To be sure that you know what you're doing, specifically in the sense of what executable code you're likely to generate using a given compiler, you need to study the compiler documentation. That's not only true of 'C', but of any compiled language. You can express your desired actions in a number of ways, but you have the opportunity, knowing the compiler, to choose, rather than leaving it up to chance.

I wonder if you've studied the BASCOM documentation. If not, you may be better of simply switching to 'C', as it's pretty easy to learn, very flexible, and well documented as a language. Your chosen compiler may or may not have detailed specifics. That would influence my choice, were I to make one.

RE