一种支持同时多线程的VLIW DSP架构

本文提出了一种支持同时多线程的动态分发超长指令字(VLIW)数字信号处理器(DSP)架构。该DSP架构上可以同时运行多个线程，功能单元可以执行来自多个线程的指令，有效地提高DSP的指令吞吐率。为了使多个线程的指令更有效地调度分发到功能单元，该DSP架构还支持指令动态分发，由硬件分发单元而不是编译器来完成多线程指令的动态分配。实验结果表明，相比于单线程而言，本文提出的VLIW DSP架构可以提高功能单元利用率，隐藏存储器访问时延，使处理器的指令吞吐率平均提高约26.89%。

Architecture Design of Simultaneous Multithreading VLIW DSP

A novel simultaneous multithreading(SMT) VLIW DSP architecture with dynamic dispatch mechanism was presented.The SMT technology exploits the unused instruction slots by converting the thread-level parallelism to the instruction-level parallelism,improving the efficiency.With the dynamic dispatch mechanism,the processor issues instructions to functional unit at run-time rather than at compile-time,such that the issue conflicts among multiple threads are reduced significantly.The results show that the DSP arc...