diff --git a/SM3性能优化.md b/SM3性能优化.md
index dcebf0a..8e21bc8 100644
--- a/SM3性能优化.md
+++ b/SM3性能优化.md
@@ -82,7 +82,7 @@ SM3的第一版，比SHA256复杂，不知道有没有继续优化的空间。
     VPXOR XDWORD0, XTMP1, XTMP1;           \ // XTMP1 = W[-9] XOR W[-16]
     VPSHUFD $0xA5, XDWORD3, XTMP2;         \ // XTMP2 = W[-3] {BBAA} {w14,w14,w13,w13}
     
-    VPSLLQ  $15, XTMP2, XTMP2;             \ // XTMP2 = W[-3] rol 15 {xBxA}
+    VPSLLQ  $15, XTMP2, XTMP2;             \ // XTMP2 = W[-3] rol 15 {BxAx}
     VPSHUFB shuff_00BA<>(SB), XTMP2, XTMP2;\ // XTMP2 = W[-3] rol 15 {00BA}
     VPXOR   XTMP1, XTMP2, XTMP2;           \ // XTMP2 = W[-9] XOR W[-16] XOR (W[-3] rol 15) {xxBA}
     VPSLLD   $15, XTMP2, XTMP3;            \
@@ -97,7 +97,7 @@ SM3的第一版，比SHA256复杂，不知道有没有继续优化的空间。
     VPXOR    XTMP4, XTMP0, XTMP2;          \ // XTMP2 = {..., ..., W[1], W[0]}
     VPALIGNR $12, XDWORD3, XTMP2, XTMP3;   \ // XTMP3 = {..., W[1], W[0], w15}
     VPSHUFD $80, XTMP3, XTMP4;             \ // XTMP4 =  = W[-3] {DDCC}
-    VPSLLQ  $15, XTMP4, XTMP4;             \ // XTMP4 = W[-3] rol 15 {xDxC}
+    VPSLLQ  $15, XTMP4, XTMP4;             \ // XTMP4 = W[-3] rol 15 {DxCx}
     VPSHUFB shuff_DC00<>(SB), XTMP4, XTMP4;\ // XTMP4 = W[-3] rol 15 {DC00}
     VPXOR   XTMP1, XTMP4, XTMP4;           \ // XTMP4 = W[-9] XOR W[-16] XOR (W[-3] rol 15) {DCxx}
     VPSLLD   $15, XTMP4, XTMP5;            \