Pequeña duda con codewarrior

[cesaryn]

Es el primer programa que hago en codewarrior 6.3
Mi duda es
¿que se puede borrar del programa que te sale al principio por default si lo que quiero es hacer esto
Lda #$55
add #$AA
ora #$12
and #$D7


segun yo es en donde dice mainloop

Este es que me sale al principio


;*******************************************************************
;* 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 HC08" program *
;* directory. *
;*******************************************************************

; Include derivative-specific definitions
INCLUDE 'derivative.inc'
;
; export symbols
;
XDEF _Startup
ABSENTRY _Startup

;
; variable/data section
;
ORG RAMStart ; Insert your data definition here
ExampleVar: DS.B 1

;
; code section
;
ORG ROMStart

_Startup:
LDHX #RAMEnd+1 ; initialize the stack pointer
TXS
CLI ; enable interrupts

mainLoop:
; Insert your code here
NOP

feed_watchdog
BRA mainLoop

;**************************************************************
;* spurious - Spurious Interrupt Service Routine. *
;* (unwanted interrupt) *
;**************************************************************
spurious: ; placed here so that security value
NOP ; does not change all the time.
RTI

;**************************************************************
;* Interrupt Vectors *
;**************************************************************
ORG $FFFA

DC.W spurious ;
DC.W spurious ; SWI
DC.W _Startup ; Reset