diff --git a/kernel/x86_64/zscal_microk_bulldozer-2.c b/kernel/x86_64/zscal_microk_bulldozer-2.c
index 03882d6b6..1ce59d2c7 100644
--- a/kernel/x86_64/zscal_microk_bulldozer-2.c
+++ b/kernel/x86_64/zscal_microk_bulldozer-2.c
@@ -116,11 +116,11 @@ static void zscal_kernel_8( BLASLONG n, FLOAT *alpha, FLOAT *x)
 	"vzeroupper					    \n\t"
 
 	:
-        : 
-	  "r" (n),  	// 0
-          "r" (x),      // 1
+	  "+r" (n),  	// 0
+          "+r" (x),     // 1
+	:
           "r" (alpha)   // 2
-	: "cc", //"%0", "%1",
+	: "cc",
 	  "%xmm0", "%xmm1", "%xmm2", "%xmm3", 
 	  "%xmm4", "%xmm5", "%xmm6", "%xmm7", 
 	  "%xmm8", "%xmm9", "%xmm10", "%xmm11", 
@@ -208,11 +208,11 @@ static void zscal_kernel_8_zero_r( BLASLONG n, FLOAT *alpha, FLOAT *x)
 	"vzeroupper					    \n\t"
 
 	:
-        : 
-	  "r" (n),  	// 0
-          "r" (x),      // 1
+	  "+r" (n),  	// 0
+          "+r" (x),     // 1
+	:
           "r" (alpha)   // 2
-	: "cc", //"%0", "%1",
+	: "cc",
 	  "%xmm0", "%xmm1", "%xmm2", "%xmm3", 
 	  "%xmm4", "%xmm5", "%xmm6", "%xmm7", 
 	  "%xmm8", "%xmm9", "%xmm10", "%xmm11",