?? music.lst
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C51 COMPILER V7.50 MUSIC 07/22/2007 16:13:48 PAGE 1
C51 COMPILER V7.50, COMPILATION OF MODULE MUSIC
OBJECT MODULE PLACED IN Music.OBJ
COMPILER INVOKED BY: C:\Keil\C51\BIN\C51.EXE Music.c BROWSE DEBUG OBJECTEXTEND
line level source
1 #include"REG51F.h"
2 #include"intrins.h"
3 #include"USEH1.h"
4 #include"MainMyMedia.h"
5 #include"Music.h"
6
7 //=========================================================================
8
9 unsigned int code FreTab[12] = { 262,277,294,311,330,349,369,392,415,440,466,494 }; //原始頻率表
10 unsigned char code SignTab[7] = { 0,2,4,5,7,9,11 }; //1~7在頻率表中的位置
11 unsigned char code LengthTab[7]= { 1,2,4,8,16,32,64 };
12 unsigned char Sound_Temp_TH0,Sound_Temp_TL0; //音符定時器初值暫存
13 unsigned char Sound_Temp_TH1,Sound_Temp_TL1; //音長定時器初值暫存
14
15 //函數定義===================================================================
16 void InitialSound(void)
17 {
18 1 BeepIO = 0;
19 1 Sound_Temp_TH1 = (65535-(1/1200)*SYSTEM_OSC)/256; // 計算TL1應裝入的初值 (10ms的初裝值)
20 1 Sound_Temp_TL1 = (65535-(1/1200)*SYSTEM_OSC)%256; // 計算TH1應裝入的初值
21 1 TH1 = Sound_Temp_TH1;
22 1 TL1 = Sound_Temp_TL1;
23 1 TMOD |= 0x11;
24 1 ET0 = 1;
25 1 ET1 = 0;
26 1 TR0 = 0;
27 1 TR1 = 0;
28 1 EA = 1;
29 1 }
30
31 void BeepTimer0(void) interrupt 1 //音符發生中斷
32 {
33 1 BeepIO = !BeepIO;
34 1 TH0 = Sound_Temp_TH0;
35 1 TL0 = Sound_Temp_TL0;
36 1 }
37 //**************************************************************************
38 void Play(unsigned char *Sound,unsigned char Signature,unsigned Octachord,unsigned int Speed)
39 {
40 1 unsigned int NewFreTab[12]; //新的頻率表
41 1 unsigned char i,j;
42 1 unsigned int Point,LDiv,LDiv0,LDiv1,LDiv2,LDiv4,CurrentFre,Temp_T,SoundLength;
43 1 unsigned char Tone,Length,SL,SH,SM,SLen,XG,FD;
44 1 for(i=0;i<12;i++) // 根據調號及升降八度來生成新的頻率表
45 1 {
46 2 j = i + Signature;
47 2 if(j > 11)
48 2 {
49 3 j = j-12;
50 3 NewFreTab[i] = FreTab[j]*2;
51 3 }
52 2 else
53 2 NewFreTab[i] = FreTab[j];
54 2
55 2 if(Octachord == 1)
C51 COMPILER V7.50 MUSIC 07/22/2007 16:13:48 PAGE 2
56 2 NewFreTab[i]>>=2;
57 2 else if(Octachord == 3)
58 2 NewFreTab[i]<<=2;
59 2 }
60 1
61 1 SoundLength = 0;
62 1 while(Sound[SoundLength] != 0x00) //計算歌曲長度
63 1 {
64 2 SoundLength+=2;
65 2 }
66 1
67 1 Point = 0;
68 1 Tone = Sound[Point];
69 1 Length = Sound[Point+1]; // 讀出第一個音符和它時時值
70 1
71 1 LDiv0 = 12000/Speed; // 算出1分音符的長度(幾個10ms)
72 1 LDiv4 = LDiv0/4; // 算出4分音符的長度
73 1 LDiv4 = LDiv4-LDiv4*SOUND_SPACE; // 普通音最長間隔標準
74 1 TR0 = 0;
75 1 TR1 = 1;
76 1 while(Point < SoundLength)
77 1 {
78 2 extern bit gf_have;
79 2 extern uchar g_kVal;
80 2 if(gf_have&&(g_kVal==KESC))
81 2 return;
82 2
83 2 SL=Tone%10; //計算出音符
84 2 SM=Tone/10%10; //計算出高低音
85 2 SH=Tone/100; //計算出是否升半
86 2 CurrentFre = NewFreTab[SignTab[SL-1]+SH]; //查出對應音符的頻率
87 2 if(SL!=0)
88 2 {
89 3 if (SM==1) CurrentFre >>= 2; //低音
90 3 if (SM==3) CurrentFre <<= 2; //高音
91 3 Temp_T = 65536-(50000/CurrentFre)*10/(12000000/SYSTEM_OSC);//計算計數器初值
92 3 Sound_Temp_TH0 = Temp_T/256;
93 3 Sound_Temp_TL0 = Temp_T%256;
94 3 TH0 = Sound_Temp_TH0;
95 3 TL0 = Sound_Temp_TL0 + 12; //加12是對中斷延時的補償
96 3 }
97 2 SLen=LengthTab[Length%10]; //算出是幾分音符
98 2 XG=Length/10%10; //算出音符類型(0普通1連音2頓音)
99 2 FD=Length/100;
100 2 LDiv=LDiv0/SLen; //算出連音音符演奏的長度(多少個10ms)
101 2 if (FD==1)
102 2 LDiv=LDiv+LDiv/2;
103 2 if(XG!=1)
104 2 if(XG==0) //算出普通音符的演奏長度
105 2 if (SLen<=4)
106 2 LDiv1=LDiv-LDiv4;
107 2 else
108 2 LDiv1=LDiv*SOUND_SPACE;
109 2 else
110 2 LDiv1=LDiv/2; //算出頓音的演奏長度
111 2 else
112 2 LDiv1=LDiv;
113 2 if(SL==0) LDiv1=0;
114 2 LDiv2=LDiv-LDiv1; //算出不發音的長度
115 2 if (SL!=0)
116 2 {
117 3 TR0=1;
C51 COMPILER V7.50 MUSIC 07/22/2007 16:13:48 PAGE 3
118 3 for(i=LDiv1;i>0;i--) //發規定長度的音
119 3 {
120 4 while(TF1==0);
121 4 TH1 = Sound_Temp_TH1;
122 4 TL1 = Sound_Temp_TL1;
123 4 TF1=0;
124 4 }
125 3 }
126 2 if(LDiv2!=0)
127 2 {
128 3 TR0=0; BeepIO=0;
129 3 for(i=LDiv2;i>0;i--) //音符間的間隔
130 3 {
131 4 while(TF1==0);
132 4 TH1 = Sound_Temp_TH1;
133 4 TL1 = Sound_Temp_TL1;
134 4 TF1=0;
135 4 }
136 3 }
137 2 Point+=2;
138 2 Tone=Sound[Point];
139 2 Length=Sound[Point+1];
140 2 }
141 1 BeepIO = 0;
142 1 }
MODULE INFORMATION: STATIC OVERLAYABLE
CODE SIZE = 749 ----
CONSTANT SIZE = 38 ----
XDATA SIZE = ---- ----
PDATA SIZE = ---- ----
DATA SIZE = 4 51
IDATA SIZE = ---- ----
BIT SIZE = ---- ----
END OF MODULE INFORMATION.
C51 COMPILATION COMPLETE. 0 WARNING(S), 0 ERROR(S)
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