//void init_port(void);
//void out_data(char);
//void out_control(char);
//void delayy(int);
//void lcd_control_write(void);
//void init_lcd(void);
//void write_data(char);
//void write_string(char *);

void setup() 
{
  // put your setup code here, to run once:
  init_port();
  init_lcd();
  write_string("Welcome");
}

void write_string(char *ptr)
{
  while(*ptr!=0)
  {
    //*ptr = write_data;
    write_data(*ptr);
    ptr++;
  }
}

void init_port()
{
  volatile char *dirf, *dirk;
  //volatile char *outf, *outk;
  dirf = 0x30; dirk = 0x107;
  //outf = 0x31; outk = 0x108;
  *dirf = 0xFF; *dirk = 0x03;
}

void out_data(char out)
{
  //volatile char *outf = (volatile char *)(0x31);
  volatile char *outf;
  outf = 0x31;
  *outf = out;
}

void out_control(char out)
{
  volatile char *outk;
  outk = 0x108;
  *outk = out;
}

void delayy(int x)
{
  volatile long i;
  while(x)
  {
    for(i=0; i<100000; i++);
    x--;
  }
}

void lcd_control_write()
{
  out_control(0x01);
  delayy(1);
  out_control(0x00);
  delayy(1);
}

void init_lcd()
{
  out_data(0x38);
  lcd_control_write();
  out_data(0x0F);
  lcd_control_write();
  out_data(0x01);
  lcd_control_write();
  out_data(0x06);
  lcd_control_write();
}

void write_data(char data)
{
  out_data(data);
  out_control(0x02);
  delayy(1);
  out_control(0x03);
  delayy(1);
  out_control(0x02);
  delayy(1);
}

void loop() {
  // put your main code here, to run repeatedly:

}