Is there a book or any other resource that describes SI in as much detail as possible?

Question

C++ / C#

Good time!
I really want to understand how everything works at the level of processor commands, memory, when working with the C language. I know some things, but from interview to interview I understand that my ignorance is more than knowledge. /
I learned K&R by reading and working through the materials twice. Studied various courses on C programming, websites, program operation through debugging, map file, etc. There is always some kind of subtlety that I either do not understand well or do not know.
Tell me how to eradicate your own ignorance in relation to Xi and improve your own professionalism?

Answer 1

At the processor level, everything works not in C, but in machine codes, in assembler, so if you want nuances, study assembler, and then study the work of the C compiler to see how and what it compiles your code to.
Depending on the compiler version, on the platform, on the compiler optimization options, the result may be different.

Answer 2

The most detailed is man.
Write. Write and write again. Learn someone else's code and write your own. If you don't want "a task for the sake of a task" - join some community and try to help them.