.text
.globl _start
	
_start:

/*1~100的累加*/
MOV R0, #0
MOV R1, #0
MOV R2, #0
MOV R3, #1

@循环1
bl ONE

/*5的阶乘*/
@循环2
bl TOW

 stop:                                                                                                                	
	b  stop

	
@1~100
ONE:
ADD R0, R0, #1
ADD R1, R1, R0
CMP R0,#100
BCC ONE
mov pc, lr

@5的阶乘
TOW:
ADD R2, R2, #1
@MUL RnRd不能相同
/*
MUL R3, R2, R3
BCC TOW
mov pc, lr
*/
MUL R4, R3, R2
MOV R3, R4
CMP R2,#5
BCC TOW
mov pc, lr

.end