60dao.lst

可实现0到99秒的计时。程序简单易读


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:	60DAO.ASM
	Object File:	60DAO.HEX
	List File:	60DAO.LST



 Line  I  Addr  Code            Source

    1:		N      0000	            ORG 0000H
    2:	  0000	02 00 30	            LJMP MAIN
    3:		N      000B	            ORG 000BH
    4:	  000B	80 56		            SJMP T0Z
    5:		N      0030	            ORG 0030H
    6:	  0030	75 89 01	       MAIN:MOV TMOD,#01H
    7:	  0033	75 8C 9E	            MOV TH0,#9EH
    8:	  0036	75 8A 58	            MOV TL0,#58H
    9:	  0039	90 00 76	            MOV DPTR,#TAB
   10:	  003C	78 00		            MOV R0,#00H
   11:	  003E	79 00		            MOV R1,#00H
   12:	  0040	D2 A9		            SETB ET0
   13:	  0042	D2 AF		            SETB EA
   14:	  0044	D2 8C		            SETB TR0
   15:	  0046	E8		       DISP:MOV A,R0
   16:	  0047	75 F0 0A	            MOV B,#10
   17:	  004A	84		            DIV AB
   18:	  004B	93		            MOVC A,@A+DPTR
   19:	  004C	F5 A0		            MOV P2,A
   20:	  004E	D2 B0		            SETB P3.0
   21:	  0050	12 00 86	            LCALL DELAY
   22:	  0053	C2 B0		            CLR P3.0
   23:	  0055	E5 F0		            MOV A,B
   24:	  0057	93		            MOVC A,@A+DPTR
   25:	  0058	F5 A0		            MOV P2,A
   26:	  005A	D2 B1		            SETB P3.1
   27:	  005C	12 00 86	            LCALL DELAY
   28:	  005F	C2 B1		            CLR P3.1
   29:	  0061	80 E3		            SJMP DISP
   30:	  0063	75 8C 9E	        T0Z:MOV TH0,#9EH
   31:	  0066	75 8A 58	            MOV TL0,#58H
   32:	  0069	09		            INC R1
   33:	  006A	B9 28 08	            CJNE R1,#40,LP
   34:	  006D	08		            INC R0
   35:	  006E	79 00		            MOV R1,#00
   36:	  0070	B8 3C 02	            CJNE R0,#60,LP
   37:	  0073	78 00		            MOV R0,#00
   38:	  0075	32		         LP:RETI
   39:	  0076	C0 F9 A4 B0	        TAB:DB 0C0H,0F9H,0A4H,0B0H
   40:	  007A	99 92 82 F8	            DB 99H,92H,82H,0F8H
   41:	  007E	80 90 88 83	            DB 80H,90H,88H,83H
   42:	  0082	C6 A1 86 8E	            DB 0C6H,0A1H,86H,8EH
   43:	  0086	7F 14		      DELAY:MOV R7,#20

ASEM-51 V1.2                                         Copyright (c) 1996 by W.W. Heinz                                         PAGE 2



 Line  I  Addr  Code            Source

   44:	  0088	7E C8		         D1:MOV R6,#200
   45:	  008A	DE FE		            DJNZ R6,$
   46:	  008C	DF FA		            DJNZ R7,D1
   47:	  008E	22		            RET
   48:				            END
   49:





                     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	    0088	  44
DELAY				  CODE	    0086	  43
DISP				  CODE	    0046	  15
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
LP				  CODE	    0075	  38
MAIN				  CODE	    0030	   6
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

ASEM-51 V1.2                                         Copyright (c) 1996 by W.W. Heinz                                         PAGE 4



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
T0Z				  CODE	    0063	  30
T1				  BIT	      B5
TAB				  CODE	    0076	  39
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