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 72 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 + 72 * 0x20, allocates the destination
RAM region at 0x021597a0, decompresses
the body in-place (if compressed), and resolves any external
relocations.
To inspect this overlay outside the running game, decompress
overlay/overlay_072.bin with
ndspy.codeCompression.decompress() (Python ndspy library)
and load the resulting plaintext into Ghidra or
IDA at base address 0x021597a0. The
raw Ghidra auto-analysis dump used to populate this page lives at
notes/overlay_knowledgebase/raw/ov072.json;
the per-overlay descriptive markdown is at
notes/overlay_knowledgebase/ov072.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
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.
-
setpriceβdata/2d/setprice.lzs
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.
-
2d/setprice.lzsβ no matching container found in clean extract
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 35 functions
| # | Address | Size | Calls | Strings | Role hint |
|---|---|---|---|---|---|
| 1 | 0x02159848 | 52 | 6 | 0 | code |
| 2 | 0x02159ab8 | 36 | 4 | 0 | trampoline / small helper |
| 3 | 0x02159adc | 670 | 33 | 0 | high-fan-out (likely dispatcher / setup) |
| 4 | 0x02159d88 | 32 | 3 | 0 | trampoline / small helper |
| 5 | 0x02159dac | 52 | 3 | 0 | code |
| 6 | 0x02159de4 | 22 | 2 | 0 | trampoline / small helper |
| 7 | 0x02159e00 | 68 | 0 | 0 | code |
| 8 | 0x02159e44 | 96 | 4 | 0 | code |
| 9 | 0x02159ea4 | 56 | 1 | 0 | code |
| 10 | 0x02159ee0 | 22 | 1 | 0 | trampoline / small helper |
| 11 | 0x02159efc | 80 | 5 | 0 | code |
| 12 | 0x02159f58 | 34 | 4 | 0 | trampoline / small helper |
| 13 | 0x02159f80 | 28 | 1 | 0 | trampoline / small helper |
| 14 | 0x02159fa0 | 28 | 1 | 0 | trampoline / small helper |
| 15 | 0x02159fc0 | 10 | 0 | 0 | trampoline / small helper |
| 16 | 0x02159fd4 | 50 | 2 | 0 | code |
| 17 | 0x0215a00c | 64 | 4 | 0 | code |
| 18 | 0x0215a050 | 518 | 28 | 9 | refs: setprice \| setprice \| setprice \| setprice \| setprice \| setprice |
| 19 | 0x0215a284 | 100 | 11 | 0 | code |
| 20 | 0x0215a2ec | 484 | 42 | 0 | high-fan-out (likely dispatcher / setup) |
| 21 | 0x0215a4d0 | 20 | 0 | 0 | trampoline / small helper |
| 22 | 0x0215a4e8 | 20 | 0 | 0 | trampoline / small helper |
| 23 | 0x0215a500 | 38 | 1 | 0 | trampoline / small helper |
| 24 | 0x0215a528 | 20 | 0 | 0 | trampoline / small helper |
| 25 | 0x0215a540 | 38 | 1 | 0 | trampoline / small helper |
| 26 | 0x0215a568 | 10 | 0 | 0 | trampoline / small helper |
| 27 | 0x0215a57c | 10 | 0 | 0 | trampoline / small helper |
| 28 | 0x0215a590 | 360 | 13 | 0 | code |
| 29 | 0x0215a708 | 80 | 2 | 0 | code |
| 30 | 0x0215a75c | 76 | 4 | 0 | code |
| 31 | 0x0215a7ac | 270 | 16 | 0 | code |
| 32 | 0x0215a8ec | 16 | 0 | 0 | trampoline / small helper |
| 33 | 0x0215a900 | 16 | 0 | 0 | trampoline / small helper |
| 34 | 0x0215a918 | 68 | 2 | 0 | code |
| 35 | 0x0215a964 | 12 | 1 | 0 | trampoline / small helper |
Open questions & conflicts
Open questions / unknowns
- Auto-analysis identified 35 functions covering 3556 of 4768 overlay bytes.
- 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/ov072.md - Raw Ghidra dump:
notes/overlay_knowledgebase/raw/ov072.json - Overlay-system explainer: overlays system
- Plain-English overlay primer: overlay knowledgebase