* FW1 F67 adjudication probe (2026-08-30): the foundry-entry fixture's
* F67-F79 segment floods building a9b40036's portals in the order
* 116,118,11d while the offline replay orders 11d,116,118. The microscope
* pins the flip to the ROOT plane of 0036's drawing BSP (N=(0,0,-1)
* D=2.8): the replay's building-local eye z is 2.33 (d=+0.47), retail
* behaves as d < 0. This probe dumps the viewpoint retail's walk actually
* uses, adjudicating the ~0.5 m frame question (positionPush(2) /
* part-scale semantics).
*
* USE: stand OUTSIDE the Holtburg foundry (building a9b40036) roughly
* where foundry-entry F67+ was captured: near the entrance, close enough
* that the interior is visible through the door. Attach:
*   & "C:\Program Files (x86)\Windows Kits\10\Debuggers\x86\cdb.exe" `
*       -pn acclient.exe -cf tools\walk-oracle\fw1-f67-viewpoint-probe.cdb `
*       *>&1 | Tee-Object -FilePath fw1-f67-probe.log
* Auto-detaches after 40 hits.
.logopen C:\Users\erikn\source\repos\acdream\fw1-f67-probe.log
.sympath C:\Users\erikn\source\repos\acdream\refs
.symopt+ 0x40
.reload /f acclient.exe

r $t0 = 0
* BSPTREE::build_draw_portals_only — dump the frame's viewpoint (the
* value the plane-side tests read) plus the root node's plane. ecx = the
* BSPTREE. FrameCurrent->viewer.viewpoint: resolve the frameContext
* layout live with `dt acclient!frameContext` first if offsets drift.
bp acclient!BSPTREE::build_draw_portals_only "r $t0 = @$t0 + 1; .printf \"WALK tree=%08x pass=%d\\n\", @ecx, poi(@esp+4); .printf \"  viewpoint: \"; dd poi(acclient!Render::FrameCurrent)+0x0 L0; df poi(acclient!Render::FrameCurrent)+0x40 L3; .if (@$t0 >= 40) { qd } .else { gc }"
g