4945b@prism.gatech.edu
-- 
MARZEC,STEVEN ERIC
Georgia Institute of Technology, Atlanta Georgia, 30332
uucp:	  ...!{decvax,hplabs,ncar,purdue,rutgers}!gatech!prism!gt4945b
Internet: gt4945b@prism.gatech.edu
From: $liukl@brandonu.ca
Newsgroups: comp.sys.hp48
Subject: How about an APL inside the HP48sx ?!!
Date: 15 Apr 92 02:14:49 GMT
Organization: Brandon University, Brandon, Manitoba, Canada

Have you heard about APL?
It's a powerful language for doing arrays.  The syntax is very simple, I think
it won't be hard to code an APL intepreter into the HP48sx!!! Have anybody
thought about it ?  An APL on HP48sx will be very useful and many scientists and
mathematican will like the HP48sx even more if it has APL !!!
How about LISP in HP48sx ?
Or even Prolog in HP48sx ? My favourist computer programming language...
I've coded a Turing machine in HP48sx for fun.
Let's see how powerful the HP48sx can be.!
Newsgroups: comp.sys.hp48
From: stevev@miser.uoregon.edu (Steve VanDevender)
Subject: Re: Why is COS(90_deg) != 0  ???
Organization: University of Oregon Chemistry Stores
Date: 11 Apr 92 19:38:59

In article <1992Apr12.001007.28755@informatik.uni-erlangen.de> admerlev@cip.informatik.uni-erlangen.de (Arnd Merlevede) writes:

   Hi, anybody there with an explanation, why 
   COS(90_deg)     
   (replace deg with the small upper circle)
   ist not zero ? as is COS(90) ?
   Arnd

Because if you convert 90 degrees to radians, the HP 48 cannot
exactly represent the result.  Because the COS function attempts
to provide the most accurate answers possible within the limits
of representable floating-point numbers, the small difference
between the closest floating-point number to '\pi/2' and what
'\pi/2' really is causes COS to report a non-zero result.  In
fact, you get two different results--one if you do 90_\^o COS and
another if you do 90_\^o 1_r CONV COS, because in the first case
COS operates in the 15-digit intermediate result while in the
other COS gets an approximation to '\pi/2' accurate to only 12
digits.
--
Steve VanDevender 	stevev@greylady.uoregon.edu
"Bipedalism--an unrecognized disease affecting over 99% of the population.
Symptoms include lack of traffic sense, slow rate of travel, and the
classic, easily recognized behavior known as walking."
From: MKHORTOP@MTUS5.BITNET
Newsgroups: comp.sys.hp48
Subject: Automatic files
Date: 13 Apr 92 01:38:12 GMT
Organization: Computing Technology Services, Michigan Technological Univ.

Is there a name I can give a file to make it run automatically
when I turn my HP on or switch directories? (In other words,
an autoexec file)  I would like tp be able to change modes
(DEC to RAD and back again) depending on which directory I change
to.
                               Thanks
                            Matt Hortop
                       mkhortop@mtus5.cts.mtu.edu

P.S. I apologize for not having a creative signature.
Newsgroups: comp.sys.hp48
From: Martin.Kunze@arbi.informatik.uni-oldenburg.de (Martin Kunze)
Subject: ramcards 128KB for sell 
Organization: University of Oldenburg, Germany
Date: Thu, 9 Apr 1992 10:45:44 GMT

I m the developer of the 128KB ramcard.
We have just tastet the beta-version and it worked great
So all of you can order the gamma version.
Many of you will remember that we posted some time before and nothing happend since that time
We hsve done so because we wouldnt sell anything that doesnt wort very well
and after all we had forgotten to install a battery low indicator.
Ouer gamma version is now ready to run it wors fine (with batter low indicator)

So if anyone of you need more memory there is a cheap way of getting it.
128 KB ramcards
full HP compatibel
with battery
with half a year garanty for non man made damage
is the offering
And that is our price
130 .- DM +p&p or 90$+p&p

If you want to order :
Martin Kunze              Jens Kayser
An den Vossbergen 3       Wolfsweg 29
2099 Oldenburg            2900 Oldenburg / Hundsmuehlen
Tel: 0441-42216           0441-504138
     04421-32657

		W-Germany  (dont forget the W because in new Germany
			    one Postnumber can mean two citys)

Coming soon... 512KB ramcards if 4MB chips are in production.
the price will be ... as fare as we can see aprox 300.-DM or 200$
we think that they are avayleble in november or december 1992
Newsgroups: comp.sys.hp48
From: chytil@vlsivie.tuwien.ac.at (Chytil Georg)
Subject: selftest & uart : a question
Organization: Vienna University of Technology, Dept. of VLSI-Design
Date: Tue, 7 Apr 1992 09:19:43 GMT

Since my newly aquired originally HP serial cable won't work I've been 
fiddling around with the self tests :

Right next to the U_LB ( <ON> <D> <PRG> ), which is documented and works
fine, there sits an uart-test ( <ON> <D> <CST> ), which comes up with
UART 00002 .

I'm not sure what this code means, can someone provide a clue ?

BTW, do You also regard the docs on the development kit as inferior ? Best I
can say is that they printed it on recycled paper :-( ....
It just lacks _any_ useful information beside some startup procedures ...

						Georg

--
<-------Trust not a man who's rich in flax, his morals may be sadly lax------->
Chytil Georg Ex-Systemdamager@Dep. of VLSI (vlsivie) TU Wien  1040 Wien Austria
chytil@vlsivie.tuwien.ac.at      chytil@egh780.una.ac.at        +43/222/3718445
#include <extra_disclaimer.h>         Don't panic!       Fax: +43/(0)222/569697
Newsgroups: comp.sys.hp48
From: allbery@NCoast.ORG (Brandon S. Allbery KF8NH)
Subject: Re: Wish list, serial ports, and a wacky idea.
Reply-To: allbery@ncoast.org (Brandon S. Allbery KF8NH)
Organization: North Coast Public Access *NIX, Cleveland, OH
Date: Fri, 10 Apr 1992 00:19:58 GMT
Followup-To: comp.sys.hp48

As quoted from <1992Apr6.060249.28864@ux1.cso.uiuc.edu> by rkbg2554@uxa.cso.uiuc.edu (Robert K. Brunner):
+---------------
| A full RS-232 serial port has 25 pins (It also uses 12 v signals, I
| believe).  The nine-pin version was invented by IBM when the PC-AT
+---------------

+/- 3 to 15 volts DC, according to the standard.  I've occasionally wondered
why HP doubled the calculator voltage to drive the serial port, given that
4.5vdc is within the standard; then again, it probably won't work on those
selfsame IBMs, because IBM wouldn't know a (non-IBM-invented) standard if it
stepped in it and therefore probably speced 9vdc or some such non-EIA-232D
behavior.

++Brandon
-- 
Brandon S. Allbery, KF8NH [44.70.4.88]        allbery@NCoast.ORG
Senior Programmer, Telotech, Inc. (if I may call myself that...)
From: edp@math.zko.dec.com (Eric Postpischil)
Newsgroups: comp.sys.hp48
Subject: Re: A new and improved HP48?
Date: 6 Apr 92 17:59:17 GMT
Reply-To: edp@math.zko.dec.com (Eric Postpischil)
Organization: Digital Equipment Corporation

In article <1992Apr6.102146.65603@research.ptt.nl>,
willegen@research.ptt.nl writes:

>We (that is STORC, the dutch users-group for HP28 and HP48 calcs) don't think
>thet HP is gonna bring out something new soon. Remember that the HP28 was
>brought out under pressure (wasn't it?) and the HP48 is a follow up for
>the HP41 AND HP28.

I got a 95 a few months ago.  I think calculators have been growing
upwards and computers have been growing downwards, and there is no
longer much room between them.  I have the Derive math package with the
95, which gives it symbolic math capabilities significantly more
powerful and faster than the 48's.  The 95 provides a variety of other
useful features as well, and has lots more memory.  By the time
something beyond the 48 would be available, computers are likely to have
met it in price and performance.


                                -- edp (Eric Postpischil)
                                "Always mount a scratch monkey."
                                edp@alien.enet.dec.com
From: bson@kropotkin.gnu.ai.mit.edu (Jan Brittenson)
Newsgroups: comp.sys.hp48
Subject: Re: New 48 Stuff at EduCALC
Date: 6 Apr 92 22:16:18 GMT
	<29cf1a33.878.1comp.sys.hp48.1@hpcvbbs.cv.hp.com>
	<1992Apr6.102937.65605@research.ptt.nl>
Organization: nil

In article <1992Apr6.102937.65605@research.ptt.nl> willegen@research.ptt.nl writes:

 > Oops. The calc found a pointer (to the error message) and found out
 > that the RAM was switched. One problem though... The card has been
 > switched out and can *NEVER* be switched back again.... Pulling the
 > batteries will work ofcourse, but also remove the RAM card, becasue
 > the HP lives on the RAM card when its own bats are out.

   My attodollar worth of advice here is to try ON-C before anything
else. Then try poking an official MacDefilibration (TM) instrument in
the little hole under the forward left/right paw. THEN PANIC - pull
all cards, then the batteries, reinsert and repeat a few times.
Finally apply the ultimate in calculand electro-shock therapy -
reverse the batteries <gasp>!

--
						-- Jan Brittenson
						   bson@gnu.ai.mit.edu
From: willegen@research.ptt.nl
Newsgroups: comp.sys.hp48
Subject: Re: HP48 - questions and comments
Date: 13 Apr 92 10:39:28 GMT

In article <1992Apr10.220929.23579@ux1.cso.uiuc.edu>, mjg51721@uxa.cso.uiuc.edu (Michael James Gebis) writes:
> sterba@vax.sonoma.edu writes:
> 
>>Alright.  I admit it.  I am a beginner.
> 
>>Also, these expansion RAM cards...  What sizes (and according prices) are
>>available?  Does large memory speed up or slow down general operations and
>>program executions?
> 
>>Are there Hardcover cases for the 48SX?  I really think Hewlett Packard screwed
>>up on the case they include with the machine...  This is just about the most
>>expensive 'calculator' (here I dare calling it that again) around and they
>>don't include a decent protection for it.  Wouldn't it be great (and cheap) to
>>have a cover similar to those available with great majority of Texas
>>Instrument calculators?  They slide on a groove and when you use the
>>calculator, they form the base.  When you want to carry it around in your bag,
>>the sliding case covers the display and the keybord.  Even their $10 product
>>has it, why couldn't HP's $300+ one, too? Zheeeez....
> 
> I don't know about this....Those TI calculators, IMHO, look cheap!  Also, HP
> did add 'decent protection' to the HP....a nearly indestructible case!  I've
> dropped my caculator, carried it on the bottom of a book filled backpack, and
> had some doofus SIT ON IT....and there is absolutely nothing wrong with it!
> 
>>  Infra-red
>>file transfers (ie. across the classroom during exams), cordless printer, all
> 
> Sure, if the classroom is three feet wide......
> 
>>Thanks for your help with the earlier-listed problems...
> 
>>Peter Sterba
> 
> 
> Mike Gebis  mjg51721@uxa.cso.uiuc  OR  m-gebis@uiuc.edu
> "AIM MY SMILING SKULL AT YOU"

How wide is that class-room? An HP48 gets to about 4-5 inches (20 cm) IR!!
Someone I know is constructing an IR booster card, with IR-receiver AND
Led (Recieve, amplify, transmit to original receiver). DON'T MAIL ME
ABOUT IT, I'LL POST WHEN IT IS THERE (IF IT EVER WILL).

CU
Christ

<<< >>> (Empty .sig)
From: willegen@research.ptt.nl
Newsgroups: comp.sys.hp48
Subject: Re: About multi-bank cards
Date: 8 Apr 92 07:22:27 GMT

In article <TT.92Apr6184942@tarzan.jyu.fi>, tt@tarzan.jyu.fi (Tapani Tarvainen) writes:
> In article <1992Apr6.102937.65605@research.ptt.nl> willegen@research.ptt.nl writes:
> 
>>[the 256 and 512K cards] consist of 2 and 4 *seperate* 128 k cards.
>>Bank-switch software is on the card. *BEWARE*. Crashes are made easy
>>for you....
> 
>>Example:
> 
>>You run a program from 'card' 1, that gives you the error:
>>Very Wrong Error: Totally Wrong Input
> 
>>You switch to 'card' 2 to play a game. You're finished playing (about +/-
>>5 hours later?) and want to retrieve the error. You type ERRM and the calc
>>displays:
> 
>>Insert RAM, press ON.
> 
> Just wondering:  could it be possible to catch this error and switch
> banks automatically?  With a weird machine-language library, of course ...
> aren't there hooks for catching errors, or is this one hard-coded?
> Has anybody tried this?
> 
> While at it, has anybody built a library that automatically switches
> banks as needed: only heads of functions visible always, along with
> code that checks which bank the rest is in and switches it on as needed?
> --
> Tapani Tarvainen    (tarvaine@jyu.fi, tarvainen@finjyu.bitnet)

The 'strange' library (the one that makes your calc call you names at errors)
catches error-messages and replaces them by another string. The problem here
is (I think) that the error was not generated by the HP directly, but 
indirectly because of missing RAM. You might have a point.

There is another problem. To *which* bank are you going to switch?.

Christ van Willegen
willegen@research.ptt.nl

B.t.w. sorry for all the crap. Couldn't find the 'Delete line' on this editor.
And there's just too much to DELete here......
From: willegen@research.ptt.nl
Newsgroups: comp.sys.hp48
Subject: Re: SYSEVAL codes?
Date: 13 Apr 92 10:50:31 GMT

In article <1992Apr13.044818.3682@ux1.cso.uiuc.edu>, jst50986@uxa.cso.uiuc.edu (Jack S. Tan) writes:
> Hi, guys!
> 
> I was wondering where I could get a list of the SYSEVAL codes for the HP48SX.
> Thanks!
> 
> Jack Tan
> jst50986@uxa.cso.uiuc.edu

Try to get TOOLS.EXE from HP. It's a package consisting of an RPL-compiler,
SASM (Saturn-ASseMbler) and some doc (about 500K). It has a list of about
2000 SYSEVALs for the HP48. I have it on floppy, but don't have on hand
how much it costs (including p&p that is, the floppy is about $3). Anyone
interested? If there is enough interest, I'll ask the proce and start sending
out floppies.

Christ

P.s. You can also write a note to
STORC
PO Box 616
5600 AP  Eindhoven
The Netherlands

saying you want the floppy and I'll write back to you.

CU
Christ
<<< Null pointer assignment, program aborted >>>
From: charliep@hpcvra.cv.hp.com (Charles Patton)
Newsgroups: comp.sys.hp48
Subject: Re: Syseval wanted
Date: 16 Apr 92 16:23:41 GMT
Article-I.D.: hpcvra.111740002
Organization: Hewlett-Packard Co., Corvallis, OR, USA

Jerry Cipriani (cipriani@viking.gatech.edu) writes:

>>On the HP48sx, the commands DBUG, SST, and SST(down arrow)
>>are available only if you press the corresponding key in the
>>Program Control menu.  I would like to be able to call these,
>>(particually the DBUG and SST(down arrow)) from within a 
>>program.
  [.....]
>>Could someone please:
>>
>>1) Give the numbers to me,
>>
>>2) Tell me where I could get them,
>>
>>3) Or maybe suggest another method.
>>

The command DBUG acts entirely as if it inserted a HALT in the
beginning of a program and then executed the program (this is
essentially what you had to do on the '28 anyway.) In this regard,
DBUG is already a programmable construct: its called HALT. For this
reason you can see why a programmable SST, while possible, is not
too sensible: if the program is halted, how can it execute SST?

While it is possible to write a program which can serve as an RPL
interpreter and hence "single-step" through another RPL program given
as a parameter to the routine, it is by no means a simple task. With
the user in the loop, it is pretty easy: insert HALT in your program
and repeatedly press SST. With the user out of the loop, it's not so
easy. One method which comes to mind would be to schedule repeating
executing alarms which call the syseval address of SST (N.B. I haven't
tried this....)

*******************************************************
** Charles M. Patton                                 **
**                                                   **
** charliep@cv.hp.com                                **
**      the usual disclaimers apply                  **
*******************************************************
Newsgroups: comp.sys.hp48
From: eldorado@en.ecn.purdue.edu (Dave Jansen)
Subject: Re: HP FTP Freshman
Organization: Purdue University Engineering Computer Network
Date: Thu, 9 Apr 92 05:00:30 GMT

kintel@hauk.hsr.no (kintel@hauk.hsr.no) writes:
: I've had my 48 for 2 years (velcro, no line) and in all that time, I've
: never imported an application into my beloved HP from someone that I did
: not know. I was wondering...before I pull anything off the FTP, has anyone
: here ever experienced a nasty thing such as a 48SX _VIRUS_ ?? The thought
: of importing an alien program and having it eat all my other stuff doesn't
: sit too well with me...
: 
: Phil Forrest - A NASA/JSC Co-op student who hates being back at school :-(

I am not aware of any viruses for the HP48/28.  I guess I'd like to think
that ALL of us that own one is moral enough to never introduce a virus.
I remember hearing on all the national news shows about the Michaelangelo
Virus.  I really hope this never happens to the HP48.

Dave
-- 

The weather is here, wish you were beautiful!
________________________________________________________________________________
David Jansen            |  INTERNET: eldorado@en.ecn.purdue.edu