模拟器作为嵌入式系统研究的基础研发工具，可辅助系统体系结构调优、软硬件协同设计。本文实现了具有良好配置性及可扩展性的ArmSim 模拟器，该模拟器是针对ARM 处理器的全系统模拟器，可在其上运行和调试ARM 应用级和系统级的目标程序。本文详细描述ArmSim 的设计与实现细节。关键词：ARM 处理器；模拟；全系统模拟器Abstract: Simulators have become essential tools for embedded system research and development, which can help architecture optimization and software-hardware codesign。Thepresented ArmSim simulator is a full-system simulator for the ARM processor, on which ARMapplication programs and system programs can be executed exactly. We discuss the whole design and the implementation, the configurability and extensibility are considered.Keywords: ARM Processor; Simulation; Full-System Simulator