diff --git a/sm3/sm3blocks_s390x.s b/sm3/sm3blocks_s390x.s
index 3055fe9..b957538 100644
--- a/sm3/sm3blocks_s390x.s
+++ b/sm3/sm3blocks_s390x.s
@@ -59,7 +59,7 @@ GLOBL mask<>(SB), 8, $64
 	VERLLF $n, s, r
 
 #define loadWordByIndex(W, i) \
-	VL (4*i)(statePtr), W
+	VL (16*i)(statePtr), W
 
 // one word is 16 bytes
 #define prepare4Words \
@@ -214,7 +214,7 @@ TEXT ·blockMultBy4(SB), NOSPLIT, $0
 	MOVD $0, srcPtrPtr
 
 	MOVD $·_K+0(SB), R3
-/*
+
 loop:
 	// save state
 	VLR a, aSave
@@ -313,7 +313,7 @@ loop:
 
 	SUB $1, blockCount
 	CMPBGT blockCount, $0, loop
-*/
+
 	TRANSPOSE_MATRIX(a, b, c, d, M0, M1, M2, M3, TMP0, TMP1, TMP2, TMP3)
 	TRANSPOSE_MATRIX(e, f, g, h, M0, M1, M2, M3, TMP0, TMP1, TMP2, TMP3)