measure_freq.lst

51系列单片机实验课程：按键显示程序 （在数字键上按数字

A51 MACRO ASSEMBLER  MEASURE_FREQ                                                         11/28/2007 15:45:43 PAGE     1


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

LOC  OBJ            LINE     SOURCE

0000                   1             ORG     0000H
0000 2100              2             AJMP    START
001B                   3             ORG     001BH
001B 217D              4             AJMP    T1INT
0100                   5             ORG     0100H
                       6     
  0030                 7     DISBUF  EQU     30H
  0038                 8     POSIT   EQU     38H
  0039                 9     TIME    EQU     39H
  0040                10     FREQ    EQU     40H
                      11     
0100                  12     START:
0100 90019B           13             MOV     DPTR, #LEDCODE  
0103 758915           14             MOV     TMOD, #15H
0106 758A00           15             MOV     TL0, #0
0109 758C00           16             MOV     TH0, #0
010C 758BB0           17             MOV     TL1, #0B0H
010F 758D3C           18             MOV     TH1, #3CH
0112 D28C             19             SETB    TR0
0114 D28E             20             SETB    TR1
0116 D2AB             21             SETB    ET1
0118 D2AF             22             SETB    EA
                      23     
011A                  24     LOOP:
011A 3138             25             CALL    COUNTER
011C 314C             26             CALL    DISPLAY
011E 211A             27             AJMP    LOOP
                      28     
0120                  29     SEGLOCK:
0120 D293             30             SETB    P1.3
0122 00               31             NOP
0123 C293             32             CLR     P1.3
0125 22               33             RET
                      34     
0126                  35     POSITLOCK:
0126 D292             36             SETB    P1.2
0128 00               37             NOP
0129 C292             38             CLR     P1.2
012B 22               39             RET
                      40     
012C                  41     NODISP:
012C 758000           42             MOV     P0, #0
012F D292             43             SETB    P1.2
0131 00               44             NOP     
0132 C292             45             CLR     P1.2
0134 22               46             RET
                      47     
0135                  48     DELAY:
0135 DCFE             49             DJNZ    R4, $
0137 22               50             RET
                      51     
0138                  52     COUNTER:
0138 E540             53             MOV     A, FREQ
013A 75F064           54             MOV     B, #100
013D 84               55             DIV     AB
013E F530             56             MOV     DISBUF, A
0140 E5F0             57             MOV     A, B
0142 75F00A           58             MOV     B, #10
A51 MACRO ASSEMBLER  MEASURE_FREQ                                                         11/28/2007 15:45:43 PAGE     2

0145 84               59             DIV     AB
0146 F531             60             MOV     DISBUF+1, A
0148 85F032           61             MOV     DISBUF+2, B
014B 22               62             RET
                      63     
014C                  64     DISPLAY:
014C E530             65             MOV     A, DISBUF
014E 93               66             MOVC    A, @A+DPTR
014F F580             67             MOV     P0, A
0151 3120             68             CALL    SEGLOCK
0153 758004           69             MOV     P0, #04H
0156 3126             70             CALL    POSITLOCK
0158 3135             71             CALL    DELAY
015A 312C             72             CALL    NODISP
                      73             
015C E531             74             MOV     A, DISBUF+1
015E 93               75             MOVC    A, @A+DPTR
015F F580             76             MOV     P0, A
0161 3120             77             CALL    SEGLOCK
0163 758002           78             MOV     P0, #02H
0166 3126             79             CALL    POSITLOCK
0168 3135             80             CALL    DELAY
016A 312C             81             CALL    NODISP
                      82             
016C E532             83             MOV     A, DISBUF+2
016E 93               84             MOVC    A, @A+DPTR
016F F580             85             MOV     P0, A
0171 3120             86             CALL    SEGLOCK
0173 758001           87             MOV     P0, #01H
0176 3126             88             CALL    POSITLOCK
0178 3135             89             CALL    DELAY
017A 312C             90             CALL    NODISP
017C 22               91             RET
                      92     
017D                  93     T1INT:
017D C0E0             94             PUSH    ACC
017F C28E             95             CLR     TR1
0181 758D3C           96             MOV     TH1, #3CH
0184 758BB0           97             MOV     TL1, #0B0H
0187 D5390C           98             DJNZ    TIME, INTOUT
018A 858A40           99             MOV     FREQ, TL0
018D 758A00          100             MOV     TL0, #0
0190 758C00          101             MOV     TH0, #0
0193 753914          102             MOV     TIME, #20
                     103     
0196                 104     INTOUT:
0196 D0E0            105             POP     ACC
0198 D28E            106             SETB    TR1
019A 32              107             RETI
                     108     
019B                 109     LEDCODE:  
019B C0F9A4B0        110             DB      0C0H,0F9H,0A4H,0B0H,99H,92H,82H,0F8H,80H,90H
019F 999282F8                
01A3 8090                    
                     111               ;       0   1     2    3   4   5   6    7   8   9
01A5 8883C6A1        112             DB      88H,83H,0C6H,0A1H,86H,08EH,0BFH,0FFH,0F7H
01A9 868EBFFF                
01AD F7                      
                     113               ;      A   B    C   D    E    F   -   消隐  _
                     114     ;================================================
                     115             END
A51 MACRO ASSEMBLER  MEASURE_FREQ                                                         11/28/2007 15:45:43 PAGE     3

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


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

ACC. . . . . . . .  D ADDR   00E0H   A   
B. . . . . . . . .  D ADDR   00F0H   A   
COUNTER. . . . . .  C ADDR   0138H   A   
DELAY. . . . . . .  C ADDR   0135H   A   
DISBUF . . . . . .  N NUMB   0030H   A   
DISPLAY. . . . . .  C ADDR   014CH   A   
EA . . . . . . . .  B ADDR   00A8H.7 A   
ET1. . . . . . . .  B ADDR   00A8H.3 A   
FREQ . . . . . . .  N NUMB   0040H   A   
INTOUT . . . . . .  C ADDR   0196H   A   
LEDCODE. . . . . .  C ADDR   019BH   A   
LOOP . . . . . . .  C ADDR   011AH   A   
NODISP . . . . . .  C ADDR   012CH   A   
P0 . . . . . . . .  D ADDR   0080H   A   
P1 . . . . . . . .  D ADDR   0090H   A   
POSIT. . . . . . .  N NUMB   0038H   A   
POSITLOCK. . . . .  C ADDR   0126H   A   
SEGLOCK. . . . . .  C ADDR   0120H   A   
START. . . . . . .  C ADDR   0100H   A   
T1INT. . . . . . .  C ADDR   017DH   A   
TH0. . . . . . . .  D ADDR   008CH   A   
TH1. . . . . . . .  D ADDR   008DH   A   
TIME . . . . . . .  N NUMB   0039H   A   
TL0. . . . . . . .  D ADDR   008AH   A   
TL1. . . . . . . .  D ADDR   008BH   A   
TMOD . . . . . . .  D ADDR   0089H   A   
TR0. . . . . . . .  B ADDR   0088H.4 A   
TR1. . . . . . . .  B ADDR   0088H.6 A   


REGISTER BANK(S) USED: 0 


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