I've  written  my  first  OpenGL  program in assembly language. That's
  actually a lot easier than you would think because most of the program
  is just calling library functions. Yes, it's a simple program.

  Why am I doing this? Educational purposes. I want to get closer to the
  machine.  It's  not  about   speed   or   optimization.   It's   about
  understanding what happens behind the scenes.

  C  is  already  "close  to the machine", but it's not enough. Assembly
  language is the next step.


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  That's a veeeeery interesting read:

  http://blog.johnnovak.net/2016/09/21/what-every-coder-should-know-about-gamma/

  I was totally unaware of the whole issue. :-(