Great overview of much of the firmware and general "OS" stack (for lack of a better word). I'm surprised not to read a mention of the micro-code which all inst

Great overview of much of the firmware and general "OS" stack (for lack of a better word). I'm surprised not to read a mention of the micro-code which all instructions our programs ask the processor to run actually convert to. I suppose that's starting to get too close to a discussion of open hardware, which this post mostly sidesteps. Both are important issues.