.asmFrom the SWH-MSR-ARV dataset (Desmazières, Di Cosmo, Lorentz, MSR 2025; file nb_extensions_alphanum.csv) — one row per (ext, year) in the full SWH archive. Case-aggregated. citation.
Case variants in archive: .asm (3.9M), .ASM (121.3K), .Asm (6.4K), .aSM (5), .ASm (4), .asM (2), .AsM (1), .aSm (1) — aggregated above.
This extension is attributed to ASM; Assembly; Assembly; Motorola 68K Assembly; Motorola 68K Assembly; Nasm; TASM as primary by 7 authoritative claims.
.asm among their extensions. Strength reflects whether the upstream source treated it as their primary extension.| Language | Source | Strength |
|---|---|---|
| ASM | wikidata | primary |
| Assembly | linguist | primary |
| Assembly | pygments | primary |
| Motorola 68K Assembly | linguist | primary |
| Motorola 68K Assembly | pygments | primary |
| Nasm | pygments | primary |
| TASM | pygments | primary |
.asm on Wikidata
(property P1195) or in the Wikipedia infobox.
Source: data/derived/external_extension_index.csv.
Click Use as new PL on any row to open the
Add-PL form pre-filled with that entry's name, Wikipedia/Wikidata
URL, and this extension — one submission creates the PL + claim.
| Format | Class (Wikidata P31) | Suggested label | MIME | Notes | Action |
|---|---|---|---|---|---|
| Assembly Language Source Code File Q111417217 file format | file format | — | — | — | Use as new PL ↗ |
| freeCAD assembly Q105854567 file format | file format | — | — | — | Use as new PL ↗ |
| Netwide Assembler file format Q130362854 file format | file format | — | text/x-nasm | — | Use as new PL ↗ |
.asm file actually is.| Rule | Predicts | Kind | Predicates (truncated) |
|---|---|---|---|
h/linguist/.asm/0 | Assembly | predicates | [{"kind": "any", "regexes": ["(?i)mov\\s+[^\\s]{2,},"]}] |
h/linguist/.asm/1 | Motorola 68K Assembly | predicates | [{"kind": "any", "regexes": ["(?im)\\bmoveq(?:\\.l)?\\s+#(?:\\$-?[0-9a-f]{1,3}|%[0-1]{1,8}|-?[0-9]{1,3}),\\s*d[0-7]\\b", "(?im)^\\s*move(?:\\.[bwl])?\\s+(?:sr|usp),\\s*[^\\s]+", "(?im)^\\s*move\\.[bwl |