DS game only 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.
Reading the binary
The overlay ships on the cart at file ID 166 as plaintext (no compression wrapper).
At load time the engine reads the overlay table entry at ROM offset
0x8DE00 + 166 * 0x20, allocates the destination
RAM region at 0x021fb3c0, decompresses
the body in-place (if compressed), and resolves any external
relocations.
To inspect this overlay outside the running game, decompress
overlay/overlay_166.bin with
ndspy.codeCompression.decompress() (Python ndspy library)
and load the resulting plaintext into Ghidra or
IDA at base address 0x021fb3c0. The
raw Ghidra auto-analysis dump used to populate this page lives at
notes/overlay_knowledgebase/raw/ov166.json;
the per-overlay descriptive markdown is at
notes/overlay_knowledgebase/ov166.md.
Embedded strings
No UTF-16 LE strings are embedded directly in this overlay's binary. Any text it displays at runtime comes from a container file loaded via the content cache.
Container references
This overlay references no container files β it is pure code (or reads only from globals shared with the persistent ARM9 binary).
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 0 functions
| # | Address | Size | Calls | Strings | Role hint |
|---|
Open questions & conflicts
Open questions / unknowns
- Auto-analysis identified 0 functions covering 0 of 384 overlay bytes.
- **Zero functions identified.** Likely cause: overlay is mostly data, or Ghidra's auto-detect missed the entry points. Manual inspection needed.
- Function names are auto-generated `FUN_<addr>`. Manual renaming based on call-graph + string-ref analysis is a follow-up.
- BSS size is 0 bytes; Ghidra-imported overlay does not include BSS so any references into the BSS range appear as unresolved.
Conflicts with the prior shallow pass
- No major conflicts detected with prior-pass `overlay_role_final.json` record.
Source
- Per-overlay markdown:
notes/overlay_knowledgebase/ov166.md - Raw Ghidra dump:
notes/overlay_knowledgebase/raw/ov166.json - Overlay-system explainer: overlays system
- Plain-English overlay primer: overlay knowledgebase