volatile unsigned short *T0 = pTIMER0_CONFIG;
int main( void )
{
    /* Begin adding your custom code here */
        *T0 = 2;
        T0 += 4;
        *T0 = 3;
        T0 += 2;
        *T0 = 4;

    return 0;
}

/* TIMER0-7 Registers         (0xFFC00600 - 0xFFC006FF) */
#define pTIMER0_CONFIG         ((volatile unsigned short *)TIMER0_CONFIG)
#define pTIMER0_PERIOD         ((volatile unsigned long  *)TIMER0_PERIOD)
#define pTIMER0_WIDTH         ((volatile unsigned long  *)TIMER0_WIDTH)

volatile unsigned short *T0 = pTIMER0_CONFIG;

int main( void )
{
    /* Begin adding your custom code here */
long *T1 = (long*)T0 + 2;
long *T2 = (long*)T0 + 3;

         *T0 = 2;
        *T1 = 5;
        *T2 = 6;
    return 0;
}

    *pTIMER0_CONFIG = x;
    *pTIMER0_PERIOD = y;
    *pTIMER0_WIDTH = z;

//это просто для красоты. в макросы нужно передавать просто букву A, B, C, D...
#define PORT_A A
#define PORT_B B
#define PORT_C C
#define PORT_D D


//we need it ))
#define PARAMCAT(a, b) a##b

//set pin direction as output
#define GPIO_SET_DIR_OUT(port, pin)    \
        PARAMCAT(DDR, port) |= (1 << (pin))  

//for output pins: set pin to logic high
//for input pins: turn on internal pull-up resistor
#define GPIO_SET_HIGH(port, pin)    \
        PARAMCAT(PORT, port) |= (1 << (pin))