-extern char *Narm[4]; // Normal ARM Extensions for operand sizes 0,1,2\r
-extern char *Sarm[4]; // Sign-extend ARM Extensions for operand sizes 0,1,2\r
+extern const char * const Narm[4]; // Normal ARM Extensions for operand sizes 0,1,2\r
+extern const char * const Sarm[4]; // Sign-extend ARM Extensions for operand sizes 0,1,2\r