#define phase_1          portb.f6
#define phase_2          portb.f5
#define phase_3          portb.f4

#define pulse1_dir      trisb.f6
#define pulse2_dir      trisb.f5
#define pulse3_dir      trisb.f4

#define sw1             porta.f1
#define sw2             porta.f2

#define sw1_dir         trisa.f1
#define sw2_dir         trisa.f2

#define led             porta.f7
#define led_dir         trisa.f7

#define on              1
#define off            0
#define is             ==


char x=0;
char i=0;

void main()
{
cmcon=7;
pulse1_dir=0;
pulse2_dir=0;
pulse3_dir=0;

sw1_dir=1;
sw2_dir=1;
led_dir=0;

led=0;
phase_1=0;
phase_2=0;
phase_3=0;

for(i=0;i<12;i++){led=~led; delay_ms(100);}
led=1;
while(1)
 {

        phase_3 = 0;
        phase_2 = 0;
        phase_1 = 1;

         vdelay_ms(1+x);

        phase_3 = 0;
        phase_2 = 1;
        phase_1 = 1;
  
     vdelay_ms(1+x);


        phase_3 = 0;
        phase_2 = 1;
        phase_1 = 0;


     vdelay_ms(1+x);
   
   
        phase_3 = 1;
        phase_2 = 1;
        phase_1 = 0;


     vdelay_ms(1+x);
     
        phase_3 = 1;
        phase_2 = 0;
        phase_1 = 0;
     
     vdelay_ms(1+x);
     
        phase_3 = 1;
        phase_2 = 0;
        phase_1 = 1;
    
    vdelay_ms(1+x);
    
    
   if(sw1 is 1){delay_ms(250); x=x+1;}
   if(sw2 is 1){delay_ms(250); x=x-1;}
 }
}