fb50.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:	FB50.ASM
	Object File:	FB50.HEX
	List File:	FB50.LST



 Line  I  Addr  Code            Source

    1:				;这是一个用T1产生50Hz方波的例子，T1工作在方式1，查询工作
    2:				;方波由P1.0输出，fosc=12MHz
    3:		N      0000	        ORG     0
    4:	  0000	02 00 30	        LJMP    START
    5:		N      0030	        ORG     30H
    6:	  0030	75 81 60	START:  MOV     SP,#60H
    7:	  0033	75 89 10		MOV	TMOD,#10H	;设T1为方式1
    8:	  0036	75 8D D8	LOOP:	MOV	TH1,#0D8H	;送T1的初值
    9:	  0039	75 8B F0		MOV	TL1,#0F0H
   10:	  003C	D2 8E			SETB	TR1		;启动T1计数
   11:	  003E	10 8F 02	LL1:	JBC	TF1,LL2		;如果T1溢出，则清溢出标志并转移到LL2
   12:	  0041	80 FB			SJMP	LL1		;否则继续判断，等待
   13:	  0043	B2 90		LL2:	CPL	P1.0		;将P1.0取反，以输出方波
   14:	  0045	80 EF			SJMP	LOOP		;给T1重新赋初值
   15:				        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
LL1				  CODE	    003E	  11
LL2				  CODE	    0043	  13
LOOP				  CODE	    0036	   8
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

ASEM-51 V1.2                                         Copyright (c) 1996 by W.W. Heinz                                         PAGE 3



SYMBOL				  TYPE     VALUE	LINE
------------------------------------------------------------
SM0				  BIT	      9F
SM1				  BIT	      9E
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
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