PIC 7-SEG DISP

#include <xc.h>
#include "config.h"

static const unsigned char nums[] = {
    0b00111111,
    0b00110000,
    0b01101101,
    0b01111001,
    0b01110010,
    0b01011011,
    0b01011111,
    0b00110001,
    0b01111111,
    0b01110011,
    0b00000000,
};

void main()
{
         ADCON1 |= 0x0F;                         // Configure all ports with analog function as digital
        CMCON  |= 7;                            // Disable comparators

    TRISA=0xFF;
    TRISB=0;
    int old = PORTA;
    int i = 0;

    for(;;){
        int n = PORTA;

        if ((n == 1) && !(old == 1)) {
            i++;
            if (i > 10) i = 0;
            PORTB=nums[i];
        }
        old = n;
    }
}