ex8-8.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:	EX8-8.ASM
	Object File:	EX8-8.HEX
	List File:	EX8-8.LST



 Line  I  Addr  Code            Source

    1:		N      0000		ORG    0000H       ;主程序入口
    2:	  0000	01 02			AJMP   MAIN
    3:	  0002	78 30		MAIN:  	MOV    R0,#30H     ;数据区首地址
    4:	  0004	7C 08			MOV    R4,#08H     ;八路模拟信号
    5:	  0006	79 00			MOV    R1,#00H     ;模拟通道0
    6:	  0008	75 A0 7F		MOV    P2,#7FH     ;ADC0809片选端口地址
    7:	  000B	74 00			MOV    A,#00H
    8:	  000D	F3			MOVX   @R1,A       ;启动ADC0809
    9:	  000E	E5 30		LOOP:   MOV    A,30H       ;A/D转换结果送P1口
   10:	  0010	F5 90			MOV    P1,A
   11:	  0012	30 B3 03		JNB    P3.3, LP    ;查询EOC状态
   12:	  0015	12 00 1A		LCALL  RDAD	   ;转换完成，调读取A/D转换结果子程序
   13:	  0018	80 F4			LP:    SJMP  LOOP  ;循环等待
   14:
   15:	  001A	E3		RDAD:	MOVX   A,@R1      ;读取转换结果子程序
   16:	  001B	F6			MOV    @R0,A      ;存入内存
   17:	  001C	08			INC    R0         ;数据区地址加1
   18:	  001D	09			INC    R1         ;修改模拟输入通道
   19:	  001E	F3			MOVX   @R1,A      ;启动下一路模拟通道进行转换
   20:	  001F	DC 09			DJNZ   R4,LOOP1   ;八路未完,循环
   21:	  0021	78 30			MOV    R0,#30H    ;八路输入转换完毕
   22:	  0023	7C 08			MOV    R4,#08H    ;
   23:	  0025	79 00			MOV    R1,#00H    ;
   24:	  0027	74 00			MOV    A,#00H
   25:	  0029	F3			MOVX   @R1,A      ;重新启动ADC0809
   26:	  002A	22		LOOP1:  RET               ;返回
   27:					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	    000E	   9
LOOP1				  CODE	    002A	  26
LP				  CODE	    0018	  13
MAIN				  CODE	    0002	   3
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
RDAD				  CODE	    001A	  15
REN				  BIT	      9C
RESET				  CODE	    0000
RI				  BIT	      98
RS0				  BIT	      D3
RS1				  BIT	      D4
RXD				  BIT	      B0
SBUF				  DATA	      99

ASEM-51 V1.2                                         Copyright (c) 1996 by W.W. Heinz                                         PAGE 3



SYMBOL				  TYPE     VALUE	LINE
------------------------------------------------------------
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