Re-compiling C code

#include <16F676.h>
#device adc=10
#fuses INTRC_IO,NOWDT,PUT,NOPROTECT,BROWNOUT,NOMCLR
#use delay (clock=4000000) // 4MHz clock
#rom 0x3ff={0x3444}
#byte PORTA = 0x05
#byte PORTC = 0x07
#byte TRISA = 0x85
#byte TRISC = 0x87
#define SPORTA PORTA
#define SPORTC PORTC
#define TICKS_BETWEEN_INTERRUPTS 5000 //5000
#define INTERRUPT_OVERHEAD 35
#define TMR1RESET (0xFFFF-(TICKS_BETWEEN_INTERRUPTS-INTERRUPT_OVERHEAD))
const char SegCode[11] = {0x40,0x57,0x22,0x06,0x15,0x0C,0x08,0x56,0x00,0x04,0xFF};
// 0 1 2 3 4 5 6 7 8 9
const char Column[3] = {0x02,0x01,0x04};
static char Segment[3] = {0x7f,0x7f,0x7f};
static unsigned char ColCount=0x00;
void CPU_SETUP(void);
void Display(void);
void HTO7S(unsigned int32 Num);
byte i;
unsigned int32 result;
#INT_TIMER1
void Timer1(void)
{
set_timer1(TMR1RESET);
Display();
}
void main()
{
unsigned char i;
CPU_SETUP();
while(true)
{
result=0;
for (i=0;i<20;i++)
{
set_adc_channel(3);
delay_ms(1);
result=result+read_adc();
}
//result = 0x3fe;
HTO7S(result/20);
delay_ms(200);
}
}
void CPU_SETUP()
{
setup_comparator(NC_NC_NC_NC); // not use comparator module
setup_adc_ports( sAN3 | VSS_VDD);
setup_adc(ADC_CLOCK_DIV_64);
TRISA=0b00011000;
PORTA=0x27;
TRISC=0b00000000;
PORTC=0x37;
setup_timer_1(T1_INTERNAL|T1_DIV_BY_1);
set_timer1(TMR1RESET);
enable_interrupts(GLOBAL);
enable_interrupts(INT_TIMER1);
}
//-------------------------------------
// Display routine
//-------------------------------------
void Display()
{
PORTA = 0b00100111; // off all digits column and Segment G
PORTC = 0b00111111; // off segment a-f
delay_cycles(2);
if (ColCount>=3)
ColCount=0;
SPORTC = Segment[ColCount];
SPORTA = ((Segment[ColCount] & 0b01000000)>>1) | (Column[ColCount]^0x07);
ColCount++;
}
//--------------------------------------
// Convet HEX 2 byte to 7-Segment code
//--------------------------------------
void HTO7S(unsigned int32 Num)
{
unsigned int32 res;
Segment[0]=SegCode[30*Num/10230];
if (Segment[0]==0x40)
Segment[0]=0xFF;
res = 30*Num%10230;
Segment[1]=SegCode[10*res/10230];
res=10*res%10230;
Segment[2]=SegCode[10*res/10230];
}

#include <XC.h>

#pragma config BOREN = OFF, CPD = OFF, FOSC = INTRCIO, MCLRE = OFF, WDTE = OFF, CP = OFF, PWRTE = OFF
#define _XTAL_FREQ 4000000 // 4MHz clock

#define SPORTA PORTA
#define SPORTC PORTC
#define TICKS_BETWEEN_INTERRUPTS 5000 //5000
#define INTERRUPT_OVERHEAD 35
#define TMR1RESET (0xFFFF-(TICKS_BETWEEN_INTERRUPTS-INTERRUPT_OVERHEAD))
const char SegCode[11] = {0x40,0x57,0x22,0x06,0x15,0x0C,0x08,0x56,0x00,0x04,0xFF};
// 0 1 2 3 4 5 6 7 8 9
const char Column[3] = {0x02,0x01,0x04};
static char Segment[3] = {0x7f,0x7f,0x7f};
static unsigned char ColCount=0x00;
void CPU_SETUP(void);
int read_adc(void);
void Display(void);
void HTO7S(unsigned long Num);
unsigned long result;

void interrupt  Timer1(void)
    {
    TMR1L = (unsigned char) (TMR1RESET & 0xFF);
    TMR1H = (unsigned char) (TMR1RESET >> 8);
    Display();
    TMR1IF = 0;
    }

void main()
    {
    unsigned char i;
    CPU_SETUP();
    while(1)
        {
        result=0;
        for (i=0;i<20;i++)
            {
            ADCON0 = 0x8D;
            __delay_ms(1);
            result=result+read_adc();
            }
        //result = 0x3fe;
        HTO7S(result/20);
        __delay_ms(200);
        }
    }

int read_adc()
    {
    unsigned int res;
    GO = 1;
    while(GO);
    res = (int)ADRESH << 8;
    res+= ADRESL;
    return res;   
    }

void CPU_SETUP()
    {
    CMCON = 7;                 // not use comparator module
    ANSEL = 0x8;
    ADCON1 = 0x50;
    TRISA=0b00011000;
    PORTA=0x27;
    TRISC=0b00000000;
    PORTC=0x37;
    T1CON = 1;
    TMR1L = (unsigned char) (TMR1RESET & 0xFF);
    TMR1H = (unsigned char) (TMR1RESET >> 8);
    TMR1IE = 1;
    PEIE = 1;
    GIE = 1;
    }

//-------------------------------------
// Display routine
//-------------------------------------
void Display()
    {
    PORTA = 0b00100111; // off all digits column and Segment G
    PORTC = 0b00111111; // off segment a-f
    NOP();
    NOP();
    if (ColCount>=3)
        ColCount=0;
    SPORTC = Segment[ColCount];
    SPORTA = ((Segment[ColCount] & 0b01000000)>>1) | (Column[ColCount]^0x07);
    ColCount++;
    }

//--------------------------------------
// Convet HEX 2 byte to 7-Segment code
//--------------------------------------
void HTO7S(unsigned long Num)
    {
    unsigned long res;
    Segment[0]=SegCode[30*Num/10230];
    if (Segment[0]==0x40)
        Segment[0]=0xFF;
    res = 30*Num%10230;
    Segment[1]=SegCode[10*res/10230];
    res=10*res%10230;
    Segment[2]=SegCode[10*res/10230];
    }