title ""
;;; *********************************************************************
;;; Filename:	
;;; Purpose:	
;;; Revision:	
;;; Date:	
;;; Author:	
;;; Copyright:	
;;; *********************************************************************
;;; Revision History:
;;;	
;;; *********************************************************************
	

	list 			; Turn on list output.

	;; Include register, bit, and other info specific to 
	;; the specified device.	
	ifdef	__16F873
 	#include <p16f873.inc>
	messg "Assembling for PIC16F873."
	endif
	ifdef	__16F874
 	#include <p16f874.inc>
	messg "Assembling for PIC16F874."
	endif
	ifdef	__16F876
 	#include <p16f876.inc>
	messg "Assembling for PIC16F876."
	endif
	ifdef	__16F877
 	#include <p16f877.inc>
	messg "Assembling for PIC16F877."
	endif
	ifdef	__16F873A
 	#include <p16f873a.inc>
	#define A_Device
	messg "Assembling for PIC16F873A."
	endif
	ifdef	__16F874A
	#define A_Device	
 	#include <p16f874a.inc>
	messg "Assembling for PIC16F874A."
	endif
	ifdef	__16F876A
	#define A_Device	
 	#include <p16f876a.inc>
	messg "Assembling for PIC16F876A."
	endif
	ifdef	__16F877A
	#define A_Device	
 	#include <p16f877a.inc>
	messg "Assembling for PIC16F877A."
	endif



	
	
;;; --------------------------------------------------------------------
;;; Included files (usually library headers).  eg) #include "del_lib.h"
;;; --------------------------------------------------------------------
	

;;; --------------------------------------------------------------------
;;; Assembler Equates Section.  Define assembly-time constants here
;;;				using the EQU assembler directive.
;;;	eg)  DEBUGGING EQU  1
;;; --------------------------------------------------------------------

	
;;; ---------------------------------------------------------------------
;;; Variable Address Assignments.
;;; ---------------------------------------------------------------------
	UDATA			; Start of uninitialized data section.
				; Reserve memory for variables using the
				; "RES" directive here.  Note that the
				; linker will assign addresses.
				; eg)  ADcounter  res  1
				;      (reserves 1 byte for ADcounter).

	UDATA_OVR		; Uninitialized data overlay section.
				; Upon occasion, temporary variables
				; can be over-written by other temporary
				; variables.  These would appear here.
				; BUT!  If you ever intend on time-sliced
				; or pre-emptive multitasking		 
				; don't *ever* use this directive!

	UDATA_SHR		; Uninitialized data shared section.
				; Variables that appear here appear
				; across all banks, meaning that no
				; bank selection will be required.

;;; ---------------------------------------------------------------------
;;; Establish the OPTION register bit values. 
;;; ---------------------------------------------------------------------
;;; The '__CONFIG' directive is used to embed PIC configuration data 
;;; within an assembly file. The labels following the directive 
;;; are located in the .inc file.  See the device data sheet for
;;; additional information on the configuration word.
ifndef A_Device	
	__CONFIG _CP_OFF & _WDT_OFF & _BODEN_ON & _PWRTE_ON & _XT_OSC & _WRT_ENABLE_ON & _LVP_OFF & _CPD_OFF
endif
;;; _CP_OFF:	turn off code protection.  Don't change this unless you
;;;             want a device that can never be programmed again.  This
;;;             is a "bug" in some PIC devices.
;;; _WDT_OFF:	turn off the watchdog timer.
;;; _BODEN_ON:	turn on power brown-out reset.
;;; _PWRTE_ON:	turn on power-up timer.
;;; _XT_OSC:	specify that the device is using an XT oscillator.
;;; _WRT_ENABLE_ON:  enable writing to data EEPROM.
;;; _LVP_OFF:	disable low-voltage in-circuit programming.
;;; _CPD_OFF:	disable data EEPROM write protection.

ifdef A_Device
	messg "A revision device."
	 __CONFIG _CP_OFF & _WDT_OFF & _BODEN_ON & _PWRTE_ON & _XT_OSC & _WRT_OFF & _LVP_OFF & _CPD_OFF
endif

;;; _CP_OFF:	turn off code protection.  Don't change this unless you
;;;             want a device that can never be programmed again.  This
;;;             is a "bug" in some PIC devices.
;;; _WDT_OFF:	turn off the watchdog timer.
;;; _BODEN_ON:	turn on power brown-out reset.
;;; _PWRTE_ON:	turn on power-up timer.
;;; _XT_OSC:	specify that the device is using an XT oscillator.
;;; _WRT_OFF:	disable write-protection of program FLASH.
;;; _LVP_OFF:	disable low-voltage in-circuit programming.
;;; _CPD_OFF:	disable data EEPROM write protection.
		
;;; --------------------------------------------------------------------
;;; Main Program.
;;; --------------------------------------------------------------------
	CODE			; Start of the code section.

	;; Your code starts here.
Main:	


	;; Don't let execution fall down to here, otherwise the
	;; subroutines (or whatever follows) will be executed without
	;; parameters, and chaos reigns when a "return" instruction
	;; executes with no return address on the stack!
		
;;; --------------------------------------------------------------------
;;; Application-specific Subroutines.
;;; --------------------------------------------------------------------
;;; ********************************************************************
;;; Subroutine Name:	
;;; Description:	
;;; Requires:		
;;; Returns:		
;;; Locations Affected:	
;;; ********************************************************************

	
;;; --------------------------------------------------------------------
;;; Code-section Constant Data.
;;; --------------------------------------------------------------------


;;; ---------------------------------------------------------------------
;;; Vectors Section.
;;; ---------------------------------------------------------------------
;;; Establish the reset vector.  Note that the "0x0000" after the CODE
;;; directive ensures that the linker places the code at program memory
;;; location 0x0000.

Reset:	CODE	0x0000
	pagesel Main		; Selects page of program memory with.
	goto	Main		; the actual program, then goes to it.

	END			; End of file.