+#define OPCODE_URSHIFT 0xa7
+code_t* abc_xxx1(code_t*prev);
+#define xxx1(method) (method->code = abc_xxx1(method->code))
+#define OPCODE_XXX1 0x53
+code_t* abc_xxx2(code_t*prev);
+#define xxx2(method) (method->code = abc_xxx2(method->code))
+#define OPCODE_XXX2 0x01