Robert Allan JamesandClaude Opus 5.5
06bcab504d
Who runs next is now sk_vm_switch_decide(): among participants with work (pending kernel-Hermes mail, parked mid-task, or Hera with console input), the coolest by VM-physics heat; ties with the incumbent keep the incumbent, ties among candidates go to the longest waiting (unique wait stamps). No scheduler state, no timer: heartbeat_tick() no longer touches switching, readiness/threshold/has_work/take_pending removed. Decided at owned word checkpoints (colon words and, new, between top-level words) after a beat or new mail, at the trampoline between messages, and at Hera's idle point in the console poll loops. The idle pump skips participants (G3 closed for them): the WIREBIND relay is delivered by a real switch to rajames~user. Probe (restored away): relay via switch Hera->rajames~user->Hera on all three ISAs, parked saved_sp inside own stack, walk-order disagreements 0 over tens of millions of decisions, 0 bytes idle log growth. Acceptance: dict_hash unchanged, relay 3, no faults. Rulings: C-3, C-5 as proposed; C-4 taken as (alpha), consequence recorded. Co-Authored-By: Claude Opus 5.5 <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 |
workload-0.4th … workload-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