#define LCDPORT P2
#define RS P2_0
#define RW P2_1
#define E  P2_2
bit  status=0;
#define lcd_delay 60
void delay(unsigned int j)
{
unsigned int i,k;
for(i=0;i<j;i++)
{
for(k=0;k<100;k++);
}
}
void _lcd_init_write(unsigned char a)
{
RS = 0;
RW = 0;
LCDPORT=a;
E=1;
delay(lcd_delay);
E=0;
}
void lcd_com(unsigned char a){
unsigned char temp;
if(status){
        status=0;
	goto a;
	}
RS=0;
a:
RW=0;
temp=a;
temp&=0xF0;
LCDPORT&=0x0F;
LCDPORT|=temp;
E=1;
delay(lcd_delay);
E=0;
temp=a<<4;
temp&=0xF0;
LCDPORT&=0x0F;
LCDPORT|=temp;
E=1;
delay(lcd_delay);
E=0;
}
void lcd_data(unsigned char a){
status=1;
RS=1;
lcd_com(a);
}
void lcd_init(void){
delay(lcd_delay);
_lcd_init_write(0x30);
delay(lcd_delay);
_lcd_init_write(0x30);
delay(lcd_delay);
_lcd_init_write(0x30);
delay(lcd_delay);
_lcd_init_write(0x20);
delay(lcd_delay);
lcd_com(0x28);
delay(lcd_delay);
lcd_com(4);
delay(lcd_delay);
lcd_com(0x85);
delay(lcd_delay);
lcd_com(6);
delay(lcd_delay);
lcd_com(1);
delay(lcd_delay);
}
void lcd_puts(char *aaa)
{
unsigned int i=0;
for(;aaa[i]!=0;i++)lcd_data(aaa[i]);
}