[Black Rose]

I don't even see the problem with the code as is.
You say it's wasteful of memory, all I see is one global variable worth 128B.
So unless you start giving some reasons why this code wouldn't be good nobody will waste their FREE time.

You are telling us that you want code to replace other code with. But you haven't even told us what the code should do. This is the XY-problem and it cannot be solved unless you tell us X.