1 files changed, 45 insertions, 0 deletions
diff --git a/tests/test-progs/asmtest/src/riscv/isa/rv64mi/mcsr.S b/tests/test-progs/asmtest/src/riscv/isa/rv64mi/mcsr.S
new file mode 100644
index 000000000..e0256e7ef
--- /dev/null
+++ b/tests/test-progs/asmtest/src/riscv/isa/rv64mi/mcsr.S
@@ -0,0 +1,45 @@
+# See LICENSE for license details.
+
+#*****************************************************************************
+# mcsr.S
+#-----------------------------------------------------------------------------
+#
+# Test various M-mode CSRs.
+#
+
+#include "riscv_test.h"
+#include "test_macros.h"
+
+RVTEST_RV64M
+RVTEST_CODE_BEGIN
+
+  # Check that mcpuid reports the correct XLEN
+#if __riscv_xlen == 64
+  TEST_CASE(2, a0, 0x2, csrr a0, misa; srl a0, a0, 62)
+#else
+  TEST_CASE(2, a0, 0x1, csrr a0, misa; srl a0, a0, 30)
+#endif
+
+  # Check that mhartid reports 0
+  TEST_CASE(3, a0, 0x0, csrr a0, mhartid)
+
+  # Check that reading the following CSRs doesn't cause an exception
+  csrr a0, mimpid
+  csrr a0, marchid
+  csrr a0, mvendorid
+
+  # Check that writing hte following CSRs doesn't cause an exception
+  li t0, 0
+  csrs mtvec, t0
+  csrs mepc, t0
+
+  TEST_PASSFAIL
+
+RVTEST_CODE_END
+
+  .data
+RVTEST_DATA_BEGIN
+
+  TEST_DATA
+
+RVTEST_DATA_END