[SOLVED] problem in displaying input value from ADC to LCD

#include<REG51.H>

sfr lcd_port = 0xA0;					//LCD connected to p2
sfr ADC_port = 0x90;					//ADC connected to p1
sbit rs=P3^0;							//rs connected to p3.0
sbit rw=P3^6;							//rw connected to p3.6
sbit en=P3^2;						    //en connected to p3.2
sbit rd=P3^3;							//rd connected to p3.2
sbit wr=P3^4;							//wr connected to p3.4
sbit intr=P3^5;							//intr connected to p3.5
sbit busy=P2^7;							//busy flag= p2.7

unsigned int ADC_value, buf;
							

void delay(unsigned int count)			//delay subroutine
{
unsigned int i,j;
for(i=0;i<=count;i++)
	for(j=0;j<=1275;j++);
}

void ready()							//subroutine to check if lcd is busy
{
busy=1;									//make busy pin input
rs=0;									//rs=low
rw=1;									//rw=high
while(busy==1)							//check if busy flag 
	{
	en=0;
	delay(2);
	en=1;
	}
}

void lcd_cmd(unsigned int value)		//sub to write commands 
{
ready();
lcd_port=value;
rs=0;
rw=0;
en=1;
delay(2);
en=0;
}

void lcd_data(unsigned int value)		//sub to write data
{
ready();
lcd_port=value;
rs=1;
rw=0;
en=1;
delay(2);
en=0;
}
	
void lcd_init()							 //lcd initializtion
{
rs=0;									 //rs=output
rw=0;									 //rw=output
en=0;									 //en=output
lcd_port=0x00;							 //lcd_port=port2=output

lcd_cmd(0x38);
lcd_cmd(0x0E);
lcd_cmd(0x01);													 
lcd_cmd(0x06);										  
lcd_cmd(0x80);										   
}

void ADC_init()							 //ADC initialization
{
intr=1;
rd=0;
wr=0;
ADC_port=0xFF;							 //ADC_port=port1=input
wr=0;									 //start of conversion
delay(2);
wr=1;
while(intr==0)		                                        //check for intr flag
	{
	rd=0;
	ADC_value=ADC_port;				   //read digital o/p;A2D value stored in variable ADC_value
	rd=1;
	}
}

void hex2ascii()						//conversion to ASCII for display on LCD
{

unsigned int one, ten, hundred;

buf=ADC_value;

one=buf%10;
ten=buf/10;
ten=ten%10;
hundred=buf/100;

one=one|0x30;
ten=ten|0x30;
hundred=hundred|0x30;  	

lcd_data('m');							//char 'm' sent for testing of LCD
lcd_data(one);							//one's bit sent to LCD
lcd_data(ten);							//ten's bit sent to LCD
lcd_data(hundred);						//hundred's bit sent to LCD

}				
												 
void main()
{
while(1)
	{
	lcd_init();							 //LCD initialization
	ADC_init();							 //ADC initialization
	hex2ascii();						         //HEX 2 ASCII conversion of digital output
	}								 					
}

do{
	rd=0;
	ADC_value=ADC_port;		 //read digital o/p;A2D value stored in variable ADC_value
	rd=1;
	}while(intr==0);			 //check for intr flag
}

void main()
{
   lcd_init();							 //LCD initialization
   while(1)
   {
	ADC_init();							 //ADC initialization
	hex2ascii();						         //HEX 2 ASCII conversion of digital output
   }								 					
}