potenio display

/* TFT module connections */
char TFT_DataPort at LATE;
sbit TFT_RST at LATD7_bit;
sbit TFT_BLED at LATD2_bit;
sbit TFT_RS at LATD9_bit;
sbit TFT_CS at LATD10_bit;
sbit TFT_RD at LATD5_bit;
sbit TFT_WR at LATD4_bit;
char TFT_DataPort_Direction at TRISE;
sbit TFT_RST_Direction at TRISD7_bit;
sbit TFT_BLED_Direction at TRISD2_bit;
sbit TFT_RS_Direction at TRISD9_bit;
sbit TFT_CS_Direction at TRISD10_bit;
sbit TFT_RD_Direction at TRISD5_bit;
sbit TFT_WR_Direction at TRISD4_bit;
/* End TFT module connections */

int i, j;
int cnt, speed = 0;
unsigned int tempAdcValue;
void main() {
    /* Setting output frequency to 140MHz  */
    PLLFBD = 70;           // PLL multiplier M=70
    CLKDIV = 0x0000;
         // PLL prescaler N1=2, PLL postscaler N2=2

    ANSELA = 0x0000;
    TRISA = 0x00F0;
    LATA = 0x0000;

    ANSELB = 0x0001;    /* Conf. RB0 as analog - DSPIC specific. */
    TRISB0_bit = 1;     /* Set PORTB.B0 as input (AN0) */
    ADC1_Init();        /* Default config of ADC module */

    /* Init TFT */
    TFT_Set_Default_Mode();
    TFT_Init_ILI9341_8bit_Custom(320, 240);
    Delay_10ms();

    /* Fill TFT screen with a color */
    TFT_Fill_Screen(CL_White);
    TFT_Set_Pen(CL_BLACK,5);

       /*TFT_V_Line(100, 150, 10);
        TFT_V_Line(100, 150, 50);
        TFT_H_Line(10+cnt,50,150);
        TFT_H_Line(10+cnt,50,100);*/
    while(1)
    {
    tempAdcValue = ADC1_Get_Sample(0);

    if ( (tempAdcValue > 0) && (tempAdcValue <= 255))
    {
        speed = 1;
    }
    if ( (tempAdcValue > 255) && (tempAdcValue <= 512))
    {
        speed = 5;
    }

        if ( tempAdcValue > 512)
    {
        speed = 10;
    }


  //  Vdelay_ms(tempAdcValue);

       if((PORTA & 0x0020) == 0){
        cnt+=speed;
       TFT_Fill_Screen(CL_White);
        TFT_V_Line(100, 150, 10+cnt);
       /*TFT_V_Line(100, 150, 50+cnt);
        TFT_H_Line(10+cnt,50+cnt,150);
        TFT_H_Line(10+cnt,50+cnt,100);*/
        Delay_100ms();
       }

       if((PORTA & 0x0010) == 0){
        cnt-=speed;
       TFT_Fill_Screen(CL_White);
        TFT_V_Line(100, 150, 10+cnt);
       /* TFT_V_Line(100, 150, 50+cnt);
        TFT_H_Line(10+cnt,50+cnt,150);
        TFT_H_Line(10+cnt,50+cnt,100);*/
        Delay_100ms();
       }
    }
    }