#include <REGX52.H>

extern void LcdInit();
extern void LcdWelcome();
extern void Lcd_Cursor (char row, char column);
extern void Lcd_DisplayCharacter (char a_char);
extern void Lcd_DisplayString (char row, char column, char *string);
extern void Lcd_WriteControl (unsigned char LcdCommand);

unsigned char data Var1, Var2, Var3;
unsigned char data i = 1;
unsigned char data j = 1;
unsigned char data traj,pomoc,k,r;
unsigned char data czysta = ' ';

volatile unsigned char data Bufor[] = {"Wozniakowski"};

    void button1() interrupt 0
    {
        Lcd_WriteControl(0x01);
        i++;
        if(i == 17)
            {
                i = 1;
                j++;
                if(j == 5) j=1;
            }
						r = i;
						k = j;
        for(traj = 0; traj < 12; traj++)
        {
                pomoc = Bufor[traj];
                Lcd_Cursor(k,r);
                Lcd_DisplayCharacter(pomoc);
                r++;
                if(r == 17)
                {
                    r = 1;
                    k++;
                    if(k == 5) k=1;
                }
            }
        }




    void button2() interrupt 2
{
    Lcd_Cursor(i,j);
        Lcd_DisplayCharacter(czysta);
        j--;
        if(j == 0)
        {
            j = 16;
          i--;
            if( i == 0) i=4;
        }
        Lcd_Cursor(i,j);
        Lcd_DisplayCharacter(traj);
}

void Init(void)
  {
    EX0 = 1;
    IT0 = 1;
        EX1 = 1;
        IT1 = 1;
    EA  = 1;
  }

void main(void)
  {
   LcdInit();         // Zainicjowanie rejestrów wyœwietlacza LCD
   Init();
     Lcd_Cursor(1,1);
//   Lcd_DisplayCharacter(traj);
   while(1) {;}
  }