static unsigned short* lcd = (unsigned short*)0xf00100;

static void lcd_wait(void){	
	while(lcd[1] & (1 << 7));
}

static void lcd_cmd(unsigned char cmd){
	lcd[0] = cmd;
	lcd_wait();
}

static void lcd_data(unsigned char c){
	lcd[1] = c;
	lcd_wait();
}

static void lcd_print(const char* str){
	int i;

	for(i = 0; str[i] != 0; i++) lcd_data(str[i]);
}

#define LCD_DISPLAY (1 << 3)
#define LCD_DISPLAY_ON (1 << 2)

#define LCD_FUNCTION (1 << 5)
#define LCD_FUNCTION_8_BITS (1 << 4)
#define LCD_FUNCTION_2_LINES (1 << 3)

int main(void){
	lcd_cmd(LCD_FUNCTION | LCD_FUNCTION_8_BITS | LCD_FUNCTION_2_LINES);
	lcd_cmd(LCD_DISPLAY | LCD_DISPLAY_ON);

	lcd_print("Hello, world!");
}

void tick(void){
}