How to write bits into a user-defined primitive type?

[Tamas_Papp]

This may help:

Convert to and from Int24

I am want to try an Int24 type, purely for storage. It is easy to declare one with primitive type Int24 <: Signed 24 end but I am not sure how to access its value. I only need conversion to and from Int32, but I don’t think I can use reinterpret because they don’t have the same number of bits. How can I convert to and from Int32? (BTW, I am aware that I destroy alignment and it will degrade performance; it is an experiment)