AT24C16/AT24C08/AT24Cxx EEPROM write and read analog sensor values

i want store lm35 temperature sensor values in at24c16 eeprom.
but can store 0-255 values lm35.
i want store 0-1023 values lm35.

my code work for   28 celsius.

#include <wire.h>
#include <liquidcrystal.h>
int data=0;
byte high=0x00 , low=0x00;
int val;
float temperature;
int getval;

liquidcrystal lcd(12, 11, 5, 4, 3, 2);

void setup()
{
   wire.begin();
   lcd.begin(16,2);
   analogreference(internal1v1); 
}
 
void loop()
{
    val=analogread(0);
    temperature=val/9.31;
    wire.begintransmission(b01010000);
    wire.write(high);
    wire.write(low);
    wire.write(val);
    wire.endtransmission();
    delay(10);
   
    wire.begintransmission(b01010000);
    wire.write(high);
    wire.write(low);
    wire.endtransmission();
    wire.requestfrom(b01010000,1);
    delay(10);
   
    getval=int(wire.read());
    lcd.clear();
    lcd.print(getval/9.31);
    lcd.print(" ");
    lcd.print(int(high));
    lcd.print(" ");
    lcd.print(int(low));
    lcd.setcursor(0,1);
    lcd.print(temperature);
    lcd.print("  ");
    lcd.print(val);
    lcd.print(" ");
    lcd.print(getval);
   
    data++;
    if (data > 255){
      data=0;
    }
    if (low==255){
      high++;
    }
    low++;
 
 
}

quote

but can store 0-255 values lm35.

do have idea why?

quote

i want store 0-1023 values lm35.

highbyte() , lowbyte() come mind.

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