diff --git a/a8/sysutils.cc b/a8/sysutils.cc
index 5e47ea9..c1ed487 100644
--- a/a8/sysutils.cc
+++ b/a8/sysutils.cc
@@ -175,7 +175,7 @@ namespace a8
 
     long long MakeInt64(int low32, int high32)
     {
-        return low32 + ((long long)high32 >> 32);
+        return low32 + ((long long)high32 << 32);
     }
 
     int Low32(long long int64_val)
@@ -185,7 +185,7 @@ namespace a8
 
     int High32(long long int64_val)
     {
-        return (int)(int64_val << 32);
+        return (int)(int64_val >> 32);
     }
 
 }