This is the piece of code that i wrote to extract the above mentioned hexadecimal values and now i want to subtract the $valu2 with $value1 and print it in the same output file F2. I am not sure how to subtract these 2 values and print the result in hexadecimal and also in integer 

#!usr/bin/perl

open (FILE1, "<file_hex.txt") or die "can't read the file";
open (FILE2, ">output_log.txt") or die "cant write into the file";

while (<FILE1>) {
        if($_ =~ (/(^\=\>\s+)(0x[0-9a-f]+){1,10}(.*)/)) {
        $value1= $2;    
        print FILE2 $value1."=inst1 \n";
    }
    elsif($_ =~ (/(^\s+)(0x[0-9a-f]+){1,10}(.*)/)) {
        $value2=$2;
        print FILE2 $value2."=inst2 \n";
    }          
}
close (FILE1);
close (FILE2);

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Thanks

In reply to Re^2: Subtract 2 hexadecimal numbers by samd
in thread Subtract 2 hexadecimal numbers by samd

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