#!/bin/bash

function oct2asc() {
	if [[ $1 ]]; then
		echo -en "\0$(printf %o $((8#$1)))"
	fi
}

function oct2dec() {
	if [[ $1 ]]; then
		echo $((8#$1))
	fi
}


IFS=$'\n'
list=$( cmp -l $1 $2 )
for i in $list
do
        lval=$val
        val=$( echo $i | awk '{ print $1 }' )
        if [[ $lval != "" ]]; then
                if [[ $val != $(( lval + 1 )) ]]; then
                        echo
                fi
        fi
        data=$( echo $i | awk '{ print $2, $3 }' )
        i="$(( val - 1 )) $data"
        echo $i | awk 'function oct2dec(oct,     dec) {
                for (i = 1; i <= length(oct); i++) {
                        dec *= 8;
                        dec += substr(oct, i, 1)
                };
                return dec
        }

        {
                printf "%08X %02X %02X ", $1, oct2dec($2), oct2dec($3)
        }'

	val1=$( echo $i | awk '{ print $2 }' )
	val2=$( echo $i | awk '{ print $3 }' )

	val1dec=$( oct2dec $val1 )
	val2dec=$( oct2dec $val2 )

	if [[ $val1dec -ge 32 && $val1dec -le 126 ]]
	then
		oct2asc $val1
	else
		printf " "
	fi

	if [[ $val2dec -ge 32 && $val2dec -le 126 ]]
	then
		printf " "
		oct2asc $val2
	fi

	echo

done