i change with this:

Code:
    CMCON = 7                       ' PortA = digital I/O    
	ANSEL = %00000011               ' Will set RA0-RA1 as analog and all others as digital 
    TRISA = %00000011  
    ADCON0 = %11000001	            ' Configure and turn on A/D Module
    ADCON1 = %00000000 	            ' Left justified. Six Least Significant bits of ADRESL are read as ‘0’
and work but i want only the positive result and not the negative of command: if (value - P2) >= 1
23 - 25 = -2 (P2=25)
27 - 25 = 2 (P2=25)
the pin PORTA.2 turn on , and for -2 and for 2 , but i want only for 2.
How to make this;