sr03.lst

51单片机开发入门与典型实例

A51 MACRO ASSEMBLER  SR03                                                                 01/04/2007 17:04:16 PAGE     1


MACRO ASSEMBLER A51 V6.12
OBJECT MODULE PLACED IN .\SR03.OBJ
ASSEMBLER INVOKED BY: C:\KEIL\C51\BIN\A51.EXE .\SR03.ASM SET(SMALL) DEBUG EP

LOC  OBJ            LINE     SOURCE

                       1     ;程序：SR03.ASM
0000 7590FE            2      START:  MOV   P1, #11111110B    ; P1.0所接LED亮
0003 20A5FD            3              JB    P2.5 , $          ; 判断P2.5（K2键）是否为1
0006 75907F            4      ON:     MOV   P1,#01111111B     ; P1.7所接LED亮
0009 30A4F4            5              JNB   P2.4,  START      ; 判断P2.4(K1键)是是否为0
000C 80F8              6              JMP   ON                ; 未按K1键，则跳至ON
                       7              END                      ; 程序结束
                             
A51 MACRO ASSEMBLER  SR03                                                                 01/04/2007 17:04:16 PAGE     2

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


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

ON . . . . . . . .  C ADDR   0006H   A   
P1 . . . . . . . .  D ADDR   0090H   A   
P2 . . . . . . . .  D ADDR   00A0H   A   
START. . . . . . .  C ADDR   0000H   A   


REGISTER BANK(S) USED: 0 


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