diff --git a/tests/.gitignore b/tests/.gitignore
new file mode 100644
index 0000000..9a46904
--- /dev/null
+++ b/tests/.gitignore
@@ -0,0 +1,2 @@
+srdl2sv_out
+*.fst
diff --git a/tests/external_registers.rdl b/tests/systemrdl/external_registers.rdl
similarity index 100%
rename from tests/external_registers.rdl
rename to tests/systemrdl/external_registers.rdl
diff --git a/tests/systemrdl/simple_rw_reg.rdl b/tests/systemrdl/simple_rw_reg.rdl
new file mode 100644
index 0000000..f9bcd5a
--- /dev/null
+++ b/tests/systemrdl/simple_rw_reg.rdl
@@ -0,0 +1,6 @@
+addrmap simple_rw_reg {
+    reg {
+        field {sw=rw; hw=rw;} f1 [15:0];
+        field {sw=rw; hw=rw;} f2 [31:16];
+    } register_0 [2];
+};