diff --git a/docs/04_gdn_chunkwise.md b/docs/04_gdn_chunkwise.md
index 52ce8bc..2b55745 100644
--- a/docs/04_gdn_chunkwise.md
+++ b/docs/04_gdn_chunkwise.md
@@ -14,3 +14,5 @@ Chunk C=64: intra-chunk = matmuls C×S triangulaire, inter-chunk = state. Les ra
 2. inner GEMM → HMX fp16, comparer dérive vs CPU (prefill tolère, KV only). Bench 93→?
 3. VTCM pour state inter-chunk (déjà au tg). Cible 150.
 Risque: HMX fp16 accum non bit-exact — OK prefill (decode CPU exact). Frontière, aide partielle structure/debug.
+
+## P0 fait (26/05): oracle = `test-backend-ops -o GATED_DELTA_NET -b HTP0` = 28/28 OK (hs64, 256tok, kda). Gate régression. K>1 non-sup=decode, hors prefill. baseline pp512=93. build: ninja .../libggml-htp-v79.so. P1 en cours.