1.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:	1.ASM
	Object File:	1.HEX
	List File:	1.LST



 Line  I  Addr  Code            Source

    1:		N      0000		ORG    0000H
    2:	  0000	02 00 30		JMP   BEGIN
    3:		N      0030		ORG    0030H
    4:	  0030	53 89 F0	BEGIN:  ANL  TMOD, #0F0H
    5:	  0033	43 89 00		ORL  TMOD, #00H	   ;由软件控制的MODE0模式下的定时器0
    6:	  0036	C3			CLR  C             ;C=0
    7:	  0037	75 30 08		MOV  30H, #8      ;设置右移次数
    8:	  003A	74 FF			MOV  A, #0FFH     ;A=FFH，设定A中的初始值
    9:	  003C	13		NEXT1:  RRC   A            ;循环右移一位
   10:	  003D	F5 90			MOV  P1, A        ;输出至P1
   11:	  003F	75 20 FA		MOV  20H, #250    ;延时程序执行250次
   12:	  0042	12 00 59		CALL  DELAY        ;调用延时程序
   13:	  0045	D5 30 F4		DJNZ  30H, NEXT1
   14:	  0048	75 31 07		MOV  31H, #7       ;设置右移次数
   15:	  004B	F5 90		NEXT2:  MOV  P1, A         ;输出至P1
   16:	  004D	33			RLC   A             ;循环左移一位
   17:	  004E	75 20 FA		MOV  20H, #250     ;延时程序执行250次
   18:	  0051	12 00 59		CALL  DELAY         ;调用延时程序
   19:	  0054	D5 31 F4		DJNZ   31H, NEXT2  ;左移7次
   20:	  0057	80 D7			JMP   BEGIN
   21:	  0059	D2 8C		DELAY:  SETB TR0            ;启动计时器0，开始计时
   22:	  005B	75 8C A0	MORE:   MOV TH0 , #0A0H      ; 初始计时值高8位设定
   23:	  005E	75 8A 00		MOV TL0 , #00       ;初始计时值低5位设定
   24:	  0061	10 8D 02	NEXT3:  JBC  TF0 , NEXT4     ;TF0是否为1，是则跳转到NEXT3,并将TF0清0；否则执行下一条指令
   25:	  0064	80 FB			JMP  NEXT3          ;等待即使时间结束
   26:	  0066	D5 20 F2	NEXT4:  DJNZ  20H ,  MORE   ;延时时间是否结束，
   27:	  0069	C2 8C			CLR   TR0           ;停止计时器0计时
   28:	  006B	22		        RET
   29:					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
BEGIN				  CODE	    0030	   4
CY				  BIT	      D7
DELAY				  CODE	    0059	  21
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
MORE				  CODE	    005B	  22
NEXT1				  CODE	    003C	   9
NEXT2				  CODE	    004B	  15
NEXT3				  CODE	    0061	  24
NEXT4				  CODE	    0066	  26
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

ASEM-51 V1.2                                         Copyright (c) 1996 by W.W. Heinz                                         PAGE 3



SYMBOL				  TYPE     VALUE	LINE
------------------------------------------------------------
RXD				  BIT	      B0
SBUF				  DATA	      99
SCON				  DATA	      98
SINT				  CODE	    0023
SM0				  BIT	      9F
SM1				  BIT	      9E
SM2				  BIT	      9D
SP				  DATA	      81
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
TIMER0				  CODE	    000B
TIMER1				  CODE	    001B
TL0				  DATA	      8A
TL1				  DATA	      8B
TMOD				  DATA	      89
TR0				  BIT	      8C
TR1				  BIT	      8E
TXD				  BIT	      B1
WR				  BIT	      B6