port1 (1).lst

来自「Proteus在MCS-51％26ARM7系统中的应用百例 Proteus在M」· LST 代码 · 共 44 行

A51 MACRO ASSEMBLER  PORT1__1_                                                            07/23/2006 10:56:20 PAGE     1


MACRO ASSEMBLER A51 V8.00
OBJECT MODULE PLACED IN Port1 (1).OBJ
ASSEMBLER INVOKED BY: E:\Keil\C51\BIN\A51.EXE Port1 (1).asm SET(SMALL) DEBUG EP

LOC  OBJ            LINE     SOURCE

0000                   1               ORG       00H
0000 74FE              2     LOOP:     MOV       A,  #0FEH           ;赋初值
0002 7A08              3               MOV       R2, #8                      ;设计数值
0004 F590              4     OUTPUT:   MOV       P1, A                       ;送P1口输出
0006 23                5               RL        A                           ;数据移位
0007 110E              6               ACALL     DELAY
0009 DAF9              7               DJNZ      R2, OUTPUT
000B 020000            8               LJMP      LOOP
000E 7E00              9     DELAY:    MOV       R6, #0                      ;延时子程序
0010 7F00             10               MOV       R7, #0
0012                  11     DELAYLOOP:
0012 DEFE             12               DJNZ      R6, DELAYLOOP
0014 DFFC             13               DJNZ      R7, DELAYLOOP
0016 22               14               RET
                      15               END
A51 MACRO ASSEMBLER  PORT1__1_                                                            07/23/2006 10:56:20 PAGE     2

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


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

DELAY. . . . . . .  C ADDR   000EH   A   
DELAYLOOP. . . . .  C ADDR   0012H   A   
LOOP . . . . . . .  C ADDR   0000H   A   
OUTPUT . . . . . .  C ADDR   0004H   A   
P1 . . . . . . . .  D ADDR   0090H   A   


REGISTER BANK(S) USED: 0 


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