A51 MACRO ASSEMBLER  911                                                                  05/28/2005 21:14:27 PAGE     1


MACRO ASSEMBLER A51 V6.12
OBJECT MODULE PLACED IN .\911.OBJ
ASSEMBLER INVOKED BY: C:\Keil\C51\BIN\A51.EXE .\911.asm SET(SMALL) DEBUG EP

LOC  OBJ            LINE     SOURCE

                       1     CODE_SEG        SEGMENT CODE 
                       2     DATA_SEG        SEGMENT DATA
                       3     STACK_SEG       SEGMENT IDATA
                       4     
  00B7                 5     SPK     BIT     P3.7
                       6     
----                   7             RSEG    DATA_SEG
0000                   8     FRQ:   DS   1
0001                   9     TMP:   DS   1
                      10     
----                  11             RSEG    STACK_SEG
0000                  12     STACK:  DS      20
                      13     
                      14     ;===============================================================================
----                  15     CSEG    AT      00000H
0000 020000   F       16             LJMP    MAIN
                      17     
                      18     
----                  19     CSEG    AT      0000BH
000B 020000   F       20             LJMP    TIMER0
                      21             
                      22             
                      23             
                      24     ;===============================================================================
                      25     
----                  26             RSEG    CODE_SEG
0000                  27     MAIN:
                      28             USING   0
                      29             
0000 758100   F       30             MOV     SP,#(STACK-1)
                      31             
0003 758901           32             MOV     TMOD,#01H
0006 E4               33             CLR     A
0007 F500     F       34             MOV     FRQ,A
0009 F58C             35             MOV     TH0,A
000B 758AFF           36             MOV     TL0,#0FFH
000E D28C             37             SETB    TR0
0010 75A882           38             MOV     IE,#082H
                      39             
0013                  40     MAIN_LP:
                      41     
0013 0500     F       42             INC     FRQ
                      43             
0015 7F04             44             MOV     R7,#04          ; 
0017 120000   F       45             LCALL   DELAYMS
                      46     
001A 80F7             47             SJMP    MAIN_LP
                      48             
                      49     ; END OF main
                      50     
                      51     ;===============================================================================
                      52     
                      53     
001C                  54     TIMER0:
001C 758CFE           55             MOV     TH0,#0FEH
001F 85008A   F       56             MOV     TL0,frq
0022 B2B7             57             CPL     SPK
0024 32               58             RETI    
A51 MACRO ASSEMBLER  911                                                                  05/28/2005 21:14:27 PAGE     2

                      59     ; END OF TIMER0
                      60     
                      61     
                      62     ;===============================================================================
0025                  63     DELAYMS:
                      64     ; 延時子程序
                      65     ; 傳入參剩篟7 --- 延時值(MS) 
                      66     ; 返回值：無
                      67     
0025 EF               68             MOV     A,R7
0026 6009             69             JZ      END_DLYMS       
0028                  70     DLY_LP1:
0028 7EB9             71             MOV     R6,#185
002A                  72     DLY_LP2:
002A 00               73             NOP
002B 00               74             NOP
002C 00               75             NOP
002D DEFB             76             DJNZ    R6,DLY_LP2
002F DFF7             77             DJNZ    R7,DLY_LP1
                      78     
0031                  79     END_DLYMS:
0031 22               80             RET 
                      81     
                      82             END
A51 MACRO ASSEMBLER  911                                                                  05/28/2005 21:14:27 PAGE     3

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


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

CODE_SEG . . . . .  C SEG    0032H       REL=UNIT
DATA_SEG . . . . .  D SEG    0002H       REL=UNIT
DELAYMS. . . . . .  C ADDR   0025H   R   SEG=CODE_SEG
DLY_LP1. . . . . .  C ADDR   0028H   R   SEG=CODE_SEG
DLY_LP2. . . . . .  C ADDR   002AH   R   SEG=CODE_SEG
END_DLYMS. . . . .  C ADDR   0031H   R   SEG=CODE_SEG
FRQ. . . . . . . .  D ADDR   0000H   R   SEG=DATA_SEG
IE . . . . . . . .  D ADDR   00A8H   A   
MAIN . . . . . . .  C ADDR   0000H   R   SEG=CODE_SEG
MAIN_LP. . . . . .  C ADDR   0013H   R   SEG=CODE_SEG
P3 . . . . . . . .  D ADDR   00B0H   A   
SP . . . . . . . .  D ADDR   0081H   A   
SPK. . . . . . . .  B ADDR   00B0H.7 A   
STACK. . . . . . .  I ADDR   0000H   R   SEG=STACK_SEG
STACK_SEG. . . . .  I SEG    0014H       REL=UNIT
TH0. . . . . . . .  D ADDR   008CH   A   
TIMER0 . . . . . .  C ADDR   001CH   R   SEG=CODE_SEG
TL0. . . . . . . .  D ADDR   008AH   A   
TMOD . . . . . . .  D ADDR   0089H   A   
TMP. . . . . . . .  D ADDR   0001H   R   SEG=DATA_SEG
TR0. . . . . . . .  B ADDR   0088H.4 A   


REGISTER BANK(S) USED: 0 

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