求助，那位大侠刚忙看看小弟程序那地方写的不对

我写的是一个流水灯带24c02存储，断电保存数据的，现在是断电没有保存，当流水灯到第三个灯的时候我复位后按说应该从第三个灯开始往后流水，现在却又从第一个了没有保存，请高手忙吗看看哪里是不是写的不对
#include <reg52.h>
#define uchar unsigned char
#define uint unsigned int
uchar code table[]={0xfe,
0xfd,0xfb,0xf7,0xef,0xdf,
0xbf,0x7f};
uchar bb；
sbit SDA=P2^0;//数据总线定义
sbit SCL=P2^1;//时钟总线定义
void delay()//延时5微妙
{;;}
void delay1ms(uint mao).//延时
{
uint a,b;
for(a=mao;a>0;a--)
for(b=110;b>0;b--);
}
void start()//启动信号
{
SDA=1;
delay();
SCL=1;
delay();
SDA=0;
delay();
}
void stop()//停止信号
{
SDA=0;
delay();
SCL=1;
delay();
SDA=1;
delay();
}
void respons()//回应信号
{
uchar i;
SCL=1;
delay();
while((SDA==1)&&(i<250))i++;
SCL=0;
delay();
}
void write_byte(uchar date)//写一个字节
{
uchar i,temp;
temp=date;
SCL=0;
delay();
SDA=1;
delay();
for(i=0;i<8;i++)
{
temp=temp<<1;
SDA=CY;
SCL=1;
delay();
SCL=0;
delay();
}
SDA=1;
delay();
}
uchar read_byte()//读一个字节
{
uchar i,j,k;
SCL=0;
delay();
SDA=1;
delay();
for(i=0;i<8;i++)
{
j=SDA;
k=(k<<1)|j;
SCL=1;
delay();
SCL=0;
delay();
}
return k;
}
void init()//初始化
{
SDA=1;
delay();
SCL=1;
delay();
}
void display()
{
for(bb=0;bb<8;bb++)
{
delay1ms(500);
P1=table[bb];

}
}
void write_add(uchar address,uchar date)
{
start();
write_byte(0xa0);
respons();
write_byte(address);
respons();
write_byte(date);
respons();
stop();
}
uchar read_add(uchar address)
{
uchar date;
start();
write_byte(0xa0);
respons();
write_byte(address);
respons();
start();
write_byte(0xa1);
respons();
date=read_byte();
stop();
return date;
}
void main()
{
init();
while(1)
{
write_byte(0xa0);
P1=read_add(2);
display();
}

}