line follower robot

[Transistorman]

i just want to share it , if someone searching for it
and also i fixing the code , changing it to 16F628 not 628A
the circuit and code originally posted on
Simple Black Line Follower
here is the fixed code

list p=16f628
#include<p16f628.inc>
__CONFIG _MCLRE_ON & _CP_OFF & _WDT_OFF & _INTRC_OSC_NOCLKOUT
ERRORLEVEL -302
cblock 0x20
temp
temp_s
endc
org  0x00
goto main
org 0X04
inter:
	movwf temp
	swapf STATUS,w
	clrf STATUS
	movwf temp_s
	btfsc PORTB,0x00
	goto loop1
loop2:
	movlw b'00000101'
	movwf PORTA
	btfsc PORTB,0x05
	goto loop2
	goto loop_x
loop1:
	movlw b'10001000'
	movwf PORTA
	btfsc PORTB,0x00
	goto loop1
loop_x
	bcf INTCON,0x01
	bcf INTCON,0x00
	swapf temp_s,w
	movwf STATUS
	swapf temp,w
	retfie
main:
	bsf INTCON,0x07 
	bsf INTCON,0x04
	bsf INTCON,0x03 
	bcf INTCON, 0x01
	bcf INTCON, 0x00 
	bsf STATUS,RP0 
	movlw b'00100001'
	movwf TRISB 
	movlw b'00000000'
	movwf TRISA 
	bcf STATUS,RP0
	movlw 0x07 
	movwf CMCON
Loop:
	movlw b'00001001'
	movwf PORTA ;set pin 0 of port a HIGH
	goto Loop
END

try to convert the code by yourself using mplab
and good luck