[SOLVED] how to merge two adc codes to one code for same mcu

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//Function Prototypes
 void floattostring(double FP_NUM);
 double FP_NUM, volt;
 char string[6];
 //Sub Function
 void floattostring(double FP_NUM) {
 double fpnumber;
 long int befdec, aftdec;
 fpnumber = FP_NUM;
 befdec = fpnumber; // Fractional part is truncated
 // 12.163456 becomes 12
 aftdec = fpnumber * 100; // 12.163456 becomes 1216
 aftdec = aftdec - (befdec * 100); // 1216 - 1200 = 16
 }
 void main() {
 TRISA = 0b00000001;
 PORTA = 0b00000000;
 TRISC = 0b00000111;
 PORTC = 0b00000000;
 TRISD = 0b00000000;
 PORTD = 0b00000000;
 ADCON1 = 0b10001110;
 CMCON = 0b00000111;
 while(1) {
 volt = ADC_Read(0);
 volt = volt * 0.0305498981670061;
 volt = volt * 0.9612303748798462;
 floattostring(volt);
 if(volt > 27.0) { // Change value here
 PORTD.F0 = 1;
 }
 else if(volt < 27.0) { // Change value here
 PORTD.F0 = 0;
 }
 if(volt > 9.25) { // Change value here
 PORTD.F4 = 0;
 }
 else if(volt < 9.25) { // Change value here
 PORTD.F4 = 1;
 }
 }
 }

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unsigned int adc_rd0,tlong;
 unsigned short mask(int num)
 {
 switch (num)
 {
 case 0 : return 0xC0;
 case 1 : return 0xF9;
 case 2 : return 0xA4;
 case 3 : return 0xB0;
 case 4 : return 0x99;
 case 5 : return 0x92;
 case 6 : return 0x82;
 case 7 : return 0xD8;
 case 8 : return 0x80;
 case 9 : return 0x90;
 case 10: return 0x40;
 case 11: return 0x79;
 case 12: return 0x24;
 case 13: return 0x30;
 case 14: return 0x19;
 case 15: return 0x12;
 case 16: return 0x02;
 case 17: return 0x78;
 case 18: return 0x00;
 case 19: return 0x10;
 }
 }
 unsigned short shifter, portb_index;
 unsigned int digit, number;
 unsigned short portb_array[4];
 void interrupt()
 {
 PORTC = 0;
 PORTB = portb_array[portb_index];
 PORTC = shifter;
 shifter <<= 1;
 if(shifter > 8u)
 shifter = 1;
 portb_index ++ ;
 if (portb_index > 3u)
 portb_index = 0;
 TMR0 = 0;
 INTCON = 0x20;
 }
 void display()
 {
 digit = number % 10u;
 portb_array[0] = mask(digit);
 digit = (number / 10u) % 10u;
 portb_array[1] = mask(digit);
 digit = (number / 100u) % 10u+10;
 portb_array[2] = mask(digit);
 digit = number / 1000u;
 portb_array[3] = mask(digit);
 }
 void main()
 {
 // port initialization...
 TRISB = 0x00; // Set PORTB direction to be output
 PORTB = 0xff; // Turn OFF LEDs on PORTB
 TRISC= 0x00; // Set PORTB direction to be output
 PORTC = 0x00;
 TRISA = 0xFF; // all input
 digit = 0;
 portb_index = 0;
 shifter = 1;
 number = 0; //initial value;
 // tiemr0 settings...
 OPTION_REG = 0x80; // Set timer TMR0;
 TMR0 = 0;
 INTCON = 0xA0; // Disable interrupt PEIE,INTE,RBIE,T0IE
 while(1)
 {
 // Read Battery voltage
 ADCON0 = 0b00000001;
 adc_rd0 = ADC_Read(0); // A/D conversion. Pin RA2 is an input.
 tlong = (float)adc_rd0 *1.96078431372549; // Convert the result in millivolts
 number = tlong;
 display();
 }//Endless loop;
 }//End