Cesarus85--mjolnir-vr/docs/object_matching_logs/sound_classes_obj.md

source/sound/sound_classes.obj strategy ledger

Strict closeout

• Compiler: XDK 3911 CL.Exe 13.00.9254.1 with /O2 /Oy- /DDEBUG /Dxbox.
• January target: build/split/source/sound/sound_classes.obj.
• All 12 functions pass the strict COFF comparator: 1,104 padded code bytes and 64 relocations.
• All 38 target-owned non-code sections are accepted: 3,319 logical bytes and 51 relocations. Thirty-seven sections are strict fingerprint matches; _sound_classes has identical normalized bytes and independently resolved relocation destinations, with its csplit string-owner attribution recorded in config/semantic_data_matches.json.
• _sound_class_data is now the target's undefined external record rather than a candidate-only four-byte COMMON definition.

The final lookup lever is source-faithful and defined C. The local definition pointer remains for both field assertions, while the final return re-forms the same proven element as &sound_classes[class_index]. Keeping the index live through the return gives VC7 the January ESI-index/EDI-definition allocation. _sound_class_get is exactly 208 padded bytes, 18 relocations, and normalized SHA-256 94cb85335dd2d7a8df3858d5f19def3472fc2fe6869825370127078f852d65a0.

The object is admitted as Matching, and its former parked entry is removed. Future changes must preserve all 12 function fingerprints, all 38 accepted target-owned data sections, and the complete rebuilt symbol inventory.

This is a retroactive ledger for work completed before per-object logs became mandatory. It records only evidence preserved in Git, config/parked.json, source comments, and the current progress report. Per-experiment hashes that were not retained by the original lane are not invented here.

Historical scope and baseline

• Compiler: XDK 3911 CL.Exe 13.00.9254.1, /O2 /Oy- /DDEBUG /Dxbox.
• January target: build/split/source/sound/sound_classes.obj.
• Pre-closeout ordinary inventory: 11/12 functions exact; 787/980 meaningful code bytes credited.
• _sound_class_get was the only code residual.
• Ordinary non-code report: .rdata 932/932 bytes; .data is 2,452 bytes at 96.32953%. The object is not eligible for Matching without a fresh strict ownership comparison of that .data.

Historical parked residual

Function	Size T/B	Relocs T/B	Hash T/B	First preserved evidence	Class
_sound_class_get	0xD0/0xD0	18/18	94cb85335dd2d7a8df3858d5f19def3472fc2fe6869825370127078f852d65a0 / 6b1d112cd08fd123c3ce0cdc72232802444600c5e669463144181f64f4572c00	First relocation target +0x16, candidate +0x13; remaining code uses an ESI/EDI index-pointer mirror.	register allocation

Preserved experiment history

The historical lookup lane reconstructed the definition table, assertions, and pointer-return behavior. The final source comment and parked record prove that equal size and all 18 relocation identities were reached, but the lane did not preserve a row-by-row experiment matrix. Do not claim unrecorded spelling variants as tested.

Known exhausted class: declaration/index-pointer lifetime spellings that leave the ESI/EDI mirror unchanged. Unsafe controls remain prohibited: volatile anchors, inline assembly, byte patches, undefined behavior, or flag changes.

Reopen and disposition

The residual is closed. Reopen only if a later source change fails the strict whole-unit regression manifest; do not repeat declaration/register sweeps or weaken the exact return-expression lifetime. The object is strict-complete and must remain Matching while every recorded invariant continues to pass.