ov111 β€” overlay detail

DS game only γ¨γ‚“γŒγ‚Šγƒœγ‚¦γ‚·γ¨γŠγ—γ‚ƒγ‚Œγͺまほう぀かい The field guide documents the DS game's internals.

containers: inp_bg, inp_objcell, inp_objchara (+5 more)

ov111 input_text_2d_ui

containers: inp_bg, inp_objcell, inp_objchara (+5 more)

Header

Numeric metadata for this overlay as read from the overlay table at ROM offset 0x8DE00 (per-entry stride 32 bytes). Function counts, data-item counts, and the call-graph fan-out are from a Ghidra 11.3.1 headless auto-analysis pass.

Overlay ID 111
File ID 111
RAM load address 0x0215e4a0
RAM size 7,072 bytes (0x1ba0)
BSS size 0 bytes
On-disk compressed size 6,108 bytes
Compression flag 0x1 (BLZ-compressed)
Functions 22
External calls 51
Jump tables 3
Data items 147
Code coverage 56% (3,986 of 7,072 bytes)

Reading the binary

The overlay ships on the cart at file ID 111 under the BLZ code-LZ compression wrapper (the same backward-LZ scheme Nintendo uses for executable ARM9 code). At load time the engine reads the overlay table entry at ROM offset 0x8DE00 + 111 * 0x20, allocates the destination RAM region at 0x0215e4a0, decompresses the body in-place (if compressed), and resolves any external relocations.

To inspect this overlay outside the running game, decompress overlay/overlay_111.bin with ndspy.codeCompression.decompress() (Python ndspy library) and load the resulting plaintext into Ghidra or IDA at base address 0x0215e4a0. The raw Ghidra auto-analysis dump used to populate this page lives at notes/overlay_knowledgebase/raw/ov111.json; the per-overlay descriptive markdown is at notes/overlay_knowledgebase/ov111.md.

Embedded strings

1 UTF-16 LE string live inside this overlay's compiled binary. These addresses are absolute (inside the overlay's RAM image after load). The text is stored as little-endian UTF-16 code units, NUL-terminated.

0x0215e73b `ζ—‘ι“‘ι‘ŽθΉŠγ‹`

Container references

Distinct container basenames referenced by this overlay. Each is loaded via the content cache by passing the basename string to a lookup that resolves it to a file ID in the ROM's FAT. The path column shows the file's location in the clean extract, where resolved.

Unresolved

These container basenames appeared in the overlay's string table but no file of that name was found in the clean extract. Most are false-positive ASCII matches (function names, register maps, fragments of other strings); a few may be containers that the overlay names but never actually opens. Listed for completeness.

Function list

Functions Ghidra auto-identified inside this overlay's RAM range. Names prefixed FUN_ are auto-generated from the function's entry address; size is in bytes; the "calls" column counts both intra-overlay branches and external ARM9 call targets. The "strings" column counts how many UTF-16 LE strings each function references.

Show all 22 functions
# Address Size Calls Strings Role hint
1 0x0215e594 8 0 0 trampoline / small helper
2 0x0215ea18 38 5 0 trampoline / small helper
3 0x0215ed60 22 2 0 trampoline / small helper
4 0x0215edb8 694 28 2 refs: inp_objcell \| inp_objcell
5 0x0215f098 170 5 0 code
6 0x0215f14c 216 13 0 code
7 0x0215f230 222 4 0 code
8 0x0215f314 340 4 0 code
9 0x0215f48c 184 8 0 code
10 0x0215f548 212 13 0 code
11 0x0215f630 86 8 0 code
12 0x0215f68c 10 0 0 trampoline / small helper
13 0x0215f6a0 10 0 0 trampoline / small helper
14 0x0215f6b4 26 2 0 trampoline / small helper
15 0x0215f6d4 236 14 0 code
16 0x0215f7d0 62 5 0 code
17 0x0215f814 132 11 0 code
18 0x0215f8a8 250 14 2 refs: inp_bg \| inp_bg
19 0x0215f9b4 96 9 0 code
20 0x0215fa18 886 43 0 high-fan-out (likely dispatcher / setup)
21 0x0215fdc4 74 1 4 refs: inp_objcell \| inp_objcell \| inp_objcell \| inp_objchara
22 0x0215fe34 12 1 0 trampoline / small helper

Open questions & conflicts

Open questions / unknowns

Conflicts with the prior shallow pass

Source