'Global descriptor table' diaporamas de présentation

80386DX

80386DX. Programming Model. The basic programming model consists of the following aspects: Registers Instruction Format Addressing Modes Data types Memory Organization and Segmentation Interrupts and Exceptions. Memory Organization and Segmentation. Introduction.

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The Pentium Processor

The Pentium Processor. Chapter 3 S. Dandamudi. Pentium family history Pentium registers Data Pointer and index Control Segment Protected mode memory architecture Segment registers Segment descriptors Segment descriptor tables Segmentation models. Real mode memory architecture

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Memory Addressing in Linux (Chap. 2 in Understanding the Linux Kernel)

Memory Addressing in Linux (Chap. 2 in Understanding the Linux Kernel). J. H. Wang Oct. 15, 2009. Outline. Memory Addresses Segmentation in Hardware Segmentation in Linux Paging in Hardware Paging in Linux. Memory Addresses. 3 kinds of addresses in 80x86 microprocessors Logical address

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Operating Systems

Operating Systems. Prof. Navneet Goyal Department of Computer Science & Information Systems BITS, Pilani. Topics for Today. Segmentation Segmentation vs. paging Pentium Segmentation. Paging. Suffers from internal fragmentation NO user view Page size fixed

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The Linux Kernel: Signals & Interrupts

The Linux Kernel: Signals & Interrupts. Signals. Introduced in UNIX systems to simplify IPC. Used by the kernel to notify processes of system events. A signal is a short message sent to a process, or group of processes, containing the number identifying the signal.

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The Microprocessor and Its Architecture

The Microprocessor and Its Architecture. A Course in Microprocessor Electrical Engineering Department University of Indonesia. Protected Mode Memory Addressing.

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Segmentation

Segmentation. Segmentation provides the basis of protection which encapsulates regions of memory which have common attributes. All information about a segment is stored in an 8-byte data structure called a descriptor . All descriptors are contained in tables recognized by hardware. 1.

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Address Translation - Mapping virtual addresses to physical memory

Address Translation - Mapping virtual addresses to physical memory. user. Mapping via page table entries Indirect relationship between virtual pages and physical memory. Virtual pages. x86:. Physical memory. 31. 22. 21. 12. 11. 0. system. 10. 10. 12. Page directory index. user.

1.06k views • 4 slides