math.lst

0-30v

C51 COMPILER V8.08   MATH                                                                  10/01/2008 23:53:31 PAGE 1   


C51 COMPILER V8.08, COMPILATION OF MODULE MATH
OBJECT MODULE PLACED IN math.OBJ
COMPILER INVOKED BY: C:\Keil\C51\BIN\C51.EXE math.C BROWSE DEBUG OBJECTEXTEND

line level    source

   1          #include "reg52.h"
   2          #include "math.h"
   3          #define  uchar unsigned char
   4          #define uint unsigned int
   5          
   6          void draw(uchar x,uchar y);//画点函数   
   7          void clear_xy(uchar x,uchar y);//清点函数  
   8          
   9          /*画正弦波函数 */     
  10          void sin_lcd(void)
  11          {
  12   1          float x,y;
  13   1          for(x=0;x<128;x+=0.15)
  14   1          {
  15   2              draw(x,y=20*sin(x*1/4)+32);
  16   2          }
  17   1          for(x=0;x<128;x+=0.15)
  18   1          {
  19   2              clear_xy(x,y=20*sin(x*1/4)+32);
  20   2          }
  21   1      }
  22          /*画圆函数 */
  23          void round(uchar x,uchar y,uchar r)
  24          {
  25   1          float angle;
  26   1          uchar dx,dy;
  27   1          for(angle=0;angle<3.14/4;angle+=0.03)//0.03
  28   1          {
  29   2              dx=r*sin(angle);
  30   2              dy=r*cos(angle);
  31   2              draw(x+dx,y+dy);
  32   2              draw(x-dx,y+dy);
  33   2              draw(x+dx,y-dy);
  34   2              draw(x-dx,y-dy);
  35   2              draw(x+dy,y+dx);
  36   2              draw(x-dy,y+dx);
  37   2              draw(x+dy,y-dx);
  38   2              draw(x-dy,y-dx);
  39   2          }
  40   1      }
  41          /*画椭圆函数 */
  42          void ellipsoid(uchar x,uchar y,uchar a,uchar b)
  43          {
  44   1          float angle;
  45   1          uchar dx,dy;
  46   1          for(angle=0;angle<6.28;angle+=0.06)
  47   1          {
  48   2              dx=a*sin(angle);
  49   2              dy=b*cos(angle);
  50   2              draw(x+dx,y+dy);
  51   2              draw(x+dx,y-dy);
  52   2              draw(x-dx,y-dy);
  53   2              draw(x-dx,y+dy);
  54   2          }
  55   1      }
C51 COMPILER V8.08   MATH                                                                  10/01/2008 23:53:31 PAGE 2   

  56          /*抛物线 */
  57          void parabalo(float x)
  58          {
  59   1          for(;x<128;x+=0.4)
  60   1          draw(x,x*x/256);
  61   1      }
  62          /*对数 */
  63          void fan(float x)
  64          {
  65   1          for(;x<128;x+=0.2)
  66   1          draw(x,30*log10(x));
  67   1      }
  68          /**/
  69          void nn(uchar x,uchar y,uchar R)
  70          {
  71   1          float angle,x0,y0,r1=15,r2=5;
  72   1          for(angle=0;angle<2*3.14*3;angle+=0.03)
  73   1          {
  74   2              x0=(R-r1)*sin(angle)-r2*sin(R/r1*angle);
  75   2              y0=(R-r1)*cos(angle)+r2*cos(R/r1*angle);
  76   2              draw(x+x0,y+y0);
  77   2          }
  78   1      }
  79          /*
  80          void beenline(float x,float y,float xe,float ye)
  81          {
  82              float dx,k;
  83              k=(ye-y)/(xe-x);
  84              dx=(xe-x)/128;
  85              for(;x<=xe;x+=dx)
  86              {
  87                  draw(x,k*x+y);
  88              }
  89          }
  90          */
  91          void  Lin(uchar x1,uchar y1,uchar x2,uchar y2)
  92          {
  93   1          uint x=x1<<8,y=y1<<8;     //高8位为坐标值，低8位为积分累加器
  94   1          char dx=x2-x1,dy=y2-y1,mm,nn;
  95   1      
  96   1          while( abs(dx)<64 && abs(dy)<64 && dx*dy!=0 ) {dx*=6;dy*=6;} //调整插补速度  //2
  97   1      
  98   1          while( (x>>8)!=x2 || (y>>8)!=y2)
  99   1          {
 100   2              draw(mm=x>>8,nn=y>>8);
 101   2              x+=dx;
 102   2              y+=dy;
 103   2          }
 104   1      
 105   1          draw(x>>8,y>>8);         //画终点
 106   1      }


MODULE INFORMATION:   STATIC OVERLAYABLE
   CODE SIZE        =   1493    ----
   CONSTANT SIZE    =   ----    ----
   XDATA SIZE       =   ----    ----
   PDATA SIZE       =   ----    ----
   DATA SIZE        =   ----      70
   IDATA SIZE       =   ----    ----
   BIT SIZE         =   ----    ----
END OF MODULE INFORMATION.

C51 COMPILER V8.08   MATH                                                                  10/01/2008 23:53:31 PAGE 3   


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