Inside GPU

Question

More than one time I looked for a way to print graphics without using a graphic library, but I found nothing that could help me. Some days ago I went again to search a solution to my problem and I noticed operating systems too have at least one graphic library implemented. Now this is my question: is there a way to get an output from the screen using pure x64 assembly only? (or inline assembly in a c/c++ code anyway)

Answer 1

The graphic libraries were coded by someone so you can code your own. It is just a huge amount of work so a better use of your time might be reading the source code of an existing one to understand the concept.

Answer 2

I tried to study pre-existing code with the c++ standard library too, but there wasn 't any block of code, just function declarations.