mirror of
https://github.com/Abdess/retroarch_system.git
synced 2026-11-11 12:33:53 -06:00
Abdessamad Derraz
45db717db9
Each PCSX2 fork declares how its LoadBiosVersion reads the table: the strncmp length on RESET, the NUL test on names, EXTINFO, and what a read past the end does, from the source at the pin or the shipped libemucore.so for NetherSX2 and its Turnip builds. The Recalbox libretro PCSX2 and PCEE2 check no size, so their 4 to 8 MB bounds are gone, and the PCEE2 and ARMSX2 arcade images require the COH-H zone.
159 lines
6.5 KiB
YAML
159 lines
6.5 KiB
YAML
# LRPS2 at 9485a53 with Recalbox's path patch
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# Source: https://github.com/libretro/parallel-ps2
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# Upstream: https://github.com/PCSX2/pcsx2
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emulator: "LRPS2 (9485a53, Recalbox)"
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type: libretro
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core_classification: community_fork
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bios_mode: agnostic
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source: "https://github.com/libretro/parallel-ps2"
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upstream: "https://github.com/PCSX2/pcsx2"
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profiled_date: "2026-11-10"
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source_commit: "9485a53fa5aa2bff17e04518116107f81a8c82e3"
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pin_frozen: "Recalbox, the only platform that ships it, builds this revision with package/libretro-ps2/0001-recalbox-paths.patch (Recalbox package/libretro-ps2/libretro-ps2.mk:9 at tag 10.1.1). Later commits are not part of that build."
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pin_build:
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- platform: recalbox
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repo: "https://gitlab.com/recalbox/recalbox"
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revision: "10.1.1"
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path: "package/libretro-ps2/libretro-ps2.mk"
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variable: LIBRETRO_PS2_VERSION
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value: "9485a53fa5aa2bff17e04518116107f81a8c82e3"
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core_version: null
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version_basis:
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kind: none
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display_name: "Sony - PlayStation 2 (LRPS2 9485a53 for Recalbox)"
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cores: [ps2]
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built_by: [recalbox]
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systems: [sony-playstation-2]
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bios_directory: "ps2/"
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resources_directory: "ps2/resources/"
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notes: |
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Recalbox installs the build as ps2_libretro.so (Recalbox
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package/libretro-ps2/libretro-ps2.mk:31-33) and lists it as the libretro
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core ps2 of the ps2 system (Recalbox
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package/recalbox-romfs2/systems/ps2/system.ini:65-69).
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The library version is the short commit hash git reports at build time
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(cmake/BuildParameters.cmake:4-9, libretro/main.cpp:1424-1428).
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Its patch moves the BIOS scan from pcsx2/bios to ps2 below the system
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directory (libretro/main.cpp:1807), the data root from system/pcsx2 to
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system/ps2, so resources are read from ps2/resources
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(libretro/main.cpp:1911-1913), the BIOS folder default to
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/recalbox/share/bios/ps2, the same folder on Recalbox, and memory cards to
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/recalbox/share/saves/ps2 (pcsx2/Pcsx2Config.cpp:1042-1043, 1061-1062).
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BIOS detection is filename-agnostic: ps2/ is scanned for any file between
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4 and 8 MB with a RESET and a ROMVER romdir entry, no hash is checked, and
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the list fills the pcsx2_bios core option whose default is the first BIOS
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found (libretro/main.cpp:1801-1839). retro_load_game refuses to start when
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no BIOS was found (libretro/main.cpp:1928-1932). The companion files take
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their path from the selected BIOS.
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The DEV9 hard disk image is user storage the core creates, not a file to
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obtain.
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files:
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- name: "<bios>.bin"
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found_by: content
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path: "ps2/<bios>.bin"
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required: true
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description: "PS2 BIOS binary"
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min_size: 4194304
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max_size: 8388608
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validation: [size, romdir]
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romdir:
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reset_compare: 10
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missing_reset: ends_walk
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terminated_names: true
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extinfo: true
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unreadable_romver: ends_walk
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truncated_walk: ends_walk
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config_key: "pcsx2_bios"
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source_ref: "source libretro/main.cpp:1801-1839, source libretro/main.cpp:360-365, source libretro/main.cpp:1928-1932, source pcsx2/ps2/BiosTools.cpp:31-32, 60-187, 231-323, source pcsx2/Pcsx2Config.cpp:994-1000, 1042, 1051-1061"
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note: >
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Any file of 4 to 8 MB in ps2/ whose romdir holds RESET and ROMVER. The
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pcsx2_bios core option picks one, and the first valid image found is used
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when the configured one is missing.
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- name: "<bios>.rom1"
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path: "ps2/<bios>.rom1"
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required: false
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max_size: 4194304
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description: "DVD player ROM"
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source_ref: "source pcsx2/ps2/BiosTools.cpp:189-213, 314, source pcsx2/MemoryTypes.h:24"
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note: "Tries <bios path>.rom1, then the BIOS path with its extension replaced by rom1. Skipped when neither exists."
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- name: "<bios>.rom2"
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path: "ps2/<bios>.rom2"
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required: false
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max_size: 524288
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description: "Chinese ROM extension"
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source_ref: "source pcsx2/ps2/BiosTools.cpp:189-213, 315, source pcsx2/MemoryTypes.h:25"
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note: "Same naming as rom1. Present only on Chinese consoles."
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- name: "<bios>.nvm"
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path: "ps2/<bios>.nvm"
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required: false
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hle_fallback: true
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size: 1024
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description: "NVRAM / EEPROM data"
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source_ref: "source pcsx2/CDVD/CDVD.cpp:59-60, source pcsx2/CDVD/CDVD.cpp:160-184"
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note: >
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Read at the BIOS path with the extension replaced by nvm. Region and
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language defaults are filled in when the file is missing, short, or has
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no language or region parameters.
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- name: "<bios>.mec"
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path: "ps2/<bios>.mec"
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required: false
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hle_fallback: true
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size: 4
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description: "Mechacon version"
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source_ref: "source pcsx2/CDVD/CDVD.cpp:62, source pcsx2/CDVD/CDVD.cpp:186-196"
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note: "Read at the BIOS path with the extension replaced by mec. Written as 0x00020603 when missing."
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- name: "GameIndex.yaml"
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path: "ps2/resources/GameIndex.yaml"
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required: false
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installed_on: [recalbox]
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description: "Per-game fixes and settings database"
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source_ref: "source pcsx2/GameDatabase.cpp:48, source pcsx2/GameDatabase.cpp:880-885, source libretro/main.cpp:2265-2302"
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note: >
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Read from ps2/resources at the first game lookup. Without it no game fix
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applies. Recalbox installs the copy of the built tree in
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bios/ps2/resources (Recalbox package/libretro-ps2/libretro-ps2.mk:34-37).
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- name: "cheats_ws.zip"
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path: "ps2/resources/cheats_ws.zip"
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required: false
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description: "widescreen patches archive"
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source_ref: "source pcsx2/VMManager.cpp:333-348, source libretro/main.cpp:2256-2263"
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note: "Read when widescreen patches are enabled and ps2/cheats_ws holds no patch for the game."
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- name: "cheats_ni.zip"
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path: "ps2/resources/cheats_ni.zip"
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required: false
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description: "no-interlacing patches archive"
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source_ref: "source pcsx2/VMManager.cpp:366-383, source libretro/main.cpp:2256-2263"
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note: "Read when no-interlacing patches are enabled and ps2/cheats_ni holds no patch for the game."
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- name: "eeprom.dat"
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load_from: working_directory
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required: false
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hle_fallback: true
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size: 64
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description: "DEV9 EEPROM"
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source_ref: "source pcsx2/DEV9/DEV9.cpp:107-116, source pcsx2/DEV9/DEV9.cpp:152-167"
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note: "Opened from the working directory when DEV9 starts and mapped over 64 bytes. A compiled-in image stands in when the file is missing."
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- name: "flash.dat"
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load_from: working_directory
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required: false
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hle_fallback: true
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size: 8650752
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description: "DEV9 flash memory with ECC"
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source_ref: "source pcsx2/DEV9/flash.cpp:21-28, source pcsx2/DEV9/flash.cpp:74-101"
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note: "Read from the working directory when DEV9 starts. The flash is blank (0xFF) when the file is missing."
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