001.lst

利用左移方式实现流水灯的闪烁与游走.这个是单片机程序.

A51 MACRO ASSEMBLER  001                                                                  08/10/2007 10:34:20 PAGE     1


MACRO ASSEMBLER A51 V8.00
OBJECT MODULE PLACED IN 001.OBJ
ASSEMBLER INVOKED BY: C:\Keil\C51\BIN\A51.EXE 001.ASM SET(SMALL) DEBUG EP

LOC  OBJ            LINE     SOURCE

0000                   1           ORG 0000H
0000 020030            2               LJMP START
0030                   3               ORG 0030H
0030 758170            4     START:MOV SP,#70H
0033 74FE              5           MOV A,#0FEH
0035 7A08              6               MOV R2,#08H
                       7     
0037 F590              8     LOOP: MOV P1,A
0039 12004C            9           LCALL DELAY
003C 23               10               RL A
003D DAF8             11               DJNZ R2,LOOP
003F 7A08             12               MOV R2,#08H
                      13     
0041 03               14     LOOP1:RR A
0042 F590             15           MOV P1,A
0044 12004C           16               LCALL DELAY
0047 DAF8             17               DJNZ R2,LOOP1
0049 020030           18               LJMP START
                      19     
004C                  20     DELAY: 
004C 7B32             21           MOV R3,#50
004E 7C14             22        D1:MOV R4,#20
0050 7DF8             23        D2:MOV R5,#248
0052 DDFE             24        D3:DJNZ R5,D3
0054 DCFA             25           DJNZ R4,D2
0056 DBF6             26               DJNZ R3,D1
0058 22               27               RET
                      28               END
A51 MACRO ASSEMBLER  001                                                                  08/10/2007 10:34:20 PAGE     2

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


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

D1 . . . . . . . .  C ADDR   004EH   A   
D2 . . . . . . . .  C ADDR   0050H   A   
D3 . . . . . . . .  C ADDR   0052H   A   
DELAY. . . . . . .  C ADDR   004CH   A   
LOOP . . . . . . .  C ADDR   0037H   A   
LOOP1. . . . . . .  C ADDR   0041H   A   
P1 . . . . . . . .  D ADDR   0090H   A   
SP . . . . . . . .  D ADDR   0081H   A   
START. . . . . . .  C ADDR   0030H   A   


REGISTER BANK(S) USED: 0 


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