ledlamp1.lst

拷拷贝到你的Keil安装目录下的c51in文件夹中。 工程文件中需设置一下: project->Option for Target Target1 选Debug页 左侧最下面 Di

A51 MACRO ASSEMBLER  LEDLAMP1                                                             01/18/2003 17:55:27 PAGE     1


MACRO ASSEMBLER A51 V7.01
OBJECT MODULE PLACED IN Ledlamp1.OBJ
ASSEMBLER INVOKED BY: f:\Keil\C51\BIN\A51.EXE Ledlamp1.asm SET(SMALL) DEBUG EP

LOC  OBJ            LINE     SOURCE

                       1     ;用软件延时实现的流水灯
0000 74FE              2             MOV     A,#0FEH
0002 F590              3     MAIN:   MOV     P1,A
0004 12000B            4             LCALL   DELAY
0007 03                5             RR      A
0008 020002            6             LJMP    MAIN
                       7     
000B 7D0A              8     DELAY:  MOV     R5,#10
000D 7FFA              9     D1:     MOV     R7,#250
000F 7EFA             10     D2:     MOV     R6,#250
0011 DEFE             11     D3:     DJNZ    R6,D3
0013 DFFA             12             DJNZ    R7,D2
0015 DDF6             13             DJNZ    R5,D1
0017 22               14             RET
                      15             END             
A51 MACRO ASSEMBLER  LEDLAMP1                                                             01/18/2003 17:55:27 PAGE     2

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


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

D1 . . . . . . . .  C ADDR   000DH   A   
D2 . . . . . . . .  C ADDR   000FH   A   
D3 . . . . . . . .  C ADDR   0011H   A   
DELAY. . . . . . .  C ADDR   000BH   A   
MAIN . . . . . . .  C ADDR   0002H   A   
P1 . . . . . . . .  D ADDR   0090H   A   


REGISTER BANK(S) USED: 0 


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