starled2.lst

单片机闪烁灯实验源程序

A51 MACRO ASSEMBLER  STARLED2                                                             07/26/2007 10:47:17 PAGE     1


MACRO ASSEMBLER A51 V6.12
OBJECT MODULE PLACED IN .\starled2.OBJ
ASSEMBLER INVOKED BY: C:\单片机\Keil\C51\BIN\A51.EXE .\starled2.asm SET(SMALL) DEBUG EP

LOC  OBJ            LINE     SOURCE

0000                   1                     ORG 0        
0000 C290              2     START:          CLR P1.0 
0002 12000D            3                     LCALL DELAY  
0005 D290              4                     SETB P1.0           ;使P1.0变为1。
0007 12000D            5                     LCALL DELAY 
000A 020000            6                     LJMP START        ;转入主程序
000D 7D14              7     DELAY:          MOV R5,#20            ;延时子程序，延时0.2秒 
000F 7E14              8     D1:             MOV R6,#20 
0011 7FF8              9     D2:             MOV R7,#248 
0013 DFFE             10                     DJNZ R7,$ 
0015 DEFA             11                     DJNZ R6,D2 
0017 DDF6             12                     DJNZ R5,D1 
0019 22               13                     RET 
                      14                     END 
A51 MACRO ASSEMBLER  STARLED2                                                             07/26/2007 10:47:17 PAGE     2

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


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

D1 . . . . . . . .  C ADDR   000FH   A   
D2 . . . . . . . .  C ADDR   0011H   A   
DELAY. . . . . . .  C ADDR   000DH   A   
P1 . . . . . . . .  D ADDR   0090H   A   
START. . . . . . .  C ADDR   0000H   A   


REGISTER BANK(S) USED: 0 


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