kaiguan.lst

达盛单片机试验箱

A51 MACRO ASSEMBLER  KAIGUAN                                                              08/25/2006 20:28:38 PAGE     1


MACRO ASSEMBLER A51 V6.02
OBJECT MODULE PLACED IN C:\QTH\ASM\KAIGUAN.OBJ
ASSEMBLER INVOKED BY: C:\QTH\BIN\A51.exe C:\QTH\ASM\KAIGUAN.ASM DB SB

LOC  OBJ            LINE     SOURCE

                       1     ;PA口接开关作输入口，PB口接发光二极管作输出口
                       2     ;从PA口读取开关状态送到PB口以发光二极管显示
                       3     
  00F0                 4     A8255           DATA    00F0H                   ;PA口地址
  00F1                 5     B8255           DATA    00F1H                   ;PB口地址
  00F2                 6     C8255           DATA    00F2H                   ;PC口地址
  00F3                 7     D8255           DATA    00F3H                   ;状态口地址
                       8     
0000                   9                             ORG             0000H
                      10                     
0000 0130             11                             AJMP    MAIN
                      12                     
0030                  13                             ORG             0030H
                      14                             
0030                  15     MAIN:           
0030 7490             16                             MOV             A,#90H
0032 79F3             17                             MOV     R1,#0F3H                        ;PA口方式0输入，PB口方式0输
                             出
0034 F7               18                             MOV         @R1,A
0035 78F0             19     MAIN1:          MOV             R0,#0F0H                ;从PA口取开关状态
0037 E6               20                             MOV         A,@R0
0038 08               21                             INC             R0
0039 F6               22                             MOV     @R0,A                   ;把取得的状态送PB口
                      23                             
003A 0135             24                             AJMP    MAIN1
                      25                             
                      26                             END
                                                     
A51 MACRO ASSEMBLER  KAIGUAN                                                              08/25/2006 20:28:38 PAGE     2

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


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

A8255. . . . . . .  D ADDR   00F0H   A   
B8255. . . . . . .  D ADDR   00F1H   A   
C8255. . . . . . .  D ADDR   00F2H   A   
D8255. . . . . . .  D ADDR   00F3H   A   
MAIN . . . . . . .  C ADDR   0030H   A   
MAIN1. . . . . . .  C ADDR   0035H   A   


REGISTER BANK(S) USED: 0 


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