diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
new file mode 100644
index 0000000..f435801
--- /dev/null
+++ b/.github/workflows/test.yml
@@ -0,0 +1,11 @@
+name: test
+on: push
+jobs:
+  am-test:
+    name: am-test
+    runs-on: ubuntu-latest
+    steps:
+    - name: checkout
+      uses: actions/checkout@master
+    - name: test
+      run: RUST_TEST_THREADS=1 cargo test --test riscv-tests
\ No newline at end of file
diff --git a/src/cpu/csr.rs b/src/cpu/csr.rs
deleted file mode 100644
index 9589c19..0000000
--- a/src/cpu/csr.rs
+++ /dev/null
@@ -1,11 +0,0 @@
-pub enum CSR {
-  MIE = 0x304,
-  MTVEC = 0x305,
-  MSCRATCH = 0x340,
-  MEPC = 0x341,
-  MCAUSE = 0x342,
-  MTVAL = 0x343,
-  MIP = 0x344,
-  MTINST = 0x34a,
-  MTVAL2 = 0x34b,
-}