public static int sysArg(int argno, byte[] buf, int buflen) { return 0; }
public static int sysArg(int argno, byte[] buf, int buflen) { return VM_SysCallMagic.sysArg(VM_BootRecord.the_boot_record.sysArgIP, argno, buf, buflen); }
  public static int sysArg(int argno, byte[] buf, int buflen) { return 0; }