Editing PS2 Emulation

== PS2 games available on PS4 PS Store ==

* Ape Escape 2 UP9000-CUSA02194_00-SCES508850000001 or EP9000-CUSA02269_00-SCES508850000001 2016-08-02

* Blood Omen: Legacy of Kain UP8489-CUSA49771_00-SLUS000270000000 (PS5: UP8489-PPSA24270_00-0499283180274839) 2024-11-19 PS4 12.00

* Blood Omen 2: Legacy of Kain UP8489-CUSA49769_00-SLUS200240000000 (PS5: UP8489-PPSA24268_00-0200966777747783) 2024-11-19 PS4 12.00

* Ghosthunter (English, Japanese) UP9000-CUSA47996_00-SLUS209930000000 (PS5: UP9000-PPSA21974_00-SLUS209930000000) 2024-06-18

* Grand Theft Auto: San Andreas UP1004-CUSA03506_00-SLUS209460000001 or EP1004-CUSA03541_00-SLES525410000001 PS4 3.11 "2015-12-05"

* Indigo Prophecy (aka Fahrenheit 2005) UP1642-CUSA04798_00-SLUS211960000001 or EP1628-CUSA05760_00-SLES535390000001 "2016-08-09"

* Jak and Daxter: The Precursor Legacy HP9000-CUSA08427_00-SCPS560030000001 patch 1.01 requires PS4 4.73

* Jak™ X EP9000-CUSA07992_00-SCUS974290000001 patch 1.02 requires PS4 5.01

* Jak X: Combat Racing UP9000-CUSA07842_00-JPPS400000000001 2018-03-15

* Mister Mosquito UP9000-CUSA48755_00-SLUS203750000000 (PS5: UP9000-PPSA22948_00-SLUS203750000000) 2024-09-17 patch 1.02 requires PS4 11.52 or PS5 9.60

* Psychonauts UP2154-CUSA03881_00-SLUS211200000001 or EP2154-CUSA04150_00-SLES538300000001 "2016-06-07"

* Puzzle Quest: Challenge of the Warlords UP0367-CUSA03571_00-SLUS216920000001 "2016-02-24"

* SkyGunner UP9000-CUSA49210_00-SLUS203840000000 (PS5: UP9000-PPSA23535_00-SLUS203840000000) 2024-09-17 patch 1.03 requires PS4 11.52 or PS5 9.60

* Sly Raccoon (2002), Sly Cooper and the Thievius Raccoonus UP9000-CUSA47431_00-SCUS971980000000 (PS5: UP9000-PPSA21300_00-SCUS971980000000) 2024-06-11 PS4 11.50

* Star Wars Bounty Hunter UP1082-CUSA03472_00-SLUS204200000001 or EP1006-CUSA03493_00-SLES508310000001 2016-01-15

* STAR WARS: Jedi Starfighter UP1082-CUSA03473_00-SLUS202930000001 or EP1006-CUSA03494_00-SLES503710000001 2016-01-15

* STAR WARS The Clone Wars UP1082-CUSA48010_00-SLUS205100000000 (PS5: UP1082-PPSA21985_00-SLUS205100000000 or UP1082-PPSA21985_00-0384550355606536) 2024-06-11 PS4 11.50

* Summoner PS2 Emulation (2000) UP4389-CUSA48889_00-SLUS200740000000 (PS5: UP4389-PPSA23124_00-SLUS200740000000 or UP4389-PPSA23124_00-EMUPS2SUMMONER00) 2024-07-16 PS4 patch 1.01 requires PS4 11.50, PS5 patch 1.02 requires PS5 9.40

* TimeSplitters EP4062-CUSA49387_00-SLUS200900000000 (for PS5: EP4062-PPSA23799_00-SLUS200900000000 or EP4062-PPSA23799_00-TIMESPLITTERSONE) 2024-08-20 PS4 patch 1.01 requires PS4 11.52, PS5 patch 1.00 requires PS5 9.40

* TimeSplitters 2 EP4062-CUSA49392_00-SLUS203140000000 (for PS5: EP4062-PPSA23801_00-SLUS203140000000 or EP4062-PPSA23801_00-TIMESPLITTERSTWO) 2024-08-20 PS4 patch 1.01 requires PS4 11.52, PS5 patch 1.00 requires PS5 9.40

* TimeSplitters: Future Perfect EP4062-CUSA49435_00-SLUS211480000000 (for PS5: EP4062-PPSA23847_00-SLUS211480000000 or EP4062-PPSA23847_00-TIMESPLITTERS3FP) 2024-08-20 PS4 patch 1.01 requires PS4 11.52, PS5 patch 1.00 requires PS5 9.40

* Tomb Raider: Legend UP8489-CUSA48389_00-SLUS212030000000 (PS5: UP8489-PPSA22453_00-SLUS212030000000 or UP8489-PPSA22453_00-0217126708396262) 2024-06-11 PS4 11.50

== PS2 games available on PS4 Bluray Disc ==

= Emulators =

{| cellspacing="0" cellpadding="2" border="1" class="wikitable" style="text-align: center; font-size:small;"

| Art of Fighting Anthology || Similar to RECVX. It was successful in fixing "'''Coraline'''." Sometimes called "AOFA" || 2.0 ||

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| Fatal Fury Battle Archives: Volume 2 || Similarly to RECVX, it is often used to fix frozen games. ||  ||  

|  || 2016 || ||

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| Forbidden Siren || The only emulator to fix '''Ice age 2''' being stuck at splash screen. It also fixed '''Gran turismo 4''' running abysmally slow. || 0.1 ||

| The King of Fighters 2000 || Seemingly one of the most GIF-accurate emus, it '''prevents Koei Tecmo games (Dynasty Warriors 5: Empires and Samurai Warriors 2) from suddenly freezing when battle starts. Moreover, it is likely the only emulator where '''Batman Begins''' does not crash.''' Often referred to as "KOF2000"|| 1.2 || '''Roguev1''', '''KOF98''', '''Okage'''

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| Destroy All Humans! 2 ||  || 0.7 ||  

|  || 2015 || ||

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| GTA III || Fixed the PAL version of '''Genji: Dawn of the Samurai'''. || 0.6 ||

| --mute-streaming-audio || all,none,main,bgm || || --mute-streaming-audio=all

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|  || || || Speedhacks / Desync Fixes|| ||

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| --ee-hook  || {{Variable}} || AdvanceClock<br>FastForwardClock<br>Mfifodrain || style="background:#212d9c; color:#ffffff;|4 Byte hex (offset),string,4 Byte hex (opcode),4 Byte Decimals (advanceclock value)|| Runs the specified functionality each time a selected EE offset is reached. FastForwardClock and AdvanceClock help fix core sync issues, but can be used as a speedhack. It is believed that AdvanceClock stalls the EE for a specified amount of cycles (numbers likely valued akin to eecyclescalar's), while FastForwardClock behaves similarly. They are commonly used on the offset directly succeeding an affected CTC2 instruction. For a mysterious reason, some offsets are ignored by AdvanceClock - it could be that this function only works on instructions 2 cycles ahead of a branch, likely specifically designed to work at both the start or end of a branch. However, this is only the case for old emulators like King Of Fighters 2000 and War Of The Monsters. Newer ones such as Jak operate differently, where AdvanceClock only works 2 cycles ahead at the end of a branch instruction.<pre>

0x4 beq zero,v1,0x0 <-- Advancelock cannot work here

0x8 nop <-- Advancelock cannot work here

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|-style="background-color:#D7EF54"

| --fpu-no-clamp-range || {{Exclusive}} || start,end offset (0x0 - 0x1FFFFFF) || style="background:#5c32a8; color:#ffffff;"|Hex combination || Per-range clamping for the FPU in the selected memory range. || --fpu-no-clamp-range=0x1acce0,0x2acce0

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| --fpu-accurate-addsub || {{Universal}} || 0 = Disabled<br>1 = Enabled || {{Binary}} || Allows the FPU to accurately Add/Subtract for all offsets by using software floats rather than hardware floats. Though slow on PS4, many games that work fine on PCSX2 (Pac-Man World 3, Jackie Chan Adventures) experience issues on PS4 because ADD/SUB is disabled by default. || --fpu-accurate-addsub=1

|  || || || Speedhacks || ||

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| --cop2-opt-vf00 || {{Universal}} || 0, 1, 2 || {{Semi-Binary}} || Seems to be a hacky way of optimization through the vf00 register. || --cop2-opt-vf00=1

|  || || || Other || ||

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| --cop2-inst-q || {{Universal}} || 0, 1 || {{Binary}} || instant Q, no stalling on VWAITQ, or instances of Q. Crashes some games when enabled. ||

| || || || Graphical fixes  || ||

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| --vu-custom-min-max  || {{Universal}} || 0, 1 || {{binary}} || Custom Max/Mini logic for denormals. Disabled on pcsx2 by default but enabled by default on a couple of emus such as jakv2. Disabling it could potentially restore missing graphics, as it tends to adjust VU timing.|| --vu-custom-min-max=0

|  || ||  || Speedhacks || ||

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|-style="background-color:#FEA15C"

|  ||  || || Other || ||

| --vu-jit-disasm  || {{Universal}} || 0, 1, 2 || {{Semi-Binary}} || ? || --vu-jit-disasm=1

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|  || || Speedhacks || ||  ||

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$ goes to the specified succeeding offsets. $0 will go 2 bytes forward and change them. $1 will go 4 bytes forward and change the 2 bytes specified. For example, $0,$1 will change the 4 bytes ahead as the specified 2 bytes' value.

'-' or '+' Changes the specified preceding or succeeding 2 bytes of VU1 mpg cycles' offset according to the added number. Adding -1, for example will change the 2 bytes before it. Likewise, adding -2 will go 4 bytes away and change the specified 2 bytes accordingly. It even can change EE cycle scalar itself if you go far enough. These numbers are in HEX. Infinite amounts of '-' and '+' symbols seem to be supported.</pre>

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| --vu1-const-prop || {{Universal}} || 0, 1|| {{binary}} || Enabled by default. 0 will disable it and cause performance issues but with higher compatability.[https://github.com/PCSX2/pcsx2/blob/58f5a5b915915293b90e7e8f34c33f9c0424d1e8/pcsx2/x86/microVU_Misc.h#L312 More info] || --vu1-const-prop=1

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| --vu1-opt-vf00 || {{Universal}} || 0, 1, 2 || {{Semi-Binary}} || Seems to be a hacky way of optimization through the vf00 register. || --vu1-opt-vf00=2

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|-style="background-color:#D7EF54"

| --vu1-clamp-range || {{Exclusive}} || vu1 memory offset start,end (0x0 - 0x800) ||  style="background:#5c32a8; color:#ffffff;"|Hex combination || Values must not exceed 0x800 ||

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| --vu1-native-patch || {{Exclusive}} || 0, 1 || {{binary}} || Use native patches from recompiler, not compatible with Jak emus. Sony uses it for their official release of Primal || --vu1-native-patch=1

| --vu0-no-clamping || {{Universal}} || 0,1 || {{binary}} || Changes the clamping behavior of the VU0. Setting specific to ps4 emulators, unimplemented in pcsx2. The default emulator's value is 1. || --vu0-no-clamping=0

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|-style="background-color:#FEA15C"

|  || || Other || || ||

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| --vu0-inst-q || {{Universal}} || 0, 1  || {{binary}} || instant Q, no stalling on WAITQ, or instances of Q  || --vu0-inst-q=1

| --vif1-ignore-cmd-ints || {{Exclusive}} || 0, 1 ||  {{Binary}} ||  Set to 1 to ignore command interrupt bit. ([https://psi-rockin.github.io/ps2tek/#vifcommands info] , explanation of int bit is right before command list). Can in some cases fix games that freeze while showing the same frame if set to 1. Games likes "Men in Black II - Alien Escape" and "Test Drive Unlimited" Will always need it. || --vif1-ignore-cmd-ints=1

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|  ||  || || || SIF1 (IOP) ||

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|-style="background-color:#99ddff"

|  ||  || || || SIF0 (EE) ||

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! Command !! Emulator Support !! Values !! Value Type !! Notes !! Usage  

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==== [https://www.psdevwiki.com/ps2/Graphics_Synthesizer GS] ====

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| --gs-use-mipmap || {{Universal}} || Default = 0<br>Values = 0, 1 || {{binary}} || Enables mipmapping support. Can be used to fix graphics. Needs --gs-kernel-cl="mipmap" for full mipmapping support. If upscaling, however, --gs-kernel-cl-up="mipmap2x2" is also needed. It works best on War of the Monsters emulator, as can be seen in the Ratchet series' mipmapping issues responding only to this emu's mipmapping functionality.|| --gs-use-mipmap=1

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| --gs-use-clut-merge || {{Universal}} || 0, 1 ||  {{binary}} || Enabling CLUT merging helps improve how the emulator processes textures that use indexed color palettes. It ensures more accurate emulation of the PS2’s color handling. It sometimes restores missing graphical elements, and fix texture flickering (prominently flickering shadows or UI elements).  It prevents Spyro's shadow from flickering in Enter the Dragonfly. Enabling it is the accurate, albeit slow option. || --gs-use-clut-merge=1

| --gs-flush-ad-xyz || {{Exclusive}} ||  always, safe, safeZwrite, off, 0 || {{string}} || Force a primitive flush when a framebuffer is also an input texture. This fixes some processing effects, but it can sometimes be heavy on the GS in terms of performance. GTA: SA, and Jak 3 use this command. || --gs-flush-ad-xyz=safe

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|-style="background-color:#D7EF54"

| --gs-fieldswap-delay || {{Universal}} || Default = 0<br>Highest = 254 || {{1 Byte}} || Wait longer than usual to change field. In essence, it blurs/sharpens image. ||

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| --gs-render-tile-threshold || {{Exclusive}} || Lowest = 0<br>Default = 4294967295 || {{4 Bytes}}  || Unknown. Used by Psychonauts|| --gs-render-tile-threshold=300000

| --threaded-gs || {{Universal}} || 0, 1 || {{binary}} || Multi-threaded-gs ? || --threaded-gs=1

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| --gs-motion-factor || {{Universal}} || 25, 50 ||  {{1 Byte}} || Unknown. Used by Wild ARMS 3|| --gs-motion-factor=25

|  || || Other || || ||

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| --framelimiter || {{Universal}} ||  0, 1 || {{binary}} || Enable or disable Frame limiting || --framelimiter=1

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<pre>The emulated I/O Processor (IOP) settings. Commands here are rarely useful, as very few games will require them. The IOP controls the emulated DEV9, SPU2, USB, Memory cards, CDVD, Firewire, along with other input/output devices</pre>

| --iop-tight-slice-count || {{Exclusive}} || Fastest = 0<br>Default = 8<br>Slowest=65534 || {{4 Bytes}} || Seems to slow down the iop the higher the value. Can be used to fix CDVD timing issues. || --iop-tight-slice-count=12

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| --iop-block-validation || {{Universal}} || IsC, ShortHash, Hash || {{string}} || Way of validating that block been modified, and require recompilation. Other Possible values include PageProt, None, PageProtection || --iop-block-validation=IsC

| --detect-idle-iop || {{Universal}} || 0, 1  || {{binary}}|| Enabled by default. || --detect-idle-iop=0

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| --iop-evt-check-full || {{Universal}} || 0, 1 ?|| {{binary}} || ||  

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<pre>The emulated CDVD settings. These commands help games with timing issues.</pre>

| --boot-disc-id || {{Universal}} || 1-5  ||  {{1 Byte}} || sets boot disc for multi-disc pkg || --boot-disc-id=0

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|-style="background-color:#46a4e8"

|  || || Timing || || ||

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| --verbose-cdvd-reads || {{Universal}} || 0, 1 || {{Binary}} || Significantly helps games with CDVD timing issues when set to 1. || --verbose-cdvd-reads=0

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| {{cellcolors|#0b9fb3|#000000}}VuAddSubHack ||{{cellcolors|#03fcb1|#000000}}--vu-hack-triace=1 || Required for every single game developed by TriAce

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| {{cellcolors|#0b9fb3|#000000}}eeRoundMode: || {{cellcolors|#03fcb1|#000000}}--fpu-accurate-muldiv=1<br>--fpu-accurate-addsub=1 ||

*A PS4 log from loading that kind of config: https://pastebin.com/ZpUyU8DE

{| cellspacing="0" cellpadding="2" border="1" class="wikitable" style="text-align: center; font-size:small;"

| No support for EE Cache || Ice Age 2, DOA2: Extreme, Nascar 2009, Barnyard, [https://github.com/PCSX2/pcsx2/issues/2248 Others]|| Lua patches to the EE memory and picking the right emulator ||  

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| Missing COP2 pipeline emulation. ||  [https://github.com/PCSX2/pcsx2/issues/4439 other games affected by COP2 timing]  || Rearranging code through lua patches. || While COP2 is a part of EE, in terms of emulation it's a separate processor that can run on its own. Consequently, some operations take a long time while EE still minds own its business. Some games abuse this and do their own thing, knowing that COP2 calculation takes an expected number of cycles. On this emu, every COP2 opcode is instant, which break games that expect it to take some time.

| DMA writes when busy signal is engaged || Ratchet and Clank games, Metal gear solid 2, others || None yet || AKA eetiminghack

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|Reading VU TPC registers returns wrong values || Street Fighter 3 EX(VU0), R: Racing Revolution(VU0), Spiderman 3 (VU0, in T-Bit handler...), Edge of Reality games(VU1) || Patches in lua. || In this emu TPC stores full addresses, which is wrong. Real hardware keep there addr >> 3. Worth noting that EoR games read VU1 TPC in a nasty way, accessing 0x43A0(VU1 TPC) from COP2 code.

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| Corrupted SIF0 transfer when not full QW is send by IOP || True Crime: LA, PDC DC 2008, Street Racing Syndicate(1.03) || Patches in lua. || IOP is able to send words by SIF0, EE DMAC can only transfer Quadwords. When IOP send not full QW real hardware use whatever was in buffer from previous transfer for missing words (only words that are requested by iop are overwritten in transfer buffer). Emu probably memset 0 that part.

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| Bad timing || Unavailable || Ape Escape 3 || Sudden burst of in-game speed at some random points in the map || Unavailable

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| ? || vu0RoundMode: 2 || Ape Escape 3 || The character's buster malforms when spawning anew || #11386

* [https://archive.org/details/sony-playstation-2-manuals-scea Archive of official manuals of PS2 Classic for PS4 games hosted on Amazon AWS (2022-09-21)]

* [https://psi-rockin.github.io/ps2tek/ PS2 Hardware Documentation]

* [https://pastebin.com/yf802Up3 Graphics Synthetizer title fix guide]

* [https://www.romhacking.net/utilities/692/ PS2DIS, a very helpful tool for debugging executables]

* [https://forums.pcsx2.net/Thread-Fixing-unplayable-games A thread filled with patches for ps2 games]

* [https://github.com/florinsdistortedvision/ps2-classics-emus Most base emulators for PS2 Classics released on PS4 by florinsdistortedvision]

* [https://github.com/Zcor3x/Playstation-2-Classics-PS4 Most base emulators for PS2 Classics released on PS4 by Zcor3x]

{{Reverse Engineering}}