Description: Simple Operating Systems (referred to as SOS) is a run on X86 platform (including QEMU, BOCHS, VirtualBOX simulator, etc.) teaching-oriented series of micro-embedded operating system software. From SOS-1 to SOS9, gradually completed a never (only display) to have (virtual memory, file system, thread, process) operating system creation process. Through the analysis, operation and revise the operating system, the actual realization of the operating system will have a better understanding. This is Part IX of SOS-9. SOS-1 to the SOS-9 relatively independent, and one is based on the other. Generally can be compiled under Linux and can be run through the QEMU simulator and debugging. Is to study the actual operating system running on a good thing!
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