归档分析脚本到 analysis/reverse_tools（compare_live/verify_nuc/verify_full/parse_ddt/parse_pcap），更新 session_state 引用路径

2026-08-19 15:55:21 +08:00
parent 0d83c625d1
commit dd52469377
6 changed files with 395 additions and 4 deletions
@@ -0,0 +1,94 @@
+import struct, os
+
+d = r"C:\Project\MAG160C\analysis\pairs_recheck_20260811"
+npix = 19200
+nsegs = 3
+
+def load16(name, n):
+    b = open(os.path.join(d, name), "rb").read()
+    return struct.unpack_from("<%dH" % n, b, 0)
+
+def loadi16(name, n):
+    b = open(os.path.join(d, name), "rb").read()
+    return struct.unpack_from("<%dh" % n, b, 0)
+
+f20 = load16("pair_000.f20", npix)
+ref = load16("pair_000.ref", npix)
+raw = load16("pair_000.raw", npix)
+
+# working tables (from build-artifacts, verified = interp of EP2/EP3)
+gain = load16(r"C:\Project\MAG160C\build-artifacts\mag160c_official_nuc_gain.bin", npix*nsegs*2)
+thr = loadi16(r"C:\Project\MAG160C\build-artifacts\mag160c_official_nuc_thr.bin", npix*(nsegs-1))
+
+# blind records from DDT (all endpoints identical; use EP2)
+ddt = open(r"C:\Project\MAG160C\analysis\ida\Core160043865.ddt", "rb").read()
+thr_ep0 = 0x80
+block = (nsegs-1)*npix*2 + 1024 + nsegs*npix*4
+blind_off = thr_ep0 + 6*block
+recs = []
+for i in range(32):
+    r = blind_off + i*40
+    target, typ = struct.unpack_from("<II", ddt, r)
+    neigh = struct.unpack_from("<8I", ddt, r+8)
+    recs.append((target, typ, neigh))
+print("blind recs:", len(recs), "first:", recs[0])
+
+def blind_apply(buf, recs):
+    out = list(buf)
+    for (t, typ, ng) in recs:
+        if typ == 3:
+            v = out[ng[0]] + out[ng[1]] + out[ng[2]]
+            out[t] = v // 3
+        elif typ == 4:
+            v = out[ng[0]] + out[ng[1]] + out[ng[2]] + out[ng[3]]
+            out[t] = v >> 2
+        elif typ == 5:
+            v = out[ng[0]] + out[ng[1]] + out[ng[2]] + out[ng[3]] + out[ng[4]]
+            out[t] = v // 5
+        elif typ == 6:
+            v = sum(out[ng[j]] for j in range(6))
+            out[t] = v // 6
+        elif typ == 7:
+            v = sum(out[ng[j]] for j in range(7))
+            out[t] = v // 7
+        elif typ == 8:
+            v = sum(out[ng[j]] for j in range(8))
+            out[t] = v >> 3
+    return out
+
+# NUC with exact official math
+nuc = [0]*npix
+for i in range(npix):
+    d2 = (int(f20[i]) - int(ref[i])) >> 1
+    seg = 0
+    if d2 > thr[i*2]:
+        seg = 1
+        if d2 > thr[i*2+1]:
+            seg = 2
+    p = (seg*npix + i)*2
+    v = (gain[p] * d2) >> 12 + gain[p+1]  # CAREFUL: precedence! official: off + ((gain*d2)>>12)
+    v = gain[p+1] + ((gain[p] * d2) >> 12)
+    if v < 0: v = 0
+    if v > 65535: v = 65535
+    nuc[i] = v
+
+# stats before blind
+diff = sum(1 for i in range(npix) if nuc[i] != raw[i])
+sad = sum(abs(nuc[i]-raw[i]) for i in range(npix))
+print(f"NUC only: diff={diff}/{npix} MAE={sad/npix:.4f}")
+
+# apply blind comp
+out = blind_apply(nuc, recs)
+diff2 = sum(1 for i in range(npix) if out[i] != raw[i])
+sad2 = sum(abs(out[i]-raw[i]) for i in range(npix))
+print(f"NUC+blind: diff={diff2}/{npix} MAE={sad2/npix:.4f}")
+
+# list mismatch pixels
+mism = [(i, nuc[i], out[i], raw[i]) for i in range(npix) if out[i] != raw[i]]
+print("mismatches:", len(mism))
+for m in mism[:15]:
+    print("  pix", m)
+
+# blind target pixels check
+for (t, typ, ng) in recs:
+    print(f"  rec target={t} type={typ} neigh={list(ng[:typ-2])}")