diff --git a/无进位乘法和GHASH.md b/无进位乘法和GHASH.md
index cf62c2d..55b7e6c 100644
--- a/无进位乘法和GHASH.md
+++ b/无进位乘法和GHASH.md
@@ -40,15 +40,15 @@ $[A_1 : A_0] \cdot [B_1 : B_0] = [C_1:C_0 \oplus C_1 \oplus D_1 \oplus E_1 : D_1
   * $[D_1:D_0] = [B_0 \oplus C_1 : B_1 \oplus C_0]$
   * Output: $[D_1  \oplus X_3 : D_0  \oplus X_2]$
 ```asm
-; Input is in T1:T7
-vmodqa     T3, [W]
-vpclmulqda T2, T3, T7, 0x01
-vpshufd    T4, T7, 78
+; Input is in T1:T0
+vmodqa     T3, [W]               ; poly
+vpclmulqda T2, T3, T0, 0x01
+vpshufd    T4, T0, 78
 vpxor      T4, T4, T2
 vpclmulqda T2, T3, T4, 0x01
 vpshufd    T4, T4, 78
 vpxor      T4, T4, T2
-vpxor      T1, T4            ; result in T1
+vpxor      T1, T1, T4            ; result in T1
 ```
 
 # 参考