# src/word_source/

FORTH-79 word implementations, one file per category, registered into the
dictionary via `include/word_registry.h`. Each `.c` file here has a
matching header in `src/word_source/include/` and (for most categories) a
matching test module in `src/test_runner/modules/`.

**FORTH-79 core**
- `arithmetic_words.c`, `mixed_arithmetic_words.c` — `+ - * / MOD ABS MIN
  MAX` and mixed-precision arithmetic.
- `stack_words.c` — `DUP DROP SWAP ROT OVER NIP TUCK`.
- `control_words.c` — `IF ELSE THEN DO LOOP BEGIN UNTIL WHILE`.
- `defining_words.c` — `: ; CREATE DOES> VARIABLE CONSTANT`.
- `memory_words.c` — `@ ! C@ C! MOVE FILL`.
- `return_stack_words.c` — `>R R> R@ RDROP 2>R 2R@ 2R>`.
- `double_words.c` — `2DUP 2DROP 2SWAP 2@ 2! D+ D-`.
- `logical_words.c` — `AND OR XOR NOT INVERT LSHIFT RSHIFT`.
- `io_words.c` — `EMIT KEY TYPE CR TAB SPACE ACCEPT`.
- `string_words.c` — `S" SLITERAL` and other string operations.
- `block_words.c` — `BLOCK BUFFER LOAD THRU FLUSH`.
- `format_words.c` — `.( .R .S HEX DECIMAL BASE`.
- `system_words.c` — `BYE ABORT INCLUDE STATE`.
- `dictionary_words.c` — `FIND SEARCH-WORDLIST WORDS`.
- `dictionary_manipulation_words.c` — dictionary entry manipulation words.
- `vocabulary_words.c` — `VOCABULARY DEFINITIONS FORTH-WORDLIST`.
- `editor_words.c` — block editor words.
- `defer_words.c` — `DEFER`/`IS` deferred-word mechanism, used by the
  Tripod message-dispatch shim (see `tools/hermes_tripod_smoke.sh`).

**StarForth-specific extensions**
- `q48_16_words.c`, `q48_words.c` — Q48.16 fixed-point word bindings.
- `starforth_words.c` — StarForth-specific extensions.
- `acl_words.c` — word-level ACL system's FORTH-callable primitives (see
  `docs/03-architecture/word-acl/`).
- `lifecycle_words_hosted.c` — hosted-build VM lifecycle words (birth/run
  primitives on the hosted side; kernel-only primitives live in
  `src/starkernel/capsule/mama_forth_words.c`).
- `log_words.c` — FORTH-callable logging primitives.
- `inference_words.c` — FORTH-callable bindings for the statistical
  inference engine (Loops #5/#6).
- `physics_benchmark_words.c` — benchmark harness for the 7 physics
  feedback loops.
- `physics_diagnostic_words.c` — physics diagnostics (`WORD-ENTROPY`).
- `physics_freeze_words.c` — `PHYSICS-FREEZE` / `PHYSICS-THAW`.
- `physics_pipelining_diagnostic_words.c` — Loop #4 pipelining
  diagnostics.
- `dictionary_heat_diagnostic_words.c` — Loop #1 heat diagnostics.

See `src/word_source/include/` for the matching headers (also includes
`mama_forth_words.h`, whose `.c` implementation lives under
`src/starkernel/capsule/` since it's kernel-only).