Descriptor privilege level - PowerPoint PPT Presentation

Executing an ELF executable

Executing an ELF executable. How to load an executable ELF file for execution in ‘extended’ physical memory. What is ‘Extended Memory’?. extended memory. 4GB. extended memory. 16MB. conventional memory. conventional memory. conventional memory. 1MB. 8086/8088

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A ‘protected-mode’ exploration

A ‘protected-mode’ exploration. A look at the steps needed to build segment-descriptors for displaying a message while in protected-mode. Segment-Descriptor Format. 63. 32. Base[31..24]. G. D. R S V. A V L. Limit [19..16]. P. D P L. S. X. C / D. R / W. A. Base[23..16].

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268 views • 14 slides

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