counter1.lst

多个仿真例子


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:	COUNTER1.ASM
	Object File:	COUNTER1.HEX
	List File:	COUNTER1.LST



 Line  I  Addr  Code            Source

    1:				;这是一个利用T0进行工件计数的例子
    2:				;系统的晶振频率12MHz，工件计数脉冲加到T0的输入端，T1做定时器，
    3:				;每隔一秒钟检测了一次T0中的计数值，当检测到100个工件数时，
    4:				;使P1.0端口输出信号变反。
    5:		N      0000		ORG	0
    6:	  0000	75 89 16		MOV	TMOD,#16H	;T1方式1，定时器。T0方式2，计数
    7:	  0003	75 8B B0		MOV	TL1,#0B0H
    8:	  0006	75 8D 3C		MOV	TH1,#3CH	;T1定时50ms
    9:	  0009	75 8A 9C		MOV	TL0,#156	;T0计数100次的初值
   10:	  000C	75 8C 9C		MOV	TH0,#156
   11:	  000F	7F 14			MOV	R7,#20		;软件计数20次，为一秒钟
   12:	  0011	C2 AF			CLR	EA		;关中断
   13:	  0013	D2 8E			SETB	TR1		;启动T1定时
   14:	  0015	D2 8C			SETB	TR0		;启动T0计数
   15:	  0017	10 8F 02	LOOP:	JBC	TF1,LQ
   16:	  001A	80 FB			SJMP	LOOP
   17:	  001C	75 8D 3C	LQ:	MOV	TH1,#3CH
   18:	  001F	75 8B B0		MOV	TL1,#0B0H
   19:	  0022	DF F3			DJNZ	R7,LOOP		;一秒未到，则转
   20:	  0024	7F 14			MOV	R7,#20
   21:	  0026	30 8D EE		JNB	TF0,LOOP	;计数不足100，则转
   22:	  0029	C2 8D			CLR	TF0
   23:	  002B	B2 90			CPL	P1.0
   24:	  002D	80 E8			SJMP	LOOP
   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	    0017	  15
LQ				  CODE	    001C	  17
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

ASEM-51 V1.2                                         Copyright (c) 1996 by W.W. Heinz                                         PAGE 3



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