Need help with the algorithm of the code

[ADGAN]

Hi! I need some help with the algorithm of my code. I want to read a meter reading from the EEPROM and add it up to the monthly consumption. After that I want to add the timer1 value to it when it increments to the meter reading. This is how I have done it.

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Code C - [expand]
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temp = EEPROMReadInt(0x00);
 
       pulses = (count*65535)+ (TMR1H<<8 | TMR1L);
       Monthly_consumption = temp+ pulses;
       
      while(1){
 
      pulses = (count*65535)+ (TMR1H<<8 | TMR1L);
      Monthly_consumption = Monthly_consumption + pulses;
      }

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But suppose temp = 10, at the beginning pulses = 1, then Monthly consumption is 11. In the while loop if pulses 3, then Monthly consumption is 14. But my problem is when I add pulse 3 it contains the 1st pulse also. So I'm counting the same pulse again & again. How do I solve this?