1 files changed, 24 insertions, 0 deletions
diff --git a/tests/extr_u8.c b/tests/extr_u8.c
new file mode 100644
index 0000000..ee677a9
--- /dev/null
+++ b/tests/extr_u8.c
@@ -0,0 +1,24 @@
+#include <ejit/ejit.h>
+#include <assert.h>
+#include "do_jit.h"
+
+int main()
+{
+	struct ejit_operand operands[1] = {
+		EJIT_OPERAND_GPR(1, EJIT_TYPE(unsigned long))
+	};
+	struct ejit_func *f = ejit_create_func(EJIT_TYPE(unsigned long), 1,
+	                                       operands);
+	ejit_extr_u8(f, EJIT_GPR(0), EJIT_GPR(1));
+	ejit_retr(f, EJIT_GPR(0));
+
+	ejit_select_compile_func(f, 2, 0, EJIT_USE64(unsigned long), do_jit);
+
+	assert(erf1(f, EJIT_ARG(0, unsigned long)) == 0);
+	assert(erf1(f, EJIT_ARG(1, unsigned long)) == 1);
+	assert(erf1(f, EJIT_ARG(0xff, unsigned long)) == 0xff);
+	assert(erf1(f, EJIT_ARG(0xfff, unsigned long)) == 0xff);
+	assert(erf1(f, EJIT_ARG(0xf00, unsigned long)) == 0);
+
+	ejit_destroy_func(f);
+}