Please read the instructions on how to post legible source code!
http://www.8052.com/faqs.phtml?FAQ=120199

There's even a button to insert the tags for you!

And remember to check it in the 'Preview' - it should look something like this:

while (x) 
{ 
  t  = (r >>24) & 0xff; 
  r  = r (r << 8) | *++; 
  r ^= table[t]; 
} 

Does this code actually compile?

Are you sure you haven't mis-typed and/or mis-quoted it?