RISC-V 模拟器

本模拟器使用5级流水线，并包含分支预测功能

本模拟器目前仅支持RV64I基本指令集及部分M扩展集指令。

编译

mkdir build
cd build
cmake ..
make

使用方法

./Sim riscv-elf-file-name [-v] [-s] [-d] [-b strategy]

Parameters:

1. -v for verbose output, can redirect output to file for further analysis
2. -s for single step execution, often used in combination with -v.
3. -d for creating memory and register history dump in dump.txt
4. -b for branch perdiction strategy (default BTFNT), accepted parameters are AT, NT, BTFNT and BPB.
   • AT: Always Taken
   • NT: Always Not Taken
   • BTFNT: Back Taken Forward Not Taken
   • BPB: Branch Prediction Buffer (2 bit history information)

There are a number of reference RISC-V ELFs and its corresponding assembly code in the riscv-elf/ folder.

文档

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