led.lst

4位led显示

A51 MACRO ASSEMBLER  LED                                                                  11/16/2006 15:39:35 PAGE     1


MACRO ASSEMBLER A51 V8.00
OBJECT MODULE PLACED IN LED.OBJ
ASSEMBLER INVOKED BY: e:\Keil\C51\BIN\A51.EXE LED.asm SET(SMALL) DEBUG EP

LOC  OBJ            LINE     SOURCE

0000                   1           ORG 0000H
0000 802E              2           SJMP START
0030                   3           ORG 0030H
0030 7830              4     START:MOV R0,#30H
0032 7601              5           MOV @R0,#01H
0034 08                6           INC R0
0035 7602              7           MOV @R0,#02H
0037 08                8           INC R0
0038 7603              9           MOV @R0,#03H
003A 08               10           INC R0
003B 7604             11           MOV @R0,#04H
003D 7830             12      MAIN:MOV R0,#30H
003F 7904             13           MOV R1,#04H
0041 7A10             14           MOV R2,#10H
0043 E6               15      DISP:MOV A,@R0
0044 900056           16           MOV DPTR,#DISP_CODE
0047 93               17           MOVC A,@A+DPTR
0048 F5A0             18           MOV P2,A
004A EA               19           MOV A,R2
004B F5B0             20           MOV P3,A
004D 1166             21               ACALL DELAY
004F 08               22           INC R0
0050 23               23           RL A
0051 FA               24           MOV R2,A
0052 D9EF             25           DJNZ R1,DISP
0054 013D             26           AJMP MAIN
0056 40792430         27     DISP_CODE:DB 40H,79H,24H,30H,19H,12H,02H,78H
005A 19120278                
005E 00100803         28               DB 00H,10H,08H,03H,46H,21H,06H,0EH
0062 4621060E                
0066 7C0A             29     DELAY:MOV R4,#10
0068 7D0A             30         D1:MOV R5,#10
006A DDFE             31         D2:DJNZ R5,D2
006C DCFA             32            DJNZ R4,D1
006E 22               33            RET
                      34     
                      35            END
                             
A51 MACRO ASSEMBLER  LED                                                                  11/16/2006 15:39:35 PAGE     2

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


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

D1 . . . . . . . .  C ADDR   0068H   A   
D2 . . . . . . . .  C ADDR   006AH   A   
DELAY. . . . . . .  C ADDR   0066H   A   
DISP . . . . . . .  C ADDR   0043H   A   
DISP_CODE. . . . .  C ADDR   0056H   A   
MAIN . . . . . . .  C ADDR   003DH   A   
P2 . . . . . . . .  D ADDR   00A0H   A   
P3 . . . . . . . .  D ADDR   00B0H   A   
START. . . . . . .  C ADDR   0030H   A   


REGISTER BANK(S) USED: 0 


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