中断系统的应用（一）.lst

基于Proteus的51系列单片机设计与仿真

A51 MACRO ASSEMBLER  謃断系统的觃用__一__                                                 05/03/2008 17:55:42 PAGE     1


MACRO ASSEMBLER A51 V7.07
OBJECT MODULE PLACED IN 中断系统的应用（一）.OBJ
ASSEMBLER INVOKED BY: C:\Keil\C51\BIN\A51.EXE 中断系统的应用（一）.ASM SET(SMALL) DEBUG EP

LOC  OBJ            LINE     SOURCE

0000                   1            ORG  00H
0000 0105              2            AJMP START
0003                   3            ORG  03H
0003 0121              4            AJMP INT
0005 D2A8              5     START: SETB EX0
0007 D288              6            SETB IT0
0009 D2AF              7            SETB EA
000B 758170            8            MOV  SP,#70H
000E 90004E            9     LP:    MOV  DPTR,#TABLE    ;TABLE表的地址存入DPTR
0011 7400             10     LP0:   MOV  A,#00H         ;清除累加器
0013 93               11     LP1:   MOVC A,@A+DPTR      ;查表
0014 B41B02           12            CJNE A,#1BH,LP2     ;取出的代码不是结束码，则进行下一步操作
0017 010E             13            AJMP LP             ;是结束码，则重新进行操作
0019 F580             14     LP2:   MOV  P0,A           ;将A中的值送P1口，显示
001B 120041           15            LCALL DELAY         ;等待1s
001E A3               16            INC  DPTR           ;数据指针加1，指向下1个码
001F 0111             17            AJMP LP0            ;返回，取码
0021 C0E0             18     INT:   PUSH ACC
0023 C0D0             19            PUSH PSW       
0025 D2D3             20            SETB RS0
0027 C2D4             21            CLR  RS1
0029 900067           22            MOV  DPTR,#TABLE1
002C 7400             23     INTLP1:MOV  A,#00H
002E 93               24            MOVC A,@A+DPTR
002F B41B02           25            CJNE A,#1BH,INTLP2
0032 013C             26            AJMP  INTLP3
0034 F580             27     INTLP2:MOV  P0,A
0036 120041           28            LCALL DELAY
0039 A3               29            INC  DPTR
003A 012C             30            AJMP INTLP1
003C D0D0             31     INTLP3:POP  PSW
003E D0E0             32            POP  ACC
0040 32               33            RETI
0041 7F0A             34     DELAY: MOV  R7,#10         ;1s延时子程序
0043 7EC8             35     DE1:   MOV  R6,#200
0045 7DF8             36     DE2:   MOV  R5,#248
0047 DDFE             37            DJNZ R5,$
0049 DEFA             38            DJNZ R6,DE2
004B DFF6             39            DJNZ R7,DE1
004D 22               40            RET
004E FEFDFBF7         41     TABLE: DB  0feH,0fdH,0fbH,0f7H ;正向流水灯
0052 EFDFBF7F         42            DB  0efH,0dfH,0bfH,07fH
0056 BFDFEFF7         43            DB  0bfH,0dfH,0efH,0f7H ;反向流水灯
005A FBFDFEFF         44            DB  0fbH,0fdH,0feH,0ffH
005E AA55AA55         45            DB  0aaH,55H,0aaH,55H  ;隔灯闪烁
0062 AA55FF           46            DB  0aaH,55H,0ffH       
0065 1B               47            DB  1BH                ;退出码
0066 22               48            RET
0067 FF00FF00         49     TABLE1:DB  0FFH,00H,0FFH,00H,0FFH,00H;闪烁5次
006B FF00                    
006D FF00FF00         50            DB  0FFH,00H,0FFH,00H,1BH
0071 1B                      
0072 22               51            RET
                      52            END
A51 MACRO ASSEMBLER  謃断系统的觃用__一__                                                 05/03/2008 17:55:42 PAGE     2

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


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

ACC. . . . . . . .  D ADDR   00E0H   A   
DE1. . . . . . . .  C ADDR   0043H   A   
DE2. . . . . . . .  C ADDR   0045H   A   
DELAY. . . . . . .  C ADDR   0041H   A   
EA . . . . . . . .  B ADDR   00A8H.7 A   
EX0. . . . . . . .  B ADDR   00A8H.0 A   
INT. . . . . . . .  C ADDR   0021H   A   
INTLP1 . . . . . .  C ADDR   002CH   A   
INTLP2 . . . . . .  C ADDR   0034H   A   
INTLP3 . . . . . .  C ADDR   003CH   A   
IT0. . . . . . . .  B ADDR   0088H.0 A   
LP . . . . . . . .  C ADDR   000EH   A   
LP0. . . . . . . .  C ADDR   0011H   A   
LP1. . . . . . . .  C ADDR   0013H   A   
LP2. . . . . . . .  C ADDR   0019H   A   
P0 . . . . . . . .  D ADDR   0080H   A   
PSW. . . . . . . .  D ADDR   00D0H   A   
RS0. . . . . . . .  B ADDR   00D0H.3 A   
RS1. . . . . . . .  B ADDR   00D0H.4 A   
SP . . . . . . . .  D ADDR   0081H   A   
START. . . . . . .  C ADDR   0005H   A   
TABLE. . . . . . .  C ADDR   004EH   A   
TABLE1 . . . . . .  C ADDR   0067H   A   


REGISTER BANK(S) USED: 0 


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