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PostPosted: Tue Jun 20, 2017 11:06 pm 
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So, I've been trying to get a hold of many different people to acquire a couple copies of these... The relevant information that I have found on them is located here:

http://www.hardcoregaming101.net/korea/ ... y-open.htm
http://sinfox04.egloos.com/6307944
http://bbs.ruliweb.com/hobby/board/3001 ... derby=good
http://blog.naver.com/may517?Redirect=L ... 0126808705
http://cafe.naver.com/joonggonara/239398180
http://blog.naver.com/may517?Redirect=L ... 0130720337
http://blog.naver.com/pollalla?Redirect ... 0110696361

Image

From what I can tell, it looks like a hardware unit with a detachable microphone and miniature cartridges like the Camerica Aladdin unit designed by Daewoo. It also has an FM sound chip inside of it. The software was designed by Open Corp; the same people who designed Buzz and Waldog.

I had a brief conversation with "sinfox04" but he does not speak much English and doesn't have much interest in parting with his unit.

Anyone else have more information regarding this product; or have easy access to Korean markets?


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PostPosted: Thu Jun 22, 2017 3:14 pm 
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This looks a lot like the Famicom Titler to me. Never mind, I'm a dolt and didn't read carefully. You're talking about the cartridge, not the system :roll:


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PostPosted: Thu Jun 22, 2017 11:34 pm 
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mikejmoffitt wrote:
This looks a lot like the Famicom Titler to me. Never mind, I'm a dolt and didn't read carefully. You're talking about the cartridge, not the system :roll:

It looks like they came packaged two ways:

With the Noraebang (Karaoke) unit stand-alone:
Image
Image

And included with a Famiclone (also by Daewoo):
Image
Image

It appears that the Daewoo Famiclone used some of the same chips that the Dendy did; a UA6527 and UA6528:
Image


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PostPosted: Sat Jun 24, 2017 4:30 am 
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Am discussing with a collector to get his copy on loan for a dump, I have an extension cart of that as well. But yeah so far he was relunctant to send it by mail.

And yes these things are hard to find plus expensive, even in Korea. There's another, way less known Karaoke cart by a company called Hicom. Last ones I saw for sale were 250 loose and 600 cib. I'm assuming Daou's price the same since these are just as rare. So yeah if you want multiple copies (why??) it's going to cost you a grand quickly.

Here's the PCB of that, if anyone is curious.
https://www.flickr.com/photos/151375036 ... ed-public/
https://www.flickr.com/photos/151375036 ... ed-public/

(I'll get that dumped btw)


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PostPosted: Sat Jun 24, 2017 9:15 am 
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Fantastic news! Hrm... Those pictures aren't high-resolution enough to make out what's inside of them. :/ It also does not appear to look like the unit?

Well... The goal is to get the whole thing emulated. I was considering the fact if it needed to potentially be destroyed for science. Hopefully if we get better pictures and you get your hands on it, you can also figure out the mysteries. :)

Do we know the total amount of extension carts and which ones there are?


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PostPosted: Sat Jun 24, 2017 9:38 am 
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I mentionned this was the other Karaoke cartridge that was released in Korea. Much smaller cartridge and has 3 times the number of song. Also less popular because it came from a smaller distributor.
As for the Daou's one, there are 4 known ext carts.

Also…
Since when RE has been about killing them for science? There are dumpers specialised for these rare games with complex mapper/circuitry (CaH4e3, Kevtris, dforce…). If i'm not sure about my ability to dump it safely I'd rather send it to a professionnal than waste a copy and having to eventually find another??

It'd be a shame to waste a copy of an already rare cartridge if it can be done safely with the help of other people?


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PostPosted: Sat Jun 24, 2017 10:04 am 
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Hrm... Interesting. So I'm not familiar with this other cartridge then. Destruction is obviously not the goal, but some chips cannot be dumped by desired means. I was just planning for "just in case."

Very interesting though! Is it the same program?


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PostPosted: Sat Jun 24, 2017 11:37 am 
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B00daW wrote:
Hrm... Those pictures aren't high-resolution enough to make out what's inside of them. :/
What? I mean, I can't RE it just from these pictures, but it's not because some of the part numbers are illegible.

Code:
74????? 74LS00 74LS138 ⅛"jack resistorpile
74LS161                         GD4066 MC3403P
74LS139         74LS273 74LS273  moreresistors
maskrom   8KRAM


I can certainly take educated guesses at what's going on—e.g. the GD4066 probably allows for software-adjustable volume control of the microphone.

But the real problem (to me) is that I can't see the traces that are under the ICs, especially the DIP ones.


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PostPosted: Sat Jun 24, 2017 12:00 pm 
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Dumping the chips won't be enough anyway, I'm positive this operates on a unimplemented mapper so you'd need to do hardware & software RE. So your best bet to get it dumped and emulated would be a person used to such items.
Add to that the necessary update to the emulator to provide mic input directly to the game as it expects it.
Not an easy task by any means.

And no, it's a completly different software. I do have a kazzo but I haven't done any attempt at dumping it because it obviously won't work on any common mapper (and it's the only Famicom game from this company so it's likely a singleton mapper).

I can take HD pics of the PCB if anyone needs/wants them. But I won't desolder any chip by myself.
I can also try to follow some traces with a multimeter but I got no time to do that at the moment.


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PostPosted: Sat Jun 24, 2017 12:13 pm 
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OK... Well this is a secondary "Noraebang" item; and it's of interest as well, for sure.

Yeah! Might as well give us some more HD pictures of the cart and casing. That would be nice. :) Do we know the name of this cart, the software maker, and hardware maker? Kazoo dumper or TapeDump may do the trick if we can figure out the mapping from pictures. Otherwise CopyNES is also a good solution.

My personal interest in the Daewoo cart is finding out the FM chip inside of it.


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PostPosted: Sat Jun 24, 2017 12:20 pm 
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Title: Kkachi wa Norae Chingu
Developper/Publisher: Hicom (You can see their logo on the pcb in fact, solder side, bottom left)
Video: https://www.youtube.com/watch?v=1LA1bjvaFiU

I'm not singing on the video but you can hear me blowing in the mic like an idiot ( :) ) at the very end of the recording. The audio output is fairly nice tbh.


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PostPosted: Sat Jun 24, 2017 1:01 pm 
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Thank you! I see the page here: http://www.hardcoregaming101.net/korea/ ... -hicom.htm

Seems like this is a boolean sorta switch thing... The mic can tell whether or not air pressure is applied, then the signal is supplied to the cart. To emulate this we'd just also need to know which register value the mic is mapped to. Doubt it's the same as the Famicom mic?

In regards to dumping 까치와 노래친구 we would only need to dump the PRG and CHR ROMs. :) No destruction would be necessary.


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PostPosted: Fri Aug 18, 2017 1:43 pm 
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Kkachi-wa is dumped.
>KKachi-wa Norae Chingu (K) (Unl).nes
It was UOROM, thanks to NewRisingSun for the support.

Now if it is possible or not to figure out how to feed the ROM with the microphone input it expects is another question.


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PostPosted: Fri Aug 18, 2017 4:58 pm 
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Let's debug it. PM me with details.


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PostPosted: Mon Aug 21, 2017 9:55 am 
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Thanks.

Looks like it's reading two different addresses and comparing them... It's reading from $6000 and $6001. (These are likely the Mic (Force/Volume) Input values. Not sure why it needs two just yet...) Did most of the debugging with No$NES. To emulate this, we'd have to figure out the hardware of the mic input and the values that are stored/read. I'm not the greatest at hardware, but we'd have to trace hardware address $6000 and $6001 to the cart, see what it's connected to, and maybe look up a datasheet on those components.

The game is a 512KB UxROM.

This looks like the mic reader routine:
Code:
0000   A5 00      LDA $00
0002   85 01      STA $01
0004   A9 80      LDA #$80
0006   85 00      STA $00
0008   8D 00 80   STA $8000
000B   8D 00 80   STA $8000
000E   EA         NOP
000F   EA         NOP
0010   AD 00 60   LDA $6000
0013   6A         ROR A
0014   B0 40      BCS $0056
0016   A2 00      LDX #$00
0018   86 67      STX $67
001A   AD FF FF   LDA $FFFF
001D   AD FF FF   LDA $FFFF
0020   CA         DEX
0021   F0 40      BEQ $0063
0023   AD 00 60   LDA $6000
0026   6A         ROR A
0027   90 F1      BCC $001A
0029   A2 40      LDX #$40
002B   8A         TXA
002C   4A         LSR A
002D   69 E7      ADC #$E7
002F   A8         TAY
0030   C8         INY
0031   30 FD      BMI $0030
0033   CA         DEX
0034   F0 12      BEQ $0048
0036   AD 01 60   LDA $6001
0039   6A         ROR A
003A   B0 06      BCS $0042
003C   E6 67      INC $67
003E   EA         NOP
003F   4C 18 CD   JMP $CD18
0042   AD 00 60   LDA $6000
0045   6A         ROR A
0046   B0 E3      BCS $002B
0048   86 68      STX $68
004A   A5 18      LDA $18
004C   09 40      ORA #$40
004E   85 18      STA $18
0050   A5 1C      LDA $1C
0052   09 02      ORA #$02
0054   85 1C      STA $1C
0056   A5 01      LDA $01
0058   85 00      STA $00
005A   8D 00 80   STA $8000
005D   8D 00 80   STA $8000
0060   EA         NOP
0061   EA         NOP
0062   60         RTS

Anybody have any more thoughts?


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