main.asm

用于飞思卡尔智能小车竞赛的自编程序源代码

;**************************************************************
;* This stationery serves as the framework for a              *
;* user application. For a more comprehensive program that    *
;* demonstrates the more advanced functionality of this       *
;* processor, please see the demonstration applications       *
;* located in the examples subdirectory of the                *
;* Freescale CodeWarrior for the HC12 Program directory       *
;**************************************************************

; export symbols
            XDEF asm_main
            ; we use export 'Entry' as symbol. This allows us to
            ; reference 'Entry' either in the linker .prm file
            ; or from C/C++ later on

; include derivative specific macros
            INCLUDE 'mc9s12dg128.inc'

; variable/data section
MY_EXTENDED_RAM: SECTION
; Insert here your data definition. For demonstration, temp_byte is used.
temp_byte:  DS.B   1

; code section
MyCode:     SECTION
; this assembly routine is called by the C/C++ application
asm_main:
            MOVB   #1,temp_byte   ; just some demonstration code
            NOP                   ; Insert here your own code

            RTC                   ; return to caller