Go to the source: the Intel Software Developer Manuals. https://www.intel.com/content/www/us/en/developer/articles/technical/intel-sdm.html https://www.intel.c

Go to the source: the Intel Software Developer Manuals. https://www.intel.com/content/www/us/en/developer/articles/technical/intel-sdm.html https://www.intel.com/content/www/us/en/developer/articles/t... You will want the first two volumes. For LLVM and JIT work you don't need the last two volumes. Not kind, or gentle, but certainly definitive and authoritative.