Files
LithosAnanake/include
Robert Allan JamesandClaude Sonnet 5 a88c004ecb Artemis Milestone 2g: CBW construction and send for SCSI READ(10)
First real use of the bulk Transfer Rings Configure Endpoint wired up.
xhci_bot_send_read10() builds a 31-byte Command Block Wrapper (USB Mass
Storage Class Bulk-Only Transport spec section 5.1) and submits it as a
single Normal TRB on the bulk OUT ring via a new
xhci_bulk_out_enqueue_and_ring() helper -- a CBW is always exactly one
TRB, so unlike the EP0 helper this one rings its own doorbell rather
than leaving that to a caller assembling a group.

usb_bot_cbw_t is a real struct (every field up to the CDB array is
naturally aligned, and this driver's targets are all little-endian
already assumed everywhere else), but its DMA length is the explicit
USB_BOT_CBW_LENGTH (31) constant, never sizeof(*cbw), since the
compiler may pad the struct to 32 bytes. The SCSI READ(10) CDB itself
is written byte-by-byte since its LBA/Transfer Length fields are
big-endian on the wire, unlike everything else in this driver -- the
one place two byte orders are both live in the same function.

Completion is correlated via the existing pending_transfer_slot_id/
transfer_purpose gate (new XHCI_XFER_CBW_SENT purpose) -- no
ring-specific dispatch needed, since this driver's single-outstanding-
transfer scope already implies which ring produced an event.

This covers construction and send only (one third of a full READ(10):
CBW -> Data-In stage -> CSW) -- reading the Data-In stage and CSW
receive/validation are separate, explicitly not-yet-implemented items.

Verified live via a temporary probe (written, run once, log captured,
reverted per this project's own probe convention) -- all three
architectures, byte-identical: CBW submitted -> CBW send completed,
then a clean disconnect even with the Data-In stage never drained
(confirms no wedge on a dangling BOT transaction). Probe-free
re-verification afterward on all three architectures.

FABRIC-2.md Section X Milestone 2g's CBW checklist item marked done.
Also records a monitoring gotcha hit three times this session: `ls -t`
over the logs/ tree can return a stale leftover log from an earlier
run in the same session -- fixed going forward by reading the log path
off the actual running QEMU process's own command line instead, and a
memory note added so it doesn't recur next session.

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01R4VMX6VSKCten8nGgaMkq4
2026-08-25 09:07:33 -04:00
..
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include/

Public headers for the hosted StarForth VM (src/). Kernel-only headers live under include/starkernel/.

Core VM

  • vm.h — the VM struct and all core types (DictEntry, DictPhysics, stacks, dictionary state); the central header most other files include.
  • vm_api.h — external VM API surface.
  • vm_host.h, vm_debug.h, startup.h, version.h — host integration, debug utilities, startup sequencing, version string.
  • cli.h, repl.h, io.h, log.h — CLI parsing, REPL loop, I/O, logging.
  • word_registry.h — word registration system shared by every src/word_source/*.c file.
  • compudynamics.h — the generic compudynamics module: tuning-word/config lookups (cd_tuning_word(), cd_tuning_vm()) consumed by ssm_jacquard.c.

Memory / blocks

  • memory_management.h, dictionary_management.h — dictionary allocator and search.
  • block_subsystem.h, blkcfg.h, blkio.h, blkio_factory.h — logical→ physical block mapper and pluggable block I/O backends (file/RAM).
  • platform_alloc.h, platform_lock.h, platform_time.h — platform abstraction shims (hosted vs. kernel allocation/locking/timing).

Physics-driven adaptive runtime (7 feedback loops)

  • physics_runtime.h — main physics coordinator.
  • physics_hotwords_cache.h — Loop #1, execution-heat hot-words cache.
  • physics_metadata.h — per-word DictPhysics metadata tracking.
  • physics_pipelining_metrics.h — Loop #4, word-transition prediction.
  • physics_execution_hooks.h — execution instrumentation hook points.
  • rolling_window_of_truth.h, rolling_window_knobs.h — Loop #2 circular execution-history buffer and its tuning knobs.
  • inference_engine.h — Loops #5/#6, window-width and decay-slope statistical inference.
  • dictionary_heat_optimization.h — Loop #1 heat counters.
  • ssm_jacquard.h — L8 Jacquard steady-state mode selector.
  • doe_metrics.h — Design of Experiments (2^7 factorial) metrics.
  • profiler.h — performance profiling hooks.

Arithmetic / codegen

  • q48_16.h — Q48.16 deterministic fixed-point arithmetic (used instead of IEEE-754 float specifically to keep cross-architecture behavior bit-identical).
  • math_portable.h — portable math helpers.
  • arch_detect.h, starforth_config.h — architecture detection and the build-flag fallback-default layer (used when a .c file is compiled by hand without make).
  • vm_asm_opt.h, vm_asm_opt_arm64.h, vm_asm_opt_riscv64.h, vm_inner_interp_asm.h, vm_inner_interp_arm64.h, vm_inner_interp_riscv64.h — per-architecture assembler-optimized inner interpreter (USE_ASM_OPT=1).

See include/starkernel/README.md for the bare-metal kernel headers.