diff --git a/sm3/sm3blocks_s390x.s b/sm3/sm3blocks_s390x.s
index b957538..17dcd8a 100644
--- a/sm3/sm3blocks_s390x.s
+++ b/sm3/sm3blocks_s390x.s
@@ -127,38 +127,38 @@ GLOBL mask<>(SB), 8, $64
 	ROUND_00_11(index, const, a, b, c, d, e, f, g, h)     \
 
 #define ROUND_16_63(index, const, a, b, c, d, e, f, g, h) \
-	MESSAGE_SCHEDULE(index)          \ // V11 is Wt+4 now, Pls do not use it
+	MESSAGE_SCHEDULE(index)          \ // TMP1 is Wt+4 now, Pls do not use it
 	PROLD(a, TMP0, 12)               \
-	VLR TMP0, TMP1                   \
+	VLR TMP0, TMP4                   \
 	VLREPF (index*4)(R3), TMP2       \
 	VAF TMP2, TMP0, TMP0             \
 	VAF e, TMP0, TMP0                \
 	PROLD(TMP0, TMP2, 7)             \ // TMP2 = SS1
-	VX TMP2, TMP1, TMP0              \ // TMP0 = SS2
+	VX TMP2, TMP4, TMP0              \ // TMP0 = SS2
 	VO a, b, TMP3                    \
-	VN a, b, TMP1                    \
+	VN a, b, TMP4                    \
 	VN c, TMP3, TMP3                 \
-	VO TMP1, TMP3, TMP1              \ // (a AND b) OR (a AND c) OR (b AND c)
-	VAF TMP1, d, TMP1                \ // (a AND b) OR (a AND c) OR (b AND c) + d
+	VO TMP4, TMP3, TMP4              \ // (a AND b) OR (a AND c) OR (b AND c)
+	VAF TMP4, d, TMP4                \ // (a AND b) OR (a AND c) OR (b AND c) + d
 	loadWordByIndex(TMP3, index)     \ // Wj
-	VX TMP3, TMP4, TMP4              \ // Wj XOR Wj+4
-	VAF TMP1, TMP4, TMP1             \ // (a AND b) OR (a AND c) OR (b AND c) + d + (Wt XOR Wt+4)
-	VAF TMP1, TMP0, TMP1             \ // TT1
+	VX TMP3, TMP1, TMP1              \ // Wj XOR Wj+4
+	VAF TMP4, TMP1, TMP4             \ // (a AND b) OR (a AND c) OR (b AND c) + d + (Wt XOR Wt+4)
+	VAF TMP4, TMP0, TMP4             \ // TT1
 	VAF h, TMP3, TMP3                \ // Wt + h
 	VAF TMP2, TMP3, TMP3             \ // Wt + h + SS1
-	VX f, g, TMP4                    \
-	VN TMP4, e, TMP4                 \
-	VX g, TMP4, TMP4                 \ // (f XOR g) AND e XOR g
-	VAF TMP3, TMP4, TMP3             \ // TT2
-	VLR b, TMP4                      \
-	PROLD(TMP4, b, 9)                \ // b = b <<< 9
-	VLR TMP1, h                      \ // h = TT1
-	VLR f, TMP4                      \
-	PROLD(TMP4, f, 19)               \ // f = f <<< 19
-	PROLD(TMP3, TMP4, 9)             \ // TMP4 = TT2 <<< 9
-	PROLD(TMP4, TMP0, 8)             \ // TMP0 = TT2 <<< 17
-	VX TMP3, TMP4, TMP4              \ // TMP4 = TT2 XOR (TT2 <<< 9)
-	VX TMP4, TMP0, d                 \ // d = TT2 XOR (TT2 <<< 9) XOR (TT2 <<< 17)
+	VX f, g, TMP1                    \
+	VN TMP1, e, TMP1                 \
+	VX g, TMP1, TMP1                 \ // (f XOR g) AND e XOR g
+	VAF TMP3, TMP1, TMP3             \ // TT2
+	VLR b, TMP1                      \
+	PROLD(TMP1, b, 9)                \ // b = b <<< 9
+	VLR TMP4, h                      \ // h = TT1
+	VLR f, TMP1                      \
+	PROLD(TMP1, f, 19)               \ // f = f <<< 19
+	PROLD(TMP3, TMP1, 9)             \ // TMP1 = TT2 <<< 9
+	PROLD(TMP1, TMP0, 8)             \ // TMP0 = TT2 <<< 17
+	VX TMP3, TMP1, TMP1              \ // TMP1 = TT2 XOR (TT2 <<< 9)
+	VX TMP1, TMP0, d                 \ // d = TT2 XOR (TT2 <<< 9) XOR (TT2 <<< 17)
 
 // func copyResultsBy4(dig *uint32, dst *byte)
 TEXT ·copyResultsBy4(SB),NOSPLIT,$0