docs: note the lower-case rom names bbkemu reads

Upstream 6641863 also accepts 8.bin, E.bin and e.bin, and the Emscripten build looks beside the content (crates/bbkemu-libretro/src/lib.rs:191-218). Same two files, same model directory.

emulators/bbkemu.yml

@@ -3,8 +3,8 @@ type: standalone + libretro
 core_classification: pure_libretro
 source: "https://github.com/AloysHF/BBKEmu"
 upstream: "https://github.com/AloysHF/BBKEmu"
-profiled_date: "2026-09-03"
-source_commit: "aef61bd59d5eb65780ace33e288086dd98f709c5"
+profiled_date: "2026-10-26"
+source_commit: "6641863f6ec59a74635753766e3f9d34adf92b05"
 core_version: "0.1.0"
 display_name: "BBK - Electronic Dictionary (BBKEmu)"
 cores:
@@ -22,11 +22,14 @@ notes: |
   Two ROM images are read from the system directory, in one subdirectory
   per model: {system}/BBKEmu/<model>/8.BIN, the font ROM mapped at
   physical 0x800000-0x9FFFFF, and E.BIN, the OS ROM mapped at
-  0xE00000-0xFFFFFF (crates/bbkemu-libretro/src/lib.rs:187-206,
+  0xE00000-0xFFFFFF (crates/bbkemu-libretro/src/lib.rs:186-219,
   crates/bbkemu-core/src/memory.rs:377-398). The libretro core always
-  loads content as the A4980 model (crates/bbkemu-libretro/src/lib.rs:470-471),
-  so only BBKEmu/A4980/ is ever read from RetroArch. Both reads are
-  std::fs::read guarded by `if let Ok`: a missing file is skipped without
+  loads content as the A4980 model (crates/bbkemu-libretro/src/lib.rs:491-492),
+  so only BBKEmu/A4980/ is ever read from RetroArch. The core also accepts
+  8.bin, and E.bin or e.bin, when the upper-case name is absent. The
+  Emscripten build used by EmulatorJS looks in the folder of the content
+  and its BBKEmu/<model>/ subfolder as well. Both reads are std::fs::read
+  results taken only when they succeed: a missing file is skipped without
   any message to the frontend. The image is copied into a 2 MiB
   zero-filled buffer (crates/bbkemu-core/src/memory.rs:197-209), and nothing
   checks its size or contents.
@@ -46,7 +49,7 @@ notes: |
   subdirectory (crates/bbkemu/src/main.rs:108-117, crates/bbkemu/src/main.rs:146-170).
   The A4988 model differs by its flash save-area offset and key layout
   (crates/bbkemu-core/src/emulator.rs:148-153,
-  crates/bbkemu-libretro/src/lib.rs:619-628).
+  crates/bbkemu-libretro/src/lib.rs:640-649).
 
   During init the OS maps its own bank at logical bank D: 0xEA8 for the
   A4980 OS, 0xE88 for the A4988 OS (crates/bbkemu-core/src/model.rs:11-13).
@@ -54,9 +57,9 @@ notes: |
   (crates/bbkemu-core/src/model.rs:37-49) has no caller. The
   include_bytes! font in crates/bbkemu-core/src/font.rs is not declared in
   lib.rs and is not compiled. Content arrives through the frontend buffer
-  (need_fullpath = false, crates/bbkemu-libretro/src/lib.rs:416). Save RAM
+  (need_fullpath = false, crates/bbkemu-libretro/src/lib.rs:429). Save RAM
   is the first 0x14000 bytes of the emulated flash
-  (crates/bbkemu-libretro/src/lib.rs:840-842).
+  (crates/bbkemu-libretro/src/lib.rs:861-863).
 
 files:
   - name: 8.BIN
@@ -67,11 +70,11 @@ files:
     required: true
     description: "BBK A-series font ROM"
     note: >-
-      Read whole from {system}/BBKEmu/A4980/8.BIN into the 2 MiB window at
-      physical 0x800000. A missing file is skipped silently, and the window
+      Read whole from {system}/BBKEmu/A4980/8.BIN, or 8.bin, into the 2 MiB
+      window at physical 0x800000. A missing file is skipped silently, and the window
       then reads as 0x00 and text drawn through the OS is blank. No size
       or hash check. Size is the window the image fills.
-    source_ref: "crates/bbkemu-libretro/src/lib.rs:187-199, crates/bbkemu-libretro/src/lib.rs:470-471, crates/bbkemu-core/src/memory.rs:8, crates/bbkemu-core/src/memory.rs:197-202, crates/bbkemu-core/src/memory.rs:384-390, crates/bbkemu/src/main.rs:147-158"
+    source_ref: "crates/bbkemu-libretro/src/lib.rs:191-215, crates/bbkemu-libretro/src/lib.rs:491-492, crates/bbkemu-core/src/memory.rs:8, crates/bbkemu-core/src/memory.rs:197-202, crates/bbkemu-core/src/memory.rs:384-390, crates/bbkemu/src/main.rs:147-158"
 
   - name: E.BIN
     path: BBKEmu/A4980/E.BIN
@@ -81,12 +84,12 @@ files:
     required: true
     description: "BBK A-series OS ROM"
     note: >-
-      Read whole from {system}/BBKEmu/A4980/E.BIN into the 2 MiB window at
-      physical 0xE00000. The last 256 bytes also serve as the interrupt
+      Read whole from {system}/BBKEmu/A4980/E.BIN, or E.bin or e.bin, into the
+      2 MiB window at physical 0xE00000. The last 256 bytes also serve as the interrupt
       vector page at 0x0300. A missing file is skipped silently, the OS
       init loop times out after 10 million cycles and no game runs. No
       size or hash check. Size is the window the image fills.
-    source_ref: "crates/bbkemu-libretro/src/lib.rs:187-193, crates/bbkemu-libretro/src/lib.rs:201-206, crates/bbkemu-libretro/src/lib.rs:470-471, crates/bbkemu-core/src/memory.rs:9, crates/bbkemu-core/src/memory.rs:204-209, crates/bbkemu-core/src/memory.rs:224-226, crates/bbkemu-core/src/memory.rs:391-397, crates/bbkemu-core/src/emulator.rs:231-252, crates/bbkemu/src/main.rs:159-170"
+    source_ref: "crates/bbkemu-libretro/src/lib.rs:191-212, crates/bbkemu-libretro/src/lib.rs:216-218, crates/bbkemu-libretro/src/lib.rs:491-492, crates/bbkemu-core/src/memory.rs:9, crates/bbkemu-core/src/memory.rs:204-209, crates/bbkemu-core/src/memory.rs:224-226, crates/bbkemu-core/src/memory.rs:391-397, crates/bbkemu-core/src/emulator.rs:231-252, crates/bbkemu/src/main.rs:159-170"
 
   - name: 8.BIN
     standalone_path: system/BBKEmu/A4988/8.BIN