up51s002.lst

此代码为警报声程序

A51 MACRO ASSEMBLER  UP51S002                                                             12/12/2004 20:48:06 PAGE     1


MACRO ASSEMBLER A51 V7.08a
OBJECT MODULE PLACED IN up51s002.OBJ
ASSEMBLER INVOKED BY: C:\KEIL\C51\BIN\A51.EXE up51s002.asm SET(SMALL) DEBUG EP

LOC  OBJ            LINE     SOURCE

                       1     ;*******************************************************************************
                       2     ;*                                                                              *
                       3     ;*    File       : uP51s002.asm                                                 *
                       4     ;*    Date       : 2004-9-5                                                     *
                       5     ;*    Version    : 1.0                                                          *
                       6     ;*                                                                              *
                       7     ;*    Author     : kevin           [e-mail]                               *
                       8     ;*    Company    : Http://www.dz51.com                                          *
                       9     ;*                                                                              *
                      10     ;********************************************************************************
                      11     ;*    Descriptoon:                                                              *
                      12     ;*                报警声程序                                                    *
                      13     ;*                                                                              *
                      14     ;*                                                                              *
                      15     ;*                                                                              *
                      16     ;*                                                                              *
                      17     ;*                                                                              *
                      18     ;********************************************************************************
                      19     CODE_SEG        SEGMENT CODE 
                      20     DATA_SEG        SEGMENT DATA
                      21     STACK_SEG       SEGMENT IDATA
                      22     
  00B7                23     SPK     BIT     P3.7
                      24     
----                  25             RSEG    DATA_SEG
0000                  26     FRQ:   DS   1
0001                  27     TMP:   DS   1
                      28     
----                  29             RSEG    STACK_SEG
0000                  30     STACK:  DS      20
                      31     
                      32     ;===============================================================================
----                  33     CSEG    AT      00000H
0000 020000   F       34             LJMP    MAIN
                      35     
                      36     
----                  37     CSEG    AT      0000BH
000B 020000   F       38             LJMP    TIMER0
                      39             
                      40             
                      41             
                      42     ;===============================================================================
                      43     
----                  44             RSEG    CODE_SEG
0000                  45     MAIN:
                      46             USING   0
                      47             
0000 758100   F       48             MOV     SP,#(STACK-1)
                      49             
0003 758901           50             MOV     TMOD,#01H
0006 E4               51             CLR     A
0007 F500     F       52             MOV     FRQ,A
0009 F58C             53             MOV     TH0,A
000B 758AFF           54             MOV     TL0,#0FFH
000E D28C             55             SETB    TR0
0010 75A882           56             MOV     IE,#082H
                      57             
0013                  58     MAIN_LP:
A51 MACRO ASSEMBLER  UP51S002                                                             12/12/2004 20:48:06 PAGE     2

                      59     
0013 0500     F       60             INC     FRQ
                      61             
0015 7F04             62             MOV     R7,#04          ; 
0017 120000   F       63             LCALL   DELAYMS
                      64     
001A 80F7             65             SJMP    MAIN_LP
                      66             
                      67     ; END OF main
                      68     
                      69     ;===============================================================================
                      70     
                      71     
001C                  72     TIMER0:
001C 758CFE           73             MOV     TH0,#0FEH
001F 85008A   F       74             MOV     TL0,frq
0022 B2B7             75             CPL     SPK
0024 32               76             RETI    
                      77     ; END OF TIMER0
                      78     
                      79     
                      80     ;===============================================================================
0025                  81     DELAYMS:
                      82     ; 延时子程序
                      83     ; 传入参数：R7 --- 延时值(MS) 
                      84     ; 返回值：无
                      85     
0025 EF               86             MOV     A,R7
0026 6009             87             JZ      END_DLYMS       
0028                  88     DLY_LP1:
0028 7EB9             89             MOV     R6,#185
002A                  90     DLY_LP2:
002A 00               91             NOP
002B 00               92             NOP
002C 00               93             NOP
002D DEFB             94             DJNZ    R6,DLY_LP2
002F DFF7             95             DJNZ    R7,DLY_LP1
                      96     
0031                  97     END_DLYMS:
0031 22               98             RET 
                      99     
                     100             END
A51 MACRO ASSEMBLER  UP51S002                                                             12/12/2004 20:48:06 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)