RF12 module need to convert some C to Basic

[davewanna]

As I said I don't know any C.. But looking at the code more, I have just noticed that Write0 and Write1 seem to also be subroutines...

void Write0( void )
{
  SDI=0;
  SCK=0;
  NOP();
  NOP();
  NOP();
  NOP();
  NOP();
  NOP();
  NOP();
  NOP();
  NOP();
  NOP();
  NOP();
  NOP();
  NOP();
  NOP();
  NOP();
  NOP();
  SCK=1;
  NOP();
}

My revised question is:
What is NOP() ????