flash.lst

初学者参考：为89c51下P1口循环点亮程序

A51 MACRO ASSEMBLER  FLASH                                                                01/01/2000 08:03:55 PAGE     1


MACRO ASSEMBLER A51 V7.00a
OBJECT MODULE PLACED IN flash.OBJ
ASSEMBLER INVOKED BY: C:\Keil\C51\BIN\A51.EXE flash.asm SET(SMALL) DEBUG EP

LOC  OBJ            LINE     SOURCE

0000                   1            org  00H
0000 7401              2     main:  mov a,#01H
0002 F590              3     start: mov p1,a
0004 23                4            rl a
0005 1109              5            acall delay
0007 0102              6            ajmp start
                       7     
0009 7B0A              8     delay: mov r3,#0aH
000B 7CC8              9     d1:    mov r4,#0c8H
000D 7DFA             10     d2:    mov r5,#0faH
000F DDFE             11            djnz r5,$
0011 DCFA             12            djnz r4,d2
0013 DBF6             13            djnz r3,d1
0015 22               14            ret
                      15            end;
A51 MACRO ASSEMBLER  FLASH                                                                01/01/2000 08:03:55 PAGE     2

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


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

D1 . . . . . . . .  C ADDR   000BH   A   
D2 . . . . . . . .  C ADDR   000DH   A   
DELAY. . . . . . .  C ADDR   0009H   A   
MAIN . . . . . . .  C ADDR   0000H   A   
P1 . . . . . . . .  D ADDR   0090H   A   
START. . . . . . .  C ADDR   0002H   A   


REGISTER BANK(S) USED: 0 


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