ARM实验汇编代码..pdfVIP

AREAExample1,CODE,READONLYENTRY

CODE32

STARTMOVR0,#15

MOVR1,#8

ADDSR0,R0,R1

BSTART

END

Test2.s

XEQU11

YEQU8

BIT23EQU(123

AREAExample3,CODE,READONLYENTRY

CODE32

START

Y

MOVR0,#X

MORR1,#Y

ADDR3,R0,R1

MOVR8,R3

精选

MVNR0,#0XA0000007

SUBR5,R0,R8,LSL#3

MOVR0,#Y

ADDR0,R0,R0,LSL#2

MOVR0,R0,LSR#1

MOVR1,#X

MOVR1,R1,LSL#1

CMPR0,R1

LDRHIR2,=0XFFFF0000

ANDHIR5,R5,R2

ORRLSR5,R5,#0X000000FF

TSTR5,#BIT32

BICNER5,R5,#0

BSTART

END

//*******Test3.s********************

XEQU11

YEQU8

BIT23EQU(123

精选

AREAExample3,CODE,READONLYENTRY

CODE32

START

MOVR0,#X

MOVR1,#Y

ADDR3,R0,R1

MOVR8,R3

MVNR0,#0XA0000007

SUBR5,R0,R8,LSL#3

MOVR0,#Y

ADDR0,R0,R0,LSL#2

MOVR0,R0,LSR#1

MOVR1,#X

MOVR1,R1,LSL#1

CMPR0,R1

LDRHIR2,=0XFFFF0000

ANDHIR5,R5,R2

ORRLSR5,R5,#0X000000FF

TSTR5,#BIT23

精选

BICNER5,R5,#0

BSTART

END

//*************Test4.s***************;********************************

******;Name:test4.s

;Function:CaculateX^n

;Entranceparametre:

;Outparametre:R0Result

;Sourceoccupation:R0,R1

;Explanation:

;**************************************

XEQU9

nEQU8

AREAExample4,CODE,READONLY

ENTRY

CODE32

STARTLDRSP,=0X40D03F0D

LDRR0,=X

LDRR1,=n

精选

BLPOW

HALTBHALT

;**************************************

;Name:POW

;Function:zhengshuchengfang

;Entranceparametre:

;Outparametre:

;Sourceoccupation:R0,R1

;Explanation:Thiscodedoesntcarethenumber

overflow;**************************************

POW

STMFDSP!,{R1-R12,LR}