00.lst

51单片机定时器的设计

00                                                                                                            PAGE 1

                       1    $MOD52
                       2    
0000                   3            ORG     0000H
0000 020030            4            LJMP    START
                       5    
0030                   6            ORG     0030H
0030 850090            7    START:  MOV     P1,00H
0033 D290              8            SETB    P1.0
0035 1166              9            ACALL   DELAY2
0037 C290             10            CLR     P1.0
0039 D291             11            SETB    P1.1
003B 1166             12            ACALL   DELAY2
003D C291             13            CLR     P1.1
003F D292             14            SETB    P1.2
0041 1166             15            ACALL   DELAY2
0043 C292             16            CLR     P1.2
0045 D293             17            SETB    P1.3
0047 1166             18            ACALL   DELAY2
0049 C293             19            CLR     P1.3
004B D294             20            SETB    P1.4
004D 1166             21            ACALL   DELAY2
004F C294             22            CLR     P1.4
0051 D295             23            SETB    P1.5
0053 1166             24            ACALL   DELAY2
0055 C295             25            CLR     P1.5
0057 D296             26            SETB    P1.6
0059 1166             27            ACALL   DELAY2
005B C296             28            CLR     P1.6
005D D297             29            SETB    P1.7
005F 1166             30            ACALL   DELAY2
0061 C297             31            CLR     P1.7
0063 020030           32            LJMP    START
0066 7BFF             33    DELAY2: MOV     R3,#0FFH
0068 12006E           34      DL3:  LCALL   DELAY1
006B DBFB             35            DJNZ    R3,DL3
006D 22               36            RET
006E 79FF             37    DELAY1: MOV     R1,#0FFH
0070 7A18             38      DL2:  MOV     R2,#18H
0072 00               39      DL1:  NOP
0073 00               40            NOP
0074 DAFC             41            DJNZ    R2,DL1
0076 D9F8             42            DJNZ    R1,DL2
0078 22               43            RET
                      44            END

VERSION 1.2h ASSEMBLY COMPLETE, 0 ERRORS FOUND
00                                                                                                            PAGE 2

DELAY1 . . . . . . . . . . . . .  C ADDR  006EH  
DELAY2 . . . . . . . . . . . . .  C ADDR  0066H  
DL1. . . . . . . . . . . . . . .  C ADDR  0072H  
DL2. . . . . . . . . . . . . . .  C ADDR  0070H  
DL3. . . . . . . . . . . . . . .  C ADDR  0068H  
P1 . . . . . . . . . . . . . . .  D ADDR  0090H  PREDEFINED  
START. . . . . . . . . . . . . .  C ADDR  0030H