eeprom 24C64 read problem

#include<8052.h>
#include<stdio.h>


__sbit __at 0x96 scl;
__sbit __at 0x97 sda;

void I2Cinit()
	{
	P1 = 0xc0;	
	}

void aknowledge()	 //acknowledge condition
	{
	sda=0;
	scl=1;
	scl=0;
	sda=1;
	} 
	
void nack()	 	// not acknowledge condition
	{
	sda=1;
	scl=1;
	scl=0;
	scl=1;
	}
	
void start()	 //start condition
	{
	sda=1;
	scl=1;
	sda=0;
	scl=0;
	}
	
void rstart()	 //re-start condition
	{
	scl=0;
	sda=1;
	scl=1;
	sda=0;
	}
	
void stop()	 //stop condition
	{
	scl=0;
	sda=0;
	scl=1;
	sda=1;
	}
	
unsigned char read_byte()	//reading from EEPROM serially
	{
	unsigned int i;
	unsigned char reead=0;
	
	for(i=0;i<8;i++)
		{
		reead=reead<<1;
		scl=0;
		if(sda==1)
			reead++;
		scl=1;
		}
	scl=0;
	sda=1;
	return reead;	 //Returns 8 bit data here
	}
	
void send_byte(unsigned char value)	//send byte serially
	{ 
	unsigned int i;
	unsigned char send;
	send=value;
		
	for(i=0;i<8;i++)
		{
		scl=0;
		sda=send/128;	 //extracting MSB
		send=send<<1;	 //shiftng left
		scl=1;
		}
	scl=0;
	sda=1;
	}
	
void Write(unsigned char ch, int addr)
	{
	start();
	send_byte(0xA0);
	aknowledge();	
	send_byte((unsigned char)(addr>>8));
	aknowledge();
	send_byte((unsigned char)addr);
	aknowledge();	
	send_byte(ch);	//device address
	aknowledge();
	stop();
	}
		
int Read(int addr)
	{
	unsigned char ret;
	start();
	send_byte(0xA0);
	aknowledge();
	send_byte((unsigned char)(addr>>8));  // High addr
	aknowledge();
	send_byte((unsigned char)addr);  // low addr
	aknowledge();
	rstart();
	send_byte(0xA1);	//device read address
	aknowledge();
	ret=read_byte();
	nack();				// stop reading
	stop();
	return ret;
	}
void delayus(int x)
	{
	while(x--);		
	}
void delayms(int x)
	{
	while(x--)
		delayus(97);
	}
	
void main()
	{
	int x,j;
	I2Cinit();
	for(x=0;x<256;x++)
		{
		Write(x,x);
		delayms(5);
		}
	for(x=255;x>0;x--)
		j = Read(x);
		
	}