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#97162 - 11/30/14 07:20 AM Re: New dumps [Re: Darkstar]  
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seanriddle Online content
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The Coleco Quiz Wiz is handheld trivia game from the early 80s. The main unit has a numeric keypad to enter the question #, letters ABCD to enter the answer, an ANSWER button to check the answer, and a CLEAR button. There is a green YES LED and a red NO LED. It has a piezo buzzer that plays a high note for YES and a low note for NO.

The unit docks with a cartridge that's part of a plastic case that protects the unit and holds a booklet with the questions. The unit I got came with book #1, with 1001 questions, like "who broke the home run record set by Babe Ruth" and "She formed the Stone Poneys with two friends".

The patent (4303398) shows 2 different embodiments. The first uses a calculator chip - not a custom programmed one like the TI TMS chips, but a regular calculator chip. The buttons were to be labelled so that when you punched in a question # and answer, you were really entering an equation into the calculator. It wound up that if you entered the wrong answer it caused a divide-by-zero that blinked the red LED, otherwise the green one lit up. Pretty odd.

The 2nd concept has 4 latches that get set or cleared based on the question # entered. Numbers 0 and 4 always clear their latches, 5 and 6 always set their latches, and the other digits set or clear their latches based on the cartridge wiring: for cart #1, numbers 2, 8 and 9 clear their latches, and 1, 3 and 7 set theirs. The 10 digits are grouped 1, 5 and 8 on latch 1, 0 and 3 on latch 2, 4 and 7 on latch 3 and 2, 6 and 9 on latch 4. If latch 1 and latch 2 are the same, the first digit of the answer is 0, else it's 1. If latch 3 and latch 4 are the same, the second digit of the answer is 0, else it's 1. Answer 11 is A, 10 is B, 01 is C and 00 is D. So entering 347 would set latch 2, clear latch 3, then set latch 3; latch 1 is different from latch 2 and latch 3 is different from latch 4, so the answer is 11=A. (To check this example I had to cheat, because I did not know the first name of Seals, of Seals and Croft.)

When I opened it up, instead of the several TTL chips that the patent showed, there was only 1 14-pin chip with custom markings. The cart is simple- there are 8 pins, and cart 1 just connects 1-4 together and 5-8 together. The patent shows it and cart 8, which wires 1 to 5, 2 to 6, 3 to 7 and 4 to 8.

I decapped the chip but the die didn't separate from the plastic, so I'll have to try some H2SO4. It should be a pretty simple die.

The instructions say you have to hit clear before entering each question, and the schematic in the patent confirms that, but the unit I got doesn't require it. I guess they were able to add a few more gates to make it easier to play.

The algorithm isn't great; for the 1001 cart 1 questions, B and D are the answers 63% of the time. The first 10 answers are BDBDBCCDDD. That helps to know when you need to guess.

It looks like there are at least a dozen more quiz books, but I can't imagine the work to enter all those questions....

#97165 - 11/30/14 10:01 AM Re: New dumps [Re: Darkstar]  
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shattered Offline
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http://zx-pk.ru/showpost.php?p=757807&postcount=28 -- MB112S146 (from Arkanoid board) decapped photos

#97184 - 12/01/14 01:40 AM Re: New dumps [Re: Darkstar]  
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rorirub Offline
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Sega Saturn video cd card rom dumps:

Saturn Video CD Card (PAL MK-80310 v1.105).rar 7.2 MB
Saturn Video CD Card (JPN HSS-0119 REV1 v1.102).rar 9.9 MB
Saturn Video CD Card (JPN Hitachi REV1 v1.009).rar 4.0 MB
Saturn Video CD Card (JPN Hitachi REV2 v1.011).rar 10.4 MB
Saturn Video CD Card (JPN RG-VC2 v2.000).rar 8.1 MB
Saturn Video CD Card (JPN RG-VC2 v2.001).rar 13.8 MB
Saturn Video CD Card (JPN RG-VC20 v3.000).rar 16.1 MB

Archives include documentation and lots of photos. One or two more dumps are currently pending verification. At least three, but maybe as much as six more cards are still undumped.

#97371 - 12/11/14 06:17 PM Re: New dumps [Re: Darkstar]  
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ICEknight Offline
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This topic has just reminded me of those cartridges that certain old Casio keyboards like the PT-82 worked with: http://www.crumblenet.co.uk/keyb/rpacks.html

Are these things being preserved? It would be an interesting device to support, in my oppinion.

There seems to be plenty of them, too: http://www.crumblenet.co.uk/keyb/packdata/rompacks.php

#97372 - 12/11/14 06:49 PM Re: New dumps [Re: Darkstar]  
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R. Belmont Offline
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Not that I know of. And since we're pretty much the only people trying to preserve old synthesizers that means "no".

#97373 - 12/11/14 07:31 PM Re: New dumps [Re: rorirub]  
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Olivier Galibert Offline
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Olivier Galibert  Offline
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somewhere else entirely
Originally Posted By rorirub
Sega Saturn video cd card rom dumps


Nice. Did you manage to decrypt the first 20K? Looking at it shows that it's a context independant encryption (e.g no CBC or equivalent, so probably pure hardware), working on 32-bits values, and not a simple xor layer. Two times 20K is a little short for more analysis though :-)

OG.

#97375 - 12/12/14 12:27 AM Re: New dumps [Re: Darkstar]  
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ranger_lennier Offline
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[Moving this post now that I see the TMSxxxx MCUs have their own thread.]

Last edited by ranger_lennier; 12/12/14 03:54 AM.
#97377 - 12/12/14 01:42 AM Re: New dumps [Re: Darkstar]  
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rorirub Offline
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#97409 - 12/14/14 09:33 AM Re: New dumps [Re: Darkstar]  
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rfka01 Offline
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Bavaria
While trying to get through to my box of IBM PS/2 spares, I found a box of Apple II interface cards ... mostly uneventful stuff like Disk II controller cards or unnamed 80col cards.

Of the other stuff, the IBS AP4 and the Apple Silentype (Synch Printer) card are already archived here

http://mirrors.apple2.org.za/Apple%20II%20Documentation%20Project/Interface%20Cards/

in great detail amongst a wealth of other cards.

A lot of interesting things can be found here as well:

http://www.harrowalsh.de/Elektronik/APPLEBOX/appleboxdownload.htm

I can add these:

Axiom 5120 Serial Card:
Included for completeness' sake ... I can't dump the ancient 2708 Eprom.
https://dl.dropboxusercontent.com/u/55419307/Apple%20II/Axiom%205120%20Serial.rar

Ehring FDC-4:
Disk controller card with the option to connect Shugart drives. I have an unbuilt PCB which has been scanned and the build manual. Disk images and BIOS from the "Apple 2 box" site above.
https://dl.dropboxusercontent.com/u/55419307/Apple%20II/Ehring%20FDC-4.rar

IBS Computertechnik serial card:
https://dl.dropboxusercontent.com/u/55419307/Apple%20II/IBS%20Computertechnik%20Serial.rar

Omnivision video card:
https://dl.dropboxusercontent.com/u/55419307/Apple%20II/Omnivision.rar

Unknown Centronics card:
https://dl.dropboxusercontent.com/u/55419307/Apple%20II/Unknown%20Centronics.rar

Unknown graphics card:
https://dl.dropboxusercontent.com/u/55419307/Apple%20II/Unknown%20Graphics.rar


NCR DMV- DEC Rainbow- Siemens PCD- ITT 3030-Oly People- Acorn A5000- Olivetti M20
#97410 - 12/14/14 09:45 AM Re: New dumps [Re: Darkstar]  
Joined: Jan 2012
Posts: 780
rfka01 Offline
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rfka01  Offline
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Posts: 780
Bavaria
A PCI Mac accelerated graphics card:

Mac Picasso 540

https://dl.dropboxusercontent.com/u/55419307/MacPicasso%20540.rar

Manual and drivers can still be found here:

http://www.villagetronic.com/g3/classics/download.html


NCR DMV- DEC Rainbow- Siemens PCD- ITT 3030-Oly People- Acorn A5000- Olivetti M20
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