refactor: remove false aliases from pcsx2 and melonds profiles

aliases must be same-SHA1 alternative names, not distinct files.
pcsx2: 164 different BIOS dumps are separate DB entries, not aliases.
melonds: 6 regional NAND dumps are separate DB entries, not aliases.
also cleans pcsx2 non-standard fields, fixes display_name.
This commit is contained in:
Abdessamad Derraz
2026-03-30 12:37:32 +02:00
parent a8430940f9
commit 692484d32d
2 changed files with 53 additions and 200 deletions

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@@ -77,7 +77,6 @@ files:
source_ref: "src/SPI.cpp:197-211, src/frontend/Util_ROM.cpp:201-217" source_ref: "src/SPI.cpp:197-211, src/frontend/Util_ROM.cpp:201-217"
- name: dsi_nand.bin - name: dsi_nand.bin
aliases: [DSi_Nand_USA.bin, DSi_Nand_EUR.bin, DSi_Nand_JPN.bin, DSi_Nand_AUS.bin, DSi_Nand_CHN.bin, DSi_Nand_KOR.bin]
system: nintendo-dsi system: nintendo-dsi
description: "DSi NAND dump" description: "DSi NAND dump"
required: true required: true

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@@ -1,219 +1,73 @@
# PCSX2 emulator BIOS profile
# Generated from source analysis of https://github.com/PCSX2/pcsx2
# Commit analyzed: HEAD as of 2026-03-17
emulator: PCSX2 emulator: PCSX2
type: standalone type: standalone
core_classification: official_port
source: "https://github.com/PCSX2/pcsx2" source: "https://github.com/PCSX2/pcsx2"
logo: "https://raw.githubusercontent.com/PCSX2/pcsx2/master/pcsx2-qt/resources/icons/PCSX2logo.svg" upstream: "https://github.com/PCSX2/pcsx2"
profiled_date: "2026-03-18" cores:
- pcsx2
profiled_date: "2026-03-30"
core_version: "Git" core_version: "Git"
display_name: "Sony - PlayStation 2 (LRPS2)" display_name: "Sony - PlayStation 2 (PCSX2)"
systems: [sony-playstation-2] systems: [sony-playstation-2]
bios_directory: "bios/" notes: |
bios_detection: "romdir" # scans romdir structure inside binary, looks for RESET/ROMVER/EXTINFO entries Filename-agnostic BIOS detection. Scans bios/ for any file between 4-8 MB
bios_selection: "automatic" # scans all files in bios dir matching 4-8 MB size, validates via romdir with valid romdir structure (RESET + ROMVER entries). No hash validation.
Companion files (.rom1, .rom2, .nvm, .mec) derive paths from selected BIOS.
validation: ROM1 (DVD player) and ROM2 (Chinese extension) silently skipped if missing.
method: "romdir_parse" NVM and MEC auto-created with defaults if missing.
min_size: 4194304 # 4 MB (MIN_BIOS_SIZE = 4 * _1mb)
max_size: 8388608 # 8 MB (MAX_BIOS_SIZE = 8 * _1mb)
required_entries: ["RESET", "ROMVER"]
optional_entries: ["EXTINFO"]
note: "Any file in bios/ between 4-8 MB with valid romdir containing RESET+ROMVER is accepted"
regions:
J: {zone: "Japan", id: 0}
A: {zone: "USA", id: 1}
E: {zone: "Europe", id: 2}
H: {zone: "Asia", id: 4}
C: {zone: "China", id: 6}
T: {zone: "T10K/COH-H", id: 8}
X: {zone: "Test", id: 9}
P: {zone: "Free", id: 10}
files: files:
# -- Main BIOS binary (required) -- - name: ps2-0230a-20080220.bin
- name: "<user-selected>.bin"
pattern: "*"
required: true required: true
size_range: "4MB-8MB" min_size: 4194304
source_ref: "pcsx2/ps2/BiosTools.cpp:258-282" max_size: 8388608
note: > validation: [size]
PCSX2 does not mandate a specific filename. It scans the entire bios/ directory source_ref: "pcsx2/ps2/BiosTools.cpp:258-362"
for any file between 4-8 MB that contains a valid romdir structure (RESET + ROMVER entries). note: "Accepts any file 4-8 MB with valid romdir (RESET + ROMVER). Naming convention ps2-VVVVr-YYYYMMDD.bin (version, region, date)."
Common filenames follow the SCPH-XXXXX_BIOS_VYYY_REGION_ZZZ.BIN convention but this is
not enforced. The file is loaded into the 4 MB ROM region of EE memory.
# -- ROM1 (optional, DVD player) -- - name: rom1.bin
- name: "<biosname>.rom1"
pattern: "{biosname}.rom1 or {biosbase}.rom1"
required: false required: false
max_size: 4194304 # 4 MB (Ps2MemSize::Rom1) max_size: 4194304
source_ref: "pcsx2/ps2/BiosTools.cpp:214-241" source_ref: "pcsx2/ps2/BiosTools.cpp:214-241,366"
note: > note: "DVD player ROM. Tries {biospath}.rom1 then {biosbase}.rom1. Silently skipped if missing."
DVD player ROM. Loaded via LoadExtraRom("rom1"). PCSX2 tries two naming patterns:
1) Full bios path + ".rom1" appended (e.g. scph70004.bin.rom1)
2) Bios path with extension replaced (e.g. scph70004.rom1)
Mapped to EE memory at ROM1 region (0x1FC00000 + 4MB offset).
Contains DVD player and region detection data (DVDID).
# -- ROM2 (optional, Chinese ROM extension) -- - name: ROM2.BIN
- name: "<biosname>.rom2"
pattern: "{biosname}.rom2 or {biosbase}.rom2"
required: false required: false
max_size: 4194304 # 4 MB (Ps2MemSize::Rom2) max_size: 4194304
source_ref: "pcsx2/ps2/BiosTools.cpp:214-241" source_ref: "pcsx2/ps2/BiosTools.cpp:214-241,367"
note: > note: "Chinese ROM extension. Same naming convention as rom1. Only present on Chinese region consoles."
Chinese ROM extension. Loaded via LoadExtraRom("rom2"). Same naming convention
as rom1: tries appended extension first, then replaced extension.
Only present on Chinese region consoles.
# -- NVM / NVRAM (optional, auto-created) -- - name: EROM.BIN
- name: "<biosname>.nvm" required: false
pattern: "{biosbase}.nvm" source_ref: "pcsx2/ps2/BiosTools.cpp"
note: "Extended ROM. Present in some BIOS dumps but not loaded by PCSX2 code via LoadExtraRom."
path: null
- name: eeprom.dat
required: false required: false
hle_fallback: true hle_fallback: true
size: 1024 # NVRAM_SIZE = 1024 bytes size: 64
source_ref: "pcsx2/CDVD/CDVD.cpp:160-238"
note: >
EEPROM / NVRAM data. Path derived from BiosPath with extension replaced to ".nvm"
(cdvdGetNVRAMPath). Contains console configuration: language, timezone, iLink ID,
region parameters, OSD settings. Auto-created with defaults if missing.
Two NVM layouts exist: v0.00+ (biosVer 0x000) and v1.70+ (biosVer 0x146).
# -- MEC file (optional, auto-created) --
- name: "<biosname>.mec"
pattern: "{biosbase}.mec"
required: false
hle_fallback: true
size: 4 # u32 s_mecha_version
source_ref: "pcsx2/CDVD/CDVD.cpp:190-204"
note: >
Mechacon (mechanism controller) version file. 4 bytes containing the mecha version
as a u32 value. Auto-created with DEFAULT_MECHA_VERSION (0x00020603) if missing.
Path derived from BiosPath with extension replaced to ".mec".
# -- IRX override (optional, advanced) --
- name: "<custom>.irx"
pattern: "*.irx"
required: false
source_ref: "pcsx2/ps2/BiosTools.cpp:243-256,384-385"
note: >
Custom IOP Reboot eXecutable module. Loaded into ROM at offset 0x3C0000 if
EmuConfig.CurrentIRX is set (path length > 3). Injected at IOP reset (PC=0x1630).
Used for debugging/development, not needed for normal operation.
# -- DEV9 EEPROM (optional, network adapter) --
- name: "eeprom.dat"
required: false
hle_fallback: true
size: 64 # 64 bytes, mmap'd
source_ref: "pcsx2/DEV9/DEV9.cpp:110-160" source_ref: "pcsx2/DEV9/DEV9.cpp:110-160"
note: > note: "DEV9 network adapter EEPROM. Falls back to built-in defaults if missing."
DEV9 (network adapter / HDD expansion bay) EEPROM data. Fixed filename "eeprom.dat"
opened from working directory. Contains network adapter configuration.
Falls back to built-in defaults if file not found. Only relevant when using
DEV9 features (online play, HDD).
common_bios_filenames: - name: GameIndex.yaml
# Japan path: pcsx2/resources/GameIndex.yaml
- "SCPH-10000_BIOS_V1_JAP_100.BIN" required: false
- "SCPH-15000_BIOS_V3_JAP_120.BIN" mode: libretro
- "SCPH-30000_BIOS_V4_JAP_150.BIN" source_ref: "pcsx2/GameDatabase.cpp:48,880"
- "SCPH-30001R_BIOS_V7_JAP_160.BIN" note: "Game compatibility database. OSD warning if missing."
- "SCPH-30004R_BIOS_V7_JAP_160.BIN"
- "SCPH-35000_BIOS_V5_JAP_160.BIN"
- "SCPH-50000_BIOS_V9_JAP_170.BIN"
- "SCPH-50004_BIOS_V9_JAP_170.BIN"
- "SCPH-70000_BIOS_V12_JAP_200.BIN"
- "SCPH-75000_BIOS_V14_JAP_220.BIN"
- "SCPH-77000_BIOS_V14_JAP_220.BIN"
- "SCPH-90000_BIOS_V18_JAP_230.BIN"
# USA
- "SCPH-30001_BIOS_V4_USA_150.BIN"
- "SCPH-39001_BIOS_V6_USA_160.BIN"
- "SCPH-50001_BIOS_V9_USA_170.BIN"
- "SCPH-50003_BIOS_V9_USA_170.BIN"
- "SCPH-70002_BIOS_V12_USA_200.BIN"
- "SCPH-70004_BIOS_V12_USA_200.BIN"
- "SCPH-70012_BIOS_V12_USA_200.BIN"
- "SCPH-75001_BIOS_V14_USA_220.BIN"
- "SCPH-77001_BIOS_V14_USA_220.BIN"
- "SCPH-90001_BIOS_V18_USA_230.BIN"
# Europe
- "SCPH-30002_BIOS_V4_EUR_150.BIN"
- "SCPH-30003_BIOS_V4_EUR_150.BIN"
- "SCPH-30004_BIOS_V4_EUR_150.BIN"
- "SCPH-39002_BIOS_V6_EUR_160.BIN"
- "SCPH-39003_BIOS_V6_EUR_160.BIN"
- "SCPH-39004_BIOS_V6_EUR_160.BIN"
- "SCPH-50002_BIOS_V9_EUR_170.BIN"
- "SCPH-50004_BIOS_V9_EUR_170.BIN"
- "SCPH-70002_BIOS_V12_EUR_200.BIN"
- "SCPH-70003_BIOS_V12_EUR_200.BIN"
- "SCPH-70004_BIOS_V12_EUR_200.BIN"
- "SCPH-70008_BIOS_V12_EUR_200.BIN"
- "SCPH-75002_BIOS_V14_EUR_220.BIN"
- "SCPH-75003_BIOS_V14_EUR_220.BIN"
- "SCPH-75004_BIOS_V14_EUR_220.BIN"
- "SCPH-77002_BIOS_V14_EUR_220.BIN"
- "SCPH-77003_BIOS_V14_EUR_220.BIN"
- "SCPH-77004_BIOS_V14_EUR_220.BIN"
- "SCPH-90002_BIOS_V18_EUR_230.BIN"
- "SCPH-90003_BIOS_V18_EUR_230.BIN"
- "SCPH-90004_BIOS_V18_EUR_230.BIN"
# Asia
- "SCPH-50009_BIOS_V9_HK_170.BIN"
- "SCPH-70005_BIOS_V12_HK_200.BIN"
- "SCPH-70006_BIOS_V12_HK_200.BIN"
- "SCPH-70008_BIOS_V12_HK_200.BIN"
# China
- "SCPH-50009_BIOS_V9_CHN_170.BIN"
- "SCPH-70006_BIOS_V12_CHN_200.BIN"
memory_layout: - name: cheats_ws.zip
ROM: {offset: "0x1FC00000", size: "4 MB", purpose: "Main BIOS binary"} path: pcsx2/resources/cheats_ws.zip
ROM1: {offset: "ROM + 4MB", size: "4 MB", purpose: "DVD player"} required: false
ROM2: {offset: "ROM + 8MB", size: "4 MB", purpose: "Chinese ROM extension"} mode: libretro
source_ref: "pcsx2/VMManager.cpp:340-353"
note: "Widescreen patches archive."
nvm_layout: - name: cheats_ni.zip
format_0: path: pcsx2/resources/cheats_ni.zip
applies_to: "BIOS v0.00+" required: false
biosVer: 0x000 mode: libretro
config0: 0x280 source_ref: "pcsx2/VMManager.cpp:375-388"
config1: 0x300 note: "No-interlacing patches archive."
config2: 0x200
consoleId: 0x1C8
ilinkId: 0x1C0
modelNum: 0x1A0
regparams: 0x180
mac: 0x198
format_1:
applies_to: "BIOS v1.70+"
biosVer: 0x146
config0: 0x270
config1: 0x2B0
config2: 0x200
consoleId: 0x1F0
ilinkId: 0x1E0
modelNum: 0x1B0
regparams: 0x180
mac: 0x198
notes: |
PCSX2 is filename-agnostic for the main BIOS. Detection relies on romdir structure
parsing inside the binary itself, not on filename or extension. Any file between 4-8 MB
with a valid romdir (containing at least RESET and ROMVER entries) is accepted.
The ROMVER entry encodes: version (2+2 digits), region letter, console/devel flag,
build date (YYYYMMDD), and is used to determine the BIOS description and region.
Companion files (.nvm, .mec) are auto-created with sane defaults if missing.
ROM1/ROM2 are silently skipped if not found - only the main BIOS binary is strictly required.
PCSX2 no longer ships as a libretro core in official builds. The standalone emulator
is the primary distribution channel.
Devel console BIOSes (< ~2.3 MB) lack the OSD and are handled with NoOSD=true flag.