1 files changed, 43 insertions, 0 deletions
diff --git a/isa/rv64si/illegal.S b/isa/rv64si/illegal.S
new file mode 100644
index 0000000..b068118
--- /dev/null
+++ b/isa/rv64si/illegal.S
@@ -0,0 +1,43 @@
+# See LICENSE for license details.
+
+#*****************************************************************************
+# illegal.S
+#-----------------------------------------------------------------------------
+#
+# Test illegal instruction trap.
+#
+
+#include "riscv_test.h"
+#include "test_macros.h"
+
+RVTEST_RV64S
+RVTEST_CODE_BEGIN
+
+  la t0, stvec
+  csrw stvec, t0
+
+  li TESTNUM, 2
+  .word 0
+  j fail
+
+  j pass
+
+  TEST_PASSFAIL
+
+stvec:
+  li t1, CAUSE_ILLEGAL_INSTRUCTION
+  csrr t0, scause
+  bne t0, t1, fail
+  csrr t0, sepc
+  addi t0, t0, 8
+  csrw sepc, t0
+  sret
+
+RVTEST_CODE_END
+
+  .data
+RVTEST_DATA_BEGIN
+
+  TEST_DATA
+
+RVTEST_DATA_END