boot.s

来自「ARM嵌入式系统关于定时器基于c语言的实验代码」· S 代码 · 共 92 行

	IMPORT	postDelay

	IMPORT	post_initGpio
	IMPORT	post_initMem
	IMPORT	post_initVariant
	IMPORT	dummyOs
         IMPORT   osStack

	AREA boot ,CODE ,READONLY

	ENTRY

	b post
	nop
	nop
	nop

;0x10
	nop
	nop
	nop
	nop

;0x20
	nop
	nop
	nop
	nop

;0x30
	nop
	nop
	nop
	nop

;0x40
	nop
	nop
	nop
	nop

;0x50
	nop
	nop
	nop
	nop

;0x60
	nop
	nop
	nop
	nop

;0x70
	nop
	nop
	nop
	nop

;/////////
;this post routine body
;////////

post
	mov r14,pc
	ldr pc,=post_initGpio
        
	mov r14,pc
	ldr pc,=post_initMem

	mov r14,pc
	ldr pc,=post_initVariant


;//////////////////

	ldr r0,=postDelay

postLoop	
	sub r0,r0,#0x1
	cmp r0,#0x0
	bne postLoop

         ldr r13,=osStack

	ldr pc,=dummyOs
	END