Lpc2000

hello all,
This is abt Flash Programming,,is onchip flash programming BY USING 
IAP, possible in ARM mode.?
i found a flash programming example by using IAP in THUMB Mode in the 
group 
here it is ...
**********************************************************************
static void callIAP(void) __attribute((naked));
static void callIAP(void)
{
  ///// fast way to get the address of flashParams[] directly into r0
  register void *pFP asm("r0") = flashParams;

  asm volatile(" mov r1, r0\n"       // copy &flashParams[] into r1
               " bx  %[iapLocation]" // 'bx' because IAP is Thumb mode
               :
               : "r" (pFP), [iapLocation] "r" (IAP_LOCATION)
               : "r1" );
}

/*********************************************************************

But as IAP is alaways called by a word pointer in register R0 
(pointing to RAM),so is this not possble in ARM MOde Right..?
If so then,how can i make changes so that this piece of code works 
for ARM mode..?

Am I right or missing something..?Pls suggest
regards
dp