public static int sysRename(byte[] fromName, byte[] toName) { return 0; }
public static int sysRename(byte[] fromName, byte[] toName) { return VM_SysCallMagic.sysRename(VM_BootRecord.the_boot_record.sysRenameIP, fromName, toName); }
  public static int sysRename(byte[] fromName, byte[] toName) { return 0; }