Hex-tenant probe (D-GTM-0m), mask_shift_morton (D-GTM-1m), and the gated *_to_mask_under family (D-MRX-0) - #307

Merged

AdaWorldAPI merged 9 commits into

claude/clone-repositories-71a5sw

Sep 14, 2026

Commits on Sep 14, 2026

Add the hex-tenant probe (D-GTM-0m): top-down + spread on one Morton-keyed SoA

AdaWorldAPI
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claude
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d9459f0
Spec the Morton hex neighbour shift (D-GTM-1m, plan section 15)

AdaWorldAPI
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claude
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df7fe9c
Fill U64x8 Shl/Shr on the AVX2 and nightly-simd backends

AdaWorldAPI
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d11dd0f
Add mask_shift_morton (D-GTM-1m): the hex neighbour shift as a word-level op

AdaWorldAPI
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claude
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255c36d
Hex-tenant probe: node-span shift arms — n = 17.0 -> 5.7 us (-66 %)

AdaWorldAPI
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claude
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855bc73
simd_masking_ops: *_to_mask_under — the ten gated predicates on one survivor-skip engine
claude
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454fb43
simd-masking-parity: 0xAxx gated-predicate group (10 groups); blackboard D-MRX-0
claude
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53e4723
simd_masking_ops: council fixes for #307 — shift-count guards, sub-span law, accumulate falsifier
claude
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e5a87e6
hex probe: heap gate asserts; U64x8 shift operators get doctests
claude
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3a124bb