function.s

嵌入式系统arm的c语言程序实例

	AREA	FUNCTION,CODE,READONLY	  ;声明代码段Example1 
	CODE32
	EXPORT ARM_TEST
ARM_TEST 	;函数1
	ADD R0,R0,R1
	MOV PC,LR
	EXPORT MEM_CHECK
MEM_CHECK	;函数2
	LDR R1,=data1
	LDR R2,=data2
	MOV r0,#32
	LDR R3,=data3
LOOP
	STRB r0,[r3,r0]
	SUBS R0,R0,#1
	BNE  LOOP
	MOV PC,LR
data1 dcd 0x01,0x02,0x03,0x04,0x05,0x06,0x07,0x08
data2 dcb 0x01,0x02,0x03,0x04,0x05,0x06,0x07,0x08
data3 space 32
	END