Index: utils.c
===================================================================
--- utils.c	(revision 26507)
+++ utils.c	(working copy)
@@ -65,7 +65,7 @@
 static void swap(void **x, void **y);
 /* HEADERIZER END: static */
 
-#define move_reg(from, dest, c) (c)->mov((c)->interp, (dest), (from), (c)->info)
+#define move_reg(from, dest, c) (c)->mov((c)->interp, (unsigned char)(dest), (unsigned char)(from), (c)->info)
 
 /*