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feat: GF-T standalone smul + sadd datapath cores (microsequencer) - #1863

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feat: GF-T standalone smul + sadd datapath cores (microsequencer)#1863
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gft_smul.t27 (signed GF-T16 multiply) and gft_sadd.t27 (signed GF-T16 add) exposed as standalone modules. Tests 3/3 each. Purpose: shared datapath cores for a microsequenced full 2-layer backprop -- an FSM reuses ONE smul + ONE sadd + gft_madd (feeding operands cycle-by-cycle) instead of many multipliers, so the design fits under the ~17M ceiling. Forward once, intermediates in registers, updates sequenced. docs/NOW.md updated. Refs #1764

gft_smul.t27 (signed GF-T16 multiply) and gft_sadd.t27 (signed GF-T16 add) --
the two GF-T ops exposed as standalone modules (previously only helper fns).
Tests 3/3 each PASS.

Purpose: shared datapath cores for a microsequenced full 2-layer backprop.
Instead of many multipliers (naive backprop ~22M, over the ~17M ceiling), an FSM
reuses ONE smul + ONE sadd + gft_madd, feeding operands cycle-by-cycle -> tiny
area. Forward once, intermediates in registers, updates sequenced.

Refs #1764

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
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PR Dashboard

Generated at: 2026-08-07 10:37:20 UTC

Summary

Status Count
Total Open PRs 12
PRs with Failing Checks 0
PRs with All Checks Green 12
READY 5
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).

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📓 NotebookLM Notebook linked to this PR

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

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gHashTag merged commit e5f444d into master Aug 7, 2026
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gHashTag deleted the feat/gft-datapath-cores branch August 7, 2026 10:38
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