I .... okay, my mind is blown. It absolutely says that, and https://en.cppreference.com/cpp/language/types adds "this allows the extreme case in which bytes are sized 64 bits, all types (including char) are 64 bits wide, and sizeof returns 1 for every type."

So that scaling factor is placed into CHAR_BIT, and would be 64 on that DSP compiler.

> An object shall have its stored value accessed only by an lvalue that has one of the following types:

Yes, my confusion comes down to my confusion of what "byte" means in the C spec.

Thank you for your time in pointing this out.