feat(v4.0.0): the nucleus is a capsule, sent to a node born empty
MESH.md step 2. A capsule of F18 code is the words a neighbour writes to a node's port: for each stretch of memory, "@p a! @p push", the address and count, "@p !+ unext" and the words; then a jump to the start. A node born empty executes that from its port, so it needs nothing in it beforehand. - capsule.h/.c: v4_capsule_write, any node's memory as such a capsule - mkimage writes the nucleus so, to capsules/v4/nucleus-64.f18, and the addresses a host needs as a C file; the memory image is no longer linked into either product - mkcapsule is unchanged: the nucleus capsule is a built file kept under capsules/, as BLOCK_MAP.md is, and is baked, hashed and signed with the rest - boot: the node is born empty (v4_image_born); the nucleus capsule is found, its hash and signature checked, and given to the node a word at a time as it reads its port; PARITY:V4_NUCLEUS carries its name and hash Verified: test_fabric.c (59 checks, both widths, and under ASan and UBSan): a memory with a programme and scattered words arrives word for word in an empty node and runs. The nucleus capsule rebuilds byte for byte. hosted-check passes on three ISAs; clean qemu with STARFORTH_V4=1 on amd64, aarch64 and riscv64 takes the nucleus in, passes POST (550 of 550) and answers lines typed at each prompt (logs/20261006-102421, -102706, -103048). Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
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rajames
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Claude Opus 5.5
Claude Opus 5.5
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42610e844f
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UEFI firmware (version 2025.11-3ubuntu7.3 built at 15:40:26 on Sep 23 2026)
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[2J[001;001H[=3h[2J[001;001H[2J[001;001H[8;031;100t[2J[001;001HBdsDxe: failed to load Boot0002 "UEFI Misc Device" from PciRoot(0x0)/Pci(0x2,0x0): Not Found
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BdsDxe: failed to load Boot0003 "UEFI QEMU QEMU USB HARDDRIVE 1-0000:00:04.0-1" from PciRoot(0x0)/Pci(0x4,0x0)/USB(0x0,0x0): Not Found
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BdsDxe: loading Boot0004 "UEFI Misc Device 2" from PciRoot(0x0)/Pci(0x6,0x0)
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BdsDxe: starting Boot0004 "UEFI Misc Device 2" from PciRoot(0x0)/Pci(0x6,0x0)
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[2J[001;001H[=3h[2J[001;001HStarKernel UEFI Loader
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Loading kernel from ESP...
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[CKPT 001] Entered efi_main - ConOut live
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Collecting boot information...
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[CKPT 004] Command line parsed
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[CKPT 005] Kernel stack allocation decided
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[CKPT 006] Boot info collected (ACPI table located)
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[CKPT 007] GOP: linear framebuffer found
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[CKPT 008] About to enter ExitBootServices retry loop
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_____ _ _ __ _
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/ ____| | | |/ / | |
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| (___ | |_ __ _ _ __| ' / ___ _ __ _ __ ___| |
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\___ \| __/ _` | '__| < / _ \ '__| '_ \ / _ \ |
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____) | || (_| | | | . \ __/ | | | | | __/ |
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|_____/ \__\__,_|_| |_|\_\___|_| |_| |_|\___|_|
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LithosAnanke v2.1.0
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Architecture: aarch64
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Build: Oct 6 2026 10:26:41
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UEFI BootServices: EXITED
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=== StarKernel Boot Information ===
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Memory map entries: 108
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Total memory: 4093 MB
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Usable memory: 4056 MB
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===================================
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PMM initialized.
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PMM statistics:
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Total pages: 1039869
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Free pages : 1038458
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Used pages : 1411
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Total MB : 4061
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Free MB : 4056
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Used MB : 5
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VMM initialized (mapped RAM, CR3 switched)
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VMM initialized (mapped RAM, CR3 switched)
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VMM self-test: mapped OK at 0xffff800000000000
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VMM self-test complete.
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AArch64: running at EL1
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IDT installed.
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APIC: init...
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PSCI: no DTB -- using HVC (QEMU virt-machine default)
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GICv2: no DTB GIC node -- using QEMU virt-machine defaults
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GICv2: distributor+CPU interface enabled, PPI 30
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APIC: init done
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Timer: init...
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Timer: AArch64 generic timer initialised.
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Timer: init done
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Kernel heap initialized.
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Heap statistics:
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Total bytes: 2147483608
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Free bytes: 2147483608
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Used bytes: 0
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Peak bytes: 0
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Heap base addr: 1207959552
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Heap end addr: 3355443200
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Heartbeat: init...
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Heartbeat: init done
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Kernel initialization complete.
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Boot successful!
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StarForth v4: one host node, the F18-derived engine
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V4: capsule v4:nucleus-64.f18 signature: missing (unsigned)
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PARITY:V4_NUCLEUS name=v4:nucleus-64.f18 capsule_id=0xbcc90cc5a638a299 capsule_hash=0xbcc90cc5a638a299 words=298
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V4: capsule v4:forth79.4th signature: missing (unsigned)
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PARITY:V4_CAPSULE name=v4:forth79.4th capsule_id=0x4055641ee17d176b capsule_hash=0x4055641ee17d176b dict_hash=0x88fb8dcbb051f7b9
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V4: capsule v4:post79.4th signature: missing (unsigned)
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PARITY:V4_POST tests=550 pass=550 fail=0
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PARITY:V4_CAPSULE name=v4:post79.4th capsule_id=0xb987dbb4388990bd capsule_hash=0xb987dbb4388990bd dict_hash=0x843716689a31b60a
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PARITY:OK
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POST: PASSED
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ok> : SQ DUP * ;
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ok
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ok> 7 SQ . 3 4 U* . .
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49 0 12 ok
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ok> COLD
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FORTH-79 Cold Start
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System initialized.
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ok
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ok> 3 4 U* . .
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0 12 ok
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ok> FORGET U*
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Protected word
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ERROR
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ok> 9 KERNEL-WORD ASK9 ASK9
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Argument out of range
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ERROR
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ok> BYE
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BYE: cold restart
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