Files
LithosAnanake/include
Robert Allan JamesandClaude Sonnet 5 e55111c2c5 starkernel: item 3.7 -- per-VM free lists (Phase 3 core complete, for real)
Punch list §25 item 3.7 complete. Added to §25.4 after starting item
4.1 surfaced it as an unbuilt prerequisite -- 3.6's earlier "Phase 3
core complete" claim is corrected in this same commit.

StadiumVMQuota table (size STADIUM_MAX_VM_COUNT, linearly searched by
vm_id -- capsule_birth.c's vm_id is monotonic and never reused, so it
cannot index a table directly, and a 4-entry scan costs nothing). New
per-cell stadium_owner byte array records which quota a cell belongs
to, needed so eviction returns a freed cell to the correct VM's list
and so eviction search stays scoped to the evicting VM's own residents
(quota isolation).

Free-list linkage reuses each cell's `link` field as a next-free
pointer while unresident -- link is documented only as generic "index
into the Stadium, not a pointer," so this is a repurposing, not a
header change. Does not answer the separate, still-open question of
which field carries a multi-cell patron's first continuation-cell
index; item 3.5's mass != 1 refusal stands exactly as it was.

Boot-time: every cell chained into one list in ascending index order,
granted whole to vm_id 0 (Hera), the only VM that exists. Ascending
order preserves item 3.6's "Hera is patron zero" invariant once real
birth-wiring lands.

stadium_admit()'s signature changed to take vm_id -- a change to code
shipped in item 3.5, amended there. Pops the calling VM's free-list
head first (O(1)); only falls back to a same-VM-scoped eviction search
if empty.

Caught a real bug before the boot run: the header zero-fill on
eviction (and the initial free-list build) both left contains == 0,
but 0 is Hera's valid index -- the same collision item 3.1's
STADIUM_CONTAINS_NONE fix addressed, recurring at a new site. Fixed by
explicitly setting contains = STADIUM_CONTAINS_NONE at both free-list
sites.

Explicitly out of scope, reported not invented: granting quota to any
VM other than Hera is capacity arbitration (item 1.3 left "how much
moves per transfer" open). stadium_owner is set once at boot and never
rewritten, so quota_slot_for_vm() refuses every vm_id != 0 permanently
until item 4.2 adds the grant path and owner-array writes.

Verified: three-architecture boot (amd64, aarch64, riscv64), all
reaching ok> with identical dict_hash=0x3d4e1daf289da94f matching the
item-3.6 baseline.

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
2026-08-04 18:09:34 -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.