creating hex file to run 16f877a in proteus

 float phaseA,phaseB,phaseC;
 #define pa RB4_bit
 #define pb RB1_bit
 #define pc RB0_bit
 #define role RB3_bit
 #define phase 311.23
void main() {
  C1INV_bit=0;
  C2INV_bit=0;
  TRISB=0;
  pa=0;
  pb=0;
  pc=0;
  role=0;
  ADC_Init();
  while(1)
  {
    phaseA=(ADC_Read(5)*5.0/1023)*101;
    phaseB=(ADC_Read(1)*5.0/1023)*101;
    phaseC=(ADC_Read(4)*5.0/1023)*101;
    if(phaseA>1.1*phase||phaseB>1.1*phase||phaseC>1.1*phase||phaseA<0.9*phase||phaseB<0.9*phase||phaseC<0.9*phase)
    {
       delay_ms(2);
        if(phaseA>1.1*phase||phaseB>1.1*phase||phaseC>1.1*phase||phaseA<0.9*phase||phaseB<0.9*phase||phaseC<0.9*phase)
        {
           role=1;
           if(phaseA>1.1*phase)
           {
             pa=1;
           }
           else
           {
             pa=0;
           }
           if(phaseB>1.1*phase||phaseB<0.9*phase)
           {
             pb=1;
           }
           else
           {
             pb=0;
           }
           if(phaseC>1.1*phase||phaseC<0.9*phase)
           {
             pc=1;
           }
           else
           {
             pc=0;
           }
        }
        else
        {
          role=0;
        }
    }
  }
}