📄 ex03.lst
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A51 MACRO ASSEMBLER EX03 08/15/2005 21:23:23 PAGE 1
MACRO ASSEMBLER A51 V7.03
OBJECT MODULE PLACED IN ex03.OBJ
ASSEMBLER INVOKED BY: C:\Keil\C51\BIN\A51.EXE ex03.asm SET(SMALL) DEBUG EP
LOC OBJ LINE SOURCE
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0094 13 SPK bit P1.4
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0000 15 ORG 0000H
0000 020014 16 LJMP START
000B 17 ORG 000BH
000B 0520 18 INC 20H ;中断服务,中断计数器加1
000D 758CD8 19 MOV TH0,#0D8H
0010 758AEF 20 MOV TL0,#0EFH ;12M晶振，形成10毫秒中断
0013 32 21 RETI
22
0014 23 START:
0014 758150 24 MOV SP,#50H
0017 758CD8 25 MOV TH0,#0D8H
001A 758AEF 26 MOV TL0,#0EFH
001D 758901 27 MOV TMOD,#01H
0020 75A882 28 MOV IE,#82H
0023 29 MUSIC0:
0023 00 30 NOP
0024 90007D 31 MOV DPTR,#DAT ;表头地址送DPTR
0027 752000 32 MOV 20H,#00H ;中断计数器清0
002A 75F000 33 MOV B,#00H ;表序号清0
002D 34 MUSIC1:
002D 00 35 NOP
002E E4 36 CLR A
002F 93 37 MOVC A,@A+DPTR ;查表取代码
0030 6033 38 JZ END0 ;是00H,则结束
0032 B4FF03 39 CJNE A,#0FFH,MUSIC5
0035 020054 40 LJMP MUSIC3
0038 41 MUSIC5:
0038 00 42 NOP
0039 FE 43 MOV R6,A
003A A3 44 INC DPTR
003B E5F0 45 MOV A,B
003D 93 46 MOVC A,@A+DPTR ;取节拍代码送R7
003E FF 47 MOV R7,A
003F D28C 48 SETB TR0 ;启动计数
0041 49 MUSIC2:
0041 00 50 NOP
0042 B294 51 CPL SPK
0044 EE 52 MOV A,R6
0045 FB 53 MOV R3,A
0046 120072 54 LCALL DEL
0049 EF 55 MOV A,R7
004A B520F4 56 CJNE A,20H,MUSIC2 ;中断计数器(20H)=R7否?
57 ;不等,则继续循环
004D 752000 58 MOV 20H,#00H ;等于,则取下一代码
A51 MACRO ASSEMBLER EX03 08/15/2005 21:23:23 PAGE 2
0050 A3 59 INC DPTR
60 ; INC B
0051 02002D 61 LJMP MUSIC1
0054 62 MUSIC3:
0054 00 63 NOP
0055 C28C 64 CLR TR0 ;休止100毫秒
0057 7A0D 65 MOV R2,#0DH
0059 66 MUSIC4:
0059 00 67 NOP
005A 7BFF 68 MOV R3,#0FFH
005C 120072 69 LCALL DEL
005F DAF8 70 DJNZ R2,MUSIC4
0061 A3 71 INC DPTR
0062 02002D 72 LJMP MUSIC1
0065 73 END0:
0065 00 74 NOP
0066 7A64 75 MOV R2,#64H ;歌曲结束,延时1秒后继续
0068 76 MUSIC6:
0068 7B00 77 MOV R3,#00H
006A 120072 78 LCALL DEL
006D DAF9 79 DJNZ R2,MUSIC6
006F 020023 80 LJMP MUSIC0
0072 81 DEL:
0072 00 82 NOP
0073 83 DEL3:
0073 7C02 84 MOV R4,#02H
0075 85 DEL4:
0075 00 86 NOP
0076 DCFD 87 DJNZ R4,DEL4
0078 00 88 NOP
0079 DBF8 89 DJNZ R3,DEL3
007B 22 90 RET
007C 00 91 NOP
007D 92 DAT:
007D 26202020 93 db 26h,20h,20h,20h,20h,20h,26h,10h,20h,10h,20h,80h,26h,20h,30h,20h
0081 20202610
0085 20102080
0089 26203020
008D 30203910 94 db 30h,20h,39h,10h,30h,10h,30h,80h,26h,20h,20h,20h,20h,20h,1ch,20h
0091 30103080
0095 26202020
0099 20201C20
009D 20802B20 95 db 20h,80h,2bh,20h,26h,20h,20h,20h,2bh,10h,26h,10h,2bh,80h,26h,20h
00A1 26202020
00A5 2B102610
00A9 2B802620
00AD 30203020 96 db 30h,20h,30h,20h,39h,10h,26h,10h,26h,60h,40h,10h,39h,10h,26h,20h
00B1 39102610
00B5 26604010
00B9 39102620
00BD 30203020 97 db 30h,20h,30h,20h,39h,10h,26h,10h,26h,80h,26h,20h,2bh,10h,2bh,10h
00C1 39102610
00C5 26802620
00C9 2B102B10
00CD 2B203010 98 db 2bh,20h,30h,10h,39h,10h,26h,10h,2bh,10h,2bh,20h,2bh,40h,40h,20h
00D1 39102610
00D5 2B102B20
00D9 2B404020
00DD 20102010 99 db 20h,10h,20h,10h,2bh,10h,26h,30h,30h,80h,18h,20h,18h,20h,26h,20h
00E1 2B102630
00E5 30801820
00E9 18202620
00ED 20202040 100 db 20h,20h,20h,40h,26h,20h,2bh,20h,30h,20h,30h,20h,1ch,20h,20h,20h
00F1 26202B20
00F5 30203020
00F9 1C202020
A51 MACRO ASSEMBLER EX03 08/15/2005 21:23:23 PAGE 3
00FD 20801C20 101 db 20h,80h,1ch,20h,1ch,20h,1ch,20h,30h,20h,30h,60h,39h,10h,30h,10h
0101 1C201C20
0105 30203060
0109 39103010
010D 20202B10 102 db 20h,20h,2bh,10h,26h,10h,2bh,10h,26h,10h,26h,10h,2bh,10h,2bh,80h
0111 26102B10
0115 26102610
0119 2B102B80
011D 18201820 103 db 18h,20h,18h,20h,26h,20h,20h,20h,20h,60h,26h,10h,2bh,20h,30h,20h
0121 26202020
0125 20602610
0129 2B203020
012D 30201C20 104 db 30h,20h,1ch,20h,20h,20h,20h,80h,26h,20h,30h,10h,30h,10h,30h,20h
0131 20202080
0135 26203010
0139 30103020
013D 39202610 105 db 39h,20h,26h,10h,2bh,10h,2bh,20h,2bh,40h,40h,10h,40h,10h,20h,10h
0141 2B102B20
0145 2B404010
0149 40102010
014D 20102B10 106 db 20h,10h,2bh,10h,26h,30h,30h,80h,00H
0151 26303080
0155 00
107
108 END
A51 MACRO ASSEMBLER EX03 08/15/2005 21:23:23 PAGE 4
SYMBOL TABLE LISTING
------ ----- -------
N A M E T Y P E V A L U E ATTRIBUTES
B. . . . . . . . . D ADDR 00F0H A
DAT. . . . . . . . C ADDR 007DH A
DEL. . . . . . . . C ADDR 0072H A
DEL3 . . . . . . . C ADDR 0073H A
DEL4 . . . . . . . C ADDR 0075H A
END0 . . . . . . . C ADDR 0065H A
IE . . . . . . . . D ADDR 00A8H A
MUSIC0 . . . . . . C ADDR 0023H A
MUSIC1 . . . . . . C ADDR 002DH A
MUSIC2 . . . . . . C ADDR 0041H A
MUSIC3 . . . . . . C ADDR 0054H A
MUSIC4 . . . . . . C ADDR 0059H A
MUSIC5 . . . . . . C ADDR 0038H A
MUSIC6 . . . . . . C ADDR 0068H A
P1 . . . . . . . . D ADDR 0090H A
SP . . . . . . . . D ADDR 0081H A
SPK. . . . . . . . B ADDR 0090H.4 A
START. . . . . . . C ADDR 0014H A
TH0. . . . . . . . D ADDR 008CH A
TL0. . . . . . . . D ADDR 008AH A
TMOD . . . . . . . D ADDR 0089H A
TR0. . . . . . . . B ADDR 0088H.4 A
REGISTER BANK(S) USED: 0
ASSEMBLY COMPLETE. 0 WARNING(S), 0 ERROR(S)
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