有人预言,RISC-V或将是继Intel和Arm之后的第三大主流处理器体系。欢迎访问全球首家只专注于RISC-V单片机行业应用的中文网站
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说明: 执行6级流水作业: 1. fetch(取指) 2. decode(译码) 3. dispatch/renaming(分发/重命名) 4. select/wakeup(选择/唤醒) 5. execution/mem access/finish(执行/存取/结束) 6. complete/retire(完成/恢复)
六级流水作业的另一种划分说法: The six-stage pipeline should be divided into the following stages: - Instruction Fetch (取指)-- request instruction from iMem and update PC
- Decode(译码) -- receive response from iMem and decode instruction
- Register Fetch(取寄存器) -- read from the register file
- Execute(执行) -- execute the instruction and redirect the processor if necessary
- Memory(存储) -- send memory request to dMem
- Write Back(回写) -- receive memory response from dMem (if applicable) and write to register file
设计完成后的芯片:
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