sw1.lst

很实用的单片机例程

A51 MACRO ASSEMBLER  SW1                                                                  06/03/2005 12:04:46 PAGE     1


MACRO ASSEMBLER A51 V6.12
OBJECT MODULE PLACED IN .\SW1.OBJ
ASSEMBLER INVOKED BY: C:\Keil\C51\BIN\A51.EXE .\SW1.asm SET(SMALL) DEBUG EP

LOC  OBJ            LINE     SOURCE

                       1     ;按压（P1.4）,D00交替亮灭。按压K2（P1.5），D01交替亮灭
0000                   2     ORG 000H
0000 0130              3     AJMP START
0030                   4     ORG 30H
0030 855F81            5     START: MOV SP,5FH
0033 7580FF            6     MOV P0,#0FFH
0036 7590FF            7     MOV P1,#0FFH
0039 309406            8     L1: JNB P1.4,L2      ;按下按键开关K1，取反一次P0.0（灯亮），再按一下灭
003C 309508            9     JNB P1.5,L3          ;按下按键开关K2，取反一次P0.1（灯亮），再按一下灭
003F 020039           10     LJMP L1
0042 B280             11     L2: CPL P0.0
0044 020039           12     LJMP L1
0047 B281             13     L3: CPL P0.1
0049 020039           14     LJMP L1
                      15     END
A51 MACRO ASSEMBLER  SW1                                                                  06/03/2005 12:04:46 PAGE     2

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


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

L1 . . . . . . . .  C ADDR   0039H   A   
L2 . . . . . . . .  C ADDR   0042H   A   
L3 . . . . . . . .  C ADDR   0047H   A   
P0 . . . . . . . .  D ADDR   0080H   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)