feat(v4): centre.4th and hera.4th; every node's kernel serves it (MESH.md 9a.3)
What a birthing node needs is centre.4th; KILL, PAUSE, RESUME, UNIT-KILL and CENTRE are Hera's. An outer node births, as a v3 VM may, and may not kill. A capsule is read by the node that opened it. test_host_unit: 93 checks. 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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Block 8100
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( centre.4th -- what a node that births others needs. )
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( docs/v4.0.0/MESH.md 9a. Births follow v3: any node may )
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( birth on its own ports, and is its children's parent. )
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( The kernel's requests, by their numbers in manage.h: )
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-6 KERNEL-WORD NODE-ME -7 KERNEL-WORD NODE-BORN
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-8 KERNEL-WORD NODE-WIRE -9 KERNEL-WORD NODE-UNWIRE
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-13 KERNEL-WORD NODE-PARITY -14 KERNEL-WORD CAPSULE-OPEN
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-15 KERNEL-WORD CAPSULE-CELL -16 KERNEL-WORD CAPSULE-LINE
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-17 KERNEL-WORD NODE-CHILD -18 KERNEL-WORD NODE-PLACE
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( Text for another node is built in PAD. )
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VARIABLE (T#)
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: (T0) ( -- ) 0 (T#) ! ;
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: (TC) ( c -- ) PAD (T#) @ + C! 1 (T#) +! ;
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: (TS) ( baddr u -- )
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DUP IF 0 DO DUP I + C@ (TC) LOOP DROP ELSE DROP DROP THEN ;
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Block 8101
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: (TN) ( n -- ) 0 <# #S #> (TS) 32 (TC) ;
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: (T) ( -- baddr u ) PAD (T#) @ ;
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( The node being born: its number, its place, the port of )
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( this node that leads to it, its own port that leads here, )
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( and its personality: a capsule's name, or none. )
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VARIABLE (KID) VARIABLE (KID#) VARIABLE (KIDP)
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VARIABLE (KIDC) VARIABLE (PERS) VARIABLE (PERS#)
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: (FAIL) ( -- )
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." BIRTH: node " (KID#) @ . ." did not do as it was told" CR
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-1 NODE-ERROR ! ;
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: (TOLD) ( how -- ) 1 - IF (FAIL) THEN ;
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: (TELL) ( baddr u -- ) (KID#) @ SEND (KID#) @ AWAIT (TOLD) ;
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Block 8102
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( the system, a capsule of F18 code, cell by cell to its port )
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: (NUCLEUS) ( -- )
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S" v4:nucleus-64.f18" CAPSULE-OPEN 0= IF (FAIL) THEN
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BEGIN CAPSULE-CELL WHILE (KIDP) @ PORT! REPEAT DROP ;
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( a capsule of FORTH blocks, a line at a time )
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: (LINES) ( baddr u -- ) CAPSULE-OPEN 0= IF (FAIL) THEN
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BEGIN PAD CAPSULE-LINE DUP 0< 0= WHILE PAD SWAP (TELL) REPEAT
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DROP ;
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Block 8103
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( The nodes this one has had born: for each its number and )
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( the port of this node it is on. Sixteen at most. )
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CREATE (KIDS) 32 ALLOT VARIABLE (KIDS#) 0 (KIDS#) !
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: (KID@) ( i -- addr ) 2 * (KIDS) + ;
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: (NOTE) ( number port -- )
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(KIDS#) @ 16 < IF
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(KIDS#) @ (KID@) SWAP OVER 1+ ! ! 1 (KIDS#) +!
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ELSE DROP DROP THEN ;
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: (WHICH) ( number -- i | -1 )
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-1 SWAP (KIDS#) @ DUP IF 0 DO
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DUP I (KID@) @ = IF SWAP DROP I SWAP THEN
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LOOP ELSE DROP THEN DROP ;
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: (UNLIST) ( i -- )
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(KIDS#) @ 1- DUP (KIDS#) ! (KID@) DUP @ SWAP 1+ @
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ROT (KID@) SWAP OVER 1+ ! ! ;
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Block 8104
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( Who it is, where its printing goes, which of its ports )
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( leads to everything it is not told of, and who is there. )
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: (WHO) ( -- )
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(T0) (KID#) @ (TN) S" (ME) ! " (TS)
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(CONSOLE) @ (TN) S" (CONSOLE) ! " (TS)
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(KIDC) @ (TN) S" DEFAULT-ROUTE " (TS)
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(ME) @ (TN) (KIDC) @ (TN) S" NEIGHBOUR" (TS)
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(T) 0 (KIDP) @ SEND-ON (KID#) @ AWAIT (TOLD) ;
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Block 8105
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( number port childport baddr u -- place A NODE IS BORN, )
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( its port childport joined to this one's port: empty, then )
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( the system, FORTH-79, and its personality if u is not 0. )
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: BIRTH-AS
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(PERS#) ! (PERS) ! (KIDC) ! (KIDP) ! (KID#) !
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(KID#) @ NODE-BORN DUP 0< IF (FAIL) THEN (KID) !
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NODE-ME (KIDP) @ (KID) @ (KIDC) @ NODE-WIRE 0= IF (FAIL) THEN
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(NUCLEUS)
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(KID#) @ (KIDP) @ ROUTE (KID#) @ (KIDP) @ NEIGHBOUR (WHO)
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S" v4:forth79.4th" (LINES)
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(PERS#) @ IF (PERS) @ (PERS#) @ (LINES) THEN
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S" (SEAL)" (TELL)
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(KID) @ (KID#) @ NODE-PARITY
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(KID#) @ (KIDP) @ (NOTE)
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(KID) @ ;
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Block 8106
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( number port childport -- place a node with no capsule )
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: BIRTH 0 0 BIRTH-AS ;
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( Two outer nodes are joined: port 3 of X to port 4 of Y, )
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( and each is told the other is there. )
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VARIABLE (XP) VARIABLE (XN) VARIABLE (YP) VARIABLE (YN)
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: (X) ( place number -- ) (XN) ! (XP) ! ;
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: (Y) ( place number -- ) (YN) ! (YP) ! ;
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: (SAY) ( them port me -- ) (KID#) !
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(T0) OVER (TN) DUP (TN) S" ROUTE " (TS)
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SWAP (TN) (TN) S" NEIGHBOUR" (TS) (T) (TELL) ;
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: (JOIN) ( -- )
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(XP) @ 3 (YP) @ 4 NODE-WIRE 0= IF (FAIL) THEN
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(YN) @ 3 (XN) @ (SAY) (XN) @ 4 (YN) @ (SAY) ;
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Block 8107
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( n -- A UNIT: four outer nodes, n+1 to n+4, on ports 2 )
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( to 5 of this one, each by its own port 2, and joined in a )
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( square: 1-2, 2-4, 4-3, 3-1. )
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VARIABLE (U)
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VARIABLE (P1) VARIABLE (P2) VARIABLE (P3) VARIABLE (P4)
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: (N) ( k -- number ) (U) @ + ;
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: UNIT ( n -- ) (U) !
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1 (N) 2 2 BIRTH (P1) ! 2 (N) 3 2 BIRTH (P2) !
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3 (N) 4 2 BIRTH (P3) ! 4 (N) 5 2 BIRTH (P4) !
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(P1) @ 1 (N) (X) (P2) @ 2 (N) (Y) (JOIN)
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(P2) @ 2 (N) (X) (P4) @ 4 (N) (Y) (JOIN)
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(P4) @ 4 (N) (X) (P3) @ 3 (N) (Y) (JOIN)
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(P3) @ 3 (N) (X) (P1) @ 1 (N) (Y) (JOIN) ;
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Block 8108
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( n -- NODE n IS GONE: every node this one birthed is told, )
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( as from this one, and n leaves the list if it was there. )
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( The system calls this when it believes a GONE, through )
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( GONE-HOOK in quit.f18; Hera calls it from KILL. )
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: GONE-DOWN ( n -- )
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DUP (WHICH) DUP 0< IF DROP ELSE (UNLIST) THEN
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(KIDS#) @ DUP IF 0 DO DUP I (KID@) @ GONE LOOP
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ELSE DROP THEN DROP ;
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' GONE-DOWN (GONE-HOOK) !
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+28
-109
@@ -1,111 +1,30 @@
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Block 8000
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( hera.4th -- Hera: the node that has the others born and )
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( manages them. docs/v4.0.0/MESH.md sections 9 and 10. )
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( She asks whoever holds the fabric for a node, wires it, )
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( and sends it its capsules through the port that joins )
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( them. The unit rule is here and nowhere else: four outer )
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( nodes round a centre, an outer node wired only inside its )
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( unit. )
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( Text for another node is built in PAD. )
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VARIABLE (T#)
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: (T0) ( -- ) 0 (T#) ! ;
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: (TC) ( c -- ) PAD (T#) @ + C! 1 (T#) +! ;
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: (TS) ( baddr u -- )
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DUP IF 0 DO DUP I + C@ (TC) LOOP DROP ELSE DROP DROP THEN ;
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: (TN) ( n -- ) 0 <# #S #> (TS) 32 (TC) ;
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: (T) ( -- baddr u ) PAD (T#) @ ;
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Block 8001
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( The node being born: its place in the fabric, the number )
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( it is to have, and the port of this node that leads to it. )
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VARIABLE (KID) VARIABLE (KID#) VARIABLE (KIDP)
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: (FAIL) ( -- )
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." BIRTH: node " (KID#) @ . ." did not do as it was told" CR
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-1 NODE-ERROR ! ;
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: (TOLD) ( how -- ) 1 - IF (FAIL) THEN ;
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: (TELL) ( baddr u -- ) (KID#) @ SEND (KID#) @ AWAIT (TOLD) ;
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( the nucleus, a capsule of F18 code, cell by cell to its port )
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: (NUCLEUS) ( -- )
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S" v4:nucleus-64.f18" CAPSULE-OPEN 0= IF (FAIL) THEN
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BEGIN CAPSULE-CELL WHILE (KIDP) @ PORT! REPEAT DROP ;
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( a capsule of FORTH blocks, a line at a time )
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: (LINES) ( baddr u -- ) CAPSULE-OPEN 0= IF (FAIL) THEN
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BEGIN PAD CAPSULE-LINE DUP 0< 0= WHILE PAD SWAP (TELL) REPEAT
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DROP ;
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Block 8002
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( The nodes this one has had born: for each its number and )
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( its place in the fabric. Sixteen at most. )
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CREATE (KIDS) 32 ALLOT VARIABLE (KIDS#) 0 (KIDS#) !
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: (KID@) ( i -- addr ) 2 * (KIDS) + ;
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: (NOTE) ( number place -- )
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(KIDS#) @ 16 < IF
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(KIDS#) @ (KID@) SWAP OVER 1+ ! ! 1 (KIDS#) +!
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ELSE DROP DROP THEN ;
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( which of them has that number: its place in the list, or -1 )
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: (WHICH) ( number -- i | -1 )
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-1 SWAP (KIDS#) @ DUP IF 0 DO
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DUP I (KID@) @ = IF SWAP DROP I SWAP THEN
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LOOP ELSE DROP THEN DROP ;
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Block 8003
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( who it is, where its printing goes, and that everything )
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( not told of goes by its port 2, where this node is )
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: (WHO) ( -- )
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(T0) (KID#) @ (TN) S" (ME) ! " (TS)
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(CONSOLE) @ (TN) S" (CONSOLE) ! 2 DEFAULT-ROUTE " (TS)
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(ME) @ (TN) S" 2 NEIGHBOUR" (TS)
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(T) 0 (KIDP) @ SEND-ON (KID#) @ AWAIT (TOLD) ;
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( number port -- place A NODE IS BORN on that port of )
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( this one: empty, then the nucleus, then FORTH-79. )
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: BIRTH ( number port -- place )
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(KIDP) ! (KID#) !
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(KID#) @ NODE-BORN DUP 0< IF (FAIL) THEN (KID) !
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NODE-ME (KIDP) @ (KID) @ 2 NODE-WIRE 0= IF (FAIL) THEN
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(NUCLEUS)
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(KID#) @ (KIDP) @ ROUTE (KID#) @ (KIDP) @ NEIGHBOUR (WHO)
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S" v4:forth79.4th" (LINES)
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Block 8004
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S" (SEAL)" (TELL)
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(KID) @ (KID#) @ NODE-PARITY
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(KID#) @ (KID) @ (NOTE)
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(KID) @ ;
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( Two outer nodes are joined: port 3 of X to port 4 of Y, )
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( and each is told the other is there. )
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VARIABLE (XP) VARIABLE (XN) VARIABLE (YP) VARIABLE (YN)
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: (X) ( place number -- ) (XN) ! (XP) ! ;
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: (Y) ( place number -- ) (YN) ! (YP) ! ;
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: (SAY) ( them port me -- ) (KID#) !
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(T0) OVER (TN) DUP (TN) S" ROUTE " (TS)
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SWAP (TN) (TN) S" NEIGHBOUR" (TS) (T) (TELL) ;
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: (JOIN) ( -- )
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(XP) @ 3 (YP) @ 4 NODE-WIRE 0= IF (FAIL) THEN
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(YN) @ 3 (XN) @ (SAY) (XN) @ 4 (YN) @ (SAY) ;
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Block 8005
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( n -- A UNIT: four outer nodes, n+1 to n+4, on ports 2 )
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( to 5 of this one, and joined in a square: 1-2, 2-4, 4-3, )
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( 3-1. The corners across from each other are not wired: )
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( what one sends the other goes by this node. )
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VARIABLE (U)
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VARIABLE (P1) VARIABLE (P2) VARIABLE (P3) VARIABLE (P4)
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: (N) ( k -- number ) (U) @ + ;
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: UNIT ( n -- ) (U) !
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1 (N) 2 BIRTH (P1) ! 2 (N) 3 BIRTH (P2) !
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3 (N) 4 BIRTH (P3) ! 4 (N) 5 BIRTH (P4) !
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(P1) @ 1 (N) (X) (P2) @ 2 (N) (Y) (JOIN)
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(P2) @ 2 (N) (X) (P4) @ 4 (N) (Y) (JOIN)
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(P4) @ 4 (N) (X) (P3) @ 3 (N) (Y) (JOIN)
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(P3) @ 3 (N) (X) (P1) @ 1 (N) (Y) (JOIN) ;
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Block 8006
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( n -- KILL: node n is removed, whatever it was doing. )
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( This node forgets the way to it, and every other node it )
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( has had born is told that n is gone: each forgets its way )
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( to n, and one that is waiting for n's answer stops. )
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( docs/v4.0.0/MESH.md 7b.5. As v3's KILL, by number. )
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: (UNLIST) ( i -- )
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(KIDS#) @ 1- DUP (KIDS#) ! (KID@) DUP @ SWAP 1+ @
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ROT (KID@) SWAP OVER 1+ ! ! ;
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( hera.4th -- what is Hera's alone, beside centre.4th, which )
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( she loads first. docs/v4.0.0/MESH.md 9a. She decides )
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( which nodes there are and which are awake: KILL, PAUSE and )
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( RESUME, by number, through the kernel's registry, are hers )
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( and no other node's, as v3's KILL is Hera's alone. )
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-10 KERNEL-WORD NODE-SLEEP -11 KERNEL-WORD NODE-WAKE
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-12 KERNEL-WORD NODE-KILL
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( n -- n flag a node there is, and not Hera herself )
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: (THERE?) DUP (ME) @ = 0= OVER NODE-PLACE 0< 0= AND ;
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: (NO-NODE) ( n -- ) DROP ." no such node" CR -1 NODE-ERROR ! ;
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( n -- KILL: node n is removed, whatever it was doing; this )
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( node forgets the way to it, and GONE goes down the graph. )
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: KILL ( n -- )
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DUP (WHICH) DUP 0< IF
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DROP DROP ." KILL: no such node" CR -1 NODE-ERROR ! THEN
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OVER NODE-KILL (UNLIST)
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DUP NO-ROUTE
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(KIDS#) @ DUP IF 0 DO DUP I (KID@) @ GONE LOOP ELSE DROP THEN
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DROP ;
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(THERE?) 0= IF ." KILL: " (NO-NODE) THEN
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DUP NODE-KILL DUP NO-ROUTE GONE-DOWN ;
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Block 8001
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: PAUSE ( n -- )
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(THERE?) 0= IF ." PAUSE: " (NO-NODE) THEN NODE-SLEEP ;
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: RESUME ( n -- )
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(THERE?) 0= IF ." RESUME: " (NO-NODE) THEN NODE-WAKE ;
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( n -- a unit is removed: each of n's children, then n )
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: UNIT-KILL ( n -- )
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BEGIN DUP 0 NODE-CHILD ?DUP WHILE KILL REPEAT KILL ;
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( n -- A SECOND CENTRE, node n, from its port 6 to Hera's )
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( port 6, given centre.4th; it births its unit, n+1 to n+4. )
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: CENTRE ( n -- )
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DUP 6 6 S" v4:centre.4th" BIRTH-AS DROP
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5 1 DO DUP I + 6 ROUTE LOOP DROP
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(T0) (KID#) @ (TN) S" UNIT" (TS) (T) (TELL) ;
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