address software

final result address of the address transformation. If the paging mechanism is enabled, linear addresses are transformed into physical addresses using items in the page directory and page tables. If the paging mechanism is not enabled, then the linear address becomes the physical address directly. The physical

First, the conceptPhysical addresses (physical address)For memory chip-level cell addressing, corresponds to the address bus that the processor and CPU are connected to.This concept should be one of the best understanding of these concepts, but it is worth mentioning that although the physical address can be understood directly into the machine on the memory itse

Logical Address virtual address physical address bus address difference, logical Bus 1. Logical Address Logical Address is the most vague concept. The explanation in understanding the linux kernel is related to virtual addresses.

I. Concepts Physical address)It is used for memory chip-level unit addressing, which corresponds to the address bus connected to the processor and CPU.-- This concept should be better understood among these concepts, but it is worth mentioning that although physical addresses can be directly understood as the memory itself inserted on the machine, consider the memory as a large array of serial numbers from

[To] http://bbs.chinaunix.net/thread-2083672-1-1.html I am going to post a year-end summary post for the Chinese New Year. It's just my personal understanding. It's incorrect.The hardware platform involved in this post is x86. If it is another platform, you may not be able to perform one-to-one check. However, I think it is completely feasible.I. Concepts Physical address) It is used for memory chip-level unit addressing, which corresponds to the

The hardware platform involved in this post is x86. If it is another platform, you may not be able to perform one-to-one check. However, I think it is completely feasible. I. Concepts Physical address)It is used for memory chip-level unit addressing, which corresponds to the address bus connected to the processor and CPU.-- This concept should be better understood among these concepts, but it is worth menti

array.2, take out the segment selector in the first 13 bits, you can find the corresponding segment descriptor in this array, so that it is base, that is, the base address to know.3, the base + offset, is to convert the linear address.is quite simple, for the software, in principle, the need to convert the hardware required to prepare the information, you can let the hardware to complete the conversion. OK

selector in the first 13 bits, you can find the corresponding segment descriptor in this array, so that it is base, that is, the base address to know.3, the base + offset, is to convert the linear address.is quite simple, for the software, in principle, the need to convert the hardware required to prepare the information, you can let the hardware to complete the conversion. OK, let's see what Linux does.Se

1. Logical Address Logical Address is the most vague concept. The explanation in understanding the Linux kernel is related to virtual addresses. Based on the concept of hardware MMU and Software Memory Management, you can refer to the second chapter of utlk memory addressing, I have a very detailed explanation. However, the mips architecture processor used in the

Topic:The address that belongs to the network 112.10.200.0/21 is () 112.10.206.0 112.10.217.0 112.10.224.0 112.10.198.0 Analytical Solutions:Summarize: First, understand what the back of that 21 means, 21 means that the first 21 bits of the IP represents the network address, the remaining 11 bits represents the host address. IP