diff --git a/tests/test_arm.c b/tests/test_arm.c
index f9acdba2..ef05e05c 100644
--- a/tests/test_arm.c
+++ b/tests/test_arm.c
@@ -145,6 +145,7 @@ static void test()
 #define ARM_CODE2 "\xd1\xe8\x00\xf0\xf0\x24\x04\x07\x1f\x3c\xf2\xc0\x00\x00\x4f\xf0\x00\x01\x46\x6c"
 //#define THUMB_CODE "\x70\x47"	// bl 0x26
 //#define THUMB_CODE "\x07\xdd"	// ble 0x1c
+//#define THUMB_CODE "\x01\x47"	// bx r0
 #define THUMB_CODE "\x70\x47\xeb\x46\x83\xb0\xc9\x68\x1f\xb1"
 #define THUMB_CODE2 "\x4f\xf0\x00\x01\xbd\xe8\x00\x88\xd1\xe8\x00\xf0"
 
diff --git a/tests/test_x86.c b/tests/test_x86.c
index a3b949ab..d1d8298d 100644
--- a/tests/test_x86.c
+++ b/tests/test_x86.c
@@ -111,6 +111,7 @@ static void test()
 
 #define X86_CODE16 "\x8d\x4c\x32\x08\x01\xd8\x81\xc6\x34\x12\x00\x00\x05\x23\x01\x00\x00\x36\x8b\x84\x91\x23\x01\x00\x00\x41\x8d\x84\x39\x89\x67\x00\x00\x8d\x87\x89\x67\x00\x00\xb4\xc6"
 //#define X86_CODE16 "\x67\x00\x18"
+//#define X86_CODE32 "\xd1\xe1"	// shl ecx, 1
 #define X86_CODE32 "\x8d\x4c\x32\x08\x01\xd8\x81\xc6\x34\x12\x00\x00\x05\x23\x01\x00\x00\x36\x8b\x84\x91\x23\x01\x00\x00\x41\x8d\x84\x39\x89\x67\x00\x00\x8d\x87\x89\x67\x00\x00\xb4\xc6"
 
 	struct platform platforms[] = {