Robert Allan JamesandClaude Sonnet 5
2960989100
Punch list §25 item 4.3.6f complete. TEXT ( c-addr u x y size color -- ) walks a UTF-8 byte string, decoding one codepoint at a time via DECODE-UTF8, drawing each via DRAW-GLYPH, and accumulating the cursor X by the glyph's em-advance scaled to pixels. Uses 2>R/2R> to stash the DECODE-UTF8 remainder off the data stack while DRAW-GLYPH's args are pushed. Defined in font.4th, not fabric.4th, so its compiled DRAW-GLYPH call binds to the real definition, not fabric.4th's 4.3.6b placeholder -- same early-binding constraint as DISPATCH-GLYPH itself. Verified live: a string mixing ASCII, Latin-1 (degree sign), and General Punctuation (em dash) renders correctly in one TEXT call with proportional spacing, no overlap. Three-arch acceptance boot clean, Stadium conservation unchanged. Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
capsules/
FORTH personality files loaded by the VM at boot. A capsule is an immutable, content-addressed payload; its XXHash64 hash is its identity. Any mutation changes the hash and the birth protocol rejects the image.
Key files
| File | Type | Purpose |
|---|---|---|
init.4th |
(m) MAMA_INIT |
Default Mama VM personality — loaded at LBN 2048 |
ACL.4th |
user | Word-level ACL system; self-activating at boot |
zuse.4th |
user | Bootstrap superuser; loaded by ACL.4th |
doe.4th |
user | DoE workload words (EXEC-DOE) — opt-in |
init-0.4th … init-9.4th |
(p) |
Numbered personality variants |
init-l8-*.4th |
(p) |
L8 Jacquard mode variants (stable/volatile/diverse/temporal/transition/omni) |
hermes/init.4th |
(p) |
Hermes baby VM personality |
artemis/init.4th |
(p) |
Artemis baby VM personality |
Block namespace
Block ranges are shared across all loaded capsules — collisions cause silent word-definition overwrites.
| Range | Owner |
|---|---|
| 2048–2099 | init.4th |
| 2100–2199 | doe.4th |
| 3000–3999 | workload capsules |
| 4000+ | user-defined (ACL.4th, zuse.4th, …) |
Each block is limited to 1024 bytes. Verify with wc -c before committing.
See also
experiments/bare_metal/README.md— DoE protocols and block namespace rulesdocs/03-architecture/word-acl/DESIGN.md— ACL system designtools/mkcapsule.c— assembles capsules intocapsule_generated.c- Project root