pthreadID             = VM_Magic.getMemoryWord(argAddress.add(8));
pthreadID             = VM_Magic.getMemoryInt(argAddress.add(8));
  public VM_JNIStartUp (VM_Address argAddress1) {    argAddress = argAddress1;    // obtain the JNIEnv pointer and the pthread ID    // based on the struct parms defined in libjni.C    externalJNIEnvAddress = VM_Magic.getMemoryAddress(argAddress.add(4));    pthreadID             = VM_Magic.getMemoryWord(argAddress.add(8));    if (trace)       System.out.println("VM_JNIStartUp: " + VM.intAsHexString(argAddress.toInt()) +			 ", JNIEnvAddr=" + VM.intAsHexString(externalJNIEnvAddress.toInt()) +			 ", pid=" + pthreadID);      }