#define KeyPulse portb.f0

void main(){

signed char x;

cmcon=0x07;

trisb=0b00001111;
trisa=0b00000000;

portb=0;
porta=0;

porta.f1=1; delay_ms(2000);
porta.f1=0; delay_ms(20);

loop:

for (x=0; x<2; x++)

while (KeyPulse == 0){}
delay_ms(50);
while (KeyPulse ==1 ){}
delay_ms(50);

if((portb.F1==1)&&(portb.F2==1)&&(portb.F3==1))

{portb.F5=1;delay_ms(1000);portb.F5=0;}


for (x=0; x<3; x++)

while (KeyPulse == 0){}
delay_ms(50);
while (KeyPulse == 1){}
delay_ms(50);

if((portb.F1==1)&&(portb.F2==1)&&(portb.F3==0))

{portb.F5=1;delay_ms(1000);portb.F5=0;}

goto loop;

}