#!/bin/bash
echo -e "\e[97mDummy file builder / calculator v2.0:\e[0m\e[24m"

function help_ {
echo -e "\nUsage $0 bios_size chip_size\n"
}

if [ -x $1 ] |[ -x $2 ]
then
help_
exit 0
fi

result=$[$2-$1]
echo -e "Dummy image size : $result B"

dd if=/dev/zero of=dummy.bin bs=$result count=1 status=none

echo "dummy.bin was generated"