__cnst u64 opcode_write_mask(union code op);
__cnst _Bool has_delay_slot(union code op);
_Bool is_delay_slot(const struct opcode *list, unsigned int offset);
-__cnst _Bool opcode_is_mfc(union code op);
-__cnst _Bool opcode_is_load(union code op);
+__cnst _Bool opcode_has_load_delay(union code op);
__cnst _Bool opcode_is_io(union code op);
__cnst _Bool is_unconditional_jump(union code c);
__cnst _Bool is_syscall(union code c);