Batch 15: promote cmd_sem_init and seven overlay functions

[pezzadev]

Before

The batch begins at upstream main 59fa04961077fffa23445e9ca9ba83bbe0d342b0. The eight units below were assembly-backed, and several overlay functions had only retail stubs or unfinished C bodies.

After

Promote eight exact C units, totalling 8,468 bytes of unique function code:

Unit	Retail size
sdk/library/cmd_sem_init	148 B
FUN_L06_002fbfb0	1,664 B
FUN_L08_002dc9a8	1,568 B
FUN_L10_002e8ab0	1,400 B
FUN_L18_002f9eb8	920 B
FUN_L01_002b91c8	1,272 B
FUN_L00_002cbcc0	680 B
FUN_L00_00262030	816 B

Move cmd_sem_init to its SDK owner and update the linker configuration. The overlay promotions retain their existing catalogue ownership.

Add guarded C bodies for 17 overlay functions covering entity state machines, path following, collision handling and effects. Refine existing pending resident and overlay bodies, including SIF command initialization, music transitions, text rendering and graphics setup. These bodies retain their retail oracles and remain pending; successful full-image validation does not establish that their C matches.

Reuse the shared CollisionHit, SwarmPath and VoicePoolWindow layouts. Preserve the established air_accel and register_part_types names with canonical assembly labels, and retain FUN_001f7978 as the canonical draw-frame callee.

Verification

• Fresh C-body checks report all eight promotions exact/promotable.
• Before/after C-body measurements for all six review cleanup units preserve the verdict and recorded differences; the collision function remains exact. Five other cleanup units remain pending.
• make elf ends with PASS: reconstructed boot ELF matches retail; the reconstructed executable also matches the pinned retail SHA-256.
• make overlays ends with PASS.
• make check passes.

[decomp-dev]

Report for SCUS_971.99 (59fa049 - 453f2a1)

📈 Matched code: 87.14% (+0.24%, +8468 bytes)
📈 Linked code: 87.14% (+0.24%, +8468 bytes)

✅ 8 new matches

Unit	Item	Bytes	Before	After
level_06/gameplay/entities/002b4770	FUN_L06_002fbfb0	+1664	0.00%	100.00%
level_08/gameplay/entities/002b8228	FUN_L08_002dc9a8	+1568	0.00%	100.00%
level_10/gameplay/vendor/002df270	FUN_L10_002e8ab0	+1400	0.00%	100.00%
shared/gameplay/entities/002b8c08	FUN_L01_002b91c8	+1272	0.00%	100.00%
level_18/gameplay/vendor/002f88e8	FUN_L18_002f9eb8	+920	0.00%	100.00%
shared/gameplay/state/00261968	FUN_L00_00262030	+816	0.00%	100.00%
shared/gameplay/entities/002c8440	FUN_L00_002cbcc0	+680	0.00%	100.00%
sdk/library	cmd_sem_init	+1	99.99%	100.00%

[github-actions]

Decompilation progress

	C_EXACT	Change	Matched bytes	Functions	C_FUZZY
All code	87.14 %	+0.24 pp	3,090,160 / 3,546,268 B (+8,468 B)	3,950 / 4,233 (+8)	88.47 %
Boot executable	84.77 %	+0.04 pp	299,116 / 352,840 B (+148 B)	1,160 / 1,219 (+1)	98.11 %
Game	84.26 %	—	229,892 / 272,844 B (—)	865 / 905 (—)	98.40 %
SDK	86.53 %	+0.19 pp	69,224 / 79,996 B (+148 B)	295 / 314 (+1)	97.12 %
Level overlays	87.40 %	+0.26 pp	2,791,044 / 3,193,428 B (+8,320 B)	2,790 / 3,014 (+7)	87.40 %
Shared level code	79.17 %	+0.24 pp	895,028 / 1,130,492 B (+2,768 B)	1,433 / 1,583 (+3)	79.17 %
Per-level code	91.91 %	+0.27 pp	1,896,016 / 2,062,936 B (+5,552 B)	1,357 / 1,431 (+4)	91.91 %

8 newly matched functions (8,468 B)

Function	Address	Size	Unit
FUN_L06_002fbfb0	0x002fbfb0	1,664 B	level_06/gameplay/entities/002b4770
FUN_L08_002dc9a8	0x002dc9a8	1,568 B	level_08/gameplay/entities/002b8228
FUN_L10_002e8ab0	0x002e8ab0	1,400 B	level_10/gameplay/vendor/002df270
FUN_L01_002b91c8	0x002b91c8	1,272 B	shared/gameplay/entities/002b8c08
FUN_L18_002f9eb8	0x002f9eb8	920 B	level_18/gameplay/vendor/002f88e8
FUN_L00_00262030	0x00262030	816 B	shared/gameplay/state/00261968
FUN_L00_002cbcc0	0x002cbcc0	680 B	shared/gameplay/entities/002c8440
cmd_sem_init	0x000217a8	148 B	sdk/library

_{Compared with main (59fa049). C_FUZZY uses main's last measurement.}