可重定向的定制指令集处理器(ASIP)仿真技术研究  

Research on Technique of Retargetable Simulation for Application Specific Instruction Set Processor

作　　者：王志刚[1] 李曦[1] 周学海[1] 余洁[1] 

机构地区：[1]中国科学技术大学计算机科学技术系,安徽合肥230027

出　　处：《系统仿真学报》2007年第6期1249-1255,共7页Journal of System Simulation

基　　金：国家自然科学基金(60273042);高等学校博士学科点专项科研基金(20050358040)

摘　　要：可重定向的定制指令集处理器(ASIP)仿真技术能够提高软硬件开发的协同程度,缩短ASIP的上市时间,是目前ASIP设计方法领域的研究热点之一。提出了一套基于ASIP模型(xpMODEL)的可重定向仿真技术,xpMODEL是一个具有三层架构的ASIP仿真模型,该模型以指令为核心,在支持ASIP的复杂流水机制、多层次并行、专有硬件等特点的同时,能够保证体系结构层精确的仿真。根据xpMODEL的三层架构,仿真器对指令的行为和微结构的操作进行了仿真,并利用ASAP的策略控制xpMODEL中指令的调度与操作时序的仿真,从而实现了仿真器的可重定向性。基于xpMODEL的可重定向仿真技术在支持仿真的精度、仿真复杂度和可重定向性实现的复杂度方面都优于现有可重定向仿真技术,具有广阔的应用前景。Technique of retargetable simulation for Application Specific Instruction Set Processor （ASIP） can improve the parallelism of HW/SW design, A novel retargetable simulation method was proposed based on ASIP model, xpMODEL. xpMODEL is an ASIP simulation model which is of three-level structure. It takes instruction as design core, and supports the description of complex pipelining, different processing levels and specific hardware, Furthermore, it can ensure the accurate simulation of architecture. According to the structure of xpMODEL, simulator can simulate the instruction behavior and micro-architecture operation, It also implements the simulation of instruction scheduling and operation timing based on ASAP strategy, thus ensures retargetability of simulation, The techniques are superior to existed ones in simulation accuracy, simulation complexity and the implementation complexity of retargetability.

关 键 词：定制指令集处理器 仿真 可重定向 仿真模型 

分 类 号：TP301[自动化与计算机技术—计算机系统结构]