0~9led

基于单片机的0~9led倒序显示

A51 MACRO ASSEMBLER  EG                                                                   12/17/2012 16:31:06 PAGE     1


MACRO ASSEMBLER A51 V7.07
OBJECT MODULE PLACED IN eg.OBJ
ASSEMBLER INVOKED BY: H:\Program Files\keil 2\C51\BIN\A51.EXE eg.asm SET(SMALL) DEBUG EP

LOC  OBJ            LINE     SOURCE

  00A0                 1             LED1 BIT P2.0
0000                   2             ORG 0000H
0000 020030            3             LJMP START
0030                   4             ORG 030H
0030 752000            5     START:  MOV 20H,#00H  
0033 E520              6             MOV A,20H       
0035 7C03              7             MOV R4,#3
0037 780A              8             MOV R0,#10
0039                   9     MAIN:     
0039 900071           10             MOV DPTR,#TAB   
003C 93               11             MOVC A,@A+DPTR  
003D F5B0             12             MOV P3,A            
003F 1157             13             ACALL DEL          
0041 E520             14             MOV A,20H       
0043 04               15             INC A                                   
0044 F520             16             MOV 20H, A
0046 D8F1             17             DJNZ R0,MAIN
0048 8001             18             JMP LED
004A 32               19             RETI
004B C2A0             20     LED:    CLR LED1
004D 1164             21             ACALL DEL01
004F D2A0             22             SETB LED1
0051 1164             23             ACALL DEL01
0053 DCF6             24             DJNZ R4,LED
0055 80D9             25             JMP START
0057 7F05             26     DEL:    MOV R7,#05
0059 7EFF             27     DEL1:   MOV R6,#0FFH
005B 7DFF             28     DEL2:   MOV R5,#0FFH
005D DDFE             29     DEL3:   DJNZ R5,DEL3
005F DEFA             30             DJNZ R6,DEL2
0061 DFF6             31             DJNZ R7,DEL1
0063 32               32             RETI
0064 7903             33     DEL01:  MOV R1,#03
0066 7AFF             34     DEL11:  MOV R2,#0FFH
0068 7BFF             35     DEL21:  MOV R3,#0FFH
006A DBFE             36     DEL31:  DJNZ R3,DEL31
006C DAFA             37             DJNZ R2,DEL21
006E D9F6             38             DJNZ R1,DEL11
0070 32               39             RETI
0071 9080F882         40     TAB:    DB 90H,80H,0F8H,82H,92H,99H,0B0H,0A4H,0F9H,0C0H  
0075 9299B0A4                
0079 F9C0                    
                      41             END
                             
A51 MACRO ASSEMBLER  EG                                                                   12/17/2012 16:31:06 PAGE     2

SYMBOL TABLE LISTING
------ ----- -------


N A M E             T Y P E  V A L U E   ATTRIBUTES

DEL. . . . . . . .  C ADDR   0057H   A   
DEL01. . . . . . .  C ADDR   0064H   A   
DEL1 . . . . . . .  C ADDR   0059H   A   
DEL11. . . . . . .  C ADDR   0066H   A   
DEL2 . . . . . . .  C ADDR   005BH   A   
DEL21. . . . . . .  C ADDR   0068H   A   
DEL3 . . . . . . .  C ADDR   005DH   A   
DEL31. . . . . . .  C ADDR   006AH   A   
LED. . . . . . . .  C ADDR   004BH   A   
LED1 . . . . . . .  B ADDR   00A0H.0 A   
MAIN . . . . . . .  C ADDR   0039H   A   
P2 . . . . . . . .  D ADDR   00A0H   A   
P3 . . . . . . . .  D ADDR   00B0H   A   
START. . . . . . .  C ADDR   0030H   A   
TAB. . . . . . . .  C ADDR   0071H   A   


REGISTER BANK(S) USED: 0 


ASSEMBLY COMPLETE.  0 WARNING(S), 0 ERROR(S)