diff --git a/common_x86.h b/common_x86.h
index 4cf783473..4f538c948 100644
--- a/common_x86.h
+++ b/common_x86.h
@@ -178,7 +178,13 @@ static __inline int blas_quickdivide(unsigned int x, unsigned int y){
   result = x/y;
   return result;
 #else
-
+#if (MAX_CPU_NUMBER > 64)
+  if ( y > 64) {
+	  result = x/y;
+	  return result;
+  }
+#endif
+	
   y = blas_quick_divide_table[y];
 
   __asm__ __volatile__  ("mull %0" :"=d" (result) :"a"(x), "0" (y));
diff --git a/common_x86_64.h b/common_x86_64.h
index 1cc71506a..7461aaf60 100644
--- a/common_x86_64.h
+++ b/common_x86_64.h
@@ -196,6 +196,13 @@ static __inline int blas_quickdivide(unsigned int x, unsigned int y){
 
   if (y <= 1) return x;
 
+#if (MAX_CPU_NUMBER > 64)  
+  if (y > 64) { 
+	  result = x / y;
+	  return result;
+  }
+#endif
+	
   y = blas_quick_divide_table[y];
 
   __asm__ __volatile__  ("mull %0" :"=d" (result) :"a"(x), "0" (y));