Lpc2000

I have written very simple code just to evaluate the LPC2129
speed for the Keil MCB2100 board:

void Meander(void)
{
  unsigned int n;

  n = 0x00010000;	
  while (1) {
    IOSET1 = n;
    IOCLR1 = n;
  }
}

It works well and I can scope the meander pulses.  But when I add
the __ram attribute:

void Meander(void) __ram

The program does not work.  Should I make any other changes in the
program or compiler settings to force the code work from RAM?

Thanks,
Varuzhan