Robert Allan JamesandClaude Sonnet 5
2c34e45d05
Adds Setup/Data/Status stage TRB types and control bits (IDT, TRT, DIR) to xhci.h, and xhci_ep0_enqueue_trb()/xhci_ep0_get_device_descriptor() to xhci.c -- the first real control transfer this driver has issued. Follows the same enqueue-then-doorbell-once pattern as the Command Ring, operating on the EP0 Transfer Ring built during 2e's Address Device work. Setup Stage uses Immediate Data (parameter IS the 8-byte setup packet); Data Stage reads into a reused 18-byte device_descriptor buffer; Status Stage alone carries IOC, so exactly one Transfer Event signals transfer completion, correlated via a new pending_transfer_slot_id (same single-outstanding-operation pattern as connect/Enable Slot/Address Device). Automatically triggered once Address Device succeeds. Verified live via QMP hotplug, all three architectures, worked first try with identical results everywhere: idVendor=0x46f4, idProduct=0x0001, bDeviceClass=0x00 -- the class=0 confirms Mass Storage class detection needs the Configuration/Interface descriptor (2f's next item), not the device descriptor. Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01HZ8kNoTuP63pbQtro4qvrm
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