inline assembly for Cortex-M3 in CCS 4.2

I got erros in inline assembly code.

I can not know how to use inline assenbly code in CCS 4.2.

I tried to test a code with ARM Complier style, but I got error messages.

And I tried to test a code with GNU Complier style, but I got error messages.

How can I make a program with inline assembly?

The following is a sample code.

1. ARM compiler style

__inline int qmac(int a, short x, short y)
{
 int i;
 const int mask = 0x80000000;
 
 i = x * y;

  asm("adds i, i, i ");
  asm("it VS ");
  asm("EORVS i, mask, i, asr #31 ");
  asm("adds a, a, i ");
  asm("it VS");
  asm("EORVS a, mask, a, asr #31 ");

 return a;
}

2. GNU compiler style

__inline int qmac(int a, short x, short y)
{
int i;
const int mask = 0x80000000;

i = x * y;

asm("adds  %0, %1, %2" : "=r" (i) : "r" (i), "r" (i));
asm("it VS ");
asm("eorvs %0, %1, %2, asr #31": "=r" (i): "r" (mask), "r" (i));
asm("adds  %0, %1, %2": "=r" (a): "r" (a), "r" (i));
asm("it VS");
asm("eorvs %0, %1, %2, asr #31": "=r" (a): "r" (mask), "r" (a));
 
return a;
}