unsigned int scanfu(unsigned char idata mode,unsigned char dx,unsigned char dy);

void lcdclear(unsigned char idata mode,float idata pstart,float idata pend,unsigned char idata setcls);
void displaychar(unsigned char *text,unsigned char idata col,unsigned char idata row);
void displayint(unsigned int idata disp,unsigned char idata col,unsigned char idata row);
void displayfloat(float idata disp,unsigned char idata col,unsigned char idata row);

void displaywavel(unsigned char wave[],unsigned char idata num,unsigned char idata start);
void displaywaved(unsigned char wave[],unsigned char idata num,unsigned char idata start);
void line(unsigned char idata x1,unsigned char idata y1,unsigned char idata x2,unsigned char idata y2,unsigned char idata mode);
void box(unsigned char idata x1,unsigned char idata y1,unsigned char idata x2,unsigned char idata y2);
void lineh(unsigned char idata x1,unsigned char idata x2,unsigned char idata y,unsigned char sc);
void linev(unsigned char idata x,unsigned char idata  y1,unsigned char idata y2,unsigned char sc);
void popup(unsigned char x1,unsigned char y1,unsigned char x2,unsigned char y2);
void initlcd();
void select(unsigned char idata x1,unsigned char idata y1,unsigned char idata x2,unsigned char idata y2,unsigned char setclr);