Need Assistacne---------- LCD Display coding in 8051C

Hi all,

I have written the LCD Display coding in 8051C, Kindly Check and tell me whats error in this program

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#include<reg52.h>
#include<intrins.h>
sbit rs=P3^5;
sbit rw=P3^6;
sbit en=P3^7;
sbit busy=P1^7;
unsigned char *L1="Dinesh";
unsigned char *L2="Babu";
void lcd_inz(void);
void address_write(unsigned char);
void data_write(unsigned char);
void delay(unsigned int);
void string_write(char*);
void check();
void main()
{
lcd_inz();
delay(10);
while(1)
{
address_write(0x80);
string_write(L1);
delay(10);
address_write(0xc0);
string_write(L2);
delay(10);
}
}
void delay(unsigned int i)
{
int k;
for(k=0;k<i;k++)
{
_nop_();
}
}
void lcd_inz()
{
address_write(0x01);
address_write(0xc0);
address_write(0xc0);
address_write(0x80);
address_write(0x38);
address_write(0xe0);
}
void address_write(unsigned char x)
{
P1=x;
rs=0;
rw=0;
en=1;
delay(10);
en=0;
check();
}
void check()
{
busy=1;
en=1;
rs=0;
rw=1;
while(busy==1)
{
en=0;
delay(10);
en=1;
}
}
void string_write(unsigned char *v)
{
while(*v!='\0');
{
data_write(*v);
v++;
}
}
void data_write(unsigned char y)
{
P1=y;
rs=1;
rw=0;
en=1;
delay(10);
en=0;
check();
}



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thanks In advance

Regards,

Dinesh