diff --git a/SM3性能优化.md b/SM3性能优化.md
index 51644e0..3814498 100644
--- a/SM3性能优化.md
+++ b/SM3性能优化.md
@@ -60,6 +60,12 @@ https://software.intel.com/sites/landingpage/IntrinsicsGuide/
 SM3的第一版，比SHA256复杂：
 
     // Wj ← P1(Wj−16 ⊕ Wj−9 ⊕ (Wj−3 ≪ 15)) ⊕ (Wj−13 ≪ 7) ⊕ Wj−6
+	// Transpose data into high/low parts
+	VPERM2I128 $0x20, XTMP2, XTMP0, XDWORD0 // w3, w2, w1, w0
+	VPERM2I128 $0x31, XTMP2, XTMP0, XDWORD1 // w7, w6, w5, w4
+	VPERM2I128 $0x20, XTMP3, XTMP1, XDWORD2 // w11, w10, w9, w8
+	VPERM2I128 $0x31, XTMP3, XTMP1, XDWORD3 // w15, w14, w13, w12
+
     VPALIGNR $12, XDWORD0, XDWORD1, XTMP0; \ // XTMP0 = W[-13] = {w6,w5,w4,w3}
     VPSLLD   $7, XTMP0, XTMP1;             \
     VPSRLD   $(32-7), XTMP0, XTMP0;        \