test_host_mesh.c, 220 checks: three exchanges on the row of three -- text
from the console for node 12 with what it prints and how it ended; node 11
SENDing node 12 text and waiting for its answer; a message node 12 has no
way for and its NACK to node 10 -- are each played once for every engine
step they take with node 11 removed at that step, and again with node 12:
17,642 removals at 64 bits. Every node left comes to rest asleep, blocked
at no port and in no operation, and answers. What is typed is a word
defined beforehand, so that the steps are the exchange's and not the
dictionary being searched.
Removed from the engine, nothing using them: v4_fabric_interrupt_error, a
device's pending hook, v4_node_words_since_look, V4_ERROR_INTERRUPTED.
MESH.md: 4.1's table has the addresses after the ports; 7a and 7b say what
of them still holds; 7b.7's limit is closed; step 6e is written up.
v4/README.md likewise.
make -C v4 test and sanitize at both widths, hosted-check, lint. Three
bare-metal boots with the typed session and a loop printing 400 numbers:
logs/20261013-165124 (amd64), -165428 (aarch64), -165818 (riscv64). POST
538 of 538, word_count=317, dict_hash=0x0951d7e02e251554 on all six, and
the three sessions are the same character for character. The boots were
built with the working tree's uncommitted change to kernel/Makefile that
adds the ISA to the kernel's version line; nothing else differs from this
commit.
The plan's final review is not done yet.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
- Engine: a wire keeps whether the message at its mark is the one last
looked at; a node's take, move and drop of any other answer 3 and write
nothing (MESH.md 7d.3). A wire cut and made again between a look and a
take no longer has a NACK done as text, or 256 cells written where one
was looked for.
- Engine: v4_fabric_wire_kernel wires a kernel to a port with no queues;
a message for it is refused at once, error 18, on a mesh as on the
products.
- The result of a drop is looked at; a take that does not take has the
message dropped, or gone past: nothing goes round.
- An answer nobody waits for is let go uncounted; (LOST) counts what should
have been delivered or acted on and was not. The flood's account is
exact.
- Error 18 from under a word that was printing empties the data stack, as
a fault does: that word's own values are not left there.
- Tests: the take and drop windows cut at every step, with and without
another message put; a refusal owed to a stuck node whose wire is full.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
- The result of every take is looked at: a wire cut between the look and
the take leaves nothing acted on (the text before run again, a refusal
counted, a wait ended by an old answer, a way forgotten).
- A node with no room to pass on what another printed, or its word of how
text ended, leaves it on the wire it came by and moves it when there is
room; what is behind it for the same port waits too. Sleep for room (9)
is woken by room on any of the node's wires (engine; MESH.md 7d.3).
- The lone node's host keeps no queue for the kernel's port: a message to
it is error 18. The step limit is counted while the node waits for room.
- A text waiting for room to print is not interrupted by console text;
AWAIT is, as before. (BREAK?) is gone.
- A GONE is believed only by the centre's port; unawaited answers let go
are counted; nothing past a message's last character goes on a wire;
AWAIT sets (AWAIT-FROM) only once the stack has been tried.
- test_host_depth.c: ten paths, each run works or ends in one named stack
error; it fails with (ROOM) or (ROOM-SERVE) taken out.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Step 6e, tasks 2 and 3 (docs/v4.0.0/MESH.md 7d). The nucleus puts, looks
at, takes, moves and drops whole messages through the six addresses after
its ports; its own ring of messages waiting, the refusals owed, (GATE) and
the looking words' use are gone. SEND, an answer, a NACK and a GONE go or
are refused at once; what a text prints waits for room; a text is not
begun until the wire its answer goes by has room for it, and that room is
kept. The lone node's host (v4/system/boot.c) keeps its two wires and
does its operations; the test hosts' consoles put and take whole messages
through the fabric. New: tests/test_host_depth.c, every message path of
a mesh node at every depth of both stacks.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
