music.lst

基于MCU51

C51 COMPILER V7.01  MUSIC                                                                  05/16/2007 09:45:00 PAGE 1   


C51 COMPILER V7.01, COMPILATION OF MODULE MUSIC
OBJECT MODULE PLACED IN Music.OBJ
COMPILER INVOKED BY: D:\单片机学习资料\KEIL安装软件\C51\BIN\C51.EXE Music.c BROWSE DEBUG OBJECTEXTEND

stmt level    source

   1          #include<reg52.h>
   2          #define uint unsigned int
   3          #define uchar unsigned char
   4          
   5          sbit BEEP=P0^0;
   6          
   7          uchar th0_f,tl0_f;
   8          uchar data diaodata[30]; //音调缓冲
   9          uchar data jiedata[30];  //音长缓冲
  10          //T0的值,及输出频率对照表
  11          uchar code freq[36*2]={
  12                  0xA9,0xEF,//00220HZ ,1   //0
  13                  0x93,0xF0,//00233HZ ,1#
  14                  0x73,0xF1,//00247HZ ,2
  15                  0x49,0xF2,//00262HZ ,2#
  16                  0x07,0xF3,//00277HZ ,3
  17                  0xC8,0xF3,//00294HZ ,4
  18                  0x73,0xF4,//00311HZ ,4#
  19                  0x1E,0xF5,//00330HZ ,5 
  20                  0xB6,0xF5,//00349HZ ,5#
  21                  0x4C,0xF6,//00370HZ ,6
  22                  0xD7,0xF6,//00392HZ ,6#
  23                  0x5A,0xF7,//00415HZ ,7    
  24                  0xD8,0xF7,//00440HZ 1     //12
  25                  0x4D,0xF8,//00466HZ 1#    //13
  26                  0xBD,0xF8,//00494HZ 2     //14
  27                  0x24,0xF9,//00523HZ 2#    //15
  28                  0x87,0xF9,//00554HZ 3     //16
  29                  0xE4,0xF9,//00587HZ 4     //17
  30                  0x3D,0xFA,//00622HZ 4#    //18
  31                  0x90,0xFA,//00659HZ 5     //19
  32                  0xDE,0xFA,//00698HZ 5#    //20
  33                  0x29,0xFB,//00740HZ 6     //21
  34                  0x6F,0xFB,//00784HZ 6#    //22
  35                  0xB1,0xFB,//00831HZ 7     //23
  36                  0xEF,0xFB,//00880HZ `1
  37                  0x2A,0xFC,//00932HZ `1#
  38                  0x62,0xFC,//00988HZ `2
  39                  0x95,0xFC,//01046HZ `2#
  40                  0xC7,0xFC,//01109HZ `3
  41                  0xF6,0xFC,//01175HZ `4
  42                  0x22,0xFD,//01244HZ  `4#
  43                  0x4B,0xFD,//01318HZ `5
  44                  0x73,0xFD,//01397HZ `5#
  45                  0x98,0xFD,//01480HZ `6
  46                  0xBB,0xFD,//01568HZ `6#
  47                  0xDC,0xFD,//01661HZ `7     //35
  48          };
  49          
  50          //=============================
  51          void timer1() interrupt 3 using 3 //用于产生唱歌频率
  52          {
  53   1          TL1=tl0_f;TH1=th0_f;  //调入预定时值
  54   1          BEEP=~BEEP;           //取反音乐输出I/O
  55   1      }
C51 COMPILER V7.01  MUSIC                                                                  05/16/2007 09:45:00 PAGE 2   

  56          
  57          //******************************
  58          //音乐符号串解释函数
  59          //入口:要解释的音乐符号串,输出的音调串,输出的时长串
  60          void changedata(uchar *song,uchar *diao,uchar *jie)
  61          {
  62   1          uchar i,i1,j;
  63   1          char gaodi; //高低+/-12音阶
  64   1          uchar banyin;//有没有半个升音阶
  65   1          uchar yinchang;//音长
  66   1          uchar code jie7[8]={0,12,14,16,17,19,21,23}; //C调的7个值
  67   1      
  68   1          *diao=*song;
  69   1          for(i=0,i1=0;;)
  70   1          {
  71   2              gaodi=0; //高低=0
  72   2              banyin=0;//半音=0
  73   2              yinchang=4;//音长1拍
  74   2              if((*(song+i)=='|') || (*(song+i)==' ')) i++; 
  75   2                      //拍子间隔和一个空格过滤
  76   2      
  77   2              switch(*(song+i)) 
  78   2              {    
  79   3                  case ',': gaodi=-12;i++;//低音
  80   3                  break;
  81   3          
  82   3                  case '`': gaodi=12;i++; //高音
  83   3                  break;
  84   3              }
  85   2      
  86   2              if(*(song+i)==0)  //遇到0结束
  87   2              {
  88   3                  *(diao+i1)=0; //加入结束标志0
  89   3                  *(jie+i1)=0;
  90   3                  return;
  91   3              }
  92   2      
  93   2              j=*(song+i)-0x30; i++; //取出基准音
  94   2              j=jie7[j]+gaodi; //加上高低音
  95   2                                                      
  96   2      
  97   2      yinc:   switch(*(song+i)) 
  98   2              {    
  99   3                  case '#': //有半音j加一个音阶 
 100   3                      i++;j++;
 101   3                                      goto yinc; 
 102   3                  
 103   3      
 104   3                  case '-': //有一个音节加长
 105   3                      yinchang+=4;
 106   3                      i++; 
 107   3                      goto yinc;
 108   3      
 109   3                  case '_': //有一个音节缩短
 110   3                      yinchang/=2;
 111   3                      i++; 
 112   3                                      goto yinc;
 113   3                  
 114   3                  
 115   3                  case '.': //有一个加半拍
 116   3                      yinchang=yinchang+yinchang/2;
 117   3                                      i++;
C51 COMPILER V7.01  MUSIC                                                                  05/16/2007 09:45:00 PAGE 3   

 118   3                                      goto yinc;
 119   3                  
 120   3              }
 121   2      
 122   2              *(diao+i1)=j;       //记录音符
 123   2              *(jie+i1)=yinchang; //记录音长
 124   2              i1++;    
 125   2      
 126   2          }
 127   1      }
 128          
 129          //******************************************
 130          //奏乐函数
 131          //入口:要演奏的音乐符号串
 132          void play(uchar *songdata)
 133          {
 134   1          uchar i,c,j=0;
 135   1          uint  n;
 136   1          
 137   1          changedata(songdata,diaodata,jiedata); //解释音乐符号串
 138   1          for(i=0;diaodata[i]!=0;i++)  //逐个符号演奏
 139   1          {
 140   2              tl0_f=freq[diaodata[i]*2]; //取出对应的定时值送给T0
 141   2              th0_f=freq[diaodata[i]*2+1];
 142   2              TR1=1;      
 143   2              for(c=0;c<jiedata[i];c++) //按照音长延时
 144   2                      {
 145   3                    for(n=0;n<25000;n++);
 146   3                    
 147   3                      }
 148   2              TR1=0;
 149   2              for(n=0;n<500;n++);    //音符间延时
 150   2          }
 151   1          TR1=0;
 152   1      }


MODULE INFORMATION:   STATIC OVERLAYABLE
   CODE SIZE        =    373    ----
   CONSTANT SIZE    =     80    ----
   XDATA SIZE       =   ----    ----
   PDATA SIZE       =   ----    ----
   DATA SIZE        =     62      15
   IDATA SIZE       =   ----    ----
   BIT SIZE         =   ----    ----
END OF MODULE INFORMATION.


C51 COMPILATION COMPLETE.  0 WARNING(S),  0 ERROR(S)