ov140 — overlay detail · Tongari Boushi Archive

ov140 unknown

UTF-16 strings: 1 embedded

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 140

File ID 140

RAM load address 0x021a5ee0

RAM size 16,704 bytes (0x4140)

BSS size 12,096 bytes

On-disk compressed size 13,404 bytes

Compression flag 0x1 (BLZ-compressed)

Functions 75

External calls 63

Jump tables 6

Data items 262

Code coverage 23% (3,826 of 16,704 bytes)

Reading the binary

The overlay ships on the cart at file ID 140 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 + 140 * 0x20, allocates the destination RAM region at 0x021a5ee0, decompresses the body in-place (if compressed), and resolves any external relocations.

To inspect this overlay outside the running game, decompress overlay/overlay_140.bin with ndspy.codeCompression.decompress() (Python ndspy library) and load the resulting plaintext into Ghidra or IDA at base address 0x021a5ee0. The raw Ghidra auto-analysis dump used to populate this page lives at notes/overlay_knowledgebase/raw/ov140.json; the per-overlay descriptive markdown is at notes/overlay_knowledgebase/ov140.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.

0x021a8395 `飷ヿ瀜炽`

Container references

This overlay references no container files — 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 75 functions

#	Address	Size	Calls	Role hint
1	0x021a5ee0	14	0	trampoline / small helper
2	0x021a5f8c	44	2	code
3	0x021a67a4	58	4	code
4	0x021a6884	6	0	trampoline / small helper
5	0x021a68b4	8	0	trampoline / small helper
6	0x021a68c0	8	0	trampoline / small helper
7	0x021a68d4	6	0	trampoline / small helper
8	0x021a68e0	6	0	trampoline / small helper
9	0x021a68ec	6	0	trampoline / small helper
10	0x021a68f8	98	4	code
11	0x021a696c	104	4	code
12	0x021a6a44	132	0	code
13	0x021a6ad4	136	5	code
14	0x021a6bc8	116	3	code
15	0x021a6c94	6	0	trampoline / small helper
16	0x021a6ca0	26	1	trampoline / small helper
17	0x021a6d10	10	0	trampoline / small helper
18	0x021a6d28	48	3	code
19	0x021a6d60	6	0	trampoline / small helper
20	0x021a6ee0	6	0	trampoline / small helper
21	0x021a6eec	6	0	trampoline / small helper
22	0x021a6f5c	16	1	trampoline / small helper
23	0x021a702c	24	0	trampoline / small helper
24	0x021a707c	8	0	trampoline / small helper
25	0x021a708c	8	0	trampoline / small helper
26	0x021a709c	22	2	trampoline / small helper
27	0x021a70b8	22	2	trampoline / small helper
28	0x021a7170	46	2	code
29	0x021a71b4	18	0	trampoline / small helper
30	0x021a71cc	268	15	code
31	0x021a72f8	266	18	code
32	0x021a79a0	86	9	code
33	0x021a79fc	56	4	code
34	0x021a7a38	32	2	trampoline / small helper
35	0x021a7a58	58	3	code
36	0x021a7b64	266	17	code
37	0x021a7c98	46	1	code
38	0x021a7cd4	90	4	code
39	0x021a7f6c	24	2	trampoline / small helper
40	0x021a7f8c	8	0	trampoline / small helper
41	0x021a7f9c	8	0	trampoline / small helper
42	0x021a7fac	22	2	trampoline / small helper
43	0x021a8080	70	0	code
44	0x021a81c4	18	0	trampoline / small helper
45	0x021a8288	56	6	code
46	0x021a82c8	22	3	trampoline / small helper
47	0x021a82e0	36	3	trampoline / small helper
48	0x021a8308	24	1	trampoline / small helper
49	0x021a8320	60	5	code
50	0x021a835c	64	6	code
51	0x021a839c	56	5	code
52	0x021a83d4	18	0	trampoline / small helper
53	0x021a83f0	26	1	trampoline / small helper
54	0x021a8410	48	3	code
55	0x021a8640	306	18	code
56	0x021a8eb8	46	1	code
57	0x021a8fd4	16	0	trampoline / small helper
58	0x021a8fe4	18	1	trampoline / small helper
59	0x021a8ffc	80	2	code
60	0x021a9050	8	0	trampoline / small helper
61	0x021a905c	52	2	code
62	0x021a9094	44	2	code
63	0x021a90c4	20	1	trampoline / small helper
64	0x021a9be4	18	1	trampoline / small helper
65	0x021a9c90	26	0	trampoline / small helper
66	0x021a9cac	32	1	trampoline / small helper
67	0x021a9cd0	6	0	trampoline / small helper
68	0x021a9d1c	6	0	trampoline / small helper
69	0x021a9d2c	128	0	code
70	0x021a9db0	116	1	code
71	0x021a9e34	28	0	trampoline / small helper
72	0x021a9e58	12	1	trampoline / small helper
73	0x021a9e64	34	1	trampoline / small helper
74	0x021a9e88	22	1	trampoline / small helper
75	0x021a9ea0	66	1	code

Open questions & conflicts

Open questions / unknowns

Auto-analysis identified 75 functions covering 3826 of 16704 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 12096 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/ov140.md
Raw Ghidra dump: notes/overlay_knowledgebase/raw/ov140.json
Overlay-system explainer: overlays system
Plain-English overlay primer: overlay knowledgebase

‹ ov139 All overlays ov141 ›