Fixing unplayable games

[jesalvein]

You do ?
Oh, maybe ref. I remember him talking about this

[2KUniverseguy]

So it can never be fixed??

[jesalvein]

So it can never be fixed??

I guess it's fixable. We just don't know how yet

[refraction]

Marvel Nemesis will likely never work on PCSX2, sorry.

it requires the tightest of tight timings, to the point the emulator will run at 0.5fps in order to emulate it, and that's just not feasible.

[yumzion90]

would love a optimization patch for Onimusha 3 US Version

and for Devil May Cry 1 US Version if possible thanks

[kumarkuldeep6]

Thanks for the updates. Even though I probably won't play any of these games it's nice to see you guys

[kozarovv]

Workaround for Time Crisis 2 NTSC-U FMV audio desync. Game have weird runtime that will loop on EE side, which is apparently supposed sync with IOP module that read CDVD. Depending on state possible loop cycle values are 200000, 700000, and 1200000 (plus nops). At the same time IOP jump between WaitVblankEnd, ioCdvdStatusManage, statusQueueExecPre, and statusQueueExecPost.
Issue is probably in pcsx2 cycle counting, and lack of proper status check in game code. But i'm not sure that my theory is correct.
Alternative solution is to use +1 cyclerate. 

CRC = D5D560FF

Code:

//Skip 1200000 cycles loop - fix audio
patch=1,EE,00154954,word,10000009

[kozarovv]

Fix for Virtua Fighter 4 SLUS-20323 hang while loading replays. Game interrupt required data read if break command is done too early.
Hard to tell that it works by luck on PS2, or maybe something is missing on pcsx2 side.
Also workaround to https://github.com/PCSX2/pcsx2/issues/2009
CRC=EA131B57

Code:

// Delay Break CDVD command
// Fix replays / A.I replays loading
patch=1,IOP,0003d010,word,0807fff9
patch=1,IOP,0003d014,word,3c020004
patch=1,IOP,001fffe4,word,24180016
patch=1,IOP,001fffe8,word,14980003
patch=1,IOP,001fffec,word,3c190010
patch=1,IOP,001ffff0,word,1720ffff
patch=1,IOP,001ffff4,word,2739ffff
patch=1,IOP,001ffff8,word,0800f406
patch=1,IOP,001ffffc,word,8c42e36c

// Enable command print
//patch=1,IOP,0003d034,word,00000000

[felixthecat1970]

workaround for show videos in HW mode Silent Hill 3 (USA) (En,Ja,Fr,De,Es,It,Ko) SLUS_206.22;1 Game CRC = 0x2498951B
 i find a workaround for show videos in HW mode

Code:

//video in HW mode for NTSC 60hz only
patch=1,EE,E0020001,extended,01223270
patch=1,EE,11223250,extended,1110
patch=1,EE,11223278,extended,1110

[felixthecat1970]

Evangelion - Jo (Japan) SLPS_259.32;1) Game CRC = 0xCBB87BF9

this game have enabled crc hack in PCSX2 and looks broken, i think now can be removed with this pnach

Code:

//Exessive Blurr removal Test
patch=0,EE,20297A48,extended,340F0000

game plays ok (second event tested), clean image, crc hack to "none (debug)"