查询式键盘设计.lst

基于Proteus的51系列单片机设计与仿真

A51 MACRO ASSEMBLER  _檠_式键臺蒧计                                                       05/14/2008 16:20:05 PAGE     1


MACRO ASSEMBLER A51 V7.07
OBJECT MODULE PLACED IN 查询式键盘设计.OBJ
ASSEMBLER INVOKED BY: C:\Keil\C51\BIN\A51.EXE 查询式键盘设计.ASM SET(SMALL) DEBUG EP

LOC  OBJ            LINE     SOURCE

0000                   1          ORG   00H
0000 75B0FF            2          MOV   P3,#0FFH
0003 75A000            3          MOV   P2,#00H
0006 E5B0              4     KEY: MOV   A,P3
0008 B4FF02            5          CJNE  A,#0FFH,KK    ;是否有键按下?
000B 0106              6          AJMP  KEY
000D E5B0              7     KK:  MOV   A,P3
000F B4FF02            8          CJNE  A,#0FFH,KK1   ;消除按键抖动
0012 0106              9          AJMP  KEY
0014 B4FE08           10     KK1: CJNE  A,#0FEH,KK2
0017 75A006           11          MOV   P2,#06H
001A 12006C           12          LCALL DELAY
001D 016A             13          AJMP  LP
001F B4FD08           14     KK2: CJNE  A,#0FDH,KK3
0022 75A05B           15          MOV   P2,#5BH
0025 12006C           16          LCALL DELAY
0028 016A             17          AJMP  LP
002A B4FB08           18     KK3: CJNE  A,#0FBH,KK4
002D 75A04F           19          MOV   P2,#4FH
0030 12006C           20          LCALL DELAY
0033 016A             21          AJMP  LP
0035 B4F708           22     KK4: CJNE  A,#0F7H,KK5
0038 75A066           23          MOV   P2,#66H
003B 12006C           24          LCALL DELAY
003E 016A             25          AJMP  LP
0040 B4EF08           26     KK5: CJNE  A,#0EFH,KK6
0043 75A06D           27          MOV   P2,#6DH
0046 12006C           28          LCALL DELAY
0049 016A             29          AJMP  LP
004B B4DF08           30     KK6: CJNE  A,#0DFH,KK7
004E 75A07D           31          MOV   P2,#7DH
0051 12006C           32          LCALL DELAY
0054 016A             33          AJMP  LP
0056 B4BF08           34     KK7: CJNE  A,#0BFH,KK8
0059 75A007           35          MOV   P2,#07H
005C 12006C           36          LCALL DELAY
005F 016A             37          AJMP  LP
0061 B47F06           38     KK8: CJNE  A,#7FH,LP
0064 75A07F           39          MOV   P2,#7FH
0067 12006C           40          LCALL DELAY
006A 0106             41     LP:  AJMP  KEY
006C 7F01             42     DELAY:MOV  R7,#01H
006E 7E28             43     DELA: MOV  R6,#28H
0070 7D5A             44     DEL:  MOV  R5,#5AH
0072 DDFE             45          DJNZ  R5,$
0074 DEFA             46          DJNZ  R6,DEL
0076 DFF6             47          DJNZ  R7,DELA
0078 22               48          RET
                      49          END
A51 MACRO ASSEMBLER  _檠_式键臺蒧计                                                       05/14/2008 16:20:05 PAGE     2

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


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

DEL. . . . . . . .  C ADDR   0070H   A   
DELA . . . . . . .  C ADDR   006EH   A   
DELAY. . . . . . .  C ADDR   006CH   A   
KEY. . . . . . . .  C ADDR   0006H   A   
KK . . . . . . . .  C ADDR   000DH   A   
KK1. . . . . . . .  C ADDR   0014H   A   
KK2. . . . . . . .  C ADDR   001FH   A   
KK3. . . . . . . .  C ADDR   002AH   A   
KK4. . . . . . . .  C ADDR   0035H   A   
KK5. . . . . . . .  C ADDR   0040H   A   
KK6. . . . . . . .  C ADDR   004BH   A   
KK7. . . . . . . .  C ADDR   0056H   A   
KK8. . . . . . . .  C ADDR   0061H   A   
LP . . . . . . . .  C ADDR   006AH   A   
P2 . . . . . . . .  D ADDR   00A0H   A   
P3 . . . . . . . .  D ADDR   00B0H   A   


REGISTER BANK(S) USED: 0 


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