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            Table of contents
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                * How to set up your BIOS:
            
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             * Extensions
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Table of contents
 * Requirements
 * BIOS
    * How to set up your BIOS:

 * Other required files and directories
 * Extensions
 * Features
 * Directories
 * Rumble support
 * Joypad
 * Compatibility
 * External Links
 * Libretro PS2 cores


SONY - PLAYSTATION (LRPS2)¶

LRPS2 is still under development. The content on this page is not the final
version. Connecting a remote while any content is running may cause retroarch
crashes. If you get a failed to load content warning, respectively; Check your
BIOS, video driver(try to switch between drivers, use 'GL') and content. There’s
a working OpenGL renderer and a Direct3D11 renderer option. Direct3D 11 renderer
can be faster than OpenGL but also has less features. Pick whichever works best
for you. On Xbox you will only be able to use Direct3D11 anyways. This core uses
the x86_64 dynarec. It is still less compatible than the 32bit x86 dynarec in
PCSX2, so keep that in mind. It’s for similar reasons that the software renderer
right now won’t work (it’s not compatible yet with x86_64, not in upstream
either). There’s a bug that can happen right now upon closing content or exiting
RetroArch with the LRPS2 core on Windows – the RetroArch process might not
completely cleanly shut itself off and you might still be able to see a 0% CPU
process remaining in the Task Manager. We have not been able to figure out how
to fix that yet as the PCSX2 codebase is a definite case of ‘here be dragons’,
but for now when this happens, you can just bring up the Task Manager and close
it manually. It shouldn’t have a real detriment on performance but it is of
course far from ideal and hopefully something we can fix soon with the help of
some contributors. We have found this happens the most with the Direct3D 11
renderers. Switching resolution at runtime right now can be a bit unstable, so
does switching fullscreen resolution. We might just make resolution switching
require a restart since this tends to be too unstable for now.

LRPS2 core has been authored by

 * Libretro

LRPS2 core is licensed under

 * GPLv2
 * GPLv3
 * LGPLv2.1
 * LGPLv3

A summary of the licenses behind RetroArch and its cores can be found here.


REQUIREMENTS¶

CPU

 * Supports SSE2/AVX2
 * PassMark Single Thread Performance rating near or greater than 1600/2100
 * Two physical cores, with hyperthreading
 * Four physical cores, with or without hyperthreading

GPU

 * Direct3D10/11 support
 * OpenGL 3.x/4.5 support
 * PassMark G3D Mark rating around 3000 (GeForce GTX 750)
 * 2 GB/4 GB Video Memory

RAM

 * 4GB/8GB

Attention

Because of the complex nature of emulation, even if you meet the recommended
requirements there will be games that will NOT run at full speed due to
emulation imperfection, floating point emulation differences, issues with
emulator itself or other problems.


BIOS¶

Attention

For compatibility reasons, it is recommended to not use a SCPH-10000 BIOS.

Notes

 * No specific filename required, as long as the BIOS was properly dumped the
   core will be able to find it.
 * The BIOS files must be extracted, the core will not be able to find them if
   they're zipped.
 * LRPS2 does not implement region locking, so if you have a PAL BIOS you can
   play NTSC games, and vice versa. However, this only applies with the Fast
   Boot core option enabled.

LRPS2 requires a BIOS to work, the BIOS can be provided as a single 4MB .bin
file or with additional files (usually .erom, .nvm, .rom1 and .rom2).

In case you're having additional files with the .bin, make sure they're sharing
the same filename or they'll be ignored.
So as an example let's say you have a SCPH-70004_BIOS_V12_EUR_200.BIN file with
an EROM file, a ROM1 file and a ROM2 file, it should look like this:

SCPH-70004_BIOS_V12_EUR_200.BIN
SCPH-70004_BIOS_V12_EUR_200.EROM
SCPH-70004_BIOS_V12_EUR_200.ROM1
SCPH-70004_BIOS_V12_EUR_200.ROM2



HOW TO SET UP YOUR BIOS:¶

 1. Go inside your RetroArch "system" folder (usually retroarch/system/, but if
    you're not sure check the path in Settings > Directory > System/BIOS).
 2. Create a pcsx2 folder.
 3. Go inside the pcsx2 folder and create a bios folder.
 4. Go inside the bios folder and paste your BIOS file(s) here.

For example, the default path would look like this:
system\pcsx2\bios\[bios_file_name].bin

If you're on a case-sensitive OS, make sure both pcsx2 and bios folders are
lowercase.


OTHER REQUIRED FILES AND DIRECTORIES¶

The file structure should look like this:

retroarch/
└── system/
    └── pcsx2/
        ├── bios/
        ├── cheats/
        ├── cheats_ws/
        └── memcards/   (optional)


 * bios/ is where the BIOS files are located (see the 'BIOS' section above),
   this should be created by the user.
 * cheats/ is where you can store cheat patches, the folder is created on the
   first boot automatically.
 * cheats_ws/ is where you can store additional widescreen patches, the folder
   is created on the first boot automatically.
 * memcards/ is where the "legacy" memory cards are stored. This folder is
   optional, see the 'Directories' section below.

Info

Although the cheats_ws folder is empty when created, a very large number of
widescreen patches are already included in the core itself.


EXTENSIONS¶

Content that can be loaded by the LRPS2 core have the following file extensions:

 * .elf
 * .iso
 * .ciso
 * .chd
 * .cso
 * .bin
 * .mdf
 * .nrg
 * .dump
 * .gz
 * .img
 * .m3u

RetroArch database(s) that are associated with the LRPS2 core:

 * Sony - PlayStation 2


FEATURES¶

Frontend-level settings or features that the LRPS2 core respects.

Feature Supported Restart ✕ Screenshots ✔ Saves ✔ States ✕ Rewind ✕ Netplay ✕
Core Options ✔ RetroAchievements ✕ RetroArch Cheats ✕ Native Cheats ✔ Controls ✔
Remapping ✔ Multi-Mouse ✕ Rumble ✔ Sensors ✕ Camera ✕ Location ✕ Subsystem ✕
Softpatching ✕ Disk Control ✕ Username ✕ Language ✕ Crop Overscan1 ✕ LEDs ✕


DIRECTORIES¶

LRPS2's library name is 'pcsx2'

LRPS2 core saves/loads to/from these directories.

Frontend's Save directory

 * Memory card - slot 1

retroarch/saves/pcsx2/Slot 1/

 * Memory card - slot 2

retroarch/saves/pcsx2/Slot 2/

Frontend's System directory

 * Legacy memory cards

retroarch/system/pcsx2/memcards/

The legacy memory cards folder is only used if Mcd001.ps2 and/or Mcd002.ps2 is
detected in retroarch/system/pcsx2/memcards/ and the "Memory Card: Slot N" core
option is set to "Legacy".
This can be useful if you were using an older version of the core that didn't
use the saves folder yet, or if you transferred the memcards folder directly
from standalone.


RUMBLE SUPPORT¶

Rumble only works in the LRPS2 core when

 * The content being ran has rumble support.
 * The frontend being used has rumble support.
 * The joypad device being used has rumble support.
 * The corresponding user's device type is set to DualShock 2


JOYPAD¶



User 1 - 8 input descriptors RetroPad Inputs PlayStation Controller Inputs
DualShock Inputs Analog Controller Inputs Analog Joystick Inputs neGcon Inputs
Cross Analog button I Square Analog button II Select Start Start D-Pad Up D-Pad
Up D-Pad Down D-Pad Down D-Pad Left D-Pad Left D-Pad Right D-Pad Right Circle A
Triangle B L1 Left shoulder button (analog) R1 Right shoulder button (digital)
L2 Analog button II R2 Analog button I L3 R3 Left Analog X X Left Joystick X
Twist Left Analog Y Y Left Joystick Y Right Analog X X Right Joystick X Right
Analog Y Y Right Joystick Y


COMPATIBILITY¶

The current standalone development version is reported to be compatible with
approximately 97.4% of 2,641 tested games as of August 2020. Compatibility means
only that the game will not crash, lock up, or enter a loop; there can still be
bugs, missing post-processing effects, textures, and shadows in many compatible
games. This is especially the case in hardware mode; a slower software mode is
available for bugs without workarounds. You can check compatibilirt list in here


EXTERNAL LINKS¶

 * LRPS2 Core info file
 * LRPS2 Github Repository
 * Report LRPS2 Core Issues Here


LIBRETRO PS2 CORES¶

 * PlayStation 2 (Play!)

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 1. Overscan cropping available via Core Options instead of frontend settings ↩

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Last update: 2023-02-15
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