how to generate DMAC instruction using compiler options in code composer studio in TMS320C28X

hello frens,
i m facing some problem in generating Dmac in assembly code.i hv written c code n i m able to compile it in code composer studio.but tat code is not able to generate dmac instruction.is thr some compiler options required to generate tat particular instruction.i m posting the c code :

#include
#include
void main()
{ /* Calculate sum of product using dual 16-bit multiply */
const signed short X[600] ={0}; /* Data information */
const signed short C[600]={0}; /* Coefficient information (located in low 4M) */
//const signed short int *ptr =(short int*)&X;
//const signed short int *ptr1 =(short int*)&C;
signed short sum = 0;
short int i=0;
// int N`0; /* Data and Coeff must be aligned to even address */
while(i<600)
{
//sum +=((*ptr++) * (*ptr1++));
sum+=(X[i]* C[i])>>5;
i++;
}
printf("\n%d\n",sum);
}

if thr is some compiler option to set to get required to generate DMAC instruction,than plz let me kno tat.
thnx

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