Debug function that returns a lower n bytes from a numer as hexadecimal, binary and decimal.

debug_num_to_str.lua

local function num_to_str(num, bytes)
	local num = bit.band(num, 2^(bytes*8) - 1) -- limit to selected bytes
	local bits = {}
	for i=bytes*8-1, 0, -1 do -- from highest bit to lowest
		local bit = (bit.band(num, 2^i) == 0) and 0 or 1 -- check if the current bit is set
		table.insert(bits, bit) -- append to bits table
	end
	return ("0x%.4X  0b%s 0d%d"):format(num, table.concat(bits), num)
end
return num_to_str