Counter Project recoded in C

So i've decided to rewrite the code in C language using the MikroC compiler for the Counter project.

I have chosen MikroC compiler for its easy of use and good documentation, unfortunatelly the IDE editor simple sucks big time, so it really is good for me to tolerate it.

I also got recently some professionally finished PCB's.

This is a part of the Counter project.
You can see a video of it here.

Now let's go for the code :

// Connect buttons and displays on PORTB pins
#define DECIMALS         PORTB.RB7
#define UNITS            PORTB.RB6
#define BUP              PORTB.RB4
#define BDOWN            PORTB.RB3

typedef unsigned char uint8_t;

char lower = 0;     // minimum the counter can go
char upper = 99;    // maximum the counter can go
char count = 0;     // current count

char display_converter (char number);   // Converts decimal to 7 segments

void interrupt() {
     PIR1.TMR2IF = 0;          // clear Timer2 Interrupt flag, this will allow
                               // for this same interrupt to occur again

     if (DECIMALS == 1) {                     // If decimals display ON
     PORTA = display_converter(count % 10);   // send units digit to PORTA
     DECIMALS = 0;                            // turn OFF decimals digit
     UNITS = 1;                               // turn ON units digit
     }
     else {                                   // else meaning units display is ON
     PORTA = display_converter(count / 10);   // send decimals digit to PORTA
     DECIMALS = 1;                            // turn ON decimals digit
     UNITS = 0;                               // turn OFF units digit
     }
}

void main() {
     TRISA = 0;                     // set directions to be output
     TRISB = 0b00011000;            // bit 4 and 3 PORTB are inputs
     ANSEL = 0;                     // set all pins to digital I/O
     OSCCON = 0x70;                 // Select 8 MHZ internal Oscillator
     PIE1.TMR2IE = 1;               // enable Timer2 interrupt
     T2CON = 0x04;                  //
     INTCON.PEIE = 1;               //
     INTCON.GIE = 1;                // Enable global interrupts
     OPTION_REG = 0b00001111;       // Assign 1:128 prescaler to WDT

     count = EEPROM_Read(0x10); // read from memory last
                                // value before power-off

     while (1) {
     asm CLRWDT;
       if (!BUP) {                      // if Button UP activated
         Delay_ms(80);                  // small delay to slow down incrementing
         count++;                       // increment count
         if (count > upper) {           // if its over the maximum
           count = lower;               // set counter to minimum
         }
         EEPROM_Write(0x10, count);        // save count into EEPROM location 0x10
       }
       
       if (!BDOWN) {                    // if Button DOWN activated
         Delay_ms(80);                  // small delay to slow down decrementing
         if (count == 0) {              // if count is zero
            count = upper;              // set count to the maximum
         } else {                       // otherwise
           count--;                     // decrement count
         }
         EEPROM_Write(0x10, count);        // save count into EEPROM location 0x10
       }
     }
}

uint8_t display_converter (char number) {


     char digit[10] = {
     0x60,    // 0
     0xEB,    // 1
     0xA4,    // 2
     0xA1,    // 3
     0x2B,    // 4
     0x31,    // 5
     0x30,    // 6
     0xE3,    // 7
     0x20,    // 8
     0x23     // 9
     };
     return digit[number];
}