crtsi.s

来自「使用单片机mc68hc11f1对内部EEprom擦除的程序」· S 代码 · 共 35 行

;	C STARTUP FOR MC68HC11
;	WITH AUTOMATIC DATA INITIALISATION
;	Copyright (c) 1995 by COSMIC Software
;
	xdef	_exit, __start
	xref	_main, __memory, __stack
;
	switch	.bss
__sbss:

	switch	.text
__start:

	clra
	ldx	#__sbss		; start of bss
	
	bra	loop		; start loop
zbcl:
	staa	0,x		; clear byte
	inx			; next byte
loop:
	cpx	#__memory	; up to the end
	bne	zbcl		; and loop
	ldab #$21
	stab $103D		;INIT  103D	
	ldab #$00
	stab $1035		;bprot  eeprom1035	
	lds	#__stack	; initialize stack pointer
	
	jsr	_main		; execute main
_exit:
	bra	_exit		; and stay here
;
	end