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Re: New dumps [Re: Darkstar] #112830
03/10/18 03:28 PM
03/10/18 03:28 PM
Joined: Apr 2012
Posts: 180
Germany
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Bavarese Offline
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Germany
Hello,

i currently try to emulate an XT/AT hardware debugger from 1992, fully documented at https://www.heise.de/ct/artikel/HardBreaker-283750.html
(complete with GAL / PLD source).

My naive implementation (-> here) just came to an abrupt end.

Open questions:

- can i determine if an NMI request is already in the queue (determined via INNMI in the OUTNMI equation)?

- is there a method to determine if a DMA request is under way (done via /AEN signal on real hardware)...?

- can a XT style ISA card (like Hardbreaker), limited to 1 Megabyte address space + 64 KB, safely be placed into 'ct486' for tests?

I had quite some problems with the memory handlers (the exact size of the read / write handlers being one).


Is it possible to access the I/O range of the host from a slot?

Also not sure if the current RAM handler is safe when ROM space (or anything != RAM) is encountered on the host.


Translated, bug fixed and commented source for Turbo-Debugger and AFD-Pro here

Logic (abridged):
https://www.dropbox.com/s/iqfkhsyybg7c17t/Hardware_debugger_-_PLD_logic.txt?dl=1

I can provide further translations if necessary.

Please tell me if i try to do something impossible. Help would be very much appreciated.

Re: New dumps [Re: F1ReB4LL] #112839
03/11/18 02:07 AM
03/11/18 02:07 AM
Joined: Apr 2012
Posts: 355
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ssj Offline
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Originally Posted by F1ReB4LL
Technically, you only need to find people with the needed titles purchased & installed on their DSi's.

Good luck with that

Re: New dumps [Re: Darkstar] #112840
03/11/18 03:01 AM
03/11/18 03:01 AM
Joined: Mar 2017
Posts: 24
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BeckieRGB Offline
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Here's another Zone console, the Zone Mini:

https://www.dropbox.com/s/o2fmagt6947ja5g/zonemini.zip?dl=0

It appears similar to the Zone 40, complete with some kind of encryption.

Re: New dumps [Re: ICEknight] #112841
03/11/18 04:20 AM
03/11/18 04:20 AM
Joined: Jul 2004
Posts: 513
Kentucky
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ranger_lennier Offline
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Kentucky
Originally Posted by ICEknight
This may not be of much use for MAME in the near future, but there's just a few weeks left for preserving all the Wii downloadable games and there's currently some efforts being done to complete the sets:
http://romshepherd.com/index.php/topic,3799.180.html

Unfortunately, they seem to have hit a road block with the Korean titles.


I know some MAME users in Korea have helped with getting arcade PCBs from time to time--not sure if anyone is still active. Although I couldn't tell if there was really anything unique missing. Is it just Virtual Console games? (The Virtual Console is where you can buy official emulated games on the Wii.) I'm not sure if the Korean versions would actually be different.

Re: New dumps [Re: ssj] #112842
03/11/18 04:54 AM
03/11/18 04:54 AM
Joined: Jul 2004
Posts: 513
Kentucky
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ranger_lennier Offline
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Kentucky
Originally Posted by ssj
There was a similar effort with the DSiWare titles a while back unfortunately I believe many games were left unpreserved. I think this is what will happen with most current systems with all the DLC and online crap, a lot of games will be lost forever.


I hadn't realized there were undumped DSiWare games. I never actually got a DSi, but I do love the DS and 3DS. I did a little research on this, and it seems that most games were carried over to the 3DS shop, and people downloaded most (all?) of the incompatible ones that were still available in the DSi shop before it shut down. The problem is that some titles had been removed from the store years earlier, which would make the only way to dump them to find a system that already had them downloaded--not impossible, but definitely tricky, especially for really obscure games that didn't sell that many copies. That's definitely an issue with digital stores. You never know when a company is going to go out of business, someone loses a license, etc.

Another thing I've wondered about is updates. Is anyone archiving different versions of games? For example, Mario Odyssey on the Switch just updated from v1.1 to v1.2. I could delete the update and play v1.0 from my cart, but I don't know of any way to play v1.1 now. This is actually an issue for speed-runners, because some glitches were patched out. Maybe if I'd backed up my SD card I could go back. I haven't actually tried this on the Switch, but I did recently swap to a larger SD card on my 3DS, and I think that would work. Digital data is keyed to your system, so you can't just plug in someone else's SD card, but you can make backups of your own SD card to use on the same physical hardware you originally downloaded the data on.

Re: New dumps [Re: ranger_lennier] #112847
03/12/18 01:18 AM
03/12/18 01:18 AM
Joined: Oct 2013
Posts: 27
Nagoya, Japan
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Jarvik7 Offline
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Joined: Oct 2013
Posts: 27
Nagoya, Japan
Originally Posted by ranger_lennier

Another thing I've wondered about is updates. Is anyone archiving different versions of games? For example, Mario Odyssey on the Switch just updated from v1.1 to v1.2. I could delete the update and play v1.0 from my cart, but I don't know of any way to play v1.1 now. This is actually an issue for speed-runners, because some glitches were patched out. Maybe if I'd backed up my SD card I could go back. I haven't actually tried this on the Switch, but I did recently swap to a larger SD card on my 3DS, and I think that would work. Digital data is keyed to your system, so you can't just plug in someone else's SD card, but you can make backups of your own SD card to use on the same physical hardware you originally downloaded the data on.


I believe NUS allows you to specify the version you want to download. I don't know if anyone is backing up every version though.
This is something that the Sony CDN doesn't let you do, so that is a bigger risk for losing data forever.

Re: New dumps [Re: Jarvik7] #112848
03/12/18 05:58 AM
03/12/18 05:58 AM
Joined: Dec 2012
Posts: 242
Dunedin, NZ
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LoganB Offline
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LoganB  Offline
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Joined: Dec 2012
Posts: 242
Dunedin, NZ
Originally Posted by Jarvik7
Originally Posted by ranger_lennier

Another thing I've wondered about is updates. Is anyone archiving different versions of games? For example, Mario Odyssey on the Switch just updated from v1.1 to v1.2. I could delete the update and play v1.0 from my cart, but I don't know of any way to play v1.1 now. This is actually an issue for speed-runners, because some glitches were patched out. Maybe if I'd backed up my SD card I could go back. I haven't actually tried this on the Switch, but I did recently swap to a larger SD card on my 3DS, and I think that would work. Digital data is keyed to your system, so you can't just plug in someone else's SD card, but you can make backups of your own SD card to use on the same physical hardware you originally downloaded the data on.


I believe NUS allows you to specify the version you want to download. I don't know if anyone is backing up every version though.
This is something that the Sony CDN doesn't let you do, so that is a bigger risk for losing data forever.

With the Nintendo CDN, you need the titlekey that is provided with a ticket. It's essentially like the RAP for PS3, except it's for the whole file rather than only the EDAT.

Re: New dumps [Re: Darkstar] #112854
03/13/18 09:59 AM
03/13/18 09:59 AM
Joined: Jun 2016
Posts: 6
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Arashikage Offline
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Joined: Jun 2016
Posts: 6
Casio RZ-1 (1986), sampling drum machine

NEC uPD7811 CPU with 4K mask ROM ($0000-$0FFF)
Program ROM size of 8K, 64Kbit ($4000-$7FFF)

Two PCM sound ROMS (8-bit audio data, 32KB per ROM -- 64KB total)

The important thing here is that I was able to retrieve the CPU ROM via trojan, so I believe this should be able to be at least partially emulated now. The schematics and service manual are available for the RZ-1 and I don't think there is anything too special about it except the percussion generator ICs.

I have also disassembled the CPU and program ROMs and given them a thorough examination. To the best of my knowledge, they are both fully intact and correct, but there are no checksums available to prove it. The program ROM was just a standard read-out, but the CPU ROM could conceivable be wrong although the interrupt vector and call tables look as I'd expect, so I think it's fine.

There is also no version history available or chip markings on the program ROM, so I'm assuming this is v1.0, first and final, but I can't say for sure.

https://drive.google.com/open?id=1fqob221mm5IoZK-XB8VOR60Er7R9PCk9

Last edited by Arashikage; 03/13/18 10:03 AM.
Re: New dumps [Re: Darkstar] #112857
03/13/18 12:40 PM
03/13/18 12:40 PM
Joined: Mar 2001
Posts: 16,005
USA
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R. Belmont Offline
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Joined: Mar 2001
Posts: 16,005
USA
Thanks Arashikage! Got that stuff downloaded and I'll take a look at it.

Re: New dumps [Re: Darkstar] #112858
03/13/18 12:57 PM
03/13/18 12:57 PM
Joined: May 2004
Posts: 856
Germany
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Duke Online content
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Duke  Online Content
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Joined: May 2004
Posts: 856
Germany
I already started a skeleton driver, I'll commit it in a moment. Feel free to continue working on it.

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