Punch list §25 item 4.3.6d complete. Both capsules now EXEC via
Hera's Mama IDENTITY capsule (init.4th block 2049), loading on every
normal boot instead of manual serial injection. Verified by booting
with zero injected commands and calling DRAW-GLYPH directly.
Three-arch acceptance boot clean, Stadium conservation unchanged.
Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
Punch list §25 item 4.3.6c complete. Digits, upper/lowercase, ASCII
punctuation, Latin-1 Supplement, and General Punctuation, each a
stroke-drawing word in the 4.3.6 em-square convention.
Corrected mid-build: the first pass used G-LINE only, missing that
CIRCLE/ARC/ELLIPSE already existed (4.3.3b). Reworked all round shapes
to use them via new em-square-aware wrappers (G-CIRCLE/G-ARC/G-ELLIPSE/
EM-R, fabric.4th 5000-5002), bounded to quarter/half/three-quarter/
full sweeps to avoid unbounded per-glyph angle tuning. font.4th also
redefines DISPATCH-GLYPH/DRAW-GLYPH themselves, not just the six
DISPATCH-* bucket words, since fabric.4th's originals were compiled
early against the 4.3.6b placeholders (CASE early-binding, §27.6.5).
Three-arch acceptance boot clean, Stadium conservation unchanged.
Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
Punch list §25 item 4.3.6b complete.
capsules/fabric.4th blocks 4921-4924: DISPATCH-GLYPH routing via
WITHIN to six bucket words (DISPATCH-DIGIT/-UPPER/-LOWER/
-ASCII-PUNCT/-LATIN1/-GENPUNCT), TOFU fallback, DRAW-GLYPH. Buckets
carry one placeholder stroke word each (G-TEST-*), not the real
113-glyph set -- that's item 4.3.6c's scope, deliberately deferred.
Also: merged two lines in block 4920 (DECODE-UTF8) to fit mkcapsule's
real 64-char x 16-line block limit once a trailing blank separator
line is counted against it -- mechanical reformat, re-verified via a
DECODE-UTF8 regression check (65/176/8212, unchanged).
Verified live on amd64: one representative codepoint per bucket plus
one out-of-range codepoint, all seven DRAW-GLYPH results matched
expected exactly (400/600/450/250/550/700/500-TOFU). Three-arch
acceptance boot clean, Stadium conservation unaffected.
Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
Punch list §25 item 4.3.6a complete.
capsules/fabric.4th blocks 4918-4920: UTF8-SEQ-LEN/UTF8-CONT? verbatim
from §27.6.2, DECODE-UTF8 dispatching to four UTF8-ASSEMBLE-N helpers
(1/2/3/4-byte). Factored into helpers after the single-word draft hit
mkcapsule's real 64-char x 16-line block limit. Verified live on
amd64: a 6-byte test buffer (ASCII + deg-sign + em-dash) decoded to
65/176/8212 across three sequential calls, exact match against
hand-computed codepoints, buffer fully consumed. Three-arch acceptance
boot clean, Stadium conservation unaffected.
Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
Punch list §25 item 4.3.6 complete.
capsules/fabric.4th blocks 4916-4917: EM-UNITS, GOX/GOY/GSIZE/GCOLOR,
EM-X/EM-Y/G-LINE per §27.6.1, scaling/translating em-square strokes
into CART-PLOT screen coordinates via */. Verified live on amd64 via
a temporary probe (built, run once, reverted): two G-LINE test shapes
at GSIZE 100 and GSIZE 50, one leg each exercising a negative em-y
value chosen to hit */'s truncate-toward-zero behaviour, not a
multiple of EM-UNITS. Screendump pixel-bbox extraction matched
hand-calculated raster coordinates exactly on both shapes. Three-arch
acceptance boot clean, Stadium conservation unaffected
(resident_sum=43691 reservoir=21845 sum=65536 on all three).
Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
Punch list §25 item 4.3.5f complete. Keyboard-input slice done.
New KEY-EVENT ( -- keycode pressed -1 | 0 ) converges amd64's i8042,
riscv64's and aarch64's virtio-keyboard-pci behind one shape. Translation
needed is minimal: XT Set-1 make codes and Linux input keycodes are
numerically identical across the standard 84-key block (a documented
historical property of the Linux input subsystem, confirmed against this
host's own headers and this tree's own prior live observations), so amd64
needs two lines, riscv64/aarch64 need none. Verified live with a real
keypress on all three architectures: identical "-1 1 30" output everywhere.
Three-arch acceptance boot clean.
Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
Punch list §25 item 4.3.5e complete.
Extended virtio_input.c with a GIC-routed interrupt path alongside 4.3.5c's
PLIC one -- same capability walk, feature negotiation, eventq handling
(confirming §27.5.1's prediction that these items would share most of the
driver). aarch64_irq_handler() dispatches to virtio_input_isr() before its
EOIR write, same claim-dispatch-complete ordering riscv64 uses. Verified
with a real QEMU sendkey keypress: exact KEY_A/press match, two real
interrupts serviced, identical result to riscv64. Found (not fixed) an
unrelated pre-existing bug: BYE's cold-reset path faults on aarch64,
discovered incidentally since nobody had exercised it from a monitored
session before. Three-arch acceptance boot clean.
Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
Punch list §25 item 4.3.5d complete.
New apic_spi_enable(intid) generalizes item 0.6's PPI-only sequence to one
explicit SPI (IPRIORITYR/ISENABLER/ITARGETSR, ICFGR read-checked not
written). Verified via a software-pended SPI (GICD_ISPENDR, no device
needed) through the existing generic IRQ dispatch, which needed no changes.
Found and fixed a real bug during verification: PSTATE.I is still set at
apic_init()'s point in boot, so the first self-test run correctly latched
but never took the interrupt. Self-test code reverted after capturing
evidence -- interrupts.c has zero net diff, only apic_spi_enable() remains,
unused until 4.3.5e. Three-arch acceptance boot clean.
Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
Punch list §25 item 4.3.5c complete.
Amended from a nonexistent MMIO transport to PCI (matching the board's
actual virtio-blk-pci precedent). New virtio-input driver: eventq with
pre-posted buffers, PLIC source computed at runtime from PCI slot/pin
(derived live from this host's QEMU riscv64 DTB), mandatory ISR-status
read, PCI interrupt-disable-bit check. New VKBD-EVENT/VKBD-DEBUG FORTH
words. Verified with a real QEMU sendkey keypress: exact KEY_A/press
match, two real interrupts serviced, zero exceptions. Three-arch
acceptance boot clean.
Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
Punch list §25 item 4.3.5b complete.
sie.SEIE enabled, PLIC threshold/claim/complete wired into the trap
handler. Verified with a UART-loopback synthetic interrupt (PLIC has no
software set-pending register, unlike GICv2): claim_count=1, last_irq=10,
IIR confirms genuine receive-data cause, byte matched exactly. Self-test
code run once for evidence then fully reverted, per Captain Bob's ruling;
only the permanent substrate remains, no source enabled by default.
Three-arch acceptance boot clean, zero exceptions.
Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
Punch list §25 item 4.3.5a complete.
Firmware (EDK2 RISC-V) leaves Sv57 paging active at kernel entry with an
identity mapping that has at least one confirmed hole (PLIC threshold
register). Verified live before acting: satp.MODE/PPN and __kernel_start's
address confirmed identity mapping; switched to Bare mode (csrw satp, x0 +
sfence.vma) in arch_early_init(), ahead of pmm_init()/vmm_init().
Three-arch acceptance boot clean, zero exceptions; riscv64's PLIC_THRESHOLD
write now survives (PLIC driver code itself lands separately with 4.3.5b).
Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
Live-probed GICD_ITARGETSR before starting 4.3.5d/e; survived cleanly,
unlike riscv64's PLIC (4.3.5a). Decoded QEMU's own virt DTB for the PCI
slot->SPI interrupt-map routing table and closed-form formula. Amended
4.3.5d's circular acceptance criterion to a synthetic GICD_ISPENDR probe
(mirrors 4.3.5b's fix for the same problem), and wrote the full 4.3.5e
virtio-input execution plan: device ID 0x1052, the real virtio_input_event
struct, the mandatory ISR-status read, and the pci_enable() interrupt-
disable-bit gap.
Log: logs/20260808-093228/aarch64/.
Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
Three-arch acceptance run (amd64/aarch64/riscv64) after adding -device
ramfb to aarch64/riscv64, plus the interactive GOP-verification and cube
sessions on both.
Three-arch acceptance run (amd64/aarch64/riscv64) plus the interactive
sessions used to test LINE/CIRCLE/ARC/ELLIPSE, the block-span test, and
verify the Q.TO-INT fix.
Three-arch acceptance run (amd64/aarch64/riscv64) plus the interactive
fabric.4th verification sessions used to test CART-PLOT and find the
VARIABLE alignment bug.
Migrates Hermes's message/channel lifecycle onto the Stadium's unified
heat/capacity economy: MSG-ALLOC/FREE-NODE and CH-ALLOC/FREE-NODE now
route entirely through stadium_admit()/stadium_evict(), replacing the
old local free-list + independent heat-field mechanism. Eight
kernel-only STADIUM-* FORTH primitives (ADMIT, EVICT, RES@, RES-PULL,
RES-PUSH, HEAT@, HEAT!, WORD-HEAT), VM.stadium_vm_id threaded through
all three vm_core.c dispatch sites (replacing item 4.1's hardcoded
vm_uuid_hera()), and the stadium_owner[idx] fix so evict-credit lands
in the VM that actually admitted a patron, not whoever owned cell 0.
This session's own contribution, on top of that pre-existing
implementation: found and fixed two bugs blocking the item's own K≡1.0
conservation self-check (HERMES-K was reading 0, not 65536):
- Q.SLOT admission-heat fix (capsules/hermes/init.4th): MSG-SEND/
CH-ACCEPT admitted with Q.1 (the entire fleet-wide "1.0" unit) per
item, a leftover from before the Stadium migration when each
message/channel had its own unconstrained heat field. Instantly
drained the shared, finite reservoir.
- Reservoir floor for word-execution admission (stadium_words.c):
stadium_word_dispatch() (item 4.1) pulls STADIUM_WORD_HEAT_QUANTUM on
every word dispatch, not just first admission -- exhausts a VM's
entire reservoir in ~32 dispatches, starving any application-level
economy sharing that VM's reservoir before it gets a chance to pull
anything. word_dispatch_pull() now clamps word-execution's own pulls
to leave a Q48_ONE/3 floor (same fair-share figure COMMON-CH's own
floor already uses); application-level pulls are unaffected.
- STADIUM-WORD-HEAT primitive + stadium_words_resident_heat(): the
floor deliberately leaves word-execution residents holding real
heat, invisible to HERMES-K's original formula (MSG+CH+reservoir,
no term for word patrons). Adding this term closes K to exactly
65536 on all three architectures.
Also rules on two open scope questions in FABRIC.md: MBR-ALLOC/
MBR-FREE-NODE stay off the Stadium (membership records have no heat
field, never did -- the acceptance bullet's inclusion of them was a
completeness gesture predating a check of the actual layout), and
records the effort number (12 implementation files, +759/-120 lines).
Verified: all three architectures boot clean, full self-test passes,
Stadium conservation closes exactly (resident_sum + reservoir =
Q48_ONE) at both the C/Stadium level and the FORTH-level HERMES-K
check.
Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
The generic block subsystem (blk_format_or_load_disk) auto-reformatted
any disk lacking its own low-level 'STFR' header at attach time, before
Artemis's Forth-level BLANK/LithosAnanke/Unrecognized classification
ever ran -- so ART-HALT-UNRECOG's "Disk preserved" message was false.
Split detection from commit: an unrecognized/blank disk is now left
PROVISIONAL (geometry computed in memory only, all writes refused)
until explicitly confirmed via the new blk_subsys_confirm_format() /
BLK-CONFIRM-FORMAT primitive. Artemis calls it from ART-FORMAT and
ART-RESUME, never from ART-HALT-UNRECOG.
Verified on amd64/aarch64/riscv64: parity intact (identical dict_hash),
normal recognized-disk resume + persist-read unaffected, and a
regenerated disk/artemis-unrecognized-test.img (the old copy had itself
been silently corrupted by this exact bug) now stays byte-for-byte
identical across a halted boot on amd64 and riscv64.
Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
ABORT is documented and tested in this codebase as standard FORTH-79
behavior -- system_words_test.c:63: "Should clear stacks and return to
QUIT" -- meaning it should unwind all the way back to the outermost
interpreter loop, abandoning whatever's left of the current line/block.
The implementation only unwound one level: every place that checked
vm->abort_requested cleared it the instant it saw it, so it never
survived to propagate past the first nested frame.
This surfaced via Artemis's ART-HALT-UNRECOG (capsules/artemis/init.4th):
on an unrecognized disk it correctly printed "ARTEMIS HALT: unrecognized
disk content" and called ABORT, but WELCOME (the next line in the same
block) ran anyway, and Artemis announced ready to Hermes and joined the
fleet normally -- contradicting .claude/ARTEMIS.md's "Refuse to mount...
do not overwrite it" requirement. Root cause is general, not
Artemis-specific, and present identically in both the hosted and kernel
VM cores.
Fixed at every level execution can nest through, verified by exhaustively
grepping every !vm->error-gated continuation loop and adding the parallel
!vm->abort_requested check:
- execute_colon_word (src/vm.c, src/starkernel/vm/vm_core.c): stop
clearing the flag on return -- every colon-word call is a recursive
call to this same function, so leaving it set lets every enclosing
frame's own check also unwind.
- vm_interpret (src/vm.c, src/starkernel/vm/vm_core.c): stop parsing
further words in the current input string once the flag is set.
- exec_block_with_retry (src/starkernel/capsule/capsule_loader.c):
capsule birth's line-by-line block executor -- stop processing further
lines in the current block, but return 0 (not -1), so
capsule_exec_payload still loads later blocks in the same capsule
payload. Returning -1 here would have silently broken word definitions
in blocks that come after the aborting one for reasons unrelated to
why it aborted (concretely, Artemis's ART-PING/LOAD-DOE in blocks
4851/4852, which follow the entry block 4133).
- THRU and --> (src/word_source/block_words.c): stop processing further
blocks/lines in their own loops.
- DODOES (src/word_source/defining_words.c): the CREATE...DOES> runtime
has its own hand-rolled execution loop, separate from
execute_colon_word -- same bug class, same fix. Also guarded the
post-loop "if (vm->rsp < base_rsp) vm->rsp = base_rsp" clamp so it
doesn't fire on an abort exit -- ABORT's own reset_vm_state() already
set rsp; restoring it to base_rsp would have partially undone that.
- Both REPL loops (src/repl.c, src/starkernel/repl.c x2 call sites):
clear the flag after each line, mirroring the existing vm->error
pattern, so a mid-line abort doesn't silently freeze subsequent
interactive input.
Verified directly: ": AB-TEST 1 2 3 ABORT 999 . ; AB-TEST 42 . CR
777 . CR" -- 999 never prints (stops mid-colon-word), 42 never prints
(stops the rest of the same line), 777 prints fine (next line
unaffected). Artemis: WELCOME/"Artemis ready" no longer fires after the
halt message. No regression: all three architectures still show PASS:
persist-read, PASS: E2E msg flow, and matching dict_hash on the normal
(non-aborted) boot path; hosted test suite 965 passed / 0 failed.
Known follow-up, not fixed here (see memory for details): Artemis still
announces ready to Hermes via a separate call path (CD-INIT, block 4141)
that never went through capsule_exec_payload's block chain in the first
place, and the disk file still picks up incidental writes even on a
correctly-halted boot -- likely generic block-subsystem housekeeping,
not traced yet.
Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
Chases down the amd64/aarch64/riscv64 "FAIL: persist-read" that
capsules/artemis/init.4th's ART-READ-TEST self-test has been reporting
in every boot log in this repo's history.
Root cause: not a code bug. disk/artemis.img had been stuck in a
corrupted state (valid LithosAnanke magic header, but data not matching
what ART-READ-TEST expects) since before this repo's own git history
begins -- already broken at the initial commit, carried over from the
pre-split monorepo. The FAIL was accurate: it correctly reported bad
data, not bad code.
Verified via a fresh disk/artemis-debug-roundtrip.img: format ->
self-test PASS -> write-test PASS -> reboot -> resume -> PASS:
persist-read, confirmed 3 times in a row. The write/read/persist code,
free map, block allocator, and C-level block subsystem cache/writeback
logic are all correct.
Fix: blanked disk/artemis.img and let a normal boot format + write-test
it fresh, then verified PASS: persist-read on amd64, aarch64, AND
riscv64 against the same reformatted image -- confirming the arch-neutral
on-disk format works cross-arch too (a boot on one architecture writes
data the other two can correctly read back).
disk/artemis-debug-roundtrip.img is kept as a regression fixture, already
in a known-good passing state -- a future break here is a real
regression, not fixture rot like artemis.img turned out to be.
disk/README.md: documented both images' state, and corrected a stale
claim that these images are managed via scripts/rundisk.sh -- that
script actually targets a separate, currently-unused disks/ (plural)
directory for the hosted VM's --disk-img= flag, not this kernel-QEMU
disk/ (singular) one.
Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
