PC_EVEC 0x100定义为 cpu异常运行的指令起始地址。 接着是接口定义,可以看到数据通路有host接口,icache dcache以及control模块接口定义。 二、数据通路流水线寄存器定义 classDatapath(implicit val p:Parameters)extendsModulewithCoreParams{val io=IO(newDatapathIO)val csr=Module(newCSR)val regFile=Module(newReg...
组合逻辑(Combinational Logic),其输出只是当前输入的函数,与之前状态无关,无存储功能;另一种是时序逻辑(Sequential Logic),能够存储数据供以后使用,如触发器,memory,寄存器(register,由多个触发器组成)。 上述内容提示我们,除了与或门和加法之类的 ALU 计算,我们还需要寄存器、内存等能够非顺时的保存状态的设备,同时,...
Structural hazard:Datapath 组件的冲突,可能会有同时对memory 的读/写 Data hazard:寄存器等冲突,比如在不同 stage 的数据同时读写一个 reg Control hazard 这让我们不能简单的单个指令执行。 Structutal hazard Solution 1:需要冲突的指令需要 stall Solution 2:增加硬件(下面我们会看到这是怎么实现的) 永远能靠增...
AI代码解释 VexRiscvsmall(RV32I,0.52DMIPS/Mhz,no datapath bypass,no interrupt)->Artix7->243Mhz504LUT505FFCycloneV->174Mhz352ALMs CycloneIV->179Mhz731LUT494FFiCE40->92Mhz1130LCVexRiscvsmall(RV32I,0.52DMIPS/Mhz,no datapath bypass)->Artix7->240Mhz556LUT566FFCycloneV->194Mhz394ALMs CycloneIV...
图: Transforming the TPUv1 datapath into the TPUv2 datapath TPU和NPU是从ASIC出发的,解决了AI算法中最核心的计算,拥有非常好的能效比和性能,但是可编程性和兼容性较差。如TPU在第一代和第二代之间,最大的改动就是去掉了pooling等单元,增加了vector单元和scalar单元,提升了TPU的可编程性和兼容性,如上图所示...
Sid has 11+ years of experience in the formal verification domain, focused mainly on formal property verification and datapath validation methodologies. Frederik Möllerström Lauridsen Verification Engineer SyoSil Frederik Möllerström Lauridsen is a verification engineer at SyoSil. His technical ...
图:Transforming the TPUv1 datapath into the TPUv2 datapath 来源:【The Design Process for Google’s Training Chips: TPUv2 and TPUv3 】 “我们已经在我们的数据中心内运行 TPU 一年多了,并且发现它们为机器学习提供了一个数量级更好的每瓦优化性能。这大致相当于未来七年左右的快进技术(三代摩尔定律)。
Sid has 11+ years of experience in the formal verification domain, focused mainly on formal property verification and datapath validation methodologies. Frederik Möllerström Lauridsen Verification Engineer SyoSil Frederik Möllerström Lauridsen is a verification engineer at SyoSil. His technical ...
1、通过本次实验,我进一步了解了RISC-V MINI的架构,并且学习到了如何新增一条指令。 2、明白了Instruction.scala Control.scala Datapath.scala build.sbt的运行原理,理解了其中代码的结构。 3、进一步学习了如何通过波形图调试代码,能够对riscv代码具备一定的代码分析能力。
Transport triggered architectures (TTAs) follow the static programming model of very long instruction word (VLIW) processors but expose additional information of the processor datapath in the programming interface, which enables low-level code optimizations but results in lower code density. Multi-...