新ちゃん 发表于 2020-8-21 01:01:19

RISC-V结构逻辑图


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：

1
2本篇完，感谢关注：RISC-V单片机中文网

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