1 files changed, 31 insertions, 0 deletions
diff --git a/tests/sti_s.c b/tests/sti_s.c
new file mode 100644
index 0000000..00941ea
--- /dev/null
+++ b/tests/sti_s.c
@@ -0,0 +1,31 @@
+#include "test.h"
+
+static uint16_t data[] = { 0x1212, 0x0000, 0x3434 };
+
+static void
+run_test(jit_state_t *j, uint8_t *arena_base, size_t arena_size)
+{
+	jit_begin(j, arena_base, arena_size);
+	size_t align = jit_enter_jit_abi(j, 0, 0, 0);
+	jit_load_args_1(j, jit_operand_gpr (JIT_OPERAND_ABI_INT16, JIT_R1));
+
+	jit_sti_s(j, &data[1], JIT_R1);
+	jit_leave_jit_abi(j, 0, 0, align);
+	jit_ret(j);
+
+	void (*f)(int16_t) = jit_end(j, NULL);
+
+	ASSERT(data[0] == 0x1212);
+	ASSERT(data[1] == 0);
+	ASSERT(data[2] == 0x3434);
+	f(-1);
+	ASSERT(data[0] == 0x1212);
+	ASSERT(data[1] == 0xffff);
+	ASSERT(data[2] == 0x3434);
+}
+
+int
+main (int argc, char *argv[])
+{
+	return main_helper(argc, argv, run_test);
+}