9.lst

我的大学单片机课程案例和ppt


ASEM-51 V1.2                                         Copyright (c) 1996 by W.W. Heinz                                         PAGE 1





       MCS-51 Family Cross Assembler   A S E M - 5 1   V 1.2
       =====================================================



	Source File:	9.ASM
	Object File:	9.HEX
	List File:	9.LST



 Line  I  Addr  Code            Source

    1:		N      0000				ORG 0000H
    2:	  0000	01 30					AJMP START
    3:		N      000B				ORG 000BH                 ;定时器0的中断向量地址
    4:	  000B	01 46					AJMP TIME0                ;跳转到定时器0中断处理程序处
    5:		N      0030				ORG 30H
    6:	  0030	75 A0 FE	START:	MOV P2,#0FEH              ;点亮P2.0灯
    7:	  0033	75 89 01				MOV TMOD,#00000001B     ;定时0工作于方式1(16位)
    8:	  0036	75 8C B1				MOV TH0,#0B1H
    9:	  0039	75 8A E0				MOV TL0,#0E0H            ;设定定时时间20ms
   10:	  003C	D2 8C					SETB TR0                   ;定时器0开关打开
   11:	  003E	D2 A9					SETB ET0                   ;打开开定时/计数器0允许
   12:	  0040	D2 AF					SETB EA                   ;打开总中断允许
   13:	  0042	7E 32					MOV	R6,#50	;计溢出次数50×20ms=1S
   14:	  0044	01 44		LOOP:       	AJMP 	LOOP                 ;无限等待
   15:	  0046	C0 D0		TIME0:	PUSH  PSW
   16:	  0048	75 8C B1				MOV TH0,#0B1H
   17:	  004B	75 8A E0				MOV TL0,#0E0H             ;重置定时时间20ms
   18:	  004E	DE 07					DJNZ	R6,TRUESC;不到1S退出中断程序
   19:	  0050	7E 32					MOV	R6,#50	;重新赋溢出计数值
   20:	  0052	E5 A0					MOV	A,P2	;P2口左移
   21:	  0054	23					RL	A
   22:	  0055	F5 A0					MOV	P2,A
   23:	  0057	D0 D0		TRUESC:	POP  PSW
   24:	  0059	32					RETI
   25:							END





                     register banks used:  ---

                     no errors




ASEM-51 V1.2                                         Copyright (c) 1996 by W.W. Heinz                                         PAGE 2





	       L I S T   O F   S Y M B O L S
	       =============================


SYMBOL				  TYPE     VALUE	LINE
------------------------------------------------------------
AC				  BIT	      D6
ACC				  DATA	      E0
B				  DATA	      F0
CY				  BIT	      D7
DPH				  DATA	      83
DPL				  DATA	      82
EA				  BIT	      AF
ES				  BIT	      AC
ET0				  BIT	      A9
ET1				  BIT	      AB
EX0				  BIT	      A8
EX1				  BIT	      AA
EXTI0				  CODE	    0003
EXTI1				  CODE	    0013
F0				  BIT	      D5
IE				  DATA	      A8
IE0				  BIT	      89
IE1				  BIT	      8B
INT0				  BIT	      B2
INT1				  BIT	      B3
IP				  DATA	      B8
IT0				  BIT	      88
IT1				  BIT	      8A
LOOP				  CODE	    0044	  14
OV				  BIT	      D2
P				  BIT	      D0
P0				  DATA	      80
P1				  DATA	      90
P2				  DATA	      A0
P3				  DATA	      B0
PCON				  DATA	      87
PS				  BIT	      BC
PSW				  DATA	      D0
PT0				  BIT	      B9
PT1				  BIT	      BB
PX0				  BIT	      B8
PX1				  BIT	      BA
RB8				  BIT	      9A
RD				  BIT	      B7
REN				  BIT	      9C
RESET				  CODE	    0000
RI				  BIT	      98
RS0				  BIT	      D3
RS1				  BIT	      D4
RXD				  BIT	      B0
SBUF				  DATA	      99
SCON				  DATA	      98
SINT				  CODE	    0023
SM0				  BIT	      9F
SM1				  BIT	      9E

ASEM-51 V1.2                                         Copyright (c) 1996 by W.W. Heinz                                         PAGE 3



SYMBOL				  TYPE     VALUE	LINE
------------------------------------------------------------
SM2				  BIT	      9D
SP				  DATA	      81
START				  CODE	    0030	   6
T0				  BIT	      B4
T1				  BIT	      B5
TB8				  BIT	      9B
TCON				  DATA	      88
TF0				  BIT	      8D
TF1				  BIT	      8F
TH0				  DATA	      8C
TH1				  DATA	      8D
TI				  BIT	      99
TIME0				  CODE	    0046	  15
TIMER0				  CODE	    000B
TIMER1				  CODE	    001B
TL0				  DATA	      8A
TL1				  DATA	      8B
TMOD				  DATA	      89
TR0				  BIT	      8C
TR1				  BIT	      8E
TRUESC				  CODE	    0057	  23
TXD				  BIT	      B1
WR				  BIT	      B6