Editing PS2 Emulation

==Description==
[[File:Ps2_block_diagram.png|200px|thumb|right|Simplified block diagram of a PS2<br />[http://www.philvaz.com/games/PS2.htm source]]]
Emulation of Playstation 2 is currently handled by 3 kind of emulators. CECH-A/B models use ps2_emu.self able to use built-in PS2 hardware (EE/GS/Rambus memory), and have best compatibility. CECH-C/E use ps2_gxemu, this emulator use physical Graphic Synthesizer found in this ps3 model, but Emotion Engine is fully emulated here, also there is no Rambus memory. All other models emulate PS2 thru fully software based ps2_netemu used for ps2 classics, and hacked now to use decrypted ISO files. Earlier before Sony provided ps2 classics on PS Store there was another soft only emulator strongly based on ps2_gxemu. It was called ps2_softemu, and had support for original PS2 CDVD. Only emulator not able to run physical discs is ps2_netemu. 

Emulators are self files, but not typical one. Emulators are not truly PS3 Game OS elf executables, but Guest OS'es running on LV1 of PS3. This mean that LV2, or more friendly Game OS is unloaded before emulator is loaded. This also mean that while emulators are running we can't call any LV2 function. Also LV1 syscalls are limited to call from all emulators, but can be fully unlocked.

All emulators use built-in stripped developement version of PS2 BIOS with disabled debug functions that can affect some games. This is done because some games print debug info on screen when found that are run on dev bios. Bios between ps2_emu, and ps2_gxemu/ps2_netemu are different. Ps2_emu BIOS is able to run only on ps2emu version of emulator due to RDRAM check.

PS3 models without Emotion Engine unit use "SPE-compatible SIMD graphics-rounding mode for VMX/Altivec Instructions" for FPU, and VU0 emulated floats calculations. This is set on emulator init by HV call 97 with param 1. VU1 actually run at SPE core so no compatibility mode need (or can) to be set. SPE compatible mode for PPE mean that rounding mode is set as round to zero, denormals are treated as zero, and there are no infinities or NaNs. So theoretically what PS2 FPU/VU was originally. Although SPE and PPE SPE compatibility mode is still inaccurate comparing to PS2, because Sony decided to cut off 2 guard bits from calculations on PS2. Probably because there was no need for round and sticky bits (no Nan/Inf, one round mode, etc.). Additionally float divide algorithm is custom and not fully understood up to this day. Good example here are TriAce games, or Castlevania COD where SPE calculation is wrong by 1 bit making games unplayable without patch. This are PS2 math algo specific inaccuracies in FPU/VU implementation that are not present on any other hardware.

Note: 
* not available in early Tool/DECR and Debug/DEX firmwares. But available in AV TOOL firmware since 1.00
* Emulation is based on a SCPH-50000/SCPH-20401 Playstation 2 Model.
* [https://web.archive.org/web/20211118050305/http://unina.stidue.net/Universita'%20di%20Trieste/Ingegneria%20Industriale%20e%20dell'Informazione/Tuzzi/Architetture_Avanzate_dei_Calcolatori/Emotion_2.pdf Introduction to PlayStation2 Architecture.pdf]
* ps2tek docs - https://psi-rockin.github.io/ps2tek/

==PS2 emulators workload comparison==
{{PS2 emulators workload comparison}}

==PS2 Emulator Types and Revisions==

<div>
<div style="float:top; text-align:center;">'''PS2 Emulator Types and Revisions'''</div>
<div style="float:left; width:28%;">
{| class="wikitable" style="font-size:xx-small;"
|+ ps2_emu.elf (decrypted)
! Firmware !! Bytes !! MD5 !! Timestamp !! <abbr title="Revision">Rev</abbr> !! <abbr title="Maximun number of supported commands">Comm</abbr>
|-
! [[1.00_AV|1.00 AV]]
| 8 258 328 || 19DC714F1109FF772BEF5B00C4AF2CF7 || 06/10/04/12:15 || ? || ?
|-
! [[1.02_CEX|1.02]]
| 8.258.504 || FF9C1C465DF6F501E418602A488CBD40 || 06/10/21/00:01 || ? || ?
|-
! [[1.10_CEX|1.10]]
| 8.254.568 || 72EFF1FB3E9A175253687634B698CC91 || 06/11/09/06:08 || ? || ?
|-
! [[1.11_CEX|1.11]]
| 8.255.192 || 98BCC06ACA07971DFE57A126000B6DEE || 06/11/21/17:54 || ? || ?
|-
! [[1.30_CEX|1.30]]
| 8.787.800 || 3F1E943139329E8AD5461FA43DB4DD0E || 06/12/05/05:33 || rowspan="2" | same || rowspan="2" | ?
|-
! [[1.30_AV|1.30 AV]]
| 8.787.800 || F2CE2D8CF41FF38E586AE7A91A13980C || 06/12/05/07:15
|-
! [[1.31_CEX|1.31]]
| 8.790.440 || CF13D31F202DA3C55009C06B6A2B27A0 || 06/12/12/18:47 || ? || ?
|-
! [[1.32_CEX|1.32]]
| 8.794.664 || 6DD631EEDE321AC7F59C85BC6AC0DCA9 || 06/12/18/05:54 || ? || ?
|-
! [[1.50_CEX|1.50]]
| 8.805.912 || 81B38EE824E460385B44FADE78CAA5DC || 07/01/18/22:52 || ? || ?
|-
! ?
| ? || ? || ? || ? || ?
|-
! [[1.70_CEX|1.70]]
| 8.854.680 || CEACBB22EB450C5CC587C193CE7BBE91 || 07/04/16/16:11 || ? || ?
|-
! ?
| ? || ? || ? || ? || ?
|-
! [[1.90_CEX|1.90]]
| 5.190.280 || 88B26FDC910B8633613BC366D39F439D || 07/07/21/06:44 || ? || ?
|-
! ?
| ? || ? || ? || ? || ?
|-
! [[2.10_CEX|2.10]]
| 5.223.112 || CB1924E7163F01EA2DD3965918BACCE4 || 07/12/15/05:29 || ? || ?
|-
! ?
| ? || ? || ? || ? || ?
|-
! [[3.40_CEX|3.40]]
| 5.267.128 || 916603300F798139456FCF1A40384A97 || 10/06/23/15:44 || ? || ?
|-
! ?
| ? || ? || ? || ? || ?
|-{{cellcolors|#ddddff}}
! [[3.66_CEX|3.66]]
| rowspan="3" | 5.267.112 || BE20230D091F5C8AB8364607D49A6992 || 11/06/16/03:51 || rowspan="3" | same || rowspan="3" | ?
|-{{cellcolors|#ddddff}}
! ~
| colspan="2" style="text-align:center; background-color:#ddddff;" | ''Any''
|-{{cellcolors|#ddddff}}
! [[3.74_CEX|3.74]]
| 5B2CA12EE08298094177667C681BC75F || 11/10/25/00:30
|-{{cellcolors|#bbbbff}}
! [[4.00_CEX|4.00]]
| rowspan="2" | 5.272.152 || 08516640BE636F3E633C0416F09EF941 || 11/11/22/03:10 || rowspan="2" | same || rowspan="2" | ?
|-{{cellcolors|#bbbbff}}
! [[4.01_CEX|4.01]]
| 61ECD51036247547736274EEB52FA4C4 || 11/12/23/01:02
|-{{cellcolors|#ddddff}}
! [[4.10_CEX|4.10]]
| rowspan="2" | 5.272.008 || 88CFD465D2F412C075C69531278BB3A9 || 12/02/05/23:08 || rowspan="2" | same || rowspan="2" | ?
|-{{cellcolors|#ddddff}}
! [[4.11_CEX|4.11]]
| 2B45F72675B844C08E1735059F9826E3 || 12/02/11/07:05
|-{{cellcolors|#bbbbff}}
! [[4.20_CEX|4.20]]
| rowspan="2" | 5.272.264 || 23D3F9909EBA3F1AB0D757850C5D6809 || 12/06/15/02:01 || rowspan="2" | same || rowspan="2" | ?
|-{{cellcolors|#bbbbff}}
! [[4.21_CEX|4.21]]
| 110F0D01B39193F1A2031BBC7ADBBC2F || 12/06/30/01:06
|-
! [[4.23_SEX|4.23 S]]
| 5.271.912 || 783201F2541117E545B8E01B3A0B1955 || 12/07/31/00:17 || ? || ?
|-
! [[4.25_CEX|4.25]]
| 5.272.264 || C895EAA3F79BA2040D6C828A5B811139 || 12/09/07/06:55 || ? || ?
|-
! ?
| ? || ? || ? || ? || ?
|-
! ?
| ? || ? || ? || ? || ?
|-
! ?
| ? || ? || ? || ? || ?
|-
! colspan="6" style="background:#80ff80; line-height:75%" | Abandoned (last revision)
|-{{cellcolors|#ddddff}}
! [[4.78_CEX|4.78]]
| rowspan="3" | 5.274.984 || ABC9228FCEA0E779E3157CA546A1FD02 || 15/12/17/01:14 || rowspan="3" | same || rowspan="3" | ?
|-{{cellcolors|#ddddff}}
! ~
| colspan="2" style="text-align:center; background-color:#ddddff;" | ''Any''
|-{{cellcolors|#ddddff}}
! [[4.89_CEX|4.89]]
| 7523DE6D38B13B9C4B9F72419C50D4A7 || 22/02/04/14:35
|}
<span style="font-size:small">
{{dot}}'''Decrypted (elf)''': changes <abbr title="when comparing two decrypted files of the same revision from different firmwares the only difference is the build label">every firmware version</abbr><br>
{{dot}}'''<abbr title="0x20 bytes">Build label</abbr>''': yes, with timestamp, search for '''ps2ver:'''<br>
{{dot}}'''Target Firmware''': no/unknown<br>
{{dot}}'''Revision''': unknown
</span>
</div>
<div style="float:left; width:24%;">
{| class="wikitable" style="font-size:xx-small;"
|+ ps2_gxemu.elf (decrypted)
! Firmware !! Bytes !! MD5 !! <abbr title="Revision">Rev</abbr> !! <abbr title="Maximun number of supported commands">Comm</abbr>
|-
! [[1.00_CEX|1.00]] ~ [[1.32_CEX|1.32]]
| colspan="4" {{no}}
|-
! [[1.50_CEX|1.50]]
| 6.106.040 || BACC208C8A793F82D71F85B02DD2D318 || ? || ?
|-
! ?
| ? || ? || ? || ?
|-
! [[1.70_CEX|1.70]]
| 6.763.336 || B70A15512EF9FA74B798A5E9241FE571 || ? || ?
|-
! ?
| ? || ? || ? || ?
|-
! [[1.90_CEX|1.90]]
| 6.802.720 || B9E2CC8D72779650D9B500B75AE552EB || ? || ?
|-
! ?
| ? || ? || ? || ?
|-
! [[2.10_CEX|2.10]]
| 6.822.576 || E34C4EB587CCE44AB4B92D848DC391A7 || ? || ?
|-
! ?
| ? || ? || ? || ?
|-
! [[3.40_CEX|3.40]]
| 6.866.424 || 80091C68E2F8D2385A2125AB38085A3C || ? || ?
|-
! ?
| ? || ? || ? || ?
|-
! [[3.66_CEX|3.66]] ~ [[3.74_CEX|3.74]]
| 6.867.024 || E04FA0FE63A968C53AE366B3AAD0141A || ? || ?
|-
! [[4.00_CEX|4.00]] ~ [[4.11_CEX|4.11]]
| 6.871.848 || D5E97019132848203970213FF96F2AAB || ? || ?
|-
! [[4.20_CEX|4.20]] ~ [[4.25_CEX|4.25]]
| 6.872.128 || 678F16283CAA8CFBC03A5FBCB6ABA41E || ? || ?
|-
! ?
| ? || ? || ? || ?
|-
! ?
| ? || ? || ? || ?
|-
! ?
| ? || ? || ? || ?
|-
! colspan="6" style="background:#80ff80; line-height:75%" | Abandoned (last revision)
|-
! [[4.78_CEX|4.78]] ~ [[4.89_CEX|4.89]]
| 6.874.848 || C7681420A7B3A2A6E3BF89F4A12A3DD6 || ? || 0x2B ?
|}
<span style="font-size:small">
{{dot}}'''Decrypted (elf)''': changes <abbr title="when comparing two decrypted files of the same revision from different firmwares there are no differences">every emu revision</abbr><br>
{{dot}}'''<abbr title="0x20 bytes">Build label</abbr>''': no/unknown<br>
{{dot}}'''Target Firmware''': no/unknown<br>
{{dot}}'''Revision''': unknown
</span>
</div><div style="float:left; width:24%;">
{| class="wikitable" style="font-size:xx-small;"
|+ ps2_softemu.elf (decrypted)
! Firmware !! Bytes !! MD5 !! <abbr title="Revision">Rev</abbr> !! <abbr title="Maximun number of supported commands">Comm</abbr>
|-
! [[1.00_CEX|1.00]] ~ [[1.82_CEX|1.82]]
| colspan="4" {{no}}
|-
! [[1.90_CEX|1.90]] ~ [[1.94_CEX|1.94]]
| 6.142.080 || 812330515D01291488315BBE7E0F339E || 11065 || ?
|-
! [[1.97_CEX|1.97]]
| ? || ? || ? || ?
|-
! [[2.00_CEX|2.00]] ~ [[2.10_CEX|2.10]]
| 6.143.048 || C0964350E3E8EA80EB5C7CB34901E9DE || 11830 || ?
|-
! [[2.16_CEX|2.16]]
| ? || ? || ? || ?
|-
! ? ~ ?
| ? || ? || ? || ?
|-
! [[3.10_CEX|3.10]]
| ? || ? || ? || ?
|-
! [[3.15_CEX|3.15]]
| ? || ? || 12840 || ?
|-
! [[3.16_CEX|3.16]]
| ? || ? || ? || ?
|-
! ? ~ ?
| ? || ? || ? || ?
|-
! [[3.40_CEX|3.40]]
| 6.146.424 || 97C33E83E14399EED1BD4F5351443E1C || ? || ?
|-
! [[3.41-1_CEX|3.41]] ~ [[3.65_CEX|3.65]]
| ? || ? || 13474 || ?
|-
! [[3.66_CEX|3.66]] ~ [[3.71_CEX|3.71]]
| 6.147.120 || 513B9160AD8C199CAEFC82C1B7D9D794 || 15435 || ?
|-
! [[3.72_CEX|3.72]] ~ [[4.01_CEX|4.01]]
| 6.146.992 || 1232D3EEB48F301CBB61D76EB3046111 || 15529 || ?
|-
! [[4.10_CEX|4.10]]  ~ {{latestPS3}}
| colspan="4" {{no}}
|}
<span style="font-size:small">
{{dot}}'''Decrypted (elf)''': changes <abbr title="when comparing two decrypted files of the same revision from different firmwares there are no differences">every emu revision</abbr><br>
{{dot}}'''<abbr title="0x20 bytes">Build label</abbr>''': no/unknown<br>
{{dot}}'''Target Firmware''': no/unknown<br>
{{dot}}'''Revision''': unknown
</span>
</div><div style="float:left; width:24%;">
{| class="wikitable" style="font-size:xx-small;"
|+ ps2_netemu.elf (decrypted)
! Firmware !! Bytes !! MD5 !! <abbr title="Revision">Rev</abbr> !! <abbr title="Maximun number of supported commands">Comm</abbr>
|-
! [[1.00_CEX|1.00]] ~ [[3.66_CEX|3.66]]
| colspan="4" {{no}}
|-
! [[3.70_CEX|3.70]] ~ [[3.71_CEX|3.71]]
| 11.036.504 || 0D021D18CC63DDBDA530A93C41ABF865 || <abbr title="build r15686-gif-xdr-user2-usb3">15686</abbr> || rowspan="5" | 0x41
|-
! [[3.72_CEX|3.72]]
| 11.036.504 || 38EABD7E5F998BC04922CA3B70211208 || <abbr title="build r15842-target370">15842</abbr>
|-
! [[3.73_CEX|3.73]] ~ [[3.74_CEX|3.74]]
| 11.036.504 || F21110A93BBEA416749283E6BF3D3C6B || <abbr title="build r15936-target370">15936</abbr>
|-
! [[4.00_CEX|4.00]] ~ [[4.01_CEX|4.01]]
| 11.033.048 || F770442DFA626282B01FEBE3DDFFC477 || <abbr title="build r16195-target400">16195</abbr>
|-
! [[4.10_CEX|4.10]] ~ [[4.11_CEX|4.11]]
| 11.033.216 || 8F0885BCC80A3617E654BB6151F4F718 || <abbr title="build r16361-target410">16361</abbr>
|-
! [[4.20_CEX|4.20]] ~ [[4.23_SEX|4.23]]
| 11.033.728 || 8EB5492E453C50B6D728E7999A57A689 || <abbr title="build r16604-target420">16604</abbr> || rowspan="2" | 0x43
|-
! [[4.25_CEX|4.25]] ~ [[4.26_SEX|4.26]]
| 11.033.728 || E38059300E31432A62967770C3E99EF6 || <abbr title="build r16740-target420">16740</abbr>
|-
! [[4.30_CEX|4.30]] ~ [[4.31_CEX|4.31]]
| ? || ? || 16808 || 0x45
|-
! [[4.40_CEX|4.40]] ~ [[4.41_CEX|4.41]]
| ? || ? || 16916 || 0x46
|-
! [[4.45_CEX|4.45]] ~ [[4.46_CEX|4.46]]
| ? || ? || 17041 || 0x48
|-
! [[4.50_CEX|4.50]]
| ? || ? || 17179 || 0x4A
|-
! [[4.55_CEX|4.55]]
| ? || ? || 17277 || rowspan="2" | 0x4D
|- 
! [[4.60_CEX|4.60]] ~ [[4.76_CEX|4.76]]
| ? || ? || 17314
|-
! colspan="6" style="background:#80ff80; line-height:75%" | Abandoned (last revision)
|- 
! [[4.78_CEX|4.78]] ~ [[4.89_CEX|4.89]]
| 10.442.536 || 8B2DBD1AAD22A0EDCF9C867A1A1FB94D || <abbr title="build r17495-main-rel">17495</abbr> || 0x50
|}
<span style="font-size:small">
{{dot}}'''Decrypted (elf)''': changes <abbr title="when comparing two decrypted files of the same revision from different firmwares there are no differences">every emu revision</abbr><br>
{{dot}}'''<abbr title="0x20 bytes">Build label</abbr>''': yes, without timestamp, search for '''build r'''<br>
{{dot}}'''Target Firmware''': included in the build label<br>
{{dot}}'''Revision''': yes, <abbr title="the location can be seen by comparing 4.23 (value 0x40DC) with 4.25 (value 0x4164) at offset 0x3E4BA in both">'''one''' time</abbr>, and included in the build label
</span>
</div>
</div>
<br style="clear: both;" />

*Alternative tables<!-- What means TOC ?, is needed to explain it and/or include this TOC info in the other tables -->
{| class="wikitable" style="float:left; margin:5px"
|+ps2_emu.self
! FW version !! TOC !!  Notes
|-
| 1.00 AV || 0x7C3150 ||
|-
| 1.02 || 0x7C31F0 ||
|-
| 1.10 || 0x7C2168 ||
|-
| 1.11 || 0x7C23C8 ||
|-
| 1.30 || 0x8442E8 ||
|-
| 1.30 AV || 0x8442E8 ||
|-
| 1.31 || 0x844C98 ||
|-
| 1.32 || 0x845CA0 ||
|-
| 1.50 || 0x848728 ||
|-
| 1.90 || 0x4D7ED8 ||
|-
| 3.66 - 3.74 || 0x4E9A20 ||
|-
| 4.00 - 4.01 || 0x4EADB8 ||
|-
| 4.10 - 4.11 || 0x4EAD28 ||
|-
| 4.20 - 4.21 || 0x4EAE30 ||
|-
| 4.23 || 0x4EACE0 ||
|-
| 4.25 || 0x4EAE30 || Reverted to 4.20 - 4.21 version?
|-
| 4.78 - 4.82 || 0x4EB8C0 ||
|}

{| class="wikitable" style="float:left; margin:5px"
|+ps2_gxemu.self
! FW version !! TOC !!  Notes
|-
| 1.50 || 0x5BDFC8 ||
|-
| 1.90 || 0x666C78 ||
|-
| 3.66 - 3.74 || 0x6766B8 ||
|-
| 4.00 - 4.11 || 0x677990 ||
|-
| 3.66 - 3.74 || 0x677AA8 ||
|-
| 4.78 - 4.82 || 0x678548 || 
|}

{| class="wikitable" style="float:left; margin:5px"
|+ps2_softemu.self
! FW version !! TOC !!  Notes
|-
| 1.90 || 0x5C7B10 ||
|-
| 2.50 || 0x5C7ED8 ||
|-
| 3.41 || 0x5C8C00 || 
|-
| 3.66 - 3.71 || 0x5C8EC0 ||
|-
| 3.72 - 4.01 || 0x5C8E40 ||
|}

{| class="wikitable" style="float:left; margin:5px"
|+ps2_netemu.self
! FW version !! TOC !!  Notes
|-
| 3.73 - 3.74 || 0x7D8B00 ||
|-
| 4.00 - 4.01 || 0x7DA200 ||
|-
| 4.10 - 4.11 || 0x7DA180 ||
|-
| 4.20 - 4.25 || 0x7DA500 ||
|-
| 4.78 - 4.83 || 0x751280 || 
|}{{clear}}

==General observations regarding PS2 Classics emulator (ps2_netemu)==
* Virtual memory cards are per title based, but apparently run through the current memory card system. The module used to manage memory cards is: vmc_savedata_plugin.sprx - Using a regular memory card that has been renamed result in a "The save data is corrupt (8XXXXXXX) error"
* Loads an epilepsy warning before PS2 logo (PS button menu appears during epilepsy warning if controller is synced)
* Does not support online functionality of PS2 titles (network configuration utility inside Full Spectrum Warrior claims no network adaptor has been found, same with Syphon Filter: The Omega Strain).

- Only file that is needed in the folder for PS2 Classics is "iso.bin.enc". Removing the manuals/DXT files will cause the game to boot IMMEDIATELY to the PS2 logo upon switching to 720p/starting PS2 LPAR.

===LIMG Segment===
The ISO.BIN.ENC has a block of 0x4000 bytes added at the end codenamed "LIMG" that works as a descriptor for the ISO structure

{| class="wikitable"
|-
! Offset !! Length !! Name !! Example !! Description
|-
| 0x00 || 0x4 || '''magic''' || LIMG || '''L'''ogical '''IM'''a'''G'''e (layout) ?
|-
| 0x04 || 0x4 || '''img_type''' || 0x00000001 || 1=DVD<br>2=CD
|-
| 0x08 || 0x4 || '''sector_count''' || 0x00279890 || ''sector_count = img_size / sector_size''
|-
| 0x0C || 0x4 || '''sector_size''' || 0x0000800 || ''sector_size = img_size / sector_count''<br>0x800=DVD (Mode1/2048)<br>0x930=CD (Mode2/2352)
|-
| 0x10 || 0x3FF0 || ''padding'' || 0x00000000... || 
|}

===folder/file layout===
(in this example GTA San Andreas Classic)
<pre>
[NPUD20946]
       [USRDIR]
             [CONTENT]
                    001.dxt
                    002.dxt
                    003.dxt
                    004.dxt
                    005.dxt
                    006.dxt
                    007.dxt
                    008.dxt
                    009.dxt
                    010.dxt
                    011.dxt
                    012.dxt
                    013.dxt
                    014.dxt
                    015.dxt
                    016.dxt
                    017.dxt
                    Others.dxt
                    Manual.idx
             [SAVEDATA]
                    SCEVMC0.VME
                    SCEVMC1.VME
             CONFIG
             ISO.BIN.EDAT
             ISO.BIN.ENC
       PS3LOGO.DAT
       PARAM.SFO
       ICON0.PNG
       PIC0.PNG
       PIC1.PNG
       PIC2.PNG
</pre>

==Virtual PS2 (emulated machine) usage and features==

===Video Modes===
'''Note:''' Real PS2 : https://web.archive.org/web/20180802152820/http://users.neoscientists.org/~blue/ps2videomodes.txt

 Video Modes
 ----.-----------.---------------.-----------.-----------.
  No | Name      | Resolution	| fV(Hz)    | fH(kHz)   |
 ----+-----------+---------------+-----------+-----------|
   0 | NTSC-NI   |  640x240(224) | 59.940    | 15.734    |
   1 | NTSC-I    |  640x480(448) | 59.820    | 15.734    |
   2 | PAL-NI    |  640x288(256) | 50.000    | 15.625    |
   3 | PAL-I     |  640x576(512) | 49.760    | 15.625    |
   4 | VESA-1A   |  640x480      | 59.940    | 31.469    |
   5 | VESA-1C   |  640x480      | 75.000    | 37.500    |
   6 | VESA-2B   |  800x600      | 60.317    | 37.879    |
   7 | VESA-2D   |  800x600      | 75.000    | 46.875    |
   8 | VESA-3B   | 1024x768      | 60.004    | 48.363    |
   9 | VESA-3D   | 1024x768      | 75.029    | 60.023    |
  10 | VESA-4A   | 1280x1024     | 60.020    | 63.981    |
  11 | VESA-4B   | 1280x1024     | 75.025    | 79.976    |
  12 | DTV-480P  |  720x480      | 59.940    | 31.469    |
  13 | DTV-1080I | 1920x1080     | 60.000    | 33.750    |
  14 | DTV-720P  | 1280x720      | ??        | ??        |
 ----^-----------^---------------^-----------^-----------'

==Memory Mapping==

=== ps2netemu === 
{| class="wikitable"
|-
! Name !! ea !! lpar2(netemu 4.81) !! size !! flags !! lpar1(lv1 4.81)
|-
| text          ||          0x0 ||      0x3D00000 ||  0x300000(  3 MB) || 0x8000000000000003  0000000000000003 || 0x7D00000
|-                                                                                                                  
| ro_work       ||     0x300000 ||       0x300000 ||  0x500000(  5 MB) || 0x0000000000000003  0000000000000003 || 0x4300000
|-                                                                                                                  
| rw_work       ||     0x800000 ||       0x800000 || 0x2A00000( 42 MB) || 0x0000000000000001  0000000000000003 || 0x4800000
|-                                                                                                                  
| negmem        ||   0x1FFF0000 ||      0x3210000 ||   0x10000( 64 KB) || 0x0000000000000001  0000000000000000 || 0x7210000
|-                                                                                                                  
| ee_ram        ||  0x100000000 || 0x64000E000000 || 0x2000000( 32 MB) || 0x0000000000000001  0000000000000000 || 0x3C00000 - 0x3F00000, 0x8000000 - 0x9B00000
|-                                                                                                                  
| ee_jit_code   ||  0xD00000000 || 0x680024000000 || 0x3000000( 48 MB) || 0x8000000000000001  0000000000000003 || 0xBC00000 - 0xEB00000
|-                                                                                                                  
| vu0_jit_code  ||  0xD08000000 || 0x580000800000 ||  0x400000(  4 MB) || 0x8000000000000001  0000000000000003 || 0x900000 - 0xC00000
|-                                                                                                                  
| vu0_jit_data  ||  0xD0C000000 ||      0x3700000 ||  0x400000(  4 MB) || 0x0000000000000002  0000000000000003 || 0x7700000
|-                                                                                                                  
| eeram_jit_lut ||  0xE00000000 || 0x640010000000 || 0x2000000( 32 MB) || 0x0000000000000001  0000000000000003 || 0x9C00000 - 0xBB00000
|-                                                                                                                  
| eerom_jit_lut ||  0xE0FC00000 || 0x580000C00000 ||  0x400000(  4 MB) || 0x0000000000000001  0000000000000003 || 0xD00000 - 0x1000000
|-                                                                                                                  
| ee_dbg_ram    ||  0x90FFF8000 || 0x64000E078000 ||    0x8000( 32 KB) || 0x0000000000000001  0000000000000000 || 
|-                                                                                                                  
| iop_ram       ||  0x400000000 ||      0x3300000 ||  0x200000(  2 MB) || 0x0000000000000001  0000000000000000 || 0x7300000
|-                                                                                                                  
| iop_rom       ||  0x50FC00000 || 0x580001000000 ||  0x400000(  4 MB) || 0x0000000000000001  0000000000000002 || 0x1100000 - 0x1400000
|-                                                                                                                  
| iop_spad      ||  0x50F800000 ||      0x3220000 ||   0x10000( 64 KB) || 0x0000000000000001  0000000000000002 || 0x7220000
|-                                                                                                                  
| spu2_ram      ||  0x600000000 ||      0x3500000 ||  0x200000(  2 MB) || 0x0000000000000001  0000000000000000 || 0x7500000
|-                                                                                                                  
| spu2_ram2     ||  0x600200000 ||      0x3500000 ||  0x200000(  2 MB) || 0x0000000000000001  0000000000000000 || 0x7500000
|-                                                                                                                  
| spu2_pcm      || 0x1000000000 ||      0x3230000 ||   0x10000( 64 KB) || 0x0000000000000001  0000000000000000 || 0x7230000
|-                                                                                                                  
| ee_spr_lo     ||  0x700000000 ||      0x3201000 ||    0x2000(  8 KB) || 0x0000000000000001  0000000000000000 || 0x7201000
|-                                                                                                                  
| ee_spr        ||  0x800000000 ||      0x3203000 ||    0x6000( 24 KB) || 0x0000000000000001  0000000000000000 || 0x7203000
|-                                                                                                                  
| ee_vu0_dmem0  ||  0x301004000 ||      0x3200000 ||    0x1000(  4 KB) || 0x0000000000000001  0000000000000001 || 0x7200000
|-                                                                                                                  
| ee_vu0_dmem1  ||  0x301005000 ||      0x3200000 ||    0x1000(  4 KB) || 0x0000000000000001  0000000000000001 || 0x7200000
|-                                                                                                                  
| ee_vu0_dmem2  ||  0x301006000 ||      0x3200000 ||    0x1000(  4 KB) || 0x0000000000000001  0000000000000001 || 0x7200000
|-                                                                                                                  
| ee_vu0_dmem3  ||  0x301007000 ||      0x3200000 ||    0x1000(  4 KB) || 0x0000000000000001  0000000000000001 || 0x7200000
|-                                                                                                                  
| ee_rom        ||  0x30FC00000 || 0x580001000000 ||  0x400000(  4 MB) || 0x0000000000000001  0000000000000001 || 0x1100000 - 0x1400000
|-                                                                                                                  
| vrc           ||  0xC00000000 || 0x600005000000 || 0x1000000( 16 MB) || 0x0000000000000001  0000000000000000 || 0x1500000 - 0x2400000
|-                                                                                                                  
| /dev/zero     || 0x4000000000 ||      0x3240000 ||   0x10000( 64 KB) || 0x0000000000000001  0000000000000001 || 0x7240000
|-                                                                                                                  
| dma_vu0_dmem0 || 0x4001004000 ||      0x3200000 ||    0x1000(  4 KB) || 0x0000000000000001  0000000000000001 || 0x7200000
|-                                                                                                                  
| dma_vu0_dmem1 || 0x4001005000 ||      0x3200000 ||    0x1000(  4 KB) || 0x0000000000000001  0000000000000001 || 0x7200000
|-                                                                                                                  
| dma_vu0_dmem2 || 0x4001006000 ||      0x3200000 ||    0x1000(  4 KB) || 0x0000000000000001  0000000000000001 || 0x7200000
|-                                                                                                                  
| dma_vu0_dmem3 || 0x4001007000 ||      0x3200000 ||    0x1000(  4 KB) || 0x0000000000000001  0000000000000001 || 0x7200000
|-                                                                                                                  
| imm_vu0_dmem0 ||   0x30000000 ||      0x3200000 ||    0x1000(  4 KB) || 0x0000000000000001  0000000000000001 || 0x7200000
|-                                                                                                                          
| imm_vu0_dmem1 ||   0x30001000 ||      0x3200000 ||    0x1000(  4 KB) || 0x0000000000000001  0000000000000001 || 0x7200000
|-                                                                                                                          
| imm_vu0_dmem2 ||   0x30002000 ||      0x3200000 ||    0x1000(  4 KB) || 0x0000000000000001  0000000000000001 || 0x7200000
|-                                                                                                                          
| imm_vu0_dmem3 ||   0x30003000 ||      0x3200000 ||    0x1000(  4 KB) || 0x0000000000000001  0000000000000001 || 0x7200000
|-                                                                                                                          
| SGSXdr        || 0x1904000000 || 0x64000C000000 || 0x1700000( 23 MB) || 0x0000000000000001  0000000000000000 || 0x2500000 - 0x3B00000
|-                                                                                                                          
| iopTrace      || 0x1400000000 ||      0x3250000 ||   0x10000( 64 KB) || 0x0000000000000001  0000000000000000 || 0x7250000
|}

====SPE local storage====
Emulator access SPE LS by accessing special addresses. Mapping as follows:
{| class="wikitable"
|-
! SPE Num. !! SPE task !! Address in netemu !! address in SPE
|-
| 0 || IOP || 0x40000000 - 0x4003FFFF ||  0x0 - 3FFFF
|-
| 1 || SPU2 || 0x40080000 - 0x400BFFFF ||  0x0 - 3FFFF
|-
| 2 || VU1 || 0x40100000 - 0x4013FFFF ||  0x0 - 3FFFF
|-
| 3 || EEDMA || 0x40180000 - 0x401BFFFF ||  0x0 - 3FFFF
|-
| 4 || FE || 0x40200000 - 0x4023FFFF ||  0x0 - 3FFFF
|-
| 5 || BE || 0x40280000 - 0x402BFFFF ||  0x0 - 3FFFF
|-
| 6 || IPU || 0x40300000 - 0x4033FFFF ||  0x0 - 3FFFF
|-
|}

Additionally, emulator access SPU directly with those addresses. <br>

{| class="wikitable"
|-
! Address !! Channel !! Channel description !! Access type !! Notes
|-
| 0x44004 || SPU_Out_Mbox || SPU Outbound Mailbox Register || Read only || Used to read 32 bits of data from the corresponding SPU outbound mailbox queue. Outbound Mailbox Register has a corresponding SPU Write Outbound Mailbox Channel for writing data into outbound mailbox queue.
|-
| 0x4400C || SPU_In_Mbox || SPU Inbound Mailbox Register || Write only || Used to write 32 bits of data into the corresponding SPU inbound mailbox queue. Inbound mailbox queue has a corresponding SPU Read Inbound Mailbox Channel for reading data from the queue.
|-
| 0x44014 || SPU_Mbox_Stat || SPU Mailbox Status Register || Read only || Contains the current In_Mbox/Out_Mbox/Out_Intr_Mbox count of the mailbox queues in the corresponding SPE.  
|-
| 0x4401C || SPU_RunCntl || SPU Run Control Register || Read/Write || Used to start and stop the execution of instructions in the SPU. 
The SPU can dynamically change the state of the Run Status bit (that is, SPU_Status[R]).   
|-
| 0x44024 || SPU_Status || SPU Status Register || Read only || Used to report the status (state) of an SPU. Emulator use it mostly to check if SPU is running (bit31).
|-
| 0x44034 || SPU_NPC || SPU Next Program Counter Register || Read/Write || Contains the address from which an SPU starts executing when the Run Control bit is set in the SPU Run Control Register.
Used in function that start SPU programs, and in interrupts handlers, plus in few other places.
|-
| 0x5400C || SPU_Sig_Notify_1 || SPU Signal Notification 1 Register || Read/Write || Used to write data that can be read in SPU_RdSigNotify1 channel corresponding SPE.
|-
| 0x5C00C || SPU_Sig_Notify_2 || SPU Signal Notification 2 Register || Read/Write || Used to write data that can be read in SPU_RdSigNotify2 channel corresponding SPE.
|-
|}

Address = SPU base + Address. For example, IPU SPU is mapped to 0x40300000 so accessing SPU_Sig_Notify1 will be done by read/write to 0x4035400C.

===PS2 Memory and Hardware Mapped Registers Layout===
<pre>
EE Virtual/Physical Memory Map
  KUSEG: 00000000h-7FFFFFFFh User segment
  KSEG0: 80000000h-9FFFFFFFh Kernel segment 0
  KSEG1: A0000000h-BFFFFFFFh Kernel segment 1
  KSSEG: C0000000h-DFFFFFFFh Supervisor segment
  KSEG3: E0000000h-FFFFFFFFh Kernel segment 3
  
  Virtual    Physical
  00000000h  00000000h  32 MB    Main RAM (first 1 MB reserved for kernel)
  20000000h  00000000h  32 MB    Main RAM, uncached
  30100000h  00100000h  31 MB    Main RAM, uncached and accelerated
  10000000h  10000000h  64 KB    I/O registers
  11000000h  11000000h  4 KB     VU0 code memory
  11004000h  11004000h  4 KB     VU0 data memory
  11008000h  11008000h  16 KB    VU1 code memory
  1100C000h  1100C000h  16 KB    VU1 data memory
  12000000h  12000000h  8 KB     GS privileged registers
  1C000000h  1C000000h  2 MB     IOP RAM
  1FC00000h  1FC00000h  4 MB     BIOS, uncached (rom0)
  9FC00000h  1FC00000h  4 MB     BIOS, cached (rom09)
  BFC00000h  1FC00000h  4 MB     BIOS, uncached (rom0b)
  70000000h  ---------  16 KB    Scratchpad RAM (only accessible via virtual addressing)

IOP Physical Memory Map
  KUSEG: 00000000h-7FFFFFFFh User segment
  KSEG0: 80000000h-9FFFFFFFh Kernel segment 0
  KSEG1: A0000000h-BFFFFFFFh Kernel segment 1
  
  Physical
  00000000h  2 MB     Main RAM (same as on PSX)
  1D000000h           SIF registers
  1F800000h  64 KB    Various I/O registers
  1F900000h  1 KB     SPU2 registers
  1FC00000h  4 MB     BIOS (rom0) - Same as EE BIOS
  
  FFFE0000h (KSEG2)   Cache control

Additional Memory
  4 MB   GS VRAM (used for framebuffer, textures, zbuffer, etc)
  2 MB   SPU2 work RAM - quadrupled from PSX's SPU
  8 MB   Memory card


Hardware Mapped Registers
EE Map
EE Timers
  100000xxh        Timer 0
  100008xxh        Timer 1
  100010xxh        Timer 2
  100018xxh        Timer 3
Image Processing Unit (IPU)
  10002000h 8h     IPU Command
  10002010h 4h     IPU Control
  10002020h 4h     IPU bit pointer control
  10002030h 8h     Top of bitstream
  10007000h 10h    Out FIFO (read)
  10007010h 10h    In FIFO (write)
Graphics Interface (GIF)
  10003000h 4h     GIF_CTRL - Control register
  10003010h 4h     GIF_MODE - Mode setting
  10003020h 4h     GIF_STAT - Status
  10003040h 4h     GIF_TAG0 - Bits 0-31 of tag before
  10003050h 4h     GIF_TAG1 - Bits 32-63 of tag before
  10003060h 4h     GIF_TAG2 - Bits 64-95 of tag before
  10003070h 4h     GIF_TAG3 - Bits 96-127 of tag before
  10003080h 4h     GIF_CNT - Transfer status counter
  10003090h 4h     GIF_P3CNT - PATH3 transfer status counter
  100030A0h 4h     GIF_P3TAG - Bits 0-31 of PATH3 tag when interrupted
  10006000h 10h    GIF FIFO
DMA Controller (DMAC)
  100080xxh        VIF0 - channel 0
  100090xxh        VIF1 - channel 1
  1000A0xxh        GIF - channel 2
  1000B0xxh        IPU_FROM - channel 3
  1000B4xxh        IPU_TO - channel 4
  1000C0xxh        SIF0 - channel 5
  1000C4xxh        SIF1 - channel 6
  1000C8xxh        SIF2 - channel 7
  1000D0xxh        SPR_FROM - channel 8
  1000D4xxh        SPR_TO - channel 9
  1000E000h 4h     D_CTRL - DMAC control
  1000E010h 4h     D_STAT - DMAC interrupt status
  1000E020h 4h     D_PCR - DMAC priority control
  1000E030h 4h     D_SQWC - DMAC skip quadword
  1000E040h 4h     D_RBSR - DMAC ringbuffer size
  1000E050h 4h     D_RBOR - DMAC ringbuffer offset
  1000E060h 4h     D_STADR - DMAC stall address
  1000F520h 4h     D_ENABLER - DMAC disabled status
  1000F590h 4h     D_ENABLEW - DMAC disable
Interrupt Controller (INTC)
  1000F000h 4h     INTC_STAT - Interrupt status
  1000F010h 4h     INTC_MASK - Interrupt mask
Subsystem Interface (SIF)
  1000F200h 4h     MSCOM - EE->IOP communication
  1000F210h 4h     SMCOM - IOP->EE communication
  1000F220h 4h     MSFLAG - EE->IOP flags
  1000F230h 4h     SMFLAG - IOP->EE flags
  1000F240h 4h     Control register
Privileged GS registers
  12000000h 8h     PMODE - various PCRTC controls
  12000010h 8h     SMODE1
  12000020h 8h     SMODE2
  12000030h 8h     SRFSH
  12000040h 8h     SYNCH1
  12000050h 8h     SYNCH2
  12000060h 8h     SYNCV
  12000070h 8h     DISPFB1 - display buffer for output circuit 1
  12000080h 8h     DISPLAY1 - output circuit 1 control
  12000090h 8h     DISPFB2 - display buffer for output circuit 2
  120000A0h 8h     DISPLAY2 - output circuit 2 control
  120000B0h 8h     EXTBUF
  120000C0h 8h     EXTDATA
  120000D0h 8h     EXTWRITE
  120000E0h 8h     BGCOLOR - background color
  12001000h 8h     GS_CSR - control register
  12001010h 8h     GS_IMR - GS interrupt control
  12001040h 8h     BUSDIR - transfer direction
  12001080h 8h     SIGLBLID - signal

IOP Map
Subsystem Interface (SIF)
  1D000000h 4h     MSCOM - EE->IOP communication
  1D000010h 4h     SMCOM - IOP->EE communication
  1D000020h 4h     MSFLAG - EE->IOP flags
  1D000030h 4h     SMFLAG - IOP->EE flags
  1D000040h 4h     Control register
CDVD Drive
  1F402004h 1h     Current N command
  1F402005h 1h     N command status (R)
  1F402005h 1h     N command params (W)
  1F402006h 1h     Error
  1F402007h 1h     Send BREAK command
  1F402008h 1h     CDVD I_STAT - interrupt register
  1F40200Ah 1h     Drive status
  1F40200Fh 1h     Disk type
  1F402016h 1h     Current S command
  1F402017h 1h     S command status
  1F402018h 1h     S command params
Interrupt Control
  1F801070h 4h     I_STAT - Interrupt status
  1F801074h 4h     I_MASK - Interrupt mask
  1F801078h 1h     I_CTRL - Global interrupt disable
DMA registers
  1F80108xh        MDECin - channel 0
  1F80109xh        MDECout - channel 1
  1F8010Axh        SIF2 (GPU) - channel 2
  1F8010Bxh        CDVD - channel 3
  1F8010Cxh        SPU2 Core0 - channel 4
  1F8010Dxh        PIO - channel 5
  1F8010Exh        OTC - channel 6
  1F80150xh        SPU2 Core1 - channel 8
  1F80151xh        ??? - channel 9
  1F80152xh        SIF0 - channel 10
  1F80153xh        SIF1 - channel 11
  1F80154xh        SIO2in - channel 12
  1F80155xh        SIO2out - channel 13
  
  1F8010F0h 4h     DPCR - DMA priority control
  1F8010F4h 4h     DICR - DMA interrupt control
  1F801570h 4h     DPCR2 - DMA priority control 2
  1F801574h 4h     DICR2 - DMA priority control 2
IOP Timers
  1F80110xh        Timer 0
  1F80111xh        Timer 1
  1F80112xh        Timer 2
  1F80148xh        Timer 3
  1F80149xh        Timer 4
  1F8014Axh        Timer 5
Serial Interface (SIO2)
  1F808200h 40h    SEND3 buffer
  1F808240h 20h    SEND1/2 buffers
  1F808260h 1h     In FIFO
  1F808264h 1h     Out FIFO
  1F808268h 4h     SIO2 control
  1F80826Ch 4h     RECV1
  1F808270h 4h     RECV2
  1F808274h 4h     RECV3
Sound Processing Unit (SPU2)
  1F900000h 180h   Core0 Voice 0-23 registers
  1F900190h 4h     Key ON 0/1
  1F900194h 4h     Key OFF 0/1
  1F90019Ah 2h     Core attributes
  1F90019Ch 4h     Interrupt address H/L
  1F9001A8h 4h     DMA transfer address H/L
  1F9001ACh 2h     Internal transfer FIFO
  1F9001B0h 2h     AutoDMA status
  1F9001C0h 120h   Core0 Voice 0-23 start/loop/next addresses
  1F900340h 4h     ENDX 0/1
  1F900344h 2h     Status register
  
  ... above addresses repeat for Core1 starting at 1F900400h ...
  
  1F900760h 2h     Master Volume Left
  1F900762h 2h     Master Volume Right
  1F900764h 2h     Effect Volume Left
  1F900766h 2h     Effect Volume Right
  1F900768h 2h     Core1 External Input Volume Left
  1F90076Ah 2h     Core1 External Input Volume Right
 </pre>

== Memory Allocation ==
===ps2_netemu===
{| class="wikitable"
|-
! Name !! Size !! page_log2 !! lpar2(netemu 4.81) !! lpar1(lv1 4.81)
|-
| ra_vu0_dmem   ||    0x1000 (4 KB) || 12 (4 KB) ||      0x3200000 || 0x7200000
|-                                                                       
| ra_ee_spr_lo  ||    0x2000 (8 KB) || 12 (4 KB) ||      0x3201000 || 0x7201000
|-                                                                       
| ra_ee_sprx    ||    0x6000 (24 KB) || 12 (4 KB) ||      0x3203000 || 0x7203000
|-                                                                       
| ra_negmem     ||   0x10000 (64 KB) || 16 (64 KB) ||      0x3210000 || 0x7210000
|-                                                                       
| ra_iop_spad   ||   0x10000 (64 KB) || 16 (64 KB) ||      0x3220000 || 0x7220000
|-                                                                       
| ra_spu2_pcm   ||   0x10000 (64 KB) || 16 (64 KB) ||      0x3230000 || 0x7230000
|-                                                                       
| ra_nulls      ||   0x10000 (64 KB) || 16 (64 KB) ||      0x3240000 || 0x7240000
|-                                                                       
| ra_itrace     ||   0x10000 (64 KB) || 16 (64 KB) ||      0x3250000 || 0x7250000
|-                                                                       
| ra_iop_ram    ||  0x200000 (2 MB) || 20 (1 MB) ||      0x3300000 || 0x7300000
|-                                                                       
| ra_spu2_ram   ||  0x200000 (2 MB) || 20 (1 MB) ||      0x3500000 || 0x7500000
|-                                                                       
| ra_vu0_code   ||  0x400000 (4 MB) || 20 (1 MB) || 0x580000800000 || 0x900000 - 0xC00000
|-                                                                       
| ra_vu0_data   ||  0x400000 (4 MB) || 20 (1 MB) ||      0x3700000 || 0x7700000
|-                                                                       
| ra_ee_rom_pc  ||  0x400000 (4 MB) || 20 (1 MB) || 0x580000C00000 || 0xD00000 - 0x1000000
|-                                                                       
| ra_ps2_rom    ||  0x400000 (4 MB) || 20 (1 MB) || 0x580001000000 || 0x1100000 - 0x1400000
|-                                                                       
| ra_vrc_mem    || 0x1000000 (16 MB) || 20 (1 MB) || 0x600005000000 || 0x1500000 - 0x2400000
|-                                                                       
| ra_sgs_xdr    || 0x1700000 (23 MB) || 20 (1 MB) || 0x64000C000000 || 0x2500000 - 0x3B00000
|-                                                                       
| ra_ee_ram     || 0x2000000 (32 MB) || 20 (1 MB) || 0x64000E000000 || 0x3C00000 - 0x3F00000, 0x8000000 - 0x9B00000
|-                                                                       
| ra_ee_ram_pc  || 0x2000000 (32 MB) || 20 (1 MB) || 0x640010000000 || 0x9C00000 - 0xBB00000
|-                                                                       
| ra_trans_code || 0x3000000 (48 MB) || 20 (1 MB) || 0x680024000000 || 0xBC00000 - 0xEB00000
|}


==Controller==
{| class="wikitable sortable"
|-
! ID !! Controller #Number !! Note
|-
| 1 (1-A) || 1 ||
|-
| 2 (2-A) || 2 ||
|-
| 3 (1-B) || 3 ||
|-
| 4 (2-B) || 4 ||
|-
| 5 (1-C) || 5 || Gamepad LED #1 + #4
|-
| 6 (2-C) || 6 || Gamepad LED #2 + #4
|-
| 7 (1-D) || 7 || Gamepad LED #3 + #4
|-
|}

==Peripheral support==
===ps2_emu.self / ps2_gxemu.self===
#Hub
#Mouse
#Keyboard
#EyeToy
#Head Mount Display
#Mic
#Ascii Mic
#Socom USB Headset
#Usb Headset
#Sea Mic Controller
#Force Feedback device
#GT Force
#Momo Force
#Driving Force Pro
#G25/G27
#Momo Racing
#Flight Force
#Force 3D Pro
#Modem
#Guncon2
#Densya de GO! controller type 2
#Densya de GO! Sincansen senyou controller
#Capture Eye
#Flight Stick
#Flight Stick 2
#Pop Egg
#Trance Vibrator
#PSP
#Compact Flight Controller
#Flash Memory
#Buzz!
#Pachi-Slot Controller Kurouto
#Usb Adapter
#Guncon3
#Multi Train Controller
#Para Para Paradise controller

===ps2_netemu.self===
Support for USB devices seems to be limited comparing to other available emulators. Although PS2 side of USB subsystem seems to be fully implemented. IOP emulator in SPU handle USB HW registers addresses and generate interrupt for PPU which later handle RW to mentioned registers in similar fashion to ps2_emu/ps2_gxemu. PS2 side of things can be disabled/enabled using one byte, when disabled USB writes are ignored, and USB reads return 0. Initial state is unknown. Emulator seems to accept HID controllers and use them as DS3.
<br/><br/>
Supported devices:
#BD Remote Control
#PLAYSTATION(R)3 Controller (Vendor ID 0x54C, Product ID 0x268), 
#Motion Controller - Move (Vendor ID 0x54C, Product ID 0x3D5), 
#Navigation Controller  (Vendor ID 0x54C, Product ID 0x42F)
#"guncon3"
<br/>
Unknown: 
#Vendor ID 0xF0D (Hori), Product ID 0x4A 
#Vendor ID 0x54C (Sony), Product ID 0x5AF
<br/>
Few peripherals not listed above work fine or with issues.
#PS3 Dance Dance Revolution Dance Pad - not ps2 accessory, opposite arrows can't be pressed at the same time.
#Pop'N Music controllers - Require PS2 to USB converter. Wrong button mappings can be fixed by remap in config file.
#Retro-Bit Official SEGA Mega Drive USB 6-Button Controller. Mapped for PS3 already and also works with this emulator. Lacks analogue sticks and shoulder buttons.

==BIOS==
===ps2_netemu.self===
Ps2_netemu use integrated PS2 bios included in ps2netemu.elf, not additional file like in ps1_emu. In 4.81 firmware BIOS is located from 0x820A00 to 0x9F09FF (0x820900 to 0x9F08FF in fw4.50). Bios version is Developement v2.20 (22/01/2007).

Notable thing is that ps2_netemu use the same bios as ps2_gxemu, and ps2onps4. ps2_netemu not boot using ps2_emu bios because of failing RDRAM check. 

===Content===
Files included in ps2_netemu/ps2_gxemu bios.

{| class="wikitable" style="font-size:small;"
|-
! File !! Offset in fw4.81 ps2_netemu !! Offset in exported bin !! Description !! File type (exportable)
|-
| RESET || 0x820A00 || 0x00 || Bootstrap code for the EE and IOP. || BIN
|-
| ROMDIR || 0x823180 || 0x2780 || The ROMDIR part of the ROM image, which provides information on the location and name of files contained in the image. || BIN
|-
| EXTINFO || 0x8236C0 || 0x2CC0 || Contains the "EXTINFO" for all files in the ROM image. || BIN
|-
| SBIN || 0x823D30 || 0x3330 || Seems to be the pad controller library for the PS1 monitor. || BIN
|-
| LOGO || 0x82ACD0 || 0xA2D0 || PS1 logo? || BIN
|-
| IOPBTCONF || 0x83F420 || 0x1EA20 || Boot configuration file for the IOP, during the final phase of the IOP reset. If no UDNL module is specified, the IOP will only have a single IOP reset in the reboot process, with the modules listed in IOPBTCONF.  || BIN
|-
| IOPBTCON2 || 0x83F510 || 0x1EB10 || Boot configuration file for the IOP, for the first phase of the IOP reset (before UDNL is loaded). || BIN
|-
| SYSMEM || 0x83F5E0 || 0x1EBE0 || System Memory Manager. || ELF
|-
| LOADCORE || 0x840800 || 0x1FE00 || The core of IOP module loading. Provides the lowest level of IOP module loading functions. Also handles the startup of the IOP. || ELF
|-
| EXCEPMAN || 0x842D80 || 0x22380 || Exception manager. || ELF
|-
| INTRMANP || 0x843960 || 0x22F60 || Interrupt Manager. According to wisi, it is for PS mode. || ELF
|-
| INTRMANI || 0x845370 || 0x24970 || Interrupt Manager. According to wisi, it is for IOP mode. || ELF
|-
| SSBUSC || 0x8471B0 || 0x267B0 || SSBUS Controller library. The SSBUS seems to be the bus that all peripherals get connected to. It seems to have the power to control the mapping of the device registers, as well as access timing. || ELF
|-
| TIMEMANP || 0x847920 || 0x26F20 || Timer Manager (PS mode) || ELF
|-
| TIMEMANI || 0x848500 || 0x27B00 || Timer Manager (IOP mode) || ELF
|-
| DMACMAN || 0x849130 || 0x28730 || DMA Controller Manager. || ELF
|-
| SYSCLIB || 0x84C830 || 0x2BE30 || System C Library. || ELF
|-
| HEAPLIB || 0x84EF90 || 0x2E590 || Memory HEAP LIBrary (i.e. thvpool, thfpool) || ELF
|-
| THREADLIB || 0x84FC90 || 0x2F290 || Multi_Thread_Manager || ELF
|-
| VBLANK || 0x858A20 || 0x38020 || V-Blank management || ELF
|-
| IOMAN || 0x8597B0 || 0x38DB0 || IO Manager || ELF
|-
| MODLOAD || 0x85B720 || 0x3AD20 || IOP module loader. || ELF
|-
| ROMDRV || 0x85DA70 || 0x3D070 || ROM driver. Provides access to the boot ROM (rom0). || ELF
|-
| ADDDRV || 0x85E960 || 0x3DF60 ||  Adds support for the DVD ROM (rom1:), via ROMDRV. || ELF
|-
| STDIO || 0x85EDC0 || 0x3D3C0 || Standard I/O library. || ELF
|-
| SIFMAN || 0x85F9B0 || 0x3EFB0 || SIF manager. || ELF
|-
| SIFINIT || 0x860F50 || 0x40550 || Initializes the SIF. || ELF
|-
| EESYNC || 0x861370 || 0x40970 || For synchronizing with the EE, at the end of IOP resets. EESYNC from DNAS images are evil; they also perform a memory wipe of the region from 0x00084000 to .0x00100000. || ELF
|-
| EENULL || 0x861810 || 0x40E10 ||  The idle thread (id #0) module, in ps2 loaded to 0x00081FC0. || BIN
|-
| PS1ID || 0x861850 || 0x40E50 ||  Only found in newer boot ROMs || BIN
|-
| LIBFI || 0x861860 || 0x40E60 || Not present in the boot ROM of the SCPH-10000 and SCPH-15000. || BIN
|-
| PS1VERJ || 0x861950 || 0x40F50 ||   || BIN
|-
| PS1VERA || 0x861960 || 0x40F60 ||   || BIN
|-
| PS1VERE || 0x861970 || 0x40F70 ||  || BIN
|-
| PS1VERC || 0x861980 || 0x40F80 ||  || BIN
|-
| PS1VERH || 0x861990 || 0x40F90 ||  || BIN
|-
| OSDSYS || 0x8619A0 || 0x40FA0 || The browser || BIN
|-
| - || 0x8619B0 || 0x40FB0 ||   || BIN
|-
| RDRAM || 0x861A00 || 0x41000  || Provides a RDRAM test for the EE at power-on. This is run from RESET. || BIN
|-
| - || 0x864190 || 0x43A30 ||   || BIN
|-
| EELOADCNF || 0x864200 || 0x43D50 || Contains the IOP boot configuration file for EELOAD. || BIN
|-
| SIFCMD || 0x864900 || 0x43F00 || SIF command module. Contains the SIF command and SIF RPC functions. || ELF
|-
| REBOOT || 0x866B40 || 0x46140 || The reboot service. Receives IOP reset packets from the EE, from across the SIF. || ELF
|-
| LOADFILE || 0x867310 || 0x46910 || The RPC server for MODLOAD || ELF
|-
| EECONF || 0x869A70 || 0x49070 || Loads part of the system configuration from the MECHACON EEPROM. Also configures and resets some peripherals, depending on the model version. In slimlines, and possibly on PS3 EECONF will also load the MAC address. || ELF
|-
| - || 0x86A9F0 || 0x49FF0 ||   || BIN
|-
| IOPBOOT || 0x86AA00 || 0x4A000 || IOP bootup program || BIN
|-
| - || 0x86BB60 || 0x4B160 ||   || BIN
|-
| TBIN || 0x86C200 || 0x4B800 ||  The PS1 monitor program. Seems to be the PS1 BIOS. This is started by RESET, when the IOP is in PS1 mode. || BIN
|-
| XSHA1 || 0x87A170 || 0x59770 || sha1 - this only present in PS3. It is used as additional antipiracy check. It seems that it calculate disc main elf checksum and compares it with some database. Config related?|| ELF
|-
| XLOADFILE || 0x87B140 || 0x5A740 || Updated module || ELF
|-
| SIO2MAN || 0x87E1F0 || 0x5D7F0 || SIO2 manager. Provides access to the SIO2 interface. || ELF
|-
| - || 0x87FE20 || 0x5F420 ||   || BIN
|-
| BNNETCNF || 0x881D00 || 0x61300 ||  Network configuration. Used by BB Navigator Network Configuration Library. || BIN
|-
| MCSERV || 0x881D40 || 0x61340 ||  RPC server for MCMAN. || ELF
|-
| - || 0x883A40 || 0x63040 ||   || BIN
|-
| KROMG || 0x884A00 || 0x64000 ||   || BIN
|-
| - || 0x8866C0 || 0x65CC0 ||   || BIN
|-
| KROM || 0x886A30 || 0x66030 || Kanji ROM? Not sure where this is used. || BIN
|-
| - || 0x8A0870 || 0x7FE70 ||   || BIN
|-
| ROMVER || 0x8A0900 || 0x7FF00 || ROM version. || BIN
|-
| - || 0x8A0910 || 0x7FF10 ||   || BIN
|-
| VERSTR || 0x8A0930 || 0x7FF30 || Version string. Probably PS1 ROM will use this because that this string is also present in PlayStation consoles. || BIN
|-
| - || 0x8A0990 || 0x7FF90 ||   || BIN
|-
| ROMGSCRT || 0x8A0A00 || 0x80000 ||   || BIN
|-
| NCDVDMAN || 0x8A3730 || 0x82D30 || It seems to be a heavily stripped-down CDVDMAN module, with no support for some S-command functions like sceCdRI. || ELF
|-
| SECRMAN || 0x8B0170 || 0x8F770 || Security Manager. Signing is NOT done with the one in ROM, but with a special version that comes with the utility discs. Looks like PS3 units have a different SECRMAN module from retail sets, similar to PS2 TOOL one. || ELF
|-
| MCMAN || 0x8B4630 || 0x93C30 || Memory Card Manager. || ELF
|-
| PADMAN || 0x8C3AC0 || 0xA30C0 || Pad manager. || ELF
|-
| CDVDMAN || 0x8CD210 || 0xAC810 || The CD/DVD manager. || ELF
|-
| CDVDFSV || 0x8D55C0 || 0xB4BC0 || The RPC server for CDVDMAN. || ELF
|-
| FILEIO || 0x8DD980 || 0xBCF80 || RPC server for IOMAN. Sony has greatly changed the semantics and design of FILEIO after some point. Connecting an old FILEIO EE RPC client to a newer server will result in a severe IOP crash. || ELF
|-
| CLEARSPU || 0x8DFA80 || 0xBF080 || Seems to clear/reset the SPU, but is known to cause crashes under some conditions. Not sure if it's buggy or not. Only used by the OSDSYS of the SCPH-10000 and SCPH-15000, probably retained for backward-compatibility. || ELF
|-
| UDNL || 0x8E16C0 || 0xC0CC0 || It is responsible for selecting the modules and starting the IOP, during the final phase of the IOP reset where the desired modules are to be loaded into the IOP. || ELF
|-
| IGREETING || 0x8E35C0 || 0xC2BC0 || Displays boot information (i.e. IOP boot type, EBOOTP, IBOOTP, switch positions for DSW602 and the type of DSW602 board installed || ELF
|-
| EELOAD || 0x8E4620 || 0xC3C20 || The EE ELF loader, which is loaded by LoadExecPS2() to 0x00082000 in PS2 for loading ELFs. || BIN
|-
| XCDVDMAN || 0x8F37A0 || 0xD2DA0 || cdvd_driver - Updated module || ELF
|-
| XCDVDFSV || 0x902530 || 0xE1B30 ||  cdvd_ee_driver - Updated module || ELF
|-
| OSDSND || 0x910960 || 0xEFF60 || OSD sound library. This is actually the tentative sound driver, which is called "librspu2" in the Sony SDK. || ELF
|-
| PS2LOGO || 0x93B5B0 || 0x11ABB0 ||  Displays the PlayStation 2 logo from the inserted disc. For newer consoles, if the logo cannot be decrypted properly, it will fall back to the browser. Not actually required to boot games, but the Sony OSDSYS boots PS2 games through this program. || ELF
|-
| XPARAM2 || 0x957F00 || 0x137500 || Store IOP emulation settings/flags || ELF
|-
| OSDSYS || 0x95A400 || 0x139A00 ||  The browser, in ps3 is stripped to parse xparam2. No real browser here. || BIN
|-
| PIOPRP || 0x998280 || 0x177880 ||  Present in the PS3 ps2_(gx/soft/net)emu; contains version 3.1.0 of the IOP software (compared to version 1.3.4 on the root). || BIN
|-
| KERNEL || 0x9DC1E0 || 0x1BB7E0 || The EE kernel || BIN
|}
Description source: https://gist.github.com/uyjulian/25291080f083987d3f3c134f593483c5

===Bios region patch===

Emulator patch loaded bios image to set proper region based on target_id, and string (separated for readability):
 JJjpnJJ  AAengAUU EEengEEE EEengEOA HHengJAG ERengERD CCschJCC HKkorJAG HHtchJAG AAspaAMM
Note: Additional space after first set is intentional and exist also in full string.<br><br>
'''Target id to region pairing:'''
 * JJjpnJJ  for 0x83
 * AAengAUU for 0x84 , others (DECR, etc.)
 * EEengEEE for 0x85 , 0x87 (also forced if game id from SYSTEM.CNF is xxEx_yy.zzz)
 * HHengJAG for 0x86 , 0x8A , 0x8E
 * AAspaAMM for 0x88 , 0x8F
 * EEengEOA for 0x89
 * HHtchJAG for 0x8B
 * ERengERD for 0x8C
 * CCschJCC for 0x8D (unreleased PS3 Chinese model)
 * HKkorJAG unused

Bios is patched using EE memory mapping addresses, so offset in file + 0x1FC00000.
Using HKkorJAG example, addresses below are set to:

 * 0x1FC7FF04 = H (x in "0220xD20121227" string)
 * 0x1FC7FF14 = K
 * 0x1FC7FF15 = k
 * 0x1FC7FF16 = o
 * 0x1FC7FF17 = r
 * 0x1FC7FF52 = J (x in "System ROM Version 5.0 12/27/12 x" string)
 * 0x1FC7FF20 = A
 * 0x1FC7FF90 = G

==Virtual PS2 HDD==
There are 2 different "PS2 game" contents that can be installed in PS3 HDD (CATEGORY's [[PARAM.SFO#CATEGORY_For_HDD_contents | 2P and 2G ]]).
'''2P''' are games released from PSN as "PS2 Classic" in .PKG format, and '''2G''' are a few real "PS2 DVD discs" that can be installed in the PS3 HDD, this installation is managed by the '''PS2_system_data.pkg'''.

This games can be installed in real PS2 (in the internall HDD of a PS2 fat)... later this same installation was used in the [http://en.wikipedia.org/wiki/PSX_(DVR) PSX]... and when implemented in PS3 there was needed to use a '''virtual PS2 HDD''' image file keeping the same format than the original HDD used in PS2.

Game files (extracted from the real PS2 disc) are installed in a '''IMAGE.DAT''' file, this file is a 1:1 "raw copy" of a PS2 HDD.

This '''IMAGE.DAT''' is placed in the "install folder" (inside USRDIR folder) and his size can vary up to 10+GB

There are 2 different installations: the most common is used to store "game expansions" (e.g: used by additional content in SOCOM games)... the other type of installation is a "full install" and it seems the only game that uses it is "Final Fantasy XI" (main game installation when the game boots for first time + game expansions added later when needed in the same '''IMAGE.DAT''')

'''PS2_system_data.pkg''' itself uses an '''IMAGE.DAT''' file (6.43 MB)

The structure of this "virtual PS2 HDD" uses an "APA header" and a "APA MBR" + several "APA partitions", some of them containing "PFS filesystems".

 Error message trying to boot a CATEGORY "2G" game with hand-made SFO's and invalid IMAGE.DAT file:
 '''The game partition for this game cannot be created because the installed game is corrupted.'''
 '''To perform this operation, delete the game, and then reinstall the game using the disc.'''

*Notes
**List of PS2 disc games compatibles with PS3 HDD installation hardcoded in '''dev_flash/vsh/module/[[game_ext_plugin]].sprx'''
**Virtual PS2 HDD support module '''dev_flash/vsh/module/[[libps2hdd]].sprx''' ?

===PS2 System Data (PSN HDD Tool package)===
A direct link to the package can be found in NoPayStation database in DLCs

 Content ID: IP9100-NPIA00001_00-PS2HDDSYSDAT0001
 QA Digest: 2A876715D42678BB7A6E00C030C0121B
 HASH: E1B0DBE46FC44190DC7A140681D8B9D4

http://manuals.playstation.net/document/en/ps3/current/game/hddinstall.html

'''Titles supporting HDD installation'''
* Nobunaga's Ambition Online and Expansion Packs
* Final Fantasy XI (disc1=SCUS97266 disc2=SCUS97269)and Expansion Discs
* SOCOM II: U.S. NAVY SEALs and Related discs included with OPM Issue 87, OPM Issue 88, OPM Issue 89, OPM Issue 90
* SOCOM 3: U.S. NAVY SEALs
* SOCOM: U.S. NAVY SEALs Combined Assault
* Front Mission Online
* Official PlayStation Magazine Issue 87, 88, 89, 90 Discs
([[Talk:Emulation#PS2_HDD | non-official ps2hdd gameslist ]])

===TitleID/DiscID in game_ext_plugin.sprx===

Mainly Final Fantasy 11, Nobunaga Ambition Online, Socom IDs and the required HDD Gigabyte amount for install onto the internal hdd.

Speculation: flags are AND' with 0,1,2 (selected from sys_sm_get_hw_config according to ps2emu hardware flags? 0 = no hw?, 1 = gxemu?, 2=full hw? )

{| class="wikitable" style="font-size:small;"
! Flags !! DiscID !! Alternative? DiscID !! GigaByte !! Title !! 0 = VMC<br>1 = IMAGE.DAT !! Internal Name? !! GigaByte
|-
| rowspan="9" | 0xFFFF || SLPS20200 || rowspan="9" | SLPS25200 || rowspan="9" | 0x15 || rowspan="9" | FINAL FANTASY XI || rowspan="9" | 1 || rowspan="9" | PP.SLPM-25200.MAGIC.APPLICATION || rowspan="9" | 0x15
|-
| SLPM65705
|-
| SLPM65706
|-
| SLPM65953
|-
| SLPM66393
|-
| SLPM66394
|-
| SLPM66893
|-
| SLPM66894
|-
| SLPM55229
|-
|rowspan="4" | 0x0001 || SLPM65197 || rowspan="4" | SLPM65197 || rowspan="4" | 0x07 || rowspan="4" | 信長の野望 Online || rowspan="4" | 1 || rowspan="4" | PP.SLPM-65197.MAGIC.APPLICATION || rowspan="4" | 0x07
|-
| SLPM65783
|-
| SLPM66539
|-
| SLPM66954
|-
|rowspan="5" | 0xFFFF || SCUS97269 || rowspan="5" | SCUS97269 || rowspan="5" | 0x15 || rowspan="5" | FINAL FANTASY XI || rowspan="5" | 1 || rowspan="5" | PP.SCUS-97266.MAGIC.APPLICATION || rowspan="5" | 0x15
|-
| SLUS21070
|-
| SLUS21404
|-
| SLUS21694
|-
| SLUS21704
|-
|rowspan="7" | 0xFFFF || SCUS97275 || rowspan="7" | SCUS97275 || rowspan="7" | 0x02 || rowspan="7" | SOCOM || rowspan="7" | 0 || rowspan="7" | PP.SCUS-97275..SOCOM_II || rowspan="7" | 0x02
|-
| SCUS97474
|-
| SCUS97340
|-
| SCUS97341
|-
| SCUS97342
|-
| SCUS97442
|-
| SCUS97545
|}

In PS2 Emulator same Title IDs are present with following information: 
 SLPS25200 FINAL FANTASY XI          : 0x00000001
 SCUS97269 FINAL FANTASY XI          : 0x00000003
 SLPM65981 Front Mission Online      : 0x00000001
 SLPM65197 Nobunagas Ambition Online : 0x00000002 (return different value in IOP SPEED 0x10000004 read (2 instead of default 3) )

==Emulators management from GameOS==

===Mountpoints===
  dev_ps2disc
  dev_ps2disc1 

===ps2_netemu syscalls ===
Vector at 0xC00 address.
 0x00 -
       0 = return ((unk from 0x1C30/0x1C38 << 56) | thread_number << 48 | ctrl_CT1 (in bit 30) | srr1_EE (in bit 15) | srr1_PS (in bit 14) | srr1_DR (in bit 4))
           Where 0x1C30/0x1C38 is selected depending on current HW thread.
           Thread number is current SW thread
           ctrl_CT1 is lower bit of CT (Current Thread) from PPC Control Register (0 for HW0, 1 for HW1)
           srr1_EE is MSR Enable External Interrupts bit from time when exception occurred (from before syscall was executed)
           srr1_PS is MSR Problem State bit from time when exception occurred (from before syscall was executed)
           srr1_DR is MSR Data Relocate bit from time when exception occurred (from before syscall was executed)
       1 = 0x132 lv1 panic
       2 = 0x133 lv1 panic
       3 = 0x134 lv1 panic
       4 = 0x135 lv1 panic
       else = 0x136 lv1 panic
 0x02 - Destroy init code and perform illegal instructions check. Memzero following addresses:
       CODE: 0x16000 - 0x20B80
       DATA: 0x930F80 - 0x933F80
       UNK:  0x3D016000 - 0x3D020B80
 0x03 - Enable additional code related to VU0/COP2.
       3 = Patch 0x186C10 to NOP
       4 = Patch 0x186C40 to NOP
       anything else = LV1 panic
 0x04 - Unknown. Available for HW0 only. 
 0x05 - External interrupts disable (48 bit in MSR). Returns previous MSR state.
 0x06 - External interrupts enable (48 bit in MSR) if param & 0x8000 is not 0, otherwise disable them.
       This sc is more like restore 48th bit of MSR, but many times emu use it to enable bit without using old state.
       Also, emulator panic LV1 if syscall is called while external interrupts are already enabled.
 0x0A - IPU emulation related syscall
 0x0B - IPU emulation related syscall
 0x0C - Used in PS2 COP0 MTC0/MFC0 r9/r25 (count/perf), decrementer/timing related, return value in r15.
        Config CMD 0x17 disable that syscall for r9 (count) r/w, and alternative path is used. Perf r/w still use it.
 0x0E - PS2 counters/timers related (also used on vsync related functions).
 0x0F - PS2 counters/timers related (also used on vsync related functions).
 0x10 - lv1 panic.
 0x11 - Wrapper for lv1_read_virtual_uart(port_number, buffer, bytes) [HW0 only, only ports 0 and 2 available, else panic]
 0x12 - Wrapper for lv1_storage_send_device_command(dev_id, cmd_id, cmd_block, cmd_size, data_buffer, blocks)
       [HW0 only, Available only for threads: VRC, MECHA, HDD, else panic]
       params are rearranged:
       r3 = cmd_block (0x245E000 is added to this value internally)
       r4 = data_buffer (0x245E000 is added to this value internally)
       r5 = blocks
       dev_id is taken from 0x245D008 and it is 0(HDD) for my dump.
       cmd_id = 0x88 and cmd_size is 8.
 0x13 - Set thread info unknown byte to 1 for respective thread and set unknown byte to 1 in USB thread.
       [HW0 only, else panic. Available only for threads: BL2MAIN and BL2LNK, else do nothing in exception handler]
 0x14 - Same as 0x13 but set all bits to 0 regardless which thread called it.
       [HW0 only, else panic. Available only for threads: BL2MAIN and BL2LNK, else do nothing in exception handler]
 0x1002 - Invalidate gpu hvcalls.
 0x800000XX - HV Syscall where XX is syscall nr.
 else (other syscalls) - jump to 0x12670 (FW4.78 - current) for HW_0
                         jump to 0x12050 (FW4.78 - current) for HW_1 

List of used HV syscalls:

 0x80000000 - [[HV_Syscall_Reference#lv1_allocate_memory]]
 0x80000001 - [[HV_Syscall_Reference#lv1_write_htab_entry]]
 0x80000002 - [[HV_Syscall_Reference#lv1_construct_virtual_address_space]]
 0x80000007 - [[HV_Syscall_Reference#lv1_select_virtual_address_space]]
 0x80000009 - [[HV_Syscall_Reference#lv1_pause]]
 0x8000000F - [[HV_Syscall_Reference#lv1_put_iopte]]
 0x80000012 - [[HV_Syscall_Reference#lv1_construct_event_receive_port]]
 0x8000001A - [[HV_Syscall_Reference#lv1_detect_pending_interrupts]]
 0x8000001B - [[HV_Syscall_Reference#lv1_end_of_interrupt]]
 0x8000001C - [[HV_Syscall_Reference#lv1_connect_irq_plug]]
 0x80000039 - [[HV_Syscall_Reference#lv1_construct_logical_spe]]
 0x8000003D - [[HV_Syscall_Reference#lv1_set_spe_interrupt_mask]]
 0x80000042 - [[HV_Syscall_Reference#lv1_clear_spe_interrupt_status]]
 0x80000043 - [[HV_Syscall_Reference#lv1_get_spe_interrupt_status]]
 0x80000045 - [[HV_Syscall_Reference#lv1_get_logical_ppe_id]]
 0x80000049 - [[HV_Syscall_Reference#lv1_set_interrupt_mask]]
 0x8000004A - [[HV_Syscall_Reference#lv1_get_logical_partition_id]]
 0x8000004E - [[HV_Syscall_Reference#lv1_get_spe_irq_outlet]]
 0x8000005B - [[HV_Syscall_Reference#lv1_get_repository_node_value]]
 0x8000005F - [[HV_Syscall_Reference#lv1_read_htab_entries]]
 0x80000061 - [[HV_Syscall_Reference#lv1_set_vmx_graphics_mode]]
 0x80000062 - [[HV_Syscall_Reference#lv1_set_thread_switch_control_register]]
 0x80000074 - [[HV_Syscall_Reference#lv1_allocate_io_segment]]
 0x80000076 - [[HV_Syscall_Reference#lv1_allocate_ioid]]
 0x80000078 - [[HV_Syscall_Reference#lv1_construct_io_irq_outlet]]
 0x8000007C - [[HV_Syscall_Reference#lv1_undocumented_function_124]]
 0x8000007D - [[HV_Syscall_Reference#lv1_undocumented_function_125]]
 0x8000007E - [[HV_Syscall_Reference#lv1_undocumented_function_126]]
 0x80000088 - [[HV_Syscall_Reference#lv1_undocumented_function_136]]
 0x8000008C - [[HV_Syscall_Reference#lv1_construct_lpm]]
 0x8000008D - [[HV_Syscall_Reference#lv1_destruct_lpm]]
 0x8000008E - [[HV_Syscall_Reference#lv1_start_lpm]]
 0x8000008F - [[HV_Syscall_Reference#lv1_stop_lpm]]
 0x80000090 - [[HV_Syscall_Reference#lv1_copy_lpm_trace_buffer]]
 0x80000091 - [[HV_Syscall_Reference#lv1_add_lpm_event_bookmark]]
 0x80000092 - [[HV_Syscall_Reference#lv1_delete_lpm_event_bookmark]]
 0x80000093 - [[HV_Syscall_Reference#lv1_set_lpm_interrupt_mask]]
 0x80000094 - [[HV_Syscall_Reference#lv1_get_lpm_interrupt_status]]
 0x80000095 - [[HV_Syscall_Reference#lv1_set_lpm_general_control]]
 0x80000096 - [[HV_Syscall_Reference#lv1_set_lpm_interval]]
 0x80000097 - [[HV_Syscall_Reference#lv1_set_lpm_trigger_control]]
 0x80000098 - [[HV_Syscall_Reference#lv1_set_lpm_counter_control]]
 0x80000099 - [[HV_Syscall_Reference#lv1_set_lpm_group_control]]
 0x8000009A - [[HV_Syscall_Reference#lv1_set_lpm_debug_bus_control]]
 0x8000009B - [[HV_Syscall_Reference#lv1_set_lpm_counter]]
 0x8000009C - [[HV_Syscall_Reference#lv1_set_lpm_signal]]
 0x8000009D - [[HV_Syscall_Reference#lv1_set_lpm_spr_trigger]]
 0x800000A3 - [[HV_Syscall_Reference#lv1_write_virtual_uart]]
 0x800000A4 - [[HV_Syscall_Reference#lv1_set_virtual_uart_param]]
 0x800000A5 - [[HV_Syscall_Reference#lv1_get_virtual_uart_param]]
 0x800000A6 - [[HV_Syscall_Reference#lv1_configure_virtual_uart_irq]]
 0x800000AA - [[HV_Syscall_Reference#lv1_open_device]]
 0x800000AB - [[HV_Syscall_Reference#lv1_close_device]]
 0x800000AC - [[HV_Syscall_Reference#lv1_map_device_mmio_region]]
 0x800000AE - [[HV_Syscall_Reference#lv1_allocate_device_dma_region]]
 0x800000AF - [[HV_Syscall_Reference#lv1_free_device_dma_region]]
 0x800000B0 - [[HV_Syscall_Reference#lv1_map_device_dma_region]]
 0x800000B1 - [[HV_Syscall_Reference#lv1_unmap_device_dma_region]]
 0x800000B2 - [[HV_Syscall_Reference#lv1_read_pci_config]]
 0x800000B3 - [[HV_Syscall_Reference#lv1_write_pci_config]]
 0x800000C5 - [[HV_Syscall_Reference#lv1_connect_interrupt_event_receive_port]]
 0x800000CF - [[HV_Syscall_Reference#lv1_enable_logical_spe]]
 0x800000D2 - [[HV_Syscall_Reference#lv1_gpu_open]]
 0x800000D4 - [[HV_Syscall_Reference#lv1_gpu_device_map]]
 0x800000D6 - [[HV_Syscall_Reference#lv1_gpu_memory_allocate]]
 0x800000D9 - [[HV_Syscall_Reference#lv1_gpu_context_allocate]]
 0x800000DD - [[HV_Syscall_Reference#lv1_gpu_context_iomap]]
 0x800000E1 - [[HV_Syscall_Reference#lv1_gpu_context_attribute]]
 0x800000E3 - [[HV_Syscall_Reference#lv1_gpu_context_intr]]
 0x800000E4 - [[HV_Syscall_Reference#lv1_gpu_attribute]]
 0x800000F5 - [[HV_Syscall_Reference#lv1_storage_read]]
 0x800000F6 - [[HV_Syscall_Reference#lv1_storage_write]]
 0x800000F9 - [[HV_Syscall_Reference#lv1_storage_get_async_status]]
 0x800000FF - [[HV_Syscall_Reference#lv1_panic]]

===LPAR / AUTH ID's===
{| border="1" cellspacing="0" cellpadding="5" border="#999" class="wikitable" style="border:1px solid #999; border-collapse: collapse;" 
|- bgcolor="#cccccc"
! Name !! Auth ID !! Self<br />(/dev_flash/ps2emu) !! SM Ability Mask !! Notes
|-
| PS2_LPAR  || 0x1020000003000001 || rowspan="2" | ps2_emu.self || rowspan="2" | 0x201226D || rowspan="2" | 
|-
| *SCE_CELLOS_SYSTEM_MGR_PS2  || 0x107000001D000001
|-
| PS2_GX_LPAR || 0x1020000003000001 || rowspan="2" | ps2_gxemu.self || rowspan="2" | 0x201226D || rowspan="2" |
|-
| *SCE_CELLOS_SYSTEM_MGR_PS2_GX || 0x107000001D000001
|-
| PS2_SW_LPAR || 0x1020000003000001 || rowspan="2" | ps2_softemu.self || rowspan="2" | 0x201226D || rowspan="2" |
|-
| *SCE_CELLOS_SYSTEM_MGR_PS2_SW || 0x107000001D000001
|-
| PS2_NE_LPAR || 0x1020000003000001 || rowspan="2" | ps2_netemu.self || rowspan="2" | 0x412265 || rowspan="2" | Netemu additional SM abilities:
* 0x00400000 = Reboot into netemu LPAR (using opcode 0x8204).
Missing SM abilities when compared to other ps2 emus:
* 0x00000008 = Reboot into PS2/GX/SOFT LPAR (using opcode 0x8202).
* 0x02000000 = Unknown, seems to be unused by current system manager.
|-
| *SCE_CELLOS_SYSTEM_MGR_PS2_NE || 0x107000001D000001
|-
|}
Note: All PS2 emulator lack 0x00000100 ability, thus can't get/set fan speed without LV1 patch.

===Getting compatibility hardware info===
See: [[PS2_Compatibility#Software]]

===ps2bootparam.dat===
A file created at path: dev_hdd0/tmp/game/'''ps2bootparam.dat'''
*See: [[ps2bootparam.dat]]<!--we need this page because we have others like that in wiki-->

===Cobra core===
taken from storage_ext.c
 <pre> patch_ps2emu_entry(ps2emu_type); </pre>
*sets proper ps2_(gx/soft)emu.self path for reboot
*patches ss_storage service 0x5004 disc checks on ss_server3.self inside lv1
  (Change from Parameter li r3, 2 and li r3, 1E (Drive Authentification) to li r3, 0x29 (Reset Drive))
*and the usual either replace read/ioctl for iso etc.

==Game CONFIG==
Some of the PS2 emulator types (such ps2_gxemu.self, ps2netemu.self) are able to load config commands that are applyed "by game ID". The concept of "game patches" is not technically correct because some of the commands does patching functions but others does other things (not patching), and other commands works as switches or sets a value that are enviromental settings for the emulator (not for the game) but because are applyed "by game" should be considered enviromental settings for that specific game, so for simplification purposes you can think in all this data as "game configs"

This "game config" data seems to work in the same way for all the PS2 emulator types but can be located in different places, some are hardcoded inside the emulators itself (inside the .self), and at the time the "PS2 classics" emulator (ps2_netemu.self) was developed this config can be loaded from an external file<!--and there is some more inside some .sprx or inside the ps2 hdd data pkg ?-->

In short, the "game configs" can modify the game image (by patching it) and can be used to configure the virtual PS2 (the emulated machine). And can be loaded from hardcoded data (inside the .self) or from an external file (this feature is supported only by ps2_netemu.self). Maximum CONFIG size for ps2_netemu is 16384 bytes.

===Config Commands===
Below is a brief summary table with basic info about available config commands. <br>
Detailed commands description can be found here: '''[[PS2_Emulation/PS2_Config_Commands|PS2 Config Commands]]'''. <br>
If you want to read some speculation and brainstorming about them, please join the {{talk}} page. <br>

{| class="wikitable" style="font-size:85%; line-height:100%; text-align:center"
|+PS2 Emulators Config Commands Overview
! rowspan="2" | Command Name !! colspan="3" | Command ID !! rowspan="2" style="padding:1px" | Max<br>Usage !! colspan="4" | Command Data
|-
! style="padding:1px" | gxemu !! style="padding:1px" | softemu !! style="padding:1px" | netemu !! Length !! colspan="3" | Params
|-
! {{cellcolors|#c96|#000}} TitleID enforce
| {{NA}} || {{NA}} || 0x00
| 1 || style="text-align:left" | char[10]
| colspan="3" {{cellcolors|#c96|#000|center}} titleid
|-
! {{cellcolors|#555|#fff}} Hook EE memory offset with emu function ID
| 0x00 || 0x00 || 0x01
| 3 ? || style="text-align:left" | 2&nbsp;*&nbsp;uint32_t
| {{cellcolors|#555|#fff|center}} offset || colspan="2" {{cellcolors|#555|#fff|center}} functionid
|-
! {{cellcolors|#fff|#000}} Set something
| 0x01 || 0x01 || 0x02
| 1 || style="text-align:left" | uint32_t
| colspan="3" | ?
|-
! {{cellcolors|#fff|#000}} Skip r5900 CACHE IXIN/IHIN opcodes
| 0x02 || 0x02 || 0x03
| 1 || style="text-align:left" | 0
| colspan="3" {{cellcolors|#ddd|#666|center}} ''Nothing''
|-
! {{cellcolors|#bd5|#000}} Patch something in SP3 EEDMA
| 0x03 || 0x03 || 0x04
| 1 || style="text-align:left" | uint32_t
| colspan="3" | ?
|-
! {{cellcolors|#bd5|#000}} Alternative VIF1 DIRECT/DIRECTHL handler
| 0x04 || 0x04 || {{cellcolors|#eee|#b44|center}} <abbr style="cursor:help; text-decoration:none" title="Not Available">0x05</abbr>
| 1 || style="text-align:left" | 0
| colspan="3" {{cellcolors|#ddd|#666|center}} ''Nothing''
|-
! {{cellcolors|#fff|#000}} Alternative VIF1 OFFSET handler
| 0x05 || 0x05 || 0x06
| 1 || style="text-align:left" | 0
| colspan="3" {{cellcolors|#ddd|#666|center}} ''Nothing''
|-
! {{cellcolors|#c96|#000}} Delay VU1 xgkick by X cycles
| 0x06 || 0x06 || 0x07
| 1 || style="text-align:left" | uint32_t
| colspan="3" {{cellcolors|#c96|#000|center}} <abbr title="2=2cycles, 4=4cycles, 8=8cycles">cycles</abbr>
|-
! {{cellcolors|#c96|#000}} Patch VU1 memory by <abbr title="two bit masks for original and patched data">bitmask</abbr>
| 0x07 || 0x07 || 0x08
| 3 || style="text-align:left" | 8&nbsp;*&nbsp;uint32_t
| colspan="3" {{cellcolors|#c96|#000|center}} <abbr title="read mask, read mask, original opcode, original opcode, write mask, write mask, replace opcode, replace opcode">MASK</abbr>
|-
! {{cellcolors|#9f9|#000}} Patch EE memory 64 bit
| 0x08 || 0x08 || 0x09
| <abbr title="command">1</abbr>→<abbr title="list">32</abbr> || style="text-align:left" | uint32_t&nbsp;+&nbsp;LIST
| {{cellcolors|#9f9|#000|center}} <abbr title="amount of patches in the LIST">count</abbr> || colspan="2" {{cellcolors|#9f9|#000|center}} <abbr title="offset, original opcode, original opcode, replace opcode, replace opcode">LIST</abbr>
|-
! {{cellcolors|#9f9|#000}} Patch EE memory 32 bit
| {{NA}} || {{NA}} || 0x0A
| <abbr title="command">1</abbr>→<abbr title="list">32</abbr> || style="text-align:left" | uint32_t&nbsp;+&nbsp;LIST
| {{cellcolors|#9f9|#000|center}} <abbr title="amount of patches in the LIST">count</abbr> || colspan="2" {{cellcolors|#9f9|#000|center}} <abbr title="offset, original opcode, replace opcode">LIST</abbr>
|-
! {{cellcolors|#9f9|#000}} Patch game disc by sector & offset
| 0x09 || 0x09 || 0x0B
| <abbr title="command">1</abbr>→<abbr title="list">47</abbr> || style="text-align:left" | uint32_t&nbsp;+&nbsp;LIST
| {{cellcolors|#9f9|#000|center}} <abbr title="amount of patches in the LIST">count</abbr> || colspan="2" {{cellcolors|#9f9|#000|center}} <abbr title="sector id, offset, sizeof present opcodes, replace opcodes, original opcodes">LIST</abbr>
|-
! {{cellcolors|#fff|#000}} Set something
| 0x0A || 0x0A || 0x0C
| 1 || style="text-align:left" | 2&nbsp;*&nbsp;uint16_t
| <abbr title="0=?, 1=?, 2=?">unk_mode</abbr> || colspan="2" | <abbr title="min 0x0, max 0xFFFF">unk_range</abbr>
|-
! {{cellcolors|#fff|#000}} Set something
| 0x0B || 0x0B || 0x0D
| 1 || style="text-align:left" | uint32_t
| colspan="3" | <abbr title="0=skip, 1=don't skip (default)">skip</abbr>
|-
! {{cellcolors|#f93|#000}} COP2 and FPU accurate ADD/SUB address
| 0x0C || 0x0C || 0x0E
| 32 || style="text-align:left" | uint32_t
| colspan="3" {{cellcolors|#f93|#000|center}} <abbr title="min 0x100000 ?, max 0x1FFFFFFF ?">offset</abbr>
|-
! {{cellcolors|#f93|#000}} COP2 and FPU accurate ADD/SUB range
| 0x0D || 0x0D || 0x0F
| 32 || style="text-align:left" | 2&nbsp;*&nbsp;uint32_t
| {{cellcolors|#f93|#000|center}} <abbr title="min 0x100000">start&nbsp;offset</abbr> || colspan="2" {{cellcolors|#f93|#000|center}} <abbr title="max 0x1FFFFFFF">end&nbsp;offset</abbr>
|-
! {{cellcolors|#f93|#000}} FPU accurate MUL/DIV range
| 0x0E || 0x0E || 0x10
| 32 || style="text-align:left" | 2&nbsp;*&nbsp;uint32_t
| {{cellcolors|#f93|#000|center}} <abbr title="min 0x100000">start&nbsp;offset</abbr> || colspan="2" {{cellcolors|#f93|#000|center}} <abbr title="max 0x1FFFFFFF">end&nbsp;offset</abbr>
|-
! {{cellcolors|#f93|#000}} VU0 accurate ADD/SUB address
| 0x0F || 0x0F || 0x11
| 32 || style="text-align:left" | uint32_t
| colspan="3" {{cellcolors|#f93|#000|center}} <abbr title="min 0x000, max 0xFF8">offset</abbr>
|-
! {{cellcolors|#588|#fff}} VU0/COP2 multi cmd
| 0x10 || 0x10 || 0x12
| <abbr title="command">1</abbr>→<abbr title="list">63</abbr> || style="text-align:left" | uint32_t&nbsp;+&nbsp;LIST
| {{cellcolors|#588|#fff|center}} flags ? || colspan="2" {{cellcolors|#588|#fff|center}} LIST
|-
! {{cellcolors|#dda|#000}} Memory Card Delay
| 0x11 || 0x11 || 0x13
| 1 || style="text-align:left" | uint64_t
| colspan="3" {{cellcolors|#dda|#000|center}} time ?
|-
! {{cellcolors|#f93|#000}} Alternative VU1 ADD/SUB
| 0x12 || 0x12 || 0x14
| 1 || style="text-align:left" | 0
| colspan="3" {{cellcolors|#ddd|#666|center}} ''Nothing''
|-
! {{cellcolors|#fff|#000}} Patch IOP SPE program
| 0x13 || 0x13 || 0x15
| 1 || style="text-align:left" | uint32_t
| colspan="3" | 2 or higher
|-
! {{cellcolors|#fff|#000}} Unknown
| 0x14? || 0x14? || {{cellcolors|#eee|#b44|center}} <abbr style="cursor:help; text-decoration:none" title="Not Available">0x16</abbr>
| ? || style="text-align:left" | ?
| colspan="3" | ?
|-
! {{cellcolors|#9cf|#000}} Alternative COP0 MTC0/MFC0 Count ($9) handler
| 0x15 || 0x15 || 0x17
| 1 || style="text-align:left" | uint8_t ?
| colspan="3" {{cellcolors|#9cf|#000|center}} <abbr title="0=disabled, 1=enabled">status</abbr>
|-
! {{cellcolors|#fff|#000}} Switch something
| 0x16 || 0x16 || {{cellcolors|#eee|#b44|center}} <abbr style="cursor:help; text-decoration:none" title="Not Available">0x18</abbr>
| 1 || style="text-align:left" | 0
| colspan="3" {{cellcolors|#ddd|#666|center}} ''Nothing''
|-
! {{cellcolors|#ff9|#000}} Force analog controller mode
| {{NA}} || 0x17 || 0x19
| 1 || style="text-align:left" | 0
| colspan="3" {{cellcolors|#ddd|#666|center}} ''Nothing''
|-
! {{cellcolors|#fff|#000}} End fromIPU DMA transfer on BCLR command
| 0x17 || 0x18 || 0x1A
| 1 || style="text-align:left" | 0
| colspan="3" {{cellcolors|#ddd|#666|center}} ''Nothing''
|-
! {{cellcolors|#fff|#000}} IPU IDEC Hack
| 0x18 || 0x19 || 0x1B
| 1 || style="text-align:left" | 0
| colspan="3" {{cellcolors|#ddd|#666|center}} ''Nothing''
|-
! {{cellcolors|#ff9|#000}} Emulate Multitap
| 0x19? || 0x1A? || 0x1C
| 1 || style="text-align:left" | uint8_t
| colspan="3" {{cellcolors|#ff9|#000|center}} port
|-
! {{cellcolors|#ff9|#000}} Set Multitap
| 0x1A || 0x1B || 0x1D
| 1 || style="text-align:left" | uint8_t
| colspan="3" {{cellcolors|#ff9|#000|center}} order
|-
! {{cellcolors|#ff9|#000}} Multitap related
| 0x1B || {{NA}} || 0x1E
| 1 || style="text-align:left" | uint8_t
| colspan="3" | ?
|-
! {{cellcolors|#fff|#000}} Enable VIF0 cmds MSXXX/MPG/FLUSHE timings.
| 0x1C || 0x1C || 0x1F
| 1 || style="text-align:left" | uint32_t
| colspan="3" | Initial cycles to run
|-
! {{cellcolors|#fff|#000}} Set something
| 0x1D || 0x1D || 0x20
| 1 || style="text-align:left" | uint64_t
| colspan="3" | ?
|-
! {{cellcolors|#fff|#000}} Set something
| 0x1E || 0x1E || 0x21
| 1 || style="text-align:left" | uint32_t
| colspan="3" | ?
|-
! {{cellcolors|#fff|#000}} Switch something
| {{NA}} || 0x1F || 0x22
| 1 || style="text-align:left" | 0
| colspan="3" {{cellcolors|#ddd|#666|center}} ''Nothing''
|-
! {{cellcolors|#fff|#000}} Snowblind Engine hack
| 0x1F || 0x20 || 0x23
| 1 || style="text-align:left" | 0
| colspan="3" {{cellcolors|#ddd|#666|center}} ''Nothing''
|-
! {{cellcolors|#ddf|#000}} SIO2 Delay
| 0x20 || 0x21 || 0x24
| 1 || style="text-align:left" | uint64_t
| colspan="3" | ?
|-
! {{cellcolors|#fff|#000}} Switch something
| 0x21 || 0x22 || {{cellcolors|#eee|#b44|center}} <abbr style="cursor:help; text-decoration:none" title="Not Available">0x25</abbr>
| 1 || style="text-align:left" | 0
| colspan="3" {{cellcolors|#ddd|#666|center}} ''Nothing''
|-
! {{cellcolors|#f93|#000}} FPU accurate ADD/SUB range
| 0x22 || 0x23 || 0x26
| 32 || style="text-align:left" | 2&nbsp;*&nbsp;uint32_t
| {{cellcolors|#f93|#000|center}} <abbr title="min 0x100000">start&nbsp;offset</abbr> || colspan="2" {{cellcolors|#f93|#000|center}} <abbr title="max 0x1FFFFFFF">end&nbsp;offset</abbr>
|-
! {{cellcolors|#f93|#000}} COP2 accurate ADD/SUB range
| 0x23 || 0x24 || 0x27
| 32 || style="text-align:left" | 2&nbsp;*&nbsp;uint32_t
| {{cellcolors|#f93|#000|center}} <abbr title="min 0x100000">start&nbsp;offset</abbr> || colspan="2" {{cellcolors|#f93|#000|center}} <abbr title="max 0x1FFFFFFF">end&nbsp;offset</abbr>
|-
! {{cellcolors|#aaf|#000}} Set something <abbr title="PS2 MECHACON related">(CDVD)</abbr>
| 0x24 || 0x25? || 0x28
| 1 || style="text-align:left" | uint32_t
| colspan="3" | ?
|-
! {{cellcolors|#aaf|#000}} CDVD seek timing
| 0x25 || 0x26? || 0x29
| 1 || style="text-align:left" | 2&nbsp;*&nbsp;uint32_t
| ? || colspan="2" | ?
|-
! {{cellcolors|#fff|#000}} Switch something
| 0x26 || 0x27 || 0x2A
| 1 || style="text-align:left" | 0
| colspan="3" {{cellcolors|#ddd|#666|center}} ''Nothing''
|-
! {{cellcolors|#aaf|#000}} Enable CDDA hack <abbr title="PS2 MECHACON related">(CDVD)</abbr>
| 0x27? || 0x28 || 0x2B
| 1 || style="text-align:left" | 0
| colspan="3" {{cellcolors|#ddd|#666|center}} ''Nothing''
|-
! {{cellcolors|#fff|#000}} Set something
| 0x28 || 0x29 || 0x2C
| 1 || style="text-align:left" | uint32_t
| colspan="3" | ?
|-
! {{cellcolors|#fff|#000}} Switch something
| 0x29? || 0x2A || {{cellcolors|#eee|#b44|center}} <abbr style="cursor:help; text-decoration:none" title="Not Available">0x2D</abbr>
| 1 || style="text-align:left" | 0
| colspan="3" {{cellcolors|#ddd|#666|center}} ''Nothing''
|-
! {{cellcolors|#fff|#000}} Set something
| 0x2A || 0x2B || 0x2E
| 1 || style="text-align:left" | uint32_t
| colspan="3" | ?
|-
! {{cellcolors|#fff|#000}} SPU2 multi cmd.
| 0x2B || {{NA}} || 0x2F
| 1 || style="text-align:left" | uint32_t
| colspan="3" | ?
|-
! {{cellcolors|#eee|#b44|left}} Reserved
| {{cellcolors|#eee|#b44|center}} <abbr style="cursor:help; text-decoration:none" title="Not Available">N&thinsp;/&thinsp;A<br>N&thinsp;/&thinsp;A<br>N&thinsp;/&thinsp;A<br>N&thinsp;/&thinsp;A<br>N&thinsp;/&thinsp;A</abbr> || {{cellcolors|#eee|#b44|center}} <abbr style="cursor:help; text-decoration:none" title="Not Available">N&thinsp;/&thinsp;A<br>N&thinsp;/&thinsp;A<br>N&thinsp;/&thinsp;A<br>N&thinsp;/&thinsp;A<br>N&thinsp;/&thinsp;A</abbr> || {{cellcolors|#eee|#b44|center}} <abbr style="cursor:help; text-decoration:none" title="Not Available">0x30<br>0x31<br>0x32<br>0x33<br>0x34</abbr>
| 0 || style="text-align:left" | 0
| colspan="3" {{cellcolors|#ddd|#666|center}} ''Nothing''
|-
! {{cellcolors|#f66|#000}} Enable Force Flip Field
| {{NA}} || {{NA}} || 0x35
| 1 || style="text-align:left" | 0
| colspan="3" {{cellcolors|#ddd|#666|center}} ''Nothing''
|-
! {{cellcolors|#eee|#b44|left}} Reserved
| {{cellcolors|#eee|#b44|center}} <abbr style="cursor:help; text-decoration:none" title="Not Available">N&thinsp;/&thinsp;A<br>N&thinsp;/&thinsp;A<br>N&thinsp;/&thinsp;A<br>N&thinsp;/&thinsp;A<br>N&thinsp;/&thinsp;A<br>N&thinsp;/&thinsp;A<br>N&thinsp;/&thinsp;A</abbr> || {{cellcolors|#eee|#b44|center}} <abbr style="cursor:help; text-decoration:none" title="Not Available">N&thinsp;/&thinsp;A<br>N&thinsp;/&thinsp;A<br>N&thinsp;/&thinsp;A<br>N&thinsp;/&thinsp;A<br>N&thinsp;/&thinsp;A<br>N&thinsp;/&thinsp;A<br>N&thinsp;/&thinsp;A</abbr> || {{cellcolors|#eee|#b44|center}} <abbr style="cursor:help; text-decoration:none" title="Not Available">0x36<br>0x37<br>0x38<br>0x39<br>0x3A<br>0x3B<br>0x3C</abbr>
| 0 || style="text-align:left" | 0
| colspan="3" {{cellcolors|#ddd|#666|center}} ''Nothing''
|-
! {{cellcolors|#c96|#000}} Config revision
| {{NA}} || {{NA}} || 0x3D
| 1 || style="text-align:left" | uint32_t
| colspan="3" {{cellcolors|#c96|#000|center}} revision
|-
! {{cellcolors|#fff|#000}} Switch something
| {{NA}} || {{NA}} || 0x3E
| 1 || style="text-align:left" | 0
| colspan="3" {{cellcolors|#ddd|#666|center}} ''Nothing''
|-
! {{cellcolors|#fff|#000}} Set something
| {{NA}} || {{NA}} || 0x3F
| 1 || style="text-align:left" | uint32_t
| colspan="3" | ?
|-
! {{cellcolors|#fff|#000}} Switch something
| {{NA}} || {{NA}} || 0x40
| 1 || style="text-align:left" | 0
| colspan="3" {{cellcolors|#ddd|#666|center}} ''Nothing''
|-
! {{cellcolors|#fff|#000}} Switch something
| {{NA}} || {{NA}} || 0x41
| 1 || style="text-align:left" | 0
| colspan="3" {{cellcolors|#ddd|#666|center}} ''Nothing''
|-
! {{cellcolors|#9f9|#000}} Patch EE memory by overlay
| {{NA}} || {{NA}} || 0x42
| <abbr title="command">1</abbr>→<abbr title="list">1023</abbr> || style="text-align:left" | 2&nbsp;*&nbsp;uint32_t&nbsp;+&nbsp;LIST
| {{cellcolors|#9f9|#000|center}} offset || {{cellcolors|#9f9|#000|center}} count || {{cellcolors|#9f9|#000|center}} <abbr title="opcode,opcode,opcode, etc...">LIST</abbr>
|-
! {{cellcolors|#fff|#000}} Set something
| {{NA}} || {{NA}} || 0x43
| 1 || style="text-align:left" | uint32_t
| colspan="3" | ?
|-
! {{cellcolors|#fcc|#000}} Disable smoothing filter
| {{NA}} || {{NA}} || 0x44
| 1 || style="text-align:left" | 0
| colspan="3" {{cellcolors|#ddd|#666|center}} ''Nothing''
|-
! {{cellcolors|#fff|#000}} Switch something
| {{NA}} || {{NA}} || 0x45
| 1 || style="text-align:left" | 0
| colspan="3" {{cellcolors|#ddd|#666|center}} ''Nothing''
|-
! {{cellcolors|#f66|#000}} Enable L2H Improvement
| {{NA}} || {{NA}} || 0x46
| 1 || style="text-align:left" | 0
| colspan="3" {{cellcolors|#ddd|#666|center}} ''Nothing''
|-
! {{cellcolors|#f66|#000}} Enable XOR CSR
| {{NA}} || {{NA}} || 0x47
| 1 || style="text-align:left" | 0
| colspan="3" {{cellcolors|#ddd|#666|center}} ''Nothing''
|-
! {{cellcolors|#f66|#000}} Set VSYNC IPU & Delay
| {{NA}} || {{NA}} || 0x48
| 1 || style="text-align:left" | 2&nbsp;*&nbsp;uint32_t
| {{cellcolors|#f66|#000|center}} <abbr title="1=No IPU, 2=IPU, 3=Anytime">ipu</abbr> || colspan="2" {{cellcolors|#f66|#000|center}} <abbr title="20000=Conservative, 100000=Normal, 250000=Agressive, Any other">delay</abbr>
|-
! {{cellcolors|#fff|#000}} Switch something
| {{NA}} || {{NA}} || 0x49
| 1 || style="text-align:left" | 0
| colspan="3" {{cellcolors|#ddd|#666|center}} ''Nothing''
|-
! {{cellcolors|#fff|#000}} Switch something
| {{NA}} || {{NA}} || 0x4A
| 1 || style="text-align:left" | 0
| colspan="3" {{cellcolors|#ddd|#666|center}} ''Nothing''
|-
! {{cellcolors|#fff|#000}} Set something
| {{NA}} || {{NA}} || 0x4B
| 1 || style="text-align:left" | 2&nbsp;*&nbsp;uint32_t
| ? || colspan="2" | ?
|-
! {{cellcolors|#fff|#000}} Set something
| {{NA}} || {{NA}} || 0x4C
| 1 || style="text-align:left" | 2&nbsp;*&nbsp;uint32_t
| ? || colspan="2" | ?
|-
! {{cellcolors|#fff|#000}} Set something
| {{NA}} || {{NA}} || 0x4D
| 1 || style="text-align:left" | uint32_t
| colspan="3" | ?
|-
! {{cellcolors|#fff|#000}} Unknown
| {{NA}} || {{NA}} || 0x4E
| 1 || style="text-align:left" | ?
| colspan="3" | ?
|-
! {{cellcolors|#fff|#000}} Unknown
| {{NA}} || {{NA}} || 0x4F
| 1 || style="text-align:left" | ?
| colspan="3" | ?
|-
! {{cellcolors|#ff9|#000}} Enable pressure sensitive controls
| {{NA}} || {{NA}} || 0x50
| 1 || style="text-align:left" | 0
| colspan="3" {{cellcolors|#ddd|#666|center}} ''Nothing''
|}

===Config file examples (for netemu)===

====Official PS2 Classic====
See: [[PS2 Official Configs]]

====Official GXEMU/SOFTEMU extracted====
{| class="wikitable sortable" style="font-size:small; width: 100%;"
|-
! style="width: 80px;" | ID !! style="width:200px;" | Title !! style="width: 350px;" | Config Data !! Revision !! Notes
|-
| ALL || .hack series || 
 3D 00 00 00 89 3D 00 00 08 00 00 00 FF FF FF FF
 FF FF FF FF 8D 94 11 01 FC 0E 00 80 FF FF FF FF
 FF FF FF FF 8D 94 11 01 03 02 03 10 08 00 00 00
 FF FF FF FF FF FF FF FF 40 A7 E0 01 3C 03 00 80
 FF FF FF FF FF FF FF FF 40 A7 E0 01 FC 1E 00 80
 00 00 00 00
                     Alternative
 3D 00 00 00 89 3D 00 00 07 00 00 00 08 00 00 00
 00 00 00 00
|| 15753 (3.73+) || Freeze fix. Alternative config found in the GX NTSC configs of the .hack//G.U.
|-
| SLUS-21268 || 24: The Game ||
 3D 00 00 00 65 3D 00 00 12 00 00 00 0D 00 00 00
 00 00 00 04 00 00 00 00 02 00 03 00 E7 00 00 00
 45 AD 6E AA EF 02 00 00 02 00 03 00 F3 00 00 00
 E4 A0 6E 47 FA 02 00 00 03 00 02 00 B0 55 41 10
 68 56 41 10 00 00 00 00
|| 15717 (3.73+) || Fixes loading screen freezing caused by VU looping at ibne vi05, vi00. Problem occur when EE try to run microprogram by vcallmsr CMSAR0, right after qmtc2 a0, vf9 something seems to cause situation where data for vf9 can't be fetched that moment, and vcallmsr need to wait for it, next instruction should clear loop state on VU side by setting vi05 to 0. But that never happen because vcallmsr wait for execution. This made VU1 looping all the time at the same address, VU0 to not start, and permanent EE stall. 
 0x3D => 0x3D65 (15717)
 0x12 => 0x0D, 
   00 00 00 04 
   00 00 00 00  
   02 00>'''03 00'''< Count, Type 2
   E7 00 00 00 < Value of TPC register	
   45 AD 6E AA < CRC (unknown)	
   EF 02 00 00  
   02 00>'''03 00'''< Count, Type 2
   F3 00 00 00 	< Value of TPC register
   E4 A0 6E 47 	< CRC (unknown)
   FA 02 00 00  
   03 00>'''02 00'''< Count, Type 3
   B0 55 41 10 	-> 0x4155B0 < EE memory offset with problematic stall
   68 56 41 10	-> 0x415668 < EE memory offset with problematic stall
|-
| ALL || Castlevania: Curse of Darkness ||
 3D 00 00 00 89 3D 00 00 08 00 00 00 00 00 00 80
 FF FF FF FF 00 00 00 80 00 80 FF FF 00 00 00 80
 FF FF FF FF 00 00 00 80 01 80 FF FF 00 00 00 00
|| 15753 (3.73+) || Fixes Graphic issues with Spiky Polygons, by patching VU memory directly. Replace 0xFF800000 (-qnan) with FF800001 (-qnan). Seems PS3 SPE miss calculation by really small amount, but is enough to break graphic. (PCSX2 due to IEEE754 miss it a lot).
|-
| SLUS-21574 || Dawn of Mana || 
 3D 00 00 00 65 3D 00 00 12 00 00 00 04 00 00 00
 00 00 00 00 00 00 00 00 01 00 01 00 0C 00 DF 0D
 00 00 00 00
|| 15717 (3.70+) ||
fix? (untested)
 0x3D => 0x3D65 (15717)
 0x12 => 0x04, 
  00 00 00 00 
  00 00 00 00  
  01 00>01 00< Count, Type 1
  0C 00 DF 0D
|-
| SLUS-20758 || Growlanser Generations (Disc 1) || 
 3D 00 00 00 57 44 00 00 0B 00 00 00 01 00 00 00
 F8 03 00 00 7C 05 00 00 04 00 00 00 00 00 00 00
 10 40 FF FC 2E 00 00 00 72 01 00 00 00 00 00 00
 53 4C 55 53 2D 32 30 37 35 38
|| 17495 (4.78+) ||
Fixes the freeze at the start of random battles.
 0x3D => 0x4457 (17495)
 0x0B => 1,
  0x3F8 (sector),
  0x57C (offset -> 0x247C14 in a RAW/2352 image),
  0x04 (bytes to replace)
   Replaced opcodes:
   0x00000000 nop
   Original opcodes:
   0x1040FFFC beqz v0,0x267CF0
 0x2E => 172
|-
| SLES-53585 || Marvel Nemesis: Rise of the Imperfects ||
 3D 00 00 00 89 3D 00 00 12 00 00 00 0D 00 00 00
 00 F0 FF 04 00 00 00 00 02 00 03 00 11 00 00 00
 7A 7F CE 5D 14 02 00 00 03 00 06 00 EC 8F 55 10
 C0 45 55 10 28 49 55 10 40 4A 55 10 60 7F 55 10
 C0 8F 55 10 00 00 00 00 53 4C 45 53 2D 35 33 35
 38 35
|| 15753 (3.73+)  || Fixes loading/crash, game still unplayable due to other issues.
 0x3D => 0x3D89 (15753)
 0x12 => 0x0D
  00 F0 FF 04
  00 00 00 00
  02 00 >'''03 00'''< Count, Type 2
   11 00 00 00
   7A 7F CE 5D
   14 02 00 00
  03 00 >'''06 00'''< Count, Type 3
   EC 8F 55 10 0x558fec (EE memory offset with problematic stall)
   C0 45 55 10 0x5545c0 (EE memory offset with problematic stall)
   28 49 55 10 0x554928 (EE memory offset with problematic stall)
   40 4A 55 10 0x554a40 (EE memory offset with problematic stall)
   60 7F 55 10 0x557f60 (EE memory offset with problematic stall)
   C0 8F 55 10 0x558fc0 (EE memory offset with problematic stall)

|-	
| SLUS-21281 || Marvel Nemesis: Rise of the Imperfects ||	
 3D 00 00 00 89 3D 00 00 12 00 00 00 09 00 00 00
 00 F0 FF 04 00 00 00 00 02 00 03 00 11 00 00 00
 7A 7F CE 5D 14 02 00 00 03 00 02 00 88 76 55 10
 08 87 55 10 00 00 00 00 53 4C 55 53 2D 32 31 32
 38 31
|| 15753 (3.73+)  || Fixes loading/crash, game still unplayable due to other issues.	
 0x3D => 0x3D89 (15753)	
 0x12 => 0x09	
  00 F0 FF 04	
  00 00 00 00	
  02 00 >'''03 00'''< Count, Type 2	
   11 00 00 00	
   7A 7F CE 5D	
   14 02 00 00	
  03 00 >'''02 00'''< Count, Type 3	
   88 76 55 10 0x557688 (EE memory offset with problematic stall)
   08 87 55 10 0x558708 (EE memory offset with problematic stall)
|-
| ALL || Superman Returns ||
 3D 00 00 00 89 3D 00 00 08 00 00 00 00 00 00 00
 00 00 00 FE 00 00 00 00 00 00 00 2C 00 00 00 00
 00 00 00 FE 00 00 00 00 00 00 00 10 00 00 00 00
|| 15753 (3.73+) || Fixes graphical issues. 
|}
==== Custom Configs ====
See: [[PS2 Custom Configs]]

===Config data examples (hardcoded)===
====Inside ps2_emu.self====
Embedded patches are based on Checksum/Hash of title. ps2_emu is only emulator version where patches are described inside self file in ascii. Known patch types described in ascii are: Patch data, new SPU2 params, and Setting mecha HACK to show GODZCD as GODZCDDA.

{| class="wikitable sortable"
! PS2 Title !! Hash !! Game !! Patch Type !! Data
|-
| SCUS_971.46|| 0x6B1ADE00D||Disney's Treasure Planet || Patch data - Fixes black screen at start, it apply to STREAM_D.IRX file in IOP folder. || 0x147C (sector) , 0x580 (offset) (- 0xC on disc) 
 Replace opcodes
 00 01 01 3C	lui	at,0x0100
 80 BF 03 3C 	lui	v1,0xBF80
 C8 10 63 8C	lw	v1,0x10C8(v1)
 24 18 61 00	and	v1,at
 FB FF 61 10	beq	v1,at, -0x10
 00 00 00 00 	nop	
 
 Original opcodes
 FF FF 01 24	li	at,-0x1
 04 00 61 14 	bne	at,v1, +0x14
 00 80 01 3C	lui	at,0x8000
 02 00 41 14	bne	at,v0, +0x0C
 00 00 00 00	nop	
 0D 00 06 00 	break   
|-
|SLUS_201.74 ||0x23D92589C5|| Rumble Racing || Patch data - fixes black screen after Playstation 2 logo. Patch apply to AUDIO.IRX file in MODULES folder || 0x3AEDA (sector), 0x120 (offset)
 Replace opcodes
 06 00 80 14	bnez	a0, +0x1C
 21 20 43 00 	addu	a0,v0,v1
 21 10 A0 00	move	v0,a1
 02 00 A0 14 	bnez	a1, +0x0C
 00 00 00 00	nop	
 01 00 05 24 	li	a1,0x1
 EB FF 40 10	beqz	v0, -0x50
 04 00 84 24 	addiu	a0,0x4
 FC FF 90 24	addiu	s0,a0,-0x4
 	
 Original opcodes
 07 00 80 14	bnez	a0, +0x20
 21 80 43 00 	addu	s0,v0,v1
 21 10 A0 00	move	v0,a1
 02 00 A0 14	bnez	a1, +0x0C
 00 00 00 00	nop	
 01 00 05 24 	li	a1,0x1
 FC FF 40 10	beqz	v0, -0x0C
 00 00 00 00	nop	
 04 00 04 26	addiu	a0,s0,0x4
 	
|-
|SLUS_211.96||0x24D92589D5|| Indigo Prophecy || new SPU2 params || 1
|-
|SLPM_661.93||0x608634992D|| <abbr title="https://www.gamefaqs.com/ps2/544598-indigo-prophecy/data">Fahrenheit (NTSC-J)</abbr> || new SPU2 params || 1
|-
|SLUS_212.96||0x5CA15DF14D|| Dance Factory ||Setting mecha HACK to show GODZCD as GODZCDDA ||
|}

====Inside ps2_gxemu.self/ps2_softemu.self====
There are hundreds of configs hidden in ps2_gxemu, and ps2_softemu self files. Internal config structure is basing on custom hash based on Title ID, internal memory offset pointing to place where true patch instruction is, and count of used commands. When disc/iso is started emulator search for configs, and if config for selected ID exist, then emulator apply it by itself. Is not perfect way of applying patches, because some games use the same ID, but different content. Good example here is Star Wars Battlefront II SLUS-21240, where some versions of game can refuse to work because it apply bad patch.

{| class="wikitable sortable"
! PS2 Title !! Hash !! Game !! Patch Type !! Data
|-
|  ||  ||  ||   ||  
|}

==Known Emulation Bugs==
This list known bugs inside emulator code that make emulation inaccurate. Since those are only EE side bugs for now, ps2_gxemu/ps2_netemu/ps_softemu share the same issues. 
{| class="wikitable sortable"
! Bug !! Description !! Known Affected Games
|-
| Missing Emotion Engine Data Cache emulation || Emulating that is literally not possible without making games run at 3 fps. Fixed by patches to game image, or EE code. Instruction Cache (not Data) seems to be implemented, at least partially. || Ice Age 2, DOA2: Extreme, Nascar 2009.
|-
| Branch delay slot violation not supported on EE || Some games have Branch instruction inside Branch delay slots, this is not emulated correctly on EE (VU have proper emulation of that). This is patched in configs by rearangging MIPS code. || WRC 3,4,Rally Evolved, one of Action Replay discs.  
|-
| Unmapped write only EE memory (confirmed only for SIF) || Reads/Writes to 0x2000000+ shouldn't throw bus error on dma transfers. Write should be performed as successful, memory should stay unchanged. Reads should return 0. || Games developed by In Utero, while creating initial save file, send DMA where address is EE stack pointer. At the time of transfer start $sp is too high, and requested transfer size make MADR overflow above 0x2000000 at some point. This is game bug, and happen also on real hardware. Fixed by config.
|-
| VIF bugs || There is no correct timing, and queuing for some VIF commands like MSCAL. || Snowblind Engine games. Probably more. 
|-
| XGKick is instant || Some games expect to XGKick happen few cycles in future, on PS3 is done instant. Fixed by config 0x07 which delay XGKick by selected value || WRC series, Wakeboarding Unleashed, TriAce games, World of Outlaws - Sprint Cars, Ty - The Tazmanian Tiger, dot Hack - G.U. series, and more
|-
| COP2 instructions are instant || Some games rely on fact that COP2 operations can take some time, on PS3 emulators they are done instantly due to lack of correctly emulated pipeline Patched by rearranging mips code || FFX, FFX-2, Ghost in The Shell SAC, Ace Combat series, Sprint Cars 1/2, Black, Run Like Hell, Everblue 2, Dragon Quest - Shounen Yangus no Fushigi na Daibouken, and many more
|-
| VU0 is not running in sync with EE core || VU0 is running program "at once", which mean that VU0 run until it hits E bit. From EE perspective it looks like whole VU0 program run in 1 cycle. Games that expect VU0 registers to be changed from EE side while VU0 is running are broken due to that. Partially resolved using 0x12 command with 2/3 subcommands, or by code rearranging.|| 24 The Game, ATV Quad Power Racing 2, Twisted Metal Head-On, Primal, Ghosthunter, Rayman Arena, Rayman 3, Largo winch. All games using M-bit. 
|-
| M-Bit not supported || Emulator ignore VU0 M-Bit, that cause issues for games that need it to work correctly. This is done because there is no way to sync correctly running VU0 without sync with EE. Partially resolved on emu using 0x12 command with 2/3 subcommands, or direct VU0/MIPS code rearranging. || Totally Spies! Totally Party, Mike Tyson Heavyweight Boxing, My Street, Crash Twinsanity, Marvel Nemesis, Panzer Elite Action - Fields of Glory, TriAce games (speed optimizations only), Super Monkey Ball Adventure, most Eko Software games, and many more.
|-
| T-Bit not supported on VU0 || Emulator ignore VU0 T-Bit, that cause issues for games that need it to work. Note: T-Bit is correctly handled for VU1. || Spiderman 3 set T-Bit, then do cfc2 from TPC (address where VU0 stopped). Since T-Bit is ignored, TPC is wrong. Value is later copied to CMSAR0, and program continue at wrong address. Well that's what should happen, but T-Bit also not signalize correct bit in VPU-STAT. Causing another issue, also in Spiderman 3. 
|-
| Emulator do not update correct flag instances for COP2 while ending VU0 program on Ebit || This cause few games to read bad flag status (not status flag!) on COP2. This is resolved on emu by forcing update of MAC flag on every STATUS flag read (by config 0x12), this cause slowdowns creating a lot of unnecessary operations. || Driving Emotion Type-S, State of Emergency 2, The Getaway Black Monday.
|-
| Not updated status flag when VDIV/VSQRT/VRSQRT is done on COP2 || Potential bad flag state can cause a lot of issues that are not related on first sight || Yanya Caballista (already patched by custom config)
|-
| In corner cases emu select wrong block flags pipeline state (both VU0/EEonBE and VU1/VRC affected). || This can cause various issues, mostly SPS, missing graphic, specific slowdowns, etc. Issue seems to occur when branch/jump delay slot have opcode important for flags calculation. Theory is that cached microprogram don't include modified flags state from delay slot instruction. So when already recompiled program is fetched from pool, it will miss one cycle in fmac flags pipeline. This can be crucial in games that rely on it. || Tales of Legendia and Klonoa 2 set sticky flag bits to 0 and branch with sub.xyzw in delay slot (expecting that sub change status flag), Tamsoft engine games set sticky bits to 0 in branch delay slot, this was most ridiculous bug, because problematic branch was pointing to next opcode after delay slot, removing branch was enough. True Crime: NY is only known game where VU0 is affected by this bug. more..
|-
| CTC2 opcode write whole value to R register, while only 23 bits are writable. Rest is hardcoded to 0x3F800000. || Can cause many weird issues like broken physics, broken graphics. PCSX2 was also affected [[https://github.com/PCSX2/pcsx2/pull/6611 more]]. || The one game that is known to be affected, and is already patched, is Musashi: Samurai Legend.
|-
| CFC2 from R register should return only 23 lower bits. || CFC2 from R on real PS2 return only lower 23 bits. Originally found out by PCSX2 team  [[https://github.com/PCSX2/pcsx2/pull/8409 more]] and later confirmed to affect ps2_netemu in emu assembly. || There is only one game that is known to be affected, Onimusha Dawn of Dreams.
|-
| Missing floating point result overflow/underflow detection (U/O flags not set) || Since this affect all units (FPU/VU), many issues can occur. But in reality it seems to not affect any games. While this is easier to implement than on x86 system (full floats range, compared to ieee754), there is no way to do that by hardware way. Because SPU add/sub don't set those flags on single precision operations, and vmx have them disabled in spu compatibility mode. || Superman Returns.
|-
| DMA between SPR and VU1 memory cause emulator panic. || Currently cause is unknown. It seems that functions responsible for transfer don't check that VU is running. Manual state that dma can be performed only when VU is not active, and pcsx2 wait until VU end. Games affected in emulators on ps3 display this warning in pcsx2 if mtvu is enabled: "MTVU: SPR Accessing VU1 Memory". Affected games are fixed by rearranging code to do lq/sq loop instead of DMA. || Summoner 2 (SPRfrom to VU1 data mem), Kaena (SPRto from VU1 data mem).
|-
| IOP SIF0/1 DMA IRQs can be disabled (masked), which is not true on real hardware. || IOP interrupts 0x2A and 0x2B should always trigger. Fixed by patches to IOP code. Ps2_emu seems to be unfacted, probably handled on real hw in CXD9208GP. || Knockout Kings 2001, DOA2: Hardcore.
|}
===Software emulation bugs===
Related to the GS emulation issues mostly. Apply to the ps2_netemu especially.
{| class="wikitable sortable"
! Bug !! Description !! Known Affected Games
|-
| No mipmapping support || Emulator does ignore the mipmap layers, probably for performance reasons. It is processing only the level 0 texture base pointer specified in the TEX0 register. There are games writing garbage data into that memory area, when the mipmap level is different than zero. As a result, a garbled texture is shown instead of a correct one. || Ace Combat series, Ape Escape 2, EA Sports F1 series, Harry Potter series, ICO (psuedo volumetric rays), Jak and Daxter series, Nickelodeon Barnyard and Nicktoons Unite (very strange implementation), Ratchet and Clank series and more.
|-
| SCANMSK register ignored || Emulator does ignore the SCANMSK setting responsible for restricting the drawing primitives on the odd or even lines. It is used as a fake transparency effect in some games by merging the two display circuits. || Metal Gear Solid series (water and reflection effects), Gran Turismo series (ghost cars), Raw Danger! (depth of field effect)
|-
| Missing PCRTC feedback write support || PCRTC feature that writes back the image to the frame buffer is not supported or broken. Additional RGB to YCbCr conversion could be performed there. || Xenosaga Episode I: Der Wille zur Macht (black and white cut scenes)
|-
|}

==TitleID/DiscID in ps2_netemu.self==
There are 193 titleIDs listed inside ps2_netemu.self. More precisely, into XPARAM2.ELF file of PS2 Bios included in ps2_netemu.self. XPARAM2.ELF is called by OSDSYS, then ID check is performed. If title ID match to one of included in the table, different IOP emulation settings are applied.
There are internal flags related to every title ID included inside file, still unknown what they do. Also some arguments, in plain text. File in real ps2 is introduced in SCPH-750XX models so exactly when DECKARD Power PC chip exchanged original IOP chip. This can explain why it is still in PS3 netemu bios. Because PS3 it is ppc that can need the same/similar flags.

Original PS2 bios include similar list file called XPARAM.ELF, but Title IDs there are not the same, although some of them exist on both lists.

{| class="wikitable sortable" || 
|- 
! Command !! Name
|-
| 0x00 || TITLE_MASK 
|-
| 0x01 || SIO2_MASK
|-
| 0x02 || DEV9_MASK
|-
| 0x03 || USB_MASK
|-
| 0x04 || SIF_DMA_SYNC
|-
| 0x05 || SIF_DMA_LOAD
|-
| 0x06 || DMAC_CH10_INT_DELAY
|-
| 0x07 || MECHA_RECOGTIME
|-
| 0x08 || CPU_DELAY
|-
| 0x09 || DEV5_INT_SPEED
|-
| 0x0A || CDVD_READ_DELAY
|-
| 0x0B || SPU2_BEHAVIOR
|-
|}

{| class="wikitable sortable" || 
|- 
! ID !! Title !! Command !! Value !! Remarks 
|- 
|PBPX_952.01 || DVD Utility Disc Version 1.00                                        || 0x00 || 0xA0000000 || TITLE_MASK, 0xA0000000 = Blacklist, boot after removing flag
|-
|PBPX_952.02 || DVD Utility Disc Version 1.01                                        || 0x00 || 0xA0000000 || TITLE_MASK, 0xA0000000 = Blacklist, boot after removing flag
|-
|PBPX_952.03 || DVD Utility Disc Version 1.01                                        || 0x00 || 0xA0000000 || TITLE_MASK, 0xA0000000 = Blacklist, boot after removing flag
|-
|PBPX_952.06 || DVD Player (Version 2.01)                                            || 0x00 || 0xA0000000 || TITLE_MASK, 0xA0000000 = Blacklist, boot after removing flag
|-
|PBPX_952.07 || DVD Player (Version 2.10)                                            || 0x00 || 0xA0000000 || TITLE_MASK, 0xA0000000 = Blacklist, boot after removing flag
|-
|PBPX_952.08 || DVD Player (Version 2.10)                                            || 0x00 || 0xA0000000 || TITLE_MASK, 0xA0000000 = Blacklist, boot after removing flag
|-
|PBPX_952.09 || DVD Player (Version 2.10)                                            || 0x00 || 0xA0000000 || TITLE_MASK, 0xA0000000 = Blacklist, boot after removing flag
|-
|PBPX_952.10 || DVD Utility Disc Version 2.10                                        || 0x00 || 0xA0000000 || TITLE_MASK, 0xA0000000 = Blacklist, boot after removing flag
|-
|PBPX_952.11 || DVD Utility Disc Version 1.00                                        || 0x00 || 0xA0000000 || TITLE_MASK, 0xA0000000 = Blacklist, boot after removing flag
|-
|PBPX_952.21 || DVD Player (Version 2.12)                                            || 0x00 || 0xA0000000 || TITLE_MASK, 0xA0000000 = Blacklist, boot after removing flag
|-
|PBPX_952.22 || DVD Player (Version 2.14)                                            || 0x00 || 0xA0000000 || TITLE_MASK, 0xA0000000 = Blacklist, boot after removing flag
|-
|PBPX_952.24 || DVD Player (Version 2.16)                                            || 0x00 || 0xA0000000 || TITLE_MASK, 0xA0000000 = Blacklist, boot after removing flag
|-
|PBPX_952.28 ||                                                                      || 0x00 || 0xA0000000 || TITLE_MASK, 0xA0000000 = Blacklist, boot after removing flag
|-
|PBPX_952.35 ||                                                                      || 0x00 || 0xA0000000 || TITLE_MASK, 0xA0000000 = Blacklist, boot after removing flag
|-
|PBPX_952.39 || Online Start Up Disc v3.0                                            || 0x00 || 0xA0000000 || TITLE_MASK, 0xA0000000 = Blacklist, boot after removing flag
|-
|PBPX_955.01 || Linux for PS2 Beta Release 1                                         || 0x00 || 0xA0000000 || TITLE_MASK, 0xA0000000 = Blacklist, boot after removing flag
|-
|PBPX_955.07 || Playstation 2 Linux Runtime Environment v1.0 (Disc 1)                || 0x00 || 0xA0000000 || TITLE_MASK, 0xA0000000 = Blacklist, boot after removing flag
|-
|PBPX_955.09 || Linux for PS2 Release 1.0                                            || 0x00 || 0xA0000000 || TITLE_MASK, 0xA0000000 = Blacklist, boot after removing flag
|-
|PBPX_955.18 ||                                                                      || 0x00 || 0xA0000000 || TITLE_MASK, 0xA0000000 = Blacklist, boot after removing flag
|-
|PDPX_991.09 || DVD Player (Version 3.04)                                            || 0x00 || 0xA0000000 || TITLE_MASK, 0xA0000000 = Blacklist, boot after removing flag
|-
|PSXC_002.01 || PSX Update Disc 1.10                                                 || 0x00 || 0xA0000000 || TITLE_MASK, 0xA0000000 = Blacklist, boot after removing flag
|-
|PSXC_002.02 || PSX Update Disc 1.20                                                 || 0x00 || 0xA0000000 || TITLE_MASK, 0xA0000000 = Blacklist, boot after removing flag
|-
|PSXC_002.03 || PSX Update Disc 1.31                                                 || 0x00 || 0xA0000000 || TITLE_MASK, 0xA0000000 = Blacklist, boot after removing flag
|-
|PTPX_970.38 ||                                                                      || 0x00 || 0xA0000000 || TITLE_MASK, 0xA0000000 = Blacklist, boot after removing flag
|-
|SCAJ_201.25 || Tekken 5                                                             || 0x0B || 0x40000000 || SPU2_BEHAVIOR
|-
|SCAJ_201.26 || Tekken 5                                                             || 0x0B || 0x40000000 || SPU2_BEHAVIOR
|-
|SCES_532.02 || Tekken 5                                                             || 0x0B || 0x40000000 || SPU2_BEHAVIOR
|-
|SCKA_200.49 || Tekken 5                                                             || 0x0B || 0x40000000 || SPU2_BEHAVIOR
|-
|SCPM_621.15 ||                                                                      || 0x00 ||  0x1000000 || TITLE_MASK
|-
|SCPM_621.16 ||                                                                      || 0x00 ||  0x1000000 || TITLE_MASK
|-
|SCPN_601.01 || PlayStation BB Navigator (Version 0.10)                              || 0x00 || 0xA0000000 || TITLE_MASK, 0xA0000000 = Blacklist, boot after removing flag
|-
|SCPN_601.30 || PlayStation BB Navigator (Version 0.20)                              || 0x00 || 0xA0000000 || TITLE_MASK, 0xA0000000 = Blacklist, boot after removing flag
|-
|SCPN_601.40 || PlayStation BB Navigator (Version 0.30)                              || 0x00 || 0xA0000000 || TITLE_MASK, 0xA0000000 = Blacklist, boot after removing flag
|-
|SCPN_601.50 || PlayStation BB Navigator (Version 0.31)                              || 0x00 || 0xA0000000 || TITLE_MASK, 0xA0000000 = Blacklist, boot after removing flag
|-
|SCPN_601.60 || PlayStation BB Navigator (Version 0.32)                              || 0x00 || 0xA0000000 || TITLE_MASK, 0xA0000000 = Blacklist, boot after removing flag
|-
|SCPS_110.01 || I.Q. Remix                                                           || 0x00 || 0xA0000000 || TITLE_MASK, 0xA0000000 = Blacklist, boot after removing flag
|-
|SCPS_110.10 || Yoake no Mariko (Performance Pack Edition)                           || 0x01 ||     0x1800 || SIO2_MASK
|-
|SCPS_110.18 || Yoake no Mariko                                                      || 0x01 ||     0x1800 || SIO2_MASK
|-
|SCPS_110.21 || Yoake no Mariko 2nd Act (Limited Edition)                            || 0x01 ||     0x1800 || SIO2_MASK
|-
|SCPS_110.22 || Yoake no Mariko 2nd Act                                              || 0x01 ||     0x1800 || SIO2_MASK
|-
|SCPS_150.38 || Lifeline                                                             || 0x0A ||    0x80300 || CDVD_READ_DELAY
|-
|SCPS_150.39 || Lifeline                                                             || 0x0A ||    0x80300 || CDVD_READ_DELAY
|-
|SCPS_170.01 || Gran Turismo 4                                                       || 0x0B || 0x10000000 || SPU2_BEHAVIOR
|-
|SCPS_175.01 || Linux (for PlayStation2) Release 1.0                                 || 0x00 || 0xA0000000 || TITLE_MASK, 0xA0000000 = Blacklist, boot after removing flag
|-
|SCPS_200.39 ||                                                                      || 0x00 ||  0x4000000 || TITLE_MASK
|-
|SCUS_971.67 || PaRappa the Rapper 2                                                 || 0x04 ||     0x2000 || SIF_DMA_SYNC
|-
|SCUS_972.69 || Final Fantasy XI [Disc 2]                                            || 0x02 ||        0xB || DEV9_MASK
|-
|SLES_500.48 || Donald Duck: Quack Attack                                            || 0x01 ||      0x800 || SIO2_MASK
|-
|SLES_500.62 || Orphen: Scion of Sorcery                                             || 0x08 ||      0xC1C || CPU_DELAY
|-
|SLES_503.64 || City Crisis                                                          || 0x0A ||    0x80BB8 || CDVD_READ_DELAY
|-
|SLES_504.46 || Shadow Man 2: The Second Coming                                      || 0x0A ||    0x80600 || CDVD_READ_DELAY
|-
|SLES_505.40 || Simpsons: Road Rage                                                  || 0x01 ||      0x800 || SIO2_MASK
|-
|SLES_506.08 || Shadow Man 2: The Second Coming                                      || 0x0A ||    0x80600 || CDVD_READ_DELAY
|-
|SLES_506.28 || Simpsons: Road Rage                                                  || 0x01 ||      0x800 || SIO2_MASK
|-
|SLES_507.28 || Tiger Woods PGA Tour 2002                                            || 0x0A ||    0x803E8 || CDVD_READ_DELAY
|-
|SLES_507.29 ||                                                                      || 0x0A ||    0x803E8 || CDVD_READ_DELAY
|-
|SLES_512.82 || Tiger Woods PGA Tour 2003                                            || 0x0A ||    0x803E8 || CDVD_READ_DELAY
|-
|SLES_514.79 || Def Jam Vendetta                                                     || 0x01 ||      0x802 || SIO2_MASK
|-
|SLES_518.41 || SpyHunter 2                                                          || 0x01 ||      0x800 || SIO2_MASK
|-
|SLES_518.44 || Time Crisis 3                                                        || 0x01 ||      0x800 || SIO2_MASK
|-
|SLES_519.97 || SWAT: Global Strike Team                                             || 0x01 ||      0x800 || SIO2_MASK
|-
|SLES_520.97 || SWAT: Global Strike Force                                            || 0x01 ||      0x800 || SIO2_MASK
|-
|SLES_530.37 || Super Monkey Ball Deluxe                                             || 0x01 ||      0x802 || SIO2_MASK
|-
|SLES_536.68 || Micro Machines v4                                                    || 0x01 ||      0x801 || SIO2_MASK
|-
|SLES_537.55 || Castlevania: Curse of Darkness                                       || 0x04 ||       0x10 || SIF_DMA_SYNC
|-
|SLES_537.96 || FIFA Street 2                                                        || 0x01 ||     0x1800 || SIO2_MASK
|-
|SLPM_620.42 || Kurogane no Houkou: Warship Commander                                || 0x01 ||     0x3000 || SIO2_MASK
|-
|SLPM_620.62 || Gitaroo Man One                                                      || 0x0A ||    0x80540 || CDVD_READ_DELAY
|-
|SLPM_621.05 || Taikou Risshiden IV                                                  || 0x09 || 0x2B47000A || DEV5_INT_SPEED
|-
|SLPM_621.24 || Ready 2 Rumble Boxing: Round 2                                       || 0x08 ||     0x1388 || CPU_DELAY
|-
|SLPM_621.25 || Gauntlet: Dark Legacy                                                || 0x08 ||      0xC1C || CPU_DELAY
|-
|SLPM_621.25 || Gauntlet: Dark Legacy                                                || 0x09 || 0x2B470005 || DEV5_INT_SPEED
|-
|SLPM_621.35 || Final Fantasy: XI (Beta Version)                                     || 0x00 || 0xA0000000 || TITLE_MASK, 0xA0000000 = Blacklist, boot after removing flag
|-
|SLPM_621.54 || DDRMAX Dance Dance Revolution 6thMix                                 || 0x08 ||     0x1A5E || CPU_DELAY
|-
|SLPM_622.39 || Supercar Street Challenge                                            || 0x0A ||    0x80300 || CDVD_READ_DELAY
|-
|SLPM_623.69 || Karaoke Revolution: J-Pop Vol.1                                      || 0x08 ||     0x1388 || CPU_DELAY
|-
|SLPM_623.79 || Karaoke Revolution: J-Pop Vol.2                                      || 0x08 ||     0x1388 || CPU_DELAY
|-
|SLPM_623.80 || Karaoke Revolution: J-Pop Vol.3                                      || 0x08 ||     0x1388 || CPU_DELAY
|-
|SLPM_623.81 || Karaoke Revolution: J-Pop Vol.4                                      || 0x08 ||     0x1388 || CPU_DELAY
|-
|SLPM_623.82 || Karaoke Revolution: Love & Ballad                                    || 0x08 ||     0x1388 || CPU_DELAY
|-
|SLPM_623.83 || Karaoke Revolution: Night Selection 2003                             || 0x08 ||     0x1388 || CPU_DELAY
|-
|SLPM_624.14 || Karaoke Revolution: Dreams & Memories                                || 0x08 ||     0x1388 || CPU_DELAY
|-
|SLPM_624.37 || Suisui Sweet: Amai Ai no Mitsukekata                                 || 0x0B || 0x40000000 || SPU2_BEHAVIOR
|-
|SLPM_624.50 || Karaoke Revolution: Anime Song Selection                             || 0x08 ||     0x1388 || CPU_DELAY
|-
|SLPM_624.51 || Karaoke Revolution: J-Pop Vol.5                                      || 0x08 ||     0x1388 || CPU_DELAY
|-
|SLPM_624.54 || Karaoke Revolution: J-Pop Vol.6                                      || 0x08 ||     0x1388 || CPU_DELAY
|-
|SLPM_624.55 || Karaoke Revolution: J-Pop Vol.7                                      || 0x08 ||     0x1388 || CPU_DELAY
|-
|SLPM_624.56 || Karaoke Revolution: J-Pop Vol.8                                      || 0x08 ||     0x1388 || CPU_DELAY
|-
|SLPM_624.57 || Karaoke Revolution: Snow & Party                                     || 0x08 ||     0x1388 || CPU_DELAY
|-
|SLPM_624.64 || Pop'n Taisen Pazurudame Online                                       || 0x08 ||     0x1F40 || CPU_DELAY
|-
|SLPM_624.79 || Karaoke Revolution: J-Pop Vol.9                                      || 0x08 ||     0x1388 || CPU_DELAY
|-
|SLPM_624.91 || Mega Man: The Power Battle                                           || 0x04 ||     0x2000 || SIF_DMA_SYNC
|-
|SLPM_624.92 || Karaoke Revolution: Kids Song Selection                              || 0x08 ||     0x1388 || CPU_DELAY
|-
|SLPM_625.28 || Karaoke Revolution: Kazoku Idol Sengen (Bundle Edition)              || 0x08 ||     0x1388 || CPU_DELAY
|-
|SLPM_625.29 || Karaoke Revolution: Kazoku Idol Sengen                               || 0x08 ||     0x1388 || CPU_DELAY
|-
|SLPM_650.86 || A Visual Mix: Ayumi Hamasaki Dome Tour 2001 (Disc 1)                 || 0x08 ||     0x1450 || CPU_DELAY
|-
|SLPM_650.87 || A Visual Mix: Ayumi Hamasaki Dome Tour 2001 (Disc 2)                 || 0x08 ||     0x1450 || CPU_DELAY
|-
|SLPM_650.90 || Spy Hunter                                                           || 0x01 ||     0x1800 || SIO2_MASK
|-
|SLPM_651.97 || Nobunaga's Ambition Online                                           || 0x02 ||        0xB || DEV9_MASK
|-
|SLPM_652.09 || Star Ocean: Till the End of Time                                     || 0x0B ||    0x20014 || SPU2_BEHAVIOR
|-
|SLPM_654.38 || Star Ocean: Till the End of Time (Director's Cut) (Disc 1)           || 0x0B ||    0x20014 || SPU2_BEHAVIOR
|-
|SLPM_654.39 || Star Ocean: Till the End of Time (Director's Cut) (Disc 2)           || 0x0B ||    0x20014 || SPU2_BEHAVIOR
|-
|SLPM_654.88 || Grand Theft Auto: Vice City                                          || 0x0A ||      0x300 || CDVD_READ_DELAY
|-
|SLPM_654.88 || Grand Theft Auto: Vice City                                          || 0x09 || 0x36000200 || DEV5_INT_SPEED
|-
|SLPM_656.33 || I Love Baseball: Pro Yakyu wo Koyonaku                               || 0x08 ||      0xFA0 || CPU_DELAY
|-
|SLPM_656.98 || Love Songs: ADV Futaba Riho 14-sai Natsu                             || 0x0A ||    0x80380 || CDVD_READ_DELAY
|-
|SLPM_657.05 || Final Fantasy XI: Chains of Promathia (Expansion Disc)               || 0x02 ||        0xB || DEV9_MASK
|-
|SLPM_657.06 || Final Fantasy XI: Chains of Promathia (All-In-One Edition)           || 0x02 ||        0xB || DEV9_MASK
|-
|SLPM_657.19 || Burnout 3: Takedown                                                  || 0x01 ||     0x1C00 || SIO2_MASK
|-
|SLPM_657.83 || Nobunaga no Yabou Online: Tappi no Shou                              || 0x02 ||        0xB || DEV9_MASK
|-
|SLPM_658.94 || Winning Post 6: 2005 Version                                         || 0x01 ||     0x2400 || SIO2_MASK
|-
|SLPM_659.34 || Maple Colors                                                         || 0x0A ||    0x80300 || CDVD_READ_DELAY
|-
|SLPM_659.53 || Final Fantasy: XI (Entry Disc 2005)                                  || 0x02 ||        0xB || DEV9_MASK
|-
|SLPM_659.84 || Grand Theft Auto: San Andreas                                        || 0x0A ||    0x803E8 || CDVD_READ_DELAY
|-
|SLPM_660.33 || The Sword of Etheria                                                 || 0x08 ||      0xC1C || CPU_DELAY
|-
|SLPM_660.33 || The Sword of Etheria                                                 || 0x00 ||  0x2000000 || TITLE_MASK
|-
|SLPM_660.48 || The Sword of Etheria                                                 || 0x08 ||      0xC1C || CPU_DELAY
|-
|SLPM_660.48 || The Sword of Etheria                                                 || 0x00 ||  0x2000000 || TITLE_MASK
|-
|SLPM_660.57 || Taito Memories Vol.1                                                 || 0x08 ||      0xCE4 || CPU_DELAY
|-
|SLPM_661.56 || Marheaven: Arm Fight Dream                                           || 0x01 ||     0x1800 || SIO2_MASK
|-
|SLPM_661.75 || Akumajo Dracula: Yami no Juin                                        || 0x08 ||       0x60 || CPU_DELAY
|-
|SLPM_661.75 || Akumajo Dracula: Yami no Juin                                        || 0x0B ||    0x2001C || SPU2_BEHAVIOR
|-
|SLPM_663.93 || Final Fantasy XI: Treasures of Aht Urhgan (All-In-One Edition)       || 0x0A ||    0x803E8 || CDVD_READ_DELAY
|-
|SLPM_663.93 || Final Fantasy XI: Treasures of Aht Urhgan (All-In-One Edition)       || 0x09 || 0x2B47000A || DEV5_INT_SPEED
|-
|SLPM_663.93 || Final Fantasy XI: Treasures of Aht Urhgan (All-In-One Edition)       || 0x02 ||        0xB || DEV9_MASK
|-
|SLPM_663.94 || Final Fantasy XI: Treasures of Aht Urhgan                            || 0x02 ||        0xB || DEV9_MASK
|-
|SLPM_664.36 || Aria the Natural                                                     || 0x01 ||     0x1800 || SIO2_MASK
|-
|SLPM_664.36 || Aria the Natural                                                     || 0x00 ||  0xA000000 || TITLE_MASK
|-
|SLPM_665.39 || Nobunaga no Yabou Online: Haten no Shou                              || 0x02 ||        0xB || DEV9_MASK
|-
|SLPM_665.58 || Tomb Raider: Legend                                                  || 0x08 ||      0x3E8 || CPU_DELAY
|-
|SLPM_665.74 || Detective Evangelion                                                 || 0x00 ||  0x2000000 || TITLE_MASK
|-
|SLPM_680.07 || Karaoke Revolution (Trial)                                           || 0x08 ||     0x1388 || CPU_DELAY
|-
|SLPM_680.10 ||                                                                      || 0x08 ||     0x1388 || CPU_DELAY
|-
|SLPS_200.08 || Morita Shogi                                                         || 0x08 ||     0x1388 || CPU_DELAY
|-
|SLPS_200.20 || FIFA 2000 World Championship                                         || 0x04 ||     0x2001 || SIF_DMA_SYNC
|-
|SLPS_200.37 || Go Go Golf                                                           || 0x09 || 0x2B47000A || DEV5_INT_SPEED
|-
|SLPS_200.38 || Grappler Baki: Baki Saidai no Tournament                             || 0x08 ||     0x1194 || CPU_DELAY
|-
|SLPS_200.53 || Tenshi no Present: Marle Oukoku Monogatari (Limited Edition)         || 0x0B || 0x20000000 || SPU2_BEHAVIOR
|-
|SLPS_200.66 || Tenshi no Present: Marle Oukoku Monogatari                           || 0x0B || 0x20000000 || SPU2_BEHAVIOR
|-
|SLPS_201.01 || City Crisis                                                          || 0x0A ||    0x80BB8 || CDVD_READ_DELAY
|-
|SLPS_201.11 || Magical Sports Pro Baseball 2001                                     || 0x09 || 0x2B47000A || DEV5_INT_SPEED
|-
|SLPS_201.72 || Koushien: Konpeki no Sora                                            || 0x09 || 0x2B47000A || DEV5_INT_SPEED
|-
|SLPS_201.73 || Hard Hitter 2                                                        || 0x0A ||    0x80300 || CDVD_READ_DELAY
|-
|SLPS_201.97 || Surfing Air Show with RatBoy                                         || 0x09 || 0x2B47000A || DEV5_INT_SPEED
|-
|SLPS_201.99 || F1 2002                                                              || 0x0B ||    0x20005 || SPU2_BEHAVIOR
|-
|SLPS_202.00 || Final Fantasy XI                                                     || 0x02 ||        0xB || DEV9_MASK
|-
|SLPS_204.04 || Rakushou! Pachi-Slot Sengen 2                                        || 0x0A ||    0x80300 || CDVD_READ_DELAY
|-
|SLPS_204.29 || Hissatsu Pachi-Slot Evolution: Ninja Hattori-Kun V                   || 0x08 ||     0x1B58 || CPU_DELAY
|-
|SLPS_204.55 || Simple 2000 Series Vol.94: The Aka-Champion - Come on Baby           || 0x0B || 0x40000000 || SPU2_BEHAVIOR
|-
|SLPS_250.08 || Sorcerous Stabber Orphen                                             || 0x08 ||      0xC1C || CPU_DELAY
|-
|SLPS_250.71 || A Visual Mix: Ayumi Hamasaki Dome Tour 2001                          || 0x08 ||     0x1450 || CPU_DELAY
|-
|SLPS_250.72 || A Visual Mix: Ayumi Hamasaki Dome Tour 2001                          || 0x08 ||     0x1450 || CPU_DELAY
|-
|SLPS_250.81 || Saishuu Densha                                                       || 0x0A ||    0x803E8 || CDVD_READ_DELAY
|-
|SLPS_251.36 || Kuon no Kizuna Sairin Mikotonori                                     || 0x0A ||    0x805DC || CDVD_READ_DELAY
|-
|SLPS_251.42 || Tiger Woods PGA Tour 2002                                            || 0x0A ||    0x803E8 || CDVD_READ_DELAY
|-
|SLPS_251.50 || Only You                                                             || 0x0B || 0x40000000 || SPU2_BEHAVIOR
|-
|SLPS_252.37 || Only You                                                             || 0x0B || 0x40000000 || SPU2_BEHAVIOR
|-
|SLPS_252.75 || Def Jam: Vendetta                                                    || 0x01 ||      0x802 || SIO2_MASK
|-
|SLPS_252.78 || Memories Off: Mix                                                    || 0x0A ||    0x80300 || CDVD_READ_DELAY
|-
|SLPS_252.90 || Time Crisis 3                                                        || 0x01 ||      0x800 || SIO2_MASK
|-
|SLPS_253.15 || One Piece: Grand Battle 3                                            || 0x01 ||     0x1800 || SIO2_MASK
|-
|SLPS_253.57 || 3-Nen B-Gumi Kinpachi Sensei: Densetsu no Kyoudan ni Tate!           || 0x01 ||     0x1800 || SIO2_MASK
|-
|SLPS_253.79 || Tokyo Majin Gakuen: Kaihoujyou Kefurokou                             || 0x0A ||    0x803E8 || CDVD_READ_DELAY
|-
|SLPS_254.06 || Hitman: Contracts                                                    || 0x08 ||      0xDAC || CPU_DELAY
|-
|SLPS_254.18 || Ace Combat 5: The Unsung War                                         || 0x0A ||   0x500000 || CDVD_READ_DELAY
|-
|SLPS_255.10 || Tekken 5                                                             || 0x0B || 0x40000000 || SPU2_BEHAVIOR
|-
|SLPS_255.85 || Monster Farm 5: Circus Caravan                                       || 0x07 ||          5 || MECHA_RECOGTIME
|-
|SLPS_255.86 || Tales of the Abyss                                                   || 0x0A ||    0x803E8 || CDVD_READ_DELAY
|-
|SLPS_256.04 || Ar tonelico Qoga: Knell of Ar Ciel                                   || 0x00 ||  0xA000000 || TITLE_MASK
|-
|SLPS_256.67 || Daito Giken Premium Pachi-Slot Collection: Yoshimune                 || 0x01 ||     0x1800 || SIO2_MASK
|-
|SLPS_256.98 || Fatal Fury Battle Archives Volume 2                                  || 0x00 ||  0xA000000 || TITLE_MASK
|-
|SLPS_257.08 || The Familiar of Zero (Limited Edition)                               || 0x0A ||    0x803E8 || CDVD_READ_DELAY
|-
|SLPS_257.09 || The Familiar of Zero                                                 || 0x0A ||    0x803E8 || CDVD_READ_DELAY
|-
|SLPS_257.21 || HimeHibi - Princess Days                                             || 0x0B ||  0x8000000 || SPU2_BEHAVIOR
|-
|SLPS_257.22 || Routes PE (Limited Edition)                                          || 0x08 ||      0x3E8 || CPU_DELAY
|-
|SLPS_257.27 || Routes PE                                                            || 0x08 ||      0x3E8 || CPU_DELAY
|-
|SLPS_732.49 || Ar tonelico Qoga: Knell of Ar Ciel (Platinum)                        || 0x00 ||  0xA000000 || TITLE_MASK
|-
|SLUS_200.11 || Orphen: Ocion of Sorcery                                             || 0x08 ||     0x1388 || CPU_DELAY
|-
|SLUS_200.11 || Orphen: Ocion of Sorcery                                             || 0x09 ||  0x8000010 || DEV5_INT_SPEED
|-
|SLUS_200.77 || Donald Duck: Go'in Quackers                                          || 0x01 ||      0x800 || SIO2_MASK
|-
|SLUS_202.74 || City Crisis                                                          || 0x0A ||    0x80BB8 || CDVD_READ_DELAY
|-
|SLUS_203.05 || Simpsons: Road Rage                                                  || 0x01 ||      0x800 || SIO2_MASK
|-
|SLUS_203.64 || Tiger Woods PGA Tour 2002                                            || 0x0A ||    0x803E8 || CDVD_READ_DELAY
|-
|SLUS_204.13 || Shadowman 2                                                          || 0x0A ||    0x80600 || CDVD_READ_DELAY
|-
|SLUS_204.33 || SWAT: Global Strike Team                                             || 0x01 ||      0x800 || SIO2_MASK
|-
|SLUS_204.88 || Star Ocean: Til the end of Time [Disc 1]                             || 0x08 ||     0x1388 || CPU_DELAY
|-
|SLUS_205.72 || Tiger Woods PGA Tour 2003                                            || 0x0A ||    0x803E8 || CDVD_READ_DELAY
|-
|SLUS_205.90 || Spyhunter 2                                                          || 0x01 ||      0x800 || SIO2_MASK
|-
|SLUS_206.35 || Muppets Party Cruise                                                 || 0x01 ||      0x801 || SIO2_MASK
|-
|SLUS_206.39 || Def Jam Vendetta                                                     || 0x01 ||      0x800 || SIO2_MASK
|-
|SLUS_206.86 || Splashdown: Rides Gone Wild                                          || 0x0A ||    0x80400 || CDVD_READ_DELAY
|-
|SLUS_208.38 || All-Star Baseball 2005                                               || 0x01 ||      0x802 || SIO2_MASK
|-
|SLUS_208.51 || Ace Combat 5: The Unsung War                                         || 0x0A ||   0x500000 || CDVD_READ_DELAY
|-
|SLUS_208.91 || Star Ocean: Til the end of Time [Disc 2]                             || 0x08 ||     0x1388 || CPU_DELAY
|-
|SLUS_209.18 || Super Monkey Ball: Deluxe                                            || 0x01 ||      0x800 || SIO2_MASK
|-
|SLUS_210.59 || Tekken 5                                                             || 0x0B || 0x40000000 || SPU2_BEHAVIOR
|-
|SLUS_210.70 || Final Fantasy XI: Chains of Promathia                                || 0x02 ||        0xB || DEV9_MASK
|-
|SLUS_210.89 || Karaoke Revolution Vol.3                                             || 0x08 ||     0x1388 || CPU_DELAY
|-
|SLUS_213.31 || Sonic Riders                                                         || 0x01 ||      0x800 || SIO2_MASK
|-
|SLUS_213.39 || Puzzle Challenge                                                     || 0x01 ||      0x800 || SIO2_MASK
|-
|SLUS_214.04 || Final Fantasy XI: Treasures of Aht Urhgan                            || 0x02 ||        0xB || DEV9_MASK
|-
|SLUS_214.52 || Valkyrie Profile 2: Silmeria                                         || 0x08 ||     0x1388 || CPU_DELAY
|- 
|}

==Other game patches (unofficial)==
There are other unofficial ways to patch the PS2 games such the [https://forums.pcsx2.net/Thread-A-simplistic-guide-to-pnach-files-aka-pnach-for-dummies pnach] format, or the widescreen patches that allows 16:9 screen output for some games by hex editing the ISO, or by applying ppf patches. Games work fine on PS3 with same compatibility like before patching. Also some 480p (aka progressive scan) patches work fine. http://ps2wide.net/

The problem of this methods is the patch is applyed over the ISO and is modifyed permanently, but this problem can be avoided in PS3 because that unofficial patches can be "ported" to the official config format to be used by ps2_netemu.self, by using the official config format the settings and patchs from the config file are applyed "on the fly" and the ISO is not modifyed

==ps2_title_brute code==

A script to calculate cdvd key magic used in ps2emu, gxemu and softemu from given input title id.
On real PS2 this value seems to be stored at 0x1F402020-0x1F402024.
It contains code for bruting as well. Just call gen_sum with the title id in a specific format to get it.

<syntaxhighlight lang="python">
title_ = "SLUS_200.73"

#patches = [0x6b1ade00dL, 0x23d92589c5L, 0x24d92589d5L, 0x608634992dL, 0x5ca15df14dL]
#patches = [0x37ae1cb18dL, 0x608634999dL, 0x06b1ade00dL, 0x5fc674d915L, 0x178e3c9165L, 0x3889349935L,0x18fe4ce145L,0xc126943985,0xe90ebc11b5,0x58be0ca165L]
patches = [ 0xCD1298155L, 0x12C93199A5L, 0x15C93199ADL, 0x24D92589A5L, 0x2CD12D8125L, 0x34C9359935L, 0x34C93599E5L, 0x34C93599E5L, 0x449961C9E5L, 0x4C9169C1CDL, 0x4C9169C1D5L, 0x4C9169C1DDL, 0x4C9169C1E5L, 0x4C9169C1F5L, 0x4C9169C1FDL, 0x4CB14DE12DL, 0x54A955F915L, 0x5CA15DF165L, 0x5CA15DF1FDL, 0x5CA15DF1FDL, 0x649965C94DL, 0x649965C955L, 0x649965C95DL, 0x649965C965L, 0x649965C96DL, 0x6BB149E15DL, 0x6C916DC165L, 0x6C916DC1A5L, 0x6C916DC1ADL, 0x6C916DC1B5L, 0x6C916DC1D5L, 0x6C916DC1DDL, 0x748975D9DDL, 0x7C817DD125L, 0x7C817DD165L, 0x7C817DD16DL, 0x7C817DD175L, 0x7C817DD1CDL, 0x84798529BDL, 0x8559A109ADL, 0x8579852915L, 0x8579852965L, 0x8D51A90145L, 0x8D51A901B5L, 0x8D51A901BDL, 0x8D718D21BDL, 0x9C619D31E5L, 0x9D41B911ADL, 0x9D619D31C5L, 0x9F29357805L, 0x9F293578E5L, 0xB549B51915L, 0xB549B51925L, 0xB549B5195DL, 0xB549B519A5L, 0xB549B519ADL, 0xBC61793025L, 0xBD41BD1105L, 0xC439C569F5L, 0xC7716D20D5L, 0xC7716D20D5L, 0xCA11E941F5L, 0xCF7965285DL, 0xCF7965285DL, 0xD20911582DL, 0xD7617D308DL, 0xE339C1695DL, 0xE794CCB06DL, 0xEA3129608DL, 0xEC11ED4115L, 0xEF594508D5L, 0xF409F559ADL, 0xF7415D10E5L, 0xF7415D10E5L]

def gen_sum(title):
        var_30 = []
        for i in range(0x1A):
                var_30.append(0)
        r9=5
        r31=0
        #Title 2 decimal
        while r9 != 0xB:
                r11 = r9 + 1
                if r9 == 8:
                        pass
                else:
                        r5 = ord(title[r9:r9+1])
                        r7 = r31 * 0xA
                        r6 = r7 & 0xFFFFFFFF
                        r4 = r5 + r6
                        r9 = r4 - 0x30
                        r31 = r9 & 0xFFFFFFFF
                r9 = r11
        #print r31
        r10 = ord(title[3:4]) # S
        r7 = (r31 >> 10) & 0x7F
        r11 = ord(title[1:2]) # L
        r8 = ord(title[2:3])  # U
        r6 = (r10 >> 1) & 0x3F
        r12 = ord(title[0:1]) # S
        r4 = (r11 >> 3) & 0xF
        r5 = (r8 >> 2) & 0x1F
        r3 = (r12 >> 4) & 7
        r9 = r10 << 7
        r0 = r8 << 6
        r10 = r11 << 5
        r8 = r12 << 4
        r12 = r31 << 3
        r11 = r10 | r5
        r9 = r9 | r7
        r0 = r0 | r6
        var_30[2] = r11 & 0xFF
        r7 = r8 | r4
        var_30[0] = (r9 & 0xFF)
        r10 = r12 | r3
        var_30[1] = (r0 & 0xFF)
        r12 = (r31 >> 2) & 0x3FFFFFF8
        var_30[3] = (r7 & 0xFF)
        r8 = 5
        var_30[4] = (r10 & 0xFF)
        var_30[0x19] = (r12 & 0xFF)
        var_30[0x18] = (r8 & 0xFF)
        var_30 = [int(v) for v in var_30]
        #print [hex(v) for v in var_30]
        r5 = var_30
        r6 = 0
        r4 = 0
        while r6 < 5:
                r12 = r5[r6:r6+1][0]
                r7 = r6 + 1
                r0 = var_30[0x19]
                r3 = r6 + 0x10
                r9 = r12 ^ r0
                r31 = r3
                r5[r6] = r9
                r6 = r7
                r5[r31] = r4
        #print [hex(v) for v in r5]
        r9 = 0
        r10 = 0
        while r10 < 5:
                r11 = r10 + 1
                r6 = r5[r10:r10+1][0]
                r4 = r9 << 8
                r10 = r11
                r9 = r4 | r6
        return r9
'''
print hex(gen_sum(title_))

a1='A'
a2='A'
a3='A'
a4='A'
while a1 <= 'Z':
        a2='A'
        a3='A'
        a4='A'
        while a2 <= 'Z':
                a3='A'
                a4='A'
                while a3 <= 'Z':
                        a4='A'
                        while a4 <= 'Z':
                                #print "%s%s%s%s" % (a1,a2,a3,a4)
                                for i in range(99999):
                                        t = "%s%s%s%s_" % (a1,a2,a3,a4) + '{4}{3}{2}.{1}{0}'.format(i%10,(i/10)%10,(i/100)%10,(i/1000)%10,(i/10000)%10)
                                        if gen_sum(t) in patches:
                                                print t
                                                print True
                                a4=chr(ord(a4)+1)
                                print "%s%s%s%s" % (a1,a2,a3,a4)
                        a3=chr(ord(a3)+1)
                        print "%s%s%s%s" % (a1,a2,a3,a4)
                a2=chr(ord(a2)+1)
        a1=chr(ord(a1)+1)
'''

print hex(gen_sum("SLUS_213.86"))
'''
for i in range(99999):
        t = "SLUS_" + '{4}{3}{2}.{1}{0}'.format(i%10,(i/10)%10,(i/100)%10,(i/1000)%10,(i/10000)%10)
        if gen_sum(t) in patches:
                print "%s %x" % (t, gen_sum(t))

'''
</syntaxhighlight>
<br>
Alternative script version for better readability. Work same way as one above, just cleaner looking code.
<syntaxhighlight lang="python">
ID = "SLUS_202.02"

def gen_sum2(title):

        decimal_id = 0
        decimal_id += ( ord(title[10:11]) - 0x30)
        decimal_id += ((ord(title[9:10])  - 0x30) * 10)
        decimal_id += ((ord(title[7:8])   - 0x30) * 100)
        decimal_id += ((ord(title[6:7])   - 0x30) * 1000)
        decimal_id += ((ord(title[5:6])   - 0x30) * 10000)
        
        first_char  = ord(title[0:1])
        second_char = ord(title[1:2])
        third_char  = ord(title[2:3])
        fourth_char = ord(title[3:4])
        
        temp0  = (first_char  >> 4) & 7
        temp1  = (second_char >> 3) & 0xF
        temp2  = (third_char  >> 2) & 0x1F
        temp3  = (fourth_char >> 1) & 0x3F
        temp4  = (first_char  << 4)
        temp5  = (second_char << 5)
        temp6  = (third_char  << 6)
        temp7  = (fourth_char << 7)
        
        temp8  = (decimal_id >> 10) & 0x7F
        temp9  = (decimal_id << 3 )
        temp10 = (decimal_id >> 2 ) & 0xF8

        temp8 |= temp7
        temp3 |= temp6
        temp2 |= temp5
        temp1 |= temp4
        temp0 |= temp9
        
        temp8 &= 0xFF
        temp3 &= 0xFF
        temp2 &= 0xFF
        temp1 &= 0xFF
        temp0 &= 0xFF
        
        temp8 ^= temp10
        temp3 ^= temp10
        temp2 ^= temp10
        temp1 ^= temp10
        temp0 ^= temp10        

        result = (temp0 | (temp1 << 8) | (temp2 << 16) | (temp3 << 24) | (temp8 << 32))
        return result

print(hex(gen_sum2(ID)))
</syntaxhighlight>
Alternative implementation: https://github.com/PCSX2/pcsx2/blob/1a3d77b2c0c6b57313f0dceaf5ecc3f8cb453497/pcsx2/CDVD/CDVD.cpp#L545

==External References==
* [http://www.eurogamer.net/articles/digitalfoundry-vs-ps2-classics-on-ps3 Digital Foundry vs. PS2 Classics on PS3]
* [http://www.ps3hax.net/showthread.php?t=53444 PS2 Classics Algorithm By flatz]
* [https://web.archive.org/web/20140422030433/http://gitorious.ps3dev.net/ps2classic C port]
* [https://web.archive.org/web/20150623164110/http://www.pshomebrew.net/wiki/PS2_Classics_Emulator_Compatibility_List Alternative Compatibility List (outdated)]
* [http://www.ps3hax.net/showthread.php?p=620747#post620747 How to properly convert Final Fantasy XII: IZJS For ps2classics]
* [https://en.wikipedia.org/wiki/List_of_PlayStation_2_Classics Wikipedia list of officially released PS2 Classics]
<br>
CPU-GPU intensive games + games only playable in software render on PCSX2:
* http://wiki.pcsx2.net/index.php/Category:GPU_intensive_games
* http://wiki.pcsx2.net/index.php/Category:CPU_intensive_games
* http://wiki.pcsx2.net/index.php/Category:Software_rendering_only_games

{{Reverse engineering}}<noinclude>
[[Category:Main]]
</noinclude>