lesson7-1.lst

单片机实验

A51 MACRO ASSEMBLER  LESSON7_1                                                            05/03/2008 15:58:16 PAGE     1


MACRO ASSEMBLER A51 V7.07
OBJECT MODULE PLACED IN lesson7-1.OBJ
ASSEMBLER INVOKED BY: C:\Keil\C51\BIN\A51.EXE lesson7-1.asm SET(SMALL) DEBUG EP

LOC  OBJ            LINE     SOURCE

                       1             
0000                   2            ORG   0000H
0000 020006            3             LJMP  LED
0003                   4             ORG   0003H
0003 02003C            5             LJMP  ZDFW
0006 75A0FE            6     LED:    MOV  P2,#0FEH
0009 A880              7             MOV  R0,P0
000B 7906              8            MOV  R1 , #06H
000D E8                9     NEXT:  MOV A,R0
000E 900030           10            MOV DPTR,#30H
0011 93               11             MOVC A,@A+DPTR
0012 F590             12             MOV P1,A
0014 E5A0             13             MOV A,P2
0016 23               14             RL A
0017 F5A0             15             MOV P2, A
0019 120020           16             LCALL DELAY
001C DEEF             17             DJNZ R6 , NEXT
001E 80E6             18             SJMP LED
0020 7F02             19     DELAY : MOV R7,#2
0022 7EC8             20     DE0:   MOV R6,#200
0024 DEFE             21     DE1:   DJNZ R6,DE1
0026 DFFA             22            DJNZ R7,DE0
0028 22               23              RET
                      24     
                      25                 
0029 74A0             26             MOV A,#0A0H  
002B F8               27             MOV  R0 ,A
002C 7A08             28             MOV  R2, #08H
002E D28A             29             SETB  IT1
0030 D2AF             30             SETB  EA
0032 D2AA             31             SETB  EX1
0034 90FEF0           32             MOV  DPTR,#0FEF0H
0037 7400             33             MOV A,#00H
0039 F0               34     LOOP :  MOVX  @DPTR ,A
003A 80FE             35     HERE :  SJMP  HERE
003C E0               36     ZDFW :  MOVX  A,@DPTR
003D F2               37             MOVX   @R0, A
003E A3               38             INC  DPTR
003F 08               39             INC  R0
0040 32               40             RETI
                      41     
                      42           END
A51 MACRO ASSEMBLER  LESSON7_1                                                            05/03/2008 15:58:16 PAGE     2

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


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

DE0. . . . . . . .  C ADDR   0022H   A   
DE1. . . . . . . .  C ADDR   0024H   A   
DELAY. . . . . . .  C ADDR   0020H   A   
EA . . . . . . . .  B ADDR   00A8H.7 A   
EX1. . . . . . . .  B ADDR   00A8H.2 A   
HERE . . . . . . .  C ADDR   003AH   A   
IT1. . . . . . . .  B ADDR   0088H.2 A   
LED. . . . . . . .  C ADDR   0006H   A   
LOOP . . . . . . .  C ADDR   0039H   A   
NEXT . . . . . . .  C ADDR   000DH   A   
P0 . . . . . . . .  D ADDR   0080H   A   
P1 . . . . . . . .  D ADDR   0090H   A   
P2 . . . . . . . .  D ADDR   00A0H   A   
ZDFW . . . . . . .  C ADDR   003CH   A   


REGISTER BANK(S) USED: 0 


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