Robert Allan JamesandClaude Sonnet 5
29b6789860
Step 1: new artemis_sig_t header format (magic 'ARTM', sibling to homeblocks_sig_t, distinct so a generic scan can tell Artemis's own disk apart from an identity thumbdrive by content alone) -- artemis_sig.h/.c, wired into Makefile.starkernel. Step 2: sk_repl_idle()'s existing per-USB-MSC-slot attach handling (the pattern WIREBIND already uses for identity thumbdrives) now also checks for the ARTM signature whenever a device's home-blocks check comes back BLANK. On a match, once Artemis's own storage-attach round-trip (HERA-BLK-ATTACH-REQ/BLK-ATTACH-ACK) confirms success, capsule_zuse_boot_load_root_pubkey() runs -- the same call kernel_main.c's synchronous QEMU-only virtio-blk path already makes, now reachable without a hardcoded PCI vendor/device scan. That function is already idempotent (no-op once zuse_root_pubkey_known is set), so no boot restructuring was needed despite the initial concern that deferring Artemis discovery to the idle loop would require one. Verified: clean build + QEMU boot to [zuse@Hera] ok> on all three architectures, zero regression to the existing virtio-blk/Zuse-thumbdrive attach path. Steps 3 (genesis-stamping onto disk/artemis.img) and 4 (growable production log-persistence region) not yet started. Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01EXieurDfDSsDFdnSyusuWo
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