Quickstart

Follow the steps and verify case on qemu for vector instruction.

Step1: Setup tools

Setup prebuilt GCC toolchain

git clone https://github.com/c-sky/xuantie-vector-demos.git

cd riscv-vector-demos

mkdir toolchain

tar xf riscv64-linux-x86_64.tbz2 -C toolchain

Setup QEMU

Use prebuilt qemu for Ubuntu-16.04 host on X86-64 platform:

mkdir qemu

tar xf csky-qemu-x86_64-Ubuntu-16.04-20200512-1231.tar.gz -C qemu

For other host, you can also build qemu from source code:

git clone https://github.com/qemu/qemu.git

cd qemu

./configure

make

More infomation please reference here.

Step2: Build case

./toolchain/bin/riscv64-unknown-linux-gnu-gcc -O2 test/run/vlbuv_uint32xm2-1.c

More unit test of vector please reference test/gcc

Step3: Run case

Run on prebuilt qemu

qemu-riscv64 -cpu c910v a.out

Run on source qemu

qemu-riscv64 -cpu rv64,x-v=true,vlen=128,elen=64,vext_spec=v0.7.1 a.out

Step4: Bug reporting

Any issue please let me konw :)

[email protected]