#include <p18f4620.inc>

; ---  COUNT_RB0.ASM ----
; This program counts how many times
; RB0 is pressed and displays the result
; on PORTC

; Program

    org 0x800

    clrf  TRISA
    movlw 0xFF
    movwf TRISB
    clrf  TRISC
    clrf  TRISD
    clrf  TRISE
    movlw 0x0F
    movwf ADCON1
    clrf  PORTC


Loop1:
   btfsc PORTB,0
   goto  Loop1
Loop2:
   btfss PORTB,0
   goto  Loop2
   incf  PORTC,F
   goto  Loop1
   end