README.md

aura-core (my undergraduate graduation project)

Architecture

develop-env

• vscode
  • Verilog-HDL/SystemVerilog
• ctags
• Verible
• verilator >= 5.012 (very important!!)
• yosys (with plugin antmicro/yosys-systemverilog)

doc and architecture

plz see *.drawio.png in ./doc

emulation with verilator

aura support a serial of simple options

# compile
export AURA_HOME=`pwd`
make aura # if enable wave trace: make aura USE_TRACE=1

# for help
./build/aura -h

# simple test
./build/aura -f ready-to-run/simpletest0.bin 
# if enable difftest
./build/aura -f ready-to-run/simpletest0.bin -d diff-ref-so/riscv64-spike-so
# fully argument
./build/aura -f ready-to-run/simpletest0.bin -d diff-ref-so/riscv64-spike-so --debug-flags COMMIT -e t2000

# enable debug flags
./build/aura -f ready-to-run/simpletest0.bin -d diff-ref-so/riscv64-spike-so --debug-flags FETCH,DECODE,COMMIT
# all debug flags can be find at sim/verilator/inc/flags.hpp

statistics

aura will dump some message when run completed

all statistical keywords can be found at stats.txt

O3PipeView

# run with debug flag PIPELINE
./build/aura -f firmware/build/Debug/firmware.bin -d diff-ref-so/riscv64-spike-so --debug-flags PIPELINE > log.txt
python3 tools/pipeview.py > pipeview.txt

open pipeview.txt

difftest support

now aura use spike to difftest

git clone https://github.com/tastynoob/riscv-isa-sim.git

cd riscv-isa-sim && git checkout aura-difftest

cd difftest && make CPU=AURA

cp build/riscv64-spike-so $AURA_HOME/diff-ref-so

compile for aura firmware

go to ./firmware
install vscode plugin EIDE
open firmware.code-workspace

thanks for any help!