DDS

#include <c6x.h>;
int main(void)
{

    int i;
    int j;
    int k=33;
    int x=0;
    int phase[256];
    short phase1p[256];
    unsigned short sin1p[]={
            0,1559,3114,4663,6201,7725,9231,10717,12178,13611,15014,16383,17715,
            19006,20255,21457,22611,23714,24763,25756,26691,27565,
            28377,29124,29805,30419,30964,31439,31843,32174,32433,32618,32729
    };
    short out[256];
    for (i=0; i<256; i++)
    {
        x=k*i;/*Edit phase for all period*/
        phase[i] = x;
        //phase[i]=_extu(x,19,19);

        if (phase[i]<=2048)
        {
            phase1p[i]=_extu(phase[i],0,4);
            j=phase1p[i];
            out[i]=sin1p[j];
        }

        if  (phase[i]>2048)
        {
            phase1p[i]=_extu(4096-phase[i],0,4);
            j=phase1p[i];
            out[i]=sin1p[j];
        }

        if  (phase[i]>4096)
        {
            phase1p[i]=_extu(phase[i]-4096,0,4);
            j=phase1p[i];
            out[i]=-sin1p[j];
        }

        if  (phase[i]>6144)
        {
            phase1p[i]=_extu(8192-phase[i],0,4);
            j=phase1p[i];
            out[i]=-sin1p[j];
        }
    }
    return 0;
}