--- frysk-0.4/frysk-sys/jnixx/Printer.java.dist	2017-02-10 17:14:52.993596017 -0500
+++ frysk-0.4/frysk-sys/jnixx/Printer.java	2017-02-10 17:15:20.770189841 -0500
@@ -318,6 +318,8 @@
 	    || name.equals("xor")
 	    || name.equals("not")
 	    || name.equals("register")
+	    || name.equals("signed")
+	    || name.equals("unsigned")
 	    ) {
 	    return name + "$";
 	} else {