📄 wl002.lst
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A51 MACRO ASSEMBLER WL002 03/29/2005 15:39:49 PAGE 1
MACRO ASSEMBLER A51 V7.10
OBJECT MODULE PLACED IN wl002.OBJ
ASSEMBLER INVOKED BY: C:\Keil\C51\BIN\A51.EXE wl002.asm SET(SMALL) DEBUG EP
LOC OBJ LINE SOURCE
1 ;********************************************************************************
2 ;* 标题: 伟纳电子ME300系列单片机开发系统演示程序 - 报警声程序 *
3 ;* 文件: wl002.asm *
4 ;* 日期: 2004-1-5 *
5 ;* 版本: 1.0 *
6 ;* 作者: 伟纳电子 - Freeman *
7 ;* 邮箱: freeman@willar.com *
8 ;* 网站： http://www.willar.com *
9 ;********************************************************************************
10 ;* 描述: *
11 ;* 单片机模拟报警声 *
12 ;* *
13 ;* *
14 ;* *
15 ;********************************************************************************
16 ;* 【版权】 Copyright(C)伟纳电子 www.willar.com All Rights Reserved *
17 ;* 【声明】 此程序仅用于学习与参考，引用请注明版权和作者信息！ *
18 ;********************************************************************************
19
20 CODE_SEG SEGMENT CODE
21 DATA_SEG SEGMENT DATA
22 STACK_SEG SEGMENT IDATA
23
00B7 24 SPK BIT P3.7
25
---- 26 RSEG DATA_SEG
0000 27 FRQ: DS 1
0001 28 TMP: DS 1
29
---- 30 RSEG STACK_SEG
0000 31 STACK: DS 20
32
33 ;===============================================================================
---- 34 CSEG AT 00000H
0000 020000 F 35 LJMP MAIN
36
37
---- 38 CSEG AT 0000BH
000B 020000 F 39 LJMP TIMER0
40
41
42
43 ;===============================================================================
44
---- 45 RSEG CODE_SEG
0000 46 MAIN:
47 USING 0
48
0000 758100 F 49 MOV SP,#(STACK-1)
50
0003 758901 51 MOV TMOD,#01H
0006 E4 52 CLR A
0007 F500 F 53 MOV FRQ,A
0009 F58C 54 MOV TH0,A
000B 758AFF 55 MOV TL0,#0FFH
000E D28C 56 SETB TR0
0010 75A882 57 MOV IE,#082H
58
A51 MACRO ASSEMBLER WL002 03/29/2005 15:39:49 PAGE 2
0013 59 MAIN_LP:
60
0013 0500 F 61 INC FRQ
62
0015 7F04 63 MOV R7,#04 ;
0017 120000 F 64 LCALL DELAYMS
65
001A 80F7 66 SJMP MAIN_LP
67
68 ; END OF main
69
70 ;===============================================================================
71
72
001C 73 TIMER0:
001C 758CFE 74 MOV TH0,#0FEH
001F 85008A F 75 MOV TL0,frq
0022 B2B7 76 CPL SPK
0024 32 77 RETI
78 ; END OF TIMER0
79
80
81 ;===============================================================================
0025 82 DELAYMS:
83 ; 延时子程序
84 ; 传入参数：R7 --- 延时值(MS)
85 ; 返回值：无
86
0025 EF 87 MOV A,R7
0026 6009 88 JZ END_DLYMS
0028 89 DLY_LP1:
0028 7EB9 90 MOV R6,#185
002A 91 DLY_LP2:
002A 00 92 NOP
002B 00 93 NOP
002C 00 94 NOP
002D DEFB 95 DJNZ R6,DLY_LP2
002F DFF7 96 DJNZ R7,DLY_LP1
97
0031 98 END_DLYMS:
0031 22 99 RET
100
101 END
A51 MACRO ASSEMBLER WL002 03/29/2005 15:39:49 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)
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