Abstract: A fast implementation of cycle-level processor simulator is introduced，which is based on function-level processor simulator，with timing-directed method involved.This method uses an instruction pipeline to drive function module of processor simulator work，such as ALU，Co-processor，MMU，and TLB.This paper presents the design of a classic pipeline of RISC/MIPS instruction set，and how to integrate the pipeline and function module of processor simulator，to generate a cycle-level processor simulator framework.The tests of SPEC CPU 2000 prove that，this cycle-level processor simulator has high accurate and performance.

Key words: function-level, cycle-level, timing-direct, processor simulator

摘要： 基于功能级处理器模拟器，采用时序制导的方法，提出了一种时钟级处理器模拟器的快速开发方法。该方法对指令的模拟引入流水线，依靠流水线的时序推动功能模块的运行，如ALU、Co-processor、MMU、TLB等。给出了RISC/MIPS流水线的设计方法，并进一步阐述了如何将流水线和处理器功能级模拟单元的耦合起来，构成时钟级模拟的整体框架。基于此框架，开发了ClkSim模拟器。经过SPEC CPU 2000的对比测试，ClkSim拥有较高的模拟性能和精度。

关键词: 功能级, 时钟级, 时序制导, 处理器模拟