feat: profile jumpnbump, kronos, lowresnx, lutro, m2000

add core_classification and upstream to all five profiles. kronos:
add ROM cartridge files (mpr-18811-mx.ic1, mpr-19367-mx.ic1), add
archive: field to STV blobs, remove unverified MD5 hashes, fix
cores list (remove yabause_libretro). jumpnbump: fix incorrect
note about embedded data. lowresnx, lutro, m2000: add missing
classification fields.

database.json

@@ -1,5 +1,5 @@
 {
-  "generated_at": "2026-03-22T11:56:36Z",
+  "generated_at": "2026-03-22T13:37:37Z",
   "total_files": 6733,
   "total_size": 5288642642,
   "files": {

emulators/jumpnbump.yml

@@ -1,14 +1,25 @@
 emulator: Jump 'n Bump
 type: game
+core_classification: community_fork
 source: "https://github.com/libretro/jumpnbump-libretro"
-profiled_date: "2026-03-18"
+upstream: "https://github.com/fabiangreffrath/jumpnbump"
+profiled_date: "2026-03-22"
 core_version: "v0.1"
 display_name: "Jump 'n Bump"
 cores: [jumpnbump]
 systems: []
-files: []
+
-notes: >
+notes: |
   Libretro port of Jump 'n Bump, a multiplayer bunny-stomping platformer
-  originally by Brainchild Design (1998). Released as freeware.
+  originally by Brainchild Design (1998). Released as freeware under GPL.
-  Game data (sprites, levels, sounds) is compiled into the binary.
+
-  No content file, BIOS, or system directory files required.
+  The core loads a .dat archive file as content via retro_load_game().
+  All game resources (sprites, sounds, levels, fonts, music) are packed
+  inside the .dat file. No system directory files, BIOS, or firmware
+  required. The .dat file is built from the data/ directory by the
+  jnbpack tool in the upstream repo.
+
+  Extra levels are available from brainchilddesign.com as additional
+  .dat files.
+
+files: []

emulators/kronos.yml

@@ -1,93 +1,80 @@
 emulator: Kronos
 type: libretro
-cores:
+core_classification: official_port
-  - kronos_libretro
+source: "https://github.com/libretro/yabause"
-  - yabause_libretro
+upstream: "https://github.com/FCare/Kronos"
-source: "https://github.com/FCare/Kronos"
+profiled_date: "2026-03-22"
-profiled_date: "2026-03-18"
 core_version: "v2.6.0"
 display_name: "Sega - Saturn/ST-V (Kronos)"
+cores:
+  - kronos
 systems:
   - sega-saturn
   - sega-stv
 
 notes: |
-  Kronos is a Sega Saturn and ST-V arcade emulator forked from Yabause.
+  Kronos is a Sega Saturn and ST-V arcade emulator by FCare, forked from
-  The libretro repo at libretro/yabause ships the older "Yabause" core
+  Yabause. Requires OpenGL 4.3 compute shaders.
-  (yabause_libretro) which handles Saturn only and has no STV support.
 
-  Saturn BIOS search order (Kronos):
+  Saturn BIOS search order:
     1. {system}/kronos/saturn_bios.bin
     2. {system}/saturn_bios.bin
     3. {system}/sega_101.bin
     4. {system}/mpr-17933.bin
-  First file found wins. Real BIOS required, HLE is deprecated and causes
+  First file found wins. Real BIOS required (HLE deprecated, only available
-  issues. Multi-disc (m3u) also forces real BIOS.
+  via kronos_force_hle_bios core option for debugging).
 
-  Saturn BIOS search order (YabaSanshiro / Yabause):
+  ST-V BIOS: {system}/kronos/stvbios.zip or {system}/stvbios.zip
-    1. {system}/saturn_bios.bin
+  MAME-style ZIP containing region-specific EPROMs. Kronos picks the best
-    2. {system}/sega_101.bin
+  match by game region and kronos_stv_favorite_region core option (EU/US/JP/TW).
-    3. {system}/mpr-17933.bin
-  Falls back to HLE if none found, but HLE is not recommended.
 
-  ST-V BIOS (Kronos only):
+  ROM cartridges for KOF95 and Ultraman are auto-detected via game database
-    {system}/kronos/stvbios.zip or {system}/stvbios.zip
+  (db.c) and loaded from system_dir when the corresponding game is running.
-  The ZIP is a MAME-style romset containing region-specific EPROMs.
-  Kronos picks the first matching BIOS by region, with a configurable
-  "favorite region" core option (EU/US/JP/TW). The ZIP must contain
-  at least one of the BIOS blobs listed below. ST-V games are detected
-  automatically when loading a .zip file.
 
   BIOS loading: libretro.c retro_load_game() lines 1601-1727.
   STV blob table: ctrl/src/stv.c BiosList lines 112-136.
-  Region enums: ctrl/include/stv.h lines 47-52.
+  ROM cartridge DB: utils/src/db.c lines 43-45.
 
 files:
   # -----------------------------------------------------------
-  # Saturn BIOS - generic (any region accepted)
+  # Saturn BIOS - primary (any region)
   # -----------------------------------------------------------
   - name: "saturn_bios.bin"
     system: sega-saturn
     required: true
-    size: 524288  # 512 KB (0x80000)
+    size: 524288
-    note: "Primary Saturn BIOS. Any region. Searched first by both cores."
+    note: "Primary Saturn BIOS. Any region accepted. Searched in kronos/ subdir first."
-    source_ref: "libretro.c:1619-1623 (kronos), libretro.c:1035 (yabause)"
+    source_ref: "libretro.c:1619-1623"
 
   # -----------------------------------------------------------
-  # Saturn BIOS - Japan v1.01
+  # Saturn BIOS - Japan v1.01 (fallback)
   # -----------------------------------------------------------
   - name: "sega_101.bin"
     system: sega-saturn
     region: [japan]
     required: false
     size: 524288
-    md5: "85ec9ca47d8f6807718151cbcca8b964"
     note: "Saturn BIOS v1.01 (Japan). Fallback if saturn_bios.bin missing."
-    source_ref: "libretro.c:1627 (kronos), libretro.c:1039 (yabause)"
+    source_ref: "libretro.c:1627"
 
   # -----------------------------------------------------------
-  # Saturn BIOS - NA/EU
+  # Saturn BIOS - NA/EU (fallback)
   # -----------------------------------------------------------
   - name: "mpr-17933.bin"
     system: sega-saturn
     region: [north-america, europe]
     required: false
     size: 524288
-    md5: "3240872c70984b6cbfda1586cab68dbe"
     note: "Saturn BIOS (NA/EU). Last fallback for Saturn mode."
-    source_ref: "libretro.c:1631 (kronos), libretro.c:1043 (yabause)"
+    source_ref: "libretro.c:1631"
 
   # -----------------------------------------------------------
-  # ST-V Arcade BIOS (stvbios.zip) - Kronos only
+  # ST-V Arcade BIOS (stvbios.zip) - MAME romset
   # -----------------------------------------------------------
   - name: "stvbios.zip"
     system: sega-stv
     required: true
-    note: >
+    note: "MAME-style ZIP containing ST-V region BIOS EPROMs. Searched in kronos/ subdir first."
-      MAME-style ZIP containing ST-V region BIOS EPROMs. Required for
-      ST-V arcade games. Kronos picks the best match based on game
-      region and the stv_favorite_region core option. At least one
-      BIOS blob must be present. Searched in kronos/ subdir first.
     source_ref: "libretro.c:1608-1617, ctrl/src/stv.c:112-136"
 
   # -----------------------------------------------------------
@@ -96,146 +83,146 @@ files:
 
   # Japan
   - name: "epr-23603.ic8"
+    archive: stvbios.zip
     system: sega-stv
     region: [japan]
     required: false
     size: 524288
     crc32: "f688ae60"
-    note: "STV BIOS Japan (latest). Inside stvbios.zip."
     source_ref: "stv.c:120"
 
   - name: "epr-20091.ic8"
+    archive: stvbios.zip
     system: sega-stv
     region: [japan]
     required: false
     size: 524288
     crc32: "59ed40f4"
-    note: "STV BIOS Japan v1. Inside stvbios.zip."
     source_ref: "stv.c:121"
 
   - name: "epr-19730.ic8"
+    archive: stvbios.zip
     system: sega-stv
     region: [japan]
     required: false
     size: 524288
     crc32: "d0e0889d"
-    note: "STV BIOS Japan v2. Inside stvbios.zip."
     source_ref: "stv.c:122"
 
   - name: "epr-17951a.ic8"
+    archive: stvbios.zip
     system: sega-stv
     region: [japan]
     required: false
     size: 524288
     crc32: "2672f9d8"
-    note: "STV BIOS Japan v3. Inside stvbios.zip."
     source_ref: "stv.c:123"
 
   - name: "epr-17740a.ic8"
+    archive: stvbios.zip
     system: sega-stv
     region: [japan]
     required: false
     size: 524288
     crc32: "3e23c81f"
-    note: "STV BIOS Japan v4. Inside stvbios.zip."
     source_ref: "stv.c:124"
 
   - name: "epr-17740.ic8"
+    archive: stvbios.zip
     system: sega-stv
     region: [japan]
     required: false
     size: 524288
     crc32: "5c5aa63d"
-    note: "STV BIOS Japan v5. Inside stvbios.zip."
     source_ref: "stv.c:125"
 
   # Europe
   - name: "epr-17954a.ic8"
+    archive: stvbios.zip
     system: sega-stv
     region: [europe]
     required: false
     size: 524288
     crc32: "f7722da3"
-    note: "STV BIOS Europe. Inside stvbios.zip."
     source_ref: "stv.c:126"
 
   # USA
   - name: "epr-17952a.ic8"
+    archive: stvbios.zip
     system: sega-stv
     region: [north-america]
     required: false
     size: 524288
     crc32: "d1be2adf"
-    note: "STV BIOS USA. Inside stvbios.zip."
     source_ref: "stv.c:127"
 
   - name: "epr-17741a.ic8"
+    archive: stvbios.zip
     system: sega-stv
     region: [north-america]
     required: false
     size: 524288
     crc32: "4166c663"
-    note: "STV BIOS USA v1. Inside stvbios.zip."
     source_ref: "stv.c:128"
 
   # Taiwan
   - name: "epr-19854.ic8"
+    archive: stvbios.zip
     system: sega-stv
     region: [taiwan]
     required: false
     size: 524288
     crc32: "e09d1f60"
-    note: "STV BIOS Taiwan. Inside stvbios.zip."
     source_ref: "stv.c:129"
 
   - name: "epr-17953a.ic8"
+    archive: stvbios.zip
     system: sega-stv
     region: [taiwan]
     required: false
     size: 524288
     crc32: "a4c47570"
-    note: "STV BIOS Taiwan v1. Inside stvbios.zip."
     source_ref: "stv.c:130"
 
   - name: "epr-17742a.ic8"
+    archive: stvbios.zip
     system: sega-stv
     region: [taiwan]
     required: false
     size: 524288
     crc32: "02daf123"
-    note: "STV BIOS Taiwan v2. Inside stvbios.zip."
     source_ref: "stv.c:131"
 
   # Debug / Dev
   - name: "stv110.bin"
+    archive: stvbios.zip
     system: sega-stv
     required: false
     size: 524288
     crc32: "3dfeda92"
-    note: "STV debug BIOS. Inside stvbios.zip. Not used in normal operation."
     source_ref: "stv.c:132"
 
   - name: "stv1061.bin"
+    archive: stvbios.zip
     system: sega-stv
     required: false
     size: 524288
     crc32: "728dbca3"
-    note: "STV dev BIOS. Inside stvbios.zip. Not used in normal operation."
     source_ref: "stv.c:133"
 
-platform_details:
+  # -----------------------------------------------------------
-  saturn:
+  # ROM Cartridges (game-specific, loaded from system_dir)
-    bios_size: 524288
+  # -----------------------------------------------------------
-    bios_address: "0x00000000-0x0007FFFF"
+  - name: "mpr-18811-mx.ic1"
-    hle_available: true
+    system: sega-saturn
-    hle_recommended: false
+    required: false
-    kronos_bios_subdir: "kronos"
+    size: 2097152
-    source_ref: "sys/memory/src/memory.c:1346, libretro.c:1619-1638"
+    note: "ROM cartridge for The King of Fighters '95. Auto-detected via game DB."
-  stv:
+    source_ref: "utils/src/db.c:43-44, sys/memory/src/cs0.c:1526-1544"
-    bios_format: "MAME-style ZIP (stvbios.zip)"
+
-    blob_size: 524288
+  - name: "mpr-19367-mx.ic1"
-    blob_load_address: "0x000000"
+    system: sega-saturn
-    regions: [japan, europe, north-america, taiwan]
+    required: false
-    region_selection: "automatic per game, overridable via kronos_stv_favorite_region"
+    size: 2097152
-    kronos_bios_subdir: "kronos"
+    note: "ROM cartridge for Ultraman: Hikari no Kyojin Densetsu. Auto-detected via game DB."
-    source_ref: "ctrl/src/stv.c:112-136, ctrl/include/stv.h:47-52"
+    source_ref: "utils/src/db.c:45, sys/memory/src/cs0.c:1526-1544"

emulators/lowresnx.yml

@@ -1,7 +1,9 @@
 emulator: LowRes NX
 type: libretro
+core_classification: official_port
 source: "https://github.com/timoinutilis/lowres-nx"
-profiled_date: "2026-03-18"
+upstream: "https://github.com/timoinutilis/lowres-nx"
+profiled_date: "2026-03-22"
 core_version: "v1.2"
 display_name: "LowRes NX"
 cores:
@@ -12,34 +14,13 @@ systems:
 notes: |
   LowRes NX is a fantasy console simulating an imaginary 8/16-bit handheld.
   It runs programs written in a custom BASIC dialect, loaded as .nx files.
+  The libretro port is maintained by the upstream author (timoinutilis) in
+  the same repository.
 
-  The libretro port reads game content entirely through the retro_game_info
+  retro_load_game() copies the .nx source code into memory
-  data buffer (need_fullpath = false, libretro_main.c:317). The .nx source
+  (libretro_main.c:490) and compiles it with the built-in interpreter.
-  code is copied into memory at retro_load_game() (libretro_main.c:490)
+  The boot intro is a string constant embedded in boot_intro.c. The core
-  and compiled by the built-in interpreter.
+  never accesses the system directory. No BIOS, firmware, or external
-
+  files required.
-  The boot intro sequence is compiled from bootIntroSourceCode, a string
-  constant embedded in boot_intro.c -- not loaded from any external file.
-  The core never calls RETRO_ENVIRONMENT_GET_SYSTEM_DIRECTORY. There is
-  no code path that reads any file from the system directory. No BIOS,
-  firmware, or boot ROM is required.
-
-  The virtual machine provides a 160x128 screen, 64 colors, 256 8x8
-  sprites, 4-channel sound, d-pad + 2 buttons, and a pause button.
 
 files: []
-
-platform_details:
-  cartridge_format:
-    extensions: "nx"
-    source_ref: "libretro_main.c:318"
-    notes: |
-      .nx files contain LowRes NX BASIC source code as plain text.
-      The interpreter compiles the source at load time.
-
-  runtime:
-    source_ref: "core/ (compiled into binary)"
-    notes: |
-      The entire LowRes NX runtime (CPU emulation, video chip, audio chip,
-      BASIC compiler/interpreter, boot intro) is compiled into the core
-      binary. No external dependencies at runtime. Version 1.2.

emulators/lutro.yml

@@ -1,7 +1,8 @@
 emulator: Lutro
 type: game
+core_classification: pure_libretro
 source: "https://github.com/libretro/libretro-lutro"
-profiled_date: "2026-03-18"
+profiled_date: "2026-03-22"
 core_version: "v1"
 display_name: "Lua Engine (Lutro)"
 cores:
@@ -9,12 +10,14 @@ cores:
 systems: []
 
 notes: |
-  Lutro is a Love2D-compatible Lua game framework for libretro. It
+  Lutro is a Lua game framework for libretro implementing a subset of the
-  implements a subset of the Love2D API (love.graphics, love.audio,
+  LÖVE (Love2D) API. Runs .lutro/.lua games. Written for libretro, no
-  love.timer, love.keyboard) allowing Love2D-style games to run as
+  standalone upstream.
-  libretro cores.
 
-  No BIOS or system files required. Games are loaded as directories
+  retro_load_game() calls lutro_load(info->path) to load the game
-  containing main.lua and their assets.
+  directory or archive (libretro.c:216). The core exposes
+  love.filesystem.getAppdataDirectory to games as the system_dir
+  (filesystem.c:296) but does not load any files from it itself.
+  No BIOS, firmware, or system files required.
 
 files: []

emulators/m2000.yml

@@ -1,7 +1,9 @@
 emulator: M2000
 type: libretro
+core_classification: official_port
 source: "https://github.com/p2000t/M2000"
-profiled_date: "2026-03-18"
+upstream: "https://github.com/p2000t/M2000"
+profiled_date: "2026-03-22"
 core_version: "0.9.3"
 display_name: "Philips - P2000T (M2000)"
 cores:
@@ -10,69 +12,18 @@ systems:
   - philips-p2000t
 
 notes: |
-  M2000 is a Philips P2000T home computer emulator ported to libretro.
+  M2000 is a Philips P2000T home computer emulator by Dion Olsthoorn,
+  based on the original emulator by Marcel de Kogel (1997). The libretro
+  port is maintained by the same author in the same repository.
 
-  The libretro port does NOT require any external BIOS or ROM files.
+  All ROMs are embedded in the binary via m2000_roms.h:
-  All required ROMs are compiled directly into the core binary via
+    - monitor_rom (4096 bytes, 0x0000-0x0FFF)
-  src/libretro/m2000_roms.h:
+    - basic_nl_rom (16384 bytes, 0x1000-0x4FFF)
+    - SAA5050 teletext font (m2000_saa5050.h)
 
-    - monitor_rom (4096 bytes) - P2000T monitor ROM, loaded at 0x0000-0x0FFF
+  retro_init() calls InitP2000(monitor_rom, basic_nl_rom) which copies
-    - basic_nl_rom (16384 bytes) - Dutch BASIC cartridge ROM, loaded at 0x1000-0x4FFF
+  the embedded arrays into ROM memory (P2000.c:282-311). No system
-
+  directory access. The core accepts .cas cassette content and can boot
-  The SAA5050 teletext font is also embedded via src/libretro/m2000_saa5050.h.
+  directly into P2000T BASIC with no content loaded.
-
-  retro_init() at src/libretro/m2000_libretro.c:444 calls:
-    InitP2000(monitor_rom, basic_nl_rom)
-  which copies the embedded arrays directly into the ROM memory space
-  (src/P2000.c:282-283 and 308-311), bypassing all file I/O.
-
-  The standalone (non-libretro) version loads these as external files:
-    - P2000ROM.bin (monitor ROM, 4096 bytes)
-    - BASIC.bin (BASIC cartridge ROM, 16384 bytes)
-    - Default.fnt (SAA5050 font, 2240 bytes)
-  These files exist in the repo root for the standalone build only.
-
-  The core accepts .cas (cassette) content and can also run with no
-  content to boot directly into P2000T BASIC.
 
 files: []
-
-platform_details:
-  bios_mapping:
-    target: "20K ROM space: 0x0000-0x0FFF monitor, 0x1000-0x4FFF BASIC cartridge"
-    source_ref: "src/P2000.c:249-311, src/libretro/m2000_libretro.c:444"
-    notes: |
-      InitP2000() allocates 20K (0x5000) for ROM and 4K for VRAM.
-      The monitor ROM occupies the first 4K, the BASIC cartridge ROM
-      occupies the next 16K. In the libretro build, both are passed
-      as in-memory byte arrays from the embedded header.
-
-  embedded_roms:
-    monitor_rom:
-      source_ref: "src/libretro/m2000_roms.h:1372"
-      size: 4096
-    basic_nl_rom:
-      source_ref: "src/libretro/m2000_roms.h:1"
-      size: 16384
-    saa5050_fnt:
-      source_ref: "src/libretro/m2000_saa5050.h:1"
-      note: "Teletext character generator font, also embedded"
-
-  standalone_files:
-    note: |
-      The standalone build (allegro/SDL) loads P2000ROM.bin, BASIC.bin,
-      and Default.fnt from disk via fopen(). The libretro build skips
-      this entirely by passing embedded arrays to InitP2000().
-    files:
-      - name: "P2000ROM.bin"
-        size: 4096
-        md5: 2a9c5b22537738b66f4e619734318c15
-        sha1: 4dbb28adad30587f2ea536ba116898d459faccac
-      - name: "BASIC.bin"
-        size: 16384
-        md5: 2191811aa64f8e7f273ce0f462374728
-        sha1: fb5100436c99634a2592a10dff867f85bcff7aec
-      - name: "Default.fnt"
-        size: 2240
-        md5: e06dd73b8a149990f7722eabbe4f286f
-        sha1: dc3508afcafb38fc33e883b0caf4cf3909998a07