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Preserve Tier2 loader and clone-seed handoff

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Jan Petykiewicz 2026-04-21 19:03:58 -07:00
commit e57b07c9bc
5 changed files with 29 additions and 8 deletions
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14
docs/control-loop-atlas/runtime-roots-camera-and-support-families.md
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@ -1410,11 +1410,15 @@
layouts, not to the live `0x005c93cc` candidate rows.
The positive candidate-side bound is tighter now too: `0x004120b0` explicitly declares
`[candidate+0xba]` and `[candidate+0xbb]` as one-byte parser fields through `0x00531150`, and
the later helper `0x00412d70` can clone an already-materialized whole candidate row through
`rep movsl`, including those bytes, before `0x00412f02` picks the `Port%02d` vs `Warehouse%02d`
naming branch from cloned bit `[candidate+0xba]`. So the unresolved Tier-2 seam is no longer
“find any direct writer to candidate `+0xba/+0xbb`”; it is “find the earlier seed or projection
owner that first makes some source/live rows reach that clone path with nonzero bank bytes.”
the later helper `0x00412d70` does not consume them vaguely. It runs two explicit passes, first
accepting only nonzero `[candidate+0xba]` rows and then only nonzero `[candidate+0xbb]` rows,
remembers one availability-qualified seed row, prefers an existing target whose ordinal field
`[candidate+0x794]` already matches, and otherwise clones one whole `0x1f2`-dword candidate body
through `rep movsl`, including those bytes, before `0x00412f02` picks the `Port%02d` vs
`Warehouse%02d` naming branch from cloned bit `[candidate+0xba]`. So the unresolved Tier-2 seam
is no longer “find any direct writer to candidate `+0xba/+0xbb`”; it is “find the earlier seed
or projection owner that first makes some source/live rows reach that clone path with nonzero
bank bytes.”
The top-level stock handoff above that clone pass is tighter now too. Direct disassembly of
`0x004196c0` shows the broader stock `*.bca` rebuild loop formatting the wildcard path rooted at
`0x005c93fc`, iterating the local `0x005c8190/0x005c8194/0x005c819c` find-first/find-next