10 x 5 led matrix using pic18f2550

void showtext(void )
{
// i want to show the word "STOP" only so no input for function

	
	unsigned char x = 0;
	unsigned char y = 0;	
	unsigned char currentCol;
       int tmpCol = 0;
	int tmpRow = 0;

Clear();        // a function which putting all leds off


	
	for (currentCol = 0; currentCol< 10; currentCol++)
	{
		if (tmpCol < 4)
			
{
				// Display a single column 

 if ((MyFontLib[tmpCol][tmpRow] & 0b00000001) != 0) display(x, y);
 
 y++;

 if ((MyFontLib[tmpCol][tmpRow] & 0b00000010) != 0) display(x, y);
 
 y++;

 if ((MyFontLib[tmpCol][tmpRow] & 0b00000100) != 0) display(x, y);
 
 y++;

 if ((MyFontLib[tmpCol][tmpRow] & 0b00001000) != 0) display(x, y);
 
 y++;

 if ((MyFontLib[tmpCol][tmpRow] & 0b00010000) != 0) display(x, y);
 
	y =y- 4;
	x++;
}
		
		tmpRow++;

		if (tmpRow == 4)
		{
			tmpRow = 0;
			tmpCol++;
		}
   }
}

// total 4 columns for each character 
//character taking first 3 columns and one column blank to create space between characters

const unsigned char MyFontLib[][4] = {
0x17,0x15,0x1d,0x00,   //s
0x01,0x1f,0x01,0x00,   //t
0x1f,0x11,0x1f,0x00,   //o
0x1f,0x05,0x07,0x00,  //p

};