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Focused mainly on x86 architecture, including x86-64 architecture, instruction encodings, reverse code engineering, and system programming in Windows and Linux OS.

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UEFI Programming - First Steps

In this article, I will describe steps needed to start on with development of real UEFI applications on x86 PC, and share some practical experiences with problems doing so. I will focus on 64-bit version of UEFI, because the 32-bit version isn't much used in this area (most likely due to Microsoft decision not to support UEFI in 32-bit Vista). So, to follow some of my steps here, you'll need a 64-bit CPU (but not 64-bit OS, you can use any 32-bit OS as well). We will finish this article with EFI Hello World application.