logical adj. 1.逻辑的,逻辑上的;逻辑学上的。 2.合乎逻辑的。 3.逻辑上必然的。 logical constants 逻辑常词[常项]。 logical necessity 逻辑的必然性。 a logical argument 条件分明的论证。 a logical process 合理的程序,合乎逻辑的[必然的]过程。 the logical result 必然的结果。 adv. -ly ,-ness n.
The cpu uses two units to transform the logical address into physical addresses Cpu使用两种单元将逻辑地址转换成物理地址。
The logical address is usually used when requesting information from a controller 逻辑地址通常在请求控制器中的信息时使用。
Figure 3 shows the graphical representation to obtain the linear address from logical address 图3展示了从逻辑地址获得线性地址。
The physical address may be different from the logical address , in which case the memory management unit translates the logical address into a physical address 物理地址可能与逻辑地址不同,内存管理单元可以将逻辑地址转换成物理地址。
Because we use the non - programmable register , gdt or ldt is not referred to while the translation from the logical address to the linear address is performed 由于我们使用了不可编程寄存器,因此在将逻辑地址转换成线性地址时不引用gdt或ldt 。
As with paging , this mapping requires two memory references per logical address , effectively slowing the computer system by a factor of two , unless something is done 如同对源程序编码给予定位一样,这种变换需要每一逻辑地址有两个内存参考。如果没有什么措施,则会有效地使用计算机系统运算速度降低一半。
As we saw earlier in the section on linux and segmentation , each segment descriptor uses same set of addresses for linear addressing , minimizing the need to use the segmentation unit to convert logical addresses to linear addresses 前面介绍linux分段模型时已提到,每个分段描述符都使用相同的地址集进行线性寻址,从而尽可能降低使用分段单元将逻辑地址转换成线性地址的需要。
In a virtual - memory system , programs are given access to a larger set of addresses than is physically available , and a dedicated memory manager maps these logical addresses to actual locations , using temporary storage on disc to hold the overflow 在虚拟内存系统中,程序可以访问超出可用物理内存的更大的地址集合,专用内存管理程序将这些逻辑地址映射到实际地址,使用磁盘上的临时存储保存超出的部分。
百科解释
In computing, a logical address is the address at which an item (memory cell, storage element, network host) appears to reside from the perspective of an executing application program.