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Hp-19Bii ROM dump -- is it possible? - Printable Version

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Hp-19Bii ROM dump -- is it possible? - x34 - 11-18-2014 08:10 PM

I'm really confused with Emu42 description. It says Emu42 can run HP-19Bii ROM, but I've found no way to dump HP-19Bii ROM. Is it really possible?

tia,
x34


RE: Hp-19Bii ROM dump -- is it possible? - Mark Hardman - 11-18-2014 08:30 PM

(11-18-2014 08:10 PM)x34 Wrote:  I'm really confused with Emu42 description. It says Emu42 can run HP-19Bii ROM, but I've found no way to dump HP-19Bii ROM. Is it really possible?

tia,
x34

The ROM is extracted via the IR transmitter on the calculator. [*** Incorrect, see below ***]

Take a look at CPROMUPL.ZIP on Christoph's site.


RE: Hp-19Bii ROM dump -- is it possible? - Mark Hardman - 11-18-2014 09:26 PM

(11-18-2014 08:30 PM)Mark Hardman Wrote:  
(11-18-2014 08:10 PM)x34 Wrote:  I'm really confused with Emu42 description. It says Emu42 can run HP-19Bii ROM, but I've found no way to dump HP-19Bii ROM. Is it really possible?

tia,
x34

The ROM is extracted via the IR transmitter on the calculator.

Take a look at CPROMUPL.ZIP on Christoph's site.

My mistake. As far as I know, there is no way to get into the ROM scanner on the HP-19B/BII calculators.

To answer your original question, there is no simple way to extract these ROMs--thought Christoph has tantalizingly shown screen captures of them in use in his emulator.


RE: Hp-19Bii ROM dump -- is it possible? - x34 - 11-18-2014 09:40 PM

So, the only ways are desoldering/reading ROM or making photo? Nope, I can live without it, just will use HP-200LX emulator, since my 200LX has broken screen cable. Hmm, it is not available at http://www.spaadyshare.net/569fgojaq6cf/HP200LX.zip anymore.

So, another Q: where can I find HP200LX emulator?


RE: Hp-19Bii ROM dump -- is it possible? - Katie Wasserman - 11-18-2014 10:08 PM

(11-18-2014 09:40 PM)x34 Wrote:  So, another Q: where can I find HP200LX emulator?

While not a full emulator, HP's CPACK implements the basic functionality of the 100XL/200LX including the calculator. You'll need to run it in DOSBOX or it will either not run (Windows 7 - 64 bit) or do some strange things to your display (this happens in Windows XP, for example). Take a look at this old thread for some details.


RE: Hp-19Bii ROM dump -- is it possible? - Dave Frederickson - 11-19-2014 01:19 AM

(11-18-2014 09:40 PM)x34 Wrote:  So, another Q: where can I find HP200LX emulator?

The Connectivity Pack is available at Vetusware.com. You can also find there a copy of Derive.

Dave


RE: Hp-19Bii ROM dump -- is it possible? - x34 - 11-19-2014 02:01 PM

Thanks to all!


RE: Hp-19Bii ROM dump -- is it possible? - brouhaha - 11-20-2014 12:21 PM

(11-18-2014 09:26 PM)Mark Hardman Wrote:  there is no way to get into the ROM scanner on the HP-19B/BII calculators.

Because there isn't one.

I have some ideas regarding how to dump 18C, 19B, and 19BII ROMs, but I don't want to pay eBay prices to buy them to sacrifice to the cause.


RE: Hp-19Bii ROM dump -- is it possible? - Guenter Schink - 11-20-2014 05:44 PM

(11-20-2014 12:21 PM)brouhaha Wrote:  I have some ideas regarding how to dump 18C, 19B, and 19BII ROMs, but I don't want to pay eBay prices to buy them to sacrifice to the cause.

I could send you one 19BII, free of charge of course. Send me your address per mail if you agree.

Günter


RE: Hp-19Bii ROM dump -- is it possible? - Mark Hardman - 11-20-2014 06:28 PM

(11-20-2014 12:21 PM)brouhaha Wrote:  I have some ideas regarding how to dump 18C, 19B, and 19BII ROMs, but I don't want to pay eBay prices to buy them to sacrifice to the cause.

Would these ideas extend to extracting ROMs from Pioneers without the requisite I/R transmitter? I would gladly donate an HP-32SII to such an endeavor.


RE: Hp-19Bii ROM dump -- is it possible? - Dave Frederickson - 11-20-2014 07:31 PM

(11-20-2014 06:28 PM)Mark Hardman Wrote:  Would these ideas extend to extracting ROMs from Pioneers without the requisite I/R transmitter? I would gladly donate an HP-32SII to such an endeavor.

Looks like it might have already been extracted. Smile

[Image: HPBkgnd.jpg]


RE: Hp-19Bii ROM dump -- is it possible? - Mark Hardman - 11-20-2014 09:14 PM

(11-20-2014 07:31 PM)Dave Frederickson Wrote:  
(11-20-2014 06:28 PM)Mark Hardman Wrote:  Would these ideas extend to extracting ROMs from Pioneers without the requisite I/R transmitter? I would gladly donate an HP-32SII to such an endeavor.

Looks like it might have already been extracted. Smile

The source of the image is Mr. Gießelink himself.

Like I said earlier in this thread, "Christoph has tantalizingly shown screen captures of them in use in his emulator". I have no doubt that he has the ROMs. Sadly, it is up to us mere mortals (and Eric Smith) to find our own way to extract them.


RE: Hp-19Bii ROM dump -- is it possible? - Christoph Giesselink - 11-20-2014 09:43 PM

Some of the ROM images haven't been extracted. About 10 years ago some at HP had been interested into an emulator for some calculator models. To make them I got access to some images. But it's a pity that several other images got lost over the years.

I only know a theoretical method to extract the images from real calculators. Only on the 18C you have direct access to the Saturn bus. Executing a self test should show the ROM content on the bus. With the 1LU7 Bert, the 1LR2 Lewis and 1LR3 Sacajawea CPU's the situation is much more difficult, in all chips the Saturn bus is only inside. The technical documention tells that's a special "debug mode" could be activated over some pins at CPU startup. In this "debug mode" the data on the Saturn bus should be visible on some other pins. All calculators have a self test with a complete ROM check, so the ROM image data should be visible on the bus. But these technical documents tell nothing about the pin layout, so it's a theoretical method only.


RE: Hp-19Bii ROM dump -- is it possible? - J-F Garnier - 11-21-2014 05:32 PM

(11-20-2014 09:43 PM)Christoph Giesselink Wrote:  Some of the ROM images haven't been extracted. About 10 years ago some at HP had been interested into an emulator for some calculator models. To make them I got access to some images.

So what we have to do is to convince HP to release some/all the ROM images (or just give permission to Christoph to put the images on his site).
Is there anybody well introduced at HP??

Quote:But it's a pity that several other images got lost over the years.

And we can argue that the HP user community is a much more reliable long-term environment to preserve ROM images.
If I'm not wrong, HP used Eric's work to recover the HP15C ROM image for the HP-15C Limited Edition ( Hi Eric :-).

J-F


RE: Hp-19Bii ROM dump -- is it possible? - brouhaha - 11-22-2014 08:10 AM

(11-20-2014 06:28 PM)Mark Hardman Wrote:  
(11-20-2014 12:21 PM)brouhaha Wrote:  I have some ideas regarding how to dump 18C, 19B, and 19BII ROMs, but I don't want to pay eBay prices to buy them to sacrifice to the cause.

Would these ideas extend to extracting ROMs from Pioneers without the requisite I/R transmitter? I would gladly donate an HP-32SII to such an endeavor.

Yes, no IR transmitter required, but the calculator is destroyed in the process. Some parts of the calculator such as the LCD can be salvaged for use in repairing others, though I'd prefer to start from calculators that already are broken. Some time back Randy sent me some dead Pioneer circuit boards, and it's taken me much longer than expected to get set up to decap the chips, but I'm finally close. I've all the necessary equipment now except a fume hood, which I'll build myself, and a temperature-controlled hot plate. The fuming nitric acid is also somewhat pricey, and I haven't purchased any yet. I'll probably need to purchase some more laboratory glassware, but that's not too expensive.

Fuming nitric is pretty nasty stuff, so very serious safety precautions are necessary. I've got acid-splash-resistant goggles and lab coat, and an acid-resistant full face shield. I need to buy or make an emergency eye wash station and an emergency shower, but obviously I'm going to really try hard not to have to use either.

For the fume hood I plan to have redundant blowers and exhaust hoses, and power one blower from a UPS. The fume hood will have a welded lip around the bottom plate and under the front door so that any spilled acid won't run out onto the floor, or my lab coat or boots, and I have a large container of sodium bicarbonate that will be at hand to neutralize any spill.


RE: Hp-19Bii ROM dump -- is it possible? - Gerson W. Barbosa - 11-22-2014 10:06 AM

(11-20-2014 12:21 PM)brouhaha Wrote:  I have some ideas regarding how to dump 18C, 19B, and 19BII ROMs, but I don't want to pay eBay prices to buy them to sacrifice to the cause.


Is about $30 too expensive for an untested 19B? Probably non working, but the seller says he cannot test the calculator because it lacks the battery cover.

http://produto.mercadolivre.com.br/MLB-595388679-calculadora-cientifica-hp-19b-oportunidade-leia-_JM

Also, a non working 18C for $24:

http://produto.mercadolivre.com.br/MLB-595388679-calculadora-cientifica-hp-19b-oportunidade-leia-_JM


RE: Hp-19Bii ROM dump -- is it possible? - Mark Hardman - 11-22-2014 04:07 PM

(11-22-2014 08:10 AM)brouhaha Wrote:  I've all the necessary equipment now except a fume hood, which I'll build myself, and a temperature-controlled hot plate. The fuming nitric acid is also somewhat pricey, and I haven't purchased any yet. I'll probably need to purchase some more laboratory glassware, but that's not too expensive.

You just went from "genius" to "mad scientist genius" in my mind.

I'd like to contribute $100.00 to this cause. Could you please PM your PayPal email?


RE: Hp-19Bii ROM dump -- is it possible? - Alejandro Paz(Germany) - 11-08-2016 06:14 PM

Re-reading old posts again, I stumbled (again) with this post. Did something happen ?