feat: re-profile 30 emulators, beetle to parallel_n64

source-verified: mesen FdsBios.bin→alias, MesenDB.txt phantom (embedded).
mupen64plus 64DD_IPL.bin→IPL.n64 (code path fix). neocd 000-lo.lo/ng-lo.rom
phantoms (algorithmically generated). new profiles: mesen-s, mupen64plus
next develop/gles2/gles3. regenerate database.

emulators/melonds_ds.yml

@@ -1,58 +1,83 @@
-# melonDS DS — Nintendo DS/DSi (libretro, newer fork)
-# ref: JesseTG/melonds-ds, docs.libretro.com/library/melonds_ds
-# Prefers files in "melonDS DS/" subfolder. DS mode has HLE fallback.
-# DSi mode requires real BIOS + NAND dump.
-#
-# doc vs source: docs use bios7.bin/bios9.bin (NDS) and dsi_bios7.bin/
-# dsi_bios9.bin (DSi). The older melonDS core uses the same names.
-# Repo stores NDS ARM7/ARM9 as biosdsi7.bin/biosdsi9.bin (DSi dumps that
-# also work for NDS). The md5 in docs (df692a80/a392174e) are for the
-# smaller NDS-only dumps, different from the DSi dumps in the repo.
 emulator: melonDS DS
 type: libretro
+core_classification: community_fork
 cores: [melonds_ds]
 source: "https://github.com/JesseTG/melonds-ds"
+upstream: "https://github.com/melonDS-emu/melonDS"
+profiled_date: "2026-03-24"
+core_version: "1.2.0"
+display_name: "Nintendo - DS (melonDS DS)"
 systems:
   - nintendo-ds
   - nintendo-dsi
 
 notes: |
-  Newer fork of melonDS for libretro with DSi support.
-  DS BIOS files are optional (built-in FreeBIOS used as fallback).
-  DSi mode requires all four DSi-specific files.
-  Core searches "melonDS DS/" subfolder first, then system root.
+  Libretro-specific remake using melonDS as a statically-linked library.
+  DS mode has FreeBIOS/generated firmware fallback; DSi mode requires all
+  native files. Core searches "melonDS DS/" subfolder first, then system root.
+  In DSi mode, NDS BIOS (bios7/bios9) are also required alongside DSi BIOS.
+  Firmware and NAND filenames are user-selectable via core options.
 
 files:
-  # DS mode (optional, FreeBIOS fallback)
+  # --- Nintendo DS (NTR) ---
   - name: bios7.bin
     system: nintendo-ds
+    description: "ARM7 BIOS"
     required: false
     hle_fallback: true
-    md5: df692a80a5b1bc90728bc3dfc76cd948
-    note: "NDS ARM7 BIOS"
+    size: 16384
+    validation: [size]
+    crc32: "0x1280f0d5"
+    source_ref: "src/libretro/config/console.cpp:219, melonDS:src/MemConstants.h:31,36"
+
   - name: bios9.bin
     system: nintendo-ds
+    description: "ARM9 BIOS"
     required: false
     hle_fallback: true
-    md5: a392174eb3e572fed6447e956bde4b25
-    note: "NDS ARM9 BIOS"
+    size: 4096
+    validation: [size]
+    crc32: "0x2ab23573"
+    source_ref: "src/libretro/config/console.cpp:220, melonDS:src/MemConstants.h:30,37"
+
   - name: firmware.bin
     system: nintendo-ds
+    description: "NDS firmware image"
     required: false
     hle_fallback: true
-    sha1: 8497afdd16af92d6887b71582846c40514e9039f
-    md5: 145eaef5bd3037cbc247c213bb3da1b3
-    size: 262144
-  # DSi mode (required)
+    source_ref: "src/libretro/config/console.cpp:184"
+    notes: "Filename configurable via core options; generated firmware used as fallback"
+
+  # --- Nintendo DSi (TWL) ---
+  - name: dsi_bios7.bin
+    system: nintendo-dsi
+    description: "DSi ARM7 BIOS"
+    required: true
+    size: 65536
+    validation: [size]
+    crc32: "0x4316CC42"
+    source_ref: "src/libretro/config/console.cpp:333, melonDS:src/MemConstants.h:32,44"
+    notes: "Contains eMMC key-Y at offset 0x8308 for NAND init"
+
+  - name: dsi_bios9.bin
+    system: nintendo-dsi
+    description: "DSi ARM9 BIOS"
+    required: true
+    size: 65536
+    validation: [size]
+    crc32: "0xBAE84F6C"
+    source_ref: "src/libretro/config/console.cpp:338, melonDS:src/MemConstants.h:32,45"
+
   - name: dsi_firmware.bin
     system: nintendo-dsi
+    description: "DSi firmware image"
     required: true
-    sha1: d2a5af338f09c5cbdd5d7628db5b9c075c69b616
-    md5: 8daa89fd280b3e5ec79fbab73ad6684e
-    size: 131072
+    source_ref: "src/libretro/config/console.cpp:352-358"
+    notes: "Filename configurable via core options; must have DSi firmware header"
+
   - name: dsi_nand.bin
     system: nintendo-dsi
+    description: "DSi NAND dump"
     required: true
-    sha1: b48f44194fe918aaaec5298861479512b581d661
-    md5: dfafb1908da8f527df7a372e649b50be
-    size: 251658304
+    source_ref: "src/libretro/config/console.cpp:378"
+    notes: "Filename configurable via core options; 240MB or 245.5MB with optional no$cash footer"