PS3 Compatibility List - PS2 on PS3

@kozarovv Is there any really chance to fixing Yakuza? If you say yes, I start to play the game from the start today and give you a save state before the freezing issue.
 
Hii guys.. sorry If I bothering.. Is there config file to FIX ACE COMBAT Games ??

I looked at youtube where someone play ACE COMBAT Zero and 5 with PSCX2 with great Graphic...

The link is :

Can config file do same thing like that ??
 
fovdj said:
Hii guys.. sorry If I bothering.. Is there config file to FIX ACE COMBAT Games ??

I looked at youtube where someone play ACE COMBAT Zero and 5 with PSCX2 with great Graphic...

The link is :

Can config file do same thing like that ??
Click to expand...
For now, only Ace Combat 4 is playable.
 
Onimusha Warlords and Onimusha 2 Samurais Destiny has slowdowns and flickering textures in at certain parts of the game. Onimusha 2 has a weird freeze at the last boss save point since that room also has the flickering textures problem, the game will freeze to a black screen sometimes when doing the elevator cutscene going down to the last boss. Is there a config to fix this? I can upload my save if anyones curios
 
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The hash is some kind of CRC, mysis mentioned it explicitelly somewhere
But well, when using the word "CRC" i guess is used as something generic, there are a lot of different ways to generate a CRC like that https://en.wikipedia.org/wiki/Cyclic_redundancy_check

Basically it works by cummulating bytes of the Title_ID and summing them (or some other basic math operation)
What we know is not very precise, because there are games with different Title_ID that returns the same CRC... also the one used here for PS3 is very short
So cant be considered a security check because the precission is very low... is better to think in it as a safety check instead (a low accuracy check to be sure the data we are reading is correct)

And... everytime i think in this it comes to mind other places of the PS3 firmware where are used this kind of CRC hashes (and are still unknown)... such inside the xregistry.sys
Just throwing ideas incase someone wants to play with this and try luck to find the algorithm used to generate them ;)
 
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kozarovv said:
@Zar @chicco33 I added proper config for Tales of The Abyss NTSC-U to psdevwiki PS2 emulation page. Game is now fully playable, without slow down.

http://www.psdevwiki.com/ps3/index.php?title=PS2_Emulation&curid=9646&diff=48197&oldid=48190

@mysis are you able to convert GameID/DiscID to hash? Or only hash to GameID/DiscID? If it is possible can you make hash/checksum/whatever_it_is for SLUS_213.86 ? Thanks in advance :)
Click to expand...
Thank you so much. I can give you a save state for Yakuza until end of this week.
Also is there any command to fix Tales of Legendia?
 
I have a problem with the PS2 game True Crime NYC Slus21106.
I have this game in my PS3 Slim in ISO (not Pkg or ps2classic).
The game freezes when i use the elevator,Is there a solution?
Maybe is mY PS2 .CONFIG.
Thanks and sorry for the bad English.
 
0x0E = Improve ADD/SUB accuracy for selected opcode
0x26 = Improve ADD/SUB accuracy for selected memory range

Confirmed in Rygar, and ToTA.
Edit: In netemu.

Edit2: Following this find, correct config for ToTA is:
Code: 
00000000  3D 00 00 00 65 3D 00 00 0E 00 00 00 FC FF 27 00  =...e=......ü˙'.
00000010  0E 00 00 00 F4 21 29 00 00 00 00 00              ....ô!).....
Although old config should work fine like current one. This is just proper way.
 
kozarovv said:
0x0E = Improve ADD/SUB accuracy for selected opcode
0x26 = Improve ADD/SUB accuracy for selected memory range

Confirmed in Rygar, and ToTA.
Edit: In netemu.

Edit2: Following this find, correct config for ToTA is:
Code: 
00000000  3D 00 00 00 65 3D 00 00 0E 00 00 00 FC FF 27 00  =...e=......ü˙'.
00000010  0E 00 00 00 F4 21 29 00 00 00 00 00              ....ô!).....
Although old config should work fine like current one. This is just proper way.
Click to expand...
Great, i guess we need to update that table in talk page in wiki :)
Initially i marked that ones as "find and replace" but was just a way to add some info in them to difference them from the others (and marked them in orange in the table)

There are another 2 commands marked in orange in the table, because the data stored in them did look to follow the same rules like the ones you are mentioning, now you have the proper names of this ones... im guessing the others are going to work pretty similar
The difference maybe is the others are going to be used to decrease ADD/SUB accuracy :)

If this im saying is right... it could be something useful to reduce the workload... to fix some some games with lag
 
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