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PIC16F84A temel assembly kod şablonu.

PIC16F84A için hazırlanmış kod şeması aşağıdaki gibidir. Bu şema sayesinde kendi kodlarınızı daha rahat oluşturabilirsiniz. [sourcecode language="c"];**************************************************** ;   This file is a basic code template for assembly code generation   * ;   on the PICmicro PIC16F84A. This file contains the basic code      * ;   building blocks to build upon.                                    * ;                                                                     * ;   If interrupts are not used all code presented between the ORG     * ;   0×004 directive and the label main can be removed. In addition    * ;   the variable assignments for ‘w_temp’ and ‘status_temp’ can       * ;   be removed.                                                       * ;                                                                     * ;   Refer to the MPASM User’s Guide for additional information on     * ;   features of the assembler (Document DS33014).                     * ;                                                                     * ;   Refer to the respective PICmicro data sheet for additional        * ;   information on the instruction set.                               * ;                                                                     * ;   Template file assembled with MPLAB V4.00.00 and MPASM V2.20.12.   * ;                                                                     * ;******************************************************* ;                                                                     * ;    Filename:        xxx.asm                                           * ;    Date:                                                            * ;    File Version:                                                    * ;                                                                     * ;    Author:                                                          * ;    Company:                                                         * ;                                                                     * ;                                                                     * ;**************************************************** ;                                                                     * ;    Files required:                                                  * ;                                                                     * ;                                                                     * ;                                                                     * ;**************************************************** ;                                                                     * ;    Notes:                                                           * ;                                                                     * ;                                                                     * ;                                                                     * ;                                                                     * ;*************************************************** list      p=16F84A            ; list directive to define processor #include <p16F84A.inc>        ; processor specific variable definitions __CONFIG   _CP_OFF & _WDT_ON & _PWRTE_ON & _RC_OSC ; ‘__CONFIG’ directive is used to embed configuration data within .asm file. ; The lables following the directive are located in the respective .inc file. ; See respective data sheet for additional information on configuration word. ;***** VARIABLE DEFINITIONS w_temp        EQU     0x0C        ; variable used for context saving status_temp   EQU     0x0D        ; variable used for context saving ;***************************************************** ORG     0×000             ; processor reset vector goto    main              ; go to beginning of program ORG     0×004             ; interrupt vector location movwf   w_temp            ; save off current W register contents movf    STATUS,w          ; move status register into W register movwf    status_temp       ; save off contents of STATUS register ; isr code can go here or be located as a call subroutine elsewhere movf    status_temp,w     ; retrieve copy of STATUS register movwf    STATUS            ; restore pre-isr STATUS register contents swapf   w_temp,f swapf   w_temp,w          ; restore pre-isr W register contents retfie                    ; return from interrupt main ; remaining code goes here END                     ; directive ‘end of program’[/sourcecode]

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