int count;

/*
===========================================
============= ISR FOR WAVES ===============
*/


void __ISR( _TIMER_2_VECTOR, ipl4) T2Interrupt( void)
{

    if(triangle)
        //do nothing
    else if(square)
        OC5RS = (count < 22) ? PR2 : 0;
    else if(exp)
        OC5RS =  pow(2,count);
    else if(sin)
        OC1RS = Table[ count++];

    count++;
    if ( count >= 44)
        count = 0;

    // clear interrupt flag and exit
    mT2ClearIntFlag();
} // T2 Interrupt