ex4-2.lst

《单片机原理实用教程——基于Proteus虚拟仿真》一书的配套光盘


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:	EX4-2.ASM
	Object File:	EX4-2.HEX
	List File:	EX4-2.LST



 Line  I  Addr  Code            Source

    1:
    2:				; 外中断0为闪"8"字8次
    3:				;外中断1为高低4位交替闪亮8次
    4:		N      0000		ORG 0000H
    5:	  0000	02 00 40		LJMP MAIN
    6:		N      0003		ORG 0003H 		;INT0 中断入口地址
    7:	  0003	02 00 61	    	LJMP INT0S
    8:		N      0013	   	 ORG 0013H 		;INT1 中断入口地址
    9:	  0013	02 00 7B	    	LJMP INT1S
   10:		N      0040		ORG 0040H
   11:	  0040	75 A8 85	MAIN:	MOV IE,#85H     	;主程序，开中断
   12:	  0043	75 88 05	    	MOV TCON,#05H        	;设置外部中断为负边沿触发方式
   13:	  0046	74 FE		    	MOV A,#0FEH
   14:	  0048	75 B0 FF	    	MOV P3,#0FFH
   15:	  004B	D2 BA		    	SETB PX1		;设置INT1为高优先级
   16:	  004D	74 01		ST0:	MOV A ,#1		;主程序循环显示"1"~"8"
   17:	  004F	C0 E0		ST1:	PUSH ACC
   18:	  0051	12 00 A0	    	LCALL SEG7
   19:	  0054	F5 80		    	MOV P0,A
   20:	  0056	12 00 95	    	LCALL DELAY
   21:	  0059	D0 E0		    	POP ACC
   22:	  005B	04		    	INC A
   23:	  005C	B4 09 F0	    	CJNE A,#9,ST1
   24:	  005F	80 EC		    	SJMP ST0
   25:
   26:	  0061	C0 E0		INT0S:	PUSH ACC		;INT0中断服务程序显示"1"~"8"
   27:	  0063	74 00		    	MOV A,#0
   28:	  0065	04		LOOP:	INC A
   29:	  0066	C0 E0		    	PUSH ACC
   30:	  0068	12 00 A0	    	LCALL SEG7
   31:	  006B	F5 A0		    	MOV P2,A
   32:	  006D	D0 E0		    	POP ACC
   33:	  006F	12 00 95	    	LCALL DELAY
   34:	  0072	B4 08 F0	    	CJNE A,#8,LOOP
   35:	  0075	D0 E0		    	POP ACC
   36:	  0077	75 A0 FF	    	MOV P2,#0FFH
   37:	  007A	32		    	RETI		    	;INT0中断返回
   38:
   39:	  007B	C0 E0		INT1S:	PUSH ACC		;INT1中断服务程序显示"1"~"8"
   40:	  007D	74 00		    	MOV A,#0
   41:	  007F	04		LOOP1:	INC A
   42:	  0080	C0 E0		   	PUSH ACC
   43:	  0082	12 00 A0	    	LCALL SEG7

ASEM-51 V1.2                                         Copyright (c) 1996 by W.W. Heinz                                         PAGE 2



 Line  I  Addr  Code            Source

   44:	  0085	F5 90		   	MOV P1,A
   45:	  0087	12 00 95	    	LCALL DELAY
   46:	  008A	D0 E0		   	POP ACC
   47:	  008C	B4 08 F0	    	CJNE A,#8,LOOP1
   48:	  008F	75 90 FF	    	MOV P1,#0FFH
   49:	  0092	D0 E0		    	POP ACC
   50:	  0094	32		    	RETI		    	;INT1中断返回
   51:
   52:	  0095	7F FF		DELAY:	MOV R7,#0FFH		;延时子程序
   53:	  0097	7E FF		D1:  	MOV R6,#0FFH
   54:	  0099	00		D2:  	NOP
   55:	  009A	00		    	NOP
   56:	  009B	DE FC		    	DJNZ R6,D2
   57:	  009D	DF F8		    	DJNZ R7,D1
   58:	  009F	22		    	RET
   59:
   60:	  00A0	04		SEG7: 	INC A               ;数码显示子程序
   61:	  00A1	83		    	MOVC A,@A+PC
   62:	  00A2	22		   	RET
   63:	  00A3	C0 F9 A4 B0	   	DB 0C0H,0F9H,0A4H,0B0H,99H,92H,82H,0F8H,80H    ;共阳极LED段码表
	  00A7	99 92 82 F8
	  00AB	80
   64:				    END
   65:





                     register banks used:  ---

                     no errors




ASEM-51 V1.2                                         Copyright (c) 1996 by W.W. Heinz                                         PAGE 3





	       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
D1				  CODE	    0097	  53
D2				  CODE	    0099	  54
DELAY				  CODE	    0095	  52
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
INT0S				  CODE	    0061	  26
INT1				  BIT	      B3
INT1S				  CODE	    007B	  39
IP				  DATA	      B8
IT0				  BIT	      88
IT1				  BIT	      8A
LOOP				  CODE	    0065	  28
LOOP1				  CODE	    007F	  41
MAIN				  CODE	    0040	  11
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

ASEM-51 V1.2                                         Copyright (c) 1996 by W.W. Heinz                                         PAGE 4



SYMBOL				  TYPE     VALUE	LINE
------------------------------------------------------------
RS1				  BIT	      D4
RXD				  BIT	      B0
SBUF				  DATA	      99
SCON				  DATA	      98
SEG7				  CODE	    00A0	  60
SINT				  CODE	    0023
SM0				  BIT	      9F
SM1				  BIT	      9E
SM2				  BIT	      9D
SP				  DATA	      81
ST0				  CODE	    004D	  16
ST1				  CODE	    004F	  17
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