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>
src/starkernel/vm/
Kernel-side StarForth VM subsystem.
vm_core.c— kernel port of the core interpreter loop.vm_runtime.c— kernel VM runtime support.vm_bootstrap.c— kernel VM bootstrap (distinct frombootstrap/sk_vm_bootstrap.c, which owns the higher-level subsystem wiring called fromkernel_main.c).arena.c— capsule arena allocator (fixed-region allocation for capsule payload data).parity.c— birth/execution parity logging (VM ID + capsule hash + dictionary hash), enabling offline determinism verification.alloc_kernel.c— the kernel-side implementation of the VM's allocator interface actually referenced byMakefile.starkernel's build (seesrc/platform/README.mdfor a note on a second, unwired copy).q48_stubs.c— deliberate no-op stubs forq48_from_double()/q48_to_double()in the freestanding kernel build, where floating point is unavailable; always returns zero, safe because shared VM code only uses these results for logging/diagnostic paths that are inactive in the kernel build.vm_internal.h— internal-only declarations shared across this directory's files.
Subdirectories:
bootstrap/sk_vm_bootstrap.c— owns VM init + capsule loading wiring, called fromkernel_main.c;kernel_main.citself only owns hardware milestones.host/shim.c— host-service shim bridging the kernel VM tosrc/starkernel/hal/host_services.c.