feat: GF-T fully-on-chip 2-layer XOR trainer (perceptron output)

[gHashTag]

New spec gft_xorpercep.t27 — fully-on-chip 2-layer XOR: fixed hidden relu features + trainable perceptron output (no hard-sigmoid). In-spec PASS; GF-T sim converges XOR 4/4. Honest note: as one design (19.5M) it exceeds the openXC7 correctness ceiling (silicon responds but never updates), which REFINES the ceiling to ~17-18M (works <=16.7M, fails >=19.5M). Working on-chip XOR = split (fixed hidden off-chip + output on the 16.7M logistic bitstream, cycle 53). docs/NOW.md updated. Refs #1764

[github-actions]

PR Dashboard

Generated at: 2026-08-07 03:28:09 UTC

• feat: GF-T fully-on-chip 2-layer XOR trainer (perceptron output) #1827 feat: GF-T fully-on-chip 2-layer XOR trainer (perceptron output) | Created: 2026-08-07 | Updated: 2026-08-07 | 11 failing / 15 total
• feat(igla): Wave Loop 883 — module-scope [585][2]^6 Pt non-power-of-two outer-dimension array-of-struct variable from call with indexed signed writes #1815 feat(igla): Wave Loop 883 — module-scope [585][2]^6 Pt non-power-of-two outer-dimension array-of-struct variable from call with indexed signed writes | Created: 2026-08-06 | Updated: 2026-08-06 | 0 failing / 1 total
• feat(igla): Wave Loop 882 — module-scope [583][2]^6 Pt non-power-of-two outer-dimension array-of-struct variable from call with indexed signed writes #1813 feat(igla): Wave Loop 882 — module-scope [583][2]^6 Pt non-power-of-two outer-dimension array-of-struct variable from call with indexed signed writes | Created: 2026-08-06 | Updated: 2026-08-06 | 0 failing / 12 total
• feat(igla): Wave Loop 881 — module-scope [581][2]^6 Pt non-power-of-two outer-dimension array-of-struct variable from call with indexed signed writes #1810 feat(igla): Wave Loop 881 — module-scope [581][2]^6 Pt non-power-of-two outer-dimension array-of-struct variable from call with indexed signed writes | Created: 2026-08-06 | Updated: 2026-08-06 | 0 failing / 12 total

Summary

Status	Count
Total Open PRs	4
PRs with Failing Checks	0
PRs with All Checks Green	4
READY	3
FAILING	0
PENDING	0

Seal Status

• ⚠️ STALE -- sha256(compiler.rs)=4c1aaad5309a != manifest seal=87e5cbd3ad94.
  The committed NMSE numbers were certified against an older compiler.rs.
  Run scripts/reseal-check.sh locally for the two-step reseal command (advisory; not a merge gate).

[github-actions]

📓 NotebookLM Notebook linked to this PR

• Notebook ID: b83263109fb055dc
• URL: https://notebooklm.google.com/notebook/b83263109fb055dc

This notebook contains session context, decisions, and artifacts for this work.