仿真通常在VM和底层硬件和操作系统之间提供层以便创建如图1中所示的预期的平台环境的幻想。
Emulation commonly provides a layer between the VM and the underlying hardware and operating system to create the illusion of the desired platform environment as shown in Figure 1.
在来宾操作系统的驱动程序窥探内存和硬件寄存器时，软件存在于下面来仿真设备（参见图2）。
When the guest operating system's driver peeks and pokes at the memory and hardware registers, software exists underneath to emulate the device (see Figure 2).
可用于来宾操作系统的虚拟化，或作为完整的机器仿真器使用，运行使用主机CPU或其他CPU架构的操作系统。
You can use it for guest operating system virtualization or as a full machine emulator running operating systems targeted to the host CPU or other CPU architectures.
QEMU是一个平台虚拟化应用程序，让您能够仿真完整的计算机（处理器和相关的外部设备），用于在其上虚拟化另一种操作系统。
QEMU is a platform virtualization application that allows you to emulate an entire computer (processors and associated peripherals) for purposes of virtualizing another operating system on it.
SIMH项目旨在对数十个老式操作系统的全系列进行这样的仿真，包括：1130、Eclipse、Altair、Interdata16b 等等。
The SIMH project aims to do much the same for an entire range of dozens of older systems, including the 1130, Eclipse, Altair, Interdata 16b, and more.
设计嵌入式仿真平台，可以大大缩短开发嵌入式软硬件的周期，使得调试操作系统级的代码更加方便。
Designing embedded simulation platform can shorten embedded software and hardware development cycle greatly and make debugging codes of operating system level more conveniently.
该模型通过被动IP地址伪装、被动操作系统伪装和被动网络拓扑结构伪装，建立一个由虚拟网和真实网交错的复杂仿真网；
The model establish the complex simulation network through the passive IP address camouflage, the passive operating system camouflage and the passive network topology camouflage base on camouflage.
该模型通过被动IP地址伪装、被动操作系统伪装和被动网络拓扑结构伪装，建立一个由虚拟网和真实网交错的复杂仿真网；
The model establish the complex simulation network through the passive IP address camouflage, the passive operating system camouflage and the passive network topology camouflage base on camouflage.
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